mirror of
https://github.com/brl/mutter.git
synced 2024-11-29 03:20:46 -05:00
769a02b630
This was introduced when the Cogl maintainers tried to move away from GLib. Since we always require it, we can just use `g_return_val_if_fail()` immediately. https://gitlab.gnome.org/GNOME/mutter/merge_requests/629
2097 lines
67 KiB
C
2097 lines
67 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2008,2009,2010 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#include "cogl-config.h"
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#include "cogl-context-private.h"
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#include "cogl-color-private.h"
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#include "cogl-blend-string.h"
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#include "cogl-util.h"
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#include "cogl-depth-state-private.h"
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#include "cogl-pipeline-state-private.h"
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#include "cogl-snippet-private.h"
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#include "cogl-error-private.h"
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#include <test-fixtures/test-unit.h>
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#include "string.h"
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#ifndef GL_FUNC_ADD
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#define GL_FUNC_ADD 0x8006
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#endif
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CoglPipeline *
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_cogl_pipeline_get_user_program (CoglPipeline *pipeline)
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{
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CoglPipeline *authority;
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g_return_val_if_fail (cogl_is_pipeline (pipeline), NULL);
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authority =
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_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_USER_SHADER);
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return authority->big_state->user_program;
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}
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gboolean
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_cogl_pipeline_color_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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return cogl_color_equal (&authority0->color, &authority1->color);
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}
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gboolean
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_cogl_pipeline_lighting_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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CoglPipelineLightingState *state0 = &authority0->big_state->lighting_state;
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CoglPipelineLightingState *state1 = &authority1->big_state->lighting_state;
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if (memcmp (state0->ambient, state1->ambient, sizeof (float) * 4) != 0)
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return FALSE;
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if (memcmp (state0->diffuse, state1->diffuse, sizeof (float) * 4) != 0)
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return FALSE;
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if (memcmp (state0->specular, state1->specular, sizeof (float) * 4) != 0)
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return FALSE;
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if (memcmp (state0->emission, state1->emission, sizeof (float) * 4) != 0)
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return FALSE;
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if (state0->shininess != state1->shininess)
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return FALSE;
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return TRUE;
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}
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gboolean
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_cogl_pipeline_alpha_func_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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CoglPipelineAlphaFuncState *alpha_state0 =
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&authority0->big_state->alpha_state;
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CoglPipelineAlphaFuncState *alpha_state1 =
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&authority1->big_state->alpha_state;
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return alpha_state0->alpha_func == alpha_state1->alpha_func;
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}
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gboolean
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_cogl_pipeline_alpha_func_reference_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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CoglPipelineAlphaFuncState *alpha_state0 =
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&authority0->big_state->alpha_state;
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CoglPipelineAlphaFuncState *alpha_state1 =
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&authority1->big_state->alpha_state;
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return (alpha_state0->alpha_func_reference ==
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alpha_state1->alpha_func_reference);
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}
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gboolean
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_cogl_pipeline_blend_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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CoglPipelineBlendState *blend_state0 = &authority0->big_state->blend_state;
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CoglPipelineBlendState *blend_state1 = &authority1->big_state->blend_state;
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_COGL_GET_CONTEXT (ctx, FALSE);
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if (blend_state0->blend_equation_rgb != blend_state1->blend_equation_rgb)
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return FALSE;
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if (blend_state0->blend_equation_alpha !=
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blend_state1->blend_equation_alpha)
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return FALSE;
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if (blend_state0->blend_src_factor_alpha !=
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blend_state1->blend_src_factor_alpha)
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return FALSE;
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if (blend_state0->blend_dst_factor_alpha !=
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blend_state1->blend_dst_factor_alpha)
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return FALSE;
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if (blend_state0->blend_src_factor_rgb !=
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blend_state1->blend_src_factor_rgb)
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return FALSE;
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if (blend_state0->blend_dst_factor_rgb !=
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blend_state1->blend_dst_factor_rgb)
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return FALSE;
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if (blend_state0->blend_src_factor_rgb == GL_ONE_MINUS_CONSTANT_COLOR ||
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blend_state0->blend_src_factor_rgb == GL_CONSTANT_COLOR ||
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blend_state0->blend_dst_factor_rgb == GL_ONE_MINUS_CONSTANT_COLOR ||
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blend_state0->blend_dst_factor_rgb == GL_CONSTANT_COLOR)
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{
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if (!cogl_color_equal (&blend_state0->blend_constant,
