mirror of
https://github.com/brl/mutter.git
synced 2024-12-25 04:22:05 +00:00
0850eea162
This moves the _cogl_texture_get_gl_format function from cogl-texture.c to cogl-texture-gl.c and renames it _cogl_texture_gl_get_format. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit f8deec01eff7d8d9900b509048cf1ff1c86ca879)
144 lines
4.5 KiB
C
144 lines
4.5 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/>.
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <strings.h>
|
|
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-util-gl-private.h"
|
|
#include "cogl-texture-gl-private.h"
|
|
#include "cogl-texture-3d-private.h"
|
|
#include "cogl-util.h"
|
|
#include "cogl-pipeline-opengl-private.h"
|
|
|
|
static inline int
|
|
calculate_alignment (int rowstride)
|
|
{
|
|
int alignment = 1 << (_cogl_util_ffs (rowstride) - 1);
|
|
|
|
return MIN (alignment, 8);
|
|
}
|
|
|
|
void
|
|
_cogl_texture_gl_prep_alignment_for_pixels_upload (CoglContext *ctx,
|
|
int pixels_rowstride)
|
|
{
|
|
GE( ctx, glPixelStorei (GL_UNPACK_ALIGNMENT,
|
|
calculate_alignment (pixels_rowstride)) );
|
|
}
|
|
|
|
void
|
|
_cogl_texture_gl_prep_alignment_for_pixels_download (CoglContext *ctx,
|
|
int bpp,
|
|
int width,
|
|
int rowstride)
|
|
{
|
|
int alignment;
|
|
|
|
/* If no padding is needed then we can always use an alignment of 1.
|
|
* We want to do this even though it is equivalent to the alignment
|
|
* of the rowstride because the Intel driver in Mesa currently has
|
|
* an optimisation when reading data into a PBO that only works if
|
|
* the alignment is exactly 1.
|
|
*
|
|
* https://bugs.freedesktop.org/show_bug.cgi?id=46632
|
|
*/
|
|
|
|
if (rowstride == bpp * width)
|
|
alignment = 1;
|
|
else
|
|
alignment = calculate_alignment (rowstride);
|
|
|
|
GE( ctx, glPixelStorei (GL_PACK_ALIGNMENT, alignment) );
|
|
}
|
|
|
|
void
|
|
_cogl_texture_gl_flush_legacy_texobj_wrap_modes (CoglTexture *texture,
|
|
unsigned int wrap_mode_s,
|
|
unsigned int wrap_mode_t,
|
|
unsigned int wrap_mode_p)
|
|
{
|
|
texture->vtable->gl_flush_legacy_texobj_wrap_modes (texture,
|
|
wrap_mode_s,
|
|
wrap_mode_t,
|
|
wrap_mode_p);
|
|
}
|
|
|
|
void
|
|
_cogl_texture_gl_flush_legacy_texobj_filters (CoglTexture *texture,
|
|
unsigned int min_filter,
|
|
unsigned int mag_filter)
|
|
{
|
|
texture->vtable->gl_flush_legacy_texobj_filters (texture,
|
|
min_filter, mag_filter);
|
|
}
|
|
|
|
void
|
|
_cogl_texture_gl_maybe_update_max_level (CoglTexture *texture,
|
|
int max_level)
|
|
{
|
|
if (texture->max_level < max_level)
|
|
{
|
|
CoglContext *ctx = texture->context;
|
|
GLuint gl_handle;
|
|
GLenum gl_target;
|
|
|
|
cogl_texture_get_gl_texture (texture, &gl_handle, &gl_target);
|
|
|
|
texture->max_level = max_level;
|
|
|
|
_cogl_bind_gl_texture_transient (gl_target,
|
|
gl_handle,
|
|
_cogl_texture_is_foreign (texture));
|
|
|
|
GE( ctx, glTexParameteri (gl_target,
|
|
GL_TEXTURE_MAX_LEVEL, texture->max_level));
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_texture_gl_generate_mipmaps (CoglTexture *texture)
|
|
{
|
|
CoglContext *ctx = texture->context;
|
|
int n_levels = _cogl_texture_get_n_levels (texture);
|
|
GLuint gl_handle;
|
|
GLenum gl_target;
|
|
|
|
_cogl_texture_gl_maybe_update_max_level (texture, n_levels - 1);
|
|
|
|
cogl_texture_get_gl_texture (texture, &gl_handle, &gl_target);
|
|
|
|
_cogl_bind_gl_texture_transient (gl_target,
|
|
gl_handle,
|
|
_cogl_texture_is_foreign (texture));
|
|
GE( ctx, glGenerateMipmap (gl_target) );
|
|
}
|
|
|
|
GLenum
|
|
_cogl_texture_gl_get_format (CoglTexture *texture)
|
|
{
|
|
return texture->vtable->get_gl_format (texture);
|
|
}
|