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-rw-r--r--src/video_core/clipper.cpp2
-rw-r--r--src/video_core/pica.h63
-rw-r--r--src/video_core/pica_types.h56
-rw-r--r--src/video_core/shader/shader.cpp6
-rw-r--r--src/video_core/shader/shader.h8
5 files changed, 120 insertions, 15 deletions
diff --git a/src/video_core/clipper.cpp b/src/video_core/clipper.cpp
index 5d609da06..3a09d62f4 100644
--- a/src/video_core/clipper.cpp
+++ b/src/video_core/clipper.cpp
@@ -68,6 +68,8 @@ static void InitScreenCoordinates(OutputVertex& vtx)
float24 inv_w = float24::FromFloat32(1.f) / vtx.pos.w;
vtx.color *= inv_w;
+ vtx.view *= inv_w;
+ vtx.quat *= inv_w;
vtx.tc0 *= inv_w;
vtx.tc1 *= inv_w;
vtx.tc2 *= inv_w;
diff --git a/src/video_core/pica.h b/src/video_core/pica.h
index b09484de4..178a4b83f 100644
--- a/src/video_core/pica.h
+++ b/src/video_core/pica.h
@@ -241,7 +241,8 @@ struct Regs {
TextureConfig texture0;
INSERT_PADDING_WORDS(0x8);
BitField<0, 4, TextureFormat> texture0_format;
- INSERT_PADDING_WORDS(0x2);
+ BitField<0, 1, u32> fragment_lighting_enable;
+ INSERT_PADDING_WORDS(0x1);
TextureConfig texture1;
BitField<0, 4, TextureFormat> texture1_format;
INSERT_PADDING_WORDS(0x2);
@@ -645,6 +646,22 @@ struct Regs {
INSERT_PADDING_WORDS(0x20);
+ enum class LightingSampler {
+ Distribution0 = 0,
+ Distribution1 = 1,
+ Fresnel = 3,
+ Blue = 4,
+ Green = 5,
+ Red = 6,
+ SpotlightAttenuation = 8,
+ DistanceAttenuation = 16,
+ };
+
+ enum class LightingLutInput {
+ NH = 0, // Cosine of the angle between the normal and half-angle vectors
+ LN = 3, // Cosine of the angle between the light and the normal vectors
+ };
+
struct {
union LightColor {
BitField< 0, 10, u32> b;
@@ -664,17 +681,21 @@ struct Regs {
struct {
// Encoded as 16-bit floating point
- u16 x;
- u16 y;
- u16 z;
- u16 unk;
+ union {
+ BitField< 0, 16, u32> x;
+ BitField<16, 16, u32> y;
+ };
+ union {
+ BitField< 0, 16, u32> z;
+ };
INSERT_PADDING_WORDS(0x3);
- // 1.f if 0, otherwise 0.f
- BitField<0, 1, u32> w;
- } position;
-
+ union {
+ BitField<0, 1, u32> w; // 1.f if 0, otherwise 0.f
+ BitField<1, 1, u32> two_sided_diffuse; // when disabled, clamp dot-product to 0
+ };
+ };
BitField<0, 20, u32> dist_atten_bias;
BitField<0, 20, u32> dist_atten_scale;
@@ -722,7 +743,27 @@ struct Regs {
// registers is written to, the behavior will be the same.
u32 lut_data[8];
- INSERT_PADDING_WORDS(0x9);
+ union {
+ BitField< 1, 1, u32> d0;
+ BitField< 5, 1, u32> d1;
+ BitField< 9, 1, u32> sp;
+ BitField<13, 1, u32> fr;
+ BitField<17, 1, u32> rb;
+ BitField<21, 1, u32> rg;
+ BitField<25, 1, u32> rr;
+ } abs_lut_input;
+
+ union {
+ BitField< 0, 3, u32> d0;
+ BitField< 4, 3, u32> d1;
+ BitField< 8, 3, u32> sp;
+ BitField<12, 3, u32> fr;
+ BitField<16, 3, u32> rb;
+ BitField<20, 3, u32> rg;
+ BitField<24, 3, u32> rr;
+ } lut_input;
+
+ INSERT_PADDING_WORDS(0x7);
union {
// There are 8 light enable "slots", corresponding to the total number of lights
@@ -1095,6 +1136,7 @@ ASSERT_REG_POSITION(viewport_corner, 0x68);
ASSERT_REG_POSITION(texture0_enable, 0x80);
ASSERT_REG_POSITION(texture0, 0x81);
ASSERT_REG_POSITION(texture0_format, 0x8e);
+ASSERT_REG_POSITION(fragment_lighting_enable, 0x8f);
ASSERT_REG_POSITION(texture1, 0x91);
ASSERT_REG_POSITION(texture1_format, 0x96);
ASSERT_REG_POSITION(texture2, 0x99);
@@ -1109,6 +1151,7 @@ ASSERT_REG_POSITION(tev_stage5, 0xf8);
ASSERT_REG_POSITION(tev_combiner_buffer_color, 0xfd);
ASSERT_REG_POSITION(output_merger, 0x100);
ASSERT_REG_POSITION(framebuffer, 0x110);
+ASSERT_REG_POSITION(lighting, 0x140);
ASSERT_REG_POSITION(vertex_attributes, 0x200);
ASSERT_REG_POSITION(index_array, 0x227);
ASSERT_REG_POSITION(num_vertices, 0x228);
diff --git a/src/video_core/pica_types.h b/src/video_core/pica_types.h
index de798aa81..a34421c5d 100644
--- a/src/video_core/pica_types.h
+++ b/src/video_core/pica_types.h
@@ -121,4 +121,60 @@ private:
static_assert(sizeof(float24) == sizeof(float), "Shader JIT assumes float24 is implemented as a 32-bit float");
+struct float16 {
+ // 10 bit mantissa, 5 bit exponent, 1 bit sign
+ // TODO: No idea if this works as intended
+ static float16 FromRawFloat16(u32 hex) {
+ float16 ret;
+ if ((hex & 0xFFFF) == 0) {
+ ret.value = 0;
+ } else {
+ u32 mantissa = hex & 0x3FF;
+ u32 exponent = (hex >> 10) & 0x1F;
+ u32 sign = (hex >> 15) & 1;
+ ret.value = std::pow(2.0f, (float)exponent - 15.0f) * (1.0f + mantissa * std::pow(2.0f, -10.f));
+ if (sign)
+ ret.value = -ret.value;
+ }
+ return ret;
+ }
+
+ float ToFloat32() const {
+ return value;
+ }
+
+private:
+ // Stored as a regular float, merely for convenience
+ // TODO: Perform proper arithmetic on this!
