drivers/gpu/drm/drm_draw_internal.h

   1 /* SPDX-License-Identifier: GPL-2.0 or MIT */
   2 /*
   3  * Copyright (c) 2023 Red Hat.
   4  * Author: Jocelyn Falempe <[email protected]>
   5  */
   6
   7 #ifndef __DRM_DRAW_INTERNAL_H__
   8 #define __DRM_DRAW_INTERNAL_H__
   9
  10 #include <linux/font.h>
  11 #include <linux/types.h>
  12
  13 struct iosys_map;
  14
  15 /* check if the pixel at coord x,y is 1 (foreground) or 0 (background) */
  16 static inline bool drm_draw_is_pixel_fg(const u8 *sbuf8, unsigned int spitch, int x, int y)
  17 {
  18         return (sbuf8[(y * spitch) + x / 8] & (0x80 >> (x % 8))) != 0;
  19 }
  20
  21 static inline const u8 *drm_draw_get_char_bitmap(const struct font_desc *font,
  22                                                  char c, size_t font_pitch)
  23 {
  24         return font->data + (c * font->height) * font_pitch;
  25 }
  26
  27 u32 drm_draw_color_from_xrgb8888(u32 color, u32 format);
  28
  29 void drm_draw_blit16(struct iosys_map *dmap, unsigned int dpitch,
  30                      const u8 *sbuf8, unsigned int spitch,
  31                      unsigned int height, unsigned int width,
  32                      unsigned int scale, u16 fg16);
  33
  34 void drm_draw_blit24(struct iosys_map *dmap, unsigned int dpitch,
  35                      const u8 *sbuf8, unsigned int spitch,
  36                      unsigned int height, unsigned int width,
  37                      unsigned int scale, u32 fg32);
  38
  39 void drm_draw_blit32(struct iosys_map *dmap, unsigned int dpitch,
  40                      const u8 *sbuf8, unsigned int spitch,
  41                      unsigned int height, unsigned int width,
  42                      unsigned int scale, u32 fg32);
  43
  44 void drm_draw_fill16(struct iosys_map *dmap, unsigned int dpitch,
  45                      unsigned int height, unsigned int width,
  46                      u16 color);
  47
  48 void drm_draw_fill24(struct iosys_map *dmap, unsigned int dpitch,
  49                      unsigned int height, unsigned int width,
  50                      u16 color);
  51
  52 void drm_draw_fill32(struct iosys_map *dmap, unsigned int dpitch,
  53                      unsigned int height, unsigned int width,
  54                      u32 color);
  55
  56 #endif /* __DRM_DRAW_INTERNAL_H__ */