mutter/cogl/cogl-attribute-private.h

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/*
* Cogl
*
This re-licenses Cogl 1.18 under the MIT license 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.
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* A Low Level GPU Graphics and Utilities API
*
* Copyright (C) 2010 Intel Corporation.
*
This re-licenses Cogl 1.18 under the MIT license 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.
2014-02-21 20:28:54 -05:00
* 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:
*
This re-licenses Cogl 1.18 under the MIT license 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.
2014-02-21 20:28:54 -05:00
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
This re-licenses Cogl 1.18 under the MIT license 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.
2014-02-21 20:28:54 -05:00
* 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>
*/
#ifndef __COGL_ATTRIBUTE_PRIVATE_H
#define __COGL_ATTRIBUTE_PRIVATE_H
#include "cogl-object-private.h"
#include "cogl-attribute.h"
Change API so that CoglPixelBuffer no longer knows its w/h/format The idea is that CoglPixelBuffer should just be a buffer that can be used for pixel data and it has no idea about the details of any images that are stored in it. This is analogous to CoglAttributeBuffer which itself does not have any information about the attributes. When you want to use a pixel buffer you should create a CoglBitmap which points to a region of the attribute buffer and provides the extra needed information such as the width, height and format. That way it is also possible to use a single CoglPixelBuffer with multiple bitmaps. The changes that are made are: • cogl_pixel_buffer_new_with_size has been removed and in its place is cogl_bitmap_new_with_size. This will create a pixel buffer at the right size and rowstride for the given width/height/format and immediately create a single CoglBitmap to point into it. The old function had an out-parameter for the stride of the image but with the new API this should be queriable from the bitmap (although there is no function for this yet). • There is now a public cogl_pixel_buffer_new constructor. This takes a size in bytes and data pointer similarly to cogl_attribute_buffer_new. • cogl_texture_new_from_buffer has been removed. If you want to create a texture from a pixel buffer you should wrap it up in a bitmap first. There is already API to create a texture from a bitmap. This patch also does a bit of header juggling because cogl-context.h was including cogl-texture.h and cogl-framebuffer.h which were causing some circular dependencies when cogl-bitmap.h includes cogl-context.h. These weren't actually needed in cogl-context.h itself but a few other headers were relying on them being included so this adds the #includes where necessary. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2012-02-25 15:04:45 -05:00
#include "cogl-framebuffer.h"
#include "cogl-pipeline-private.h"
#include "cogl-boxed-value.h"
typedef enum
{
COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY,
COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY,
COGL_ATTRIBUTE_NAME_ID_TEXTURE_COORD_ARRAY,
COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY,
Add support for per-vertex point sizes This adds a new function to enable per-vertex point size on a pipeline. This can be set with cogl_pipeline_set_per_vertex_point_size(). Once enabled the point size can be set either by drawing with an attribute named 'cogl_point_size_in' or by writing to the 'cogl_point_size_out' builtin from a snippet. There is a feature flag which must be checked for before using per-vertex point sizes. This will only be set on GL >= 2.0 or on GLES 2.0. GL will only let you set a per-vertex point size from GLSL by writing to gl_PointSize. This is only available in GL2 and not in the older GLSL extensions. The per-vertex point size has its own pipeline state flag so that it can be part of the state that affects vertex shader generation. Having to enable the per vertex point size with a separate function is a bit awkward. Ideally it would work like the color attribute where you can just set it for every vertex in your primitive with cogl_pipeline_set_color or set it per-vertex by just using the attribute. This is harder to get working with the point size because we need to generate a different vertex shader depending on what attributes are bound. I think if we wanted to make this work transparently we would still want to internally have a pipeline property describing whether the shader was generated with per-vertex support so that it would work with the shader cache correctly. Potentially we could make the per-vertex property internal and automatically make a weak pipeline whenever the attribute is bound. However we would then also need to automatically detect when an application is writing to cogl_point_size_out from a snippet. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 8495d9c1c15ce389885a9356d965eabd97758115) Conflicts: cogl/cogl-context.c cogl/cogl-pipeline-private.h cogl/cogl-pipeline.c cogl/cogl-private.h cogl/driver/gl/cogl-pipeline-progend-fixed.c cogl/driver/gl/gl/cogl-pipeline-progend-fixed-arbfp.c
