20657d6245
When a pipeline is added to the cache, a normal copy would previously be made to use as the key in the hash table. This copy keeps a reference to the real pipeline which means all of the resources it contains are retained forever, even if they aren't necessary to generate the hash. This patch changes it to create a trimmed down copy that only has the state necessary to generate the hash. A new function called _cogl_pipeline_deep_copy is added which makes a new pipeline that is directly a child of the root pipeline. It then copies over the pertinent state from the original pipeline. The pipeline state is copied using the existing _cogl_pipeline_copy_differences function. There was no equivalent function for the layer state so I have added one. That way the pipeline key doesn't have the texture data state and it doesn't hold a reference to the original pipeline so it should be much cheaper to keep around. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit e27e01c1215e7e7c7c0183ded11dd769bb112c5c)
384 lines
13 KiB
C
384 lines
13 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) 2008,2009,2010,2011 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_PRIVATE_H
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#define __COGL_PIPELINE_LAYER_PRIVATE_H
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#include "cogl-private.h"
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#include "cogl-pipeline.h"
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#include "cogl-node-private.h"
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#include "cogl-texture.h"
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#include "cogl-matrix.h"
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#include "cogl-pipeline-layer-state.h"
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#include "cogl-pipeline-snippet-private.h"
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#include "cogl-sampler-cache-private.h"
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#include <glib.h>
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typedef struct _CoglPipelineLayer CoglPipelineLayer;
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#define COGL_PIPELINE_LAYER(OBJECT) ((CoglPipelineLayer *)OBJECT)
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/* XXX: should I rename these as
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* COGL_PIPELINE_LAYER_STATE_INDEX_XYZ... ?
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*/
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typedef enum
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{
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/* sparse state */
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COGL_PIPELINE_LAYER_STATE_UNIT_INDEX,
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COGL_PIPELINE_LAYER_STATE_TEXTURE_TYPE_INDEX,
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COGL_PIPELINE_LAYER_STATE_TEXTURE_DATA_INDEX,
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COGL_PIPELINE_LAYER_STATE_SAMPLER_INDEX,
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COGL_PIPELINE_LAYER_STATE_COMBINE_INDEX,
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COGL_PIPELINE_LAYER_STATE_COMBINE_CONSTANT_INDEX,
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COGL_PIPELINE_LAYER_STATE_USER_MATRIX_INDEX,
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COGL_PIPELINE_LAYER_STATE_POINT_SPRITE_COORDS_INDEX,
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COGL_PIPELINE_LAYER_STATE_VERTEX_SNIPPETS_INDEX,
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COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS_INDEX,
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/* note: layers don't currently have any non-sparse state */
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COGL_PIPELINE_LAYER_STATE_SPARSE_COUNT,
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COGL_PIPELINE_LAYER_STATE_COUNT = COGL_PIPELINE_LAYER_STATE_SPARSE_COUNT
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} CoglPipelineLayerStateIndex;
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/* XXX: If you add or remove state groups here you may need to update
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* some of the state masks following this enum too!
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*
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* FIXME: perhaps it would be better to rename this enum to
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* CoglPipelineLayerStateGroup to better convey the fact that a single
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* enum here can map to multiple properties.
