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-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp90
1 files changed, 56 insertions, 34 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 0389c2143..a311dbcfe 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -48,10 +48,10 @@ class ExprDecompiler;
enum class Type { Void, Bool, Bool2, Float, Int, Uint, HalfFloat };
-struct TextureAoffi {};
+struct TextureOffset {};
struct TextureDerivates {};
using TextureArgument = std::pair<Type, Node>;
-using TextureIR = std::variant<TextureAoffi, TextureDerivates, TextureArgument>;
+using TextureIR = std::variant<TextureOffset, TextureDerivates, TextureArgument>;
constexpr u32 MAX_CONSTBUFFER_ELEMENTS =
static_cast<u32>(Maxwell::MaxConstBufferSize) / (4 * sizeof(float));
@@ -1077,7 +1077,7 @@ private:
}
std::string GenerateTexture(Operation operation, const std::string& function_suffix,
- const std::vector<TextureIR>& extras, bool sepparate_dc = false) {
+ const std::vector<TextureIR>& extras, bool separate_dc = false) {
constexpr std::array coord_constructors = {"float", "vec2", "vec3", "vec4"};
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
@@ -1090,10 +1090,12 @@ private:
std::string expr = "texture" + function_suffix;
if (!meta->aoffi.empty()) {
expr += "Offset";
+ } else if (!meta->ptp.empty()) {
+ expr += "Offsets";
}
expr += '(' + GetSampler(meta->sampler) + ", ";
expr += coord_constructors.at(count + (has_array ? 1 : 0) +
- (has_shadow && !sepparate_dc ? 1 : 0) - 1);
+ (has_shadow && !separate_dc ? 1 : 0) - 1);
expr += '(';
for (std::size_t i = 0; i < count; ++i) {
expr += Visit(operation[i]).AsFloat();
@@ -1106,7 +1108,7 @@ private:
expr += ", float(" + Visit(meta->array).AsInt() + ')';
}
if (has_shadow) {
- if (sepparate_dc) {
+ if (separate_dc) {
expr += "), " + Visit(meta->depth_compare).AsFloat();
} else {
expr += ", " + Visit(meta->depth_compare).AsFloat() + ')';
@@ -1118,8 +1120,12 @@ private:
for (const auto& variant : extras) {
if (const auto argument = std::get_if<TextureArgument>(&variant)) {
expr += GenerateTextureArgument(*argument);
- } else if (std::holds_alternative<TextureAoffi>(variant)) {
- expr += GenerateTextureAoffi(meta->aoffi);
+ } else if (std::holds_alternative<TextureOffset>(variant)) {
+ if (!meta->aoffi.empty()) {
+ expr += GenerateTextureAoffi(meta->aoffi);
+ } else if (!meta->ptp.empty()) {
+ expr += GenerateTexturePtp(meta->ptp);
+ }
} else if (std::holds_alternative<TextureDerivates>(variant)) {
expr += GenerateTextureDerivates(meta->derivates);
} else {
@@ -1160,6 +1166,20 @@ private:
return expr;
}
+ std::string ReadTextureOffset(const Node& value) {
+ if (const auto immediate = std::get_if<ImmediateNode>(&*value)) {
+ // Inline the string as an immediate integer in GLSL (AOFFI arguments are required
+ // to be constant by the standard).
+ return std::to_string(static_cast<s32>(immediate->GetValue()));
+ } else if (device.HasVariableAoffi()) {
+ // Avoid using variable AOFFI on unsupported devices.
+ return Visit(value).AsInt();
+ } else {
+ // Insert 0 on devices not supporting variable AOFFI.
+ return "0";
+ }
+ }
+
std::string GenerateTextureAoffi(const std::vector<Node>& aoffi) {
if (aoffi.empty()) {
return {};
@@ -1170,18 +1190,7 @@ private:
expr += '(';
for (std::size_t index = 0; index < aoffi.size(); ++index) {
- const auto operand{aoffi.at(index)};
- if (const auto immediate = std::get_if<ImmediateNode>(&*operand)) {
- // Inline the string as an immediate integer in GLSL (AOFFI arguments are required
- // to be constant by the standard).
