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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.
420 lines
14 KiB
C
420 lines
14 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) 2007,2008,2009,2011,2012 Intel Corporation.
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* Copyright (C) 2010 Red Hat, Inc.
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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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* Matthew Allum <mallum@openedhand.com>
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* Neil Roberts <neil@linux.intel.com>
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* Robert Bragg <robert@linux.intel.com>
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*/
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#include <config.h>
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#include "cogl-context-private.h"
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#include "cogl-texture.h"
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#include "cogl-util.h"
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#include "cogl-texture-2d.h"
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#include "cogl-texture-2d-private.h"
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#include "cogl-primitive-texture.h"
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#include "cogl-texture-2d-sliced-private.h"
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#include "cogl-private.h"
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#include "cogl-object.h"
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#include "cogl-bitmap-private.h"
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#include "cogl-atlas-texture-private.h"
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#include "cogl-error-private.h"
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#include "cogl-texture-rectangle.h"
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#include "cogl-sub-texture.h"
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#include "cogl-texture-2d-gl.h"
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#include "deprecated/cogl-auto-texture.h"
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static CoglTexture *
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_cogl_texture_new_from_bitmap (CoglBitmap *bitmap,
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CoglTextureFlags flags,
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CoglPixelFormat internal_format,
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CoglBool can_convert_in_place,
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CoglError **error);
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static void
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set_auto_mipmap_cb (CoglTexture *sub_texture,
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const float *sub_texture_coords,
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const float *meta_coords,
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void *user_data)
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{
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cogl_primitive_texture_set_auto_mipmap (COGL_PRIMITIVE_TEXTURE (sub_texture),
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FALSE);
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}
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CoglTexture *
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cogl_texture_new_with_size (unsigned int width,
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unsigned int height,
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CoglTextureFlags flags,
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CoglPixelFormat internal_format)
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{
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CoglTexture *tex;
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CoglError *skip_error = NULL;
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_COGL_GET_CONTEXT (ctx, NULL);
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if ((_cogl_util_is_pot (width) && _cogl_util_is_pot (height)) ||
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(cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_BASIC) &&
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cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_MIPMAP)))
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{
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/* First try creating a fast-path non-sliced texture */
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tex = COGL_TEXTURE (cogl_texture_2d_new_with_size (ctx, width, height));
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_cogl_texture_set_internal_format (tex, internal_format);
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if (!cogl_texture_allocate (tex, &skip_error))
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{
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cogl_error_free (skip_error);
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cogl_object_unref (tex);
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tex = NULL;
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}
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}
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else
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tex = NULL;
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if (!tex)
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{
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/* If it fails resort to sliced textures */
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int max_waste = flags & COGL_TEXTURE_NO_SLICING ? -1 : COGL_TEXTURE_MAX_WASTE;
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tex = COGL_TEXTURE (cogl_texture_2d_sliced_new_with_size (ctx,
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width,
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height,
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max_waste));
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_cogl_texture_set_internal_format (tex, internal_format);
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}
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/* NB: This api existed before Cogl introduced lazy allocation of
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* textures and so we maintain its original synchronous allocation
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* semantics and return NULL if allocation fails... */
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if (!cogl_texture_allocate (tex, &skip_error))
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{
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cogl_error_free (skip_error);
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cogl_object_unref (tex);
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return NULL;
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}
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if (tex &&
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flags & COGL_TEXTURE_NO_AUTO_MIPMAP)
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{
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cogl_meta_texture_foreach_in_region (COGL_META_TEXTURE (tex),
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0, 0, 1, 1,
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COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
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COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
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set_auto_mipmap_cb,
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NULL);
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}
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return tex;
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}
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static CoglTexture *
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_cogl_texture_new_from_data (CoglContext *ctx,
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int width,
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int height,
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CoglTextureFlags flags,
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CoglPixelFormat format,
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CoglPixelFormat internal_format,
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int rowstride,
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const uint8_t *data,
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CoglError **error)
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{
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CoglBitmap *bmp;
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CoglTexture *tex;
