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https://github.com/brl/mutter.git
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df0f9a862f
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>
136 lines
5.3 KiB
C
136 lines
5.3 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) 2011 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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#ifndef __COGL_PIPELINE_LAYER_STATE_PRIVATE_H
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#define __COGL_PIPELINE_LAYER_STATE_PRIVATE_H
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#include "cogl-pipeline-layer-state.h"
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#include "cogl-pipeline-private.h"
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CoglPipelineLayer *
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_cogl_pipeline_set_layer_unit (CoglPipeline *required_owner,
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CoglPipelineLayer *layer,
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int unit_index);
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CoglPipelineFilter
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_cogl_pipeline_get_layer_min_filter (CoglPipeline *pipeline,
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int layer_index);
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CoglPipelineFilter
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_cogl_pipeline_get_layer_mag_filter (CoglPipeline *pipeline,
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int layer_index);
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gboolean
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_cogl_pipeline_layer_texture_target_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1,
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CoglPipelineEvalFlags flags);
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gboolean
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_cogl_pipeline_layer_texture_data_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1,
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CoglPipelineEvalFlags flags);
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gboolean
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_cogl_pipeline_layer_combine_state_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1);
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gboolean
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_cogl_pipeline_layer_combine_constant_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1);
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gboolean
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_cogl_pipeline_layer_filters_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1);
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gboolean
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_cogl_pipeline_layer_wrap_modes_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1);
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gboolean
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_cogl_pipeline_layer_user_matrix_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1);
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gboolean
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_cogl_pipeline_layer_point_sprite_coords_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1);
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gboolean
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_cogl_pipeline_layer_fragment_snippets_equal (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1);
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void
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_cogl_pipeline_layer_hash_unit_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_texture_target_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_texture_data_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_filters_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_wrap_modes_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_combine_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_combine_constant_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_user_matrix_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_point_sprite_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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void
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_cogl_pipeline_layer_hash_fragment_snippets_state (CoglPipelineLayer *authority,
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CoglPipelineLayer **authorities,
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CoglPipelineHashState *state);
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#endif /* __COGL_PIPELINE_LAYER_STATE_PRIVATE_H */
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