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gallium: add void *user_buffer to pipe_constant_buffer

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This reduces CPU overhead when updating constants.
This commit is contained in:
Marek Olšák
2012-04-24 22:53:05 +02:00
parent 01bf5569c4
commit 0b7d48cbad
18 changed files with 111 additions and 24 deletions
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9
src/mesa/state_tracker/st_atom_constbuf.c
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@@ -56,8 +56,6 @@ void st_upload_constants( struct st_context *st,
struct gl_program_parameter_list *params,
unsigned shader_type)
{
struct pipe_context *pipe = st->pipe;
assert(shader_type == PIPE_SHADER_VERTEX ||
shader_type == PIPE_SHADER_FRAGMENT ||
shader_type == PIPE_SHADER_GEOMETRY);
@@ -80,13 +78,12 @@ void st_upload_constants( struct st_context *st,
*/
if (st->constbuf_uploader) {
cb.buffer = NULL;
cb.user_buffer = NULL;
u_upload_data(st->constbuf_uploader, 0, paramBytes,
params->ParameterValues, &cb.buffer_offset, &cb.buffer);
} else {
cb.buffer = pipe_user_buffer_create(pipe->screen,
params->ParameterValues,
paramBytes,
PIPE_BIND_CONSTANT_BUFFER);
cb.buffer = NULL;
cb.user_buffer = params->ParameterValues;
cb.buffer_offset = 0;
}
cb.buffer_size = paramBytes;