diff options
| -rw-r--r-- | src/mesa/state_tracker/st_cb_texture.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c index 052035f988..e3a747fa74 100644 --- a/src/mesa/state_tracker/st_cb_texture.c +++ b/src/mesa/state_tracker/st_cb_texture.c @@ -1070,6 +1070,8 @@ texture_face(GLenum target) /** * Do a CopyTexSubImage operation by mapping the source region and * dest region and copying/converting pixels. + * + * Note: srcY=0=TOP of renderbuffer */ static void fallback_copy_texsubimage(GLcontext *ctx, @@ -1093,13 +1095,20 @@ fallback_copy_texsubimage(GLcontext *ctx, dest_surf = pipe->get_tex_surface(pipe, mt, face, level, destZ); + (void) pipe->region_map(pipe, dest_surf->region); + (void) pipe->region_map(pipe, src_surf->region); + data = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); src_surf->get_tile(src_surf, srcX, srcY, width, height, data); - /* process pixels */ + /* Do GL pixel transfer ops here */ + /* Also, invert image if strb orientation is Y_0_TOP */ dest_surf->put_tile(dest_surf, destX, destY, width, height, data); + (void) pipe->region_unmap(pipe, dest_surf->region); + (void) pipe->region_unmap(pipe, src_surf->region); + free(data); } @@ -1109,6 +1118,9 @@ fallback_copy_texsubimage(GLcontext *ctx, /** * Do a CopyTex[Sub]Image using an optimized hardware (blit) path. * Note that the region to copy has already been clip tested. + * + * Note: srcY=0=Bottom of renderbuffer + * * \return GL_TRUE if success, GL_FALSE if failure (use a fallback) */ static void @@ -1151,6 +1163,10 @@ do_copy_texsubimage(GLcontext *ctx, assert(strb->surface); assert(stImage->mt); + if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { + srcY = strb->Base.Height - srcY - height; + } + src_format = strb->surface->format; dest_format = stImage->mt->format; |