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drm: add drm_fb_xrgb8888_to_rgb565_dstclip()

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It is a drm_fb_xrgb8888_to_rgb565() variant which checks the clip
rectangle for the destination too.

Common code between drm_fb_xrgb8888_to_rgb565() and
drm_fb_xrgb8888_to_rgb565_dstclip() was factored out into the
drm_fb_xrgb8888_to_rgb565_lines() helper function.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190405095219.9231-4-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2019-04-05 11:52:17 +02:00
parent 26f024f54a
commit bcc4442008
2 changed files with 86 additions and 32 deletions
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5
include/drm/drm_format_helper.h
View file

@ -19,9 +19,12 @@ void drm_fb_memcpy_dstclip(void *dst, void *vaddr, struct drm_framebuffer *fb,
struct drm_rect *clip);
void drm_fb_swab16(u16 *dst, void *vaddr, struct drm_framebuffer *fb,
struct drm_rect *clip);
void drm_fb_xrgb8888_to_rgb565(u16 *dst, void *vaddr,
void drm_fb_xrgb8888_to_rgb565(void *dst, void *vaddr,
struct drm_framebuffer *fb,
struct drm_rect *clip, bool swap);
void drm_fb_xrgb8888_to_rgb565_dstclip(void *dst, unsigned int dst_pitch,
void *vaddr, struct drm_framebuffer *fb,
struct drm_rect *clip, bool swap);
void drm_fb_xrgb8888_to_gray8(u8 *dst, void *vaddr, struct drm_framebuffer *fb,
struct drm_rect *clip);