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75 lines
1.7 KiB
75 lines
1.7 KiB
GBLENDER_CHANNEL_VARS(blender,r,g,b);
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int h = blit->height;
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const unsigned char* src_line = blit->src_line;
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unsigned char* dst_line = blit->dst_line;
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do
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{
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const unsigned char* src = src_line + blit->src_x*3;
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unsigned char* dst = dst_line + blit->dst_x*GDST_INCR;
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int w = blit->width;
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do
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{
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int ab = GBLENDER_SHADE_INDEX(src[0]);
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int ag = GBLENDER_SHADE_INDEX(src[1]);
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int ar = GBLENDER_SHADE_INDEX(src[2]);
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int aa = (ar << 16) | (ag << 8) | ab;
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if ( aa == 0 )
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{
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/* nothing */
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}
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else if ( aa == ((GBLENDER_SHADE_COUNT << 16) |
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(GBLENDER_SHADE_COUNT << 8) |
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(GBLENDER_SHADE_COUNT) ) )
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{
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GDST_COPY(dst);
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}
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else
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{
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GBlenderPixel back;
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int pix_r, pix_g, pix_b;
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GDST_READ(dst,back);
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{
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int back_r = (back >> 16) & 255;
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GBLENDER_LOOKUP_R( blender, back_r );
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pix_r = _grcells[ar];
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}
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{
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int back_g = (back >> 8) & 255;
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GBLENDER_LOOKUP_G( blender, back_g );
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pix_g = _ggcells[ag];
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}
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{
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int back_b = (back) & 255;
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GBLENDER_LOOKUP_B( blender, back_b );
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pix_b = _gbcells[ab];
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}
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GDST_STOREC(dst,pix_r,pix_g,pix_b);
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}
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src += 3;
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dst += GDST_INCR;
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}
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while (--w > 0);
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src_line += blit->src_pitch;
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dst_line += blit->dst_pitch;
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}
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while (--h > 0);
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GBLENDER_CHANNEL_CLOSE(blender);
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