1655 lines
58 KiB
C
1655 lines
58 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2008,2009,2010 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#include "cogl-config.h"
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#include "cogl-context-private.h"
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#include "cogl-pipeline-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-matrix.h"
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#include "cogl-snippet-private.h"
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#include "cogl-texture-private.h"
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#include "cogl-pipeline-layer-state-private.h"
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#include "cogl-error-private.h"
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#include "string.h"
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#if 0
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#include "cogl-context-private.h"
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#include "cogl-color-private.h"
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#endif
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/*
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* XXX: consider special casing layer->unit_index so it's not a sparse
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* property so instead we can assume it's valid for all layer
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* instances.
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* - We would need to initialize ->unit_index in
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* _cogl_pipeline_layer_copy ().
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*
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* XXX: If you use this API you should consider that the given layer
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* might not be writeable and so a new derived layer will be allocated
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* and modified instead. The layer modified will be returned so you
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* can identify when this happens.
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*/
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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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{
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CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_UNIT;
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CoglPipelineLayer *authority =
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_cogl_pipeline_layer_get_authority (layer, change);
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CoglPipelineLayer *new;
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if (authority->unit_index == unit_index)
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return layer;
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new =
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_cogl_pipeline_layer_pre_change_notify (required_owner,
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layer,
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change);
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if (new != layer)
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layer = new;
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else
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{
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/* If the layer we found is currently the authority on the state
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* we are changing see if we can revert to one of our ancestors
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* being the authority. */
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if (layer == authority &&
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_cogl_pipeline_layer_get_parent (authority) != NULL)
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{
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CoglPipelineLayer *parent =
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_cogl_pipeline_layer_get_parent (authority);
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CoglPipelineLayer *old_authority =
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_cogl_pipeline_layer_get_authority (parent, change);
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if (old_authority->unit_index == unit_index)
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{
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layer->differences &= ~change;
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return layer;
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}
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}
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}
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layer->unit_index = unit_index;
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/* If we weren't previously the authority on this state then we need
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* to extended our differences mask and so it's possible that some
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* of our ancestry will now become redundant, so we aim to reparent
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* ourselves if that's true... */
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if (layer != authority)
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{
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layer->differences |= change;
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_cogl_pipeline_layer_prune_redundant_ancestry (layer);
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}
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return layer;
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}
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CoglTexture *
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_cogl_pipeline_layer_get_texture_real (CoglPipelineLayer *layer)
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{
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CoglPipelineLayer *authority =
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_cogl_pipeline_layer_get_authority (layer,
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COGL_PIPELINE_LAYER_STATE_TEXTURE_DATA);
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return authority->texture;
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}
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CoglTexture *
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cogl_pipeline_get_layer_texture (CoglPipeline *pipeline,
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int layer_index)
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{
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CoglPipelineLayer *layer =
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_cogl_pipeline_get_layer (pipeline, layer_index);
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return _cogl_pipeline_layer_get_texture (layer);
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}
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static void
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_cogl_pipeline_set_layer_texture_data (CoglPipeline *pipeline,
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int layer_index,
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CoglTexture *texture)
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{
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CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_TEXTURE_DATA;
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CoglPipelineLayer *layer;
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CoglPipelineLayer *authority;
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CoglPipelineLayer *new;
