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mutter/cogl/cogl-pipeline-state.c

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pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2008,2009,2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl-context-private.h"
#include "cogl-color-private.h"
#include "cogl-blend-string.h"
#include "cogl-util.h"
#include "cogl-depth-state-private.h"
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
#include "cogl-pipeline-state-private.h"
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
#include "string.h"
#ifndef GL_FUNC_ADD
#define GL_FUNC_ADD 0x8006
#endif
CoglPipeline *
_cogl_pipeline_get_user_program (CoglPipeline *pipeline)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), NULL);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_USER_SHADER);
return authority->big_state->user_program;
}
gboolean
_cogl_pipeline_color_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
return cogl_color_equal (&authority0->color, &authority1->color);
}
gboolean
_cogl_pipeline_lighting_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
CoglPipelineLightingState *state0 = &authority0->big_state->lighting_state;
CoglPipelineLightingState *state1 = &authority1->big_state->lighting_state;
if (memcmp (state0->ambient, state1->ambient, sizeof (float) * 4) != 0)
return FALSE;
if (memcmp (state0->diffuse, state1->diffuse, sizeof (float) * 4) != 0)
return FALSE;
if (memcmp (state0->specular, state1->specular, sizeof (float) * 4) != 0)
return FALSE;
if (memcmp (state0->emission, state1->emission, sizeof (float) * 4) != 0)
return FALSE;
if (state0->shininess != state1->shininess)
return FALSE;
return TRUE;
}
gboolean
_cogl_pipeline_alpha_func_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
CoglPipelineAlphaFuncState *alpha_state0 =
&authority0->big_state->alpha_state;
CoglPipelineAlphaFuncState *alpha_state1 =
&authority1->big_state->alpha_state;
return alpha_state0->alpha_func == alpha_state1->alpha_func;
}
gboolean
_cogl_pipeline_alpha_func_reference_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
CoglPipelineAlphaFuncState *alpha_state0 =
&authority0->big_state->alpha_state;
CoglPipelineAlphaFuncState *alpha_state1 =
&authority1->big_state->alpha_state;
return (alpha_state0->alpha_func_reference ==
alpha_state1->alpha_func_reference);
}
gboolean
_cogl_pipeline_blend_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
CoglPipelineBlendState *blend_state0 = &authority0->big_state->blend_state;
CoglPipelineBlendState *blend_state1 = &authority1->big_state->blend_state;
_COGL_GET_CONTEXT (ctx, FALSE);
#if defined(HAVE_COGL_GLES2) || defined(HAVE_COGL_GL)
if (ctx->driver != COGL_DRIVER_GLES1)
{
if (blend_state0->blend_equation_rgb != blend_state1->blend_equation_rgb)
return FALSE;
if (blend_state0->blend_equation_alpha !=
blend_state1->blend_equation_alpha)
return FALSE;
if (blend_state0->blend_src_factor_alpha !=
blend_state1->blend_src_factor_alpha)
return FALSE;
if (blend_state0->blend_dst_factor_alpha !=
blend_state1->blend_dst_factor_alpha)
return FALSE;
}
#endif
if (blend_state0->blend_src_factor_rgb !=
blend_state1->blend_src_factor_rgb)
return FALSE;
if (blend_state0->blend_dst_factor_rgb !=
blend_state1->blend_dst_factor_rgb)
return FALSE;
#if defined(HAVE_COGL_GLES2) || defined(HAVE_COGL_GL)
if (ctx->driver != COGL_DRIVER_GLES1 &&
(blend_state0->blend_src_factor_rgb == GL_ONE_MINUS_CONSTANT_COLOR ||
blend_state0->blend_src_factor_rgb == GL_CONSTANT_COLOR ||
blend_state0->blend_dst_factor_rgb == GL_ONE_MINUS_CONSTANT_COLOR ||
blend_state0->blend_dst_factor_rgb == GL_CONSTANT_COLOR))
{
if (!cogl_color_equal (&blend_state0->blend_constant,
&blend_state1->blend_constant))
return FALSE;
}
#endif
return TRUE;
}
gboolean
_cogl_pipeline_depth_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
if (authority0->big_state->depth_state.test_enabled == FALSE &&
authority1->big_state->depth_state.test_enabled == FALSE)
return TRUE;
else
{
CoglDepthState *s0 = &authority0->big_state->depth_state;
CoglDepthState *s1 = &authority1->big_state->depth_state;
return s0->test_enabled == s1->test_enabled &&
s0->test_function == s1->test_function &&
s0->write_enabled == s1->write_enabled &&
s0->range_near == s1->range_near &&
s0->range_far == s1->range_far;
}
}
gboolean
_cogl_pipeline_fog_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
CoglPipelineFogState *fog_state0 = &authority0->big_state->fog_state;
CoglPipelineFogState *fog_state1 = &authority1->big_state->fog_state;
if (fog_state0->enabled == fog_state1->enabled &&
cogl_color_equal (&fog_state0->color, &fog_state1->color) &&
fog_state0->mode == fog_state1->mode &&
fog_state0->density == fog_state1->density &&
fog_state0->z_near == fog_state1->z_near &&
fog_state0->z_far == fog_state1->z_far)
return TRUE;
else
return FALSE;
}
gboolean
_cogl_pipeline_point_size_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
return authority0->big_state->point_size == authority1->big_state->point_size;
}
gboolean
_cogl_pipeline_logic_ops_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
CoglPipelineLogicOpsState *logic_ops_state0 = &authority0->big_state->logic_ops_state;
CoglPipelineLogicOpsState *logic_ops_state1 = &authority1->big_state->logic_ops_state;
return logic_ops_state0->color_mask == logic_ops_state1->color_mask;
}
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
gboolean
_cogl_pipeline_cull_face_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
CoglPipelineCullFaceState *cull_face_state0
= &authority0->big_state->cull_face_state;
CoglPipelineCullFaceState *cull_face_state1
= &authority1->big_state->cull_face_state;
/* The cull face state is considered equal if two pipelines are both
set to no culling. If the front winding property is ever used for
anything else or the comparison is used not just for drawing then
this would have to change */
if (cull_face_state0->mode == COGL_PIPELINE_CULL_FACE_MODE_NONE)
return cull_face_state1->mode == COGL_PIPELINE_CULL_FACE_MODE_NONE;
return (cull_face_state0->mode == cull_face_state1->mode &&
cull_face_state0->front_winding == cull_face_state1->front_winding);
}
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
gboolean
_cogl_pipeline_user_shader_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
return (authority0->big_state->user_program ==
authority1->big_state->user_program);
}
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