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*/
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typedef enum
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{
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COGL_PIPELINE_LAYER_STATE_UNIT =
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1L<<COGL_PIPELINE_LAYER_STATE_UNIT_INDEX,
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COGL_PIPELINE_LAYER_STATE_TEXTURE_TYPE =
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1L<<COGL_PIPELINE_LAYER_STATE_TEXTURE_TYPE_INDEX,
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COGL_PIPELINE_LAYER_STATE_TEXTURE_DATA =
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1L<<COGL_PIPELINE_LAYER_STATE_TEXTURE_DATA_INDEX,
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COGL_PIPELINE_LAYER_STATE_SAMPLER =
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1L<<COGL_PIPELINE_LAYER_STATE_SAMPLER_INDEX,
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COGL_PIPELINE_LAYER_STATE_COMBINE =
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1L<<COGL_PIPELINE_LAYER_STATE_COMBINE_INDEX,
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COGL_PIPELINE_LAYER_STATE_COMBINE_CONSTANT =
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1L<<COGL_PIPELINE_LAYER_STATE_COMBINE_CONSTANT_INDEX,
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COGL_PIPELINE_LAYER_STATE_USER_MATRIX =
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1L<<COGL_PIPELINE_LAYER_STATE_USER_MATRIX_INDEX,
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COGL_PIPELINE_LAYER_STATE_POINT_SPRITE_COORDS =
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1L<<COGL_PIPELINE_LAYER_STATE_POINT_SPRITE_COORDS_INDEX,
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COGL_PIPELINE_LAYER_STATE_VERTEX_SNIPPETS =
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1L<<COGL_PIPELINE_LAYER_STATE_VERTEX_SNIPPETS_INDEX,
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COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS =
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1L<<COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS_INDEX,
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/* COGL_PIPELINE_LAYER_STATE_TEXTURE_INTERN = 1L<<8, */
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} CoglPipelineLayerState;
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/*
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* Various special masks that tag state-groups in different ways...
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*/
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#define COGL_PIPELINE_LAYER_STATE_ALL \
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((1L<<COGL_PIPELINE_LAYER_STATE_COUNT) - 1)
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#define COGL_PIPELINE_LAYER_STATE_ALL_SPARSE \
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COGL_PIPELINE_LAYER_STATE_ALL
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#define COGL_PIPELINE_LAYER_STATE_NEEDS_BIG_STATE \
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(COGL_PIPELINE_LAYER_STATE_COMBINE | \
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COGL_PIPELINE_LAYER_STATE_COMBINE_CONSTANT | \
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COGL_PIPELINE_LAYER_STATE_USER_MATRIX | \
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COGL_PIPELINE_LAYER_STATE_POINT_SPRITE_COORDS | \
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COGL_PIPELINE_LAYER_STATE_VERTEX_SNIPPETS | \
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COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS)
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#define COGL_PIPELINE_LAYER_STATE_MULTI_PROPERTY \
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(COGL_PIPELINE_LAYER_STATE_COMBINE | \
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COGL_PIPELINE_LAYER_STATE_VERTEX_SNIPPETS | \
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COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS)
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#define COGL_PIPELINE_LAYER_STATE_AFFECTS_VERTEX_CODEGEN \
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COGL_PIPELINE_LAYER_STATE_VERTEX_SNIPPETS
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typedef enum
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{
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/* These are the same values as GL */
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COGL_PIPELINE_COMBINE_FUNC_ADD = 0x0104,
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COGL_PIPELINE_COMBINE_FUNC_ADD_SIGNED = 0x8574,
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COGL_PIPELINE_COMBINE_FUNC_SUBTRACT = 0x84E7,
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COGL_PIPELINE_COMBINE_FUNC_INTERPOLATE = 0x8575,
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COGL_PIPELINE_COMBINE_FUNC_REPLACE = 0x1E01,
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COGL_PIPELINE_COMBINE_FUNC_MODULATE = 0x2100,
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COGL_PIPELINE_COMBINE_FUNC_DOT3_RGB = 0x86AE,
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COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA = 0x86AF
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} CoglPipelineCombineFunc;
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typedef enum
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{
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/* Note that these numbers are deliberately not the same as the GL
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numbers so that we can reserve all numbers > TEXTURE0 to store
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very large layer numbers */
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COGL_PIPELINE_COMBINE_SOURCE_TEXTURE,
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COGL_PIPELINE_COMBINE_SOURCE_CONSTANT,
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COGL_PIPELINE_COMBINE_SOURCE_PRIMARY_COLOR,
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COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS,
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COGL_PIPELINE_COMBINE_SOURCE_TEXTURE0
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} CoglPipelineCombineSource;
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typedef enum
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{
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/* These are the same values as GL */
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COGL_PIPELINE_COMBINE_OP_SRC_COLOR = 0x0300,
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COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_COLOR = 0x0301,
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COGL_PIPELINE_COMBINE_OP_SRC_ALPHA = 0x0302,
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COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_ALPHA = 0x0303
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} CoglPipelineCombineOp;
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typedef struct
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{
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/* The texture combine state determines how the color of individual
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* texture fragments are calculated. */
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CoglPipelineCombineFunc texture_combine_rgb_func;
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CoglPipelineCombineSource texture_combine_rgb_src[3];
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CoglPipelineCombineOp texture_combine_rgb_op[3];
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CoglPipelineCombineFunc texture_combine_alpha_func;
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CoglPipelineCombineSource texture_combine_alpha_src[3];
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CoglPipelineCombineOp texture_combine_alpha_op[3];
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float texture_combine_constant[4];
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/* The texture matrix dscribes how to transform texture coordinates */
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CoglMatrix matrix;
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CoglPipelineSnippetList vertex_snippets;
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CoglPipelineSnippetList fragment_snippets;
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CoglBool point_sprite_coords;
