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-rw-r--r--src/common/quaternion.h5
-rw-r--r--src/common/vector_math.h7
-rw-r--r--src/core/hle/service/dlp/dlp_clnt.cpp21
-rw-r--r--src/core/hle/service/dlp/dlp_fkcl.cpp18
-rw-r--r--src/core/hle/service/dlp/dlp_srvr.cpp9
-rw-r--r--src/video_core/CMakeLists.txt2
-rw-r--r--src/video_core/command_processor.cpp62
-rw-r--r--src/video_core/pica_state.h2
-rw-r--r--src/video_core/regs_pipeline.h9
-rw-r--r--src/video_core/swrasterizer/clipper.cpp11
-rw-r--r--src/video_core/swrasterizer/lighting.cpp250
-rw-r--r--src/video_core/swrasterizer/lighting.h18
-rw-r--r--src/video_core/swrasterizer/rasterizer.cpp29
13 files changed, 404 insertions, 39 deletions
diff --git a/src/common/quaternion.h b/src/common/quaternion.h
index 84ac82ed3..77f626bcb 100644
--- a/src/common/quaternion.h
+++ b/src/common/quaternion.h
@@ -30,6 +30,11 @@ public:
return {xyz * other.w + other.xyz * w + Cross(xyz, other.xyz),
w * other.w - Dot(xyz, other.xyz)};
}
+
+ Quaternion<T> Normalized() const {
+ T length = std::sqrt(xyz.Length2() + w * w);
+ return {xyz / length, w / length};
+ }
};
template <typename T>
diff --git a/src/common/vector_math.h b/src/common/vector_math.h
index c7a461a1e..6e2a5ad60 100644
--- a/src/common/vector_math.h
+++ b/src/common/vector_math.h
@@ -31,7 +31,6 @@
#pragma once
#include <cmath>
-#include <type_traits>
namespace Math {
@@ -90,7 +89,7 @@ public:
x -= other.x;
y -= other.y;
}
- template <typename Q = T, class = typename std::enable_if<std::is_signed<Q>::value>::type>
+
Vec2<decltype(-T{})> operator-() const {
return MakeVec(-x, -y);
}
@@ -247,7 +246,7 @@ public:
y -= other.y;
z -= other.z;
}
- template <typename Q = T, class = typename std::enable_if<std::is_signed<Q>::value>::type>
+
Vec3<decltype(-T{})> operator-() const {
return MakeVec(-x, -y, -z);
}
@@ -462,7 +461,7 @@ public:
z -= other.z;
w -= other.w;
}
- template <typename Q = T, class = typename std::enable_if<std::is_signed<Q>::value>::type>
+
Vec4<decltype(-T{})> operator-() const {
return MakeVec(-x, -y, -z, -w);
}
diff --git a/src/core/hle/service/dlp/dlp_clnt.cpp b/src/core/hle/service/dlp/dlp_clnt.cpp
index 56f934b3f..6f2bf2061 100644
--- a/src/core/hle/service/dlp/dlp_clnt.cpp
+++ b/src/core/hle/service/dlp/dlp_clnt.cpp
@@ -8,7 +8,26 @@ namespace Service {
namespace DLP {
const Interface::FunctionInfo FunctionTable[] = {
- {0x000100C3, nullptr, "Initialize"}, {0x00110000, nullptr, "GetWirelessRebootPassphrase"},
+ {0x000100C3, nullptr, "Initialize"},
+ {0x00020000, nullptr, "Finalize"},
+ {0x00030000, nullptr, "GetEventDesc"},
+ {0x00040000, nullptr, "GetChannel"},
+ {0x00050180, nullptr, "StartScan"},
+ {0x00060000, nullptr, "StopScan"},
+ {0x00070080, nullptr, "GetServerInfo"},
+ {0x00080100, nullptr, "GetTitleInfo"},
+ {0x00090040, nullptr, "GetTitleInfoInOrder"},
+ {0x000A0080, nullptr, "DeleteScanInfo"},
+ {0x000B0100, nullptr, "PrepareForSystemDownload"},
+ {0x000C0000, nullptr, "StartSystemDownload"},
