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-rw-r--r--src/video_core/engines/shader_header.h55
-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp34
-rw-r--r--src/video_core/renderer_vulkan/vk_shader_decompiler.cpp17
-rw-r--r--src/video_core/shader/decode/other.cpp36
4 files changed, 74 insertions, 68 deletions
diff --git a/src/video_core/engines/shader_header.h b/src/video_core/engines/shader_header.h
index bc80661d8..72e2a33d5 100644
--- a/src/video_core/engines/shader_header.h
+++ b/src/video_core/engines/shader_header.h
@@ -4,6 +4,9 @@
#pragma once
+#include <array>
+#include <optional>
+
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
@@ -16,7 +19,7 @@ enum class OutputTopology : u32 {
TriangleStrip = 7,
};
-enum class AttributeUse : u8 {
+enum class PixelImap : u8 {
Unused = 0,
Constant = 1,
Perspective = 2,
@@ -24,7 +27,7 @@ enum class AttributeUse : u8 {
};
// Documentation in:
-// http://download.nvidia.com/open-gpu-doc/Shader-Program-Header/1/Shader-Program-Header.html#ImapTexture
+// http://download.nvidia.com/open-gpu-doc/Shader-Program-Header/1/Shader-Program-Header.html
struct Header {
union {
BitField<0, 5, u32> sph_type;
@@ -59,8 +62,8 @@ struct Header {
union {
BitField<0, 12, u32> max_output_vertices;
BitField<12, 8, u32> store_req_start; // NOTE: not used by geometry shaders.
- BitField<24, 4, u32> reserved;
- BitField<12, 8, u32> store_req_end; // NOTE: not used by geometry shaders.
+ BitField<20, 4, u32> reserved;
+ BitField<24, 8, u32> store_req_end; // NOTE: not used by geometry shaders.
} common4{};
union {
@@ -93,17 +96,20 @@ struct Header {
struct {
INSERT_UNION_PADDING_BYTES(3); // ImapSystemValuesA
INSERT_UNION_PADDING_BYTES(1); // ImapSystemValuesB
+
union {
- BitField<0, 2, AttributeUse> x;
- BitField<2, 2, AttributeUse> y;
- BitField<4, 2, AttributeUse> w;
- BitField<6, 2, AttributeUse> z;
+ BitField<0, 2, PixelImap> x;
+ BitField<2, 2, PixelImap> y;
+ BitField<4, 2, PixelImap> z;
+ BitField<6, 2, PixelImap> w;
u8 raw;
} imap_generic_vector[32];
+
INSERT_UNION_PADDING_BYTES(2); // ImapColor
INSERT_UNION_PADDING_BYTES(2); // ImapSystemValuesC
INSERT_UNION_PADDING_BYTES(10); // ImapFixedFncTexture[10]
INSERT_UNION_PADDING_BYTES(2); // ImapReserved
+
struct {
u32 target;
union {
@@ -112,31 +118,30 @@ struct Header {
BitField<2, 30, u32> reserved;
};
} omap;
+
bool IsColorComponentOutputEnabled(u32 render_target, u32 component) const {
const u32 bit = render_target * 4 + component;
return omap.target & (1 << bit);
}
- AttributeUse GetAttributeIndexUse(u32 attribute, u32 index) const {
- return static_cast<AttributeUse>(
- (imap_generic_vector[attribute].raw >> (index * 2)) & 0x03);
- }
- AttributeUse GetAttributeUse(u32 attribute) const {
- AttributeUse result = AttributeUse::Unused;
- for (u32 i = 0; i < 4; i++) {
- const auto index = GetAttributeIndexUse(attribute, i);
- if (index == AttributeUse::Unused) {
- continue;
- }
- if (result == AttributeUse::Unused || result == index) {
- result = index;
+
+ PixelImap GetPixelImap(u32 attribute) const {
+ const auto get_index = [this, attribute](u32 index) {
+ return static_cast<PixelImap>(
+ (imap_generic_vector[attribute].raw >> (index * 2)) & 3);
+ };
+
+ std::optional<PixelImap> result;
+ for (u32 component = 0; component < 4; ++component) {
+ const PixelImap index = get_index(component);
+ if (index == PixelImap::Unused) {
continue;
}