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} CoglPipelineLayerBigState;
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struct _CoglPipelineLayer
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{
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/* XXX: Please think twice about adding members that *have* be
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* initialized during a _cogl_pipeline_layer_copy. We are aiming
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* to have copies be as cheap as possible and copies may be
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* done by the primitives APIs which means they may happen
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* in performance critical code paths.
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*
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* XXX: If you are extending the state we track please consider if
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* the state is expected to vary frequently across many pipelines or
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* if the state can be shared among many derived pipelines instead.
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* This will determine if the state should be added directly to this
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* structure which will increase the memory overhead for *all*
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* layers or if instead it can go under ->big_state.
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*/
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/* Layers represent their state in a tree structure where some of
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* the state relating to a given pipeline or layer may actually be
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* owned by one if is ancestors in the tree. We have a common data
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* type to track the tree heirachy so we can share code... */
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CoglNode _parent;
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/* Some layers have a pipeline owner, which is to say that the layer
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* is referenced in that pipelines->layer_differences list. A layer
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* doesn't always have an owner and may simply be an ancestor for
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* other layers that keeps track of some shared state. */
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CoglPipeline *owner;
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/* The lowest index is blended first then others on top */
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int index;
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/* A mask of which state groups are different in this layer
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* in comparison to its parent. */
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unsigned int differences;
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/* Common differences
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*
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* As a basic way to reduce memory usage we divide the layer
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* state into two groups; the minimal state modified in 90% of
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* all layers and the rest, so that the second group can
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* be allocated dynamically when required.
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*/
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/* Each layer is directly associated with a single texture unit */
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int unit_index;
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/* The type of the texture. This is always set even if the texture
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is NULL and it will be used to determine what type of texture
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lookups to use in any shaders generated by the pipeline
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backends. */
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CoglTextureType texture_type;
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/* The texture for this layer, or NULL for an empty
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* layer */
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CoglTexture *texture;
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const CoglSamplerCacheEntry *sampler_cache_entry;
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/* Infrequent differences aren't currently tracked in
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* a separate, dynamically allocated structure as they are
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* for pipelines... */
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CoglPipelineLayerBigState *big_state;
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/* bitfields */
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/* Determines if layer->big_state is valid */
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unsigned int has_big_state:1;
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};
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typedef CoglBool
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(*CoglPipelineLayerStateComparitor) (CoglPipelineLayer *authority0,
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CoglPipelineLayer *authority1);
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void
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_cogl_pipeline_init_default_layers (void);
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static inline CoglPipelineLayer *
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_cogl_pipeline_layer_get_parent (CoglPipelineLayer *layer)
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{
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CoglNode *parent_node = COGL_NODE (layer)->parent;
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return COGL_PIPELINE_LAYER (parent_node);
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}
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CoglPipelineLayer *
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_cogl_pipeline_layer_copy (CoglPipelineLayer *layer);
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void
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_cogl_pipeline_layer_resolve_authorities (CoglPipelineLayer *layer,
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unsigned long differences,
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CoglPipelineLayer **authorities);
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CoglBool
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_cogl_pipeline_layer_equal (CoglPipelineLayer *layer0,
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CoglPipelineLayer *layer1,
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unsigned long differences_mask,
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CoglPipelineEvalFlags flags);
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CoglPipelineLayer *
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_cogl_pipeline_layer_pre_change_notify (CoglPipeline *required_owner,
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CoglPipelineLayer *layer,
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CoglPipelineLayerState change);
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void
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_cogl_pipeline_layer_prune_redundant_ancestry (CoglPipelineLayer *layer);
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CoglBool
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_cogl_pipeline_layer_has_alpha (CoglPipelineLayer *layer);
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CoglBool
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_cogl_pipeline_layer_has_user_matrix (CoglPipeline *pipeline,
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int layer_index);
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/*
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* Calls the pre_paint method on the layer texture if there is
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* one. This will determine whether mipmaps are needed based on the
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* filter settings.