+ {0x000D0100, nullptr, "StartTitleDownload"},
+ {0x000E0000, nullptr, "GetMyStatus"},
+ {0x000F0040, nullptr, "GetConnectingNodes"},
+ {0x00100040, nullptr, "GetNodeInfo"},
+ {0x00110000, nullptr, "GetWirelessRebootPassphrase"},
+ {0x00120000, nullptr, "StopSession"},
+ {0x00130100, nullptr, "GetCupVersion"},
+ {0x00140100, nullptr, "GetDupAvailability"},
};
DLP_CLNT_Interface::DLP_CLNT_Interface() {
diff --git a/src/core/hle/service/dlp/dlp_fkcl.cpp b/src/core/hle/service/dlp/dlp_fkcl.cpp
index 29b9d52e0..fe6be7d32 100644
--- a/src/core/hle/service/dlp/dlp_fkcl.cpp
+++ b/src/core/hle/service/dlp/dlp_fkcl.cpp
@@ -8,7 +8,23 @@ namespace Service {
namespace DLP {
const Interface::FunctionInfo FunctionTable[] = {
- {0x00010083, nullptr, "Initialize"}, {0x000F0000, nullptr, "GetWirelessRebootPassphrase"},
+ {0x00010083, nullptr, "Initialize"},
+ {0x00020000, nullptr, "Finalize"},
+ {0x00030000, nullptr, "GetEventDesc"},
+ {0x00040000, nullptr, "GetChannels"},
+ {0x00050180, nullptr, "StartScan"},
+ {0x00060000, nullptr, "StopScan"},
+ {0x00070080, nullptr, "GetServerInfo"},
+ {0x00080100, nullptr, "GetTitleInfo"},
+ {0x00090040, nullptr, "GetTitleInfoInOrder"},
+ {0x000A0080, nullptr, "DeleteScanInfo"},
+ {0x000B0100, nullptr, "StartFakeSession"},
+ {0x000C0000, nullptr, "GetMyStatus"},
+ {0x000D0040, nullptr, "GetConnectingNodes"},
+ {0x000E0040, nullptr, "GetNodeInfo"},
+ {0x000F0000, nullptr, "GetWirelessRebootPassphrase"},
+ {0x00100000, nullptr, "StopSession"},
+ {0x00110203, nullptr, "Initialize2"},
};
DLP_FKCL_Interface::DLP_FKCL_Interface() {
diff --git a/src/core/hle/service/dlp/dlp_srvr.cpp b/src/core/hle/service/dlp/dlp_srvr.cpp
index 32cfa2c44..1bcea43d3 100644
--- a/src/core/hle/service/dlp/dlp_srvr.cpp
+++ b/src/core/hle/service/dlp/dlp_srvr.cpp
@@ -11,7 +11,7 @@
namespace Service {
namespace DLP {
-static void unk_0x000E0040(Interface* self) {
+static void IsChild(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
cmd_buff[1] = RESULT_SUCCESS.raw;
@@ -24,14 +24,19 @@ const Interface::FunctionInfo FunctionTable[] = {
{0x00010183, nullptr, "Initialize"},
{0x00020000, nullptr, "Finalize"},
{0x00030000, nullptr, "GetServerState"},
+ {0x00040000, nullptr, "GetEventDescription"},
{0x00050080, nullptr, "StartAccepting"},
+ {0x00060000, nullptr, "EndAccepting"},
{0x00070000, nullptr, "StartDistribution"},
{0x000800C0, nullptr, "SendWirelessRebootPassphrase"},
{0x00090040, nullptr, "AcceptClient"},
+ {0x000A0040, nullptr, "DisconnectClient"},
{0x000B0042, nullptr, "GetConnectingClients"},
{0x000C0040, nullptr, "GetClientInfo"},
{0x000D0040, nullptr, "GetClientState"},
- {0x000E0040, unk_0x000E0040, "unk_0x000E0040"},
+ {0x000E0040, IsChild, "IsChild"},
+ {0x000F0303, nullptr, "InitializeWithName"},
+ {0x00100000, nullptr, "GetDupNoticeNeed"},
};
DLP_SRVR_Interface::DLP_SRVR_Interface() {
diff --git a/src/video_core/CMakeLists.txt b/src/video_core/CMakeLists.txt
index 0961a3251..cffa4c952 100644