- LOG_CRITICAL(HW_GPU, "Generic Attribute Conflict in Interpolation Mode");
- if (index == AttributeUse::Perspective) {
- result = index;
+ if (result && result != index) {
+ LOG_CRITICAL(HW_GPU, "Generic attribute conflict in interpolation mode");
}
+ result = index;
}
- return result;
+ return result.value_or(PixelImap::Unused);
}
} ps;
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index c7d24cf14..160ae4340 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -31,11 +31,11 @@ namespace {
using Tegra::Engines::ShaderType;
using Tegra::Shader::Attribute;
-using Tegra::Shader::AttributeUse;
using Tegra::Shader::Header;
using Tegra::Shader::IpaInterpMode;
using Tegra::Shader::IpaMode;
using Tegra::Shader::IpaSampleMode;
+using Tegra::Shader::PixelImap;
using Tegra::Shader::Register;
using VideoCommon::Shader::BuildTransformFeedback;
using VideoCommon::Shader::Registry;
@@ -702,20 +702,19 @@ private:
code.AddNewLine();
}
- std::string GetInputFlags(AttributeUse attribute) {
+ const char* GetInputFlags(PixelImap attribute) {
switch (attribute) {
- case AttributeUse::Perspective:
- // Default, Smooth
- return {};
- case AttributeUse::Constant:
- return "flat ";
- case AttributeUse::ScreenLinear:
- return "noperspective ";
- default:
- case AttributeUse::Unused:
- UNIMPLEMENTED_MSG("Unknown attribute usage index={}", static_cast<u32>(attribute));
- return {};
+ case PixelImap::Perspective:
+ return "smooth";
+ case PixelImap::Constant:
+ return "flat";
+ case PixelImap::ScreenLinear:
+ return "noperspective";
+ case PixelImap::Unused:
+ break;
}
+ UNIMPLEMENTED_MSG("Unknown attribute usage index={}", static_cast<int>(attribute));
+ return {};
}
void DeclareInputAttributes() {
@@ -749,8 +748,8 @@ private:
std::string suffix;
if (stage == ShaderType::Fragment) {
- const auto input_mode{header.ps.GetAttributeUse(location)};
- if (skip_unused && input_mode == AttributeUse::Unused) {
+ const auto input_mode{header.ps.GetPixelImap(location)};
+ if (input_mode == PixelImap::Unused) {
return;
}
suffix = GetInputFlags(input_mode);
@@ -927,7 +926,7 @@ private:
const u32 address{generic_base + index * generic_stride + element * element_stride};
const bool declared = stage != ShaderType::Fragment ||
- header.ps.GetAttributeUse(index) != AttributeUse::Unused;
+ header.ps.GetPixelImap(index) != PixelImap::Unused;
const std::string value =
declared ? ReadAttribute(attribute, element).AsFloat() : "0.0f";
code.AddLine("case 0x{:X}U: return {};", address, value);
@@ -1142,8 +1141,7 @@ private:
GetSwizzle(element)),
Type::Float};
case ShaderType::Fragment:
- return {element == 3 ? "1.0f" : ("gl_FragCoord"s + GetSwizzle(element)),
- Type::Float};
+ return {"gl_FragCoord"s + GetSwizzle(element), Type::Float};
default:
UNREACHABLE();
}
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
index d67f08cf9..b9f9e2714 100644
--- a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
+++ b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
@@ -35,7 +35,7 @@ namespace {
using Sirit::Id;
using Tegra::Engines::ShaderType;
using Tegra::Shader::Attribute;
-using Tegra::Shader::AttributeUse;
+using Tegra::Shader::PixelImap;
using Tegra::Shader::Register;
using namespace VideoCommon::Shader;
@@ -752,16 +752,16 @@ private:
if (stage != ShaderType::Fragment) {
continue;
}
- switch (header.ps.GetAttributeUse(location)) {
- case AttributeUse::Constant:
+ switch (header.ps.GetPixelImap(location)) {
