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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/pbo.h"
#include "main/texobj.h"
#include "main/texstore.h"
#include "main/texcompress.h"
#include "main/enums.h"
#include "intel_context.h"
#include "intel_tex.h"
#include "intel_mipmap_tree.h"
#include "intel_blit.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
static bool
intel_blit_texsubimage(struct gl_context * ctx,
struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset,
GLint width, GLint height,
GLenum format, GLenum type, const void *pixels,
const struct gl_pixelstore_attrib *packing)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_image *intelImage = intel_texture_image(texImage);
GLuint dstRowStride = 0;
drm_intel_bo *temp_bo = NULL;
unsigned int blit_x = 0, blit_y = 0;
unsigned long pitch;
uint32_t tiling_mode = I915_TILING_NONE;
GLubyte *dstMap;
/* Try to do a blit upload of the subimage if the texture is
* currently busy.
*/
if (!intelImage->mt)
return false;
/* The blitter can't handle Y tiling */
if (intelImage->mt->region->tiling == I915_TILING_Y)
return false;
if (texImage->TexObject->Target != GL_TEXTURE_2D)
return false;
/* On gen6, it's probably not worth swapping to the blit ring to do
* this because of all the overhead involved.
*/
if (intel->gen >= 6)
return false;
if (!drm_intel_bo_busy(intelImage->mt->region->bo))
return false;
DBG("BLT subimage %s target %s level %d offset %d,%d %dx%d\n",
__FUNCTION__,
_mesa_lookup_enum_by_nr(texImage->TexObject->Target),
texImage->Level, xoffset, yoffset, width, height);
pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1,
format, type, pixels, packing,
"glTexSubImage");
if (!pixels)
return false;
temp_bo = drm_intel_bo_alloc_tiled(intel->bufmgr,
"subimage blit bo",
width, height,
intelImage->mt->cpp,
&tiling_mode,
&pitch,
0);
if (temp_bo == NULL) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
return false;
}
if (drm_intel_gem_bo_map_gtt(temp_bo)) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
return false;
}
dstMap = temp_bo->virtual;
dstRowStride = pitch;
intel_miptree_get_image_offset(intelImage->mt, texImage->Level,
intelImage->base.Base.Face, 0,
&blit_x, &blit_y);
blit_x += xoffset;
blit_y += yoffset;
if (!_mesa_texstore(ctx, 2, texImage->_BaseFormat,
texImage->TexFormat,
0, 0, 0, /* x, y, z offset in dest buffer */
dstRowStride,
&dstMap,
width, height, 1,
format, type, pixels, packing)) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
}
bool ret;
unsigned int dst_pitch = intelImage->mt->region->pitch *
intelImage->mt->cpp;
drm_intel_gem_bo_unmap_gtt(temp_bo);
ret = intelEmitCopyBlit(intel,
intelImage->mt->cpp,
dstRowStride / intelImage->mt->cpp,
temp_bo, 0, false,
dst_pitch / intelImage->mt->cpp,
intelImage->mt->region->bo, 0,
intelImage->mt->region->tiling,
0, 0, blit_x, blit_y, width, height,
GL_COPY);
assert(ret);
drm_intel_bo_unreference(temp_bo);
_mesa_unmap_teximage_pbo(ctx, packing);
return true;
}
static void
intelTexSubImage2D(struct gl_context * ctx,
struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLenum format, GLenum type,
const GLvoid * pixels,
const struct gl_pixelstore_attrib *packing)
{
if (!intel_blit_texsubimage(ctx, texImage,
xoffset, yoffset,
width, height,
format, type, pixels, packing)) {
_mesa_store_texsubimage2d(ctx, texImage,
xoffset, yoffset,
width, height,
format, type, pixels, packing);
}
}
void
intelInitTextureSubImageFuncs(struct dd_function_table *functions)
{
functions->TexSubImage2D = intelTexSubImage2D;
}
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