--- a/src/video_core/CMakeLists.txt
+++ b/src/video_core/CMakeLists.txt
@@ -15,6 +15,7 @@ set(SRCS
shader/shader_interpreter.cpp
swrasterizer/clipper.cpp
swrasterizer/framebuffer.cpp
+ swrasterizer/lighting.cpp
swrasterizer/proctex.cpp
swrasterizer/rasterizer.cpp
swrasterizer/swrasterizer.cpp
@@ -55,6 +56,7 @@ set(HEADERS
shader/shader_interpreter.h
swrasterizer/clipper.h
swrasterizer/framebuffer.h
+ swrasterizer/lighting.h
swrasterizer/proctex.h
swrasterizer/rasterizer.h
swrasterizer/swrasterizer.h
diff --git a/src/video_core/command_processor.cpp b/src/video_core/command_processor.cpp
index 4633a1df1..f98ca3302 100644
--- a/src/video_core/command_processor.cpp
+++ b/src/video_core/command_processor.cpp
@@ -119,27 +119,6 @@ static void WriteUniformFloatReg(ShaderRegs& config, Shader::ShaderSetup& setup,
}
}
-static void WriteProgramCode(ShaderRegs& config, Shader::ShaderSetup& setup,
- unsigned max_program_code_length, u32 value) {
- if (config.program.offset >= max_program_code_length) {
- LOG_ERROR(HW_GPU, "Invalid %s program offset %d", GetShaderSetupTypeName(setup),
- (int)config.program.offset);
- } else {
- setup.program_code[config.program.offset] = value;
- config.program.offset++;
- }
-}
-
-static void WriteSwizzlePatterns(ShaderRegs& config, Shader::ShaderSetup& setup, u32 value) {
- if (config.swizzle_patterns.offset >= setup.swizzle_data.size()) {
- LOG_ERROR(HW_GPU, "Invalid %s swizzle pattern offset %d", GetShaderSetupTypeName(setup),
- (int)config.swizzle_patterns.offset);
- } else {
- setup.swizzle_data[config.swizzle_patterns.offset] = value;
- config.swizzle_patterns.offset++;
- }
-}
-
static void WritePicaReg(u32 id, u32 value, u32 mask) {
auto& regs = g_state.regs;
@@ -458,7 +437,13 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
case PICA_REG_INDEX_WORKAROUND(gs.program.set_word[5], 0x2a1):
case PICA_REG_INDEX_WORKAROUND(gs.program.set_word[6], 0x2a2):
case PICA_REG_INDEX_WORKAROUND(gs.program.set_word[7], 0x2a3): {
- WriteProgramCode(g_state.regs.gs, g_state.gs, 4096, value);
+ u32& offset = g_state.regs.gs.program.offset;
+ if (offset >= 4096) {
+ LOG_ERROR(HW_GPU, "Invalid GS program offset %u", offset);
+ } else {
+ g_state.gs.program_code[offset] = value;
+ offset++;
+ }
break;
}
@@ -470,11 +455,18 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
case PICA_REG_INDEX_WORKAROUND(gs.swizzle_patterns.set_word[5], 0x2ab):
case PICA_REG_INDEX_WORKAROUND(gs.swizzle_patterns.set_word[6], 0x2ac):
case PICA_REG_INDEX_WORKAROUND(gs.swizzle_patterns.set_word[7], 0x2ad): {
- WriteSwizzlePatterns(g_state.regs.gs, g_state.gs, value);
+ u32& offset = g_state.regs.gs.swizzle_patterns.offset;
+ if (offset >= g_state.gs.swizzle_data.size()) {
+ LOG_ERROR(HW_GPU, "Invalid GS swizzle pattern offset %u", offset);
+ } else {
+ g_state.gs.swizzle_data[offset] = value;
+ offset++;
+ }
break;
}
case PICA_REG_INDEX(vs.bool_uniforms):
+ // TODO (wwylele): does regs.pipeline.gs_unit_exclusive_configuration affect this?
