fa855b7c45
This makes a start on clearly factoring the deprecated code of core Cogl into a deprecated/ directory. Ideally we want to get to the point where all code here can be re-worked in terms of the public 2.0 api so that it can be kept indefinitely for cogl 1.x api compatibility without cluttering the core code base itself. If we can do this then we can avoid maintaining the Cogl 1.x branches in parallel with master which would reduce the maintenance effort.
378 lines
14 KiB
C
378 lines
14 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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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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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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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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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,
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width, height,
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internal_format));
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/* TODO: instead of allocating storage here it would be better
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* if we had some api that let us just check that the size is
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* supported by the hardware so storage could be allocated
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* lazily when uploading data. */
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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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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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CoglAtlasTexture *atlas_tex;
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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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if ((atlas_tex = _cogl_atlas_texture_new_from_bitmap (bitmap,
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internal_format,
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can_convert_in_place,
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&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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}
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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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internal_format,
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can_convert_in_place,
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&internal_error));
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if (!tex)
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{
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cogl_error_free (internal_error);
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internal_error = 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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internal_format,
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can_convert_in_place,
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error));
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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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NULL);
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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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return 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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NULL));
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else
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return COGL_TEXTURE (cogl_texture_2d_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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NULL));
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}
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