diff options
| author | Javier Martinez Canillas <javierm@redhat.com> | 2022-02-23 20:37:35 +0100 |
|---|---|---|
| committer | Javier Martinez Canillas <javierm@redhat.com> | 2022-02-24 15:28:36 +0100 |
| commit | 24c6bedefbe71de94455032f82cdff2694c002b3 (patch) | |
| tree | 5586a8844f810bc9e5bf889f3e199cd8f2ae6c89 /drivers/gpu/drm/tiny/repaper.c | |
| parent | 94fa115f7b28a3f02611499175e134f0a823b686 (diff) | |
drm/repaper: Use format helper for xrgb8888 to monochrome conversion
There is now a drm_fb_xrgb8888_to_mono_reversed() helper function to do
format conversion from XRGB8888 to reversed monochrome.
Use that helper and remove the open coded version in the repaper driver.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220223193735.213185-1-javierm@redhat.com
Diffstat (limited to 'drivers/gpu/drm/tiny/repaper.c')
| -rw-r--r-- | drivers/gpu/drm/tiny/repaper.c | 24 |
1 files changed, 1 insertions, 23 deletions
diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c index 97a775c48cea..5c74e236b16d 100644 --- a/drivers/gpu/drm/tiny/repaper.c +++ b/drivers/gpu/drm/tiny/repaper.c @@ -508,26 +508,6 @@ static void repaper_get_temperature(struct repaper_epd *epd) epd->factored_stage_time = epd->stage_time * factor10x / 10; } -static void repaper_gray8_to_mono_reversed(u8 *buf, u32 width, u32 height) -{ - u8 *gray8 = buf, *mono = buf; - int y, xb, i; - - for (y = 0; y < height; y++) - for (xb = 0; xb < width / 8; xb++) { - u8 byte = 0x00; - - for (i = 0; i < 8; i++) { - int x = xb * 8 + i; - - byte >>= 1; - if (gray8[y * width + x] >> 7) - byte |= BIT(7); - } - *mono++ = byte; - } -} - static int repaper_fb_dirty(struct drm_framebuffer *fb) { struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0); @@ -560,12 +540,10 @@ static int repaper_fb_dirty(struct drm_framebuffer *fb) if (ret) goto out_free; - drm_fb_xrgb8888_to_gray8(buf, 0, cma_obj->vaddr, fb, &clip); + drm_fb_xrgb8888_to_mono_reversed(buf, 0, cma_obj->vaddr, fb, &clip); drm_gem_fb_end_cpu_access(fb, DMA_FROM_DEVICE); - repaper_gray8_to_mono_reversed(buf, fb->width, fb->height); - if (epd->partial) { repaper_frame_data_repeat(epd, buf, epd->current_frame, REPAPER_NORMAL); |