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/*
* Copyright (C) 2009 Maciej Cencora.
* Copyright (C) 2008 Nicolai Haehnle.
* Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
*
* The Weather Channel (TM) funded Tungsten Graphics to develop the
* initial release of the Radeon 8500 driver under the XFree86 license.
* This notice must be preserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "radeon_common_context.h"
#include "radeon_texture.h"
#include "main/texgetimage.h"
/**
* Need to map texture image into memory before copying image data,
* then unmap it.
*/
static void
radeon_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
GLenum format, GLenum type, GLvoid * pixels,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage, int compressed)
{
radeon_texture_image *image = get_radeon_texture_image(texImage);
radeon_print(RADEON_TEXTURE, RADEON_NORMAL,
"%s(%p, tex %p, image %p) compressed %d.\n",
__func__, ctx, texObj, image, compressed);
if (image->mt) {
/* Map the texture image read-only */
radeon_teximage_map(image, GL_FALSE);
} else {
/* Image hasn't been uploaded to a miptree yet */
assert(image->base.Data);
}
if (compressed) {
/* FIXME: this can't work for small textures (mips) which
use different hw stride */
_mesa_get_compressed_teximage(ctx, target, level, pixels,
texObj, texImage);
} else {
_mesa_get_teximage(ctx, target, level, format, type, pixels,
texObj, texImage);
}
if (image->mt) {
radeon_teximage_unmap(image);
}
}
void
radeonGetTexImage(GLcontext * ctx, GLenum target, GLint level,
GLenum format, GLenum type, GLvoid * pixels,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
radeon_get_tex_image(ctx, target, level, format, type, pixels,
texObj, texImage, 0);
}
void
radeonGetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
GLvoid *pixels,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
radeon_get_tex_image(ctx, target, level, 0, 0, pixels,
texObj, texImage, 1);
}
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