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/* Note: this will ensure that the layer exists, creating one if it
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* doesn't already.
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*
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* Note: If the layer already existed it's possibly owned by another
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* pipeline. If the layer is created then it will be owned by
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* pipeline. */
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layer = _cogl_pipeline_get_layer (pipeline, layer_index);
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/* Now find the ancestor of the layer that is the authority for the
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* state we want to change */
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authority = _cogl_pipeline_layer_get_authority (layer, change);
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if (authority->texture == texture)
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return;
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new = _cogl_pipeline_layer_pre_change_notify (pipeline, layer, change);
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if (new != layer)
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layer = new;
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else
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{
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/* If the original layer we found is currently the authority on
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* the state we are changing see if we can revert to one of our
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* ancestors being the authority. */
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if (layer == authority &&
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_cogl_pipeline_layer_get_parent (authority) != NULL)
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{
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CoglPipelineLayer *parent =
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_cogl_pipeline_layer_get_parent (authority);
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CoglPipelineLayer *old_authority =
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_cogl_pipeline_layer_get_authority (parent, change);
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if (old_authority->texture == texture)
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{
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layer->differences &= ~change;
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if (layer->texture != NULL)
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cogl_object_unref (layer->texture);
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g_assert (layer->owner == pipeline);
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if (layer->differences == 0)
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_cogl_pipeline_prune_empty_layer_difference (pipeline,
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layer);
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goto changed;
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}
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}
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}
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if (texture != NULL)
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cogl_object_ref (texture);
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if (layer == authority &&
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layer->texture != NULL)
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cogl_object_unref (layer->texture);
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layer->texture = texture;
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/* If we weren't previously the authority on this state then we need
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* to extended our differences mask and so it's possible that some
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* of our ancestry will now become redundant, so we aim to reparent
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* ourselves if that's true... */
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if (layer != authority)
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{
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layer->differences |= change;
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_cogl_pipeline_layer_prune_redundant_ancestry (layer);
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}
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changed:
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pipeline->dirty_real_blend_enable = TRUE;
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}
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void
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cogl_pipeline_set_layer_texture (CoglPipeline *pipeline,
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int layer_index,
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CoglTexture *texture)
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{
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_cogl_pipeline_set_layer_texture_data (pipeline, layer_index, texture);
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}
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void
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cogl_pipeline_set_layer_null_texture (CoglPipeline *pipeline,
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int layer_index)
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{
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_cogl_pipeline_set_layer_texture_data (pipeline, layer_index, NULL);
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}
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static void
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_cogl_pipeline_set_layer_sampler_state (CoglPipeline *pipeline,
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CoglPipelineLayer *layer,
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CoglPipelineLayer *authority,
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const CoglSamplerCacheEntry *state)
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{
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CoglPipelineLayer *new;
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CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
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if (authority->sampler_cache_entry == state)
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return;
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new = _cogl_pipeline_layer_pre_change_notify (pipeline, layer, change);
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if (new != layer)
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layer = new;
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else
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{
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/* If the original layer we found is currently the authority on
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* the state we are changing see if we can revert to one of our
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* ancestors being the authority. */
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if (layer == authority &&
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_cogl_pipeline_layer_get_parent (authority) != NULL)
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{
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CoglPipelineLayer *parent =
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_cogl_pipeline_layer_get_parent (authority);
