1ff788db97
Use a common shareable type for win32 & unix, and helper functions. This simplify the code as it avoids a lot of #ifdef'ery. Note: if it helps review, commits could be reordered to introduce the common type before introducing shareable memory for unix. Suggested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-ID: <20241008125028.1177932-19-marcandre.lureau@redhat.com>
127 lines
4.5 KiB
C
127 lines
4.5 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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#include "qapi/error.h"
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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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#ifdef WIN32
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typedef HANDLE qemu_pixman_shareable;
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#define SHAREABLE_NONE (NULL)
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#define SHAREABLE_TO_PTR(handle) (handle)
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#define PTR_TO_SHAREABLE(ptr) (ptr)
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#else
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typedef int qemu_pixman_shareable;
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#define SHAREABLE_NONE (-1)
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#define SHAREABLE_TO_PTR(handle) GINT_TO_POINTER(handle)
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#define PTR_TO_SHAREABLE(ptr) GPOINTER_TO_INT(ptr)
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#endif
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bool qemu_pixman_image_new_shareable(
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pixman_image_t **image,
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qemu_pixman_shareable *handle,
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const char *name,
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pixman_format_code_t format,
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int width,
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int height,
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int rowstride_bytes,
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Error **errp);
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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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