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