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-rw-r--r--src/video_core/pica.h67
-rw-r--r--src/video_core/rasterizer.cpp49
-rw-r--r--src/video_core/vertex_shader.cpp20
3 files changed, 117 insertions, 19 deletions
diff --git a/src/video_core/pica.h b/src/video_core/pica.h
index e4a91058c..5e169ff69 100644
--- a/src/video_core/pica.h
+++ b/src/video_core/pica.h
@@ -226,7 +226,8 @@ struct Regs {
Texture1 = 0x4,
Texture2 = 0x5,
Texture3 = 0x6,
- // 0x7-0xc = primary color??
+
+ PreviousBuffer = 0xd,
Constant = 0xe,
Previous = 0xf,
};
@@ -299,7 +300,18 @@ struct Regs {
BitField<24, 8, u32> const_a;
};
- INSERT_PADDING_WORDS(0x1);
+ union {
+ BitField< 0, 2, u32> color_scale;
+ BitField<16, 2, u32> alpha_scale;
+ };
+
+ inline unsigned GetColorMultiplier() const {
+ return (color_scale < 3) ? (1 << color_scale) : 1;
+ }
+
+ inline unsigned GetAlphaMultiplier() const {
+ return (alpha_scale < 3) ? (1 << alpha_scale) : 1;
+ }
};
TevStageConfig tev_stage0;
@@ -309,11 +321,36 @@ struct Regs {
TevStageConfig tev_stage2;
INSERT_PADDING_WORDS(0x3);
TevStageConfig tev_stage3;
- INSERT_PADDING_WORDS(0x13);
+ INSERT_PADDING_WORDS(0x3);
+
+ union {
+ // Tev stages 0-3 write their output to the combiner buffer if the corresponding bit in
+ // these masks are set
+ BitField< 8, 4, u32> update_mask_rgb;
+ BitField<12, 4, u32> update_mask_a;
+
+ bool TevStageUpdatesCombinerBufferColor(unsigned stage_index) const {
+ return (stage_index < 4) && (update_mask_rgb & (1 << stage_index));
+ }
+
+ bool TevStageUpdatesCombinerBufferAlpha(unsigned stage_index) const {
+ return (stage_index < 4) && (update_mask_a & (1 << stage_index));
+ }
+ } tev_combiner_buffer_input;
+
+ INSERT_PADDING_WORDS(0xf);
TevStageConfig tev_stage4;
INSERT_PADDING_WORDS(0x3);
TevStageConfig tev_stage5;
- INSERT_PADDING_WORDS(0x3);
+
+ union {
+ BitField< 0, 8, u32> r;
+ BitField< 8, 8, u32> g;
+ BitField<16, 8, u32> b;
+ BitField<24, 8, u32> a;
+ } tev_combiner_buffer_color;
+
+ INSERT_PADDING_WORDS(0x2);
const std::array<Regs::TevStageConfig,6> GetTevStages() const {
return { tev_stage0, tev_stage1,
@@ -426,9 +463,7 @@ struct Regs {
D24S8 = 3
};
- /*
- * Returns the number of bytes in the specified depth format
- */
+ // Returns the number of bytes in the specified depth format
static u32 BytesPerDepthPixel(DepthFormat format) {
switch (format) {
case DepthFormat::D16:
@@ -443,6 +478,20 @@ struct Regs {
}
}
+ // Returns the number of bits per depth component of the specified depth format
+ static u32 DepthBitsPerPixel(DepthFormat format) {
+ switch (format) {
+ case DepthFormat::D16:
+ return 16;
+ case DepthFormat::D24:
+ case DepthFormat::D24S8:
+ return 24;
+ default:
+ LOG_CRITICAL(HW_GPU, "Unknown depth format %u", format);
+ UNIMPLEMENTED();
+ }
+ }
+
struct {
// Components are laid out in reverse byte order, most significant bits first.
