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authorMarek Olšák <[email protected]>2012-08-09 17:01:46 +0200
committerMarek Olšák <[email protected]>2012-08-15 19:20:57 +0200
commit6d3ad2dd2ba3ccdd211dbc618404519930631be2 (patch)
treebe136ba700915770692c256cc3d72e16fff4ddb3 /src/gallium
parent4b78df9c81f1ca8af2b750616de8ff440e99c3c1 (diff)
r600g: implement TXQ_LZ opcode
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/r600/r600_shader.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index e4818a08212..ed95f4cdff3 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -3745,9 +3745,10 @@ static int tgsi_tex(struct r600_shader_ctx *ctx)
int opcode;
/* Texture fetch instructions can only use gprs as source.
* Also they cannot negate the source or take the absolute value */
- const boolean src_requires_loading = tgsi_tex_src_requires_loading(ctx, 0);
+ const boolean src_requires_loading = inst->Instruction.Opcode != TGSI_OPCODE_TXQ_LZ &&
+ tgsi_tex_src_requires_loading(ctx, 0);
boolean src_loaded = FALSE;
- unsigned sampler_src_reg = 1;
+ unsigned sampler_src_reg = inst->Instruction.Opcode == TGSI_OPCODE_TXQ_LZ ? 0 : 1;
uint8_t offset_x = 0, offset_y = 0, offset_z = 0;
src_gpr = tgsi_tex_get_src_gpr(ctx, 0);
@@ -3880,7 +3881,8 @@ static int tgsi_tex(struct r600_shader_ctx *ctx)
if ((inst->Texture.Texture == TGSI_TEXTURE_CUBE ||
inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE) &&
- inst->Instruction.Opcode != TGSI_OPCODE_TXQ) {
+ inst->Instruction.Opcode != TGSI_OPCODE_TXQ &&
+ inst->Instruction.Opcode != TGSI_OPCODE_TXQ_LZ) {
static const unsigned src0_swizzle[] = {2, 2, 0, 1};
static const unsigned src1_swizzle[] = {1, 0, 2, 2};
@@ -4049,7 +4051,13 @@ static int tgsi_tex(struct r600_shader_ctx *ctx)
tex.dst_sel_y = (inst->Dst[0].Register.WriteMask & 2) ? 1 : 7;
tex.dst_sel_z = (inst->Dst[0].Register.WriteMask & 4) ? 2 : 7;
tex.dst_sel_w = (inst->Dst[0].Register.WriteMask & 8) ? 3 : 7;
- if (src_loaded) {
+
+ if (inst->Instruction.Opcode == TGSI_OPCODE_TXQ_LZ) {
+ tex.src_sel_x = 4;
+ tex.src_sel_y = 4;
+ tex.src_sel_z = 4;
+ tex.src_sel_w = 4;
+ } else if (src_loaded) {
tex.src_sel_x = 0;
tex.src_sel_y = 1;
tex.src_sel_z = 2;
@@ -5308,8 +5316,8 @@ static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = {
{TGSI_OPCODE_BGNSUB, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_ENDLOOP, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_endloop},
{TGSI_OPCODE_ENDSUB, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
+ {TGSI_OPCODE_TXQ_LZ, 0, SQ_TEX_INST_GET_TEXTURE_RESINFO, tgsi_tex},
/* gap */
- {103, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{104, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{105, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{106, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
@@ -5482,8 +5490,8 @@ static struct r600_shader_tgsi_instruction eg_shader_tgsi_instruction[] = {
{TGSI_OPCODE_BGNSUB, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_ENDLOOP, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_endloop},
{TGSI_OPCODE_ENDSUB, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
+ {TGSI_OPCODE_TXQ_LZ, 0, SQ_TEX_INST_GET_TEXTURE_RESINFO, tgsi_tex},
/* gap */
- {103, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{104, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{105, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{106, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
@@ -5656,8 +5664,8 @@ static struct r600_shader_tgsi_instruction cm_shader_tgsi_instruction[] = {
{TGSI_OPCODE_BGNSUB, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_ENDLOOP, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_endloop},
{TGSI_OPCODE_ENDSUB, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
+ {TGSI_OPCODE_TXQ_LZ, 0, SQ_TEX_INST_GET_TEXTURE_RESINFO, tgsi_tex},
/* gap */
- {103, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{104, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{105, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{106, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},