Re: [PATCH 01/36] drm/fourcc: Add 2 plane YCbCr 10bit format support

From: Daniel Vetter
Date: Wed Sep 25 2019 - 07:24:07 EST

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On Tue, Sep 24, 2019 at 8:46 AM sandy.huang <hjc@xxxxxxxxxxxxxx> wrote:
>
>
> å 2019/9/23 äå9:06, Daniel Vetter åé:
> > On Mon, Sep 23, 2019 at 2:40 PM Sandy Huang <hjc@xxxxxxxxxxxxxx> wrote:
> >> The drm_format_info.cpp[3] unit is BytePerPlane, when we add define
> >> 10bit YUV format, here have some problem.
> >> So we change cpp to bpp, use unit BitPerPlane to describe the data
> >> format.
> >>
> >> Signed-off-by: Sandy Huang <hjc@xxxxxxxxxxxxxx>
> > Whatever the layout you have for these (it's not really defined in
> > your patch here down to the level of detail we want) I think this
> > should be described with the block_h/w and char_per_block
> > functionality. Not by extending the legacy and depcrecated cpp
> > somehow.
> > -Daniel
>
> Hi Daniel,
>
> It seems the char_per_block and block_h/w can't describing the following
> data format:
>
> /*
> * 2x2 subsampled Cr:Cb plane 10 bits per channel
> * index 0 = Y plane, [9:0]
> * index 1 = Cr:Cb plane, [19:0] Cr:x:Cb:x [19:0]
> */

We can't allocate individual bits, buffers are always at least byte
aligned. And once you have that, you can actually do that.

Or maybe this is a lot more funnier format, which has aven
non-byte-aligned strides. Which would be rather surprising.

Anyway either needs a lot more comments, or just need to use the
infrastructure we have already. E.g. for your case: 4 pixels with 10
bits each gives you 5*8 = 40 bits of 5 bytes. So you very much can
describe this format accurately with the block layout stuff, with a
block size of 4 pixels wide and 1 pixel height and a byte size per
block of 5 bytes. Similar for the others.
-Daniel

