Cyd
2b8ca921cb
Complete disaster-recovery snapshot: engine/game source, game data assets, VC6 toolchain + DX SDKs, build outputs, deployed game, and _UNUSED archive. Large binaries in Git LFS; text preserved byte-for-byte (core.autocrlf=false, no eol attributes). See RECOVERY.md for the one-clone rebuild procedure.
92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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void
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FeatureGrid::BLENDFUNCTION (
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FeatureInstance *featureInstance,
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unsigned char *pix_buf,
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int start_span,
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int end_span,
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int downScale
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)
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{
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unsigned char *data_ptr = featureInstance->currentTexturePtr;
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int texture_width = (featureInstance->feature->featureTexture->width) >> downScale;
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int count_down = featureInstance->countDownToBorder;
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#ifdef SHOW_MATERIAL
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DWORD mat_color = downScale & 0xffffff;
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downScale >>= 24;
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#endif
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#ifdef TEXTURE_HORIZONTAL_FLIP
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#else
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#endif
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WORD *data_ptr_word = (WORD *)data_ptr;
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#ifdef TEXTURE_HORIZONTAL_FLIP
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int i, j;
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for(i=0,j=0;i<end_span-start_span;i++,j--)
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#else
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for(int i=0;i<end_span-start_span;i++)
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#endif
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{
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#ifdef TEXTURE_HORIZONTAL_FLIP
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int alpha = (data_ptr_word[j] & 0xf) << 4;
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#ifdef SHOW_MATERIAL
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if(alpha>0x80)
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{
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*(DWORD *)pix_buf = mat_color;
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}
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#else // SHOW_MATERIAL
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if(alpha>0)
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{
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int col = *pix_buf*(0xf0-alpha) + (data_ptr_word[j] & 0xf0)*alpha;
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*pix_buf = static_cast<unsigned char>(col>>8);
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col = *(pix_buf+1)*(0xf0-alpha) + ((data_ptr_word[j] & 0xf00)>>4)*alpha;
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*(pix_buf+1) = static_cast<unsigned char>(col>>8);
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col = *(pix_buf+2)*(0xf0-alpha) + ((data_ptr_word[j] & 0xf000)>>8)*alpha;
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*(pix_buf+2) = static_cast<unsigned char>(col>>8);
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}
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#endif // SHOW_MATERIAL
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if(--count_down <= 0)
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{
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data_ptr_word += texture_width;
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count_down = texture_width;
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}
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#else
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int alpha = (data_ptr_word[i] & 0xf) << 4;
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#ifdef SHOW_MATERIAL
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if(alpha>0x80)
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{
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*(DWORD *)pix_buf = mat_color;
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}
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#else // SHOW_MATERIAL
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if(alpha>0)
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{
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int col = *pix_buf*(0xf0-alpha) + (data_ptr_word[i] & 0xf0)*alpha;
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*pix_buf = static_cast<unsigned char>(col>>8);
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col = *(pix_buf+1)*(0xf0-alpha) + ((data_ptr_word[i] & 0xf00)>>4)*alpha;
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*(pix_buf+1) = static_cast<unsigned char>(col>>8);
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col = *(pix_buf+2)*(0xf0-alpha) + ((data_ptr_word[i] & 0xf000)>>8)*alpha;
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*(pix_buf+2) = static_cast<unsigned char>(col>>8);
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}
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#endif // SHOW_MATERIAL
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if(--count_down <= 0)
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{
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data_ptr_word -= texture_width;
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count_down = texture_width;
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}
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#endif
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pix_buf += colorDepth;
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}
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} |