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authorCorbin Simpson <MostAwesomeDude@gmail.com>2010-02-01 12:47:03 -0800
committerCorbin Simpson <MostAwesomeDude@gmail.com>2010-02-01 12:48:33 -0800
commit9a1bf52c184b6c0393543fe4bb03c790630b9e21 (patch)
tree4df4f30a1c47491f13f219ff3bc31ec0e3acbf42
parente1906ae98ef4d8f153553056552c06ac4292d1f5 (diff)
r300g: Inline immediates where possible.
Oh look, more gears. Seems to work just fine though.
-rw-r--r--src/gallium/drivers/r300/r300_tgsi_to_rc.c61
-rw-r--r--src/gallium/drivers/r300/r300_tgsi_to_rc.h7
2 files changed, 60 insertions, 8 deletions
diff --git a/src/gallium/drivers/r300/r300_tgsi_to_rc.c b/src/gallium/drivers/r300/r300_tgsi_to_rc.c
index a792c2cf98..6b2bc78799 100644
--- a/src/gallium/drivers/r300/r300_tgsi_to_rc.c
+++ b/src/gallium/drivers/r300/r300_tgsi_to_rc.c
@@ -201,6 +201,8 @@ static void transform_srcreg(
struct rc_src_register * dst,
struct tgsi_full_src_register * src)
{
+ unsigned i, j;
+
dst->File = translate_register_file(src->Register.File);
dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
dst->RelAddr = src->Register.Indirect;
@@ -210,6 +212,21 @@ static void transform_srcreg(
dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 3) << 9;
dst->Abs = src->Register.Absolute;
dst->Negate = src->Register.Negate ? RC_MASK_XYZW : 0;
+
+ if (src->Register.File == TGSI_FILE_IMMEDIATE) {
+ for (i = 0; i < ttr->imms_to_swizzle_count; i++) {
+ if (ttr->imms_to_swizzle[i].index == src->Register.Index) {
+ dst->File = RC_FILE_TEMPORARY;
+ dst->Index = 0;
+ dst->Swizzle = 0;
+ for (j = 0; j < 4; j++) {
+ dst->Swizzle |= GET_SWZ(ttr->imms_to_swizzle[i].swizzle,
+ tgsi_util_get_full_src_register_swizzle(src, j)) << (j * 3);
+ }
+ break;
+ }
+ }
+ }
}
static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_texture src,
@@ -277,21 +294,48 @@ static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_inst
&ttr->compiler->Program.ShadowSamplers);
}
-static void handle_immediate(struct tgsi_to_rc * ttr, struct tgsi_full_immediate * imm)
+static void handle_immediate(struct tgsi_to_rc * ttr,
+ struct tgsi_full_immediate * imm,
+ unsigned index)
{
struct rc_constant constant;
- int i;
+ unsigned swizzle = 0;
+ boolean can_swizzle = TRUE;
+ unsigned i;
+
+ for (i = 0; i < 4; i++) {
+ if (imm->u[i].Float == 0.0f) {
+ swizzle |= RC_SWIZZLE_ZERO << (i * 3);
+ } else if (imm->u[i].Float == 0.5f) {
+ swizzle |= RC_SWIZZLE_HALF << (i * 3);
+ } else if (imm->u[i].Float == 1.0f) {
+ swizzle |= RC_SWIZZLE_ONE << (i * 3);
+ } else {
+ can_swizzle = FALSE;
+ break;
+ }
+ }
+
+ if (can_swizzle) {
+ struct swizzled_imms* si =
+ &ttr->imms_to_swizzle[ttr->imms_to_swizzle_count];
- constant.Type = RC_CONSTANT_IMMEDIATE;
- constant.Size = 4;
- for(i = 0; i < 4; ++i)
- constant.u.Immediate[i] = imm->u[i].Float;
- rc_constants_add(&ttr->compiler->Program.Constants, &constant);
+ si->index = index;
+ si->swizzle = swizzle;
+ ttr->imms_to_swizzle_count++;
+ } else {
+ constant.Type = RC_CONSTANT_IMMEDIATE;
+ constant.Size = 4;
+ for(i = 0; i < 4; ++i)
+ constant.u.Immediate[i] = imm->u[i].Float;
+ rc_constants_add(&ttr->compiler->Program.Constants, &constant);
+ }
}
void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, const struct tgsi_token * tokens)
{
struct tgsi_parse_context parser;
+ unsigned imm_index = 0;
int i;
/* Allocate constants placeholders.
@@ -317,7 +361,8 @@ void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, const struct tgsi_token * tokens)
case TGSI_TOKEN_TYPE_DECLARATION:
break;
case TGSI_TOKEN_TYPE_IMMEDIATE:
- handle_immediate(ttr, &parser.FullToken.FullImmediate);
+ handle_immediate(ttr, &parser.FullToken.FullImmediate, imm_index);
+ imm_index++;
break;
case TGSI_TOKEN_TYPE_INSTRUCTION:
transform_instruction(ttr, &parser.FullToken.FullInstruction);
diff --git a/src/gallium/drivers/r300/r300_tgsi_to_rc.h b/src/gallium/drivers/r300/r300_tgsi_to_rc.h
index 93e90ec6d2..f1e66f46bb 100644
--- a/src/gallium/drivers/r300/r300_tgsi_to_rc.h
+++ b/src/gallium/drivers/r300/r300_tgsi_to_rc.h
@@ -29,11 +29,18 @@ struct tgsi_full_declaration;
struct tgsi_shader_info;
struct tgsi_token;
+struct swizzled_imms {
+ unsigned index;
+ unsigned swizzle;
+};
+
struct tgsi_to_rc {
struct radeon_compiler * compiler;
const struct tgsi_shader_info * info;
int immediate_offset;
+ struct swizzled_imms imms_to_swizzle[10];
+ unsigned imms_to_swizzle_count;
};
void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, const struct tgsi_token * tokens);