Emulation/ppsspp
1
0
Fork 0
mirror of https://github.com/hrydgard/ppsspp.git synced 2025-04-02 11:01:50 -04:00
Code Issues Projects Releases Packages Wiki Activity

softgpu: Save last tc/normal in vertex reading.

Browse source 
Matches PSP behavior, reusing last set values.
This commit is contained in:
Unknown W. Brackets 2022-09-25 23:04:00 -07:00
parent 59f11df98b
commit b3c0f177e2
2 changed files with 9 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
GPU/Software/Rasterizer.cpp
View file

@ -226,7 +226,6 @@ static inline u8 ClampFogDepth(float fogdepth) {
static inline void GetTextureCoordinates(const VertexData& v0, const VertexData& v1, const float p, float &s, float &t) {
// All UV gen modes, by the time they get here, behave the same.
// TODO: What happens if vertex has no texture coordinates?
// Note that for environment mapping, texture coordinates have been calculated during lighting
float q0 = 1.f / v0.clippos.w;
float q1 = 1.f / v1.clippos.w;
@ -241,7 +240,6 @@ static inline void GetTextureCoordinates(const VertexData& v0, const VertexData&
static inline void GetTextureCoordinates(const VertexData &v0, const VertexData &v1, const VertexData &v2, const Vec4<int> &w0, const Vec4<int> &w1, const Vec4<int> &w2, const Vec4<float> &wsum_recip, Vec4<float> &s, Vec4<float> &t) {
// All UV gen modes, by the time they get here, behave the same.
// TODO: What happens if vertex has no texture coordinates?
// Note that for environment mapping, texture coordinates have been calculated during lighting.
float q0 = 1.f / v0.clippos.w;
float q1 = 1.f / v1.clippos.w;

11
GPU/Software/TransformUnit.cpp
View file

@ -317,24 +317,31 @@ void ComputeTransformState(TransformState *state, const VertexReader &vreader) {
VertexData TransformUnit::ReadVertex(VertexReader &vreader, const TransformState &state) {
PROFILE_THIS_SCOPE("read_vert");
// If we ever thread this, we'll have to change this.
VertexData vertex;
ModelCoords pos;
// VertexDecoder normally scales z, but we want it unscaled.
vreader.ReadPosThroughZ16(pos.AsArray());
static Vec2f lastTC;
if (state.readUV) {
vreader.ReadUV(vertex.texturecoords.AsArray());
lastTC = vertex.texturecoords;
} else {
vertex.texturecoords.SetZero();
vertex.texturecoords = lastTC;
}
Vec3<float> normal;
Vec3f normal;
static Vec3f lastnormal;
if (vreader.hasNormal()) {
vreader.ReadNrm(normal.AsArray());
lastnormal = normal;
if (state.negateNormals)
normal = -normal;
} else {
normal = lastnormal;
}
if (state.readWeights) {