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swrasterizer: remove invalid TODO

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This function is called in clipping, before the pespective divide, and is not used in later rasterization. Thus it doesn't need perspective correction.
This commit is contained in:
wwylele 2017-08-17 11:02:19 +03:00
parent 72b26ac32f
commit 63b6e802cd
1 changed files with 2 additions and 4 deletions
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6
src/video_core/swrasterizer/rasterizer.h
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@ -19,10 +19,9 @@ struct Vertex : Shader::OutputVertex {
// Linear interpolation // Linear interpolation
// factor: 0=this, 1=vtx // factor: 0=this, 1=vtx
// Note: This function cannot be called after perspective divide
void Lerp(float24 factor, const Vertex& vtx) { void Lerp(float24 factor, const Vertex& vtx) {
pos = pos * factor + vtx.pos * (float24::FromFloat32(1) - factor); pos = pos * factor + vtx.pos * (float24::FromFloat32(1) - factor);
// TODO: Should perform perspective correct interpolation here...
quat = quat * factor + vtx.quat * (float24::FromFloat32(1) - factor); quat = quat * factor + vtx.quat * (float24::FromFloat32(1) - factor);
color = color * factor + vtx.color * (float24::FromFloat32(1) - factor); color = color * factor + vtx.color * (float24::FromFloat32(1) - factor);
tc0 = tc0 * factor + vtx.tc0 * (float24::FromFloat32(1) - factor); tc0 = tc0 * factor + vtx.tc0 * (float24::FromFloat32(1) - factor);
@ -30,12 +29,11 @@ struct Vertex : Shader::OutputVertex {
tc0_w = tc0_w * factor + vtx.tc0_w * (float24::FromFloat32(1) - factor); tc0_w = tc0_w * factor + vtx.tc0_w * (float24::FromFloat32(1) - factor);
view = view * factor + vtx.view * (float24::FromFloat32(1) - factor); view = view * factor + vtx.view * (float24::FromFloat32(1) - factor);
tc2 = tc2 * factor + vtx.tc2 * (float24::FromFloat32(1) - factor); tc2 = tc2 * factor + vtx.tc2 * (float24::FromFloat32(1) - factor);
screenpos = screenpos * factor + vtx.screenpos * (float24::FromFloat32(1) - factor);
} }
// Linear interpolation // Linear interpolation
// factor: 0=v0, 1=v1 // factor: 0=v0, 1=v1
// Note: This function cannot be called after perspective divide
static Vertex Lerp(float24 factor, const Vertex& v0, const Vertex& v1) { static Vertex Lerp(float24 factor, const Vertex& v0, const Vertex& v1) {
Vertex ret = v0; Vertex ret = v0;
ret.Lerp(factor, v1); ret.Lerp(factor, v1);