LXR qemu/include/ui/qemu-pixman.h

   1/*
   2 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   3 * See the COPYING file in the top-level directory.
   4 */
   5
   6#ifndef QEMU_PIXMAN_H
   7#define QEMU_PIXMAN_H
   8
   9/* pixman-0.16.0 headers have a redundant declaration */
  10#ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
  11#pragma GCC diagnostic push
  12#pragma GCC diagnostic ignored "-Wredundant-decls"
  13#endif
  14#include <pixman.h>
  15#ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
  16#pragma GCC diagnostic pop
  17#endif
  18
  19/*
  20 * pixman image formats are defined to be native endian,
  21 * that means host byte order on qemu.  So we go define
  22 * fixed formats here for cases where it is needed, like
  23 * feeding libjpeg / libpng and writing screenshots.
  24 */
  25
  26#ifdef HOST_WORDS_BIGENDIAN
  27# define PIXMAN_BE_r8g8b8     PIXMAN_r8g8b8
  28# define PIXMAN_BE_x8r8g8b8   PIXMAN_x8r8g8b8
  29# define PIXMAN_BE_a8r8g8b8   PIXMAN_a8r8g8b8
  30# define PIXMAN_BE_b8g8r8x8   PIXMAN_b8g8r8x8
  31# define PIXMAN_BE_b8g8r8a8   PIXMAN_b8g8r8a8
  32# define PIXMAN_BE_r8g8b8x8   PIXMAN_r8g8b8x8
  33# define PIXMAN_BE_r8g8b8a8   PIXMAN_r8g8b8a8
  34# define PIXMAN_BE_x8b8g8r8   PIXMAN_x8b8g8r8
  35# define PIXMAN_BE_a8b8g8r8   PIXMAN_a8b8g8r8
  36# define PIXMAN_LE_r8g8b8     PIXMAN_b8g8r8
  37# define PIXMAN_LE_a8r8g8b8   PIXMAN_b8g8r8a8
  38# define PIXMAN_LE_x8r8g8b8   PIXMAN_b8g8r8x8
  39#else
  40# define PIXMAN_BE_r8g8b8     PIXMAN_b8g8r8
  41# define PIXMAN_BE_x8r8g8b8   PIXMAN_b8g8r8x8
  42# define PIXMAN_BE_a8r8g8b8   PIXMAN_b8g8r8a8
  43# define PIXMAN_BE_b8g8r8x8   PIXMAN_x8r8g8b8
  44# define PIXMAN_BE_b8g8r8a8   PIXMAN_a8r8g8b8
  45# define PIXMAN_BE_r8g8b8x8   PIXMAN_x8b8g8r8
  46# define PIXMAN_BE_r8g8b8a8   PIXMAN_a8b8g8r8
  47# define PIXMAN_BE_x8b8g8r8   PIXMAN_r8g8b8x8
  48# define PIXMAN_BE_a8b8g8r8   PIXMAN_r8g8b8a8
  49# define PIXMAN_LE_r8g8b8     PIXMAN_r8g8b8
  50# define PIXMAN_LE_a8r8g8b8   PIXMAN_a8r8g8b8
  51# define PIXMAN_LE_x8r8g8b8   PIXMAN_x8r8g8b8
  52#endif
  53
  54/* -------------------------------------------------------------------- */
  55
  56typedef struct PixelFormat {
  57    uint8_t bits_per_pixel;
  58    uint8_t bytes_per_pixel;
  59    uint8_t depth; /* color depth in bits */
  60    uint32_t rmask, gmask, bmask, amask;
  61    uint8_t rshift, gshift, bshift, ashift;
  62    uint8_t rmax, gmax, bmax, amax;
  63    uint8_t rbits, gbits, bbits, abits;
  64} PixelFormat;
  65
  66PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format);
  67pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian);
  68pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format);
  69int qemu_pixman_get_type(int rshift, int gshift, int bshift);
  70pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf);
  71bool qemu_pixman_check_format(DisplayChangeListener *dcl,
  72                              pixman_format_code_t format);
  73
  74pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format,
  75                                           int width);
  76void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
  77                              int width, int x, int y);
  78void qemu_pixman_linebuf_copy(pixman_image_t *fb, int width, int x, int y,
  79                              pixman_image_t *linebuf);
  80pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
  81                                          pixman_image_t *image);
  82void qemu_pixman_image_unref(pixman_image_t *image);
  83
  84pixman_color_t qemu_pixman_color(PixelFormat *pf, uint32_t color);
  85pixman_image_t *qemu_pixman_glyph_from_vgafont(int height, const uint8_t *font,
  86                                               unsigned int ch);
  87void qemu_pixman_glyph_render(pixman_image_t *glyph,
  88                              pixman_image_t *surface,
  89                              pixman_color_t *fgcol,
  90                              pixman_color_t *bgcol,
  91                              int x, int y, int cw, int ch);
  92
  93G_DEFINE_AUTOPTR_CLEANUP_FUNC(pixman_image_t, qemu_pixman_image_unref)
  94
  95#endif /* QEMU_PIXMAN_H */
  96