From 5e79706db23a956ea0d6f3e5cc5a57b3a5d86b5e Mon Sep 17 00:00:00 2001 From: Tony Wasserka Date: Thu, 21 May 2015 16:51:31 +0200 Subject: Pica: Implement stencil testing. --- src/common/color.h | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) (limited to 'src/common') diff --git a/src/common/color.h b/src/common/color.h index 422fdc8a..9dafdca0 100644 --- a/src/common/color.h +++ b/src/common/color.h @@ -208,7 +208,32 @@ inline void EncodeD24(u32 value, u8* bytes) { * @param bytes Pointer where to store the encoded value */ inline void EncodeD24S8(u32 depth, u8 stencil, u8* bytes) { - *reinterpret_cast(bytes) = (stencil << 24) | depth; + bytes[0] = depth & 0xFF; + bytes[1] = (depth >> 8) & 0xFF; + bytes[2] = (depth >> 16) & 0xFF; + bytes[3] = stencil; +} + +/** + * Encode a 24 bit depth value as D24X8 format (32 bits per pixel with 8 bits unused) + * @param depth 24 bit source depth value to encode + * @param bytes Pointer where to store the encoded value + * @note unused bits will not be modified + */ +inline void EncodeD24X8(u32 depth, u8* bytes) { + bytes[0] = depth & 0xFF; + bytes[1] = (depth >> 8) & 0xFF; + bytes[2] = (depth >> 16) & 0xFF; +} + +/** + * Encode an 8 bit stencil value as X24S8 format (32 bits per pixel with 24 bits unused) + * @param stencil 8 bit source stencil value to encode + * @param bytes Pointer where to store the encoded value + * @note unused bits will not be modified + */ +inline void EncodeX24S8(u8 stencil, u8* bytes) { + bytes[3] = stencil; } } // namespace -- cgit v1.2.3