diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/r600/r600_shader.c | 95 |
1 files changed, 90 insertions, 5 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index 2a0f7b3056c..2aeaf9a6a65 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -2084,7 +2084,6 @@ static int tgsi_exp(struct r600_shader_ctx *ctx) static int tgsi_log(struct r600_shader_ctx *ctx) { struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction; - struct r600_bc_alu_src r600_src[3]; struct r600_bc_alu alu; int r; @@ -2129,13 +2128,99 @@ static int tgsi_log(struct r600_shader_ctx *ctx) return r; } - /* result.y = FIXME; */ + /* result.y = src.x / (2 ^ floor(log2(src.x))); */ if ((inst->Dst[0].Register.WriteMask >> 1) & 1) { memset(&alu, 0, sizeof(struct r600_bc_alu)); - alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MOV); - alu.src[0].sel = V_SQ_ALU_SRC_1; - alu.src[0].chan = 0; + alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_LOG_IEEE); + r = tgsi_src(ctx, &inst->Src[0], &alu.src[0]); + if (r) + return r; + + alu.src[0].chan = tgsi_chan(&inst->Src[0], 0); + + alu.dst.sel = ctx->temp_reg; + alu.dst.chan = 1; + alu.dst.write = 1; + alu.last = 1; + + r = r600_bc_add_alu(ctx->bc, &alu); + if (r) + return r; + + r = r600_bc_add_literal(ctx->bc, ctx->value); + if (r) + return r; + + memset(&alu, 0, sizeof(struct r600_bc_alu)); + + alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_FLOOR); + alu.src[0].sel = ctx->temp_reg; + alu.src[0].chan = 1; + + alu.dst.sel = ctx->temp_reg; + alu.dst.chan = 1; + alu.dst.write = 1; + alu.last = 1; + + r = r600_bc_add_alu(ctx->bc, &alu); + if (r) + return r; + + r = r600_bc_add_literal(ctx->bc, ctx->value); + if (r) + return r; + + memset(&alu, 0, sizeof(struct r600_bc_alu)); + + alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_EXP_IEEE); + alu.src[0].sel = ctx->temp_reg; + alu.src[0].chan = 1; + + alu.dst.sel = ctx->temp_reg; + alu.dst.chan = 1; + alu.dst.write = 1; + alu.last = 1; + + r = r600_bc_add_alu(ctx->bc, &alu); + if (r) + return r; + + r = r600_bc_add_literal(ctx->bc, ctx->value); + if (r) + return r; + + memset(&alu, 0, sizeof(struct r600_bc_alu)); + + alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_RECIP_IEEE); + alu.src[0].sel = ctx->temp_reg; + alu.src[0].chan = 1; + + alu.dst.sel = ctx->temp_reg; + alu.dst.chan = 1; + alu.dst.write = 1; + alu.last = 1; + + r = r600_bc_add_alu(ctx->bc, &alu); + if (r) + return r; + + r = r600_bc_add_literal(ctx->bc, ctx->value); + if (r) + return r; + + memset(&alu, 0, sizeof(struct r600_bc_alu)); + + alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MUL); + + r = tgsi_src(ctx, &inst->Src[0], &alu.src[0]); + if (r) + return r; + + alu.src[0].chan = tgsi_chan(&inst->Src[0], 0); + + alu.src[1].sel = ctx->temp_reg; + alu.src[1].chan = 1; alu.dst.sel = ctx->temp_reg; alu.dst.chan = 1; |