KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i965: Enable the new FS backend on pre-gen6 as well. 

It is now to the point where we have no regressing piglit tests.  It
also fixes Yo Frankie! and Humus DynamicBranching, probably due to the
piglit bias tests that work that didn't on the Mesa IR backend.

As a downside, performance takes about a 5-10% performance hit at the
moment (e.g. nexuiz 19.8fps -> 18.8fps), which I plan to resolve by
reintroducing 16-wide fragment shaders where possible.  It is a win,
though, for fragment shaders using flow control.
This commit is contained in:
Eric Anholt 2010-10-14 12:23:29 -07:00
parent 897f6d3c7d
commit a81d423d93
1 changed files with 1 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/mesa/drivers/dri/i965/brw_fs.cpp
View File

@ -48,7 +48,6 @@ extern "C" {
#include "../glsl/ir_optimization.h"
#include "../glsl/ir_print_visitor.h"
static int using_new_fs = -1;
static struct brw_reg brw_reg_from_fs_reg(class fs_reg *reg);
struct gl_shader *
@ -92,17 +91,10 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
{
struct intel_context *intel = intel_context(ctx);
if (using_new_fs == -1) {
if (intel->gen >= 6)
using_new_fs = 1;
else
using_new_fs = getenv("INTEL_NEW_FS") != NULL;
}
for (unsigned i = 0; i < prog->_NumLinkedShaders; i++) {
struct brw_shader *shader = (struct brw_shader *)prog->_LinkedShaders[i];
if (using_new_fs && shader->base.Type == GL_FRAGMENT_SHADER) {
if (shader->base.Type == GL_FRAGMENT_SHADER) {
void *mem_ctx = talloc_new(NULL);
bool progress;
@ -3190,9 +3182,6 @@ brw_wm_fs_emit(struct brw_context *brw, struct brw_wm_compile *c)
if (!prog)
return GL_FALSE;
if (!using_new_fs)
return GL_FALSE;
for (unsigned int i = 0; i < prog->_NumLinkedShaders; i++) {
if (prog->_LinkedShaders[i]->Type == GL_FRAGMENT_SHADER) {
shader = (struct brw_shader *)prog->_LinkedShaders[i];