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CoglPipelineLayer *old_authority =
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_cogl_pipeline_layer_get_authority (parent, change);
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if (old_authority->sampler_cache_entry == state)
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{
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layer->differences &= ~change;
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g_assert (layer->owner == pipeline);
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if (layer->differences == 0)
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_cogl_pipeline_prune_empty_layer_difference (pipeline,
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layer);
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return;
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}
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}
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}
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layer->sampler_cache_entry = state;
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/* If we weren't previously the authority on this state then we need
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* to extended our differences mask and so it's possible that some
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* of our ancestry will now become redundant, so we aim to reparent
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* ourselves if that's true... */
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if (layer != authority)
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{
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layer->differences |= change;
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_cogl_pipeline_layer_prune_redundant_ancestry (layer);
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}
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}
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static CoglSamplerCacheWrapMode
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public_to_internal_wrap_mode (CoglPipelineWrapMode mode)
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{
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return (CoglSamplerCacheWrapMode)mode;
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}
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static CoglPipelineWrapMode
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internal_to_public_wrap_mode (CoglSamplerCacheWrapMode internal_mode)
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{
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_COGL_RETURN_VAL_IF_FAIL (internal_mode !=
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COGL_SAMPLER_CACHE_WRAP_MODE_CLAMP_TO_BORDER,
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COGL_PIPELINE_WRAP_MODE_AUTOMATIC);
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return (CoglPipelineWrapMode)internal_mode;
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}
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void
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cogl_pipeline_set_layer_wrap_mode_s (CoglPipeline *pipeline,
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int layer_index,
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CoglPipelineWrapMode mode)
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{
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CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
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CoglPipelineLayer *layer;
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CoglPipelineLayer *authority;
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CoglSamplerCacheWrapMode internal_mode =
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public_to_internal_wrap_mode (mode);
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const CoglSamplerCacheEntry *sampler_state;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
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/* Note: this will ensure that the layer exists, creating one if it
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* doesn't already.
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*
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* Note: If the layer already existed it's possibly owned by another
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* pipeline. If the layer is created then it will be owned by
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* pipeline. */
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layer = _cogl_pipeline_get_layer (pipeline, layer_index);
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/* Now find the ancestor of the layer that is the authority for the
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* state we want to change */
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authority = _cogl_pipeline_layer_get_authority (layer, change);
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sampler_state =
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_cogl_sampler_cache_update_wrap_modes (ctx->sampler_cache,
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authority->sampler_cache_entry,
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internal_mode,
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authority->sampler_cache_entry->
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wrap_mode_t,
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authority->sampler_cache_entry->
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wrap_mode_p);
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_cogl_pipeline_set_layer_sampler_state (pipeline,
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layer,
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authority,
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sampler_state);
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}
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void
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cogl_pipeline_set_layer_wrap_mode_t (CoglPipeline *pipeline,
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int layer_index,
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CoglPipelineWrapMode mode)
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{
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CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
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CoglPipelineLayer *layer;
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CoglPipelineLayer *authority;
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CoglSamplerCacheWrapMode internal_mode =
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public_to_internal_wrap_mode (mode);
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const CoglSamplerCacheEntry *sampler_state;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
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/* Note: this will ensure that the layer exists, creating one if it
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* doesn't already.
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*
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* Note: If the layer already existed it's possibly owned by another
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* pipeline. If the layer is created then it will be owned by
|
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* pipeline. */
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layer = _cogl_pipeline_get_layer (pipeline, layer_index);
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/* Now find the ancestor of the layer that is the authority for the
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* state we want to change */
