diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-05-06 13:47:41 -0600 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-05-06 13:48:27 -0600 |
| commit | 296378b6c8b205048244746e260739448c4ee590 (patch) | |
| tree | 3c3e53ef0e9f47495ce6281633e1ed1324d31859 /src/mesa/state_tracker/st_cb_texture.c | |
| parent | 973d0c014dba87308e358291de0730d38d50a733 (diff) | |
gallium: create drawing surfaces as GPU_READ/WRITE only
Create different temporary surfaces for CPU_READ/WRITE when needed (such as
for glReadPixels, glAccum, some glCopy/DrawPixels, glCopyTexSubImage, etc).
Diffstat (limited to 'src/mesa/state_tracker/st_cb_texture.c')
| -rw-r--r-- | src/mesa/state_tracker/st_cb_texture.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c index f6f833a0db..828b2340f2 100644 --- a/src/mesa/state_tracker/st_cb_texture.c +++ b/src/mesa/state_tracker/st_cb_texture.c @@ -306,6 +306,11 @@ guess_and_alloc_texture(struct st_context *st, depth <<= 1; } + if (width == 0 || height == 0 || depth == 0) { + /* no texture needed */ + return; + } + /* Guess a reasonable value for lastLevel. This is probably going * to be wrong fairly often and might mean that we have to look at * resizable buffers, or require that buffers implement lazy @@ -1059,6 +1064,8 @@ fallback_copy_texsubimage(GLcontext *ctx, } src_surf = strb->surface; + src_surf = screen->get_tex_surface(screen, strb->texture, face, level, destZ, + PIPE_BUFFER_USAGE_CPU_READ); dest_surf = screen->get_tex_surface(screen, pt, face, level, destZ, PIPE_BUFFER_USAGE_CPU_WRITE); @@ -1097,6 +1104,7 @@ fallback_copy_texsubimage(GLcontext *ctx, } screen->tex_surface_release(screen, &dest_surf); + screen->tex_surface_release(screen, &src_surf); } @@ -1164,7 +1172,7 @@ do_copy_texsubimage(GLcontext *ctx, stImage->level, destZ, PIPE_BUFFER_USAGE_CPU_WRITE); - if (ctx->_ImageTransferState == 0x0 && + if (0&& ctx->_ImageTransferState == 0x0 && strb->surface->buffer && dest_surface->buffer) { /* do blit-style copy */ |