mirror of
https://github.com/brl/mutter.git
synced 2024-11-09 23:46:33 -05:00
a0441778ad
Since the Cogl 1.18 branch is actively maintained in parallel with the
master branch; this is a counter part to commit 1b83ef938fc16b which
re-licensed the master branch to use the MIT license.
This re-licensing is a follow up to the proposal that was sent to the
Cogl mailing list:
http://lists.freedesktop.org/archives/cogl/2013-December/001465.html
Note: there was a copyright assignment policy in place for Clutter (and
therefore Cogl which was part of Clutter at the time) until the 11th of
June 2010 and so we only checked the details after that point (commit
0bbf50f905)
For each file, authors were identified via this Git command:
$ git blame -p -C -C -C20 -M -M10 0bbf50f905..HEAD
We received blanket approvals for re-licensing all Red Hat and Collabora
contributions which reduced how many people needed to be contacted
individually:
- http://lists.freedesktop.org/archives/cogl/2013-December/001470.html
- http://lists.freedesktop.org/archives/cogl/2014-January/001536.html
Individual approval requests were sent to all the other identified authors
who all confirmed the re-license on the Cogl mailinglist:
http://lists.freedesktop.org/archives/cogl/2014-January
As well as updating the copyright header in all sources files, the
COPYING file has been updated to reflect the license change and also
document the other licenses used in Cogl such as the SGI Free Software
License B, version 2.0 and the 3-clause BSD license.
This patch was not simply cherry-picked from master; but the same
methodology was used to check the source files.
1815 lines
63 KiB
C
1815 lines
63 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* A Low Level GPU Graphics and Utilities API
|
|
*
|
|
* Copyright (C) 2008,2009,2010 Intel Corporation.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Robert Bragg <robert@linux.intel.com>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-pipeline-private.h"
|
|
#include "cogl-blend-string.h"
|
|
#include "cogl-util.h"
|
|
#include "cogl-matrix.h"
|
|
#include "cogl-snippet-private.h"
|
|
#include "cogl-texture-private.h"
|
|
#include "cogl-pipeline-layer-state-private.h"
|
|
#include "cogl-error-private.h"
|
|
|
|
#include "string.h"
|
|
#if 0
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-color-private.h"
|
|
|
|
#endif
|
|
|
|
/*
|
|
* XXX: consider special casing layer->unit_index so it's not a sparse
|
|
* property so instead we can assume it's valid for all layer
|
|
* instances.
|
|
* - We would need to initialize ->unit_index in
|
|
* _cogl_pipeline_layer_copy ().
|
|
*
|
|
* XXX: If you use this API you should consider that the given layer
|
|
* might not be writeable and so a new derived layer will be allocated
|
|
* and modified instead. The layer modified will be returned so you
|
|
* can identify when this happens.
|
|
*/
|
|
CoglPipelineLayer *
|
|
_cogl_pipeline_set_layer_unit (CoglPipeline *required_owner,
|
|
CoglPipelineLayer *layer,
|
|
int unit_index)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_UNIT;
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer, change);
|
|
CoglPipelineLayer *new;
|
|
|
|
if (authority->unit_index == unit_index)
|
|
return layer;
|
|
|
|
new =
|
|
_cogl_pipeline_layer_pre_change_notify (required_owner,
|
|
layer,
|
|
change);
|
|
if (new != layer)
|
|
layer = new;
|
|
else
|
|
{
|
|
/* If the 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->unit_index == unit_index)
|
|
{
|
|
layer->differences &= ~change;
|
|
return layer;
|
|
}
|
|
}
|
|
}
|
|
|
|
layer->unit_index = unit_index;
|
|
|
|
/* 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 layer;
|
|
}
|
|
|
|
CoglTexture *
|
|
