79a1f32559
This is a tiny subset of PIXMAN API that is used pervasively in QEMU codebase to manage images and identify the underlying format. It doesn't seems worth to wrap this in a QEMU-specific API. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Thomas Huth <thuth@redhat.com>
103 lines
3.9 KiB
C
103 lines
3.9 KiB
C
/*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_PIXMAN_H
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#define QEMU_PIXMAN_H
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#ifdef CONFIG_PIXMAN
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#include <pixman.h>
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#else
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#include "pixman-minimal.h"
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#endif
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/*
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* pixman image formats are defined to be native endian,
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* that means host byte order on qemu. So we go define
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* fixed formats here for cases where it is needed, like
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* feeding libjpeg / libpng and writing screenshots.
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*/
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#if HOST_BIG_ENDIAN
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# define PIXMAN_BE_r8g8b8 PIXMAN_r8g8b8
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# define PIXMAN_BE_x8r8g8b8 PIXMAN_x8r8g8b8
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# define PIXMAN_BE_a8r8g8b8 PIXMAN_a8r8g8b8
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# define PIXMAN_BE_b8g8r8x8 PIXMAN_b8g8r8x8
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# define PIXMAN_BE_b8g8r8a8 PIXMAN_b8g8r8a8
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# define PIXMAN_BE_r8g8b8x8 PIXMAN_r8g8b8x8
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# define PIXMAN_BE_r8g8b8a8 PIXMAN_r8g8b8a8
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# define PIXMAN_BE_x8b8g8r8 PIXMAN_x8b8g8r8
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# define PIXMAN_BE_a8b8g8r8 PIXMAN_a8b8g8r8
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# define PIXMAN_LE_r8g8b8 PIXMAN_b8g8r8
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# define PIXMAN_LE_a8r8g8b8 PIXMAN_b8g8r8a8
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# define PIXMAN_LE_x8r8g8b8 PIXMAN_b8g8r8x8
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# define PIXMAN_LE_a8b8g8r8 PIXMAN_r8g8b8a8
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# define PIXMAN_LE_x8b8g8r8 PIXMAN_r8g8b8x8
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#else
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# define PIXMAN_BE_r8g8b8 PIXMAN_b8g8r8
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# define PIXMAN_BE_x8r8g8b8 PIXMAN_b8g8r8x8
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# define PIXMAN_BE_a8r8g8b8 PIXMAN_b8g8r8a8
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# define PIXMAN_BE_b8g8r8x8 PIXMAN_x8r8g8b8
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# define PIXMAN_BE_b8g8r8a8 PIXMAN_a8r8g8b8
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# define PIXMAN_BE_r8g8b8x8 PIXMAN_x8b8g8r8
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# define PIXMAN_BE_r8g8b8a8 PIXMAN_a8b8g8r8
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# define PIXMAN_BE_x8b8g8r8 PIXMAN_r8g8b8x8
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# define PIXMAN_BE_a8b8g8r8 PIXMAN_r8g8b8a8
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# define PIXMAN_LE_r8g8b8 PIXMAN_r8g8b8
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# define PIXMAN_LE_a8r8g8b8 PIXMAN_a8r8g8b8
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# define PIXMAN_LE_x8r8g8b8 PIXMAN_x8r8g8b8
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# define PIXMAN_LE_a8b8g8r8 PIXMAN_a8b8g8r8
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# define PIXMAN_LE_x8b8g8r8 PIXMAN_x8b8g8r8
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#endif
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#define QEMU_PIXMAN_COLOR(r, g, b) \
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{ .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
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#define QEMU_PIXMAN_COLOR_BLACK QEMU_PIXMAN_COLOR(0x00, 0x00, 0x00)
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#define QEMU_PIXMAN_COLOR_GRAY QEMU_PIXMAN_COLOR(0xaa, 0xaa, 0xaa)
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/* -------------------------------------------------------------------- */
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typedef struct PixelFormat {
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uint8_t bits_per_pixel;
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uint8_t bytes_per_pixel;
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uint8_t depth; /* color depth in bits */
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uint32_t rmask, gmask, bmask, amask;
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uint8_t rshift, gshift, bshift, ashift;
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uint8_t rmax, gmax, bmax, amax;
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uint8_t rbits, gbits, bbits, abits;
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} PixelFormat;
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PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format);
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pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian);
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pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format);
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uint32_t qemu_pixman_to_drm_format(pixman_format_code_t pixman);
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int qemu_pixman_get_type(int rshift, int gshift, int bshift);
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bool qemu_pixman_check_format(DisplayChangeListener *dcl,
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pixman_format_code_t format);
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#ifdef CONFIG_PIXMAN
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pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf);
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pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format,
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int width);
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void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
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int width, int x, int y);
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pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
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pixman_image_t *image);
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pixman_image_t *qemu_pixman_glyph_from_vgafont(int height, const uint8_t *font,
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unsigned int ch);
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void qemu_pixman_glyph_render(pixman_image_t *glyph,
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pixman_image_t *surface,
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pixman_color_t *fgcol,
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pixman_color_t *bgcol,
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int x, int y, int cw, int ch);
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#endif
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void qemu_pixman_image_unref(pixman_image_t *image);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(pixman_image_t, qemu_pixman_image_unref)
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#endif /* QEMU_PIXMAN_H */
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