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authorBrian Paul <brianp@vmware.com>2012-08-09 20:59:44 -0600
committerBrian Paul <brianp@vmware.com>2012-08-16 09:01:31 -0600
commit25a42f39e362322dbac836c29b76b3104bbfe6f4 (patch)
tree1b7c6806bcb54fb567428f8d5f8dc8bf23c9dfa7
parent348ac08bfdc0741e8b2e14a747e2299c49771ece (diff)
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softpipe: add 'start' parameter to bind_sampler_states/views()
To support updating a sub-range of sampler states/views in the future. Note that we always pass start=0 at this time.
-rw-r--r--src/gallium/drivers/softpipe/sp_state_sampler.c74
1 files changed, 49 insertions, 25 deletions
diff --git a/src/gallium/drivers/softpipe/sp_state_sampler.c b/src/gallium/drivers/softpipe/sp_state_sampler.c
index fe33508a33..0277ef1567 100644
--- a/src/gallium/drivers/softpipe/sp_state_sampler.c
+++ b/src/gallium/drivers/softpipe/sp_state_sampler.c
@@ -66,29 +66,43 @@ softpipe_create_sampler_state(struct pipe_context *pipe,
}
+/**
+ * Bind a range [start, start+num-1] of samplers for a shader stage.
+ */
static void
softpipe_bind_sampler_states(struct pipe_context *pipe,
- unsigned shader, unsigned num, void **sampler)
+ unsigned shader,
+ unsigned start,
+ unsigned num,
+ void **samplers)
{
struct softpipe_context *softpipe = softpipe_context(pipe);
unsigned i;
assert(shader < PIPE_SHADER_TYPES);
- assert(num <= PIPE_MAX_SAMPLERS);
+ assert(start + num <= Elements(softpipe->samplers[shader]));
/* Check for no-op */
- if (num == softpipe->num_samplers[shader] &&
- !memcmp(softpipe->samplers[shader], sampler, num * sizeof(void *)))
+ if (start + num <= softpipe->num_samplers[shader] &&
+ !memcmp(softpipe->samplers[shader] + start, samplers,
+ num * sizeof(void *))) {
return;
+ }
draw_flush(softpipe->draw);
- for (i = 0; i < num; ++i)
- softpipe->samplers[shader][i] = sampler[i];
- for (i = num; i < PIPE_MAX_SAMPLERS; ++i)
- softpipe->samplers[shader][i] = NULL;
+ /* set the new samplers */
+ for (i = 0; i < num; i++) {
+ softpipe->samplers[shader][start + i] = samplers[i];
+ }
- softpipe->num_samplers[shader] = num;
+ /* find highest non-null samplers[] entry */
+ {
+ unsigned j = MAX2(softpipe->num_samplers[shader], start + num);
+ while (j > 0 && softpipe->samplers[shader][j - 1] == NULL)
+ j--;
+ softpipe->num_samplers[shader] = j;
+ }
if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
draw_set_samplers(softpipe->draw,
@@ -106,7 +120,7 @@ static void
softpipe_bind_fragment_sampler_states(struct pipe_context *pipe,
unsigned num, void **samplers)
{
- softpipe_bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT, num, samplers);
+ softpipe_bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT, 0, num, samplers);
}
@@ -115,7 +129,7 @@ softpipe_bind_vertex_sampler_states(struct pipe_context *pipe,
unsigned num,
void **samplers)
{
- softpipe_bind_sampler_states(pipe, PIPE_SHADER_VERTEX, num, samplers);
+ softpipe_bind_sampler_states(pipe, PIPE_SHADER_VERTEX, 0, num, samplers);
}
@@ -124,7 +138,7 @@ softpipe_bind_geometry_sampler_states(struct pipe_context *pipe,
unsigned num,
void **samplers)
{
- softpipe_bind_sampler_states(pipe, PIPE_SHADER_GEOMETRY, num, samplers);
+ softpipe_bind_sampler_states(pipe, PIPE_SHADER_GEOMETRY, 0, num, samplers);
}
@@ -159,30 +173,40 @@ softpipe_sampler_view_destroy(struct pipe_context *pipe,
static void
softpipe_set_sampler_views(struct pipe_context *pipe,
unsigned shader,
+ unsigned start,
unsigned num,
struct pipe_sampler_view **views)
{
struct softpipe_context *softpipe = softpipe_context(pipe);
uint i;
- assert(num <= PIPE_MAX_SAMPLERS);
+ assert(shader < PIPE_SHADER_TYPES);
+ assert(start + num <= Elements(softpipe->sampler_views[shader]));
/* Check for no-op */
- if (num == softpipe->num_sampler_views[shader] &&
- !memcmp(softpipe->sampler_views[shader], views,
- num * sizeof(struct pipe_sampler_view *)))
+ if (start + num <= softpipe->num_sampler_views[shader] &&
+ !memcmp(softpipe->sampler_views[shader] + start, views,
+ num * sizeof(struct pipe_sampler_view *))) {
return;
+ }
draw_flush(softpipe->draw);
- for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
- struct pipe_sampler_view *view = i < num ? views[i] : NULL;
-
- pipe_sampler_view_reference(&softpipe->sampler_views[shader][i], view);
- sp_tex_tile_cache_set_sampler_view(softpipe->tex_cache[shader][i], view);
+ /* set the new sampler views */
+ for (i = 0; i < num; i++) {
+ pipe_sampler_view_reference(&softpipe->sampler_views[shader][start + i],
+ views[i]);
+ sp_tex_tile_cache_set_sampler_view(softpipe->tex_cache[shader][start + i],
+ views[i]);
}
- softpipe->num_sampler_views[shader] = num;
+ /* find highest non-null sampler_views[] entry */
+ {
+ unsigned j = MAX2(softpipe->num_sampler_views[shader], start + num);
+ while (j > 0 && softpipe->sampler_views[shader][j - 1] == NULL)
+ j--;
+ softpipe->num_sampler_views[shader] = j;
+ }
if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
draw_set_sampler_views(softpipe->draw,
@@ -200,7 +224,7 @@ softpipe_set_fragment_sampler_views(struct pipe_context *pipe,
unsigned num,
struct pipe_sampler_view **views)
{
- softpipe_set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, num, views);
+ softpipe_set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0, num, views);
}
@@ -209,7 +233,7 @@ softpipe_set_vertex_sampler_views(struct pipe_context *pipe,
unsigned num,
struct pipe_sampler_view **views)
{
- softpipe_set_sampler_views(pipe, PIPE_SHADER_VERTEX, num, views);
+ softpipe_set_sampler_views(pipe, PIPE_SHADER_VERTEX, 0, num, views);
}
@@ -218,7 +242,7 @@ softpipe_set_geometry_sampler_views(struct pipe_context *pipe,
unsigned num,
struct pipe_sampler_view **views)
{
- softpipe_set_sampler_views(pipe, PIPE_SHADER_GEOMETRY, num, views);
+ softpipe_set_sampler_views(pipe, PIPE_SHADER_GEOMETRY, 0, num, views);
}