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authorMarek Olšák <maraeo@gmail.com>2012-04-24 22:53:05 +0200
committerMarek Olšák <maraeo@gmail.com>2012-04-30 01:18:48 +0200
commit0b7d48cbad86eaac21fce3793da41b46db8be3b4 (patch)
tree437f5cfeb3a77278d29e384b47dfaef9b96faa75 /src/gallium/drivers/nvc0
parent01bf5569c44389c1127bbb9e873c8a234ac92ff7 (diff)
gallium: add void *user_buffer to pipe_constant_buffer
This reduces CPU overhead when updating constants.
Diffstat (limited to 'src/gallium/drivers/nvc0')
-rw-r--r--src/gallium/drivers/nvc0/nvc0_state.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_state.c b/src/gallium/drivers/nvc0/nvc0_state.c
index 9b1ae550fff..40161252a3d 100644
--- a/src/gallium/drivers/nvc0/nvc0_state.c
+++ b/src/gallium/drivers/nvc0/nvc0_state.c
@@ -621,6 +621,12 @@ nvc0_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
struct nvc0_context *nvc0 = nvc0_context(pipe);
struct pipe_resource *res = cb ? cb->buffer : NULL;
+ if (cb && cb->user_buffer) {
+ res = nouveau_user_buffer_create(pipe->screen, cb->user_buffer,
+ cb->buffer_size,
+ PIPE_BIND_CONSTANT_BUFFER);
+ }
+
switch (shader) {
case PIPE_SHADER_VERTEX: shader = 0; break;
/*
@@ -642,6 +648,10 @@ nvc0_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
nvc0->constbuf_dirty[shader] |= 1 << index;
nvc0->dirty |= NVC0_NEW_CONSTBUF;
+
+ if (cb->user_buffer) {
+ pipe_resource_reference(&res, NULL);
+ }
}
/* =============================================================================