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authorBrian Paul <brianp@vmware.com>2009-03-10 16:17:28 -0600
committerBrian Paul <brianp@vmware.com>2009-03-10 18:27:48 -0600
commitddf7d8fe01a3db6f1107e2cb01e91d90b6bd11c6 (patch)
tree516c01481290462fb1164b1feba1b8616933e848 /src/mesa/drivers/dri
parent76ff6d40f489f845ddf2ef33a3e5570f4544b7e9 (diff)
i965: more code clean-ups, comments
Diffstat (limited to 'src/mesa/drivers/dri')
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_glsl.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c
index b37c51b329..40aede7252 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c
@@ -181,11 +181,13 @@ static void prealloc_reg(struct brw_wm_compile *c)
GLuint inputs = FRAG_BIT_WPOS | c->fp_interp_emitted | c->fp_deriv_emitted;
for (i = 0; i < 4; i++) {
- reg = (i < c->key.nr_depth_regs)
- ? brw_vec8_grf(i*2, 0) : brw_vec8_grf(0, 0);
+ if (i < c->key.nr_depth_regs)
+ reg = brw_vec8_grf(i * 2, 0);
+ else
+ reg = brw_vec8_grf(0, 0);
set_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, i, reg);
}
- c->reg_index += 2*c->key.nr_depth_regs;
+ c->reg_index += 2 * c->key.nr_depth_regs;
/* constants */
{
@@ -194,10 +196,14 @@ static void prealloc_reg(struct brw_wm_compile *c)
c->fp->program.Base.Parameters;
int index = 0;
+ /* number of float constants */
c->prog_data.nr_params = 4 * nr_params;
+
+ /* loop over program constants (float[4]) */
for (i = 0; i < nr_params; i++) {
+ /* loop over XYZW channels */
for (j = 0; j < 4; j++, index++) {
- reg = brw_vec1_grf(c->reg_index + index/8, index%8);
+ reg = brw_vec1_grf(c->reg_index + index / 8, index % 8);
/* Save pointer to parameter/constant value.
* Constants will be copied in prepare_constant_buffer()
*/
@@ -205,6 +211,7 @@ static void prealloc_reg(struct brw_wm_compile *c)
set_reg(c, PROGRAM_STATE_VAR, i, j, reg);
}
}
+ /* number of constant regs used (each reg is float[8]) */
c->nr_creg = 2 * ((4 * nr_params + 15) / 16);
c->reg_index += c->nr_creg;
}