8e204e036a
As we will start adding support for more pixel formats, we will need to define a notion of planes. This commit doesn't make any functional change, but starts adding the idea of pixel formats and how they (at this point only theoretically) can have multple planes. Since a lot of code in Mutter assumes we only get to deal with single plane pixel formats, this commit also adds assertions and if-checks to make sure we don't accidentally try something that doesn't make sense. https://gitlab.gnome.org/GNOME/mutter/merge_requests/858
328 lines
11 KiB
C
328 lines
11 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 "cogl-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-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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gboolean can_convert_in_place,
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GError **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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GError *skip_error = NULL;
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_COGL_GET_CONTEXT (ctx, NULL);
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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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g_error_free (skip_error);
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skip_error = NULL;
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cogl_object_unref (tex);
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tex = NULL;
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}
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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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g_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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GError **error)
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{
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CoglBitmap *bmp;
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CoglTexture *tex;
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g_return_val_if_fail (format != COGL_PIXEL_FORMAT_ANY, NULL);
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g_return_val_if_fail (cogl_pixel_format_get_n_planes (format) == 1, NULL);
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g_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, 0);
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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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GError *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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g_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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gboolean can_convert_in_place,
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GError **error)
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{
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CoglTexture *tex;
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GError *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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g_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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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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g_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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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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GError *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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g_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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GError **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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g_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_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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