summaryrefslogtreecommitdiff
path: root/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/r500_fragprog.c')
-rw-r--r--src/mesa/drivers/dri/r300/compiler/r500_fragprog.c143
1 files changed, 140 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c b/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
index b0fb8e970b..647bc87d0b 100644
--- a/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
+++ b/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
@@ -138,6 +138,142 @@ int r500_transform_TEX(
}
}
+ /* Texture wrap modes don't work on NPOT textures or texrects.
+ *
+ * The game plan is simple. We have two flags, fake_npot and
+ * non_normalized_coords, as well as a tex target. The RECT tex target
+ * will make the emitted code use non-scaled texcoords.
+ *
+ * Non-wrapped/clamped texcoords with NPOT are free in HW. Repeat and
+ * mirroring are not. If we need to repeat, we do:
+ *
+ * MUL temp, texcoord, <scaling factor constant>
+ * FRC temp, temp ; Discard integer portion of coords
+ *
+ * This gives us coords in [0, 1].
+ *
+ * Mirroring is trickier. We're going to start out like repeat:
+ *
+ * MUL temp0, texcoord, <scaling factor constant> ; De-mirror across axes
+ * MUL temp0, abs(temp0), 0.5 ; Pattern repeats in [0, 2]
+ * ; so scale to [0, 1]
+ * FRC temp0, temp0 ; Make the pattern repeat
+ * SGE temp1, temp0, 0.5 ; Select components that need to be "reflected"
+ * ; across the mirror
+ * MAD temp0, neg(0.5), temp1, temp0 ; Add -0.5 to the
+ * ; selected components
+ * ADD temp0, temp0, temp0 ; Poor man's 2x to undo earlier MUL
+ *
+ * This gives us coords in [0, 1].
+ *
+ * ~ C.
+ */
+ if (inst->U.I.Opcode != RC_OPCODE_KIL &&
+ (inst->U.I.TexSrcTarget == RC_TEXTURE_RECT ||
+ compiler->state.unit[inst->U.I.TexSrcUnit].fake_npot ||
+ compiler->state.unit[inst->U.I.TexSrcUnit].non_normalized_coords)) {
+ rc_wrap_mode wrapmode = compiler->state.unit[inst->U.I.TexSrcUnit].wrap_mode;
+ struct rc_instruction *inst_rect = NULL;
+ unsigned temp = rc_find_free_temporary(c);
+
+ if (compiler->state.unit[inst->U.I.TexSrcUnit].fake_npot &&
+ wrapmode != RC_WRAP_NONE && wrapmode != RC_WRAP_CLAMP) {
+
+ if ((inst->U.I.TexSrcTarget == RC_TEXTURE_RECT ||
+ compiler->state.unit[inst->U.I.TexSrcUnit].non_normalized_coords)) {
+ inst_rect = rc_insert_new_instruction(c, inst->Prev);
+
+ inst_rect->U.I.Opcode = RC_OPCODE_MUL;
+ inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.DstReg.Index = temp;
+ inst_rect->U.I.SrcReg[0] = inst->U.I.SrcReg[0];
+ inst_rect->U.I.SrcReg[1].File = RC_FILE_CONSTANT;
+ inst_rect->U.I.SrcReg[1].Index =
+ rc_constants_add_state(&c->Program.Constants,
+ RC_STATE_R300_TEXRECT_FACTOR, inst->U.I.TexSrcUnit);
+
+ reset_srcreg(&inst->U.I.SrcReg[0]);
+ inst->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
+ inst->U.I.SrcReg[0].Index = temp;
+
+ inst->U.I.TexSrcTarget = RC_TEXTURE_2D;
+ }
+
+ if (wrapmode == RC_WRAP_REPEAT) {
+ inst_rect = rc_insert_new_instruction(c, inst->Prev);
+
+ inst_rect->U.I.Opcode = RC_OPCODE_FRC;
+ inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.DstReg.Index = temp;
+ inst_rect->U.I.SrcReg[0] = inst->U.I.SrcReg[0];
+
+ reset_srcreg(&inst->U.I.SrcReg[0]);
+ inst->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
+ inst->U.I.SrcReg[0].Index = temp;
+ } else if (wrapmode == RC_WRAP_MIRROR) {
+ unsigned temp1;
+ /*
+ * MUL temp0, abs(temp0), 0.5
+ * FRC temp0, temp0
+ * SGE temp1, temp0, 0.5
+ * MAD temp0, neg(0.5), temp1, temp0
+ * ADD temp0, temp0, temp0
+ */