typedef struct
{
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
const CoglBoxedValue **dst_values;
const CoglBoxedValue *src_values;
int override_count;
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
} GetUniformsClosure;
static gboolean
get_uniforms_cb (int uniform_num, void *user_data)
{
GetUniformsClosure *data = user_data;
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
if (data->dst_values[uniform_num] == NULL)
data->dst_values[uniform_num] = data->src_values + data->override_count;
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
data->override_count++;
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
return TRUE;
}
static void
_cogl_pipeline_get_all_uniform_values (CoglPipeline *pipeline,
const CoglBoxedValue **values)
{
GetUniformsClosure data;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
memset (values, 0,
sizeof (const CoglBoxedValue *) * ctx->n_uniform_names);
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
data.dst_values = values;
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
do
{
const CoglPipelineUniformsState *uniforms_state =
&pipeline->big_state->uniforms_state;
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
data.override_count = 0;
data.src_values = uniforms_state->override_values;
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
if ((pipeline->differences & COGL_PIPELINE_STATE_UNIFORMS))
_cogl_bitmask_foreach (&uniforms_state->override_mask,
get_uniforms_cb,
&data);
pipeline = _cogl_pipeline_get_parent (pipeline);
}
while (pipeline);
}
gboolean
_cogl_pipeline_uniforms_state_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
unsigned long *differences;
const CoglBoxedValue **values0, **values1;
int n_longs;
int i;
_COGL_GET_CONTEXT (ctx, FALSE);
if (authority0 == authority1)
return TRUE;
values0 = g_alloca (sizeof (const CoglBoxedValue *) * ctx->n_uniform_names);
values1 = g_alloca (sizeof (const CoglBoxedValue *) * ctx->n_uniform_names);
n_longs = COGL_FLAGS_N_LONGS_FOR_SIZE (ctx->n_uniform_names);
differences = g_alloca (n_longs * sizeof (unsigned long));
memset (differences, 0, sizeof (unsigned long) * n_longs);
_cogl_pipeline_compare_uniform_differences (differences,
authority0,
authority1);
_cogl_pipeline_get_all_uniform_values (authority0, values0);
_cogl_pipeline_get_all_uniform_values (authority1, values1);
COGL_FLAGS_FOREACH_START (differences, n_longs, i)
{
const CoglBoxedValue *value0 = values0[i];
const CoglBoxedValue *value1 = values1[i];
Fix comparing the uniforms state When comparing uniform values, it was not correctly handling the case where pipeline0 has the value set but pipeline1 does not (only the other way around) so it would crash. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-17 11:35:23 -05:00
if (value0 == NULL)
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
{
if (value1 != NULL && value1->type != COGL_BOXED_NONE)
return FALSE;
}
Fix comparing the uniforms state When comparing uniform values, it was not correctly handling the case where pipeline0 has the value set but pipeline1 does not (only the other way around) so it would crash. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-17 11:35:23 -05:00
else if (value1 == NULL)
{
if (value0 != NULL && value0->type != COGL_BOXED_NONE)
return FALSE;
}
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
else if (!_cogl_boxed_value_equal (value0, value1))
return FALSE;
}
COGL_FLAGS_FOREACH_END;
return TRUE;
}
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
void
cogl_pipeline_get_color (CoglPipeline *pipeline,
CoglColor *color)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_COLOR);
*color = authority->color;
}
/* This is used heavily by the cogl journal when logging quads */
void
_cogl_pipeline_get_colorubv (CoglPipeline *pipeline,
guint8 *color)
{
CoglPipeline *authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_COLOR);
_cogl_color_get_rgba_4ubv (&authority->color, color);
}
void
cogl_pipeline_set_color (CoglPipeline *pipeline,
const CoglColor *color)
{
CoglPipelineState state = COGL_PIPELINE_STATE_COLOR;
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
if (cogl_color_equal (color, &authority->color))
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, color, FALSE);
pipeline->color = *color;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_color_equal);
_cogl_pipeline_update_blend_enable (pipeline, state);
}
void
cogl_pipeline_set_color4ub (CoglPipeline *pipeline,
guint8 red,
guint8 green,
guint8 blue,
guint8 alpha)
{
CoglColor color;
cogl_color_init_from_4ub (&color, red, green, blue, alpha);
cogl_pipeline_set_color (pipeline, &color);
}
void
cogl_pipeline_set_color4f (CoglPipeline *pipeline,
float red,
float green,
float blue,
float alpha)
{
CoglColor color;
cogl_color_init_from_4f (&color, red, green, blue, alpha);
cogl_pipeline_set_color (pipeline, &color);
}
CoglPipelineBlendEnable
_cogl_pipeline_get_blend_enabled (CoglPipeline *pipeline)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_BLEND_ENABLE);
return authority->blend_enable;
}
gboolean
_cogl_pipeline_blend_enable_equal (CoglPipeline *authority0,
CoglPipeline *authority1)
{
return authority0->blend_enable == authority1->blend_enable ? TRUE : FALSE;
}
void
_cogl_pipeline_set_blend_enabled (CoglPipeline *pipeline,
CoglPipelineBlendEnable enable)
{
CoglPipelineState state = COGL_PIPELINE_STATE_BLEND_ENABLE;
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
_COGL_RETURN_IF_FAIL (enable > 1 &&
"don't pass TRUE or FALSE to _set_blend_enabled!");
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
if (authority->blend_enable == enable)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
pipeline->blend_enable = enable;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_blend_enable_equal);
_cogl_pipeline_update_blend_enable (pipeline, state);
}
void
cogl_pipeline_get_ambient (CoglPipeline *pipeline,
CoglColor *ambient)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_LIGHTING);
cogl_color_init_from_4fv (ambient,
authority->big_state->lighting_state.ambient);
}
void
cogl_pipeline_set_ambient (CoglPipeline *pipeline,
const CoglColor *ambient)
{
CoglPipelineState state = COGL_PIPELINE_STATE_LIGHTING;
CoglPipeline *authority;
CoglPipelineLightingState *lighting_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
lighting_state = &authority->big_state->lighting_state;
