mirror of
https://github.com/citra-emu/citra.git
synced 2024-12-19 07:11:06 +00:00
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include "video_core/shader/shader.h"
|
|
|
|
namespace Pica {
|
|
|
|
namespace Rasterizer {
|
|
|
|
struct Vertex : Shader::OutputVertex {
|
|
Vertex(const OutputVertex& v) : OutputVertex(v) {}
|
|
|
|
// Attributes used to store intermediate results
|
|
// position after perspective divide
|
|
Math::Vec3<float24> screenpos;
|
|
|
|
// Linear interpolation
|
|
// factor: 0=this, 1=vtx
|
|
void Lerp(float24 factor, const Vertex& vtx) {
|
|
pos = pos * factor + vtx.pos * (float24::FromFloat32(1) - factor);
|
|
|
|
// TODO: Should perform perspective correct interpolation here...
|
|
tc0 = tc0 * factor + vtx.tc0 * (float24::FromFloat32(1) - factor);
|
|
tc1 = tc1 * factor + vtx.tc1 * (float24::FromFloat32(1) - factor);
|
|
tc2 = tc2 * factor + vtx.tc2 * (float24::FromFloat32(1) - factor);
|
|
|
|
screenpos = screenpos * factor + vtx.screenpos * (float24::FromFloat32(1) - factor);
|
|
|
|
color = color * factor + vtx.color * (float24::FromFloat32(1) - factor);
|
|
}
|
|
|
|
// Linear interpolation
|
|
// factor: 0=v0, 1=v1
|
|
static Vertex Lerp(float24 factor, const Vertex& v0, const Vertex& v1) {
|
|
Vertex ret = v0;
|
|
ret.Lerp(factor, v1);
|
|
return ret;
|
|
}
|
|
};
|
|
|
|
void ProcessTriangle(const Vertex& v0, const Vertex& v1, const Vertex& v2);
|
|
|
|
} // namespace Rasterizer
|
|
|
|
} // namespace Pica
|