1 /* 2 * Copyright 2005, Stephan Aßmus <superstippi@gmx.de>. 3 * Copyright 2008, Andrej Spielmann <andrej.spielmann@seh.ox.ac.uk>. 4 * All rights reserved. Distributed under the terms of the MIT License. 5 * 6 * DrawingMode implementing B_OP_OVER on B_RGBA32. 7 * 8 */ 9 10 #ifndef DRAWING_MODE_OVER_SUBPIX_H 11 #define DRAWING_MODE_OVER_SUBPIX_H 12 13 #include "DrawingMode.h" 14 #include "GlobalSubpixelSettings.h" 15 16 // BLEND_OVER_SUBPIX 17 #define BLEND_OVER_SUBPIX(d, r, g, b, a1, a2, a3) \ 18 { \ 19 BLEND_SUBPIX(d, r, g, b, a1, a2, a3) \ 20 } 21 22 23 // blend_solid_hspan_over_subpix 24 void 25 blend_solid_hspan_over_subpix(int x, int y, unsigned len, const color_type& c, 26 const uint8* covers, agg_buffer* buffer, const PatternHandler* pattern) 27 { 28 uint8* p = buffer->row_ptr(y) + (x << 2); 29 rgb_color color = pattern->HighColor(); 30 const int subpixelL = gSubpixelOrderingRGB ? 2 : 0; 31 const int subpixelM = 1; 32 const int subpixelR = gSubpixelOrderingRGB ? 0 : 2; 33 do { 34 if (pattern->IsHighColor(x, y)) { 35 BLEND_OVER_SUBPIX(p, color.red, color.green, color.blue, 36 covers[subpixelL], covers[subpixelM], covers[subpixelR]); 37 } 38 covers += 3; 39 p += 4; 40 x++; 41 len -= 3; 42 } while (len); 43 } 44 45 #endif // DRAWING_MODE_OVER_SUBPIX_H 46 47