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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS 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 "main/mtypes.h"
#include "main/enums.h"
#include "main/image.h"
#include "main/teximage.h"
#include "main/texstate.h"
#include "main/fbobject.h"
#include "drivers/common/meta.h"
#include "intel_screen.h"
#include "intel_context.h"
#include "intel_mipmap_tree.h"
#include "intel_regions.h"
#include "intel_fbo.h"
#include "intel_tex.h"
#include "intel_blit.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
static bool
intel_copy_texsubimage(struct intel_context *intel,
struct intel_texture_image *intelImage,
GLint dstx, GLint dsty, GLint slice,
struct intel_renderbuffer *irb,
GLint x, GLint y, GLsizei width, GLsizei height)
{
const GLenum internalFormat = intelImage->base.Base.InternalFormat;
intel_prepare_render(intel);
if (!intelImage->mt || !irb || !irb->mt) {
if (unlikely(INTEL_DEBUG & DEBUG_PERF))
fprintf(stderr, "%s fail %p %p (0x%08x)\n",
__FUNCTION__, intelImage->mt, irb, internalFormat);
return false;
}
/* blit from src buffer to texture */
if (!intel_miptree_blit(intel,
irb->mt, irb->mt_level, irb->mt_layer,
x, y, irb->Base.Base.Name == 0,
intelImage->mt, intelImage->base.Base.Level,
intelImage->base.Base.Face + slice,
dstx, dsty, false,
width, height, GL_COPY)) {
return false;
}
return true;
}
static void
intelCopyTexSubImage(struct gl_context *ctx, GLuint dims,
struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset, GLint slice,
struct gl_renderbuffer *rb,
GLint x, GLint y,
GLsizei width, GLsizei height)
{
struct intel_context *intel = intel_context(ctx);
/* Try the BLT engine. */
if (intel_copy_texsubimage(intel,
intel_texture_image(texImage),
xoffset, yoffset, slice,
intel_renderbuffer(rb), x, y, width, height)) {
return;
}
/* Otherwise, fall back to meta. This will likely be slow. */
perf_debug("%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexSubImage(ctx, dims, texImage,
xoffset, yoffset, slice,
rb, x, y, width, height);
}
void
intelInitTextureCopyImageFuncs(struct dd_function_table *functions)
{
functions->CopyTexSubImage = intelCopyTexSubImage;
}
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