xref: /openbmc/qemu/include/ui/qemu-pixman.h (revision a9ded601)
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_x8r8g8b8   PIXMAN_b8g8r8x8
37 #else
38 # define PIXMAN_BE_r8g8b8     PIXMAN_b8g8r8
39 # define PIXMAN_BE_x8r8g8b8   PIXMAN_b8g8r8x8
40 # define PIXMAN_BE_a8r8g8b8   PIXMAN_b8g8r8a8
41 # define PIXMAN_BE_b8g8r8x8   PIXMAN_x8r8g8b8
42 # define PIXMAN_BE_b8g8r8a8   PIXMAN_a8r8g8b8
43 # define PIXMAN_BE_r8g8b8x8   PIXMAN_x8b8g8r8
44 # define PIXMAN_BE_r8g8b8a8   PIXMAN_a8b8g8r8
45 # define PIXMAN_BE_x8b8g8r8   PIXMAN_r8g8b8x8
46 # define PIXMAN_BE_a8b8g8r8   PIXMAN_r8g8b8a8
47 # define PIXMAN_LE_x8r8g8b8   PIXMAN_x8r8g8b8
48 #endif
49 
50 /* -------------------------------------------------------------------- */
51 
52 PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format);
53 pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian);
54 int qemu_pixman_get_type(int rshift, int gshift, int bshift);
55 pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf);
56 bool qemu_pixman_check_format(DisplayChangeListener *dcl,
57                               pixman_format_code_t format);
58 
59 pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format,
60                                            int width);
61 void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
62                               int width, int x, int y);
63 void qemu_pixman_linebuf_copy(pixman_image_t *fb, int width, int x, int y,
64                               pixman_image_t *linebuf);
65 pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
66                                           pixman_image_t *image);
67 void qemu_pixman_image_unref(pixman_image_t *image);
68 
69 pixman_color_t qemu_pixman_color(PixelFormat *pf, uint32_t color);
70 pixman_image_t *qemu_pixman_glyph_from_vgafont(int height, const uint8_t *font,
71                                                unsigned int ch);
72 void qemu_pixman_glyph_render(pixman_image_t *glyph,
73                               pixman_image_t *surface,
74                               pixman_color_t *fgcol,
75                               pixman_color_t *bgcol,
76                               int x, int y, int cw, int ch);
77 
78 #endif /* QEMU_PIXMAN_H */
79