_cogl_pipeline_layer_get_texture_real (CoglPipelineLayer *layer)
|
|
{
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_TEXTURE_DATA);
|
|
|
|
return authority->texture;
|
|
}
|
|
|
|
CoglTexture *
|
|
cogl_pipeline_get_layer_texture (CoglPipeline *pipeline,
|
|
int layer_index)
|
|
{
|
|
CoglPipelineLayer *layer =
|
|
_cogl_pipeline_get_layer (pipeline, layer_index);
|
|
return _cogl_pipeline_layer_get_texture (layer);
|
|
}
|
|
|
|
CoglTextureType
|
|
_cogl_pipeline_layer_get_texture_type (CoglPipelineLayer *layer)
|
|
{
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer,
|
|
COGL_PIPELINE_LAYER_STATE_TEXTURE_TYPE);
|
|
|
|
return authority->texture_type;
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_set_layer_texture_type (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglTextureType texture_type)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_TEXTURE_TYPE;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
CoglPipelineLayer *new;
|
|
|
|
/* 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 (texture_type == authority->texture_type)
|
|
return;
|
|
|
|
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->texture_type == texture_type)
|
|
{
|
|
layer->differences &= ~change;
|
|
|
|
g_assert (layer->owner == pipeline);
|
|
if (layer->differences == 0)
|
|
_cogl_pipeline_prune_empty_layer_difference (pipeline,
|
|
layer);
|
|
goto changed;
|
|
}
|
|
}
|
|
}
|
|
|
|
layer->texture_type = texture_type;
|
|
|
|
/* 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);
|
|
}
|
|
|
|
changed:
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_set_layer_texture_data (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglTexture *texture)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_TEXTURE_DATA;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
CoglPipelineLayer *new;
|
|
|
|
/* 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->texture == texture)
|
|
return;
|
|
|
|
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->texture == texture)
|
|
{
|
|
layer->differences &= ~change;
|
|
|
|
if (layer->texture != NULL)
|
|
cogl_object_unref (layer->texture);
|
|
|
|
g_assert (layer->owner == pipeline);
|
|
if (layer->differences == 0)
|
|
_cogl_pipeline_prune_empty_layer_difference (pipeline,
|
|
layer);
|
|
goto changed;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (texture != NULL)
|
|
cogl_object_ref (texture);
|
|
if (layer == authority &&
|
|
layer->texture != NULL)
|
|
cogl_object_unref (layer->texture);
|
|
layer->texture = texture;
|
|
|
|
/* 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);
|
|
}
|
|
|
|
changed:
|
|
|
|
pipeline->dirty_real_blend_enable = TRUE;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_layer_texture (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglTexture *texture)
|
|
{
|
|
/* For the convenience of fragend code we separate texture state
|
|
* into the "type" and the "data", and setting a layer texture
|
|
* updates both of these properties.
|
|
*
|
|
* One example for why this is helpful is that the fragends may
|
|
* cache programs they generate and want to re-use those programs
|
|
* with all pipelines having equivalent fragment processing state.
|
|
* For the sake of determining if pipelines have equivalent fragment
|
|
* processing state we don't need to compare that the same
|
|
* underlying texture objects are referenced by the pipelines but we
|
|
* do need to see if they use the same texture types. Making this
|
|
* distinction is much simpler if they are in different state
|
|
* groups.
|
|
*
|
|
* Note: if a NULL texture is set then we leave the type unchanged
|
|
* so we can avoid needlessly invalidating any associated fragment
|
|
* program.