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authority = _cogl_pipeline_layer_get_authority (layer, change);
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sampler_state =
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_cogl_sampler_cache_update_wrap_modes (ctx->sampler_cache,
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authority->sampler_cache_entry,
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authority->sampler_cache_entry->
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wrap_mode_s,
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internal_mode,
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authority->sampler_cache_entry->
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wrap_mode_p);
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_cogl_pipeline_set_layer_sampler_state (pipeline,
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layer,
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authority,
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sampler_state);
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}
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/* The rationale for naming the third texture coordinate 'p' instead
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of OpenGL's usual 'r' is that 'r' conflicts with the usual naming
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of the 'red' component when treating a vector as a color. Under
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GLSL this is awkward because the texture swizzling for a vector
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uses a single letter for each component and the names for colors,
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textures and positions are synonymous. GLSL works around this by
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naming the components of the texture s, t, p and q. Cogl already
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effectively already exposes this naming because it exposes GLSL so
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it makes sense to use that naming consistently. Another alternative
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could be u, v and w. This is what Blender and Direct3D use. However
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the w component conflicts with the w component of a position
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vertex. */
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void
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cogl_pipeline_set_layer_wrap_mode_p (CoglPipeline *pipeline,
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int layer_index,
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CoglPipelineWrapMode mode)
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{
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CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
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CoglPipelineLayer *layer;
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CoglPipelineLayer *authority;
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CoglSamplerCacheWrapMode internal_mode =
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public_to_internal_wrap_mode (mode);
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const CoglSamplerCacheEntry *sampler_state;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
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/* Note: this will ensure that the layer exists, creating one if it
|
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* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
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layer = _cogl_pipeline_get_layer (pipeline, layer_index);
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|
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/* Now find the ancestor of the layer that is the authority for the
|
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* state we want to change */
|
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authority = _cogl_pipeline_layer_get_authority (layer, change);
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sampler_state =
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_cogl_sampler_cache_update_wrap_modes (ctx->sampler_cache,
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authority->sampler_cache_entry,
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authority->sampler_cache_entry->
|
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wrap_mode_s,
|
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authority->sampler_cache_entry->
|
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wrap_mode_t,
|
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internal_mode);
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_cogl_pipeline_set_layer_sampler_state (pipeline,
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layer,
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authority,
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sampler_state);
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}
|
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|
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void
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cogl_pipeline_set_layer_wrap_mode (CoglPipeline *pipeline,
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int layer_index,
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CoglPipelineWrapMode mode)
|
|
{
|
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CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
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CoglSamplerCacheWrapMode internal_mode =
|
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public_to_internal_wrap_mode (mode);
|
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const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
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_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
|
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sampler_state =
|
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_cogl_sampler_cache_update_wrap_modes (ctx->sampler_cache,
|
|
authority->sampler_cache_entry,
|
|
internal_mode,
|
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internal_mode,
|
|
internal_mode);
|
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_cogl_pipeline_set_layer_sampler_state (pipeline,
|
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layer,
|
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authority,
|
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sampler_state);
|
|
/* XXX: I wonder if we should really be duplicating the mode into
|
|
* the 'p' wrap mode too? */
|
|
}
|
|
|
|
/* FIXME: deprecate this API */
|
|
CoglPipelineWrapMode
|
|
_cogl_pipeline_layer_get_wrap_mode_s (CoglPipelineLayer *layer)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *authority;
|
|
const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (_cogl_is_pipeline_layer (layer), FALSE);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
|
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sampler_state = authority->sampler_cache_entry;
|
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return internal_to_public_wrap_mode (sampler_state->wrap_mode_s);
|
|
}
|
|
|
|
CoglPipelineWrapMode
|
|
cogl_pipeline_get_layer_wrap_mode_s (CoglPipeline *pipeline, int layer_index)
|
|
{
|
|
CoglPipelineLayer *layer;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
/* FIXME: we shouldn't ever construct a layer in a getter function */
|
|
|
|
return _cogl_pipeline_layer_get_wrap_mode_s (layer);
|
|
}
|
|
|
|
/* FIXME: deprecate this API */
|
|
CoglPipelineWrapMode
|
|
_cogl_pipeline_layer_get_wrap_mode_t (CoglPipelineLayer *layer)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *authority;
