mirror of
https://github.com/brl/mutter.git
synced 2024-12-27 13:22:15 +00:00
54735dec84
The coding style has for a long time said to avoid using redundant glib
data types such as gint or gchar etc because we feel that they make the
code look unnecessarily foreign to developers coming from outside of the
Gnome developer community.
Note: When we tried to find the historical rationale for the types we
just found that they were apparently only added for consistent syntax
highlighting which didn't seem that compelling.
Up until now we have been continuing to use some of the platform
specific type such as gint{8,16,32,64} and gsize but this patch switches
us over to using the standard c99 equivalents instead so we can further
ensure that our code looks familiar to the widest range of C developers
who might potentially contribute to Cogl.
So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this
switches all Cogl code to instead use the int{8,16,32,64}_t and
uint{8,16,32,64}_t c99 types instead.
Instead of gsize we now use size_t
For now we are not going to use the c99 _Bool type and instead we have
introduced a new CoglBool type to use instead of gboolean.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
2003 lines
64 KiB
C
2003 lines
64 KiB
C
/*
|
|
* 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"
|
|
#include "cogl-pipeline-state-private.h"
|
|
#include "cogl-snippet-private.h"
|
|
|
|
#include "string.h"
|
|
|
|
#ifndef GL_FUNC_ADD
|
|
#define GL_FUNC_ADD 0x8006
|
|
#endif
|
|
|
|
CoglPipeline *
|
|
_cogl_pipeline_get_user_program (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), NULL);
|
|
|
|
authority =
|
|
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_USER_SHADER);
|
|
|
|
return authority->big_state->user_program;
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_color_equal (CoglPipeline *authority0,
|
|
CoglPipeline *authority1)
|
|
{
|
|
return cogl_color_equal (&authority0->color, &authority1->color);
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_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);
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_point_size_equal (CoglPipeline *authority0,
|
|
CoglPipeline *authority1)
|
|
{
|
|
return authority0->big_state->point_size == authority1->big_state->point_size;
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_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);
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_user_shader_equal (CoglPipeline *authority0,
|
|
CoglPipeline *authority1)
|
|
{
|
|
return (authority0->big_state->user_program ==
|
|
authority1->big_state->user_program);
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
const CoglBoxedValue **dst_values;
|
|
const CoglBoxedValue *src_values;
|
|
int override_count;
|
|
} GetUniformsClosure;
|
|
|
|
static CoglBool
|
|
get_uniforms_cb (int uniform_num, void *user_data)
|
|
{
|
|
GetUniformsClosure *data = user_data;
|
|
|
|
if (data->dst_values[uniform_num] == NULL)
|
|
data->dst_values[uniform_num] = data->src_values + data->override_count;
|
|
|
|
data->override_count++;
|
|
|
|
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);
|
|
|
|
data.dst_values = values;
|
|
|
|
do
|
|
{
|
|
if ((pipeline->differences & COGL_PIPELINE_STATE_UNIFORMS))
|
|
{
|
|
const CoglPipelineUniformsState *uniforms_state =
|
|
&pipeline->big_state->uniforms_state;
|
|
|
|
data.override_count = 0;
|
|
data.src_values = uniforms_state->override_values;
|
|
|
|
_cogl_bitmask_foreach (&uniforms_state->override_mask,
|
|
get_uniforms_cb,
|
|
&data);
|
|
}
|
|
pipeline = _cogl_pipeline_get_parent (pipeline);
|
|
}
|
|
while (pipeline);
|
|
}
|
|
|
|
CoglBool
|
|
_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];
|
|
|
|
if (value0 == NULL)
|
|
{
|
|
if (value1 != NULL && value1->type != COGL_BOXED_NONE)
|
|
return FALSE;
|
|
}
|
|
else if (value1 == NULL)
|
|
{
|
|
if (value0 != NULL && value0->type != COGL_BOXED_NONE)
|
|
return FALSE;
|
|
}
|
|
else if (!_cogl_boxed_value_equal (value0, value1))
|
|
return FALSE;
|
|
}
|
|
COGL_FLAGS_FOREACH_END;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_vertex_snippets_state_equal (CoglPipeline *authority0,
|
|
CoglPipeline *authority1)
|
|
{
|
|
return _cogl_pipeline_snippet_list_equal (&authority0->big_state->
|
|
vertex_snippets,
|
|
&authority1->big_state->
|
|
vertex_snippets);
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_fragment_snippets_state_equal (CoglPipeline *authority0,
