diff options
Diffstat (limited to 'drivers/gpu/drm/drm_format_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_format_helper.c | 43 |
1 files changed, 19 insertions, 24 deletions
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index abd18c23cfbb..5a2fe3d685a2 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -246,6 +246,23 @@ static int drm_fb_xfrm(struct iosys_map *dst, xfrm_line); } +static __always_inline void drm_fb_xfrm_line_32to24(void *dbuf, const void *sbuf, + unsigned int pixels, + u32 (*xfrm_pixel)(u32)) +{ + u8 *dbuf8 = dbuf; + const __le32 *sbuf32 = sbuf; + const __le32 *send32 = sbuf32 + pixels; + + while (sbuf32 < send32) { + u32 val24 = xfrm_pixel(le32_to_cpup(sbuf32++)); + /* write output in reverse order for little endianness */ + *dbuf8++ = (val24 & 0x000000ff); + *dbuf8++ = (val24 & 0x0000ff00) >> 8; + *dbuf8++ = (val24 & 0x00ff0000) >> 16; + } +} + static __always_inline void drm_fb_xfrm_line_32to32(void *dbuf, const void *sbuf, unsigned int pixels, u32 (*xfrm_pixel)(u32)) @@ -667,18 +684,7 @@ EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgba5551); static void drm_fb_xrgb8888_to_rgb888_line(void *dbuf, const void *sbuf, unsigned int pixels) { - u8 *dbuf8 = dbuf; - const __le32 *sbuf32 = sbuf; - unsigned int x; - u32 pix; - - for (x = 0; x < pixels; x++) { - pix = le32_to_cpu(sbuf32[x]); - /* write blue-green-red to output in little endianness */ - *dbuf8++ = (pix & 0x000000FF) >> 0; - *dbuf8++ = (pix & 0x0000FF00) >> 8; - *dbuf8++ = (pix & 0x00FF0000) >> 16; - } + drm_fb_xfrm_line_32to24(dbuf, sbuf, pixels, drm_pixel_xrgb8888_to_rgb888); } /** @@ -718,18 +724,7 @@ EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb888); static void drm_fb_xrgb8888_to_bgr888_line(void *dbuf, const void *sbuf, unsigned int pixels) { - u8 *dbuf8 = dbuf; - const __le32 *sbuf32 = sbuf; - unsigned int x; - u32 pix; - - for (x = 0; x < pixels; x++) { - pix = le32_to_cpu(sbuf32[x]); - /* write red-green-blue to output in little endianness */ - *dbuf8++ = (pix & 0x00ff0000) >> 16; - *dbuf8++ = (pix & 0x0000ff00) >> 8; - *dbuf8++ = (pix & 0x000000ff) >> 0; - } + drm_fb_xfrm_line_32to24(dbuf, sbuf, pixels, drm_pixel_xrgb8888_to_bgr888); } /** |