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gallium/u_threaded: add a null constant buffer codepath

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This consumes less space in the batch buffer.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8298>
This commit is contained in:
Marek Olšák 2020-12-12 16:02:49 -05:00 • committed by Marge Bot
parent ccf9ef3628
commit dcc94af6b1
1 changed files with 36 additions and 19 deletions
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55
src/gallium/auxiliary/util/u_threaded_context.c
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@ -764,8 +764,13 @@ tc_set_tess_state(struct pipe_context *_pipe,
memcpy(p + 4, default_inner_level, 2 * sizeof(float));
}
struct tc_constant_buffer {
struct tc_constant_buffer_info {
ubyte shader, index;
bool is_null;
};
struct tc_constant_buffer {
struct tc_constant_buffer_info info;
struct pipe_constant_buffer cb;
};
@ -774,7 +779,12 @@ tc_call_set_constant_buffer(struct pipe_context *pipe, union tc_payload *payload
{
struct tc_constant_buffer *p = (struct tc_constant_buffer *)payload;
pipe->set_constant_buffer(pipe, p->shader, p->index, true, &p->cb);
if (unlikely(p->info.is_null)) {
pipe->set_constant_buffer(pipe, p->info.shader, p->info.index, false, NULL);
return;
}
pipe->set_constant_buffer(pipe, p->info.shader, p->info.index, true, &p->cb);
}
static void
@ -785,7 +795,17 @@ tc_set_constant_buffer(struct pipe_context *_pipe,
{
struct threaded_context *tc = threaded_context(_pipe);
if (cb && cb->user_buffer) {
if (unlikely(!cb || (!cb->buffer && !cb->user_buffer))) {
struct tc_constant_buffer_info *p =
tc_add_struct_typed_call(tc, TC_CALL_set_constant_buffer,
tc_constant_buffer_info);
p->shader = shader;
p->index = index;
p->is_null = true;
return;
}
if (cb->user_buffer) {
struct pipe_resource *buffer = NULL;
unsigned offset;
@ -800,8 +820,9 @@ tc_set_constant_buffer(struct pipe_context *_pipe,
struct tc_constant_buffer *p =
tc_add_struct_typed_call(tc, TC_CALL_set_constant_buffer,
tc_constant_buffer);
p->shader = shader;
p->index = index;
p->info.shader = shader;
p->info.index = index;
p->info.is_null = false;
p->cb.buffer_size = cb->buffer_size;
p->cb.user_buffer = NULL;
p->cb.buffer_offset = offset;
@ -812,21 +833,17 @@ tc_set_constant_buffer(struct pipe_context *_pipe,
struct tc_constant_buffer *p =
tc_add_struct_typed_call(tc, TC_CALL_set_constant_buffer,
tc_constant_buffer);
p->shader = shader;
p->index = index;
p->info.shader = shader;
p->info.index = index;
p->info.is_null = false;
p->cb.user_buffer = NULL;
p->cb.buffer_offset = cb->buffer_offset;
p->cb.buffer_size = cb->buffer_size;
if (cb) {
if (take_ownership)
p->cb.buffer = cb->buffer;
else
tc_set_resource_reference(&p->cb.buffer, cb->buffer);
p->cb.user_buffer = NULL;
p->cb.buffer_offset = cb->buffer_offset;
p->cb.buffer_size = cb->buffer_size;
} else {
memset(&p->cb, 0, sizeof(*cb));
}
if (take_ownership)
p->cb.buffer = cb->buffer;
else
tc_set_resource_reference(&p->cb.buffer, cb->buffer);
}
struct tc_inlinable_constants {