rop2.h

Go to the documentation of this file.

/*
 * SPDX-FileCopyrightText: 2025, Roy Ratcliffe, Northumberland, United Kingdom
 * SPDX-License-Identifier: MIT
 */
#ifndef __BLIT_ROP2_H__
#define __BLIT_ROP2_H__
 
#include <blit/rgn1.h>
#include <blit/scan.h>
 
enum blit_rop2 {
  blit_rop2_0,
  blit_rop2_DSon,
  blit_rop2_DSna,
  blit_rop2_Sn,
  blit_rop2_SDna,
  blit_rop2_Dn,
  blit_rop2_DSx,
  blit_rop2_DSan,
  blit_rop2_DSa,
  blit_rop2_DSxn,
  blit_rop2_D,
  blit_rop2_DSno,
  blit_rop2_S,
  blit_rop2_SDno,
  blit_rop2_DSo,
  blit_rop2_1,
  /*
   * Common raster operation synonyms.
   */
  blit_rop2_not_erase = blit_rop2_DSon,
  blit_rop2_not_copy = blit_rop2_Sn,
  blit_rop2_erase = blit_rop2_SDna,
  blit_rop2_xor = blit_rop2_DSx,
  blit_rop2_and = blit_rop2_DSa,
  blit_rop2_merge_paint = blit_rop2_DSno,
  blit_rop2_copy = blit_rop2_S,
  blit_rop2_paint = blit_rop2_DSo,
  /*
   * Unary raster operations defined in terms of binary operations.
   */
  blit_rop2_blackness = blit_rop2_0,
  blit_rop2_invert = blit_rop2_Sn,
  blit_rop2_whiteness = blit_rop2_1,
};
 
bool blit_rgn1_rop2(struct blit_scan *result, struct blit_rgn1 *x,
                    struct blit_rgn1 *y, const struct blit_scan *source,
                    enum blit_rop2 rop2);
 
bool blit_rop2(struct blit_scan *result, const int x, const int y,
               const int x_extent, const int y_extent,
               const struct blit_scan *source, const int x_source,
               const int y_source, enum blit_rop2 rop2);
 
#endif /* __BLIT_ROP2_H__ */