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gallium: fix lack of surface reference counting in cso_set/save/restore_framebuffer()

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Fixes asst problems with FBO / render to texture.
This commit is contained in:
Brian Paul 2008-09-17 09:47:51 -06:00
parent 0d20c88f62
commit f10e7f0d28
1 changed files with 21 additions and 3 deletions
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24
src/gallium/auxiliary/cso_cache/cso_context.c
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@ -765,12 +765,30 @@ void cso_restore_vertex_shader(struct cso_context *ctx)
}
/**
* Copy framebuffer state from src to dst with refcounting of surfaces.
*/
static void
copy_framebuffer_state(struct pipe_framebuffer_state *dst,
const struct pipe_framebuffer_state *src)
{
uint i;
dst->width = src->width;
dst->height = src->height;
dst->num_cbufs = src->num_cbufs;
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&dst->cbufs[i], src->cbufs[i]);
}
pipe_surface_reference(&dst->zsbuf, src->zsbuf);
}
enum pipe_error cso_set_framebuffer(struct cso_context *ctx,
const struct pipe_framebuffer_state *fb)
{
if (memcmp(&ctx->fb, fb, sizeof(*fb)) != 0) {
ctx->fb = *fb;
copy_framebuffer_state(&ctx->fb, fb);
ctx->pipe->set_framebuffer_state(ctx->pipe, fb);
}
return PIPE_OK;
@ -778,13 +796,13 @@ enum pipe_error cso_set_framebuffer(struct cso_context *ctx,
void cso_save_framebuffer(struct cso_context *ctx)
{
ctx->fb_saved = ctx->fb;
copy_framebuffer_state(&ctx->fb_saved, &ctx->fb);
}
void cso_restore_framebuffer(struct cso_context *ctx)
{
if (memcmp(&ctx->fb, &ctx->fb_saved, sizeof(ctx->fb))) {
ctx->fb = ctx->fb_saved;
copy_framebuffer_state(&ctx->fb, &ctx->fb_saved);
ctx->pipe->set_framebuffer_state(ctx->pipe, &ctx->fb);
}
}