2012-11-08 11:56:02 -05:00
COGL_ATTRIBUTE_NAME_ID_POINT_SIZE_ARRAY,
COGL_ATTRIBUTE_NAME_ID_CUSTOM_ARRAY
} CoglAttributeNameID;
typedef struct _CoglAttributeNameState
{
char *name;
CoglAttributeNameID name_id;
int name_index;
CoglBool normalized_default;
int layer_number;
} CoglAttributeNameState;
struct _CoglAttribute
{
CoglObject _parent;
const CoglAttributeNameState *name_state;
CoglBool normalized;
CoglBool is_buffered;
union {
struct {
CoglAttributeBuffer *attribute_buffer;
size_t stride;
size_t offset;
int n_components;
CoglAttributeType type;
} buffered;
struct {
CoglContext *context;
CoglBoxedValue boxed;
} constant;
} d;
int immutable_ref;
};
typedef enum
{
COGL_DRAW_SKIP_JOURNAL_FLUSH = 1 << 0,
COGL_DRAW_SKIP_PIPELINE_VALIDATION = 1 << 1,
COGL_DRAW_SKIP_FRAMEBUFFER_FLUSH = 1 << 2,
COGL_DRAW_SKIP_LEGACY_STATE = 1 << 3,
/* By default the vertex attribute drawing code will assume that if
there is a color attribute array enabled then we can't determine
if the colors will be opaque so we need to enabling
blending. However when drawing from the journal we know what the
contents of the color array is so we can override this by passing
this flag. */
COGL_DRAW_COLOR_ATTRIBUTE_IS_OPAQUE = 1 << 4,
/* This forcibly disables the debug option to divert all drawing to
* wireframes */
COGL_DRAW_SKIP_DEBUG_WIREFRAME = 1 << 5
} CoglDrawFlags;
/* During CoglContext initialization we register the "cogl_color_in"
* attribute name so it gets a global name_index of 0. We need to know
* the name_index for "cogl_color_in" in
* _cogl_pipeline_flush_gl_state() */
#define COGL_ATTRIBUTE_COLOR_NAME_INDEX 0
CoglAttributeNameState *
_cogl_attribute_register_attribute_name (CoglContext *context,
const char *name);
CoglAttribute *
_cogl_attribute_immutable_ref (CoglAttribute *attribute);
void
_cogl_attribute_immutable_unref (CoglAttribute *attribute);
typedef struct
{
int unit;
CoglPipelineFlushOptions options;
uint32_t fallback_layers;
} CoglFlushLayerState;
void
_cogl_flush_attributes_state (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglDrawFlags flags,
CoglAttribute **attributes,
int n_attributes);
pipeline: improve real_blend_enable checks Since _cogl_pipeline_update_blend_enable() can sometimes show up quite high in profiles; instead of calling _cogl_pipeline_update_blend_enable() whenever we change pipeline state that may affect blending we now just set a dirty flag and when we flush a pipeline we check this dirty flag and lazily calculate whether blender really needs to be enabled if it's set. Since it turns out we were too optimistic in assuming most GL drivers would recognize blending with ADD(src,0) is equivalent to disabling GL_BLEND we now check this case ourselves so we can always explicitly disable GL_BLEND if we know we don't need blending. This introduces the idea of an 'unknown_color_alpha' boolean to the pipeline flush code which is set whenever we can't guarantee that the color attribute is opaque. For example this is set whenever a user specifies a color attribute with 4 components when drawing a primitive. This boolean needs to be cached along with every pipeline because pipeline::real_blend_enabled depends on this and so we need to also call _cogl_pipeline_update_blend_enable() if the status of this changes. Incidentally with this patch we now no longer ever use _cogl_pipeline_set_blend_enable() internally. For now the internal api hasn't been removed though since we might want to consider re-purposing it as a public api since it will now not conflict with our own internal state tracking and could provide a more convenient way to disable blending than setting a blend string. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit ab2ae18f3207514c91fa6fd9f2d3f2ed93a86497)
2013-05-16 10:19:30 -04:00
int
_cogl_attribute_get_n_components (CoglAttribute *attribute);
#endif /* __COGL_ATTRIBUTE_PRIVATE_H */