Pica: Implement stencil testing.
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3 changed files with 199 additions and 13 deletions
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@ -208,7 +208,32 @@ inline void EncodeD24(u32 value, u8* bytes) {
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* @param bytes Pointer where to store the encoded value
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*/
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inline void EncodeD24S8(u32 depth, u8 stencil, u8* bytes) {
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*reinterpret_cast<u32_le*>(bytes) = (stencil << 24) | depth;
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bytes[0] = depth & 0xFF;
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bytes[1] = (depth >> 8) & 0xFF;
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bytes[2] = (depth >> 16) & 0xFF;
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bytes[3] = stencil;
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}
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/**
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* Encode a 24 bit depth value as D24X8 format (32 bits per pixel with 8 bits unused)
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* @param depth 24 bit source depth value to encode
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* @param bytes Pointer where to store the encoded value
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* @note unused bits will not be modified
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*/
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inline void EncodeD24X8(u32 depth, u8* bytes) {
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bytes[0] = depth & 0xFF;
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bytes[1] = (depth >> 8) & 0xFF;
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bytes[2] = (depth >> 16) & 0xFF;
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}
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/**
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* Encode an 8 bit stencil value as X24S8 format (32 bits per pixel with 24 bits unused)
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* @param stencil 8 bit source stencil value to encode
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* @param bytes Pointer where to store the encoded value
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* @note unused bits will not be modified
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*/
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inline void EncodeX24S8(u8 stencil, u8* bytes) {
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bytes[3] = stencil;
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}
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} // namespace
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