diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_glsl.c | 18 |
1 files changed, 14 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 9f1c559c98..c98fd90699 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c +++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c @@ -82,8 +82,18 @@ static void release_tmps(struct brw_wm_compile *c, int mark) c->tmp_index = mark; } +/** + * Convert Mesa src register to brw register. + * \param file register file, one of PROGRAM_x + * \param index register number + * \param component src component (X=0, Y=1, Z=2, W=3) + * \param nr not used?!? + * \param neg negate value? + * \param abs take absolute value? + */ static struct brw_reg -get_reg(struct brw_wm_compile *c, int file, int index, int component, int nr, GLuint neg, GLuint abs) +get_reg(struct brw_wm_compile *c, int file, int index, int component, + int nr, GLuint neg, GLuint abs) { struct brw_reg reg; switch (file) { @@ -98,17 +108,17 @@ get_reg(struct brw_wm_compile *c, int file, int index, int component, int nr, GL break; } - if(c->wm_regs[file][index][component].inited) + if (c->wm_regs[file][index][component].inited) reg = c->wm_regs[file][index][component].reg; else reg = brw_vec8_grf(c->reg_index, 0); - if(!c->wm_regs[file][index][component].inited) { + if (!c->wm_regs[file][index][component].inited) { set_reg(c, file, index, component, reg); c->reg_index++; } - if (neg & (1<< component)) { + if (neg & (1 << component)) { reg = negate(reg); } if (abs) |