mutter/cogl/cogl-matrix-stack-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) 2009,2010,2012 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:
*
* 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:
* Havoc Pennington <hp@pobox.com> for litl
* Robert Bragg <robert@linux.intel.com>
*/
#ifndef _COGL_MATRIX_STACK_PRIVATE_H_
#define _COGL_MATRIX_STACK_PRIVATE_H_
#include "cogl-object-private.h"
#include "cogl-matrix-stack.h"
#include "cogl-context.h"
#include "cogl-framebuffer.h"
typedef enum _CoglMatrixOp
{
COGL_MATRIX_OP_LOAD_IDENTITY,
COGL_MATRIX_OP_TRANSLATE,
COGL_MATRIX_OP_ROTATE,
COGL_MATRIX_OP_ROTATE_QUATERNION,
COGL_MATRIX_OP_ROTATE_EULER,
COGL_MATRIX_OP_SCALE,
COGL_MATRIX_OP_MULTIPLY,
COGL_MATRIX_OP_LOAD,
COGL_MATRIX_OP_SAVE,
} CoglMatrixOp;
struct _CoglMatrixEntry
{
CoglMatrixEntry *parent;
CoglMatrixOp op;
unsigned int ref_count;
#ifdef COGL_DEBUG_ENABLED
/* used for performance tracing */
int composite_gets;
#endif
};
typedef struct _CoglMatrixEntryTranslate
{
CoglMatrixEntry _parent_data;
float x;
float y;
float z;
} CoglMatrixEntryTranslate;
typedef struct _CoglMatrixEntryRotate
{
CoglMatrixEntry _parent_data;
float angle;
float x;
float y;
float z;
} CoglMatrixEntryRotate;
typedef struct _CoglMatrixEntryRotateEuler
{
CoglMatrixEntry _parent_data;
/* This doesn't store an actual CoglEuler in order to avoid the
* padding */
float heading;
float pitch;
float roll;
} CoglMatrixEntryRotateEuler;
typedef struct _CoglMatrixEntryRotateQuaternion
{
CoglMatrixEntry _parent_data;
/* This doesn't store an actual CoglQuaternion in order to avoid the
* padding */
float values[4];
} CoglMatrixEntryRotateQuaternion;
typedef struct _CoglMatrixEntryScale
{
CoglMatrixEntry _parent_data;
float x;
float y;
float z;
} CoglMatrixEntryScale;
typedef struct _CoglMatrixEntryMultiply
{
CoglMatrixEntry _parent_data;
CoglMatrix *matrix;
} CoglMatrixEntryMultiply;
typedef struct _CoglMatrixEntryLoad
{
CoglMatrixEntry _parent_data;
CoglMatrix *matrix;
} CoglMatrixEntryLoad;
typedef struct _CoglMatrixEntrySave
{
CoglMatrixEntry _parent_data;
CoglMatrix *cache;
CoglBool cache_valid;
} CoglMatrixEntrySave;
typedef union _CoglMatrixEntryFull
{
CoglMatrixEntry any;
CoglMatrixEntryTranslate translate;
CoglMatrixEntryRotate rotate;
CoglMatrixEntryRotateEuler rotate_euler;
CoglMatrixEntryRotateQuaternion rotate_quaternion;
CoglMatrixEntryScale scale;
CoglMatrixEntryMultiply multiply;
CoglMatrixEntryLoad load;
CoglMatrixEntrySave save;
} CoglMatrixEntryFull;
struct _CoglMatrixStack
{
CoglObject _parent;
CoglContext *context;
CoglMatrixEntry *last_entry;
};
typedef struct _CoglMatrixEntryCache
{
CoglMatrixEntry *entry;
CoglBool flushed_identity;
CoglBool flipped;
} CoglMatrixEntryCache;
void
_cogl_matrix_entry_identity_init (CoglMatrixEntry *entry);
typedef enum {
COGL_MATRIX_MODELVIEW,
COGL_MATRIX_PROJECTION,
COGL_MATRIX_TEXTURE
} CoglMatrixMode;
void
_cogl_matrix_entry_flush_to_gl_builtins (CoglContext *ctx,
CoglMatrixEntry *entry,
CoglMatrixMode mode,
CoglFramebuffer *framebuffer,
CoglBool disable_flip);
void
_cogl_matrix_entry_cache_init (CoglMatrixEntryCache *cache);
CoglBool
_cogl_matrix_entry_cache_maybe_update (CoglMatrixEntryCache *cache,
CoglMatrixEntry *entry,
CoglBool flip);
void
_cogl_matrix_entry_cache_destroy (CoglMatrixEntryCache *cache);
#endif /* _COGL_MATRIX_STACK_PRIVATE_H_ */