|
|
CoglPipeline *authority1)
|
|
{
|
|
return _cogl_pipeline_snippet_list_equal (&authority0->big_state->
|
|
fragment_snippets,
|
|
&authority1->big_state->
|
|
fragment_snippets);
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_get_color (CoglPipeline *pipeline,
|
|
CoglColor *color)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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,
|
|
uint8_t *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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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,
|
|
uint8_t red,
|
|
uint8_t green,
|
|
uint8_t blue,
|
|
uint8_t 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;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
authority =
|
|
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_BLEND_ENABLE);
|
|
return authority->blend_enable;
|
|
}
|
|
|
|
static CoglBool
|
|
_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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
_COGL_RETURN_IF_FAIL (enable > 1 &&
|
|
"don't pass TRUE or FALSE to _set_blend_enabled!");
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), 0);
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), 0);
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), 0.0f);
|
|
|
|
authority =
|
|
_cogl_pipeline_get_authority (pipeline,
|
|
COGL_PIPELINE_STATE_ALPHA_FUNC_REFERENCE);
|
|
|
|
return authority->big_state->alpha_state.alpha_func_reference;
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
|
|
static 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]);
|
|
}
|
|
|
|
CoglBool
|
|
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);
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
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);
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), COGL_INVALID_HANDLE);
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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);
|
|
}
|
|
|
|
CoglBool
|
|
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);
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
_COGL_RETURN_VAL_IF_FAIL (depth_state->magic == COGL_DEPTH_STATE_MAGIC, FALSE);
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), 0);
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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 (¤t_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);
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline,
|
|
CoglPipelineCullFaceMode cull_face_mode)
|
|
{
|
|
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->mode == cull_face_mode)
|
|
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.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;
|
|
|
|
_cogl_pipeline_update_authority (pipeline, authority, state,
|
|
_cogl_pipeline_cull_face_state_equal);
|
|
}
|
|
|
|
CoglPipelineCullFaceMode
|
|
cogl_pipeline_get_cull_face_mode (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.mode;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
float
|
|
cogl_pipeline_get_point_size (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
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;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
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);
|
|
}
|
|
|
|
static CoglBoxedValue *
|
|
_cogl_pipeline_override_uniform (CoglPipeline *pipeline,
|
|
int location)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_UNIFORMS;
|
|
CoglPipelineUniformsState *uniforms_state;
|
|
int override_index;
|
|
|
|
_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;
|
|
|
|
/* 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_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 */
|
|
if (_cogl_bitmask_get (&uniforms_state->override_mask, location))
|
|
return uniforms_state->override_values + override_index;
|
|
|
|
/* 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. */
|
|
|
|
if (uniforms_state->override_values == NULL)
|
|
{
|
|
g_assert (override_index == 0);
|
|
uniforms_state->override_values = g_new (CoglBoxedValue, 1);
|
|
}
|
|
else
|
|
{
|
|
/* 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 + override_index + 1,
|
|
old_values + override_index,
|
|
sizeof (CoglBoxedValue) * (old_size - override_index));
|
|
|
|
g_free (old_values);
|
|
}
|
|
|
|
_cogl_boxed_value_init (uniforms_state->override_values + override_index);
|
|
|
|
_cogl_bitmask_set (&uniforms_state->override_mask, location, TRUE);