if (cogl_color_equal (ambient, &lighting_state->ambient))
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
lighting_state = &pipeline->big_state->lighting_state;
lighting_state->ambient[0] = cogl_color_get_red_float (ambient);
lighting_state->ambient[1] = cogl_color_get_green_float (ambient);
lighting_state->ambient[2] = cogl_color_get_blue_float (ambient);
lighting_state->ambient[3] = cogl_color_get_alpha_float (ambient);
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_lighting_state_equal);
_cogl_pipeline_update_blend_enable (pipeline, state);
}
void
cogl_pipeline_get_diffuse (CoglPipeline *pipeline,
CoglColor *diffuse)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_LIGHTING);
cogl_color_init_from_4fv (diffuse,
authority->big_state->lighting_state.diffuse);
}
void
cogl_pipeline_set_diffuse (CoglPipeline *pipeline,
const CoglColor *diffuse)
{
CoglPipelineState state = COGL_PIPELINE_STATE_LIGHTING;
CoglPipeline *authority;
CoglPipelineLightingState *lighting_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
lighting_state = &authority->big_state->lighting_state;
if (cogl_color_equal (diffuse, &lighting_state->diffuse))
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
lighting_state = &pipeline->big_state->lighting_state;
lighting_state->diffuse[0] = cogl_color_get_red_float (diffuse);
lighting_state->diffuse[1] = cogl_color_get_green_float (diffuse);
lighting_state->diffuse[2] = cogl_color_get_blue_float (diffuse);
lighting_state->diffuse[3] = cogl_color_get_alpha_float (diffuse);
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_lighting_state_equal);
_cogl_pipeline_update_blend_enable (pipeline, state);
}
void
cogl_pipeline_set_ambient_and_diffuse (CoglPipeline *pipeline,
const CoglColor *color)
{
cogl_pipeline_set_ambient (pipeline, color);
cogl_pipeline_set_diffuse (pipeline, color);
}
void
cogl_pipeline_get_specular (CoglPipeline *pipeline,
CoglColor *specular)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_LIGHTING);
cogl_color_init_from_4fv (specular,
authority->big_state->lighting_state.specular);
}
void
cogl_pipeline_set_specular (CoglPipeline *pipeline, const CoglColor *specular)
{
CoglPipeline *authority;
CoglPipelineState state = COGL_PIPELINE_STATE_LIGHTING;
CoglPipelineLightingState *lighting_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
lighting_state = &authority->big_state->lighting_state;
if (cogl_color_equal (specular, &lighting_state->specular))
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
lighting_state = &pipeline->big_state->lighting_state;
lighting_state->specular[0] = cogl_color_get_red_float (specular);
lighting_state->specular[1] = cogl_color_get_green_float (specular);
lighting_state->specular[2] = cogl_color_get_blue_float (specular);
lighting_state->specular[3] = cogl_color_get_alpha_float (specular);
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_lighting_state_equal);
_cogl_pipeline_update_blend_enable (pipeline, state);
}
float
cogl_pipeline_get_shininess (CoglPipeline *pipeline)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), 0);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_LIGHTING);
return authority->big_state->lighting_state.shininess;
}
void
cogl_pipeline_set_shininess (CoglPipeline *pipeline,
float shininess)
{
CoglPipeline *authority;
CoglPipelineState state = COGL_PIPELINE_STATE_LIGHTING;
CoglPipelineLightingState *lighting_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
if (shininess < 0.0)
{
g_warning ("Out of range shininess %f supplied for pipeline\n",
shininess);
return;
}
authority = _cogl_pipeline_get_authority (pipeline, state);
lighting_state = &authority->big_state->lighting_state;
if (lighting_state->shininess == shininess)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
lighting_state = &pipeline->big_state->lighting_state;
lighting_state->shininess = shininess;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_lighting_state_equal);
}
void
cogl_pipeline_get_emission (CoglPipeline *pipeline,
CoglColor *emission)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_LIGHTING);
cogl_color_init_from_4fv (emission,
authority->big_state->lighting_state.emission);
}
void
cogl_pipeline_set_emission (CoglPipeline *pipeline, const CoglColor *emission)
{
CoglPipeline *authority;
CoglPipelineState state = COGL_PIPELINE_STATE_LIGHTING;
CoglPipelineLightingState *lighting_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
lighting_state = &authority->big_state->lighting_state;
if (cogl_color_equal (emission, &lighting_state->emission))
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
lighting_state = &pipeline->big_state->lighting_state;
lighting_state->emission[0] = cogl_color_get_red_float (emission);
lighting_state->emission[1] = cogl_color_get_green_float (emission);
lighting_state->emission[2] = cogl_color_get_blue_float (emission);
lighting_state->emission[3] = cogl_color_get_alpha_float (emission);
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_lighting_state_equal);
_cogl_pipeline_update_blend_enable (pipeline, state);
}
static void
_cogl_pipeline_set_alpha_test_function (CoglPipeline *pipeline,
CoglPipelineAlphaFunc alpha_func)
{
CoglPipelineState state = COGL_PIPELINE_STATE_ALPHA_FUNC;
CoglPipeline *authority;
CoglPipelineAlphaFuncState *alpha_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
alpha_state = &authority->big_state->alpha_state;
if (alpha_state->alpha_func == alpha_func)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
alpha_state = &pipeline->big_state->alpha_state;
alpha_state->alpha_func = alpha_func;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_alpha_func_state_equal);
}
static void
_cogl_pipeline_set_alpha_test_function_reference (CoglPipeline *pipeline,
float alpha_reference)
{
CoglPipelineState state = COGL_PIPELINE_STATE_ALPHA_FUNC_REFERENCE;
CoglPipeline *authority;
CoglPipelineAlphaFuncState *alpha_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
alpha_state = &authority->big_state->alpha_state;
if (alpha_state->alpha_func_reference == alpha_reference)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
alpha_state = &pipeline->big_state->alpha_state;
alpha_state->alpha_func_reference = alpha_reference;
_cogl_pipeline_update_authority
(pipeline, authority, state,
_cogl_pipeline_alpha_func_reference_state_equal);
}
void
cogl_pipeline_set_alpha_test_function (CoglPipeline *pipeline,
CoglPipelineAlphaFunc alpha_func,
