mirror of
https://github.com/brl/mutter.git
synced 2024-12-23 19:42:05 +00:00
061240ef2a
This adds cogl_texture_2d_sliced_new_from_bitmap/data/file apis in preparation for removing the cogl_texture_new_from_bitmap/file apis that are considered a bit too magic, but we don't want to loose the convenience they have. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 218da8e1349d7658f45c6933b9736c0d32941b8b) Conflicts: cogl/cogl-auto-texture.c
373 lines
14 KiB
C
373 lines
14 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2007,2008,2009,2011,2012 Intel Corporation.
|
|
* Copyright (C) 2010 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Matthew Allum <mallum@openedhand.com>
|
|
* Neil Roberts <neil@linux.intel.com>
|
|
* Robert Bragg <robert@linux.intel.com>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-texture.h"
|
|
#include "cogl-util.h"
|
|
#include "cogl-texture-2d.h"
|
|
#include "cogl-texture-2d-private.h"
|
|
#include "cogl-primitive-texture.h"
|
|
#include "cogl-texture-2d-sliced-private.h"
|
|
#include "cogl-private.h"
|
|
#include "cogl-object.h"
|
|
#include "cogl-bitmap-private.h"
|
|
#include "cogl-atlas-texture-private.h"
|
|
#include "cogl-error-private.h"
|
|
#include "cogl-texture-rectangle.h"
|
|
#include "cogl-sub-texture.h"
|
|
#include "cogl-texture-2d-gl.h"
|
|
|
|
static CoglTexture *
|
|
_cogl_texture_new_from_bitmap (CoglBitmap *bitmap,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format,
|
|
CoglBool can_convert_in_place,
|
|
CoglError **error);
|
|
|
|
static void
|
|
set_auto_mipmap_cb (CoglTexture *sub_texture,
|
|
const float *sub_texture_coords,
|
|
const float *meta_coords,
|
|
void *user_data)
|
|
{
|
|
cogl_primitive_texture_set_auto_mipmap (COGL_PRIMITIVE_TEXTURE (sub_texture),
|
|
FALSE);
|
|
}
|
|
|
|
CoglTexture *
|
|
cogl_texture_new_with_size (unsigned int width,
|
|
unsigned int height,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format)
|
|
{
|
|
CoglTexture *tex;
|
|
CoglError *skip_error = NULL;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NULL);
|
|
|
|
if ((_cogl_util_is_pot (width) && _cogl_util_is_pot (height)) ||
|
|
(cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_BASIC) &&
|
|
cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_MIPMAP)))
|
|
{
|
|
/* First try creating a fast-path non-sliced texture */
|
|
tex = COGL_TEXTURE (cogl_texture_2d_new_with_size (ctx,
|
|
width, height,
|
|
internal_format));
|
|
|
|
/* TODO: instead of allocating storage here it would be better
|
|
* if we had some api that let us just check that the size is
|
|
* supported by the hardware so storage could be allocated
|
|
* lazily when uploading data. */
|
|
if (!cogl_texture_allocate (tex, &skip_error))
|
|
{
|
|
cogl_error_free (skip_error);
|
|
cogl_object_unref (tex);
|
|
tex = NULL;
|
|
}
|
|
}
|
|
else
|
|
tex = NULL;
|
|
|
|
if (!tex)
|
|
{
|
|
/* If it fails resort to sliced textures */
|
|
int max_waste = flags & COGL_TEXTURE_NO_SLICING ? -1 : COGL_TEXTURE_MAX_WASTE;
|
|
tex = COGL_TEXTURE (cogl_texture_2d_sliced_new_with_size (ctx,
|
|
width,
|
|
height,
|
|
max_waste,
|
|
internal_format));
|
|
}
|
|
|
|
if (tex &&
|
|
flags & COGL_TEXTURE_NO_AUTO_MIPMAP)
|
|
{
|
|
/* To be able to iterate the slices of a #CoglTexture2DSliced we
|
|