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_COGL_RETURN_VAL_IF_FAIL (format != COGL_PIXEL_FORMAT_ANY, NULL);
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_COGL_RETURN_VAL_IF_FAIL (data != NULL, NULL);
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/* Rowstride from width if not given */
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if (rowstride == 0)
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rowstride = width * _cogl_pixel_format_get_bytes_per_pixel (format);
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/* Wrap the data into a bitmap */
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bmp = cogl_bitmap_new_for_data (ctx,
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width, height,
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format,
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rowstride,
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(uint8_t *) data);
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tex = _cogl_texture_new_from_bitmap (bmp,
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flags,
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internal_format,
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FALSE, /* can't convert in place */
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error);
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cogl_object_unref (bmp);
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return tex;
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}
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CoglTexture *
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cogl_texture_new_from_data (int width,
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int height,
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CoglTextureFlags flags,
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CoglPixelFormat format,
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CoglPixelFormat internal_format,
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int rowstride,
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const uint8_t *data)
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{
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CoglError *ignore_error = NULL;
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CoglTexture *tex;
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_COGL_GET_CONTEXT (ctx, NULL);
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tex = _cogl_texture_new_from_data (ctx,
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width, height,
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flags,
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format, internal_format,
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rowstride,
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data,
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&ignore_error);
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if (!tex)
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cogl_error_free (ignore_error);
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return tex;
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}
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static CoglTexture *
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_cogl_texture_new_from_bitmap (CoglBitmap *bitmap,
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CoglTextureFlags flags,
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CoglPixelFormat internal_format,
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CoglBool can_convert_in_place,
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CoglError **error)
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{
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CoglContext *ctx = _cogl_bitmap_get_context (bitmap);
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CoglTexture *tex;
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CoglError *internal_error = NULL;
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if (!flags &&
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!COGL_DEBUG_ENABLED (COGL_DEBUG_DISABLE_ATLAS))
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{
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/* First try putting the texture in the atlas */
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CoglAtlasTexture *atlas_tex =
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_cogl_atlas_texture_new_from_bitmap (bitmap,
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can_convert_in_place);
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_cogl_texture_set_internal_format (COGL_TEXTURE (atlas_tex),
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internal_format);
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if (cogl_texture_allocate (COGL_TEXTURE (atlas_tex), &internal_error))
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return COGL_TEXTURE (atlas_tex);
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cogl_error_free (internal_error);
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internal_error = NULL;
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cogl_object_unref (atlas_tex);
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}
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/* If that doesn't work try a fast path 2D texture */
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if ((_cogl_util_is_pot (bitmap->width) &&
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_cogl_util_is_pot (bitmap->height)) ||
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(cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_BASIC) &&
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cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_MIPMAP)))
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{
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tex = COGL_TEXTURE (_cogl_texture_2d_new_from_bitmap (bitmap,
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can_convert_in_place));
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_cogl_texture_set_internal_format (tex, internal_format);
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if (!cogl_texture_allocate (tex, &internal_error))
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{
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cogl_error_free (internal_error);
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internal_error = NULL;
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cogl_object_unref (tex);
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tex = NULL;
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}
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}
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else
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tex = NULL;
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if (!tex)
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{
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/* Otherwise create a sliced texture */
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int max_waste = flags & COGL_TEXTURE_NO_SLICING ? -1 : COGL_TEXTURE_MAX_WASTE;
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tex = COGL_TEXTURE (_cogl_texture_2d_sliced_new_from_bitmap (bitmap,
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max_waste,
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can_convert_in_place));
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_cogl_texture_set_internal_format (tex, internal_format);
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if (!cogl_texture_allocate (tex, error))
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{
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cogl_object_unref (tex);
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tex = NULL;
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}
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}
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if (tex &&
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flags & COGL_TEXTURE_NO_AUTO_MIPMAP)
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{
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cogl_meta_texture_foreach_in_region (COGL_META_TEXTURE (tex),
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0, 0, 1, 1,
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COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
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COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
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set_auto_mipmap_cb,
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NULL);
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}
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return tex;
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}
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CoglTexture *
