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ui/pixman: Add qemu_pixman_to_drm_format()

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This new function to get the drm_format associated with a pixman
format will be useful while creating a dmabuf.

Based-on-patch-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Message-Id: <20210526231429.1045476-11-vivek.kasireddy@intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Vivek Kasireddy 2021-05-26 16:14:25 -07:00 committed by Gerd Hoffmann
parent e0933d91b1
commit 8069b73bee
2 changed files with 25 additions and 11 deletions
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1
include/ui/qemu-pixman.h
View File

@ -62,6 +62,7 @@ typedef struct PixelFormat {
PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format);
pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian);
pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format);
uint32_t qemu_pixman_to_drm_format(pixman_format_code_t pixman);
int qemu_pixman_get_type(int rshift, int gshift, int bshift);
pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf);
bool qemu_pixman_check_format(DisplayChangeListener *dcl,

35
ui/qemu-pixman.c
View File

@ -89,21 +89,34 @@ pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian)
}
/* Note: drm is little endian, pixman is native endian */
static const struct {
uint32_t drm_format;
pixman_format_code_t pixman_format;
} drm_format_pixman_map[] = {
{ DRM_FORMAT_RGB888, PIXMAN_LE_r8g8b8 },
{ DRM_FORMAT_ARGB8888, PIXMAN_LE_a8r8g8b8 },
{ DRM_FORMAT_XRGB8888, PIXMAN_LE_x8r8g8b8 }
};
pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format)
{
static const struct {
uint32_t drm_format;
pixman_format_code_t pixman;
} map[] = {
{ DRM_FORMAT_RGB888, PIXMAN_LE_r8g8b8 },
{ DRM_FORMAT_ARGB8888, PIXMAN_LE_a8r8g8b8 },
{ DRM_FORMAT_XRGB8888, PIXMAN_LE_x8r8g8b8 }
};
int i;
for (i = 0; i < ARRAY_SIZE(map); i++) {
if (drm_format == map[i].drm_format) {
return map[i].pixman;
for (i = 0; i < ARRAY_SIZE(drm_format_pixman_map); i++) {
if (drm_format == drm_format_pixman_map[i].drm_format) {
return drm_format_pixman_map[i].pixman_format;
}
}
return 0;
}
uint32_t qemu_pixman_to_drm_format(pixman_format_code_t pixman_format)
{
int i;
for (i = 0; i < ARRAY_SIZE(drm_format_pixman_map); i++) {
if (pixman_format == drm_format_pixman_map[i].pixman_format) {
return drm_format_pixman_map[i].drm_format;
}
}
return 0;