cbd6951134
This introduces the internal idea of texture loaders that track the
state for loading and allocating a texture. This defers a lot more work
until the texture is allocated.
There are several intentions to this change:
- provides a means for extending how textures are allocated without
requiring all the parameters to be supplied in a single _texture_new()
function call.
- allow us to remove the internal_format argument from all
_texture_new() apis since using CoglPixelFormat is bad way of
expressing the internal format constraints because it is too specific.
For now the internal_format arguments haven't actually been removed
but this patch does introduce replacement apis for controlling the
internal format:
cogl_texture_set_components() lets you specify what components your
texture needs when it is allocated.
cogl_texture_set_premultiplied() lets you specify whether a texture
data should be interpreted as premultiplied or not.
- Enable us to support asynchronous texture loading + allocation in the
future.
Of note, the _new_from_data() texture constructors all continue to
allocate textures immediately so that existing code doesn't need to be
adapted to manage the lifetime of the data being uploaded.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 6a83de9ef4210f380a31f410797447b365a8d02c)
Note: Compared to the original patch, the ->premultipled state for
textures isn't forced to be %TRUE in _cogl_texture_init since that
effectively ignores the users explicitly given internal_format which was
a mistake and on master that change should have been made in the patch
that followed. The gtk-doc comments for cogl_texture_set_premultiplied()
and cogl_texture_set_components() have also been updated in-line with
this fix.
98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2012 Intel Corporation.
|
|
*
|
|
* 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:
|
|
* Robert Bragg <robert@linux.intel.com>
|
|
*/
|
|
|
|
#ifndef _COGL_TEXTURE_2D_NOP_PRIVATE_H_
|
|
#define _COGL_TEXTURE_2D_NOP_PRIVATE_H_
|
|
|
|
#include "cogl-types.h"
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-texture.h"
|
|
|
|
void
|
|
_cogl_texture_2d_nop_free (CoglTexture2D *tex_2d);
|
|
|
|
CoglBool
|
|
_cogl_texture_2d_nop_can_create (CoglContext *ctx,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat internal_format);
|
|
|
|
void
|
|
_cogl_texture_2d_nop_init (CoglTexture2D *tex_2d);
|
|
|
|
CoglBool
|
|
_cogl_texture_2d_nop_allocate (CoglTexture *tex,
|
|
CoglError **error);
|
|
|
|
void
|
|
_cogl_texture_2d_nop_flush_legacy_texobj_filters (CoglTexture *tex,
|
|
GLenum min_filter,
|
|
GLenum mag_filter);
|
|
|
|
void
|
|
_cogl_texture_2d_nop_flush_legacy_texobj_wrap_modes (CoglTexture *tex,
|
|
GLenum wrap_mode_s,
|
|
GLenum wrap_mode_t,
|
|
GLenum wrap_mode_p);
|
|
|
|
void
|
|
_cogl_texture_2d_nop_copy_from_framebuffer (CoglTexture2D *tex_2d,
|
|
int src_x,
|
|
int src_y,
|
|
int width,
|
|
int height,
|
|
CoglFramebuffer *src_fb,
|
|
int dst_x,
|
|
int dst_y,
|
|
int level);
|
|
|
|
unsigned int
|
|
_cogl_texture_2d_nop_get_gl_handle (CoglTexture2D *tex_2d);
|
|
|
|
void
|
|
_cogl_texture_2d_nop_generate_mipmap (CoglTexture2D *tex_2d);
|
|
|
|
CoglBool
|
|
_cogl_texture_2d_nop_copy_from_bitmap (CoglTexture2D *tex_2d,
|
|
int src_x,
|
|
int src_y,
|
|
int width,
|
|
int height,
|
|
CoglBitmap *bitmap,
|
|
int dst_x,
|
|
int dst_y,
|
|
int level,
|
|
CoglError **error);
|
|
|
|
void
|
|
_cogl_texture_2d_nop_get_data (CoglTexture2D *tex_2d,
|
|
CoglPixelFormat format,
|
|
size_t rowstride,
|
|
uint8_t *data);
|
|
|
|
#endif /* _COGL_TEXTURE_2D_NOP_PRIVATE_H_ */
|