WriteUniformBoolReg(g_state.vs, g_state.regs.vs.bool_uniforms.Value());
break;
@@ -482,6 +474,7 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
case PICA_REG_INDEX_WORKAROUND(vs.int_uniforms[1], 0x2b2):
case PICA_REG_INDEX_WORKAROUND(vs.int_uniforms[2], 0x2b3):
case PICA_REG_INDEX_WORKAROUND(vs.int_uniforms[3], 0x2b4): {
+ // TODO (wwylele): does regs.pipeline.gs_unit_exclusive_configuration affect this?
unsigned index = (id - PICA_REG_INDEX_WORKAROUND(vs.int_uniforms[0], 0x2b1));
auto values = regs.vs.int_uniforms[index];
WriteUniformIntReg(g_state.vs, index,
@@ -497,6 +490,7 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
case PICA_REG_INDEX_WORKAROUND(vs.uniform_setup.set_value[5], 0x2c6):
case PICA_REG_INDEX_WORKAROUND(vs.uniform_setup.set_value[6], 0x2c7):
case PICA_REG_INDEX_WORKAROUND(vs.uniform_setup.set_value[7], 0x2c8): {
+ // TODO (wwylele): does regs.pipeline.gs_unit_exclusive_configuration affect this?
WriteUniformFloatReg(g_state.regs.vs, g_state.vs, vs_float_regs_counter,
vs_uniform_write_buffer, value);
break;
@@ -510,7 +504,16 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
case PICA_REG_INDEX_WORKAROUND(vs.program.set_word[5], 0x2d1):
case PICA_REG_INDEX_WORKAROUND(vs.program.set_word[6], 0x2d2):
case PICA_REG_INDEX_WORKAROUND(vs.program.set_word[7], 0x2d3): {
- WriteProgramCode(g_state.regs.vs, g_state.vs, 512, value);
+ u32& offset = g_state.regs.vs.program.offset;
+ if (offset >= 512) {
+ LOG_ERROR(HW_GPU, "Invalid VS program offset %u", offset);
+ } else {
+ g_state.vs.program_code[offset] = value;
+ if (!g_state.regs.pipeline.gs_unit_exclusive_configuration) {
+ g_state.gs.program_code[offset] = value;
+ }
+ offset++;
+ }
break;
}
@@ -522,7 +525,16 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
case PICA_REG_INDEX_WORKAROUND(vs.swizzle_patterns.set_word[5], 0x2db):
case PICA_REG_INDEX_WORKAROUND(vs.swizzle_patterns.set_word[6], 0x2dc):
case PICA_REG_INDEX_WORKAROUND(vs.swizzle_patterns.set_word[7], 0x2dd): {
- WriteSwizzlePatterns(g_state.regs.vs, g_state.vs, value);
+ u32& offset = g_state.regs.vs.swizzle_patterns.offset;
+ if (offset >= g_state.vs.swizzle_data.size()) {
+ LOG_ERROR(HW_GPU, "Invalid VS swizzle pattern offset %u", offset);
+ } else {
+ g_state.vs.swizzle_data[offset] = value;
+ if (!g_state.regs.pipeline.gs_unit_exclusive_configuration) {
+ g_state.gs.swizzle_data[offset] = value;
+ }
+ offset++;
+ }
break;
}
diff --git a/src/video_core/pica_state.h b/src/video_core/pica_state.h
index 2d23d34e6..864a2c9e6 100644
--- a/src/video_core/pica_state.h
+++ b/src/video_core/pica_state.h
@@ -79,7 +79,7 @@ struct State {
std::array<ColorDifferenceEntry, 256> color_diff_table;
} proctex;
- struct {
+ struct Lighting {
union LutEntry {
// Used for raw access
u32 raw;
diff --git a/src/video_core/regs_pipeline.h b/src/video_core/regs_pipeline.h
index 31c747d77..8b6369297 100644
--- a/src/video_core/regs_pipeline.h
+++ b/src/video_core/regs_pipeline.h
@@ -202,7 +202,14 @@ struct PipelineRegs {
/// Number of input attributes to the vertex shader minus 1
BitField<0, 4, u32> max_input_attrib_index;
- INSERT_PADDING_WORDS(2);
+ INSERT_PADDING_WORDS(1);
+
+ // The shader unit 3, which can be used for both vertex and geometry shader, gets its
+ // configuration depending on this register. If this is not set, unit 3 will share some
+ // configuration with other units. It is known that program code and swizzle pattern uploaded
+ // via regs.vs will be also uploaded to unit 3 if this is not set. Although very likely, it is
+ // still unclear whether uniforms and other configuration can be also shared.