|
|
const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (_cogl_is_pipeline_layer (layer), FALSE);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
|
|
sampler_state = authority->sampler_cache_entry;
|
|
return internal_to_public_wrap_mode (sampler_state->wrap_mode_t);
|
|
}
|
|
|
|
CoglPipelineWrapMode
|
|
cogl_pipeline_get_layer_wrap_mode_t (CoglPipeline *pipeline, int layer_index)
|
|
{
|
|
CoglPipelineLayer *layer;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
/* FIXME: we shouldn't ever construct a layer in a getter function */
|
|
|
|
return _cogl_pipeline_layer_get_wrap_mode_t (layer);
|
|
}
|
|
|
|
CoglPipelineWrapMode
|
|
_cogl_pipeline_layer_get_wrap_mode_p (CoglPipelineLayer *layer)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer, change);
|
|
const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
sampler_state = authority->sampler_cache_entry;
|
|
return internal_to_public_wrap_mode (sampler_state->wrap_mode_p);
|
|
}
|
|
|
|
CoglPipelineWrapMode
|
|
cogl_pipeline_get_layer_wrap_mode_p (CoglPipeline *pipeline, int layer_index)
|
|
{
|
|
CoglPipelineLayer *layer;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
return _cogl_pipeline_layer_get_wrap_mode_p (layer);
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_get_wrap_modes (CoglPipelineLayer *layer,
|
|
CoglSamplerCacheWrapMode *wrap_mode_s,
|
|
CoglSamplerCacheWrapMode *wrap_mode_t,
|
|
CoglSamplerCacheWrapMode *wrap_mode_p)
|
|
{
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_SAMPLER);
|
|
|
|
*wrap_mode_s = authority->sampler_cache_entry->wrap_mode_s;
|
|
*wrap_mode_t = authority->sampler_cache_entry->wrap_mode_t;
|
|
*wrap_mode_p = authority->sampler_cache_entry->wrap_mode_p;
|
|
}
|
|
|
|
gboolean
|
|
cogl_pipeline_set_layer_point_sprite_coords_enabled (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
gboolean enable,
|
|
CoglError **error)
|
|
{
|
|
CoglPipelineLayerState change =
|
|
COGL_PIPELINE_LAYER_STATE_POINT_SPRITE_COORDS;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *new;
|
|
CoglPipelineLayer *authority;
|
|
|
|
_COGL_GET_CONTEXT (ctx, FALSE);
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
/* Don't allow point sprite coordinates to be enabled if the driver
|
|
doesn't support it */
|
|
if (enable && !cogl_has_feature (ctx, COGL_FEATURE_ID_POINT_SPRITE))
|
|
{
|
|
if (error)
|
|
{
|
|
_cogl_set_error (error,
|
|
COGL_SYSTEM_ERROR,
|
|
COGL_SYSTEM_ERROR_UNSUPPORTED,
|
|
"Point sprite texture coordinates are enabled for "
|
|
"a layer but the GL driver does not support it.");
|
|
}
|
|
else
|
|
{
|
|
static gboolean warning_seen = FALSE;
|
|
if (!warning_seen)
|
|
g_warning ("Point sprite texture coordinates are enabled "
|
|
"for a layer but the GL driver does not support it.");
|
|
warning_seen = TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
|
|
if (authority->big_state->point_sprite_coords == enable)
|
|
return TRUE;
|
|
|
|
new = _cogl_pipeline_layer_pre_change_notify (pipeline, layer, change);
|
|
if (new != layer)
|
|
layer = new;
|
|
else
|
|
{
|
|
/* If the original layer we found is currently the authority on
|
|
* the state we are changing see if we can revert to one of our
|
|
* ancestors being the authority. */
|
|
if (layer == authority &&
|
|
_cogl_pipeline_layer_get_parent (authority) != NULL)
|
|
{
|
|
CoglPipelineLayer *parent =
|
|
_cogl_pipeline_layer_get_parent (authority);
|
|
CoglPipelineLayer *old_authority =
|
|
_cogl_pipeline_layer_get_authority (parent, change);
|
|
|
|
if (old_authority->big_state->point_sprite_coords == enable)
|
|
{
|
|
layer->differences &= ~change;
|
|
|
|
g_assert (layer->owner == pipeline);
|
|
if (layer->differences == 0)
|
|
_cogl_pipeline_prune_empty_layer_difference (pipeline,
|
|
layer);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
layer->big_state->point_sprite_coords = enable;
|
|
|
|
/* 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 (layer != authority)
|
|
{
|
|
layer->differences |= change;
|
|
_cogl_pipeline_layer_prune_redundant_ancestry (layer);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
cogl_pipeline_get_layer_point_sprite_coords_enabled (CoglPipeline *pipeline,
|
|
int layer_index)
|
|
{
|
|
CoglPipelineLayerState change =
|
|
COGL_PIPELINE_LAYER_STATE_POINT_SPRITE_COORDS;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
/* FIXME: we shouldn't ever construct a layer in a getter function */
|
|
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
|
|
return authority->big_state->point_sprite_coords;
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_layer_add_vertex_snippet (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglSnippet *snippet)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_VERTEX_SNIPPETS;
|
|
CoglPipelineLayer *layer, *authority;
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
|
|
layer = _cogl_pipeline_layer_pre_change_notify (pipeline, layer, change);
|
|
|
|
_cogl_pipeline_snippet_list_add (&layer->big_state->vertex_snippets,
|
|
snippet);
|
|
|
|
/* 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 (layer != authority)
|
|
{
|
|
layer->differences |= change;
|
|
_cogl_pipeline_layer_prune_redundant_ancestry (layer);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_layer_add_fragment_snippet (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglSnippet *snippet)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS;
|
|
CoglPipelineLayer *layer, *authority;
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
|
|
layer = _cogl_pipeline_layer_pre_change_notify (pipeline, layer, change);
|
|
|
|
_cogl_pipeline_snippet_list_add (&layer->big_state->fragment_snippets,
|
|
snippet);
|
|
|
|
/* 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 (layer != authority)
|
|
{
|
|
layer->differences |= change;
|
|
_cogl_pipeline_layer_prune_redundant_ancestry (layer);
|
|
}
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_add_layer_snippet (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglSnippet *snippet)
|
|
{
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
_COGL_RETURN_IF_FAIL (cogl_is_snippet (snippet));
|
|
_COGL_RETURN_IF_FAIL (snippet->hook >= COGL_SNIPPET_FIRST_LAYER_HOOK);
|
|
|
|
if (snippet->hook < COGL_SNIPPET_FIRST_LAYER_FRAGMENT_HOOK)
|
|
_cogl_pipeline_layer_add_vertex_snippet (pipeline,
|
|
layer_index,
|
|
snippet);
|
|
else
|
|
_cogl_pipeline_layer_add_fragment_snippet (pipeline,
|
|
layer_index,
|
|
snippet);
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_texture_data_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1,
|
|
CoglPipelineEvalFlags flags)
|
|
{
|
|
if (authority0->texture == NULL)
|
|
{
|
|
if (authority1->texture == NULL)
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
}
|
|
else if (authority1->texture == NULL)
|
|
return FALSE;
|
|
else
|
|
{
|
|
GLuint gl_handle0, gl_handle1;
|
|
|
|
cogl_texture_get_gl_texture (authority0->texture, &gl_handle0, NULL);
|
|
cogl_texture_get_gl_texture (authority1->texture, &gl_handle1, NULL);
|
|
|
|
return gl_handle0 == gl_handle1;
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_combine_state_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1)
|
|
{
|
|
CoglPipelineLayerBigState *big_state0 = authority0->big_state;
|
|
CoglPipelineLayerBigState *big_state1 = authority1->big_state;
|
|
int n_args;
|
|
int i;
|
|
|
|
if (big_state0->texture_combine_rgb_func !=
|
|
big_state1->texture_combine_rgb_func)
|
|
return FALSE;
|
|
|
|
if (big_state0->texture_combine_alpha_func !=
|
|
big_state1->texture_combine_alpha_func)
|
|
return FALSE;
|
|
|
|
n_args =
|
|
_cogl_get_n_args_for_combine_func (big_state0->texture_combine_rgb_func);
|
|
for (i = 0; i < n_args; i++)
|
|
{
|
|
if ((big_state0->texture_combine_rgb_src[i] !=
|
|
big_state1->texture_combine_rgb_src[i]) ||
|
|
(big_state0->texture_combine_rgb_op[i] !=
|
|
big_state1->texture_combine_rgb_op[i]))