float alpha_reference)
{
_cogl_pipeline_set_alpha_test_function (pipeline, alpha_func);
_cogl_pipeline_set_alpha_test_function_reference (pipeline, alpha_reference);
}
CoglPipelineAlphaFunc
cogl_pipeline_get_alpha_test_function (CoglPipeline *pipeline)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), 0);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_ALPHA_FUNC);
return authority->big_state->alpha_state.alpha_func;
}
float
cogl_pipeline_get_alpha_test_reference (CoglPipeline *pipeline)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), 0.0f);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline,
COGL_PIPELINE_STATE_ALPHA_FUNC_REFERENCE);
return authority->big_state->alpha_state.alpha_func_reference;
}
GLenum
arg_to_gl_blend_factor (CoglBlendStringArgument *arg)
{
if (arg->source.is_zero)
return GL_ZERO;
if (arg->factor.is_one)
return GL_ONE;
else if (arg->factor.is_src_alpha_saturate)
return GL_SRC_ALPHA_SATURATE;
else if (arg->factor.source.info->type ==
COGL_BLEND_STRING_COLOR_SOURCE_SRC_COLOR)
{
if (arg->factor.source.mask != COGL_BLEND_STRING_CHANNEL_MASK_ALPHA)
{
if (arg->factor.source.one_minus)
return GL_ONE_MINUS_SRC_COLOR;
else
return GL_SRC_COLOR;
}
else
{
if (arg->factor.source.one_minus)
return GL_ONE_MINUS_SRC_ALPHA;
else
return GL_SRC_ALPHA;
}
}
else if (arg->factor.source.info->type ==
COGL_BLEND_STRING_COLOR_SOURCE_DST_COLOR)
{
if (arg->factor.source.mask != COGL_BLEND_STRING_CHANNEL_MASK_ALPHA)
{
if (arg->factor.source.one_minus)
return GL_ONE_MINUS_DST_COLOR;
else
return GL_DST_COLOR;
}
else
{
if (arg->factor.source.one_minus)
return GL_ONE_MINUS_DST_ALPHA;
else
return GL_DST_ALPHA;
}
}
#if defined(HAVE_COGL_GLES2) || defined(HAVE_COGL_GL)
else if (arg->factor.source.info->type ==
COGL_BLEND_STRING_COLOR_SOURCE_CONSTANT)
{
if (arg->factor.source.mask != COGL_BLEND_STRING_CHANNEL_MASK_ALPHA)
{
if (arg->factor.source.one_minus)
return GL_ONE_MINUS_CONSTANT_COLOR;
else
return GL_CONSTANT_COLOR;
}
else
{
if (arg->factor.source.one_minus)
return GL_ONE_MINUS_CONSTANT_ALPHA;
else
return GL_CONSTANT_ALPHA;
}
}
#endif
g_warning ("Unable to determine valid blend factor from blend string\n");
return GL_ONE;
}
void
setup_blend_state (CoglBlendStringStatement *statement,
GLenum *blend_equation,
GLint *blend_src_factor,
GLint *blend_dst_factor)
{
switch (statement->function->type)
{
case COGL_BLEND_STRING_FUNCTION_ADD:
*blend_equation = GL_FUNC_ADD;
break;
/* TODO - add more */
default:
g_warning ("Unsupported blend function given");
*blend_equation = GL_FUNC_ADD;
}
*blend_src_factor = arg_to_gl_blend_factor (&statement->args[0]);
*blend_dst_factor = arg_to_gl_blend_factor (&statement->args[1]);
}
gboolean
cogl_pipeline_set_blend (CoglPipeline *pipeline,
const char *blend_description,
GError **error)
{
CoglPipelineState state = COGL_PIPELINE_STATE_BLEND;
CoglPipeline *authority;
CoglBlendStringStatement statements[2];
CoglBlendStringStatement *rgb;
CoglBlendStringStatement *a;
GError *internal_error = NULL;
int count;
CoglPipelineBlendState *blend_state;
_COGL_GET_CONTEXT (ctx, FALSE);
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
count =
_cogl_blend_string_compile (blend_description,
COGL_BLEND_STRING_CONTEXT_BLENDING,
statements,
&internal_error);
if (!count)
{
if (error)
g_propagate_error (error, internal_error);
else
{
g_warning ("Cannot compile blend description: %s\n",
internal_error->message);
g_error_free (internal_error);
}
return FALSE;
}
if (count == 1)
rgb = a = statements;
else
{
rgb = &statements[0];
a = &statements[1];
}
authority =
_cogl_pipeline_get_authority (pipeline, state);
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
blend_state = &pipeline->big_state->blend_state;
#if defined (HAVE_COGL_GL) || defined (HAVE_COGL_GLES2)
if (ctx->driver != COGL_DRIVER_GLES1)
{
setup_blend_state (rgb,
&blend_state->blend_equation_rgb,
&blend_state->blend_src_factor_rgb,
&blend_state->blend_dst_factor_rgb);
setup_blend_state (a,
&blend_state->blend_equation_alpha,
&blend_state->blend_src_factor_alpha,
&blend_state->blend_dst_factor_alpha);
}
else
#endif
{
setup_blend_state (rgb,
NULL,
&blend_state->blend_src_factor_rgb,
&blend_state->blend_dst_factor_rgb);
}
/* If we are the current authority see if we can revert to one of our
* ancestors being the authority */
if (pipeline == authority &&
_cogl_pipeline_get_parent (authority) != NULL)
{
CoglPipeline *parent = _cogl_pipeline_get_parent (authority);
CoglPipeline *old_authority =
_cogl_pipeline_get_authority (parent, state);
if (_cogl_pipeline_blend_state_equal (authority, old_authority))
pipeline->differences &= ~state;
}
/* If we weren't previously the authority on this state then we need
* to extended our differences mask and so it's possible that some
* of our ancestry will now become redundant, so we aim to reparent
* ourselves if that's true... */
if (pipeline != authority)
{
pipeline->differences |= state;
_cogl_pipeline_prune_redundant_ancestry (pipeline);
}
_cogl_pipeline_update_blend_enable (pipeline, state);
return TRUE;
}
void
cogl_pipeline_set_blend_constant (CoglPipeline *pipeline,
const CoglColor *constant_color)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
if (ctx->driver == COGL_DRIVER_GLES1)
return;
#if defined(HAVE_COGL_GLES2) || defined(HAVE_COGL_GL)
{
CoglPipelineState state = COGL_PIPELINE_STATE_BLEND;
CoglPipeline *authority;
CoglPipelineBlendState *blend_state;
authority = _cogl_pipeline_get_authority (pipeline, state);
blend_state = &authority->big_state->blend_state;
if (cogl_color_equal (constant_color, &blend_state->blend_constant))
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
blend_state = &pipeline->big_state->blend_state;
blend_state->blend_constant = *constant_color;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_blend_state_equal);
_cogl_pipeline_update_blend_enable (pipeline, state);
}
#endif
}
CoglHandle
cogl_pipeline_get_user_program (CoglPipeline *pipeline)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), COGL_INVALID_HANDLE);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_USER_SHADER);
return authority->big_state->user_program;
}
/* XXX: for now we don't mind if the program has vertex shaders
* attached but if we ever make a similar API public we should only
* allow attaching of programs containing fragment shaders. Eventually
* we will have a CoglPipeline abstraction to also cover vertex
* processing.
