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Vulkan: Assume all 1D texture sampling is actually sampling a 2D texture.

This commit is contained in:
gibbed 2017-08-08 16:34:44 -05:00
parent fdef1e098d
commit 42533d39eb
2 changed files with 35 additions and 51 deletions
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81
src/xenia/gpu/spirv_shader_translator.cc
View File

@ -189,9 +189,6 @@ void SpirvShaderTranslator::StartTranslation() {
push_consts_ = b.createVariable(spv::StorageClass::StorageClassPushConstant,
push_constants_type, "push_consts");
image_1d_type_ =
b.makeImageType(float_type_, spv::Dim::Dim1D, false, false, false, 1,
spv::ImageFormat::ImageFormatUnknown);
image_2d_type_ =
b.makeImageType(float_type_, spv::Dim::Dim2D, false, false, false, 1,
spv::ImageFormat::ImageFormatUnknown);
@ -203,21 +200,19 @@ void SpirvShaderTranslator::StartTranslation() {
spv::ImageFormat::ImageFormatUnknown);
// Texture bindings
Id tex_t[] = {b.makeSampledImageType(image_1d_type_),
b.makeSampledImageType(image_2d_type_),
Id tex_t[] = {b.makeSampledImageType(image_2d_type_),
b.makeSampledImageType(image_3d_type_),
b.makeSampledImageType(image_cube_type_)};
Id tex_a_t[] = {b.makeArrayType(tex_t[0], b.makeUintConstant(32), 0),
b.makeArrayType(tex_t[1], b.makeUintConstant(32), 0),
b.makeArrayType(tex_t[2], b.makeUintConstant(32), 0),
b.makeArrayType(tex_t[3], b.makeUintConstant(32), 0)};
b.makeArrayType(tex_t[2], b.makeUintConstant(32), 0)};
// Create 4 texture types, all aliased on the same binding
for (int i = 0; i < 4; i++) {
// Create 3 texture types, all aliased on the same binding
for (int i = 0; i < 3; i++) {
tex_[i] = b.createVariable(spv::StorageClass::StorageClassUniformConstant,
tex_a_t[i],
xe::format_string("textures%dD", i + 1).c_str());
xe::format_string("textures%dD", i + 2).c_str());
b.addDecoration(tex_[i], spv::Decoration::DecorationDescriptorSet, 1);
b.addDecoration(tex_[i], spv::Decoration::DecorationBinding, 0);
}
@ -1296,17 +1291,15 @@ void SpirvShaderTranslator::ProcessTextureFetchInstruction(
uint32_t dim_idx = 0;
switch (instr.dimension) {
case TextureDimension::k1D: {
case TextureDimension::k1D:
case TextureDimension::k2D: {
dim_idx = 0;
} break;
case TextureDimension::k2D: {
case TextureDimension::k3D: {
dim_idx = 1;
} break;
case TextureDimension::k3D: {
dim_idx = 2;
} break;
case TextureDimension::kCube: {
dim_idx = 3;
dim_idx = 2;
} break;
default:
assert_unhandled_case(instr.dimension);
@ -1332,22 +1325,30 @@ void SpirvShaderTranslator::ProcessTextureFetchInstruction(
size = b.createTextureQueryCall(spv::Op::OpImageQuerySizeLod, params);
}
if (instr.dimension == TextureDimension::k1D &&
(instr.attributes.offset_x)) {
auto offset = b.makeFloatConstant(instr.attributes.offset_x + 0.5f);
offset = b.createBinOp(spv::Op::OpFDiv, float_type_, offset, size);
src = b.createBinOp(spv::Op::OpFAdd, float_type_, src, offset);
} else if (instr.dimension == TextureDimension::k2D &&
(instr.attributes.offset_x || instr.attributes.offset_y)) {
auto offset = b.makeCompositeConstant(
if (instr.dimension == TextureDimension::k1D) {
if (instr.attributes.offset_x) {
auto offset = b.makeFloatConstant(instr.attributes.offset_x + 0.5f);
offset = b.createBinOp(spv::Op::OpFDiv, float_type_, offset, size);
src = b.createBinOp(spv::Op::OpFAdd, float_type_, src, offset);
}
// https://msdn.microsoft.com/en-us/library/windows/desktop/bb944006.aspx
// "Because the runtime does not support 1D textures, the compiler will
// use a 2D texture with the knowledge that the y-coordinate is
// unimportant."
src = b.createCompositeConstruct(
vec2_float_type_,
std::vector<Id>(
{b.makeFloatConstant(instr.attributes.offset_x + 0.5f),
b.makeFloatConstant(instr.attributes.offset_y + 0.5f)}));
offset = b.createBinOp(spv::Op::OpFDiv, vec2_float_type_, offset, size);
src = b.createBinOp(spv::Op::OpFAdd, vec2_float_type_, src, offset);
std::vector<Id>({src, b.makeFloatConstant(0.0f)}));
} else if (instr.dimension == TextureDimension::k2D) {
if (instr.attributes.offset_x || instr.attributes.offset_y) {
auto offset = b.makeCompositeConstant(
vec2_float_type_,
std::vector<Id>(
{b.makeFloatConstant(instr.attributes.offset_x + 0.5f),
b.makeFloatConstant(instr.attributes.offset_y + 0.5f)}));
offset =
b.createBinOp(spv::Op::OpFDiv, vec2_float_type_, offset, size);
src = b.createBinOp(spv::Op::OpFAdd, vec2_float_type_, src, offset);
}
}
spv::Builder::TextureParameters params = {0};
@ -1367,23 +1368,7 @@ void SpirvShaderTranslator::ProcessTextureFetchInstruction(
b.createUnaryOp(spv::OpImage, b.getImageType(texture), texture);
switch (instr.dimension) {
case TextureDimension::k1D: {
spv::Builder::TextureParameters params;
std::memset(&params, 0, sizeof(params));
params.sampler = image;
params.lod = b.makeIntConstant(0);
auto size =
b.createTextureQueryCall(spv::Op::OpImageQuerySizeLod, params);
size = b.createUnaryOp(spv::Op::OpConvertUToF, float_type_, size);
auto weight = b.createBinOp(spv::Op::OpFMul, float_type_, size, src);
weight = CreateGlslStd450InstructionCall(
spv::NoPrecision, float_type_, spv::GLSLstd450::kFract, {weight});
dest = b.createOp(spv::Op::OpVectorShuffle, vec4_float_type_,
{weight, vec4_float_zero_, 0, 1, 1, 1});
} break;
case TextureDimension::k1D:
case TextureDimension::k2D: {
spv::Builder::TextureParameters params;
std::memset(&params, 0, sizeof(params));

