diff options
Diffstat (limited to 'src/gallium/drivers/radeonsi/radeonsi_shader.c')
| -rw-r--r-- | src/gallium/drivers/radeonsi/radeonsi_shader.c | 51 |
1 files changed, 41 insertions, 10 deletions
diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c index fd614dde388..98866c4ee1f 100644 --- a/src/gallium/drivers/radeonsi/radeonsi_shader.c +++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c @@ -390,13 +390,47 @@ static void si_llvm_init_export_args(struct lp_build_tgsi_context *bld_base, unsigned compressed = 0; unsigned chan; - for (chan = 0; chan < 4; chan++ ) { - LLVMValueRef out_ptr = - si_shader_ctx->radeon_bld.soa.outputs[index][chan]; - /* +5 because the first output value will be - * the 6th argument to the intrinsic. */ - args[chan + 5] = LLVMBuildLoad(base->gallivm->builder, - out_ptr, ""); + if (si_shader_ctx->type == TGSI_PROCESSOR_FRAGMENT) { + int cbuf = target - V_008DFC_SQ_EXP_MRT; + + if (cbuf >= 0 && cbuf < 8) { + struct r600_context *rctx = si_shader_ctx->rctx; + compressed = (rctx->export_16bpc >> cbuf) & 0x1; + } + } + + if (compressed) { + /* Pixel shader needs to pack output values before export */ + for (chan = 0; chan < 2; chan++ ) { + LLVMValueRef *out_ptr = + si_shader_ctx->radeon_bld.soa.outputs[index]; + args[0] = LLVMBuildLoad(base->gallivm->builder, + out_ptr[2 * chan], ""); + args[1] = LLVMBuildLoad(base->gallivm->builder, + out_ptr[2 * chan + 1], ""); + args[chan + 5] = + build_intrinsic(base->gallivm->builder, + "llvm.SI.packf16", + LLVMInt32TypeInContext(base->gallivm->context), + args, 2, + LLVMReadNoneAttribute); + args[chan + 7] = args[chan + 5]; + } + + /* Set COMPR flag */ + args[4] = uint->one; + } else { + for (chan = 0; chan < 4; chan++ ) { + LLVMValueRef out_ptr = + si_shader_ctx->radeon_bld.soa.outputs[index][chan]; + /* +5 because the first output value will be + * the 6th argument to the intrinsic. */ + args[chan + 5] = LLVMBuildLoad(base->gallivm->builder, + out_ptr, ""); + } + + /* Clear COMPR flag */ + args[4] = uint->zero; } /* XXX: This controls which components of the output @@ -415,9 +449,6 @@ static void si_llvm_init_export_args(struct lp_build_tgsi_context *bld_base, /* Specify the target we are exporting */ args[3] = lp_build_const_int32(base->gallivm, target); - /* Set COMPR flag */ - args[4] = uint->zero; - /* XXX: We probably need to keep track of the output * values, so we know what we are passing to the next * stage. */ |