+ BitField<0, 1, u32> gs_unit_exclusive_configuration;
enum class GPUMode : u32 {
Drawing = 0,
diff --git a/src/video_core/swrasterizer/clipper.cpp b/src/video_core/swrasterizer/clipper.cpp
index 6fb923756..7537689b7 100644
--- a/src/video_core/swrasterizer/clipper.cpp
+++ b/src/video_core/swrasterizer/clipper.cpp
@@ -95,6 +95,17 @@ void ProcessTriangle(const OutputVertex& v0, const OutputVertex& v1, const Outpu
static const size_t MAX_VERTICES = 9;
static_vector<Vertex, MAX_VERTICES> buffer_a = {v0, v1, v2};
static_vector<Vertex, MAX_VERTICES> buffer_b;
+
+ auto FlipQuaternionIfOpposite = [](auto& a, const auto& b) {
+ if (Math::Dot(a, b) < float24::Zero())
+ a = -a;
+ };
+
+ // Flip the quaternions if they are opposite to prevent interpolating them over the wrong
+ // direction.
+ FlipQuaternionIfOpposite(buffer_a[1].quat, buffer_a[0].quat);
+ FlipQuaternionIfOpposite(buffer_a[2].quat, buffer_a[0].quat);
+
auto* output_list = &buffer_a;
auto* input_list = &buffer_b;
diff --git a/src/video_core/swrasterizer/lighting.cpp b/src/video_core/swrasterizer/lighting.cpp
new file mode 100644
index 000000000..63088eee8
--- /dev/null
+++ b/src/video_core/swrasterizer/lighting.cpp
@@ -0,0 +1,250 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/math_util.h"
+#include "video_core/swrasterizer/lighting.h"
+
+namespace Pica {
+
+static float LookupLightingLut(const Pica::State::Lighting& lighting, size_t lut_index, u8 index,
+ float delta) {
+ ASSERT_MSG(lut_index < lighting.luts.size(), "Out of range lut");
+ ASSERT_MSG(index < lighting.luts[lut_index].size(), "Out of range index");
+
+ const auto& lut = lighting.luts[lut_index][index];
+
+ float lut_value = lut.ToFloat();
+ float lut_diff = lut.DiffToFloat();
+
+ return lut_value + lut_diff * delta;
+}
+
+std::tuple<Math::Vec4<u8>, Math::Vec4<u8>> ComputeFragmentsColors(
+ const Pica::LightingRegs& lighting, const Pica::State::Lighting& lighting_state,
+ const Math::Quaternion<float>& normquat, const Math::Vec3<float>& view) {
+
+ // TODO(Subv): Bump mapping
+ Math::Vec3<float> surface_normal = {0.0f, 0.0f, 1.0f};
+
+ if (lighting.config0.bump_mode != LightingRegs::LightingBumpMode::None) {
+ LOG_CRITICAL(HW_GPU, "unimplemented bump mapping");
+ UNIMPLEMENTED();
+ }
+
+ // Use the normalized the quaternion when performing the rotation
+ auto normal = Math::QuaternionRotate(normquat, surface_normal);
+
+ Math::Vec4<float> diffuse_sum = {0.0f, 0.0f, 0.0f, 1.0f};
+ Math::Vec4<float> specular_sum = {0.0f, 0.0f, 0.0f, 1.0f};
+
+ for (unsigned light_index = 0; light_index <= lighting.max_light_index; ++light_index) {
+ unsigned num = lighting.light_enable.GetNum(light_index);
+ const auto& light_config = lighting.light[num];
+
+ Math::Vec3<float> refl_value = {};
+ Math::Vec3<float> position = {float16::FromRaw(light_config.x).ToFloat32(),
+ float16::FromRaw(light_config.y).ToFloat32(),
+ float16::FromRaw(light_config.z).ToFloat32()};
+ Math::Vec3<float> light_vector;
+
+ if (light_config.config.directional)
+ light_vector = position;
+ else
+ light_vector = position + view;
+
+ light_vector.Normalize();
+
+ float dist_atten = 1.0f;
+ if (!lighting.IsDistAttenDisabled(num)) {
+ auto distance = (-view - position).Length();
+ float scale = Pica::float20::FromRaw(light_config.dist_atten_scale).ToFloat32();
