mirror of
https://github.com/brl/mutter.git
synced 2024-11-26 10:00:45 -05:00
b72f255c0a
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>
1458 lines
47 KiB
C
1458 lines
47 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-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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_user_shader_equal (CoglPipeline *authority0,
|
|
CoglPipeline *authority1)
|
|
{
|
|
return (authority0->big_state->user_program ==
|
|
authority1->big_state->user_program);
|
|
}
|
|
|
|
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,
|
|
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;
|
|
|
|
_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,
|
|
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;
|
|
|
|
_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;
|
|
}
|
|
|
|
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;
|
|
|
|
_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;
|
|
}
|
|
|
|
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);
|
|
|
|
_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);
|
|
}
|
|
|
|
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);
|
|
|
|
_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_state (CoglPipeline *pipeline,
|
|
const CoglPipelineCullFaceState *
|
|
cull_face_state)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
|
|
CoglPipeline *authority;
|
|
CoglPipelineCullFaceState *current_cull_face_state;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
authority = _cogl_pipeline_get_authority (pipeline, state);
|
|
|
|
current_cull_face_state = &authority->big_state->cull_face_state;
|
|
|
|
if (current_cull_face_state->mode == cull_face_state->mode &&
|
|
current_cull_face_state->front_winding == cull_face_state->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 = *cull_face_state;
|
|
|
|
_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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
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));
|
|
}
|