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authorCorbin Simpson <MostAwesomeDude@gmail.com>2009-03-11 11:23:15 -0700
committerCorbin Simpson <MostAwesomeDude@gmail.com>2009-03-11 15:23:09 -0700
commit6b1596aed3fccc6f6edbbb931f8eca96a7163b9d (patch)
tree999820d6ffc39bce8c1b2f8be3e279ecb4da7e22 /src/gallium
parentddba20b064253f0556e078157ba6ff8f3250441b (diff)
r300-gallium: r500-fs: Add SWZ.
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/r300/r300_state_shader.c43
1 files changed, 32 insertions, 11 deletions
diff --git a/src/gallium/drivers/r300/r300_state_shader.c b/src/gallium/drivers/r300/r300_state_shader.c
index 65d5c5a596..07705adaf4 100644
--- a/src/gallium/drivers/r300/r300_state_shader.c
+++ b/src/gallium/drivers/r300/r300_state_shader.c
@@ -68,17 +68,37 @@ static void r300_fs_declare(struct r300_fs_asm* assembler,
assembler->temp_offset = assembler->color_count + assembler->tex_count;
}
-/* XXX cover extended cases */
-static INLINE uint32_t r500_rgb_swiz(struct tgsi_src_register* reg)
+static INLINE unsigned r500_fix_swiz(unsigned s)
{
- uint32_t temp = reg->SwizzleX | (reg->SwizzleY << 3) |
- (reg->SwizzleZ << 6);
- return temp;
+ /* For historical reasons, the swizzle values x, y, z, w, and 0 are
+ * equivalent to the actual machine code, but 1 is not. Thus, we just
+ * adjust it a bit... */
+ if (s == TGSI_EXTSWIZZLE_ONE) {
+ return R500_SWIZZLE_ONE;
+ } else {
+ return s;
+ }
+}
+
+static INLINE uint32_t r500_rgb_swiz(struct tgsi_full_src_register* reg)
+{
+ if (reg->SrcRegister.Extended) {
+ return r500_fix_swiz(reg->SrcRegisterExtSwz.ExtSwizzleX) |
+ (r500_fix_swiz(reg->SrcRegisterExtSwz.ExtSwizzleY) << 3) |
+ (r500_fix_swiz(reg->SrcRegisterExtSwz.ExtSwizzleZ) << 6);
+ } else {
+ return reg->SrcRegister.SwizzleX | (reg->SrcRegister.SwizzleY << 3) |
+ (reg->SrcRegister.SwizzleZ << 6);
+ }
}
-static INLINE uint32_t r500_alpha_swiz(struct tgsi_src_register* reg)
+static INLINE uint32_t r500_alpha_swiz(struct tgsi_full_src_register* reg)
{
- return reg->SwizzleZ;
+ if (reg->SrcRegister.Extended) {
+ return r500_fix_swiz(reg->SrcRegisterExtSwz.ExtSwizzleW);
+ } else {
+ return reg->SrcRegister.SwizzleW;
+ }
}
static INLINE void r500_emit_mov(struct r500_fragment_shader* fs,
@@ -98,12 +118,12 @@ static INLINE void r500_emit_mov(struct r500_fragment_shader* fs,
R500_ALPHA_ADDR0(0) | R500_ALPHA_ADDR1(0) | R500_ALPHA_ADDR1_CONST |
R500_ALPHA_ADDR2(0) | R500_ALPHA_ADDR2_CONST;
fs->instructions[i].inst3 = R500_ALU_RGB_SEL_A_SRC0 |
- R500_SWIZ_RGB_A(r500_rgb_swiz(&src->SrcRegister)) |
+ R500_SWIZ_RGB_A(r500_rgb_swiz(src)) |
R500_ALU_RGB_SEL_B_SRC0 |
- R500_SWIZ_RGB_B(r500_rgb_swiz(&src->SrcRegister));
+ R500_SWIZ_RGB_B(r500_rgb_swiz(src));
fs->instructions[i].inst4 = R500_ALPHA_OP_CMP |
- R500_SWIZ_ALPHA_A(r500_alpha_swiz(&src->SrcRegister)) |
- R500_SWIZ_ALPHA_B(r500_alpha_swiz(&src->SrcRegister));
+ R500_SWIZ_ALPHA_A(r500_alpha_swiz(src)) |
+ R500_SWIZ_ALPHA_B(r500_alpha_swiz(src));
fs->instructions[i].inst5 =
R500_ALU_RGBA_OP_CMP | R500_ALU_RGBA_R_SWIZ_0 |
R500_ALU_RGBA_G_SWIZ_0 | R500_ALU_RGBA_B_SWIZ_0 |
@@ -121,6 +141,7 @@ static void r500_fs_instruction(struct r500_fragment_shader* fs,
* documentation. */
switch (inst->Instruction.Opcode) {
case TGSI_OPCODE_MOV:
+ case TGSI_OPCODE_SWZ:
r500_emit_mov(fs, assembler, &inst->FullSrcRegisters[0],
&inst->FullDstRegisters[0]);
break;