+ float bias = Pica::float20::FromRaw(light_config.dist_atten_bias).ToFloat32();
+ size_t lut =
+ static_cast<size_t>(LightingRegs::LightingSampler::DistanceAttenuation) + num;
+
+ float sample_loc = MathUtil::Clamp(scale * distance + bias, 0.0f, 1.0f);
+
+ u8 lutindex =
+ static_cast<u8>(MathUtil::Clamp(std::floor(sample_loc * 256.0f), 0.0f, 255.0f));
+ float delta = sample_loc * 256 - lutindex;
+ dist_atten = LookupLightingLut(lighting_state, lut, lutindex, delta);
+ }
+
+ auto GetLutValue = [&](LightingRegs::LightingLutInput input, bool abs,
+ LightingRegs::LightingScale scale_enum,
+ LightingRegs::LightingSampler sampler) {
+ Math::Vec3<float> norm_view = view.Normalized();
+ Math::Vec3<float> half_angle = (norm_view + light_vector).Normalized();
+ float result = 0.0f;
+
+ switch (input) {
+ case LightingRegs::LightingLutInput::NH:
+ result = Math::Dot(normal, half_angle);
+ break;
+
+ case LightingRegs::LightingLutInput::VH:
+ result = Math::Dot(norm_view, half_angle);
+ break;
+
+ case LightingRegs::LightingLutInput::NV:
+ result = Math::Dot(normal, norm_view);
+ break;
+
+ case LightingRegs::LightingLutInput::LN:
+ result = Math::Dot(light_vector, normal);
+ break;
+
+ default:
+ LOG_CRITICAL(HW_GPU, "Unknown lighting LUT input %u\n", static_cast<u32>(input));
+ UNIMPLEMENTED();
+ result = 0.0f;
+ }
+
+ u8 index;
+ float delta;
+
+ if (abs) {
+ if (light_config.config.two_sided_diffuse)
+ result = std::abs(result);
+ else
+ result = std::max(result, 0.0f);
+
+ float flr = std::floor(result * 256.0f);
+ index = static_cast<u8>(MathUtil::Clamp(flr, 0.0f, 255.0f));
+ delta = result * 256 - index;
+ } else {
+ float flr = std::floor(result * 128.0f);
+ s8 signed_index = static_cast<s8>(MathUtil::Clamp(flr, -128.0f, 127.0f));
+ delta = result * 128.0f - signed_index;
+ index = static_cast<u8>(signed_index);
+ }
+
+ float scale = lighting.lut_scale.GetScale(scale_enum);
+ return scale *
+ LookupLightingLut(lighting_state, static_cast<size_t>(sampler), index, delta);
+ };
+
+ // Specular 0 component
+ float d0_lut_value = 1.0f;
+ if (lighting.config1.disable_lut_d0 == 0 &&
+ LightingRegs::IsLightingSamplerSupported(
+ lighting.config0.config, LightingRegs::LightingSampler::Distribution0)) {
+ d0_lut_value =
+ GetLutValue(lighting.lut_input.d0, lighting.abs_lut_input.disable_d0 == 0,
+ lighting.lut_scale.d0, LightingRegs::LightingSampler::Distribution0);
+ }
+
+ Math::Vec3<float> specular_0 = d0_lut_value * light_config.specular_0.ToVec3f();
+
+ // If enabled, lookup ReflectRed value, otherwise, 1.0 is used
+ if (lighting.config1.disable_lut_rr == 0 &&
+ LightingRegs::IsLightingSamplerSupported(lighting.config0.config,
+ LightingRegs::LightingSampler::ReflectRed)) {
+ refl_value.x =
+ GetLutValue(lighting.lut_input.rr, lighting.abs_lut_input.disable_rr == 0,
+ lighting.lut_scale.rr, LightingRegs::LightingSampler::ReflectRed);
+ } else {
+ refl_value.x = 1.0f;
+ }
+
+ // If enabled, lookup ReflectGreen value, otherwise, ReflectRed value is used
+ if (lighting.config1.disable_lut_rg == 0 &&
+ LightingRegs::IsLightingSamplerSupported(lighting.config0.config,
+ LightingRegs::LightingSampler::ReflectGreen)) {
+ refl_value.y =
+ GetLutValue(lighting.lut_input.rg, lighting.abs_lut_input.disable_rg == 0,
