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authorFrancisco Jerez <[email protected]>2010-10-22 13:43:57 +0200
committerFrancisco Jerez <[email protected]>2010-10-22 13:43:57 +0200
commita00eec529562532031370b25f5941a916d5399ab (patch)
treebf7e46b901fd074dc3e214fa525941dd415bccb1 /src/mesa/drivers
parent25328509c90dc205b9561b5265e478af2873438b (diff)
dri/nouveau: Force a "slow" Z clear if we're getting a new depth buffer.
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r--src/mesa/drivers/dri/nouveau/nouveau_context.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_context.c b/src/mesa/drivers/dri/nouveau/nouveau_context.c
index d3e2c0df6c4..0ace139b886 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_context.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_context.c
@@ -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);