*/
void
cogl_pipeline_set_user_program (CoglPipeline *pipeline,
CoglHandle program)
{
CoglPipelineState state = COGL_PIPELINE_STATE_USER_SHADER;
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
if (authority->big_state->user_program == program)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
if (program != COGL_INVALID_HANDLE)
{
_cogl_pipeline_set_fragend (pipeline, COGL_PIPELINE_FRAGEND_DEFAULT);
_cogl_pipeline_set_vertend (pipeline, COGL_PIPELINE_VERTEND_DEFAULT);
}
/* If we are the current authority see if we can revert to one of our
* ancestors being the authority */
if (pipeline == authority &&
_cogl_pipeline_get_parent (authority) != NULL)
{
CoglPipeline *parent = _cogl_pipeline_get_parent (authority);
CoglPipeline *old_authority =
_cogl_pipeline_get_authority (parent, state);
if (old_authority->big_state->user_program == program)
pipeline->differences &= ~state;
}
else if (pipeline != authority)
{
/* If we weren't previously the authority on this state then we
* need to extended our differences mask and so it's possible
* that some of our ancestry will now become redundant, so we
* aim to reparent ourselves if that's true... */
pipeline->differences |= state;
_cogl_pipeline_prune_redundant_ancestry (pipeline);
}
if (program != COGL_INVALID_HANDLE)
cogl_handle_ref (program);
if (authority == pipeline &&
pipeline->big_state->user_program != COGL_INVALID_HANDLE)
cogl_handle_unref (pipeline->big_state->user_program);
pipeline->big_state->user_program = program;
_cogl_pipeline_update_blend_enable (pipeline, state);
}
gboolean
cogl_pipeline_set_depth_state (CoglPipeline *pipeline,
const CoglDepthState *depth_state,
GError **error)
{
CoglPipelineState state = COGL_PIPELINE_STATE_DEPTH;
CoglPipeline *authority;
CoglDepthState *orig_state;
_COGL_GET_CONTEXT (ctx, FALSE);
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
_COGL_RETURN_VAL_IF_FAIL (depth_state->magic == COGL_DEPTH_STATE_MAGIC, FALSE);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
orig_state = &authority->big_state->depth_state;
if (orig_state->test_enabled == depth_state->test_enabled &&
orig_state->write_enabled == depth_state->write_enabled &&
orig_state->test_function == depth_state->test_function &&
orig_state->range_near == depth_state->range_near &&
orig_state->range_far == depth_state->range_far)
return TRUE;
if (ctx->driver == COGL_DRIVER_GLES1 &&
(depth_state->range_near != 0 ||
depth_state->range_far != 1))
{
g_set_error (error,
COGL_ERROR,
COGL_ERROR_UNSUPPORTED,
"glDepthRange not available on GLES 1");
return FALSE;
}
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
pipeline->big_state->depth_state = *depth_state;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_depth_state_equal);
return TRUE;
}
void
cogl_pipeline_get_depth_state (CoglPipeline *pipeline,
CoglDepthState *state)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_DEPTH);
*state = authority->big_state->depth_state;
}
CoglColorMask
cogl_pipeline_get_color_mask (CoglPipeline *pipeline)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), 0);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_LOGIC_OPS);
return authority->big_state->logic_ops_state.color_mask;
}
void
cogl_pipeline_set_color_mask (CoglPipeline *pipeline,
CoglColorMask color_mask)
{
CoglPipelineState state = COGL_PIPELINE_STATE_LOGIC_OPS;
CoglPipeline *authority;
CoglPipelineLogicOpsState *logic_ops_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
logic_ops_state = &authority->big_state->logic_ops_state;
if (logic_ops_state->color_mask == color_mask)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
logic_ops_state = &pipeline->big_state->logic_ops_state;
logic_ops_state->color_mask = color_mask;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_logic_ops_state_equal);
}
void
_cogl_pipeline_set_fog_state (CoglPipeline *pipeline,
const CoglPipelineFogState *fog_state)
{
CoglPipelineState state = COGL_PIPELINE_STATE_FOG;
CoglPipeline *authority;
CoglPipelineFogState *current_fog_state;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
current_fog_state = &authority->big_state->fog_state;
if (current_fog_state->enabled == fog_state->enabled &&
cogl_color_equal (&current_fog_state->color, &fog_state->color) &&
current_fog_state->mode == fog_state->mode &&
current_fog_state->density == fog_state->density &&
current_fog_state->z_near == fog_state->z_near &&
current_fog_state->z_far == fog_state->z_far)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
pipeline->big_state->fog_state = *fog_state;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_fog_state_equal);
}
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
void
pipeline: Make the backface culling experimental public This adds two new experimental public functions to replace the old internal _cogl_pipeline_set_cull_face_state function: void cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline, CoglPipelineCullFaceMode cull_face_mode); void cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline, CoglWinding front_winding); There are also the corresponding getters. https://bugzilla.gnome.org/show_bug.cgi?id=663628 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-08 08:58:33 -05:00
cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline,
CoglPipelineCullFaceMode cull_face_mode)
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
{
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
CoglPipeline *authority;
pipeline: Make the backface culling experimental public This adds two new experimental public functions to replace the old internal _cogl_pipeline_set_cull_face_state function: void cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline, CoglPipelineCullFaceMode cull_face_mode); void cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline, CoglWinding front_winding); There are also the corresponding getters. https://bugzilla.gnome.org/show_bug.cgi?id=663628 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-08 08:58:33 -05:00
CoglPipelineCullFaceState *cull_face_state;
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
pipeline: Make the backface culling experimental public This adds two new experimental public functions to replace the old internal _cogl_pipeline_set_cull_face_state function: void cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline, CoglPipelineCullFaceMode cull_face_mode); void cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline, CoglWinding front_winding); There are also the corresponding getters. https://bugzilla.gnome.org/show_bug.cgi?id=663628 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-08 08:58:33 -05:00
cull_face_state = &authority->big_state->cull_face_state;
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
pipeline: Make the backface culling experimental public This adds two new experimental public functions to replace the old internal _cogl_pipeline_set_cull_face_state function: void cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline, CoglPipelineCullFaceMode cull_face_mode); void cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline, CoglWinding front_winding); There are also the corresponding getters. https://bugzilla.gnome.org/show_bug.cgi?id=663628 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-08 08:58:33 -05:00