|
|
return FALSE;
|
|
}
|
|
|
|
n_args =
|
|
_cogl_get_n_args_for_combine_func (big_state0->texture_combine_alpha_func);
|
|
for (i = 0; i < n_args; i++)
|
|
{
|
|
if ((big_state0->texture_combine_alpha_src[i] !=
|
|
big_state1->texture_combine_alpha_src[i]) ||
|
|
(big_state0->texture_combine_alpha_op[i] !=
|
|
big_state1->texture_combine_alpha_op[i]))
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_combine_constant_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1)
|
|
{
|
|
return memcmp (authority0->big_state->texture_combine_constant,
|
|
authority1->big_state->texture_combine_constant,
|
|
sizeof (float) * 4) == 0 ? TRUE : FALSE;
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_sampler_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1)
|
|
{
|
|
/* We compare the actual sampler objects rather than just the entry
|
|
pointers because two states with different values can lead to the
|
|
same state in GL terms when AUTOMATIC is used as a wrap mode */
|
|
return (authority0->sampler_cache_entry->sampler_object ==
|
|
authority1->sampler_cache_entry->sampler_object);
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_user_matrix_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1)
|
|
{
|
|
CoglPipelineLayerBigState *big_state0 = authority0->big_state;
|
|
CoglPipelineLayerBigState *big_state1 = authority1->big_state;
|
|
|
|
if (!cogl_matrix_equal (&big_state0->matrix, &big_state1->matrix))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_point_sprite_coords_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1)
|
|
{
|
|
CoglPipelineLayerBigState *big_state0 = authority0->big_state;
|
|
CoglPipelineLayerBigState *big_state1 = authority1->big_state;
|
|
|
|
return big_state0->point_sprite_coords == big_state1->point_sprite_coords;
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_vertex_snippets_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1)
|
|
{
|
|
return _cogl_pipeline_snippet_list_equal (&authority0->big_state->
|
|
vertex_snippets,
|
|
&authority1->big_state->
|
|
vertex_snippets);
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_fragment_snippets_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1)
|
|
{
|
|
return _cogl_pipeline_snippet_list_equal (&authority0->big_state->
|
|
fragment_snippets,
|
|
&authority1->big_state->
|
|
fragment_snippets);
|
|
}
|
|
|
|
static void
|
|
setup_texture_combine_state (CoglBlendStringStatement *statement,
|
|
CoglPipelineCombineFunc *texture_combine_func,
|
|
CoglPipelineCombineSource *texture_combine_src,
|
|
CoglPipelineCombineOp *texture_combine_op)
|
|
{
|
|
int i;
|
|
|
|
switch (statement->function->type)
|
|
{
|
|
case COGL_BLEND_STRING_FUNCTION_REPLACE:
|
|
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_REPLACE;
|
|
break;
|
|
case COGL_BLEND_STRING_FUNCTION_MODULATE:
|
|
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_MODULATE;
|
|
break;
|
|
case COGL_BLEND_STRING_FUNCTION_ADD:
|
|
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_ADD;
|
|
break;
|
|
case COGL_BLEND_STRING_FUNCTION_ADD_SIGNED:
|
|
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_ADD_SIGNED;
|
|
break;
|
|
case COGL_BLEND_STRING_FUNCTION_INTERPOLATE:
|
|
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_INTERPOLATE;
|
|
break;
|
|
case COGL_BLEND_STRING_FUNCTION_SUBTRACT:
|
|
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_SUBTRACT;
|
|
break;
|
|
case COGL_BLEND_STRING_FUNCTION_DOT3_RGB:
|
|
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_DOT3_RGB;
|
|
break;
|
|
case COGL_BLEND_STRING_FUNCTION_DOT3_RGBA:
|
|
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA;
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < statement->function->argc; i++)
|
|
{
|
|
CoglBlendStringArgument *arg = &statement->args[i];
|
|
|
|
switch (arg->source.info->type)
|
|
{
|
|
case COGL_BLEND_STRING_COLOR_SOURCE_CONSTANT:
|
|
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_CONSTANT;
|
|
break;
|
|
case COGL_BLEND_STRING_COLOR_SOURCE_TEXTURE:
|
|
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_TEXTURE;
|
|
break;
|
|
case COGL_BLEND_STRING_COLOR_SOURCE_TEXTURE_N:
|
|
texture_combine_src[i] =
|
|
COGL_PIPELINE_COMBINE_SOURCE_TEXTURE0 + arg->source.texture;
|
|
break;
|
|
case COGL_BLEND_STRING_COLOR_SOURCE_PRIMARY:
|
|
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_PRIMARY_COLOR;
|
|
break;
|
|
case COGL_BLEND_STRING_COLOR_SOURCE_PREVIOUS:
|
|
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS;
|
|
break;
|
|
default:
|
|
g_warning ("Unexpected texture combine source");
|
|
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_TEXTURE;
|
|
}
|
|
|
|
if (arg->source.mask == COGL_BLEND_STRING_CHANNEL_MASK_RGB)
|
|
{
|
|
if (statement->args[i].source.one_minus)
|
|
texture_combine_op[i] =
|
|
COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_COLOR;
|
|
else
|
|
texture_combine_op[i] = COGL_PIPELINE_COMBINE_OP_SRC_COLOR;
|
|
}
|
|
else
|
|
{
|
|
if (statement->args[i].source.one_minus)
|
|
texture_combine_op[i] =
|
|
COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_ALPHA;
|
|
else
|
|
texture_combine_op[i] = COGL_PIPELINE_COMBINE_OP_SRC_ALPHA;
|
|
}
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
cogl_pipeline_set_layer_combine (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
const char *combine_description,
|
|
CoglError **error)
|
|
{
|
|
CoglPipelineLayerState state = COGL_PIPELINE_LAYER_STATE_COMBINE;
|
|
CoglPipelineLayer *authority;
|
|
CoglPipelineLayer *layer;
|
|
CoglBlendStringStatement statements[2];
|
|
CoglBlendStringStatement split[2];
|
|
CoglBlendStringStatement *rgb;
|
|
CoglBlendStringStatement *a;
|
|
int count;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), FALSE);
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, state);
|
|
|
|
count =
|
|
_cogl_blend_string_compile (combine_description,
|
|
COGL_BLEND_STRING_CONTEXT_TEXTURE_COMBINE,
|
|
statements,
|
|
error);
|
|
if (!count)
|
|
return FALSE;
|
|
|
|
if (statements[0].mask == COGL_BLEND_STRING_CHANNEL_MASK_RGBA)
|
|
{
|
|
_cogl_blend_string_split_rgba_statement (statements,
|
|
&split[0], &split[1]);
|
|
rgb = &split[0];
|
|
a = &split[1];
|
|
}
|
|
else
|
|
{
|
|
rgb = &statements[0];
|
|
a = &statements[1];
|
|
}
|
|
|
|
/* FIXME: compare the new state with the current state! */
|
|
|
|
/* possibly flush primitives referencing the current state... */
|
|
layer = _cogl_pipeline_layer_pre_change_notify (pipeline, layer, state);
|
|
|
|
setup_texture_combine_state (rgb,
|
|
&layer->big_state->texture_combine_rgb_func,
|
|
layer->big_state->texture_combine_rgb_src,
|
|
layer->big_state->texture_combine_rgb_op);
|
|
|
|
setup_texture_combine_state (a,
|
|
&layer->big_state->texture_combine_alpha_func,
|
|
layer->big_state->texture_combine_alpha_src,
|
|
layer->big_state->texture_combine_alpha_op);
|
|
|
|
/* If the original layer we found is currently the authority on
|
|
* the state we are changing see if we can revert to one of our
|
|
* ancestors being the authority. */
|
|
if (layer == authority &&
|
|
_cogl_pipeline_layer_get_parent (authority) != NULL)
|
|
{
|
|
CoglPipelineLayer *parent = _cogl_pipeline_layer_get_parent (authority);
|
|
CoglPipelineLayer *old_authority =
|
|
_cogl_pipeline_layer_get_authority (parent, state);
|
|
|
|
if (_cogl_pipeline_layer_combine_state_equal (authority,
|
|
old_authority))
|
|
{
|
|
layer->differences &= ~state;
|
|
|
|
g_assert (layer->owner == pipeline);
|
|
if (layer->differences == 0)
|
|
_cogl_pipeline_prune_empty_layer_difference (pipeline,
|
|
layer);
|
|
goto changed;
|
|
}
|
|
}
|
|
|
|
/* 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 (layer != authority)
|
|
{
|
|
layer->differences |= state;
|
|
_cogl_pipeline_layer_prune_redundant_ancestry (layer);
|
|
}
|
|
|
|
changed:
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_layer_combine_constant (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