+ lighting.lut_scale.rg, LightingRegs::LightingSampler::ReflectGreen);
+ } else {
+ refl_value.y = refl_value.x;
+ }
+
+ // If enabled, lookup ReflectBlue value, otherwise, ReflectRed value is used
+ if (lighting.config1.disable_lut_rb == 0 &&
+ LightingRegs::IsLightingSamplerSupported(lighting.config0.config,
+ LightingRegs::LightingSampler::ReflectBlue)) {
+ refl_value.z =
+ GetLutValue(lighting.lut_input.rb, lighting.abs_lut_input.disable_rb == 0,
+ lighting.lut_scale.rb, LightingRegs::LightingSampler::ReflectBlue);
+ } else {
+ refl_value.z = refl_value.x;
+ }
+
+ // Specular 1 component
+ float d1_lut_value = 1.0f;
+ if (lighting.config1.disable_lut_d1 == 0 &&
+ LightingRegs::IsLightingSamplerSupported(
+ lighting.config0.config, LightingRegs::LightingSampler::Distribution1)) {
+ d1_lut_value =
+ GetLutValue(lighting.lut_input.d1, lighting.abs_lut_input.disable_d1 == 0,
+ lighting.lut_scale.d1, LightingRegs::LightingSampler::Distribution1);
+ }
+
+ Math::Vec3<float> specular_1 =
+ d1_lut_value * refl_value * light_config.specular_1.ToVec3f();
+
+ // Fresnel
+ if (lighting.config1.disable_lut_fr == 0 &&
+ LightingRegs::IsLightingSamplerSupported(lighting.config0.config,
+ LightingRegs::LightingSampler::Fresnel)) {
+
+ float lut_value =
+ GetLutValue(lighting.lut_input.fr, lighting.abs_lut_input.disable_fr == 0,
+ lighting.lut_scale.fr, LightingRegs::LightingSampler::Fresnel);
+
+ // Enabled for diffuse lighting alpha component
+ if (lighting.config0.fresnel_selector ==
+ LightingRegs::LightingFresnelSelector::PrimaryAlpha ||
+ lighting.config0.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) {
+ diffuse_sum.a() *= lut_value;
+ }
+
+ // Enabled for the specular lighting alpha component
+ if (lighting.config0.fresnel_selector ==
+ LightingRegs::LightingFresnelSelector::SecondaryAlpha ||
+ lighting.config0.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) {
+ specular_sum.a() *= lut_value;
+ }
+ }
+
+ auto dot_product = Math::Dot(light_vector, normal);
+
+ // Calculate clamp highlights before applying the two-sided diffuse configuration to the dot
+ // product.
+ float clamp_highlights = 1.0f;
+ if (lighting.config0.clamp_highlights) {
+ if (dot_product <= 0.0f)
+ clamp_highlights = 0.0f;
+ else
+ clamp_highlights = 1.0f;
+ }
+
+ if (light_config.config.two_sided_diffuse)
+ dot_product = std::abs(dot_product);
+ else
+ dot_product = std::max(dot_product, 0.0f);
+
+ auto diffuse =
+ light_config.diffuse.ToVec3f() * dot_product + light_config.ambient.ToVec3f();
+ diffuse_sum += Math::MakeVec(diffuse * dist_atten, 0.0f);
+
+ specular_sum +=
+ Math::MakeVec((specular_0 + specular_1) * clamp_highlights * dist_atten, 0.0f);
+ }
+
+ diffuse_sum += Math::MakeVec(lighting.global_ambient.ToVec3f(), 0.0f);
+
+ auto diffuse = Math::MakeVec<float>(MathUtil::Clamp(diffuse_sum.x, 0.0f, 1.0f) * 255,
+ MathUtil::Clamp(diffuse_sum.y, 0.0f, 1.0f) * 255,
+ MathUtil::Clamp(diffuse_sum.z, 0.0f, 1.0f) * 255,
+ MathUtil::Clamp(diffuse_sum.w, 0.0f, 1.0f) * 255)
+ .Cast<u8>();
+ auto specular = Math::MakeVec<float>(MathUtil::Clamp(specular_sum.x, 0.0f, 1.0f) * 255,
+ MathUtil::Clamp(specular_sum.y, 0.0f, 1.0f) * 255,
+ MathUtil::Clamp(specular_sum.z, 0.0f, 1.0f) * 255,
+ MathUtil::Clamp(specular_sum.w, 0.0f, 1.0f) * 255)
+ .Cast<u8>();
+ return {diffuse, specular};
