diff options
| -rw-r--r-- | src/video_core/regs_rasterizer.h | 14 | ||||
| -rw-r--r-- | src/video_core/swrasterizer/clipper.cpp | 15 |
2 files changed, 25 insertions, 4 deletions
diff --git a/src/video_core/regs_rasterizer.h b/src/video_core/regs_rasterizer.h index 2874fd127..4fef00d76 100644 --- a/src/video_core/regs_rasterizer.h +++ b/src/video_core/regs_rasterizer.h @@ -5,10 +5,10 @@ #pragma once #include <array> - #include "common/bit_field.h" #include "common/common_funcs.h" #include "common/common_types.h" +#include "video_core/pica_types.h" namespace Pica { @@ -31,7 +31,17 @@ struct RasterizerRegs { BitField<0, 24, u32> viewport_size_y; - INSERT_PADDING_WORDS(0x9); + INSERT_PADDING_WORDS(0x3); + + BitField<0, 1, u32> clip_enable; + BitField<0, 24, u32> clip_coef[4]; // float24 + + Math::Vec4<float24> GetClipCoef() const { + return {float24::FromRaw(clip_coef[0]), float24::FromRaw(clip_coef[1]), + float24::FromRaw(clip_coef[2]), float24::FromRaw(clip_coef[3])}; + } + + INSERT_PADDING_WORDS(0x1); BitField<0, 24, u32> viewport_depth_range; // float24 BitField<0, 24, u32> viewport_depth_near_plane; // float24 diff --git a/src/video_core/swrasterizer/clipper.cpp b/src/video_core/swrasterizer/clipper.cpp index cdbc71502..cc76ba555 100644 --- a/src/video_core/swrasterizer/clipper.cpp +++ b/src/video_core/swrasterizer/clipper.cpp @@ -127,8 +127,7 @@ void ProcessTriangle(const OutputVertex& v0, const OutputVertex& v1, const Outpu // Simple implementation of the Sutherland-Hodgman clipping algorithm. // TODO: Make this less inefficient (currently lots of useless buffering overhead happens here) - for (auto edge : clipping_edges) { - + auto Clip = [&](const ClippingEdge& edge) { std::swap(input_list, output_list); output_list->clear(); @@ -147,12 +146,24 @@ void ProcessTriangle(const OutputVertex& v0, const OutputVertex& v1, const Outpu } reference_vertex = &vertex; } + }; + + for (auto edge : clipping_edges) { + Clip(edge); // Need to have at least a full triangle to continue... if (output_list->size() < 3) return; } + if (g_state.regs.rasterizer.clip_enable) { + ClippingEdge custom_edge{-g_state.regs.rasterizer.GetClipCoef()}; + Clip(custom_edge); + + if (output_list->size() < 3) + return; + } + InitScreenCoordinates((*output_list)[0]); InitScreenCoordinates((*output_list)[1]); |