uint32_t get_base_teximage_offset(radeonTexObj *texObj)
{
if (!texObj->mt) {
return 0;
} else {
return radeon_miptree_image_offset(texObj->mt, 0, texObj->minLod);
}
}
static GLboolean
do_copy_texsubimage(GLcontext *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 src_width;
unsigned dst_width;
unsigned flip_y;
if (!radeon->vtbl.blit) {
return GL_FALSE;
}
if (_mesa_get_format_bits(timg->base.TexFormat, GL_DEPTH_BITS) > 0) {
if (ctx->ReadBuffer->_DepthBuffer && ctx->ReadBuffer->_DepthBuffer->Wrapped) {
rrb = radeon_renderbuffer(ctx->ReadBuffer->_DepthBuffer->Wrapped);
} else {
rrb = radeon_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
}
flip_y = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Type == GL_NONE;
} else {
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.Width >= dstx + width);
assert(timg->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.TexFormat;
src_width = rrb->base.Width;
dst_width = timg->base.Width;
src_bpp = _mesa_get_format_bytes(src_mesaformat);
dst_bpp = _mesa_get_format_bytes(dst_mesaformat);
if (!radeon->vtbl.check_blit(dst_mesaformat)) {
/* 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,
src_width, rrb->base.Height, x, y,
timg->mt->bo, dst_offset, dst_mesaformat,
timg->mt->levels[level].rowstride / dst_bpp,
dst_width, timg->base.Height,
dstx, dsty, width, height, flip_y);
}
static void
radeon_render_texture(struct gl_context * ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct gl_texture_image *newImage
= att->Texture->Image[att->CubeMapFace][att->TextureLevel];
struct radeon_renderbuffer *rrb = radeon_renderbuffer(att->Renderbuffer);
radeon_texture_image *radeon_image;
GLuint imageOffset;
radeon_print(RADEON_TEXTURE, RADEON_TRACE,
"%s(%p, fb %p, rrb %p, att %p)\n",
__func__, ctx, fb, rrb, att);
(void) fb;
ASSERT(newImage);
radeon_image = (radeon_texture_image *)newImage;
if (!radeon_image->mt || newImage->Border != 0) {
/* Fallback on drawing to a texture without a miptree.
*/
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
else if (!rrb) {
rrb = radeon_wrap_texture(ctx, newImage);
if (rrb) {
/* bind the wrapper to the attachment point */
_mesa_reference_renderbuffer(&att->Renderbuffer, &rrb->base);
}
else {
/* fallback to software rendering */
_mesa_render_texture(ctx, fb, att);
return;
}
}
if (!radeon_update_wrapper(ctx, rrb, newImage)) {
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
DBG("Begin render texture tid %lx tex=%u w=%d h=%d refcount=%d\n",
_glthread_GetID(),
att->Texture->Name, newImage->Width, newImage->Height,
rrb->base.RefCount);
/* point the renderbufer's region to the texture image region */
if (rrb->bo != radeon_image->mt->bo) {
if (rrb->bo)
radeon_bo_unref(rrb->bo);
rrb->bo = radeon_image->mt->bo;
radeon_bo_ref(rrb->bo);
}
/* compute offset of the particular 2D image within the texture region */
imageOffset = radeon_miptree_image_offset(radeon_image->mt,
att->CubeMapFace,
att->TextureLevel);
if (att->Texture->Target == GL_TEXTURE_3D) {
imageOffset += radeon_image->mt->levels[att->TextureLevel].rowstride *
radeon_image->mt->levels[att->TextureLevel].height *
att->Zoffset;
}
/* store that offset in the region, along with the correct pitch for
* the image we are rendering to */
rrb->draw_offset = imageOffset;
rrb->pitch = radeon_image->mt->levels[att->TextureLevel].rowstride;
/* update drawing region, etc */
radeon_draw_buffer(ctx, fb);
}