KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

radeonsi: clean up si_llvm_init_export_args 

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Marek Olšák 2015-10-07 01:28:18 +02:00
parent 82335978bb
commit 73e3fba335
1 changed files with 35 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

77
src/gallium/drivers/radeonsi/si_shader.c
View File

@ -1306,6 +1306,23 @@ static void si_llvm_init_export_args(struct lp_build_tgsi_context *bld_base,
unsigned compressed = 0;
unsigned chan;
/* XXX: This controls which components of the output
* registers actually get exported. (e.g bit 0 means export
* X component, bit 1 means export Y component, etc.) I'm
* hard coding this to 0xf for now. In the future, we might
* want to do something else.
*/
args[0] = lp_build_const_int32(base->gallivm, 0xf);
/* Specify whether the EXEC mask represents the valid mask */
args[1] = uint->zero;
/* Specify whether this is the last export */
args[2] = uint->zero;
/* Specify the target we are exporting */
args[3] = lp_build_const_int32(base->gallivm, target);
if (si_shader_ctx->type == TGSI_PROCESSOR_FRAGMENT) {
int cbuf = target - V_008DFC_SQ_EXP_MRT;
@ -1323,55 +1340,31 @@ static void si_llvm_init_export_args(struct lp_build_tgsi_context *bld_base,
}
}
/* Set COMPR flag */
args[4] = compressed ? uint->one : uint->zero;
if (compressed) {
/* Pixel shader needs to pack output values before export */
for (chan = 0; chan < 2; chan++ ) {
args[0] = values[2 * chan];
args[1] = values[2 * chan + 1];
args[chan + 5] =
lp_build_intrinsic(base->gallivm->builder,
"llvm.SI.packf16",
LLVMInt32TypeInContext(base->gallivm->context),
args, 2,
LLVMReadNoneAttribute | LLVMNoUnwindAttribute);
for (chan = 0; chan < 2; chan++) {
LLVMValueRef pack_args[2] = {
values[2 * chan],
values[2 * chan + 1]
};
LLVMValueRef packed;
packed = lp_build_intrinsic(base->gallivm->builder,
"llvm.SI.packf16",
LLVMInt32TypeInContext(base->gallivm->context),
pack_args, 2,
LLVMReadNoneAttribute | LLVMNoUnwindAttribute);
args[chan + 7] = args[chan + 5] =
LLVMBuildBitCast(base->gallivm->builder,
args[chan + 5],
packed,
LLVMFloatTypeInContext(base->gallivm->context),
"");
}
/* Set COMPR flag */
args[4] = uint->one;
} else {
for (chan = 0; chan < 4; chan++ )
/* +5 because the first output value will be
* the 6th argument to the intrinsic. */
args[chan + 5] = values[chan];
/* Clear COMPR flag */
args[4] = uint->zero;
}
/* XXX: This controls which components of the output
* registers actually get exported. (e.g bit 0 means export
* X component, bit 1 means export Y component, etc.) I'm
* hard coding this to 0xf for now. In the future, we might
* want to do something else. */
args[0] = lp_build_const_int32(base->gallivm, 0xf);
/* Specify whether the EXEC mask represents the valid mask */
args[1] = uint->zero;
/* Specify whether this is the last export */
args[2] = uint->zero;
/* Specify the target we are exporting */
args[3] = lp_build_const_int32(base->gallivm, target);
/* XXX: We probably need to keep track of the output
* values, so we know what we are passing to the next
* stage. */
} else
memcpy(&args[5], values, sizeof(values[0]) * 4);
}
/* Load from output pointers and initialize arguments for the shader export intrinsic */