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r300g: simplify the immd_is_good_idea function

This commit is contained in:
Marek Olšák 2011-09-26 23:46:42 +02:00
parent 3c79962378
commit b2e6ca8ec7
1 changed files with 2 additions and 26 deletions
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28
src/gallium/drivers/r300/r300_render.c
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@ -313,40 +313,16 @@ static boolean r300_prepare_for_rendering(struct r300_context *r300,
static boolean immd_is_good_idea(struct r300_context *r300,
unsigned count)
{
struct pipe_vertex_element* velem;
struct pipe_resource *buf;
boolean checked[PIPE_MAX_ATTRIBS] = {0};
unsigned vertex_element_count = r300->velems->count;
unsigned i, vbi;
if (DBG_ON(r300, DBG_NO_IMMD)) {
return FALSE;
}
if (r300->draw) {
return FALSE;
}
if (count * r300->velems->vertex_size_dwords > IMMD_DWORDS) {
return FALSE;
}
/* We shouldn't map buffers referenced by CS, busy buffers,
* and ones placed in VRAM. */
for (i = 0; i < vertex_element_count; i++) {
velem = &r300->velems->velem[i];
vbi = velem->vertex_buffer_index;
if (!checked[vbi]) {
buf = r300->vbuf_mgr->real_vertex_buffer[vbi].buffer;
if ((r300_resource(buf)->domain != RADEON_DOMAIN_GTT)) {
return FALSE;
}
checked[vbi] = TRUE;
}
}
/* Buffers can only be used for read by r300 (except query buffers, but
* those can't be bound by a state tracker as vertex buffers). */
return TRUE;
}