enum ColorFormat : u32 {
@@ -784,8 +833,10 @@ struct Regs {
ADD_FIELD(tev_stage1);
ADD_FIELD(tev_stage2);
ADD_FIELD(tev_stage3);
+ ADD_FIELD(tev_combiner_buffer_input);
ADD_FIELD(tev_stage4);
ADD_FIELD(tev_stage5);
+ ADD_FIELD(tev_combiner_buffer_color);
ADD_FIELD(output_merger);
ADD_FIELD(framebuffer);
ADD_FIELD(vertex_attributes);
@@ -859,8 +910,10 @@ ASSERT_REG_POSITION(tev_stage0, 0xc0);
ASSERT_REG_POSITION(tev_stage1, 0xc8);
ASSERT_REG_POSITION(tev_stage2, 0xd0);
ASSERT_REG_POSITION(tev_stage3, 0xd8);
+ASSERT_REG_POSITION(tev_combiner_buffer_input, 0xe0);
ASSERT_REG_POSITION(tev_stage4, 0xf0);
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(vertex_attributes, 0x200);
diff --git a/src/video_core/rasterizer.cpp b/src/video_core/rasterizer.cpp
index 3b3fef484..46a326bb4 100644
--- a/src/video_core/rasterizer.cpp
+++ b/src/video_core/rasterizer.cpp
@@ -90,7 +90,7 @@ static const Math::Vec4<u8> GetPixel(int x, int y) {
UNIMPLEMENTED();
}
- return {};
+ return {0, 0, 0, 0};
}
static u32 GetDepth(int x, int y) {
@@ -376,7 +376,13 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0,
// with some basic arithmetic. Alpha combiners can be configured separately but work
// analogously.
Math::Vec4<u8> combiner_output;
- for (const auto& tev_stage : tev_stages) {
+ Math::Vec4<u8> combiner_buffer = {
+ registers.tev_combiner_buffer_color.r, registers.tev_combiner_buffer_color.g,
+ registers.tev_combiner_buffer_color.b, registers.tev_combiner_buffer_color.a
+ };
+
+ for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size(); ++tev_stage_index) {
+ const auto& tev_stage = tev_stages[tev_stage_index];
using Source = Regs::TevStageConfig::Source;
using ColorModifier = Regs::TevStageConfig::ColorModifier;
using AlphaModifier = Regs::TevStageConfig::AlphaModifier;
@@ -398,6 +404,9 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0,
case Source::Texture2:
return texture_color[2];
+ case Source::PreviousBuffer:
+ return combiner_buffer;
+
case Source::Constant:
return {tev_stage.const_r, tev_stage.const_g, tev_stage.const_b, tev_stage.const_a};
@@ -407,7 +416,7 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0,
default:
LOG_ERROR(HW_GPU, "Unknown color combiner source %d\n", (int)source);
UNIMPLEMENTED();
- return {};
+ return {0, 0, 0, 0};
}
};
@@ -490,6 +499,16 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0,
return result.Cast<u8>();
}
+ case Operation::AddSigned:
+ {
+ // TODO(bunnei): Verify that the color conversion from (float) 0.5f to (byte) 128 is correct
+ auto result = input[0].Cast<int>() + input[1].Cast<int>() - Math::MakeVec<int>(128, 128, 128);
+ result.r() = MathUtil::Clamp<int>(result.r(), 0, 255);
+ result.g() = MathUtil::Clamp<int>(result.g(), 0, 255);
+ result.b() = MathUtil::Clamp<int>(result.b(), 0, 255);
+ return result.Cast<u8>();
+ }
+
case Operation::Lerp:
return ((input[0] * input[2] + input[1] * (Math::MakeVec<u8>(255, 255, 255) - input[2]).Cast<u8>()) / 255).Cast<u8>();
@@ -524,7 +543,7 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0,
default:
LOG_ERROR(HW_GPU, "Unknown color combiner operation %d\n", (int)op);
UNIMPLEMENTED();
- return {};
+ return {0, 0, 0};
}
};
@@ -578,7 +597,20 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0,
};
auto alpha_output = AlphaCombine(tev_stage.alpha_op, alpha_result);
- combiner_output = Math::MakeVec(color_output, alpha_output);
+ combiner_output[0] = std::min((unsigned)255, color_output.r() * tev_stage.GetColorMultiplier());
+ combiner_output[1] = std::min((unsigned)255, color_output.g() * tev_stage.GetColorMultiplier());
+ combiner_output[2] = std::min((unsigned)255, color_output.b() * tev_stage.GetColorMultiplier());
+ combiner_output[3] = std::min((unsigned)255, alpha_output * tev_stage.GetAlphaMultiplier());
+
+ if (registers.tev_combiner_buffer_input.TevStageUpdatesCombinerBufferColor(tev_stage_index)) {
+ combiner_buffer.r() = combiner_output.r();
+ combiner_buffer.g() = combiner_output.g();
+ combiner_buffer.b() = combiner_output.b();
+ }
+
+ if (registers.tev_combiner_buffer_input.TevStageUpdatesCombinerBufferAlpha(tev_stage_index)) {
+ combiner_buffer.a() = combiner_output.a();
+ }
}
if (registers.output_merger.alpha_test.enable) {
@@ -624,9 +656,10 @@ static void ProcessTriangleInternal(const VertexShader::OutputVertex& v0,
// TODO: Does depth indeed only get written even if depth testing is enabled?
