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VideoCore: Extract swrast-specific data from OutputVertex

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This commit is contained in:
Yuri Kunde Schlesner 2016-12-18 23:43:37 -08:00
parent 8ed9f9d49f
commit dcdffabfe6
5 changed files with 64 additions and 58 deletions
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24
src/video_core/clipper.cpp
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@ -18,6 +18,8 @@
#include "video_core/rasterizer.h"
#include "video_core/shader/shader.h"
using Pica::Rasterizer::Vertex;
namespace Pica {
namespace Clipper {
@ -29,20 +31,20 @@ public:
float24::FromFloat32(0), float24::FromFloat32(0)))
: coeffs(coeffs), bias(bias) {}
bool IsInside(const OutputVertex& vertex) const {
bool IsInside(const Vertex& vertex) const {
return Math::Dot(vertex.pos + bias, coeffs) <= float24::FromFloat32(0);
}
bool IsOutSide(const OutputVertex& vertex) const {
bool IsOutSide(const Vertex& vertex) const {
return !IsInside(vertex);
}
OutputVertex GetIntersection(const OutputVertex& v0, const OutputVertex& v1) const {
Vertex GetIntersection(const Vertex& v0, const Vertex& v1) const {
float24 dp = Math::Dot(v0.pos + bias, coeffs);
float24 dp_prev = Math::Dot(v1.pos + bias, coeffs);
float24 factor = dp_prev / (dp_prev - dp);
return OutputVertex::Lerp(factor, v0, v1);
return Vertex::Lerp(factor, v0, v1);
}
private:
@ -51,7 +53,7 @@ private:
Math::Vec4<float24> bias;
};
static void InitScreenCoordinates(OutputVertex& vtx) {
static void InitScreenCoordinates(Vertex& vtx) {
struct {
float24 halfsize_x;
float24 offset_x;
@ -91,8 +93,8 @@ void ProcessTriangle(const OutputVertex& v0, const OutputVertex& v1, const Outpu
// introduces at most 1 new vertex to the polygon. Since we start with a triangle and have a
// fixed 6 clipping planes, the maximum number of vertices of the clipped polygon is 3 + 6 = 9.
static const size_t MAX_VERTICES = 9;
static_vector<OutputVertex, MAX_VERTICES> buffer_a = {v0, v1, v2};
static_vector<OutputVertex, MAX_VERTICES> buffer_b;
static_vector<Vertex, MAX_VERTICES> buffer_a = {v0, v1, v2};
static_vector<Vertex, MAX_VERTICES> buffer_b;
auto* output_list = &buffer_a;
auto* input_list = &buffer_b;
@ -123,7 +125,7 @@ void ProcessTriangle(const OutputVertex& v0, const OutputVertex& v1, const Outpu
std::swap(input_list, output_list);
output_list->clear();
const OutputVertex* reference_vertex = &input_list->back();
const Vertex* reference_vertex = &input_list->back();
for (const auto& vertex : *input_list) {
// NOTE: This algorithm changes vertex order in some cases!
@ -148,9 +150,9 @@ void ProcessTriangle(const OutputVertex& v0, const OutputVertex& v1, const Outpu
InitScreenCoordinates((*output_list)[1]);
for (size_t i = 0; i < output_list->size() - 2; i++) {
OutputVertex& vtx0 = (*output_list)[0];
OutputVertex& vtx1 = (*output_list)[i + 1];
OutputVertex& vtx2 = (*output_list)[i + 2];
Vertex& vtx0 = (*output_list)[0];
Vertex& vtx1 = (*output_list)[i + 1];
Vertex& vtx2 = (*output_list)[i + 2];
InitScreenCoordinates(vtx2);