+ case PixelImap::Constant:
Decorate(id, spv::Decoration::Flat);
break;
- case AttributeUse::ScreenLinear:
- Decorate(id, spv::Decoration::NoPerspective);
- break;
- case AttributeUse::Perspective:
+ case PixelImap::Perspective:
// Default
break;
+ case PixelImap::ScreenLinear:
+ Decorate(id, spv::Decoration::NoPerspective);
+ break;
default:
UNREACHABLE_MSG("Unused attribute being fetched");
}
@@ -1145,9 +1145,6 @@ private:
switch (attribute) {
case Attribute::Index::Position: {
if (stage == ShaderType::Fragment) {
- if (element == 3) {
- return {Constant(t_float, 1.0f), Type::Float};
- }
return {OpLoad(t_float, AccessElement(t_in_float, frag_coord, element)),
Type::Float};
}
diff --git a/src/video_core/shader/decode/other.cpp b/src/video_core/shader/decode/other.cpp
index 4944e9d69..e6edec459 100644
--- a/src/video_core/shader/decode/other.cpp
+++ b/src/video_core/shader/decode/other.cpp
@@ -11,12 +11,17 @@
namespace VideoCommon::Shader {
+using std::move;
using Tegra::Shader::ConditionCode;
using Tegra::Shader::Instruction;
+using Tegra::Shader::IpaInterpMode;
using Tegra::Shader::OpCode;
+using Tegra::Shader::PixelImap;
using Tegra::Shader::Register;
using Tegra::Shader::SystemVariable;
+using Index = Tegra::Shader::Attribute::Index;
+
u32 ShaderIR::DecodeOther(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
const auto opcode = OpCode::Decode(instr);
@@ -213,27 +218,28 @@ u32 ShaderIR::DecodeOther(NodeBlock& bb, u32 pc) {
}
case OpCode::Id::IPA: {
const bool is_physical = instr.ipa.idx && instr.gpr8.Value() != 0xff;
-
const auto attribute = instr.attribute.fmt28;
- const Tegra::Shader::IpaMode input_mode{instr.ipa.interp_mode.Value(),
- instr.ipa.sample_mode.Value()};
+ const Index index = attribute.index;
Node value = is_physical ? GetPhysicalInputAttribute(instr.gpr8)
- : GetInputAttribute(attribute.index, attribute.element);
- const Tegra::Shader::Attribute::Index index = attribute.index.Value();
- const bool is_generic = index >= Tegra::Shader::Attribute::Index::Attribute_0 &&
- index <= Tegra::Shader::Attribute::Index::Attribute_31;
- if (is_generic || is_physical) {
- // TODO(Blinkhawk): There are cases where a perspective attribute use PASS.
- // In theory by setting them as perspective, OpenGL does the perspective correction.
- // A way must figured to reverse the last step of it.
- if (input_mode.interpolation_mode == Tegra::Shader::IpaInterpMode::Multiply) {
- value = Operation(OperationCode::FMul, PRECISE, value, GetRegister(instr.gpr20));
+ : GetInputAttribute(index, attribute.element);
+
+ // Code taken from Ryujinx.
+ if (index >= Index::Attribute_0 && index <= Index::Attribute_31) {
+ const u32 location = static_cast<u32>(index) - static_cast<u32>(Index::Attribute_0);
+ if (header.ps.GetPixelImap(location) == PixelImap::Perspective) {
+ Node position_w = GetInputAttribute(Index::Position, 3);
+ value = Operation(OperationCode::FMul, move(value), move(position_w));
}
}
- value = GetSaturatedFloat(value, instr.ipa.saturate);
- SetRegister(bb, instr.gpr0, value);
+ if (instr.ipa.interp_mode == IpaInterpMode::Multiply) {
+ value = Operation(OperationCode::FMul, move(value), GetRegister(instr.gpr20));
+ }
+
+ value = GetSaturatedFloat(move(value), instr.ipa.saturate);
+
+ SetRegister(bb, instr.gpr0, move(value));
break;
}
case OpCode::Id::OUT_R: {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 14:11:55 +0100