+ inst_rect = rc_insert_new_instruction(c, inst->Prev);
+
+ inst_rect->U.I.Opcode = RC_OPCODE_MUL;
+ inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.DstReg.Index = temp;
+ inst_rect->U.I.SrcReg[0] = inst->U.I.SrcReg[0];
+ inst_rect->U.I.SrcReg[1].Swizzle = RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_HALF);
+
+ inst_rect = rc_insert_new_instruction(c, inst->Prev);
+
+ inst_rect->U.I.Opcode = RC_OPCODE_FRC;
+ inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.DstReg.Index = temp;
+ inst_rect->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.SrcReg[0].Index = temp;
+
+ temp1 = rc_find_free_temporary(c);
+ inst_rect = rc_insert_new_instruction(c, inst->Prev);
+
+ inst_rect->U.I.Opcode = RC_OPCODE_SGE;
+ inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.DstReg.Index = temp1;
+ inst_rect->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.SrcReg[0].Index = temp;
+ inst_rect->U.I.SrcReg[1].Swizzle = RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_HALF);
+
+ inst_rect = rc_insert_new_instruction(c, inst->Prev);
+
+ inst_rect->U.I.Opcode = RC_OPCODE_MAD;
+ inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.DstReg.Index = temp;
+ inst_rect->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.SrcReg[0].Index = temp1;
+ inst_rect->U.I.SrcReg[1].Swizzle = RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_HALF);
+ inst_rect->U.I.SrcReg[1].Negate = 1;
+ inst_rect->U.I.SrcReg[2].File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.SrcReg[2].Index = temp;
+
+ inst_rect = rc_insert_new_instruction(c, inst->Prev);
+
+ inst_rect->U.I.Opcode = RC_OPCODE_ADD;
+ inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.DstReg.Index = temp;
+ inst_rect->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.SrcReg[0].Index = temp;
+ inst_rect->U.I.SrcReg[1].File = RC_FILE_TEMPORARY;
+ inst_rect->U.I.SrcReg[1].Index = temp;
+
+ reset_srcreg(&inst->U.I.SrcReg[0]);
+ inst->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
+ inst->U.I.SrcReg[0].Index = temp;
+ }
+ }
+ }
+
/* Cannot write texture to output registers */
if (inst->U.I.Opcode != RC_OPCODE_KIL && inst->U.I.DstReg.File != RC_FILE_TEMPORARY) {
struct rc_instruction * inst_mov = rc_insert_new_instruction(c, inst);
@@ -433,19 +569,20 @@ void r500FragmentProgramDump(struct rX00_fragment_program_code *c)
(inst >> 30));
fprintf(stderr,"\t3 RGB_INST: 0x%08x:", code->inst[n].inst3);
inst = code->inst[n].inst3;
- fprintf(stderr,"rgb_A_src:%d %s/%s/%s %d rgb_B_src:%d %s/%s/%s %d\n",
+ fprintf(stderr,"rgb_A_src:%d %s/%s/%s %d rgb_B_src:%d %s/%s/%s %d targ: %d\n",
(inst) & 0x3, toswiz((inst >> 2) & 0x7), toswiz((inst >> 5) & 0x7), toswiz((inst >> 8) & 0x7),
(inst >> 11) & 0x3,
(inst >> 13) & 0x3, toswiz((inst >> 15) & 0x7), toswiz((inst >> 18) & 0x7), toswiz((inst >> 21) & 0x7),
- (inst >> 24) & 0x3);
+ (inst >> 24) & 0x3, (inst >> 29) & 0x3);
fprintf(stderr,"\t4 ALPHA_INST:0x%08x:", code->inst[n].inst4);
inst = code->inst[n].inst4;
- fprintf(stderr,"%s dest:%d%s alp_A_src:%d %s %d alp_B_src:%d %s %d w:%d\n", to_alpha_op(inst & 0xf),
+ fprintf(stderr,"%s dest:%d%s alp_A_src:%d %s %d alp_B_src:%d %s %d targ %d w:%d\n", to_alpha_op(inst & 0xf),
(inst >> 4) & 0x7f, inst & (1<<11) ? "(rel)":"",
(inst >> 12) & 0x3, toswiz((inst >> 14) & 0x7), (inst >> 17) & 0x3,
(inst >> 19) & 0x3, toswiz((inst >> 21) & 0x7), (inst >> 24) & 0x3,
+ (inst >> 29) & 0x3,
(inst >> 31) & 0x1);
fprintf(stderr,"\t5 RGBA_INST: 0x%08x:", code->inst[n].inst5);
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-06 00:45:52 +0000