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*/
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void
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_cogl_pipeline_layer_pre_paint (CoglPipelineLayer *layerr);
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void
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_cogl_pipeline_layer_get_wrap_modes (CoglPipelineLayer *layer,
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CoglSamplerCacheWrapMode *wrap_mode_s,
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CoglSamplerCacheWrapMode *wrap_mode_t,
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CoglSamplerCacheWrapMode *wrap_mode_r);
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void
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_cogl_pipeline_layer_get_filters (CoglPipelineLayer *layer,
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CoglPipelineFilter *min_filter,
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CoglPipelineFilter *mag_filter);
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const CoglSamplerCacheEntry *
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_cogl_pipeline_layer_get_sampler_state (CoglPipelineLayer *layer);
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void
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_cogl_pipeline_get_layer_filters (CoglPipeline *pipeline,
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int layer_index,
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CoglPipelineFilter *min_filter,
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CoglPipelineFilter *mag_filter);
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typedef enum {
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COGL_PIPELINE_LAYER_TYPE_TEXTURE
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} CoglPipelineLayerType;
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CoglPipelineLayerType
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_cogl_pipeline_layer_get_type (CoglPipelineLayer *layer);
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CoglTexture *
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_cogl_pipeline_layer_get_texture (CoglPipelineLayer *layer);
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CoglTexture *
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_cogl_pipeline_layer_get_texture_real (CoglPipelineLayer *layer);
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CoglTextureType
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_cogl_pipeline_layer_get_texture_type (CoglPipelineLayer *layer);
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CoglPipelineFilter
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_cogl_pipeline_layer_get_min_filter (CoglPipelineLayer *layer);
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CoglPipelineFilter
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_cogl_pipeline_layer_get_mag_filter (CoglPipelineLayer *layer);
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CoglPipelineWrapMode
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_cogl_pipeline_layer_get_wrap_mode_s (CoglPipelineLayer *layer);
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CoglPipelineWrapMode
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_cogl_pipeline_layer_get_wrap_mode_t (CoglPipelineLayer *layer);
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CoglPipelineWrapMode
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_cogl_pipeline_layer_get_wrap_mode_p (CoglPipelineLayer *layer);
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void
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_cogl_pipeline_layer_copy_differences (CoglPipelineLayer *dest,
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CoglPipelineLayer *src,
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unsigned long differences);
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unsigned long
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_cogl_pipeline_layer_compare_differences (CoglPipelineLayer *layer0,
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CoglPipelineLayer *layer1);
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CoglPipelineLayer *
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_cogl_pipeline_layer_get_authority (CoglPipelineLayer *layer,
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unsigned long difference);
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CoglTexture *
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_cogl_pipeline_layer_get_texture (CoglPipelineLayer *layer);
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int
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_cogl_pipeline_layer_get_unit_index (CoglPipelineLayer *layer);
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CoglBool
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_cogl_pipeline_layer_needs_combine_separate
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(CoglPipelineLayer *combine_authority);
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#endif /* __COGL_PIPELINE_LAYER_PRIVATE_H */
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