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authorMarek Olšák <maraeo@gmail.com>2010-06-05 04:58:40 +0200
committerMarek Olšák <maraeo@gmail.com>2010-06-05 07:03:15 +0200
commit722db9fa77de16b92adf19fda00c9671d896749e (patch)
treef0ed82e9bace739d475fd4c246d9fbac1d728979 /src/mesa/drivers/dri/r300/compiler
parentdf36bc8dad477bcfb8012962907562489697a09c (diff)
r300/compiler: implement SNE unwound for r3xx VS, natively for r5xx VS
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler')
-rw-r--r--src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c5
-rw-r--r--src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c33
2 files changed, 37 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c b/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
index 755161cdc7..dd307856a7 100644
--- a/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
+++ b/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
@@ -353,7 +353,9 @@ static void translate_vertex_program(struct r300_vertex_program_compiler * compi
return;
}
- assert(compiler->Base.is_r500 || vpi->Opcode != RC_OPCODE_SEQ);
+ assert(compiler->Base.is_r500 ||
+ (vpi->Opcode != RC_OPCODE_SEQ &&
+ vpi->Opcode != RC_OPCODE_SNE));
switch (vpi->Opcode) {
case RC_OPCODE_ADD: ei_vector2(compiler->code, VE_ADD, vpi, inst); break;
@@ -377,6 +379,7 @@ static void translate_vertex_program(struct r300_vertex_program_compiler * compi
case RC_OPCODE_SEQ: ei_vector2(compiler->code, VE_SET_EQUAL, vpi, inst); break;
case RC_OPCODE_SGE: ei_vector2(compiler->code, VE_SET_GREATER_THAN_EQUAL, vpi, inst); break;
case RC_OPCODE_SLT: ei_vector2(compiler->code, VE_SET_LESS_THAN, vpi, inst); break;
+ case RC_OPCODE_SNE: ei_vector2(compiler->code, VE_SET_NOT_EQUAL, vpi, inst); break;
default:
rc_error(&compiler->Base, "Unknown opcode %s\n", rc_get_opcode_info(vpi->Opcode)->Name);
return;
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c b/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c
index 67e2cc0c82..d14de79565 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c
@@ -627,6 +627,33 @@ static void transform_r300_vertex_SEQ(struct radeon_compiler *c,
rc_remove_instruction(inst);
}
+static void transform_r300_vertex_SNE(struct radeon_compiler *c,
+ struct rc_instruction *inst)
+{
+ /* x != y <==> x < y || y < x */
+ int tmp = rc_find_free_temporary(c);
+
+ /* x < y */
+ emit2(c, inst->Prev, RC_OPCODE_SLT, 0,
+ dstregtmpmask(tmp, inst->U.I.DstReg.WriteMask),
+ inst->U.I.SrcReg[0],
+ inst->U.I.SrcReg[1]);
+
+ /* y < x */
+ emit2(c, inst->Prev, RC_OPCODE_SLT, 0,
+ inst->U.I.DstReg,
+ inst->U.I.SrcReg[1],
+ inst->U.I.SrcReg[0]);
+
+ /* x || y = max(x, y) */
+ emit2(c, inst->Prev, RC_OPCODE_MAX, 0,
+ inst->U.I.DstReg,
+ srcreg(RC_FILE_TEMPORARY, tmp),
+ srcreg(inst->U.I.DstReg.File, inst->U.I.DstReg.Index));
+
+ rc_remove_instruction(inst);
+}
+
static void transform_r300_vertex_SGT(struct radeon_compiler* c,
struct rc_instruction* inst)
{
@@ -672,6 +699,12 @@ int r300_transform_vertex_alu(
case RC_OPCODE_SFL: transform_SFL(c, inst); return 1;
case RC_OPCODE_SGT: transform_r300_vertex_SGT(c, inst); return 1;
case RC_OPCODE_SLE: transform_r300_vertex_SLE(c, inst); return 1;
+ case RC_OPCODE_SNE:
+ if (!c->is_r500) {
+ transform_r300_vertex_SNE(c, inst);
+ return 1;
+ }
+ return 0;
case RC_OPCODE_SUB: transform_SUB(c, inst); return 1;
case RC_OPCODE_SWZ: transform_SWZ(c, inst); return 1;
case RC_OPCODE_XPD: transform_XPD(c, inst); return 1;