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&blend_state1->blend_constant))
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return FALSE;
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}
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return TRUE;
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}
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gboolean
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_cogl_pipeline_depth_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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if (authority0->big_state->depth_state.test_enabled == FALSE &&
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authority1->big_state->depth_state.test_enabled == FALSE)
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return TRUE;
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else
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{
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CoglDepthState *s0 = &authority0->big_state->depth_state;
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CoglDepthState *s1 = &authority1->big_state->depth_state;
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return s0->test_enabled == s1->test_enabled &&
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s0->test_function == s1->test_function &&
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s0->write_enabled == s1->write_enabled &&
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s0->range_near == s1->range_near &&
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s0->range_far == s1->range_far;
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}
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}
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gboolean
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_cogl_pipeline_fog_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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CoglPipelineFogState *fog_state0 = &authority0->big_state->fog_state;
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CoglPipelineFogState *fog_state1 = &authority1->big_state->fog_state;
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if (fog_state0->enabled == fog_state1->enabled &&
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cogl_color_equal (&fog_state0->color, &fog_state1->color) &&
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fog_state0->mode == fog_state1->mode &&
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fog_state0->density == fog_state1->density &&
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fog_state0->z_near == fog_state1->z_near &&
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fog_state0->z_far == fog_state1->z_far)
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return TRUE;
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else
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return FALSE;
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}
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gboolean
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_cogl_pipeline_non_zero_point_size_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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return (authority0->big_state->non_zero_point_size ==
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authority1->big_state->non_zero_point_size);
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}
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gboolean
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_cogl_pipeline_point_size_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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return authority0->big_state->point_size == authority1->big_state->point_size;
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}
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gboolean
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_cogl_pipeline_per_vertex_point_size_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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return (authority0->big_state->per_vertex_point_size ==
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authority1->big_state->per_vertex_point_size);
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}
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gboolean
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_cogl_pipeline_cull_face_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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CoglPipelineCullFaceState *cull_face_state0
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= &authority0->big_state->cull_face_state;
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CoglPipelineCullFaceState *cull_face_state1
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= &authority1->big_state->cull_face_state;
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/* The cull face state is considered equal if two pipelines are both
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set to no culling. If the front winding property is ever used for
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anything else or the comparison is used not just for drawing then
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this would have to change */
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if (cull_face_state0->mode == COGL_PIPELINE_CULL_FACE_MODE_NONE)
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return cull_face_state1->mode == COGL_PIPELINE_CULL_FACE_MODE_NONE;
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return (cull_face_state0->mode == cull_face_state1->mode &&
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cull_face_state0->front_winding == cull_face_state1->front_winding);
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}
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gboolean
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_cogl_pipeline_user_shader_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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return (authority0->big_state->user_program ==
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authority1->big_state->user_program);
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}
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typedef struct
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{
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const CoglBoxedValue **dst_values;
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const CoglBoxedValue *src_values;
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int override_count;
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} GetUniformsClosure;
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static gboolean
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get_uniforms_cb (int uniform_num, void *user_data)
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{
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GetUniformsClosure *data = user_data;
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if (data->dst_values[uniform_num] == NULL)
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data->dst_values[uniform_num] = data->src_values + data->override_count;
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data->override_count++;
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return TRUE;
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}
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static void
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_cogl_pipeline_get_all_uniform_values (CoglPipeline *pipeline,
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const CoglBoxedValue **values)
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{
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GetUniformsClosure data;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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memset (values, 0,
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sizeof (const CoglBoxedValue *) * ctx->n_uniform_names);
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data.dst_values = values;
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do
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{
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if ((pipeline->differences & COGL_PIPELINE_STATE_UNIFORMS))