if (cull_face_state->mode == cull_face_mode)
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
pipeline: Make the backface culling experimental public This adds two new experimental public functions to replace the old internal _cogl_pipeline_set_cull_face_state function: void cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline, CoglPipelineCullFaceMode cull_face_mode); void cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline, CoglWinding front_winding); There are also the corresponding getters. https://bugzilla.gnome.org/show_bug.cgi?id=663628 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-08 08:58:33 -05:00
pipeline->big_state->cull_face_state.mode = cull_face_mode;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_cull_face_state_equal);
}
void
cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline,
CoglWinding front_winding)
{
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
CoglPipeline *authority;
CoglPipelineCullFaceState *cull_face_state;
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
authority = _cogl_pipeline_get_authority (pipeline, state);
cull_face_state = &authority->big_state->cull_face_state;
if (cull_face_state->front_winding == front_winding)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
pipeline->big_state->cull_face_state.front_winding = front_winding;
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_cull_face_state_equal);
}
CoglPipelineCullFaceMode
pipeline: Make the backface culling experimental public This adds two new experimental public functions to replace the old internal _cogl_pipeline_set_cull_face_state function: void cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline, CoglPipelineCullFaceMode cull_face_mode); void cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline, CoglWinding front_winding); There are also the corresponding getters. https://bugzilla.gnome.org/show_bug.cgi?id=663628 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-08 08:58:33 -05:00
cogl_pipeline_get_cull_face_mode (CoglPipeline *pipeline)
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
{
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline),
COGL_PIPELINE_CULL_FACE_MODE_NONE);
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
return authority->big_state->cull_face_state.mode;
}
pipeline: Make the backface culling experimental public This adds two new experimental public functions to replace the old internal _cogl_pipeline_set_cull_face_state function: void cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline, CoglPipelineCullFaceMode cull_face_mode); void cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline, CoglWinding front_winding); There are also the corresponding getters. https://bugzilla.gnome.org/show_bug.cgi?id=663628 Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-08 08:58:33 -05:00
CoglWinding
cogl_pipeline_get_front_face_winding (CoglPipeline *pipeline)
{
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
CoglPipeline *authority;
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline),
COGL_PIPELINE_CULL_FACE_MODE_NONE);
authority = _cogl_pipeline_get_authority (pipeline, state);
return authority->big_state->cull_face_state.front_winding;
}
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
float
cogl_pipeline_get_point_size (CoglPipeline *pipeline)
{
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_POINT_SIZE);
return authority->big_state->point_size;
}
void
cogl_pipeline_set_point_size (CoglPipeline *pipeline,
float point_size)
{
CoglPipelineState state = COGL_PIPELINE_STATE_POINT_SIZE;
CoglPipeline *authority;
Start to reduce dependence on glib Since we've had several developers from admirable projects say they would like to use Cogl but would really prefer not to pull in gobject,gmodule and glib as extra dependencies we are investigating if we can get to the point where glib is only an optional dependency. Actually we feel like we only make minimal use of glib anyway, so it may well be quite straightforward to achieve this. This adds a --disable-glib configure option that can be used to disable features that depend on glib. Actually --disable-glib doesn't strictly disable glib at this point because it's more helpful if cogl continues to build as we make incremental progress towards this. The first use of glib that this patch tackles is the use of g_return_val_if_fail and g_return_if_fail which have been replaced with equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-10-13 17:34:30 -04:00
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
authority = _cogl_pipeline_get_authority (pipeline, state);
if (authority->big_state->point_size == point_size)
return;
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
pipeline->big_state->point_size = point_size;
_cogl_pipeline_update_authority (pipeline, authority, state,
_cogl_pipeline_point_size_equal);
}
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
static CoglBoxedValue *
_cogl_pipeline_override_uniform (CoglPipeline *pipeline,
int location)
{
CoglPipelineState state = COGL_PIPELINE_STATE_UNIFORMS;
CoglPipelineUniformsState *uniforms_state;
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
int override_index;
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
_COGL_GET_CONTEXT (ctx, NULL);
g_return_val_if_fail (cogl_is_pipeline (pipeline), NULL);
g_return_val_if_fail (location >= 0, NULL);
g_return_val_if_fail (location < ctx->n_uniform_names, NULL);
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
uniforms_state = &pipeline->big_state->uniforms_state;
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
/* Count the number of bits that are set below this location. That
should give us the position where our new value should lie */
override_index = _cogl_bitmask_popcount_upto (&uniforms_state->override_mask,
location);
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
_cogl_bitmask_set (&uniforms_state->changed_mask, location, TRUE);
/* If this pipeline already has an override for this value then we
can just use it directly */
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
if (_cogl_bitmask_get (&uniforms_state->override_mask, location))
return uniforms_state->override_values + override_index;
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
/* We need to create a new override value in the right position
within the array. This is pretty inefficient but the hope is that
it will be much more common to modify an existing uniform rather
than modify a new one so it is more important to optimise the
former case. */
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
if (uniforms_state->override_values == NULL)
{
g_assert (override_index == 0);
uniforms_state->override_values = g_new (CoglBoxedValue, 1);
}
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
else
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
{
/* We need to grow the array and copy in the old values */
CoglBoxedValue *old_values = uniforms_state->override_values;
int old_size = _cogl_bitmask_popcount (&uniforms_state->override_mask);
uniforms_state->override_values = g_new (CoglBoxedValue, old_size + 1);
/* Copy in the old values leaving a gap for the new value */
memcpy (uniforms_state->override_values,
old_values,
sizeof (CoglBoxedValue) * override_index);
memcpy (uniforms_state->override_values,