* need to ensure the texture is allocated... */
|
|
if (!cogl_texture_allocate (tex, NULL))
|
|
return NULL;
|
|
|
|
cogl_meta_texture_foreach_in_region (COGL_META_TEXTURE (tex),
|
|
0, 0, 1, 1,
|
|
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
|
|
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
|
|
set_auto_mipmap_cb,
|
|
NULL);
|
|
}
|
|
|
|
return tex;
|
|
}
|
|
|
|
static CoglTexture *
|
|
_cogl_texture_new_from_data (CoglContext *ctx,
|
|
int width,
|
|
int height,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat format,
|
|
CoglPixelFormat internal_format,
|
|
int rowstride,
|
|
const uint8_t *data,
|
|
CoglError **error)
|
|
{
|
|
CoglBitmap *bmp;
|
|
CoglTexture *tex;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (format != COGL_PIXEL_FORMAT_ANY, NULL);
|
|
_COGL_RETURN_VAL_IF_FAIL (data != NULL, NULL);
|
|
|
|
/* Rowstride from width if not given */
|
|
if (rowstride == 0)
|
|
rowstride = width * _cogl_pixel_format_get_bytes_per_pixel (format);
|
|
|
|
/* Wrap the data into a bitmap */
|
|
bmp = cogl_bitmap_new_for_data (ctx,
|
|
width, height,
|
|
format,
|
|
rowstride,
|
|
(uint8_t *) data);
|
|
|
|
tex = _cogl_texture_new_from_bitmap (bmp,
|
|
flags,
|
|
internal_format,
|
|
FALSE, /* can't convert in place */
|
|
error);
|
|
|
|
cogl_object_unref (bmp);
|
|
|
|
return tex;
|
|
}
|
|
|
|
CoglTexture *
|
|
cogl_texture_new_from_data (int width,
|
|
int height,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat format,
|
|
CoglPixelFormat internal_format,
|
|
int rowstride,
|
|
const uint8_t *data)
|
|
{
|
|
CoglError *ignore_error = NULL;
|
|
CoglTexture *tex;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NULL);
|
|
|
|
tex = _cogl_texture_new_from_data (ctx,
|
|
width, height,
|
|
flags,
|
|
format, internal_format,
|
|
rowstride,
|
|
data,
|
|
&ignore_error);
|
|
if (!tex)
|
|
cogl_error_free (ignore_error);
|
|
return tex;
|
|
}
|
|
|
|
static CoglTexture *
|
|
_cogl_texture_new_from_bitmap (CoglBitmap *bitmap,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format,
|
|
CoglBool can_convert_in_place,
|
|
CoglError **error)
|
|
{
|
|
CoglContext *ctx = _cogl_bitmap_get_context (bitmap);
|
|
CoglAtlasTexture *atlas_tex;
|
|
CoglTexture *tex;
|
|
CoglError *internal_error = NULL;
|
|
|
|
if (!flags &&
|
|
!COGL_DEBUG_ENABLED (COGL_DEBUG_DISABLE_ATLAS))
|
|
{
|
|
/* First try putting the texture in the atlas */
|
|
if ((atlas_tex = _cogl_atlas_texture_new_from_bitmap (bitmap,
|
|
internal_format,
|
|
can_convert_in_place,
|
|
&internal_error)))
|
|
return COGL_TEXTURE (atlas_tex);
|
|
|
|
cogl_error_free (internal_error);
|
|
internal_error = NULL;
|
|
}
|
|
|
|
/* If that doesn't work try a fast path 2D texture */
|
|
if ((_cogl_util_is_pot (bitmap->width) &&
|
|
_cogl_util_is_pot (bitmap->height)) ||
|
|
(cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_BASIC) &&
|
|
cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_MIPMAP)))
|
|
{
|
|
tex = COGL_TEXTURE (_cogl_texture_2d_new_from_bitmap (bitmap,
|
|
internal_format,
|
|
can_convert_in_place,
|
|
&internal_error));
|
|
|
|
if (!tex)
|
|
{
|
|
cogl_error_free (internal_error);
|
|
internal_error = NULL;
|
|
}
|
|
}
|
|
else
|
|
tex = NULL;
|
|
|
|
if (!tex)
|
|
{
|
|
/* Otherwise create a sliced texture */
|
|