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{
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const CoglPipelineUniformsState *uniforms_state =
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&pipeline->big_state->uniforms_state;
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data.override_count = 0;
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data.src_values = uniforms_state->override_values;
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_cogl_bitmask_foreach (&uniforms_state->override_mask,
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get_uniforms_cb,
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&data);
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}
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pipeline = _cogl_pipeline_get_parent (pipeline);
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}
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while (pipeline);
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}
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gboolean
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_cogl_pipeline_uniforms_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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unsigned long *differences;
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const CoglBoxedValue **values0, **values1;
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int n_longs;
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int i;
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_COGL_GET_CONTEXT (ctx, FALSE);
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if (authority0 == authority1)
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return TRUE;
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values0 = g_alloca (sizeof (const CoglBoxedValue *) * ctx->n_uniform_names);
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values1 = g_alloca (sizeof (const CoglBoxedValue *) * ctx->n_uniform_names);
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n_longs = COGL_FLAGS_N_LONGS_FOR_SIZE (ctx->n_uniform_names);
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differences = g_alloca (n_longs * sizeof (unsigned long));
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memset (differences, 0, sizeof (unsigned long) * n_longs);
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_cogl_pipeline_compare_uniform_differences (differences,
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authority0,
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authority1);
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_cogl_pipeline_get_all_uniform_values (authority0, values0);
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_cogl_pipeline_get_all_uniform_values (authority1, values1);
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COGL_FLAGS_FOREACH_START (differences, n_longs, i)
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{
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const CoglBoxedValue *value0 = values0[i];
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const CoglBoxedValue *value1 = values1[i];
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if (value0 == NULL)
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{
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if (value1 != NULL && value1->type != COGL_BOXED_NONE)
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return FALSE;
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}
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else if (value1 == NULL)
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{
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if (value0 != NULL && value0->type != COGL_BOXED_NONE)
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return FALSE;
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}
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else if (!_cogl_boxed_value_equal (value0, value1))
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return FALSE;
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}
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COGL_FLAGS_FOREACH_END;
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return TRUE;
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}
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gboolean
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_cogl_pipeline_vertex_snippets_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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return _cogl_pipeline_snippet_list_equal (&authority0->big_state->
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vertex_snippets,
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&authority1->big_state->
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vertex_snippets);
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}
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gboolean
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_cogl_pipeline_fragment_snippets_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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return _cogl_pipeline_snippet_list_equal (&authority0->big_state->
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fragment_snippets,
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&authority1->big_state->
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fragment_snippets);
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}
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void
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cogl_pipeline_get_color (CoglPipeline *pipeline,
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CoglColor *color)
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{
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CoglPipeline *authority;
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g_return_if_fail (cogl_is_pipeline (pipeline));
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authority =
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_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_COLOR);
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*color = authority->color;
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}
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/* This is used heavily by the cogl journal when logging quads */
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void
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_cogl_pipeline_get_colorubv (CoglPipeline *pipeline,
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uint8_t *color)
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{
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CoglPipeline *authority =
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_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_COLOR);
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_cogl_color_get_rgba_4ubv (&authority->color, color);
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}
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void
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cogl_pipeline_set_color (CoglPipeline *pipeline,
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const CoglColor *color)
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{
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CoglPipelineState state = COGL_PIPELINE_STATE_COLOR;
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CoglPipeline *authority;
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g_return_if_fail (cogl_is_pipeline (pipeline));
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authority = _cogl_pipeline_get_authority (pipeline, state);
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if (cogl_color_equal (color, &authority->color))
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return;
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/* - Flush journal primitives referencing the current state.
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* - Make sure the pipeline has no dependants so it may be modified.
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* - If the pipeline isn't currently an authority for the state being
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* changed, then initialize that state from the current authority.
