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authorCorbin Simpson <MostAwesomeDude@gmail.com>2008-05-21 08:24:28 -0700
committerCorbin Simpson <MostAwesomeDude@gmail.com>2008-05-21 08:24:28 -0700
commit1e2907f170116138b1ae304dc075ee52e377fd73 (patch)
treea02e96d001c3d141f3d532a2313276e11eb9034a
parentbb57c30a537f2ae01a146dd697ca332f7667c5c5 (diff)
r5xx: Add OPCODE_POW.
Necessary for Google Earth, among other things.
-rw-r--r--src/mesa/drivers/dri/r300/r500_fragprog.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/r500_fragprog.c b/src/mesa/drivers/dri/r300/r500_fragprog.c
index 9e08b2757f..70940e8215 100644
--- a/src/mesa/drivers/dri/r300/r500_fragprog.c
+++ b/src/mesa/drivers/dri/r300/r500_fragprog.c
@@ -93,6 +93,9 @@
#define MAKE_SWIZ_RGBA_C(x) (x << 14)
#define MAKE_SWIZ_ALPHA_C(x) (x << 27)
+/* Writemasks */
+#define R500_WRITEMASK_ARGB 0xF
+
static void dump_program(struct r500_fragment_program *fp);
static inline GLuint make_rgb_swizzle(struct prog_src_register src) {
@@ -686,6 +689,50 @@ static GLboolean parse_program(struct r500_fragment_program *fp)
// | R500_ALU_RGBA_ALPHA_SEL_C_SRC2
| MAKE_SWIZ_ALPHA_C(R500_SWIZZLE_ZERO);
break;
+ case OPCODE_POW:
+ /* POW(a,b) = EX2(LN2(a)*b) */
+ src[0] = make_src(fp, fpi->SrcReg[0]);
+ src[1] = make_src(fp, fpi->SrcReg[1]);
+ fp->inst[counter].inst0 = R500_INST_TYPE_ALU | R500_INST_TEX_SEM_WAIT
+ | (R500_WRITEMASK_ARGB << 11);
+ fp->inst[counter].inst1 = R500_RGB_ADDR0(src[0]);
+ fp->inst[counter].inst2 = R500_ALPHA_ADDR0(src[0]);
+ fp->inst[counter].inst3 = R500_ALU_RGB_SEL_A_SRC0
+ | MAKE_SWIZ_RGB_A(make_rgb_swizzle(fpi->SrcReg[0]));
+ fp->inst[counter].inst4 = R500_ALPHA_OP_LN2
+ | R500_ALPHA_ADDRD(get_temp(fp, 0))
+ | R500_ALPHA_SEL_A_SRC0 | MAKE_SWIZ_ALPHA_A(make_sop_swizzle(fpi->SrcReg[0]));
+ fp->inst[counter].inst5 = R500_ALU_RGBA_OP_SOP
+ | R500_ALU_RGBA_ADDRD(get_temp(fp, 0));
+ counter++;
+ fp->inst[counter].inst0 = R500_INST_TYPE_ALU | (R500_WRITEMASK_ARGB << 11);
+ fp->inst[counter].inst1 = R500_RGB_ADDR0(get_temp(fp, 0))
+ | R500_RGB_ADDR1(src[1]);
+ fp->inst[counter].inst2 = R500_ALPHA_ADDR0(get_temp(fp, 0))
+ | R500_ALPHA_ADDR1(src[1]);
+ fp->inst[counter].inst3 = R500_ALU_RGB_SEL_A_SRC0
+ | MAKE_SWIZ_RGB_A(make_rgb_swizzle(fpi->SrcReg[0]))
+ | R500_ALU_RGB_SEL_B_SRC1 | MAKE_SWIZ_RGB_B(make_rgb_swizzle(fpi->SrcReg[1]));
+ fp->inst[counter].inst4 = R500_ALPHA_OP_MAD
+ | R500_ALPHA_ADDRD(get_temp(fp, 1))
+ | R500_ALPHA_SEL_A_SRC0 | MAKE_SWIZ_ALPHA_A(make_alpha_swizzle(fpi->SrcReg[0]))
+ | R500_ALPHA_SEL_B_SRC1 | MAKE_SWIZ_ALPHA_B(make_alpha_swizzle(fpi->SrcReg[1]));
+ fp->inst[counter].inst5 = R500_ALU_RGBA_OP_MAD
+ | R500_ALU_RGBA_ADDRD(get_temp(fp, 1))
+ | MAKE_SWIZ_RGBA_C(R500_SWIZ_RGB_ZERO)
+ | MAKE_SWIZ_ALPHA_C(R500_SWIZZLE_ZERO);
+ counter++;
+ emit_alu(fp, counter, fpi);
+ fp->inst[counter].inst1 = R500_RGB_ADDR0(get_temp(fp, 1));
+ fp->inst[counter].inst2 = R500_ALPHA_ADDR0(get_temp(fp, 1));
+ fp->inst[counter].inst3 = R500_ALU_RGB_SEL_A_SRC0
+ | MAKE_SWIZ_RGB_A(make_rgb_swizzle(fpi->SrcReg[0]));
+ fp->inst[counter].inst4 = R500_ALPHA_OP_EX2
+ | R500_ALPHA_ADDRD(dest)
+ | R500_ALPHA_SEL_A_SRC0 | MAKE_SWIZ_ALPHA_A(make_sop_swizzle(fpi->SrcReg[0]));
+ fp->inst[counter].inst5 = R500_ALU_RGBA_OP_SOP
+ | R500_ALU_RGBA_ADDRD(dest);
+ break;
case OPCODE_RCP:
src[0] = make_src(fp, fpi->SrcReg[0]);
emit_alu(fp, counter, fpi);