mutter/cogl/cogl-pipeline-layer-state-private.h
Neil Roberts df0f9a862f pipeline: Add a snippet hook for the texture lookup
This adds a per-layer snippet hook for the texure lookup. Here the
snippet can modify the texture coordinates used for the lookup or
modify the texel resulting from the lookup. This is the first
per-layer hook so this also adds the
COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the
boilerplate needed to make that work.

Most of the functions used by the pipeline state to manage the snippet
list has been moved into cogl-pipeline-snippet.c so that it can be
shared with the layer state.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-12-06 19:02:06 +00:00

136 lines
5.3 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2011 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifndef __COGL_PIPELINE_LAYER_STATE_PRIVATE_H
#define __COGL_PIPELINE_LAYER_STATE_PRIVATE_H
#include "cogl-pipeline-layer-state.h"
#include "cogl-pipeline-private.h"
CoglPipelineLayer *
_cogl_pipeline_set_layer_unit (CoglPipeline *required_owner,
CoglPipelineLayer *layer,
int unit_index);
CoglPipelineFilter
_cogl_pipeline_get_layer_min_filter (CoglPipeline *pipeline,
int layer_index);
CoglPipelineFilter
_cogl_pipeline_get_layer_mag_filter (CoglPipeline *pipeline,
int layer_index);
gboolean
_cogl_pipeline_layer_texture_target_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1,
CoglPipelineEvalFlags flags);
gboolean
_cogl_pipeline_layer_texture_data_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1,
CoglPipelineEvalFlags flags);
gboolean
_cogl_pipeline_layer_combine_state_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1);
gboolean
_cogl_pipeline_layer_combine_constant_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1);
gboolean
_cogl_pipeline_layer_filters_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1);
gboolean
_cogl_pipeline_layer_wrap_modes_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1);
gboolean
_cogl_pipeline_layer_user_matrix_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1);
gboolean
_cogl_pipeline_layer_point_sprite_coords_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1);
gboolean
_cogl_pipeline_layer_fragment_snippets_equal (CoglPipelineLayer *authority0,
CoglPipelineLayer *authority1);
void
_cogl_pipeline_layer_hash_unit_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_texture_target_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_texture_data_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_filters_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_wrap_modes_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_combine_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_combine_constant_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_user_matrix_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_point_sprite_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
void
_cogl_pipeline_layer_hash_fragment_snippets_state (CoglPipelineLayer *authority,
CoglPipelineLayer **authorities,
CoglPipelineHashState *state);
#endif /* __COGL_PIPELINE_LAYER_STATE_PRIVATE_H */