- expr += std::to_string(static_cast<s32>(immediate->GetValue()));
- } else if (device.HasVariableAoffi()) {
- // Avoid using variable AOFFI on unsupported devices.
- expr += Visit(operand).AsInt();
- } else {
- // Insert 0 on devices not supporting variable AOFFI.
- expr += '0';
- }
+ expr += ReadTextureOffset(aoffi.at(index));
if (index + 1 < aoffi.size()) {
expr += ", ";
}
@@ -1191,6 +1200,20 @@ private:
return expr;
}
+ std::string GenerateTexturePtp(const std::vector<Node>& ptp) {
+ static constexpr std::size_t num_vectors = 4;
+ ASSERT(ptp.size() == num_vectors * 2);
+
+ std::string expr = ", ivec2[](";
+ for (std::size_t vector = 0; vector < num_vectors; ++vector) {
+ const bool has_next = vector + 1 < num_vectors;
+ expr += fmt::format("ivec2({}, {}){}", ReadTextureOffset(ptp.at(vector * 2)),
+ ReadTextureOffset(ptp.at(vector * 2 + 1)), has_next ? ", " : "");
+ }
+ expr += ')';
+ return expr;
+ }
+
std::string GenerateTextureDerivates(const std::vector<Node>& derivates) {
if (derivates.empty()) {
return {};
@@ -1689,7 +1712,7 @@ private:
ASSERT(meta);
std::string expr = GenerateTexture(
- operation, "", {TextureAoffi{}, TextureArgument{Type::Float, meta->bias}});
+ operation, "", {TextureOffset{}, TextureArgument{Type::Float, meta->bias}});
if (meta->sampler.IsShadow()) {
expr = "vec4(" + expr + ')';
}
@@ -1701,7 +1724,7 @@ private:
ASSERT(meta);
std::string expr = GenerateTexture(
- operation, "Lod", {TextureArgument{Type::Float, meta->lod}, TextureAoffi{}});
+ operation, "Lod", {TextureArgument{Type::Float, meta->lod}, TextureOffset{}});
if (meta->sampler.IsShadow()) {
expr = "vec4(" + expr + ')';
}
@@ -1709,21 +1732,19 @@ private:
}
Expression TextureGather(Operation operation) {
- const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
- ASSERT(meta);
+ const auto& meta = std::get<MetaTexture>(operation.GetMeta());
- const auto type = meta->sampler.IsShadow() ? Type::Float : Type::Int;
- if (meta->sampler.IsShadow()) {
- return {GenerateTexture(operation, "Gather", {TextureAoffi{}}, true) +
- GetSwizzle(meta->element),
- Type::Float};
+ const auto type = meta.sampler.IsShadow() ? Type::Float : Type::Int;
+ const bool separate_dc = meta.sampler.IsShadow();
+
+ std::vector<TextureIR> ir;
+ if (meta.sampler.IsShadow()) {
+ ir = {TextureOffset{}};
} else {
- return {GenerateTexture(operation, "Gather",
- {TextureAoffi{}, TextureArgument{type, meta->component}},
- false) +
- GetSwizzle(meta->element),
- Type::Float};
+ ir = {TextureOffset{}, TextureArgument{type, meta.component}};
}
+ return {GenerateTexture(operation, "Gather", ir, separate_dc) + GetSwizzle(meta.element),
+ Type::Float};
}
Expression TextureQueryDimensions(Operation operation) {
@@ -1794,7 +1815,8 @@ private:
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
ASSERT(meta);
- std::string expr = GenerateTexture(operation, "Grad", {TextureDerivates{}, TextureAoffi{}});
+ std::string expr =
+ GenerateTexture(operation, "Grad", {TextureDerivates{}, TextureOffset{}});
return {std::move(expr) + GetSwizzle(meta->element), Type::Float};
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 11:01:37 +0200