+ float value;
+};
+
+struct float20 {
+ // 12 bit mantissa, 7 bit exponent, 1 bit sign
+ // TODO: No idea if this works as intended
+ static float20 FromRawFloat20(u32 hex) {
+ float20 ret;
+ if ((hex & 0xFFFFF) == 0) {
+ ret.value = 0;
+ } else {
+ u32 mantissa = hex & 0xFFF;
+ u32 exponent = (hex >> 12) & 0x7F;
+ u32 sign = (hex >> 19) & 1;
+ ret.value = std::pow(2.0f, (float)exponent - 63.0f) * (1.0f + mantissa * std::pow(2.0f, -12.f));
+ if (sign)
+ ret.value = -ret.value;
+ }
+ return ret;
+ }
+
+ float ToFloat32() const {
+ return value;
+ }
+
+private:
+ // Stored as a regular float, merely for convenience
+ // TODO: Perform proper arithmetic on this!
+ float value;
+};
+
} // namespace Pica
diff --git a/src/video_core/shader/shader.cpp b/src/video_core/shader/shader.cpp
index 59f54236b..44c234ed8 100644
--- a/src/video_core/shader/shader.cpp
+++ b/src/video_core/shader/shader.cpp
@@ -134,11 +134,13 @@ OutputVertex Run(UnitState<false>& state, const InputVertex& input, int num_attr
std::fmin(std::fabs(ret.color[i].ToFloat32()), 1.0f));
}
- LOG_TRACE(Render_Software, "Output vertex: pos (%.2f, %.2f, %.2f, %.2f), quat (%.2f, %.2f, %.2f, %.2f), col(%.2f, %.2f, %.2f, %.2f), tc0(%.2f, %.2f)",
+ LOG_TRACE(Render_Software, "Output vertex: pos(%.2f, %.2f, %.2f, %.2f), quat(%.2f, %.2f, %.2f, %.2f), "
+ "col(%.2f, %.2f, %.2f, %.2f), tc0(%.2f, %.2f), view(%.2f, %.2f, %.2f)",
ret.pos.x.ToFloat32(), ret.pos.y.ToFloat32(), ret.pos.z.ToFloat32(), ret.pos.w.ToFloat32(),
ret.quat.x.ToFloat32(), ret.quat.y.ToFloat32(), ret.quat.z.ToFloat32(), ret.quat.w.ToFloat32(),
ret.color.x.ToFloat32(), ret.color.y.ToFloat32(), ret.color.z.ToFloat32(), ret.color.w.ToFloat32(),
- ret.tc0.u().ToFloat32(), ret.tc0.v().ToFloat32());
+ ret.tc0.u().ToFloat32(), ret.tc0.v().ToFloat32(),
+ ret.view.x.ToFloat32(), ret.view.y.ToFloat32(), ret.view.z.ToFloat32());
return ret;
}
diff --git a/src/video_core/shader/shader.h b/src/video_core/shader/shader.h
index 1c6fa592c..f068cd93f 100644
--- a/src/video_core/shader/shader.h
+++ b/src/video_core/shader/shader.h
@@ -37,17 +37,19 @@ struct OutputVertex {
Math::Vec4<float24> color;
Math::Vec2<float24> tc0;
Math::Vec2<float24> tc1;
- float24 pad[6];
+ INSERT_PADDING_WORDS(2);
+ Math::Vec3<float24> view;
+ INSERT_PADDING_WORDS(1);
Math::Vec2<float24> tc2;
// Padding for optimal alignment
- float24 pad2[4];
+ INSERT_PADDING_WORDS(4);
// Attributes used to store intermediate results
// position after perspective divide
Math::Vec3<float24> screenpos;
- float24 pad3;
+ INSERT_PADDING_WORDS(1);
// Linear interpolation
// factor: 0=this, 1=vtx
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 01:30:20 +0000