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pica/rasterizer: implement/stub texture wrap mode 4-7

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This commit is contained in:
wwylele 2017-06-01 16:56:46 +03:00
parent a4f88c7d7c
commit 28d1e73d2f
4 changed files with 48 additions and 12 deletions
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19
src/video_core/swrasterizer/texturing.cpp
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@ -18,22 +18,33 @@ using TevStageConfig = TexturingRegs::TevStageConfig;
int GetWrappedTexCoord(TexturingRegs::TextureConfig::WrapMode mode, int val, unsigned size) {
switch (mode) {
case TexturingRegs::TextureConfig::ClampToEdge2:
// For negative coordinate, ClampToEdge2 behaves the same as Repeat
if (val < 0) {
return static_cast<int>(static_cast<unsigned>(val) % size);
}
// [[fallthrough]]
case TexturingRegs::TextureConfig::ClampToEdge:
val = std::max(val, 0);
val = std::min(val, (int)size - 1);
val = std::min(val, static_cast<int>(size) - 1);
return val;
case TexturingRegs::TextureConfig::ClampToBorder:
return val;
case TexturingRegs::TextureConfig::ClampToBorder2:
// For ClampToBorder2, the case of positive coordinate beyond the texture size is already
// handled outside. Here we only handle the negative coordinate in the same way as Repeat.
case TexturingRegs::TextureConfig::Repeat2:
case TexturingRegs::TextureConfig::Repeat3:
case TexturingRegs::TextureConfig::Repeat:
return (int)((unsigned)val % size);
return static_cast<int>(static_cast<unsigned>(val) % size);
case TexturingRegs::TextureConfig::MirroredRepeat: {
unsigned int coord = ((unsigned)val % (2 * size));
unsigned int coord = (static_cast<unsigned>(val) % (2 * size));
if (coord >= size)
coord = 2 * size - 1 - coord;
return (int)coord;
return static_cast<int>(coord);
}
default: