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gl_shader_decompiler: replace std::get<> with std::get_if<> for macOS compatibility

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This commit is contained in:
ReinUsesLisp 2019-01-15 17:52:49 -03:00
parent 51de4e00a6
commit 1e40a4b343
1 changed files with 58 additions and 44 deletions
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102
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -112,20 +112,20 @@ static std::string GetTopologyName(Tegra::Shader::OutputTopology topology) {
static bool IsPrecise(Operation operand) {
const auto& meta = operand.GetMeta();
if (std::holds_alternative<MetaArithmetic>(meta)) {
return std::get<MetaArithmetic>(meta).precise;
if (const auto arithmetic = std::get_if<MetaArithmetic>(&meta)) {
return arithmetic->precise;
}
if (std::holds_alternative<MetaHalfArithmetic>(meta)) {
return std::get<MetaHalfArithmetic>(meta).precise;
if (const auto half_arithmetic = std::get_if<MetaHalfArithmetic>(&meta)) {
return half_arithmetic->precise;
}
return false;
}
static bool IsPrecise(Node node) {
if (!std::holds_alternative<OperationNode>(*node)) {
return false;
if (const auto operation = std::get_if<OperationNode>(node)) {
return IsPrecise(*operation);
}
return IsPrecise(std::get<OperationNode>(*node));
return false;
}
class GLSLDecompiler final {
@ -601,12 +601,12 @@ private:
case Type::Uint:
return "ftou(" + value + ')';
case Type::HalfFloat:
if (!std::holds_alternative<MetaHalfArithmetic>(operation.GetMeta())) {
const auto half_meta = std::get_if<MetaHalfArithmetic>(&operation.GetMeta());
if (!half_meta) {
value = "toHalf2(" + value + ')';
}
const auto& half_meta = std::get<MetaHalfArithmetic>(operation.GetMeta());
switch (half_meta.types.at(operand_index)) {
switch (half_meta->types.at(operand_index)) {
case Tegra::Shader::HalfType::H0_H1:
return "toHalf2(" + value + ')';
case Tegra::Shader::HalfType::F32:
@ -692,19 +692,20 @@ private:
bool is_extra_int = false) {
constexpr std::array<const char*, 4> coord_constructors = {"float", "vec2", "vec3", "vec4"};
const auto& meta = std::get<MetaTexture>(operation.GetMeta());
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
const auto count = static_cast<u32>(operation.GetOperandsCount());
ASSERT(meta);
std::string expr = func;
expr += '(';
expr += GetSampler(meta.sampler);
expr += GetSampler(meta->sampler);
expr += ", ";
expr += coord_constructors[meta.coords_count - 1];
expr += coord_constructors[meta->coords_count - 1];
expr += '(';
for (u32 i = 0; i < count; ++i) {
const bool is_extra = i >= meta.coords_count;
const bool is_array = i == meta.array_index;
const bool is_extra = i >= meta->coords_count;
const bool is_array = i == meta->array_index;
std::string operand = [&]() {
if (is_extra && is_extra_int) {
@ -724,7 +725,7 @@ private:
expr += operand;
if (i + 1 == meta.coords_count) {
if (i + 1 == meta->coords_count) {
expr += ')';
}
if (i + 1 < count) {
@ -1108,38 +1109,46 @@ private:
}
std::string F4Texture(Operation operation) {
const auto meta = std::get<MetaTexture>(operation.GetMeta());
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
ASSERT(meta);
std::string expr = GenerateTexture(operation, "texture");
if (meta.sampler.IsShadow()) {
if (meta->sampler.IsShadow()) {
expr = "vec4(" + expr + ')';
}
return expr + GetSwizzle(meta.element);
return expr + GetSwizzle(meta->element);
}
std::string F4TextureLod(Operation operation) {
const auto meta = std::get<MetaTexture>(operation.GetMeta());
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
ASSERT(meta);
std::string expr = GenerateTexture(operation, "textureLod");
if (meta.sampler.IsShadow()) {
if (meta->sampler.IsShadow()) {
expr = "vec4(" + expr + ')';
}
return expr + GetSwizzle(meta.element);
return expr + GetSwizzle(meta->element);
}
std::string F4TextureGather(Operation operation) {
const auto meta = std::get<MetaTexture>(operation.GetMeta());
return GenerateTexture(operation, "textureGather", !meta.sampler.IsShadow()) +
GetSwizzle(meta.element);
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
ASSERT(meta);
return GenerateTexture(operation, "textureGather", !meta->sampler.IsShadow()) +
GetSwizzle(meta->element);
}
std::string F4TextureQueryDimensions(Operation operation) {
const auto& meta = std::get<MetaTexture>(operation.GetMeta());
const std::string sampler = GetSampler(meta.sampler);
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
ASSERT(meta);
const std::string sampler = GetSampler(meta->sampler);
const std::string lod = VisitOperand(operation, 0, Type::Int);
switch (meta.element) {
switch (meta->element) {
case 0:
case 1:
return "textureSize(" + sampler + ", " + lod + ')' + GetSwizzle(meta.element);
return "textureSize(" + sampler + ", " + lod + ')' + GetSwizzle(meta->element);
case 2:
return "0";
case 3:
@ -1150,29 +1159,32 @@ private:
}
std::string F4TextureQueryLod(Operation operation) {
const auto& meta = std::get<MetaTexture>(operation.GetMeta());
if (meta.element < 2) {
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
ASSERT(meta);
if (meta->element < 2) {
return "itof(int((" + GenerateTexture(operation, "textureQueryLod") + " * vec2(256))" +
GetSwizzle(meta.element) + "))";
GetSwizzle(meta->element) + "))";
}
return "0";
}
std::string F4TexelFetch(Operation operation) {
constexpr std::array<const char*, 4> constructors = {"int", "ivec2", "ivec3", "ivec4"};
const auto& meta = std::get<MetaTexture>(operation.GetMeta());
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
const auto count = static_cast<u32>(operation.GetOperandsCount());
ASSERT(meta);
std::string expr = "texelFetch(";
expr += GetSampler(meta.sampler);
expr += GetSampler(meta->sampler);
expr += ", ";
expr += constructors[meta.coords_count - 1];
expr += constructors[meta->coords_count - 1];
expr += '(';
for (u32 i = 0; i < count; ++i) {
expr += VisitOperand(operation, i, Type::Int);
if (i + 1 == meta.coords_count) {
if (i + 1 == meta->coords_count) {
expr += ')';
}
if (i + 1 < count) {
@ -1180,26 +1192,28 @@ private:
}
}
expr += ')';
return expr + GetSwizzle(meta.element);
return expr + GetSwizzle(meta->element);
}
std::string Branch(Operation operation) {
const auto target = std::get<ImmediateNode>(*operation[0]);
code.AddLine(fmt::format("jmp_to = 0x{:x}u;", target.GetValue()));
const auto target = std::get_if<ImmediateNode>(operation[0]);
UNIMPLEMENTED_IF(!target);
code.AddLine(fmt::format("jmp_to = 0x{:x}u;", target->GetValue()));
code.AddLine("break;");
return {};
}
std::string PushFlowStack(Operation operation) {
const auto target = std::get<ImmediateNode>(*operation[0]);
code.AddLine(fmt::format("flow_stack[flow_stack_top] = 0x{:x}u;", target.GetValue()));
code.AddLine("flow_stack_top++;");
const auto target = std::get_if<ImmediateNode>(operation[0]);
UNIMPLEMENTED_IF(!target);
code.AddLine(fmt::format("flow_stack[flow_stack_top++] = 0x{:x}u;", target->GetValue()));
return {};
}
std::string PopFlowStack(Operation operation) {
code.AddLine("flow_stack_top--;");
code.AddLine("jmp_to = flow_stack[flow_stack_top];");
code.AddLine("jmp_to = flow_stack[--flow_stack_top];");
code.AddLine("break;");
return {};
}