5369b3c601
This adds two new experimental public functions to replace the old
internal _cogl_pipeline_set_cull_face_state function:
void
cogl_pipeline_set_cull_face_mode (CoglPipeline *pipeline,
CoglPipelineCullFaceMode cull_face_mode);
void
cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline,
CoglWinding front_winding);
There are also the corresponding getters.
https://bugzilla.gnome.org/show_bug.cgi?id=663628
Reviewed-by: Robert Bragg <robert@linux.intel.com>
1500 lines
49 KiB
C
1500 lines
49 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2008,2009,2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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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-private.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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_COGL_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 defined(HAVE_COGL_GLES2) || defined(HAVE_COGL_GL)
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if (ctx->driver != COGL_DRIVER_GLES1)
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{
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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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}
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#endif
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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 defined(HAVE_COGL_GLES2) || defined(HAVE_COGL_GL)
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if (ctx->driver != COGL_DRIVER_GLES1 &&
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(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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#endif
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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_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_logic_ops_state_equal (CoglPipeline *authority0,
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CoglPipeline *authority1)
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{
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CoglPipelineLogicOpsState *logic_ops_state0 = &authority0->big_state->logic_ops_state;
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CoglPipelineLogicOpsState *logic_ops_state1 = &authority1->big_state->logic_ops_state;
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return logic_ops_state0->color_mask == logic_ops_state1->color_mask;
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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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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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_COGL_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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guint8 *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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_COGL_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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_cogl_pipeline_update_blend_enable (pipeline, state);
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}
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void
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cogl_pipeline_set_color4ub (CoglPipeline *pipeline,
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guint8 red,
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guint8 green,
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guint8 blue,
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guint8 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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_COGL_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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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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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
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_COGL_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,
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_cogl_pipeline_blend_enable_equal);
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_cogl_pipeline_update_blend_enable (pipeline, state);
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}
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void
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cogl_pipeline_get_ambient (CoglPipeline *pipeline,
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CoglColor *ambient)
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{
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CoglPipeline *authority;
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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
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authority =
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_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_LIGHTING);
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cogl_color_init_from_4fv (ambient,
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authority->big_state->lighting_state.ambient);
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}
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void
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cogl_pipeline_set_ambient (CoglPipeline *pipeline,
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const CoglColor *ambient)
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{
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CoglPipelineState state = COGL_PIPELINE_STATE_LIGHTING;
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CoglPipeline *authority;
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CoglPipelineLightingState *lighting_state;
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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
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authority = _cogl_pipeline_get_authority (pipeline, state);
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lighting_state = &authority->big_state->lighting_state;
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if (cogl_color_equal (ambient, &lighting_state->ambient))
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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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lighting_state = &pipeline->big_state->lighting_state;
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lighting_state->ambient[0] = cogl_color_get_red_float (ambient);
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lighting_state->ambient[1] = cogl_color_get_green_float (ambient);
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lighting_state->ambient[2] = cogl_color_get_blue_float (ambient);
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lighting_state->ambient[3] = cogl_color_get_alpha_float (ambient);
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_cogl_pipeline_update_authority (pipeline, authority, state,
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_cogl_pipeline_lighting_state_equal);
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_cogl_pipeline_update_blend_enable (pipeline, state);
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}
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void
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cogl_pipeline_get_diffuse (CoglPipeline *pipeline,
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CoglColor *diffuse)
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{
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CoglPipeline *authority;
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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
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authority =
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_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_LIGHTING);
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cogl_color_init_from_4fv (diffuse,
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authority->big_state->lighting_state.diffuse);
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}
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void
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cogl_pipeline_set_diffuse (CoglPipeline *pipeline,
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const CoglColor *diffuse)
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{
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CoglPipelineState state = COGL_PIPELINE_STATE_LIGHTING;
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CoglPipeline *authority;
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CoglPipelineLightingState *lighting_state;
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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
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authority = _cogl_pipeline_get_authority (pipeline, state);
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lighting_state = &authority->big_state->lighting_state;
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if (cogl_color_equal (diffuse, &lighting_state->diffuse))
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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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lighting_state = &pipeline->big_state->lighting_state;
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lighting_state->diffuse[0] = cogl_color_get_red_float (diffuse);
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lighting_state->diffuse[1] = cogl_color_get_green_float (diffuse);
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lighting_state->diffuse[2] = cogl_color_get_blue_float (diffuse);
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lighting_state->diffuse[3] = cogl_color_get_alpha_float (diffuse);
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_cogl_pipeline_update_authority (pipeline, authority, state,
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_cogl_pipeline_lighting_state_equal);
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_cogl_pipeline_update_blend_enable (pipeline, state);
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}
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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_mode (CoglPipeline *pipeline,
|
|
CoglPipelineCullFaceMode cull_face_mode)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
|
|
CoglPipeline *authority;
|
|
CoglPipelineCullFaceState *cull_face_state;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
authority = _cogl_pipeline_get_authority (pipeline, state);
|
|
|
|
cull_face_state = &authority->big_state->cull_face_state;
|
|
|
|
if (cull_face_state->mode == cull_face_mode)
|
|
return;
|
|
|
|
/* - Flush journal primitives referencing the current state.
