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dri/nouveau: Force a "slow" Z clear if we're getting a new depth buffer.

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This commit is contained in:
Francisco Jerez 2010-10-22 13:43:57 +02:00
parent 25328509c9
commit a00eec5295
1 changed files with 12 additions and 0 deletions
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12
src/mesa/drivers/dri/nouveau/nouveau_context.c
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@ -180,6 +180,7 @@ void
nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw)
{
struct gl_context *ctx = dri_ctx->driverPrivate;
struct nouveau_context *nctx = to_nouveau_context(ctx);
__DRIscreen *screen = dri_ctx->driScreenPriv;
struct gl_framebuffer *fb = draw->driverPrivate;
struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb);
@ -211,6 +212,7 @@ nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw)
for (i = 0; i < count; i++) {
struct gl_renderbuffer *rb;
struct nouveau_surface *s;
uint32_t old_name;
int index;
switch (buffers[i].attachment) {
@ -240,6 +242,16 @@ nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw)
s->pitch = buffers[i].pitch;
s->cpp = buffers[i].cpp;
if (index == BUFFER_DEPTH && s->bo) {
ret = nouveau_bo_handle_get(s->bo, &old_name);
/*
* Disable fast Z clears in the next frame, the
* depth buffer contents are undefined.
*/
if (!ret && old_name != buffers[i].name)
nctx->hierz.clear_seq = 0;
}
nouveau_bo_ref(NULL, &s->bo);
ret = nouveau_bo_handle_ref(context_dev(ctx),
buffers[i].name, &s->bo);