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[dxbc] Implement ld for images with sparse feedback

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This commit is contained in:
Philip Rebohle 2022-08-22 04:29:56 +02:00
parent db3b2e23fb
commit e58f9a5e99
1 changed files with 29 additions and 9 deletions
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38
src/dxbc/dxbc_compiler.cpp
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@ -3310,6 +3310,9 @@ namespace dxvk {
const auto& texture = m_textures.at(ins.src[1].idx[0].offset);
const uint32_t imageLayerDim = getTexLayerDim(texture.imageInfo);
bool isMultisampled = ins.op == DxbcOpcode::LdMs
|| ins.op == DxbcOpcode::LdMsS;
// Load the texture coordinates. The last component
// contains the LOD if the resource is an image.
const DxbcRegisterValue address = emitRegisterLoad(
@ -3318,6 +3321,7 @@ namespace dxvk {
// Additional image operands. This will store
// the LOD and the address offset if present.
SpirvImageOperands imageOperands;
imageOperands.sparse = ins.dstCount == 2;
if (ins.sampleControls.u != 0 || ins.sampleControls.v != 0 || ins.sampleControls.w != 0) {
const std::array<uint32_t, 3> offsetIds = {
@ -3337,7 +3341,7 @@ namespace dxvk {
if (texture.imageInfo.dim != spv::DimBuffer && texture.imageInfo.ms == 0) {
DxbcRegisterValue imageLod;
if (ins.op != DxbcOpcode::LdMs) {
if (!isMultisampled) {
imageLod = emitRegisterExtract(
address, DxbcRegMask(false, false, false, true));
} else {
@ -3350,9 +3354,9 @@ namespace dxvk {
imageOperands.sLod = imageLod.id;
}
// The ld2ms instruction has a sample index, but we
// The ld2dms instruction has a sample index, but we
// are only allowed to set it for multisample views
if (ins.op == DxbcOpcode::LdMs && texture.imageInfo.ms == 1) {
if (isMultisampled && texture.imageInfo.ms == 1) {
DxbcRegisterValue sampleId = emitRegisterLoad(
ins.src[2], DxbcRegMask(true, false, false, false));
@ -3366,13 +3370,26 @@ namespace dxvk {
// Reading a typed image or buffer view
// always returns a four-component vector.
const uint32_t imageId = m_module.opLoad(texture.imageTypeId, texture.varId);
DxbcVectorType texelType;
texelType.ctype = texture.sampledType;
texelType.ccount = 4;
uint32_t texelTypeId = getVectorTypeId(texelType);
uint32_t resultTypeId = texelTypeId;
uint32_t resultId = 0;
if (imageOperands.sparse)
resultTypeId = getSparseResultTypeId(texelTypeId);
resultId = m_module.opImageFetch(resultTypeId,
imageId, coord.id, imageOperands);
DxbcRegisterValue result;
result.type.ctype = texture.sampledType;
result.type.ccount = 4;
result.id = m_module.opImageFetch(
getVectorTypeId(result.type), imageId,
coord.id, imageOperands);
result.type = texelType;
result.id = imageOperands.sparse
? emitExtractSparseTexel(texelTypeId, resultId)
: resultId;
// Swizzle components using the texture swizzle
// and the destination operand's write mask
@ -3380,6 +3397,9 @@ namespace dxvk {
ins.src[1].swizzle, ins.dst[0].mask);
emitRegisterStore(ins.dst[0], result);
if (imageOperands.sparse)
emitStoreSparseFeedback(ins.dst[1], resultId);
}