|
|
*/
|
|
if (texture)
|
|
{
|
|
CoglTextureType texture_type =
|
|
_cogl_texture_get_type (texture);
|
|
_cogl_pipeline_set_layer_texture_type (pipeline,
|
|
layer_index,
|
|
texture_type);
|
|
}
|
|
_cogl_pipeline_set_layer_texture_data (pipeline, layer_index, texture);
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_layer_null_texture (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglTextureType texture_type)
|
|
{
|
|
CoglContext *ctx = _cogl_context_get_default ();
|
|
|
|
/* Disallow setting texture types that aren't supported */
|
|
switch (texture_type)
|
|
{
|
|
case COGL_TEXTURE_TYPE_2D:
|
|
break;
|
|
|
|
case COGL_TEXTURE_TYPE_3D:
|
|
if (ctx->default_gl_texture_3d_tex == NULL)
|
|
{
|
|
g_warning ("The default 3D texture was set on a pipeline but "
|
|
"3D textures are not supported");
|
|
texture_type = COGL_TEXTURE_TYPE_2D;
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case COGL_TEXTURE_TYPE_RECTANGLE:
|
|
if (ctx->default_gl_texture_rect_tex == NULL)
|
|
{
|
|
g_warning ("The default rectangle texture was set on a pipeline but "
|
|
"rectangle textures are not supported");
|
|
texture_type = COGL_TEXTURE_TYPE_2D;
|
|
}
|
|
break;
|
|
}
|
|
|
|
_cogl_pipeline_set_layer_texture_type (pipeline, layer_index, texture_type);
|
|
_cogl_pipeline_set_layer_texture_data (pipeline, layer_index, NULL);
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_set_layer_sampler_state (CoglPipeline *pipeline,
|
|
CoglPipelineLayer *layer,
|
|
CoglPipelineLayer *authority,
|
|
const CoglSamplerCacheEntry *state)
|
|
{
|
|
CoglPipelineLayer *new;
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
|
|
if (authority->sampler_cache_entry == state)
|
|
return;
|
|
|
|
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->sampler_cache_entry == state)
|
|
{
|
|
layer->differences &= ~change;
|
|
|
|
g_assert (layer->owner == pipeline);
|
|
if (layer->differences == 0)
|
|
_cogl_pipeline_prune_empty_layer_difference (pipeline,
|
|
layer);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
layer->sampler_cache_entry = state;
|
|
|
|
/* If we weren't previously the authority on this state then we need
|
|
* to extended our differences mask and so it's possible that some
|
|
* of our ancestry will now become redundant, so we aim to reparent
|
|
* ourselves if that's true... */
|
|
if (layer != authority)
|
|
{
|
|
layer->differences |= change;
|
|
_cogl_pipeline_layer_prune_redundant_ancestry (layer);
|
|
}
|
|
}
|
|
|
|
static CoglSamplerCacheWrapMode
|
|
public_to_internal_wrap_mode (CoglPipelineWrapMode mode)
|
|
{
|
|
return (CoglSamplerCacheWrapMode)mode;
|
|
}
|
|
|
|
static CoglPipelineWrapMode
|
|
internal_to_public_wrap_mode (CoglSamplerCacheWrapMode internal_mode)
|
|
{
|
|
_COGL_RETURN_VAL_IF_FAIL (internal_mode !=
|
|
COGL_SAMPLER_CACHE_WRAP_MODE_CLAMP_TO_BORDER,
|
|
COGL_PIPELINE_WRAP_MODE_AUTOMATIC);
|
|
return (CoglPipelineWrapMode)internal_mode;
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_layer_wrap_mode_s (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglPipelineWrapMode mode)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
CoglSamplerCacheWrapMode internal_mode =
|
|
public_to_internal_wrap_mode (mode);
|
|
const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
_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);
|
|
|
|
sampler_state =
|
|
_cogl_sampler_cache_update_wrap_modes (ctx->sampler_cache,
|
|
authority->sampler_cache_entry,
|
|
internal_mode,
|
|
authority->sampler_cache_entry->
|
|
wrap_mode_t,
|
|
authority->sampler_cache_entry->
|
|
wrap_mode_p);
|
|
_cogl_pipeline_set_layer_sampler_state (pipeline,
|
|
layer,
|
|
authority,
|
|
sampler_state);
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_layer_wrap_mode_t (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglPipelineWrapMode mode)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
CoglSamplerCacheWrapMode internal_mode =
|
|
public_to_internal_wrap_mode (mode);
|
|
const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
_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);
|
|
|
|
sampler_state =
|
|
_cogl_sampler_cache_update_wrap_modes (ctx->sampler_cache,
|
|
authority->sampler_cache_entry,
|
|
authority->sampler_cache_entry->
|
|
wrap_mode_s,
|
|
internal_mode,
|
|
authority->sampler_cache_entry->
|
|
wrap_mode_p);
|
|
_cogl_pipeline_set_layer_sampler_state (pipeline,
|
|
layer,
|
|
authority,
|
|
sampler_state);
