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/*
* Copyright (C) 2009 Maciej Cencora <m.cencora@gmail.com>
*
* 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, 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.h"
#include "radeon_texture.h"
#include "main/enums.h"
#include "main/image.h"
#include "main/teximage.h"
#include "main/texstate.h"
#include "drivers/common/meta.h"
#include "radeon_mipmap_tree.h"
static GLboolean
do_copy_texsubimage(struct gl_context *ctx,
GLenum target, GLint level,
struct radeon_tex_obj *tobj,
radeon_texture_image *timg,
GLint dstx, GLint dsty,
GLint x, GLint y,
GLsizei width, GLsizei height)
{
radeonContextPtr radeon = RADEON_CONTEXT(ctx);
struct radeon_renderbuffer *rrb;
unsigned src_bpp;
unsigned dst_bpp;
gl_format src_mesaformat;
gl_format dst_mesaformat;
unsigned flip_y;
if (!radeon->vtbl.blit) {
return GL_FALSE;
}
if (_mesa_get_format_bits(timg->base.Base.TexFormat, GL_DEPTH_BITS) > 0) {
/* copying a depth values */
rrb = radeon_renderbuffer(ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer);
assert(rrb);
flip_y = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Type == GL_NONE;
} else {
/* copying color */
rrb = radeon_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer);
flip_y = ctx->ReadBuffer->Attachment[BUFFER_COLOR0].Type == GL_NONE;
}
// This is software renderbuffer, fallback to swrast
if (!rrb) {
return GL_FALSE;
}
if (!timg->mt) {
radeon_validate_texture_miptree(ctx, &tobj->base);
}
assert(rrb->bo);
assert(timg->mt);
assert(timg->mt->bo);
assert(timg->base.Base.Width >= dstx + width);
assert(timg->base.Base.Height >= dsty + height);
intptr_t src_offset = rrb->draw_offset;
intptr_t dst_offset = radeon_miptree_image_offset(timg->mt, _mesa_tex_target_to_face(target), level);
if (0) {
fprintf(stderr, "%s: copying to face %d, level %d\n",
__FUNCTION__, _mesa_tex_target_to_face(target), level);
fprintf(stderr, "to: x %d, y %d, offset %d\n", dstx, dsty, (uint32_t) dst_offset);
fprintf(stderr, "from (%dx%d) width %d, height %d, offset %d, pitch %d\n",
x, y, rrb->base.Width, rrb->base.Height, (uint32_t) src_offset, rrb->pitch/rrb->cpp);
fprintf(stderr, "src size %d, dst size %d\n", rrb->bo->size, timg->mt->bo->size);
}
src_mesaformat = rrb->base.Format;
dst_mesaformat = timg->base.Base.TexFormat;
src_bpp = _mesa_get_format_bytes(src_mesaformat);
dst_bpp = _mesa_get_format_bytes(dst_mesaformat);
if (!radeon->vtbl.check_blit(dst_mesaformat, rrb->pitch / rrb->cpp)) {
/* depth formats tend to be special */
if (_mesa_get_format_bits(dst_mesaformat, GL_DEPTH_BITS) > 0)
return GL_FALSE;
if (src_bpp != dst_bpp)
return GL_FALSE;
switch (dst_bpp) {
case 2:
src_mesaformat = MESA_FORMAT_RGB565;
dst_mesaformat = MESA_FORMAT_RGB565;
break;
case 4:
src_mesaformat = MESA_FORMAT_ARGB8888;
dst_mesaformat = MESA_FORMAT_ARGB8888;
break;
case 1:
src_mesaformat = MESA_FORMAT_A8;
dst_mesaformat = MESA_FORMAT_A8;
break;
default:
return GL_FALSE;
}
}
/* blit from src buffer to texture */
return radeon->vtbl.blit(ctx, rrb->bo, src_offset, src_mesaformat, rrb->pitch/rrb->cpp,
rrb->base.Width, rrb->base.Height, x, y,
timg->mt->bo, dst_offset, dst_mesaformat,
timg->mt->levels[level].rowstride / dst_bpp,
timg->base.Base.Width, timg->base.Base.Height,
dstx, dsty, width, height, flip_y);
}
void
radeonCopyTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLint x, GLint y,
GLsizei width, GLsizei height)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj = _mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage = _mesa_select_tex_image(ctx, texObj, target, level);
radeonContextPtr radeon = RADEON_CONTEXT(ctx);
radeon_prepare_render(radeon);
if (!do_copy_texsubimage(ctx, target, level,
radeon_tex_obj(texObj), (radeon_texture_image *)texImage,
xoffset, yoffset, x, y, width, height)) {
radeon_print(RADEON_FALLBACKS, RADEON_NORMAL,
"Falling back to sw for glCopyTexSubImage2D\n");
_mesa_meta_CopyTexSubImage2D(ctx, target, level,
xoffset, yoffset, x, y, width, height);
}
}
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