old_values + override_index + 1,
sizeof (CoglBoxedValue) * (old_size - override_index));
g_free (old_values);
}
_cogl_boxed_value_init (uniforms_state->override_values + override_index);
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
_cogl_bitmask_set (&uniforms_state->override_mask, location, TRUE);
cogl-pipeline: Store the uniform overrides in an array instead of list Previously the uniform overrides were stored in a linked list. Now they are stored in a g_malloc'd array. The values are still tightly packed so that there is only a value for each uniform that has a corresponding bit in override_mask. The allocated size of the array always exactly corresponds to the number of bits set in the override_mask. This means that when a new uniform value is set on a pipeline it will have to grow the array and copy the old values in. The assumption is that setting a value for a new uniform is much less frequent then setting a value for an existing uniform so it makes more sense to optimise the latter. The advantage of using an array is that we can quickly jump to right boxed value given a uniform location by doing a population count in the bitmask for the number of bits less than the given uniform location. This can be done in O(1) time whereas the old approach using a list would scale by the number of bits set. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-04 13:56:44 -04:00
return uniforms_state->override_values + override_index;
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
}
void
cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline,
int uniform_location,
float value)
{
CoglBoxedValue *boxed_value;
boxed_value = _cogl_pipeline_override_uniform (pipeline, uniform_location);
_cogl_boxed_value_set_1f (boxed_value, value);
}
void
cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline,
int uniform_location,
int value)
{
CoglBoxedValue *boxed_value;
boxed_value = _cogl_pipeline_override_uniform (pipeline, uniform_location);
_cogl_boxed_value_set_1i (boxed_value, value);
}
void
cogl_pipeline_set_uniform_float (CoglPipeline *pipeline,
int uniform_location,
int n_components,
int count,
const float *value)
{
CoglBoxedValue *boxed_value;
boxed_value = _cogl_pipeline_override_uniform (pipeline, uniform_location);
_cogl_boxed_value_set_float (boxed_value, n_components, count, value);
}
void
cogl_pipeline_set_uniform_int (CoglPipeline *pipeline,
int uniform_location,
int n_components,
int count,
const int *value)
{
CoglBoxedValue *boxed_value;
boxed_value = _cogl_pipeline_override_uniform (pipeline, uniform_location);
_cogl_boxed_value_set_int (boxed_value, n_components, count, value);
}
void
cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline,
int uniform_location,
int dimensions,
int count,
gboolean transpose,
const float *value)
{
CoglBoxedValue *boxed_value;
boxed_value = _cogl_pipeline_override_uniform (pipeline, uniform_location);
_cogl_boxed_value_set_matrix (boxed_value,
dimensions,
count,
transpose,
value);
}
pipeline: split out all core state apis Since cogl-pipeline.c has become very unwieldy this make a start at trying to shape this code back into a manageable state. This patche moves all the API relating to core pipeline state into cogl-pipeline-state.c. This doesn't move code relating to layer state out nor does it move any of the code supporting the core design of CoglPipeline itself. This change alone factors out 2k lines of code from cogl-pipeline.c which is obviously a good start. The next step will be to factor out the layer state and then probably look at breaking all of this state code down into state-groups. Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-09-07 18:44:37 -04:00
void
_cogl_pipeline_hash_color_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
state->hash = _cogl_util_one_at_a_time_hash (state->hash, &authority->color,
_COGL_COLOR_DATA_SIZE);
}
void
_cogl_pipeline_hash_blend_enable_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
guint8 blend_enable = authority->blend_enable;
state->hash = _cogl_util_one_at_a_time_hash (state->hash, &blend_enable, 1);
}
void
_cogl_pipeline_hash_lighting_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglPipelineLightingState *lighting_state =
&authority->big_state->lighting_state;
state->hash =
_cogl_util_one_at_a_time_hash (state->hash, lighting_state,
sizeof (CoglPipelineLightingState));
}
void
_cogl_pipeline_hash_alpha_func_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglPipelineAlphaFuncState *alpha_state = &authority->big_state->alpha_state;
state->hash =
_cogl_util_one_at_a_time_hash (state->hash, &alpha_state->alpha_func,
sizeof (alpha_state->alpha_func));
}
void
_cogl_pipeline_hash_alpha_func_reference_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglPipelineAlphaFuncState *alpha_state = &authority->big_state->alpha_state;
float ref = alpha_state->alpha_func_reference;
state->hash =
_cogl_util_one_at_a_time_hash (state->hash, &ref, sizeof (float));
}
void
_cogl_pipeline_hash_blend_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglPipelineBlendState *blend_state = &authority->big_state->blend_state;
unsigned int hash;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
if (!authority->real_blend_enable)
return;
hash = state->hash;
#if defined(HAVE_COGL_GLES2) || defined(HAVE_COGL_GL)
if (ctx->driver != COGL_DRIVER_GLES1)
{
hash =
_cogl_util_one_at_a_time_hash (hash, &blend_state->blend_equation_rgb,
sizeof (blend_state->blend_equation_rgb));
hash =
_cogl_util_one_at_a_time_hash (hash, &blend_state->blend_equation_alpha,
sizeof (blend_state->blend_equation_alpha));
hash =
_cogl_util_one_at_a_time_hash (hash, &blend_state->blend_src_factor_alpha,
sizeof (blend_state->blend_src_factor_alpha));
hash =
_cogl_util_one_at_a_time_hash (hash, &blend_state->blend_dst_factor_alpha,
sizeof (blend_state->blend_dst_factor_alpha));
if (blend_state->blend_src_factor_rgb == GL_ONE_MINUS_CONSTANT_COLOR ||
blend_state->blend_src_factor_rgb == GL_CONSTANT_COLOR ||
blend_state->blend_dst_factor_rgb == GL_ONE_MINUS_CONSTANT_COLOR ||
blend_state->blend_dst_factor_rgb == GL_CONSTANT_COLOR)
{
hash =
_cogl_util_one_at_a_time_hash (hash, &blend_state->blend_constant,
sizeof (blend_state->blend_constant));
}
}
#endif
hash =
_cogl_util_one_at_a_time_hash (hash, &blend_state->blend_src_factor_rgb,
sizeof (blend_state->blend_src_factor_rgb));
hash =
_cogl_util_one_at_a_time_hash (hash, &blend_state->blend_dst_factor_rgb,
sizeof (blend_state->blend_dst_factor_rgb));
state->hash = hash;
}
void
_cogl_pipeline_hash_user_shader_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglHandle user_program = authority->big_state->user_program;
state->hash = _cogl_util_one_at_a_time_hash (state->hash, &user_program,
sizeof (user_program));
}
void
_cogl_pipeline_hash_depth_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglDepthState *depth_state = &authority->big_state->depth_state;
unsigned int hash = state->hash;
if (depth_state->test_enabled)
{
guint8 enabled = depth_state->test_enabled;
CoglDepthTestFunction function = depth_state->test_function;
hash = _cogl_util_one_at_a_time_hash (hash, &enabled, sizeof (enabled));
hash = _cogl_util_one_at_a_time_hash (hash, &function, sizeof (function));
}
if (depth_state->write_enabled)
{
guint8 enabled = depth_state->write_enabled;
float near_val = depth_state->range_near;
float far_val = depth_state->range_far;
hash = _cogl_util_one_at_a_time_hash (hash, &enabled, sizeof (enabled));
hash = _cogl_util_one_at_a_time_hash (hash, &near_val, sizeof (near_val));
hash = _cogl_util_one_at_a_time_hash (hash, &far_val, sizeof (far_val));
}
state->hash = hash;
}
void
_cogl_pipeline_hash_fog_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglPipelineFogState *fog_state = &authority->big_state->fog_state;
unsigned long hash = state->hash;
if (!fog_state->enabled)
hash = _cogl_util_one_at_a_time_hash (hash, &fog_state->enabled,
sizeof (fog_state->enabled));
else
hash = _cogl_util_one_at_a_time_hash (hash, &fog_state,
sizeof (CoglPipelineFogState));
state->hash = hash;
}
void
_cogl_pipeline_hash_point_size_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
float point_size = authority->big_state->point_size;
state->hash = _cogl_util_one_at_a_time_hash (state->hash, &point_size,
sizeof (point_size));
}
void
_cogl_pipeline_hash_logic_ops_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglPipelineLogicOpsState *logic_ops_state = &authority->big_state->logic_ops_state;
state->hash = _cogl_util_one_at_a_time_hash (state->hash, &logic_ops_state->color_mask,
sizeof (CoglColorMask));
}
Make backface culling be part of the legacy state This adds an internal function to set the backface culling state on a pipeline. This includes properties to set the culling mode (front, back or both) and also to set which face is considered the front (COGL_WINDING_CLOCKWISE or COGL_WINDING_COUNTER_CLOCKWISE). The actual front face flushed to GL depends on whether we are rendering to an offscreen buffer or not. This means that when changing between on- and off- screen framebuffers it now checks whether the last flushed pipeline has backface culling enabled and forces a reflush of the cull face state if so. The backface culling is now set on a pipeline as part of the legacy state. This is important because some code in Cogl assumes it can flush a temporary pipeline to revert to a known state, but previously this wouldn't disable backface culling so things such as flushing the clip stack could get confused. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-09-15 06:25:39 -04:00
void
_cogl_pipeline_hash_cull_face_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
CoglPipelineCullFaceState *cull_face_state
= &authority->big_state->cull_face_state;
/* The cull face state is considered equal if two pipelines are both
set to no culling. If the front winding property is ever used for
anything else or the hashing is used not just for drawing then
this would have to change */
if (cull_face_state->mode == COGL_PIPELINE_CULL_FACE_MODE_NONE)
state->hash =
_cogl_util_one_at_a_time_hash (state->hash,
&cull_face_state->mode,
sizeof (CoglPipelineCullFaceMode));
else
state->hash =
_cogl_util_one_at_a_time_hash (state->hash,
cull_face_state,
sizeof (CoglPipelineCullFaceState));
}
cogl-pipeline: Add support for setting uniform values This adds the following new public experimental functions to set uniform values on a CoglPipeline: void cogl_pipeline_set_uniform_1f (CoglPipeline *pipeline, int uniform_location, float value); void cogl_pipeline_set_uniform_1i (CoglPipeline *pipeline, int uniform_location, int value); void cogl_pipeline_set_uniform_float (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const float *value); void cogl_pipeline_set_uniform_int (CoglPipeline *pipeline, int uniform_location, int n_components, int count, const int *value); void cogl_pipeline_set_uniform_matrix (CoglPipeline *pipeline, int uniform_location, int dimensions, int count, gboolean transpose, const float *value); These are similar to the old functions used to set uniforms on a CoglProgram. To get a value to pass in as the uniform_location there is also: int cogl_pipeline_get_uniform_location (CoglPipeline *pipeline, const char *uniform_name); Conceptually the uniform locations are tied to the pipeline so that whenever setting a value for a new pipeline the application is expected to call this function. However in practice the uniform locations are global to the CoglContext. The names are stored in a linked list where the position in the list is the uniform location. The global indices are used so that each pipeline can store a mask of which uniforms it overrides. That way it is quicker to detect which uniforms are different from the last pipeline that used the same CoglProgramState so it can avoid flushing uniforms that haven't changed. Currently the values are not actually compared which means that it will only avoid flushing a uniform if there is a common ancestor that sets the value (or if the same pipeline is being flushed again - in which case the pipeline and its common ancestor are the same thing). The uniform values are stored in the big state of the pipeline as a sparse linked list. A bitmask stores which values have been overridden and only overridden values are stored in the linked list. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-03 13:20:43 -04:00
void
_cogl_pipeline_hash_uniforms_state (CoglPipeline *authority,
CoglPipelineHashState *state)
{
/* This isn't used anywhere yet because the uniform state doesn't
affect program generation. It's quite a hassle to implement so
let's just leave it until something actually needs it */
g_warn_if_reached ();
}
void
_cogl_pipeline_compare_uniform_differences (unsigned long *differences,
CoglPipeline *pipeline0,
CoglPipeline *pipeline1)
{
GSList *head0 = NULL;
GSList *head1 = NULL;
CoglPipeline *node0;
CoglPipeline *node1;
int len0 = 0;
int len1 = 0;
int count;
GSList *common_ancestor0;
GSList *common_ancestor1;
/* This algorithm is copied from
_cogl_pipeline_compare_differences(). It might be nice to share
the code more */
for (node0 = pipeline0; node0; node0 = _cogl_pipeline_get_parent (node0))
{
GSList *link = alloca (sizeof (GSList));
link->next = head0;
link->data = node0;
head0 = link;
len0++;
}
for (node1 = pipeline1; node1; node1 = _cogl_pipeline_get_parent (node1))
{
GSList *link = alloca (sizeof (GSList));
link->next = head1;
link->data = node1;
head1 = link;
len1++;
}
/* NB: There's no point looking at the head entries since we know both
* pipelines must have the same default pipeline as their root node. */
common_ancestor0 = head0;
common_ancestor1 = head1;
head0 = head0->next;
head1 = head1->next;
count = MIN (len0, len1) - 1;
while (count--)
{
if (head0->data != head1->data)
break;
common_ancestor0 = head0;
common_ancestor1 = head1;
head0 = head0->next;
head1 = head1->next;
}
for (head0 = common_ancestor0->next; head0; head0 = head0->next)
{
node0 = head0->data;
if ((node0->differences & COGL_PIPELINE_STATE_UNIFORMS))
{
const CoglPipelineUniformsState *uniforms_state =
&node0->big_state->uniforms_state;
_cogl_bitmask_set_flags (&uniforms_state->override_mask,
differences);
}
}
for (head1 = common_ancestor1->next; head1; head1 = head1->next)
{
node1 = head1->data;
if ((node1->differences & COGL_PIPELINE_STATE_UNIFORMS))
{
const CoglPipelineUniformsState *uniforms_state =
&node1->big_state->uniforms_state;
_cogl_bitmask_set_flags (&uniforms_state->override_mask,
differences);
}
}
}
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