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*/
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_cogl_pipeline_pre_change_notify (pipeline, state, color, FALSE);
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pipeline->color = *color;
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_cogl_pipeline_update_authority (pipeline, authority, state,
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_cogl_pipeline_color_equal);
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pipeline->dirty_real_blend_enable = TRUE;
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}
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void
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cogl_pipeline_set_color4ub (CoglPipeline *pipeline,
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uint8_t red,
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uint8_t green,
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uint8_t blue,
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uint8_t alpha)
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{
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CoglColor color;
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cogl_color_init_from_4ub (&color, red, green, blue, alpha);
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cogl_pipeline_set_color (pipeline, &color);
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}
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void
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cogl_pipeline_set_color4f (CoglPipeline *pipeline,
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float red,
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float green,
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float blue,
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float alpha)
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{
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CoglColor color;
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cogl_color_init_from_4f (&color, red, green, blue, alpha);
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cogl_pipeline_set_color (pipeline, &color);
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}
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CoglPipelineBlendEnable
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_cogl_pipeline_get_blend_enabled (CoglPipeline *pipeline)
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{
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CoglPipeline *authority;
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g_return_val_if_fail (cogl_is_pipeline (pipeline), FALSE);
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authority =
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_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_BLEND_ENABLE);
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return authority->blend_enable;
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}
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static gboolean
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_cogl_pipeline_blend_enable_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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return authority0->blend_enable == authority1->blend_enable ? TRUE : FALSE;
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}
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void
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_cogl_pipeline_set_blend_enabled (CoglPipeline *pipeline,
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CoglPipelineBlendEnable enable)
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{
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CoglPipelineState state = COGL_PIPELINE_STATE_BLEND_ENABLE;
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CoglPipeline *authority;
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g_return_if_fail (cogl_is_pipeline (pipeline));
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g_return_if_fail (enable > 1 &&
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"don't pass TRUE or FALSE to _set_blend_enabled!");
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authority = _cogl_pipeline_get_authority (pipeline, state);
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if (authority->blend_enable == enable)
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return;
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/* - Flush journal primitives referencing the current state.
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* - Make sure the pipeline has no dependants so it may be modified.
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* - If the pipeline isn't currently an authority for the state being
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* changed, then initialize that state from the current authority.
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*/
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_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
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pipeline->blend_enable = enable;
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|
_cogl_pipeline_update_authority (pipeline, authority, state,
|
|
_cogl_pipeline_blend_enable_equal);
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_get_ambient (CoglPipeline *pipeline,
|
|
CoglColor *ambient)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