|
|
* - Make sure the pipeline has no dependants so it may be modified.
|
|
* - If the pipeline isn't currently an authority for the state being
|
|
* changed, then initialize that state from the current authority.
|
|
*/
|
|
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
|
|
|
|
pipeline->big_state->cull_face_state.mode = cull_face_mode;
|
|
|
|
_cogl_pipeline_update_authority (pipeline, authority, state,
|
|
_cogl_pipeline_cull_face_state_equal);
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_front_face_winding (CoglPipeline *pipeline,
|
|
CoglWinding front_winding)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
|
|
CoglPipeline *authority;
|
|
CoglPipelineCullFaceState *cull_face_state;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
authority = _cogl_pipeline_get_authority (pipeline, state);
|
|
|
|
cull_face_state = &authority->big_state->cull_face_state;
|
|
|
|
if (cull_face_state->front_winding == front_winding)
|
|
return;
|
|
|
|
/* - Flush journal primitives referencing the current state.
|
|
* - Make sure the pipeline has no dependants so it may be modified.
|
|
* - If the pipeline isn't currently an authority for the state being
|
|
* changed, then initialize that state from the current authority.
|
|
*/
|
|
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
|
|
|
|
pipeline->big_state->cull_face_state.front_winding = front_winding;
|
|
|
|
_cogl_pipeline_update_authority (pipeline, authority, state,
|
|
_cogl_pipeline_cull_face_state_equal);
|
|
}
|
|
|
|
CoglPipelineCullFaceMode
|
|
cogl_pipeline_get_cull_face_mode (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
|
|
CoglPipeline *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline),
|
|
COGL_PIPELINE_CULL_FACE_MODE_NONE);
|
|
|
|
authority = _cogl_pipeline_get_authority (pipeline, state);
|
|
|
|
return authority->big_state->cull_face_state.mode;
|
|
}
|
|
|
|
CoglWinding
|
|
cogl_pipeline_get_front_face_winding (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_CULL_FACE;
|
|
CoglPipeline *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline),
|
|
COGL_PIPELINE_CULL_FACE_MODE_NONE);
|
|
|
|
authority = _cogl_pipeline_get_authority (pipeline, state);
|
|
|
|
return authority->big_state->cull_face_state.front_winding;
|
|
}
|
|
|
|
float
|
|
cogl_pipeline_get_point_size (CoglPipeline *pipeline)
|
|
{
|
|
CoglPipeline *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
authority =
|
|
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_POINT_SIZE);
|
|
|
|
return authority->big_state->point_size;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_point_size (CoglPipeline *pipeline,
|
|
float point_size)
|
|
{
|
|
CoglPipelineState state = COGL_PIPELINE_STATE_POINT_SIZE;
|
|
CoglPipeline *authority;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
authority = _cogl_pipeline_get_authority (pipeline, state);
|
|
|
|
if (authority->big_state->point_size == point_size)
|
|
return;
|
|
|
|
/* - Flush journal primitives referencing the current state.
|
|
* - Make sure the pipeline has no dependants so it may be modified.
|
|
* - If the pipeline isn't currently an authority for the state being
|
|
* changed, then initialize that state from the current authority.
|
|
*/
|
|
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
|
|
|
|
pipeline->big_state->point_size = point_size;
|
|
|
|
_cogl_pipeline_update_authority (pipeline, authority, state,
|
|
_cogl_pipeline_point_size_equal);
|
|
}
|
|
|
|
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));
|
|
}
|