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[Fix, Test] (MG_Util, MG_Backend/DirectGLES, MG_Test): resolve buffer textures through the entry point the tier ships, not the ES 3.2 core name; bound the OES retarget to an exact extension name

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swung0x48
2026-08-12 01:24:40 -04:00
parent a0bf4a83bc
commit e310e3e9ff
12 changed files with 409 additions and 56 deletions
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MobileGL/MG_Util/ShaderTranspiler/ShaderCompiler.cpp
+14 -4
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@@ -541,6 +541,12 @@ namespace MobileGL {
}
Bool ShaderCompiler::ModuleDeclaresBufferTextureSampler(const Vector<Uint32>& spirv) {
if (spirv.empty()) {
// Early out rather than letting BuildModule reject it: an empty module is a
// stage that produced no SPIR-V, which is not a capability verdict, and the
// parse would push a spurious diagnostic through the message consumer first.
return false;
}
// Callers gate this on the driver LACKING buffer textures, so the module build
// here only ever happens on a degraded driver that is about to fail the compile
// anyway - it is not on the healthy path.
@@ -556,10 +562,14 @@ namespace MobileGL {
if (type.opcode() != spv::Op::OpTypeImage) {
continue;
}
// OpTypeImage operands: Sampled Type, Dim, Depth, Arrayed, MS, Sampled, Format.
// Dim is operand 1; SpvDimBuffer is what samplerBuffer/isamplerBuffer/
// usamplerBuffer all lower to, whatever their sampled type.
if (static_cast<spv::Dim>(type.GetSingleWordInOperand(1)) == spv::Dim::Buffer) {
// OpTypeImage in-operands: Sampled Type, Dim, Depth, Arrayed, MS, Sampled,
// Format. Dim is operand 1; Dim::Buffer is what samplerBuffer/isamplerBuffer/
// usamplerBuffer all lower to, whatever their sampled type - and equally what
// the imageBuffer family lowers to, which is correct here because SPIRV-Cross
// requires the same extension for those. The operand-count guard mirrors
// NormalizeRectCoordinatesPass, which reads the same operand.
if (type.NumInOperands() >= 2 &&
static_cast<spv::Dim>(type.GetSingleWordInOperand(1)) == spv::Dim::Buffer) {
return true;
}
}