5
src/xenia/gpu/spirv_shader_translator.h
View File

@ -137,8 +137,7 @@ class SpirvShaderTranslator : public ShaderTranslator {
spv::Id vec2_float_type_ = 0, vec3_float_type_ = 0, vec4_float_type_ = 0;
spv::Id vec4_int_type_ = 0, vec4_uint_type_ = 0;
spv::Id vec2_bool_type_ = 0, vec3_bool_type_ = 0, vec4_bool_type_ = 0;
spv::Id image_1d_type_ = 0, image_2d_type_ = 0, image_3d_type_ = 0,
image_cube_type_ = 0;
spv::Id image_2d_type_ = 0, image_3d_type_ = 0, image_cube_type_ = 0;
// Constants.
spv::Id vec4_float_zero_ = 0, vec4_float_one_ = 0;
@ -157,7 +156,7 @@ class SpirvShaderTranslator : public ShaderTranslator {
spv::Id vertex_idx_ = 0;
spv::Id frag_outputs_ = 0, frag_depth_ = 0;
spv::Id samplers_ = 0;
spv::Id tex_[4] = {0}; // Images {1D, 2D, 3D, Cube}
spv::Id tex_[3] = {0}; // Images {2D, 3D, Cube}
// SPIR-V IDs that are part of the in/out interface.
std::vector<spv::Id> interface_ids_;