|
|
}
|
|
|
|
/* The rationale for naming the third texture coordinate 'p' instead
|
|
of OpenGL's usual 'r' is that 'r' conflicts with the usual naming
|
|
of the 'red' component when treating a vector as a color. Under
|
|
GLSL this is awkward because the texture swizzling for a vector
|
|
uses a single letter for each component and the names for colors,
|
|
textures and positions are synonymous. GLSL works around this by
|
|
naming the components of the texture s, t, p and q. Cogl already
|
|
effectively already exposes this naming because it exposes GLSL so
|
|
it makes sense to use that naming consistently. Another alternative
|
|
could be u, v and w. This is what Blender and Direct3D use. However
|
|
the w component conflicts with the w component of a position
|
|
vertex. */
|
|
void
|
|
cogl_pipeline_set_layer_wrap_mode_p (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglPipelineWrapMode mode)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
CoglSamplerCacheWrapMode internal_mode =
|
|
public_to_internal_wrap_mode (mode);
|
|
const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
_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);
|
|
|
|
sampler_state =
|
|
_cogl_sampler_cache_update_wrap_modes (ctx->sampler_cache,
|
|
authority->sampler_cache_entry,
|
|
authority->sampler_cache_entry->
|
|
wrap_mode_s,
|
|
authority->sampler_cache_entry->
|
|
wrap_mode_t,
|
|
internal_mode);
|
|
_cogl_pipeline_set_layer_sampler_state (pipeline,
|
|
layer,
|
|
authority,
|
|
sampler_state);
|
|
}
|
|
|
|
void
|
|
cogl_pipeline_set_layer_wrap_mode (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglPipelineWrapMode mode)
|
|
{
|
|
CoglPipelineLayerState change = COGL_PIPELINE_LAYER_STATE_SAMPLER;
|
|
CoglPipelineLayer *layer;
|
|
CoglPipelineLayer *authority;
|
|
CoglSamplerCacheWrapMode internal_mode =
|
|
public_to_internal_wrap_mode (mode);
|
|
const CoglSamplerCacheEntry *sampler_state;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
_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);
|
|
|
|
sampler_state =
|
|
_cogl_sampler_cache_update_wrap_modes (ctx->sampler_cache,
|
|
authority->sampler_cache_entry,
|
|
internal_mode,
|
|
internal_mode,
|
|
internal_mode);
|
|
_cogl_pipeline_set_layer_sampler_state (pipeline,
|
|
layer,
|
|
authority,
|
|
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);
|
|
|
|
sampler_state = authority->sampler_cache_entry;
|
|
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;
|
|
}
|
|
|
|
CoglBool
|
|
cogl_pipeline_set_layer_point_sprite_coords_enabled (CoglPipeline *pipeline,
|
|
int layer_index,
|
|
CoglBool 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 CoglBool 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;
|
|
}
|
|
|
|
CoglBool
|
|
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);
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_layer_texture_type_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1,
|
|
CoglPipelineEvalFlags flags)
|
|
{
|
|
return authority0->texture_type == authority1->texture_type;
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_layer_texture_data_equal (CoglPipelineLayer *authority0,
|
|
CoglPipelineLayer *authority1,
|
|
CoglPipelineEvalFlags flags)
|
|
{
|
|
if (authority0->texture == NULL)
|
|
{
|
|
if (authority1->texture == NULL)
|
|
return (_cogl_pipeline_layer_get_texture_type (authority0) ==
|
|
_cogl_pipeline_layer_get_texture_type (authority1));
|
|
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;
|
|
}
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_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);
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
|
|
CoglBool
|
|
_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);
|
|
}
|
|
|
|
CoglBool
|
|
_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;
|
|
}
|
|
}
|
|
}
|
|
|
|
CoglBool
|
|
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);
|
|
}
|
|
|
|
CoglBool
|
|
_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_type_state (CoglPipelineLayer *authority,
|
|
CoglPipelineLayer **authorities,
|
|
CoglPipelineHashState *state)
|
|
{
|
|
CoglTextureType texture_type = authority->texture_type;
|
|
|
|
state->hash = _cogl_util_one_at_a_time_hash (state->hash,
|
|
&texture_type,
|
|
sizeof (texture_type));
|
|
}
|
|
|
|
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;
|
|
CoglBool 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);
|
|
}
|