diff options
| author | Vadim Girlin <[email protected]> | 2011-07-10 13:19:38 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2011-07-10 13:19:38 -0400 |
| commit | f0a7e28e29b5005c20ac02a7eec6511f6d7fd1c4 (patch) | |
| tree | 0f228072ea7ac75a77956d8aa4f9c240cb7f6dab | |
| parent | d644a50dc328e54d513e4304378bb8c34148f7cc (diff) | |
r600g: LIT: clamp negative src.y to 0
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=39083
Signed-off-by: Vadim Girlin <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | src/gallium/drivers/r600/r600_shader.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index de49d212a58..3e21ad1fdc6 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -1370,6 +1370,22 @@ static int tgsi_lit(struct r600_shader_ctx *ctx) struct r600_bc_alu alu; int r; + /* tmp.x = max(src.y, 0.0) */ + memset(&alu, 0, sizeof(struct r600_bc_alu)); + alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MAX); + r600_bc_src(&alu.src[0], &ctx->src[0], 1); + alu.src[1].sel = V_SQ_ALU_SRC_0; /*0.0*/ + alu.src[1].chan = 1; + + alu.dst.sel = ctx->temp_reg; + alu.dst.chan = 0; + alu.dst.write = 1; + + alu.last = 1; + r = r600_bc_add_alu(ctx->bc, &alu); + if (r) + return r; + if (inst->Dst[0].Register.WriteMask & (1 << 2)) { int chan; @@ -1378,11 +1394,13 @@ static int tgsi_lit(struct r600_shader_ctx *ctx) if (ctx->bc->chip_class == CAYMAN) { for (i = 0; i < 3; i++) { - /* dst.z = log(src.y) */ + /* tmp.z = log(tmp.x) */ memset(&alu, 0, sizeof(struct r600_bc_alu)); alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_LOG_CLAMPED); - r600_bc_src(&alu.src[0], &ctx->src[0], 1); - tgsi_dst(ctx, &inst->Dst[0], i, &alu.dst); + alu.src[0].sel = ctx->temp_reg; + alu.src[0].chan = 0; + alu.dst.sel = ctx->temp_reg; + alu.dst.chan = i; if (i == 2) { alu.dst.write = 1; alu.last = 1; @@ -1394,10 +1412,11 @@ static int tgsi_lit(struct r600_shader_ctx *ctx) return r; } } else { - /* tmp.z = log(src.y) */ + /* tmp.z = log(tmp.x) */ memset(&alu, 0, sizeof(struct r600_bc_alu)); alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_LOG_CLAMPED); - r600_bc_src(&alu.src[0], &ctx->src[0], 1); + alu.src[0].sel = ctx->temp_reg; + alu.src[0].chan = 0; alu.dst.sel = ctx->temp_reg; alu.dst.chan = 2; alu.dst.write = 1; |