g_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;
|
|
|
|
g_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);
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_get_diffuse (CoglPipeline *pipeline,
|
|
CoglColor *diffuse)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
g_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;
|
|
|
|
g_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);
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
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;
|
|
|
|
g_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;
|
|
|
|
g_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);
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
float
|
|
cogl_pipeline_get_shininess (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
|
|
g_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);
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
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;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
|
|
g_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]);
|
|
}
|
|
|
|
gboolean
|
|
cogl_pipeline_set_blend (CoglPipeline *pipeline,
|
|
const char *blend_description,
|
|
CoglError **error)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_BLEND;
|
|
CoglPipeline *authority;
|
|
CoglBlendStringStatement statements[2];
|
|
CoglBlendStringStatement *rgb;
|
|
CoglBlendStringStatement *a;
|
|
int count;
|
|
CoglPipelineBlendState *blend_state;
|
|
|
|
_COGL_GET_CONTEXT (ctx, FALSE);
|
|
|
|
g_return_val_if_fail (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
count =
|
|
_cogl_blend_string_compile (blend_description,
|
|
COGL_BLEND_STRING_CONTEXT_BLENDING,
|
|
statements,
|
|
error);
|
|
if (!count)
|
|
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;
|
|
|
|
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);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_blend_constant (CoglPipeline *pipeline,
|
|
const CoglColor *constant_color)
|
|
{
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
g_return_if_fail (cogl_is_pipeline (pipeline));
|
|
|
|
if (!_cogl_has_private_feature (ctx, COGL_PRIVATE_FEATURE_BLEND_CONSTANT))
|
|
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);
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
CoglHandle
|
|
cogl_pipeline_get_user_program (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
g_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;
|
|
|
|
g_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_progend (pipeline, COGL_PIPELINE_PROGEND_UNDEFINED);
|
|
|
|
/* 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;
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
gboolean
|
|
cogl_pipeline_set_depth_state (CoglPipeline *pipeline,
|
|
const CoglDepthState *depth_state,
|
|
CoglError **error)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_DEPTH;
|
|
CoglPipeline *authority;
|
|
CoglDepthState *orig_state;
|
|
|
|
_COGL_GET_CONTEXT (ctx, FALSE);
|
|
|
|
g_return_val_if_fail (cogl_is_pipeline (pipeline), FALSE);
|
|
g_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;
|
|
|
|
/* - 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;
|
|
|
|
g_return_if_fail (cogl_is_pipeline (pipeline));
|
|
|
|
authority =
|
|
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_DEPTH);
|
|
*state = authority->big_state->depth_state;
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_set_fog_state (CoglPipeline *pipeline,
|
|
const CoglPipelineFogState *fog_state)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_FOG;
|
|
CoglPipeline *authority;
|
|
CoglPipelineFogState *current_fog_state;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
|
|
g_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;
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_set_non_zero_point_size (CoglPipeline *pipeline,
|
|
gboolean value)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_NON_ZERO_POINT_SIZE;
|
|
CoglPipeline *authority;
|
|
|
|
g_return_if_fail (cogl_is_pipeline (pipeline));
|
|
|
|
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);
|
|
|
|
pipeline->big_state->non_zero_point_size = !!value;
|
|
|
|
_cogl_pipeline_update_authority (pipeline, authority, state,
|
|
_cogl_pipeline_non_zero_point_size_equal);
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_point_size (CoglPipeline *pipeline,
|
|
float point_size)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_POINT_SIZE;
|
|
CoglPipeline *authority;
|
|
|
|
g_return_if_fail (cogl_is_pipeline (pipeline));
|
|
|
|
authority = _cogl_pipeline_get_authority (pipeline, state);
|
|
|
|
if (authority->big_state->point_size == point_size)
|
|
return;
|
|
|
|
/* Changing the point size may additionally modify
|
|
* COGL_PIPELINE_STATE_NON_ZERO_POINT_SIZE. */
|
|
|
|
if ((authority->big_state->point_size > 0.0f) != (point_size > 0.0f))
|
|
_cogl_pipeline_set_non_zero_point_size (pipeline, point_size > 0.0f);
|
|
|
|
/* - 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);
|
|
}
|
|
|
|
gboolean
|
|
cogl_pipeline_set_per_vertex_point_size (CoglPipeline *pipeline,
|
|
gboolean enable,
|
|
CoglError **error)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_PER_VERTEX_POINT_SIZE;
|
|
CoglPipeline *authority;
|
|
|
|
_COGL_GET_CONTEXT (ctx, FALSE);
|
|
g_return_val_if_fail (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
authority = _cogl_pipeline_get_authority (pipeline, state);
|
|
|
|
enable = !!enable;