>
> >> ---
> >> drivers/gpu/drm/drm_client.c | 4 +-
> >> drivers/gpu/drm/drm_fb_helper.c | 8 +-
> >> drivers/gpu/drm/drm_format_helper.c | 4 +-
> >> drivers/gpu/drm/drm_fourcc.c | 172 +++++++++++++++++++-----------------
> >> drivers/gpu/drm/drm_framebuffer.c | 2 +-
> >> include/drm/drm_fourcc.h | 4 +-
> >> include/uapi/drm/drm_fourcc.h | 15 ++++
> >> 7 files changed, 115 insertions(+), 94 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
> >> index d9a2e36..a36ffbe 100644
> >> --- a/drivers/gpu/drm/drm_client.c
> >> +++ b/drivers/gpu/drm/drm_client.c
> >> @@ -263,7 +263,7 @@ drm_client_buffer_create(struct drm_client_dev *client, u32 width, u32 height, u
> >>
> >> dumb_args.width = width;
> >> dumb_args.height = height;
> >> - dumb_args.bpp = info->cpp[0] * 8;
> >> + dumb_args.bpp = info->bpp[0];
> >> ret = drm_mode_create_dumb(dev, &dumb_args, client->file);
> >> if (ret)
> >> goto err_delete;
> >> @@ -366,7 +366,7 @@ static int drm_client_buffer_addfb(struct drm_client_buffer *buffer,
> >> int ret;
> >>
> >> info = drm_format_info(format);
> >> - fb_req.bpp = info->cpp[0] * 8;
> >> + fb_req.bpp = info->bpp[0];
> >> fb_req.depth = info->depth;
> >> fb_req.width = width;
> >> fb_req.height = height;
> >> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> >> index a7ba5b4..b30e782 100644
> >> --- a/drivers/gpu/drm/drm_fb_helper.c
> >> +++ b/drivers/gpu/drm/drm_fb_helper.c
> >> @@ -382,7 +382,7 @@ static void drm_fb_helper_dirty_blit_real(struct drm_fb_helper *fb_helper,
> >> struct drm_clip_rect *clip)
> >> {
> >> struct drm_framebuffer *fb = fb_helper->fb;
> >> - unsigned int cpp = fb->format->cpp[0];
> >> + unsigned int cpp = fb->format->bpp[0] / 8;
> >> size_t offset = clip->y1 * fb->pitches[0] + clip->x1 * cpp;
> >> void *src = fb_helper->fbdev->screen_buffer + offset;
> >> void *dst = fb_helper->buffer->vaddr + offset;
> >> @@ -1320,14 +1320,14 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
> >> * Changes struct fb_var_screeninfo are currently not pushed back
> >> * to KMS, hence fail if different settings are requested.
> >> */
> >> - if (var->bits_per_pixel != fb->format->cpp[0] * 8 ||
> >> + if (var->bits_per_pixel != fb->format->bpp[0] ||
> >> var->xres > fb->width || var->yres > fb->height ||
> >> var->xres_virtual > fb->width || var->yres_virtual > fb->height) {
> >> DRM_DEBUG("fb requested width/height/bpp can't fit in current fb "
> >> "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n",
> >> var->xres, var->yres, var->bits_per_pixel,
> >> var->xres_virtual, var->yres_virtual,
> >> - fb->width, fb->height, fb->format->cpp[0] * 8);
> >> + fb->width, fb->height, fb->format->bpp[0]);
> >> return -EINVAL;
> >> }
> >>
> >> @@ -1678,7 +1678,7 @@ static void drm_fb_helper_fill_var(struct fb_info *info,
> >> info->pseudo_palette = fb_helper->pseudo_palette;
> >> info->var.xres_virtual = fb->width;
> >> info->var.yres_virtual = fb->height;
> >> - info->var.bits_per_pixel = fb->format->cpp[0] * 8;
> >> + info->var.bits_per_pixel = fb->format->bpp[0];
> >> info->var.accel_flags = FB_ACCELF_TEXT;
> >> info->var.xoffset = 0;
> >> info->var.yoffset = 0;
> >> diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
> >> index 0897cb9..eea3afb 100644
> >> --- a/drivers/gpu/drm/drm_format_helper.c
> >> +++ b/drivers/gpu/drm/drm_format_helper.c
> >> @@ -36,7 +36,7 @@ static unsigned int clip_offset(struct drm_rect *clip,
> >> void drm_fb_memcpy(void *dst, void *vaddr, struct drm_framebuffer *fb,
> >> struct drm_rect *clip)
> >> {
> >> - unsigned int cpp = fb->format->cpp[0];
> >> + unsigned int cpp = fb->format->bpp[0] / 8;
> >> size_t len = (clip->x2 - clip->x1) * cpp;
> >> unsigned int y, lines = clip->y2 - clip->y1;
> >>
> >> @@ -63,7 +63,7 @@ void drm_fb_memcpy_dstclip(void __iomem *dst, void *vaddr,
> >> struct drm_framebuffer *fb,
> >> struct drm_rect *clip)
> >> {
> >> - unsigned int cpp = fb->format->cpp[0];
> >> + unsigned int cpp = fb->format->bpp[0] / 8;
> >> unsigned int offset = clip_offset(clip, fb->pitches[0], cpp);
> >> size_t len = (clip->x2 - clip->x1) * cpp;
> >> unsigned int y, lines = clip->y2 - clip->y1;
> >> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> >> index c630064..071dc07 100644
> >> --- a/drivers/gpu/drm/drm_fourcc.c
> >> +++ b/drivers/gpu/drm/drm_fourcc.c
> >> @@ -157,89 +157,95 @@ EXPORT_SYMBOL(drm_get_format_name);
> >> const struct drm_format_info *__drm_format_info(u32 format)
> >> {
> >> static const struct drm_format_info formats[] = {
> >> - { .format = DRM_FORMAT_C8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_RGB332, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_BGR233, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_XRGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_XBGR4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_RGBX4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_BGRX4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_ARGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_ABGR4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_RGBA4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_BGRA4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_XRGB1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_XBGR1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_RGBX5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_BGRX5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_ARGB1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_ABGR1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_RGBA5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_BGRA5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_BGR565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_RGB888, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_BGR888, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_RGBX8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_BGRX8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_RGB565_A8, .depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_BGR565_A8, .depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_RGBX1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_BGRX1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_RGBA1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_BGRA1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_RGBA8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_XRGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_XBGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> - { .format = DRM_FORMAT_ARGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_ABGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_RGB888_A8, .depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_BGR888_A8, .depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_XRGB8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_XBGR8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_RGBX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_BGRX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> - { .format = DRM_FORMAT_YUV410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YVU410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YUV411, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YVU411, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YUV420, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YVU420, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YUV422, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YVU422, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YUV444, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YVU444, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_NV12, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> - { .format = DRM_FORMAT_NV21, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> - { .format = DRM_FORMAT_NV16, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_NV61, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_NV24, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_NV42, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YUYV, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_YVYU, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_XYUV8888, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_VUY888, .depth = 0, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >> - { .format = DRM_FORMAT_Y210, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_Y212, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_Y216, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_Y410, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >> - { .format = DRM_FORMAT_Y412, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >> - { .format = DRM_FORMAT_Y416, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >> - { .format = DRM_FORMAT_XVYU2101010, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_XVYU12_16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> - { .format = DRM_FORMAT_XVYU16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_C8, .depth = 8, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_RGB332, .depth = 8, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_BGR233, .depth = 8, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_XRGB4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_XBGR4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_RGBX4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_BGRX4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_ARGB4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_ABGR4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_RGBA4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_BGRA4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_XRGB1555, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_XBGR1555, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_RGBX5551, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_BGRX5551, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_ARGB1555, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_ABGR1555, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_RGBA5551, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_BGRA5551, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_BGR565, .depth = 16, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_RGB888, .depth = 24, .num_planes = 1, .cpp = { 24, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_BGR888, .depth = 24, .num_planes = 1, .cpp = { 24, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_RGBX8888, .depth = 24, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_BGRX8888, .depth = 24, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_RGB565_A8, .depth = 24, .num_planes = 2, .cpp = { 16, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_BGR565_A8, .depth = 24, .num_planes = 2, .cpp = { 16, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_RGBX1010102, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_BGRX1010102, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_RGBA1010102, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_BGRA1010102, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_RGBA8888, .depth = 32, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_XRGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_XBGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> + { .format = DRM_FORMAT_ARGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_ABGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_RGB888_A8, .depth = 32, .num_planes = 2, .cpp = { 24, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_BGR888_A8, .depth = 32, .num_planes = 2, .cpp = { 24, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_XRGB8888_A8, .depth = 32, .num_planes = 2, .cpp = { 32, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_XBGR8888_A8, .depth = 32, .num_planes = 2, .cpp = { 32, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_RGBX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 32, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_BGRX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 32, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> >> + { .format = DRM_FORMAT_YUV410, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 4, .vsub = 4, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YVU410, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 4, .vsub = 4, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YUV411, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 4, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YVU411, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 4, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YUV420, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YVU420, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YUV422, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YVU422, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YUV444, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YVU444, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV12, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV21, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV16, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV61, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV24, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV42, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV12_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV21_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV16_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV61_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV24_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_NV42_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YUYV, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_YVYU, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_XYUV8888, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_VUY888, .depth = 0, .num_planes = 1, .cpp = { 24, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >> + { .format = DRM_FORMAT_Y210, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_Y212, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_Y216, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_Y410, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >> + { .format = DRM_FORMAT_Y412, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >> + { .format = DRM_FORMAT_Y416, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >> + { .format = DRM_FORMAT_XVYU2101010, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_XVYU12_16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> + { .format = DRM_FORMAT_XVYU16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
> >> { .format = DRM_FORMAT_Y0L0, .depth = 0, .num_planes = 1,
> >> .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
> >> .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
> >> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> >> index 0b72468..7b29e97 100644
> >> --- a/drivers/gpu/drm/drm_framebuffer.c
> >> +++ b/drivers/gpu/drm/drm_framebuffer.c
> >> @@ -530,7 +530,7 @@ int drm_mode_getfb(struct drm_device *dev,
> >> r->height = fb->height;
> >> r->width = fb->width;
> >> r->depth = fb->format->depth;
> >> - r->bpp = fb->format->cpp[0] * 8;
> >> + r->bpp = fb->format->bpp[0];
> >> r->pitch = fb->pitches[0];
> >>
> >> /* GET_FB() is an unprivileged ioctl so we must not return a
> >> diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
> >> index 306d1ef..021358d 100644
> >> --- a/include/drm/drm_fourcc.h
> >> +++ b/include/drm/drm_fourcc.h
> >> @@ -73,12 +73,12 @@ struct drm_format_info {
> >> /**
> >> * @cpp:
> >> *
> >> - * Number of bytes per pixel (per plane), this is aliased with
> >> + * Number of bits per pixel (per plane), this is aliased with
> >> * @char_per_block. It is deprecated in favour of using the
> >> * triplet @char_per_block, @block_w, @block_h for better
> >> * describing the pixel format.
> >> */
> >> - u8 cpp[3];
> >> + u8 bpp[3];
> >>
> >> /**
> >> * @char_per_block:
> >> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> >> index 3feeaa3..5fe89e9 100644
> >> --- a/include/uapi/drm/drm_fourcc.h
> >> +++ b/include/uapi/drm/drm_fourcc.h
> >> @@ -266,6 +266,21 @@ extern "C" {
> >> #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */
> >>
> >> /*
> >> + * 2 plane YCbCr 10bit
> >> + * index 0 = Y plane, [9:0] Y
> >> + * index 1 = Cr:Cb plane, [19:0] Cr:Cb little endian
> >> + * or
> >> + * index 1 = Cb:Cr plane, [19:0] Cb:Cr little endian
> >> + */
> >> +
> >> +#define DRM_FORMAT_NV12_10 fourcc_code('N', 'A', '1', '2') /* 2x2 subsampled Cr:Cb plane */
> >> +#define DRM_FORMAT_NV21_10 fourcc_code('N', 'A', '2', '1') /* 2x2 subsampled Cb:Cr plane */
> >> +#define DRM_FORMAT_NV16_10 fourcc_code('N', 'A', '1', '6') /* 2x1 subsampled Cr:Cb plane */
> >> +#define DRM_FORMAT_NV61_10 fourcc_code('N', 'A', '6', '1') /* 2x1 subsampled Cb:Cr plane */
> >> +#define DRM_FORMAT_NV24_10 fourcc_code('N', 'A', '2', '4') /* non-subsampled Cr:Cb plane */
> >> +#define DRM_FORMAT_NV42_10 fourcc_code('N', 'A', '4', '2') /* non-subsampled Cb:Cr plane */
> >> +
> >> +/*
> >> * 3 plane YCbCr
> >> * index 0: Y plane, [7:0] Y
> >> * index 1: Cb plane, [7:0] Cb
> >> --
> >> 2.7.4
> >>
> >>
> >>
> >
>
>

--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch

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