const CoglColor *constant_color)
|
|
{
|
|
CoglPipelineLayerState state = COGL_PIPELINE_LAYER_STATE_COMBINE_CONSTANT;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
CoglPipelineLayer *new;
|
|
float color_as_floats[4];
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, state);
|
|
|
|
color_as_floats[0] = cogl_color_get_red_float (constant_color);
|
|
color_as_floats[1] = cogl_color_get_green_float (constant_color);
|
|
color_as_floats[2] = cogl_color_get_blue_float (constant_color);
|
|
color_as_floats[3] = cogl_color_get_alpha_float (constant_color);
|
|
|
|
if (memcmp (authority->big_state->texture_combine_constant,
|
|
color_as_floats, sizeof (float) * 4) == 0)
|
|
return;
|
|
|
|
new = _cogl_pipeline_layer_pre_change_notify (pipeline, layer, state);
|
|
if (new != layer)
|
|
layer = new;
|
|
else
|
|
{
|
|
/* If the original layer we found is currently the authority on
|
|
* the state we are changing see if we can revert to one of our
|
|
* ancestors being the authority. */
|
|
if (layer == authority &&
|
|
_cogl_pipeline_layer_get_parent (authority) != NULL)
|
|
{
|
|
CoglPipelineLayer *parent =
|
|
_cogl_pipeline_layer_get_parent (authority);
|
|
CoglPipelineLayer *old_authority =
|
|
_cogl_pipeline_layer_get_authority (parent, state);
|
|
CoglPipelineLayerBigState *old_big_state = old_authority->big_state;
|
|
|
|
if (memcmp (old_big_state->texture_combine_constant,
|
|
color_as_floats, sizeof (float) * 4) == 0)
|
|
{
|
|
layer->differences &= ~state;
|
|
|
|
g_assert (layer->owner == pipeline);
|
|
if (layer->differences == 0)
|
|
_cogl_pipeline_prune_empty_layer_difference (pipeline,
|
|
layer);
|
|
goto changed;
|
|
}
|
|
}
|
|
}
|
|
|
|
memcpy (layer->big_state->texture_combine_constant,
|
|
color_as_floats,
|
|
sizeof (color_as_floats));
|
|
|
|
/* 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 (layer != authority)
|
|
{
|
|
layer->differences |= state;
|
|
_cogl_pipeline_layer_prune_redundant_ancestry (layer);
|
|
}
|
|
|
|
changed:
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_get_layer_combine_constant (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
float *constant)
|
|
{
|
|
CoglPipelineLayerState change =
|
|
COGL_PIPELINE_LAYER_STATE_COMBINE_CONSTANT;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
/* FIXME: we shouldn't ever construct a layer in a getter function */
|
|
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
memcpy (constant, authority->big_state->texture_combine_constant,
|
|
sizeof (float) * 4);
|
|
}
|
|
|
|
/* We should probably make a public API version of this that has a
|
|
matrix out-param. For an internal API it's good to be able to avoid
|
|
copying the matrix */
|
|
const CoglMatrix *
|
|
_cogl_pipeline_get_layer_matrix (CoglPipeline *pipeline, int layer_index)
|
|
{
|
|
CoglPipelineLayerState change =
|
|
COGL_PIPELINE_LAYER_STATE_USER_MATRIX;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_pipeline (pipeline), NULL);
|
|
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
authority = _cogl_pipeline_layer_get_authority (layer, change);
|
|
return &authority->big_state->matrix;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_layer_matrix (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
const CoglMatrix *matrix)
|
|
{
|
|
CoglPipelineLayerState state = COGL_PIPELINE_LAYER_STATE_USER_MATRIX;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
CoglPipelineLayer *new;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, state);
|
|
|
|
if (cogl_matrix_equal (matrix, &authority->big_state->matrix))
|
|
return;
|
|
|
|
new = _cogl_pipeline_layer_pre_change_notify (pipeline, layer, state);
|
|
if (new != layer)
|
|
layer = new;
|
|
else
|
|
{
|
|
/* If the original layer we found is currently the authority on
|
|
* the state we are changing see if we can revert to one of our
|
|
* ancestors being the authority. */
|
|
if (layer == authority &&
|
|
_cogl_pipeline_layer_get_parent (authority) != NULL)
|
|
{
|
|
CoglPipelineLayer *parent =
|
|
_cogl_pipeline_layer_get_parent (authority);
|
|
CoglPipelineLayer *old_authority =
|
|
_cogl_pipeline_layer_get_authority (parent, state);
|
|
|
|
if (cogl_matrix_equal (matrix, &old_authority->big_state->matrix))
|
|
{
|
|
layer->differences &= ~state;
|
|
|
|
g_assert (layer->owner == pipeline);
|
|
if (layer->differences == 0)
|
|
_cogl_pipeline_prune_empty_layer_difference (pipeline,
|
|
layer);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
layer->big_state->matrix = *matrix;
|
|
|
|
/* 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 (layer != authority)
|
|
{
|
|
layer->differences |= state;
|
|
_cogl_pipeline_layer_prune_redundant_ancestry (layer);
|
|
}
|
|
}
|
|
|
|
CoglTexture *
|
|
_cogl_pipeline_layer_get_texture (CoglPipelineLayer *layer)
|
|
{
|
|
_COGL_RETURN_VAL_IF_FAIL (_cogl_is_pipeline_layer (layer), NULL);
|
|
|
|
return _cogl_pipeline_layer_get_texture_real (layer);
|
|
}
|
|
|
|
gboolean
|
|
_cogl_pipeline_layer_has_user_matrix (CoglPipeline *pipeline,
|
|
int layer_index)
|
|
{
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_USER_MATRIX);
|
|
|
|
/* If the authority is the default pipeline then no, otherwise yes */
|
|
return _cogl_pipeline_layer_get_parent (authority) ? TRUE : FALSE;
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_get_filters (CoglPipelineLayer *layer,
|
|
CoglPipelineFilter *min_filter,
|
|
CoglPipelineFilter *mag_filter)
|
|
{
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_SAMPLER);
|
|
|
|
*min_filter = authority->sampler_cache_entry->min_filter;
|
|
*mag_filter = authority->sampler_cache_entry->mag_filter;
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_get_layer_filters (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglPipelineFilter *min_filter,
|
|
CoglPipelineFilter *mag_filter)
|
|
{
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_SAMPLER);
|
|
|
|
*min_filter = authority->sampler_cache_entry->min_filter;
|
|
*mag_filter = authority->sampler_cache_entry->mag_filter;
|
|
}
|
|
|
|
CoglPipelineFilter
|
|
cogl_pipeline_get_layer_min_filter (CoglPipeline *pipeline,
|
|
int layer_index)
|
|
{
|
|
CoglPipelineFilter min_filter;
|
|
CoglPipelineFilter mag_filter;
|
|
|
|
_cogl_pipeline_get_layer_filters (pipeline, layer_index,
|
|
&min_filter, &mag_filter);
|
|
return min_filter;
|
|
}
|
|
|
|
CoglPipelineFilter
|
|
cogl_pipeline_get_layer_mag_filter (CoglPipeline *pipeline,
|
|
int layer_index)
|
|
{
|
|
CoglPipelineFilter min_filter;
|
|
CoglPipelineFilter mag_filter;
|
|
|
|
_cogl_pipeline_get_layer_filters (pipeline, layer_index,
|
|
&min_filter, &mag_filter);
|
|
return mag_filter;
|
|
}
|
|
|
|
CoglPipelineFilter
|
|
_cogl_pipeline_layer_get_min_filter (CoglPipelineLayer *layer)
|
|
{
|
|
CoglPipelineLayer *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (_cogl_is_pipeline_layer (layer), 0);
|
|
|
|
authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_SAMPLER);
|
|
|
|
return authority->sampler_cache_entry->min_filter;
|
|
}
|
|
|
|
CoglPipelineFilter
|
|
_cogl_pipeline_layer_get_mag_filter (CoglPipelineLayer *layer)
|
|
{
|
|
CoglPipelineLayer *authority;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (_cogl_is_pipeline_layer (layer), 0);
|
|
|
|
authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_SAMPLER);
|
|
|
|
return authority->sampler_cache_entry->mag_filter;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_layer_filters (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglPipelineFilter min_filter,
|
|
CoglPipelineFilter mag_filter)
|
|
{
|
|
CoglPipelineLayerState state = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_pipeline (pipeline));
|
|
|
|
_COGL_RETURN_IF_FAIL (mag_filter == COGL_PIPELINE_FILTER_NEAREST ||
|
|
mag_filter == COGL_PIPELINE_FILTER_LINEAR);
|
|
|
|
/* Note: this will ensure that the layer exists, creating one if it
|
|
* doesn't already.