|
|
|
|
return uniforms_state->override_values + override_index;
|
|
}
|
|
|
|
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,
|
|
CoglBool 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);
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_add_vertex_snippet (CoglPipeline *pipeline,
|
|
CoglSnippet *snippet)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_VERTEX_SNIPPETS;
|
|
|
|
/* - 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);
|
|
|
|
_cogl_pipeline_snippet_list_add (&pipeline->big_state->vertex_snippets,
|
|
snippet);
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_add_fragment_snippet (CoglPipeline *pipeline,
|
|
CoglSnippet *snippet)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_FRAGMENT_SNIPPETS;
|
|
|
|
/* - 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);
|
|
|
|
_cogl_pipeline_snippet_list_add (&pipeline->big_state->fragment_snippets,
|
|
snippet);
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_add_snippet (CoglPipeline *pipeline,
|
|
CoglSnippet *snippet)
|
|
{
|
|
g_return_if_fail (cogl_is_pipeline (pipeline));
|
|
g_return_if_fail (cogl_is_snippet (snippet));
|
|
g_return_if_fail (snippet->hook < COGL_SNIPPET_FIRST_LAYER_HOOK);
|
|
|
|
if (snippet->hook < COGL_SNIPPET_FIRST_PIPELINE_FRAGMENT_HOOK)
|
|
_cogl_pipeline_add_vertex_snippet (pipeline, snippet);
|
|
else
|
|
_cogl_pipeline_add_fragment_snippet (pipeline, snippet);
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_has_non_layer_vertex_snippets (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority =
|
|
_cogl_pipeline_get_authority (pipeline,
|
|
COGL_PIPELINE_STATE_VERTEX_SNIPPETS);
|
|
|
|
return !COGL_LIST_EMPTY (&authority->big_state->vertex_snippets);
|
|
}
|
|
|
|
static CoglBool
|
|
check_layer_has_vertex_snippet (CoglPipelineLayer *layer,
|
|
void *user_data)
|
|
{
|
|
unsigned long state = COGL_PIPELINE_LAYER_STATE_VERTEX_SNIPPETS;
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer, state);
|
|
CoglBool *found_vertex_snippet = user_data;
|
|
|
|
if (!COGL_LIST_EMPTY (&authority->big_state->vertex_snippets))
|
|
{
|
|
*found_vertex_snippet = TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_has_vertex_snippets (CoglPipeline *pipeline)
|
|
{
|
|
CoglBool found_vertex_snippet = FALSE;
|
|
|
|
if (_cogl_pipeline_has_non_layer_vertex_snippets (pipeline))
|
|
return TRUE;
|
|
|
|
_cogl_pipeline_foreach_layer_internal (pipeline,
|
|
check_layer_has_vertex_snippet,
|
|
&found_vertex_snippet);
|
|
|
|
return found_vertex_snippet;
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_has_non_layer_fragment_snippets (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority =
|
|
_cogl_pipeline_get_authority (pipeline,
|
|
COGL_PIPELINE_STATE_FRAGMENT_SNIPPETS);
|
|
|
|
return !COGL_LIST_EMPTY (&authority->big_state->fragment_snippets);
|
|
}
|
|
|
|
static CoglBool
|
|
check_layer_has_fragment_snippet (CoglPipelineLayer *layer,
|
|
void *user_data)
|
|
{
|
|
unsigned long state = COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS;
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer, state);
|
|
CoglBool *found_fragment_snippet = user_data;
|
|
|
|
if (!COGL_LIST_EMPTY (&authority->big_state->fragment_snippets))
|
|
{
|
|
*found_fragment_snippet = TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_has_fragment_snippets (CoglPipeline *pipeline)
|
|
{
|
|
CoglBool found_fragment_snippet = FALSE;
|
|
|
|
if (_cogl_pipeline_has_non_layer_fragment_snippets (pipeline))
|
|
return TRUE;
|
|
|
|
_cogl_pipeline_foreach_layer_internal (pipeline,
|
|
check_layer_has_fragment_snippet,
|
|
&found_fragment_snippet);
|
|
|
|
return found_fragment_snippet;
|
|
}
|
|
|
|
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)
|
|
{
|
|
uint8_t 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)
|
|
{
|
|
uint8_t 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)
|
|
{
|
|
uint8_t 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));
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_hash_vertex_snippets_state (CoglPipeline *authority,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
_cogl_pipeline_snippet_list_hash (&authority->big_state->vertex_snippets,
|
|
&state->hash);
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_hash_fragment_snippets_state (CoglPipeline *authority,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
_cogl_pipeline_snippet_list_hash (&authority->big_state->fragment_snippets,
|
|
&state->hash);
|
|
}
|