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cogl_texture_new_from_bitmap (CoglBitmap *bitmap,
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CoglTextureFlags flags,
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CoglPixelFormat internal_format)
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{
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CoglError *ignore_error = NULL;
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CoglTexture *tex =
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_cogl_texture_new_from_bitmap (bitmap,
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flags,
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internal_format,
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FALSE, /* can't convert in-place */
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&ignore_error);
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if (!tex)
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cogl_error_free (ignore_error);
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return tex;
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}
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CoglTexture *
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cogl_texture_new_from_file (const char *filename,
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CoglTextureFlags flags,
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CoglPixelFormat internal_format,
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CoglError **error)
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{
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CoglBitmap *bmp;
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CoglTexture *texture = NULL;
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_COGL_GET_CONTEXT (ctx, NULL);
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_COGL_RETURN_VAL_IF_FAIL (error == NULL || *error == NULL, NULL);
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bmp = cogl_bitmap_new_from_file (filename, error);
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if (bmp == NULL)
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return NULL;
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texture = _cogl_texture_new_from_bitmap (bmp, flags,
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internal_format,
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TRUE, /* can convert in-place */
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error);
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cogl_object_unref (bmp);
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return texture;
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}
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CoglTexture *
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cogl_texture_new_from_foreign (GLuint gl_handle,
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GLenum gl_target,
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GLuint width,
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GLuint height,
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GLuint x_pot_waste,
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GLuint y_pot_waste,
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CoglPixelFormat format)
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{
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_COGL_GET_CONTEXT (ctx, NULL);
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#ifdef HAVE_COGL_GL
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if (gl_target == GL_TEXTURE_RECTANGLE_ARB)
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{
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CoglTextureRectangle *texture_rectangle;
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CoglSubTexture *sub_texture;
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if (x_pot_waste != 0 || y_pot_waste != 0)
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{
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/* It shouldn't be necessary to have waste in this case since
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* the texture isn't limited to power of two sizes. */
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g_warning ("You can't create a foreign GL_TEXTURE_RECTANGLE cogl "
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"texture with waste\n");
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return NULL;
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}
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texture_rectangle = cogl_texture_rectangle_new_from_foreign (ctx,
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gl_handle,
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width,
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height,
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format);
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_cogl_texture_set_internal_format (COGL_TEXTURE (texture_rectangle),
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format);
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/* CoglTextureRectangle textures work with non-normalized
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* coordinates, but the semantics for this function that people
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* depend on are that all returned texture works with normalized
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* coordinates so we wrap with a CoglSubTexture... */
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sub_texture = cogl_sub_texture_new (ctx,
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COGL_TEXTURE (texture_rectangle),
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0, 0, width, height);
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return COGL_TEXTURE (sub_texture);
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}
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#endif
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if (x_pot_waste != 0 || y_pot_waste != 0)
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{
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CoglTexture *tex =
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COGL_TEXTURE (_cogl_texture_2d_sliced_new_from_foreign (ctx,
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gl_handle,
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gl_target,
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width,
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height,
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x_pot_waste,
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y_pot_waste,
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format));
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_cogl_texture_set_internal_format (tex, format);
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cogl_texture_allocate (tex, NULL);
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return tex;
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}
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else
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{
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CoglTexture *tex =
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COGL_TEXTURE (cogl_texture_2d_gl_new_from_foreign (ctx,
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gl_handle,
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width,
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height,
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format));
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_cogl_texture_set_internal_format (tex, format);
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cogl_texture_allocate (tex, NULL);
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return tex;
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}
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}
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CoglTexture *
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cogl_texture_new_from_sub_texture (CoglTexture *full_texture,
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int sub_x,
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int sub_y,
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int sub_width,
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int sub_height)
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{
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_COGL_GET_CONTEXT (ctx, NULL);
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return COGL_TEXTURE (cogl_sub_texture_new (ctx,
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full_texture, sub_x, sub_y,
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sub_width, sub_height));
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}
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