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
  56 typedef 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
  66 PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format);
  67 pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian);
  68 pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format);
  69 int qemu_pixman_get_type(int rshift, int gshift, int bshift);
  70 pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf);
  71 bool qemu_pixman_check_format(DisplayChangeListener *dcl,
  72                               pixman_format_code_t format);
  73
  74 pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format,
  75                                            int width);
  76 void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
  77                               int width, int x, int y);
  78 void qemu_pixman_linebuf_copy(pixman_image_t *fb, int width, int x, int y,
  79                               pixman_image_t *linebuf);
  80 pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
  81                                           pixman_image_t *image);
  82 void qemu_pixman_image_unref(pixman_image_t *image);
  83
  84 pixman_color_t qemu_pixman_color(PixelFormat *pf, uint32_t color);
  85 pixman_image_t *qemu_pixman_glyph_from_vgafont(int height, const uint8_t *font,
  86                                                unsigned int ch);
  87 void 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
  93 G_DEFINE_AUTOPTR_CLEANUP_FUNC(pixman_image_t, qemu_pixman_image_unref)
  94
  95 #endif /* QEMU_PIXMAN_H */