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shader: honor RDNA2 128-bit image descriptors

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This commit is contained in:
nmzik
2026-08-20 21:57:10 +02:00
parent bc5709e1bd
commit 0966938dc8
13 changed files with 122 additions and 37 deletions
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src/graphics/shader/recompiler/frontend/decode/ImageOps.cpp
+2
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@@ -309,6 +309,7 @@ void DecodeMimg(uint32_t pc, std::span<const uint32_t> code, uint32_t word_index
const uint32_t vaddr = word1 & 0xffu;
const uint32_t srsrc = (word1 >> 16u) & 0x1fu;
const uint32_t ssamp = (word1 >> 21u) & 0x1fu;
const bool r128 = ((word0 >> 15u) & 0x1u) != 0u;
const bool a16 = ((word1 >> 30u) & 0x1u) != 0u;
const bool d16 = ((word1 >> 31u) & 0x1u) != 0u;
const auto* sample = LookupSample(opcode);
@@ -332,6 +333,7 @@ void DecodeMimg(uint32_t pc, std::span<const uint32_t> code, uint32_t word_index
inst.image_sample_flags |= ImageSampleFlagA16;
}
inst.image_dimension = dimension;
inst.image_r128 = r128;
inst.image_nsa_dwords = nsa_dwords;
for (uint32_t i = 0; i < nsa_dwords * 4u; i++) {
inst.image_nsa_addr[i] = (code[word_index + 2u + i / 4u] >> ((i % 4u) * 8u)) & 0xffu;
src/graphics/shader/recompiler/frontend/decode/ShaderDecoder.cpp
+3
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@@ -157,6 +157,9 @@ std::string FormatMimg(const Instruction& inst) {
if (inst.data_bits == 16u) {
text += " d16=1";
}
if (inst.image_r128) {
text += " r128=1";
}
switch (inst.opcode) {
case Opcode::IMAGE_SAMPLE:
case Opcode::IMAGE_GATHER4_LZ:
src/graphics/shader/recompiler/frontend/decode/ShaderDecoder.h
+1
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@@ -667,6 +667,7 @@ struct Instruction {
bool slc = false;
bool idxen = false;
bool offen = false;
bool image_r128 = false;
int32_t branch_offset = 0;
uint32_t branch_target = 0;
struct {
src/graphics/shader/recompiler/frontend/translate/Memory.cpp
+6 -4
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@@ -52,11 +52,13 @@ IR::Value Translator::GetScalarAddressResource(uint32_t base) {
}
IR::Value Translator::GetImageResource(const IR::MemoryInfo& memory) {
const auto dword = [&](uint32_t index) {
return memory.image_r128 && index >= 4u ? IR::U32(IR::Value(0u))
: GetResourceDword(memory.resource, index);
};
return ir.Emit(IR::ValueOpcode::GetImageResource,
{GetResourceDword(memory.resource, 0), GetResourceDword(memory.resource, 1),
GetResourceDword(memory.resource, 2), GetResourceDword(memory.resource, 3),
GetResourceDword(memory.resource, 4), GetResourceDword(memory.resource, 5),
GetResourceDword(memory.resource, 6), GetResourceDword(memory.resource, 7)});
{dword(0), dword(1), dword(2), dword(3), dword(4), dword(5), dword(6),
dword(7)});
}
IR::Value Translator::GetSamplerResource(const IR::MemoryInfo& memory) {