int max_waste = flags & COGL_TEXTURE_NO_SLICING ? -1 : COGL_TEXTURE_MAX_WASTE;
|
|
tex = COGL_TEXTURE (_cogl_texture_2d_sliced_new_from_bitmap (bitmap,
|
|
max_waste,
|
|
internal_format,
|
|
can_convert_in_place,
|
|
error));
|
|
}
|
|
|
|
if (tex &&
|
|
flags & COGL_TEXTURE_NO_AUTO_MIPMAP)
|
|
{
|
|
cogl_meta_texture_foreach_in_region (COGL_META_TEXTURE (tex),
|
|
0, 0, 1, 1,
|
|
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
|
|
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE,
|
|
set_auto_mipmap_cb,
|
|
NULL);
|
|
}
|
|
|
|
return tex;
|
|
}
|
|
|
|
CoglTexture *
|
|
cogl_texture_new_from_bitmap (CoglBitmap *bitmap,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format)
|
|
{
|
|
CoglError *ignore_error = NULL;
|
|
CoglTexture *tex =
|
|
_cogl_texture_new_from_bitmap (bitmap,
|
|
flags,
|
|
internal_format,
|
|
FALSE, /* can't convert in-place */
|
|
&ignore_error);
|
|
if (!tex)
|
|
cogl_error_free (ignore_error);
|
|
return tex;
|
|
}
|
|
|
|
CoglTexture *
|
|
cogl_texture_new_from_file (const char *filename,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format,
|
|
CoglError **error)
|
|
{
|
|
CoglBitmap *bmp;
|
|
CoglTexture *texture = NULL;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NULL);
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (error == NULL || *error == NULL, NULL);
|
|
|
|
bmp = cogl_bitmap_new_from_file (filename, error);
|
|
if (bmp == NULL)
|
|
return NULL;
|
|
|
|
texture = _cogl_texture_new_from_bitmap (bmp, flags,
|
|
internal_format,
|
|
TRUE, /* can convert in-place */
|
|
error);
|
|
|
|
cogl_object_unref (bmp);
|
|
|
|
return texture;
|
|
}
|
|
|
|
CoglTexture *
|
|
cogl_texture_new_from_foreign (GLuint gl_handle,
|
|
GLenum gl_target,
|
|
GLuint width,
|
|
GLuint height,
|
|
GLuint x_pot_waste,
|
|
GLuint y_pot_waste,
|
|
CoglPixelFormat format)
|
|
{
|
|
_COGL_GET_CONTEXT (ctx, NULL);
|
|
|
|
#ifdef HAVE_COGL_GL
|
|
if (gl_target == GL_TEXTURE_RECTANGLE_ARB)
|
|
{
|
|
CoglTextureRectangle *texture_rectangle;
|
|
CoglSubTexture *sub_texture;
|
|
|
|
if (x_pot_waste != 0 || y_pot_waste != 0)
|
|
{
|
|
/* It shouldn't be necessary to have waste in this case since
|
|
* the texture isn't limited to power of two sizes. */
|
|
g_warning ("You can't create a foreign GL_TEXTURE_RECTANGLE cogl "
|
|
"texture with waste\n");
|
|
return NULL;
|
|
}
|
|
|
|
texture_rectangle = cogl_texture_rectangle_new_from_foreign (ctx,
|
|
gl_handle,
|
|
width,
|
|
height,
|
|
format,
|
|
NULL);
|
|
|
|
/* CoglTextureRectangle textures work with non-normalized
|
|
* coordinates, but the semantics for this function that people
|
|
* depend on are that all returned texture works with normalized
|
|
* coordinates so we wrap with a CoglSubTexture... */
|
|
sub_texture = cogl_sub_texture_new (ctx,
|
|
COGL_TEXTURE (texture_rectangle),
|
|
0, 0, width, height);
|
|
return COGL_TEXTURE (sub_texture);
|
|
}
|
|
#endif
|
|
|
|
if (x_pot_waste != 0 || y_pot_waste != 0)
|
|
return COGL_TEXTURE (_cogl_texture_2d_sliced_new_from_foreign (ctx,
|
|
gl_handle,
|
|
gl_target,
|
|
width,
|
|
height,
|
|
x_pot_waste,
|
|
y_pot_waste,
|
|
format,
|
|
NULL));
|
|
else
|
|
return COGL_TEXTURE (cogl_texture_2d_new_from_foreign (ctx,
|
|
gl_handle,
|
|
width,
|
|
height,
|
|
format,
|
|
NULL));
|
|
}
|