if (registers.output_merger.depth_test_enable) {
- u16 z = (u16)((v0.screenpos[2].ToFloat32() * w0 +
- v1.screenpos[2].ToFloat32() * w1 +
- v2.screenpos[2].ToFloat32() * w2) * 65535.f / wsum);
+ unsigned num_bits = Pica::Regs::DepthBitsPerPixel(registers.framebuffer.depth_format);
+ u32 z = (u32)((v0.screenpos[2].ToFloat32() * w0 +
+ v1.screenpos[2].ToFloat32() * w1 +
+ v2.screenpos[2].ToFloat32() * w2) * ((1 << num_bits) - 1) / wsum);
u32 ref_z = GetDepth(x >> 4, y >> 4);
bool pass = false;
diff --git a/src/video_core/vertex_shader.cpp b/src/video_core/vertex_shader.cpp
index 51f4e58bf..885b7de59 100644
--- a/src/video_core/vertex_shader.cpp
+++ b/src/video_core/vertex_shader.cpp
@@ -235,6 +235,15 @@ static void ProcessShaderCode(VertexShaderState& state) {
break;
}
+ case OpCode::Id::FLR:
+ for (int i = 0; i < 4; ++i) {
+ if (!swizzle.DestComponentEnabled(i))
+ continue;
+
+ dest[i] = float24::FromFloat32(std::floor(src1[i].ToFloat32()));
+ }
+ break;
+
case OpCode::Id::MAX:
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
@@ -366,12 +375,15 @@ static void ProcessShaderCode(VertexShaderState& state) {
case OpCode::Type::MultiplyAdd:
{
- if (instr.opcode.Value().EffectiveOpCode() == OpCode::Id::MAD) {
+ if ((instr.opcode.Value().EffectiveOpCode() == OpCode::Id::MAD) ||
+ (instr.opcode.Value().EffectiveOpCode() == OpCode::Id::MADI)) {
const SwizzlePattern& swizzle = *(SwizzlePattern*)&swizzle_data[instr.mad.operand_desc_id];
- const float24* src1_ = LookupSourceRegister(instr.mad.src1);
- const float24* src2_ = LookupSourceRegister(instr.mad.src2);
- const float24* src3_ = LookupSourceRegister(instr.mad.src3);
+ bool is_inverted = (instr.opcode.Value().EffectiveOpCode() == OpCode::Id::MADI);
+
+ const float24* src1_ = LookupSourceRegister(instr.mad.GetSrc1(is_inverted));
+ const float24* src2_ = LookupSourceRegister(instr.mad.GetSrc2(is_inverted));
+ const float24* src3_ = LookupSourceRegister(instr.mad.GetSrc3(is_inverted));
const bool negate_src1 = ((bool)swizzle.negate_src1 != false);
const bool negate_src2 = ((bool)swizzle.negate_src2 != false);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 06:36:10 +0100