|
|
|
|
if (authority->big_state->per_vertex_point_size == enable)
|
|
return TRUE;
|
|
|
|
if (enable && !cogl_has_feature (ctx, COGL_FEATURE_ID_PER_VERTEX_POINT_SIZE))
|
|
{
|
|
_cogl_set_error (error,
|
|
COGL_SYSTEM_ERROR,
|
|
COGL_SYSTEM_ERROR_UNSUPPORTED,
|
|
"Per-vertex point size is not supported");
|
|
|
|
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->per_vertex_point_size = enable;
|
|
|
|
_cogl_pipeline_update_authority (pipeline, authority, state,
|
|
_cogl_pipeline_point_size_equal);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
cogl_pipeline_get_per_vertex_point_size (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
g_return_val_if_fail (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
authority =
|
|
_cogl_pipeline_get_authority (pipeline,
|
|
COGL_PIPELINE_STATE_PER_VERTEX_POINT_SIZE);
|
|
|
|
return authority->big_state->per_vertex_point_size;
|
|
}
|
|
|
|
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,
|
|
gboolean transpose,
|
|
const float *value)
|
|
{
|
|
CoglBoxedValue *boxed_value;
|
|
|
|
boxed_value = _cogl_pipeline_override_uniform (pipeline, uniform_location);
|
|
|
|
_cogl_boxed_value_set_matrix (boxed_value,
|
|
dimensions,
|
|
count,
|
|
transpose,
|
|
value);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_has_non_layer_vertex_snippets (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority =
|
|
_cogl_pipeline_get_authority (pipeline,
|
|
COGL_PIPELINE_STATE_VERTEX_SNIPPETS);
|
|
|
|
return authority->big_state->vertex_snippets.entries != NULL;
|
|
}
|
|
|
|
static gboolean
|
|
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);
|
|
gboolean *found_vertex_snippet = user_data;
|
|
|
|
if (authority->big_state->vertex_snippets.entries)
|
|
{
|
|
*found_vertex_snippet = TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_has_vertex_snippets (CoglPipeline *pipeline)
|
|
{
|
|
gboolean 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;
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_has_non_layer_fragment_snippets (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority =
|
|
_cogl_pipeline_get_authority (pipeline,
|
|
COGL_PIPELINE_STATE_FRAGMENT_SNIPPETS);
|
|
|
|
return authority->big_state->fragment_snippets.entries != NULL;
|
|
}
|
|
|
|
static gboolean
|
|
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);
|
|
gboolean *found_fragment_snippet = user_data;
|
|
|
|
if (authority->big_state->fragment_snippets.entries)
|
|
{
|
|
*found_fragment_snippet = TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_has_fragment_snippets (CoglPipeline *pipeline)
|
|
{
|
|
gboolean 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;
|
|
|
|
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));
|
|
}
|
|
|
|
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_non_zero_point_size_state (CoglPipeline *authority,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
gboolean non_zero_point_size = authority->big_state->non_zero_point_size;
|
|
|
|
state->hash = _cogl_util_one_at_a_time_hash (state->hash,
|
|
&non_zero_point_size,
|
|
sizeof (non_zero_point_size));
|
|
}
|
|
|
|
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_per_vertex_point_size_state (CoglPipeline *authority,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
gboolean per_vertex_point_size = authority->big_state->per_vertex_point_size;
|
|
state->hash = _cogl_util_one_at_a_time_hash (state->hash,
|
|
&per_vertex_point_size,
|
|
sizeof (per_vertex_point_size));
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
UNIT_TEST (check_blend_constant_ancestry,
|
|
0 /* no requirements */,
|
|
0 /* no known failures */)
|
|
{
|
|
CoglPipeline *pipeline = cogl_pipeline_new (test_ctx);
|
|
CoglNode *node;
|
|
int pipeline_length = 0;
|
|
int i;
|
|
|
|
/* Repeatedly making a copy of a pipeline and changing the same
|
|
* state (in this case the blend constant) shouldn't cause a long
|
|
* chain of pipelines to be created because the redundant ancestry
|
|
* should be pruned. */
|
|
|
|
for (i = 0; i < 20; i++)
|
|
{
|
|
CoglColor color;
|
|
CoglPipeline *tmp_pipeline;
|
|
|
|
cogl_color_init_from_4f (&color, i / 20.0f, 0.0f, 0.0f, 1.0f);
|
|
|
|
tmp_pipeline = cogl_pipeline_copy (pipeline);
|
|
cogl_object_unref (pipeline);
|
|
pipeline = tmp_pipeline;
|
|
|
|
cogl_pipeline_set_blend_constant (pipeline, &color);
|
|
}
|
|
|
|
for (node = (CoglNode *) pipeline; node; node = node->parent)
|
|
pipeline_length++;
|
|
|
|
g_assert_cmpint (pipeline_length, <=, 2);
|
|
|
|
cogl_object_unref (pipeline);
|
|
}
|
|
|
|
UNIT_TEST (check_uniform_ancestry,
|
|
0 /* no requirements */,
|
|
TEST_KNOWN_FAILURE)
|
|
{
|
|
CoglPipeline *pipeline = cogl_pipeline_new (test_ctx);
|
|
CoglNode *node;
|
|
int pipeline_length = 0;
|
|
int i;
|
|
|
|
/* Repeatedly making a copy of a pipeline and changing a uniform
|
|
* shouldn't cause a long chain of pipelines to be created */
|
|
|
|
for (i = 0; i < 20; i++)
|
|
{
|
|
CoglPipeline *tmp_pipeline;
|
|
int uniform_location;
|
|
|
|
tmp_pipeline = cogl_pipeline_copy (pipeline);
|
|
cogl_object_unref (pipeline);
|
|
pipeline = tmp_pipeline;
|
|
|
|
uniform_location =
|
|
cogl_pipeline_get_uniform_location (pipeline, "a_uniform");
|
|
|
|
cogl_pipeline_set_uniform_1i (pipeline, uniform_location, i);
|
|
}
|
|
|
|
for (node = (CoglNode *) pipeline; node; node = node->parent)
|
|
pipeline_length++;
|
|
|
|
g_assert_cmpint (pipeline_length, <=, 2);
|
|
|
|
cogl_object_unref (pipeline);
|
|
}
|