|
|
*
|
|
* Note: If the layer already existed it's possibly owned by another
|
|
* pipeline. If the layer is created then it will be owned by
|
|
* pipeline. */
|
|
layer = _cogl_pipeline_get_layer (pipeline, layer_index);
|
|
|
|
/* Now find the ancestor of the layer that is the authority for the
|
|
* state we want to change */
|
|
authority = _cogl_pipeline_layer_get_authority (layer, state);
|
|
|
|
sampler_state =
|
|
_cogl_sampler_cache_update_filters (ctx->sampler_cache,
|
|
authority->sampler_cache_entry,
|
|
min_filter,
|
|
mag_filter);
|
|
_cogl_pipeline_set_layer_sampler_state (pipeline,
|
|
layer,
|
|
authority,
|
|
sampler_state);
|
|
}
|
|
|
|
const CoglSamplerCacheEntry *
|
|
_cogl_pipeline_layer_get_sampler_state (CoglPipelineLayer *layer)
|
|
{
|
|
CoglPipelineLayer *authority;
|
|
|
|
authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_SAMPLER);
|
|
|
|
return authority->sampler_cache_entry;
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_unit_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
int unit = authority->unit_index;
|
|
state->hash =
|
|
_cogl_util_one_at_a_time_hash (state->hash, &unit, sizeof (unit));
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_texture_data_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
GLuint gl_handle;
|
|
|
|
cogl_texture_get_gl_texture (authority->texture, &gl_handle, NULL);
|
|
|
|
state->hash =
|
|
_cogl_util_one_at_a_time_hash (state->hash, &gl_handle, sizeof (gl_handle));
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_sampler_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
state->hash =
|
|
_cogl_util_one_at_a_time_hash (state->hash,
|
|
&authority->sampler_cache_entry,
|
|
sizeof (authority->sampler_cache_entry));
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_combine_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
unsigned int hash = state->hash;
|
|
CoglPipelineLayerBigState *b = authority->big_state;
|
|
int n_args;
|
|
int i;
|
|
|
|
hash = _cogl_util_one_at_a_time_hash (hash, &b->texture_combine_rgb_func,
|
|
sizeof (b->texture_combine_rgb_func));
|
|
n_args = _cogl_get_n_args_for_combine_func (b->texture_combine_rgb_func);
|
|
for (i = 0; i < n_args; i++)
|
|
{
|
|
hash =
|
|
_cogl_util_one_at_a_time_hash (hash, &b->texture_combine_rgb_src[i],
|
|
sizeof (b->texture_combine_rgb_src[i]));
|
|
hash =
|
|
_cogl_util_one_at_a_time_hash (hash, &b->texture_combine_rgb_op[i],
|
|
sizeof (b->texture_combine_rgb_op[i]));
|
|
}
|
|
|
|
hash = _cogl_util_one_at_a_time_hash (hash, &b->texture_combine_alpha_func,
|
|
sizeof (b->texture_combine_alpha_func));
|
|
n_args = _cogl_get_n_args_for_combine_func (b->texture_combine_alpha_func);
|
|
for (i = 0; i < n_args; i++)
|
|
{
|
|
hash =
|
|
_cogl_util_one_at_a_time_hash (hash, &b->texture_combine_alpha_src[i],
|
|
sizeof (b->texture_combine_alpha_src[i]));
|
|
hash =
|
|
_cogl_util_one_at_a_time_hash (hash, &b->texture_combine_alpha_op[i],
|
|
sizeof (b->texture_combine_alpha_op[i]));
|
|
}
|
|
|
|
state->hash = hash;
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_combine_constant_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
CoglPipelineLayerBigState *b = authority->big_state;
|
|
gboolean need_hash = FALSE;
|
|
int n_args;
|
|
int i;
|
|
|
|
/* XXX: If the user also asked to hash the ALPHA_FUNC_STATE then it
|
|
* would be nice if we could combine the n_args loops in this
|
|
* function and _cogl_pipeline_layer_hash_combine_state.
|
|
*/
|
|
|
|
n_args = _cogl_get_n_args_for_combine_func (b->texture_combine_rgb_func);
|
|
for (i = 0; i < n_args; i++)
|
|
{
|
|
if (b->texture_combine_rgb_src[i] ==
|
|
COGL_PIPELINE_COMBINE_SOURCE_CONSTANT)
|
|
{
|
|
/* XXX: should we be careful to only hash the alpha
|
|
* component in the COGL_PIPELINE_COMBINE_OP_SRC_ALPHA case? */
|
|
need_hash = TRUE;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
n_args = _cogl_get_n_args_for_combine_func (b->texture_combine_alpha_func);
|
|
for (i = 0; i < n_args; i++)
|
|
{
|
|
if (b->texture_combine_alpha_src[i] ==
|
|
COGL_PIPELINE_COMBINE_SOURCE_CONSTANT)
|
|
{
|
|
/* XXX: should we be careful to only hash the alpha
|
|
* component in the COGL_PIPELINE_COMBINE_OP_SRC_ALPHA case? */
|
|
need_hash = TRUE;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
done:
|
|
if (need_hash)
|
|
{
|
|
float *constant = b->texture_combine_constant;
|
|
state->hash = _cogl_util_one_at_a_time_hash (state->hash, constant,
|
|
sizeof (float) * 4);
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_user_matrix_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
CoglPipelineLayerBigState *big_state = authority->big_state;
|
|
state->hash = _cogl_util_one_at_a_time_hash (state->hash, &big_state->matrix,
|
|
sizeof (float) * 16);
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_point_sprite_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
CoglPipelineLayerBigState *big_state = authority->big_state;
|
|
state->hash =
|
|
_cogl_util_one_at_a_time_hash (state->hash, &big_state->point_sprite_coords,
|
|
sizeof (big_state->point_sprite_coords));
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_vertex_snippets_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
_cogl_pipeline_snippet_list_hash (&authority->big_state->vertex_snippets,
|
|
&state->hash);
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_layer_hash_fragment_snippets_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
_cogl_pipeline_snippet_list_hash (&authority->big_state->fragment_snippets,
|
|
&state->hash);
|
|
}
|