+}
+
+} // namespace Pica
diff --git a/src/video_core/swrasterizer/lighting.h b/src/video_core/swrasterizer/lighting.h
new file mode 100644
index 000000000..438dca926
--- /dev/null
+++ b/src/video_core/swrasterizer/lighting.h
@@ -0,0 +1,18 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <tuple>
+#include "common/quaternion.h"
+#include "common/vector_math.h"
+#include "video_core/pica_state.h"
+
+namespace Pica {
+
+std::tuple<Math::Vec4<u8>, Math::Vec4<u8>> ComputeFragmentsColors(
+ const Pica::LightingRegs& lighting, const Pica::State::Lighting& lighting_state,
+ const Math::Quaternion<float>& normquat, const Math::Vec3<float>& view);
+
+} // namespace Pica
diff --git a/src/video_core/swrasterizer/rasterizer.cpp b/src/video_core/swrasterizer/rasterizer.cpp
index 512e81c08..fdc1df199 100644
--- a/src/video_core/swrasterizer/rasterizer.cpp
+++ b/src/video_core/swrasterizer/rasterizer.cpp
@@ -13,6 +13,7 @@
#include "common/logging/log.h"
#include "common/math_util.h"
#include "common/microprofile.h"
+#include "common/quaternion.h"
#include "common/vector_math.h"
#include "core/hw/gpu.h"
#include "core/memory.h"
@@ -24,6 +25,7 @@
#include "video_core/regs_texturing.h"
#include "video_core/shader/shader.h"
#include "video_core/swrasterizer/framebuffer.h"
+#include "video_core/swrasterizer/lighting.h"
#include "video_core/swrasterizer/proctex.h"
#include "video_core/swrasterizer/rasterizer.h"
#include "video_core/swrasterizer/texturing.h"
@@ -419,6 +421,26 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
regs.texturing.tev_combiner_buffer_color.a,
};
+ Math::Vec4<u8> primary_fragment_color = {0, 0, 0, 0};
+ Math::Vec4<u8> secondary_fragment_color = {0, 0, 0, 0};
+
+ if (!g_state.regs.lighting.disable) {
+ Math::Quaternion<float> normquat = Math::Quaternion<float>{
+ {GetInterpolatedAttribute(v0.quat.x, v1.quat.x, v2.quat.x).ToFloat32(),
+ GetInterpolatedAttribute(v0.quat.y, v1.quat.y, v2.quat.y).ToFloat32(),
+ GetInterpolatedAttribute(v0.quat.z, v1.quat.z, v2.quat.z).ToFloat32()},
+ GetInterpolatedAttribute(v0.quat.w, v1.quat.w, v2.quat.w).ToFloat32(),
+ }.Normalized();
+
+ Math::Vec3<float> view{
+ GetInterpolatedAttribute(v0.view.x, v1.view.x, v2.view.x).ToFloat32(),
+ GetInterpolatedAttribute(v0.view.y, v1.view.y, v2.view.y).ToFloat32(),
+ GetInterpolatedAttribute(v0.view.z, v1.view.z, v2.view.z).ToFloat32(),
+ };
+ std::tie(primary_fragment_color, secondary_fragment_color) =
+ ComputeFragmentsColors(g_state.regs.lighting, g_state.lighting, normquat, view);
+ }
+
for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size();
++tev_stage_index) {
const auto& tev_stage = tev_stages[tev_stage_index];
@@ -427,14 +449,13 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
auto GetSource = [&](Source source) -> Math::Vec4<u8> {
switch (source) {
case Source::PrimaryColor:
+ return primary_color;
- // HACK: Until we implement fragment lighting, use primary_color
case Source::PrimaryFragmentColor:
- return primary_color;
+ return primary_fragment_color;
- // HACK: Until we implement fragment lighting, use zero
case Source::SecondaryFragmentColor:
- return {0, 0, 0, 0};
+ return secondary_fragment_color;
case Source::Texture0:
return texture_color[0];
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 13:48:30 +0100