diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_glsl.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_glsl.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c index d9d6ddae8c4..d78fb4ed09f 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c +++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c @@ -570,12 +570,25 @@ static struct brw_reg get_src_reg(struct brw_wm_compile *c, const GLuint nr = 1; const GLuint component = GET_SWZ(src->Swizzle, channel); - /* Extended swizzle terms */ - if (component == SWIZZLE_ZERO) { - return brw_imm_f(0.0F); - } - else if (component == SWIZZLE_ONE) { - return brw_imm_f(1.0F); + /* Only one immediate value can be used per native opcode, and it + * has be in the src1 slot, so not all Mesa instructions will get + * to take advantage of immediate constants. + */ + if (brw_wm_arg_can_be_immediate(inst->Opcode, srcRegIndex)) { + const struct gl_program_parameter_list *params; + + params = c->fp->program.Base.Parameters; + + /* Extended swizzle terms */ + if (component == SWIZZLE_ZERO) { + return brw_imm_f(0.0F); + } else if (component == SWIZZLE_ONE) { + return brw_imm_f(1.0F); + } + + if (src->File == PROGRAM_CONSTANT) { + return brw_imm_f(params->ParameterValues[src->Index][component]); + } } if (c->fp->use_const_buffer && |