Am Freitag, den 19.05.2017, 10:37 +0100 schrieb Daniel Stone:
> From: Varad Gautam <varad.gau...@collabora.com>
>
> ask the driver for supported dmabuf formats
>
> v2: rebase to master.
> v3: return false on failure.
> v4: use pscreen->is_format_supported instead of adding a new query.
> (Lucas Stach)
> Signed-off-by: Varad Gautam <varad.gau...@collabora.com>
> Signed-off-by: Daniel Stone <dani...@collabora.com>
Reviewed-by: Lucas Stach <l.st...@pengutronix.de>
> ---
> src/gallium/state_trackers/dri/dri2.c | 91
> +++++++++++++++++++++++++++++++++++
> 1 file changed, 91 insertions(+)
>
> diff --git a/src/gallium/state_trackers/dri/dri2.c
> b/src/gallium/state_trackers/dri/dri2.c
> index 3f83cc96cc..814a08e3cb 100644
> --- a/src/gallium/state_trackers/dri/dri2.c
> +++ b/src/gallium/state_trackers/dri/dri2.c
> @@ -216,6 +216,69 @@ static enum pipe_format dri2_format_to_pipe_format (int
> format)
> return pf;
> }
>
> +static enum pipe_format fourcc_to_pipe_format(int fourcc) {
> + enum pipe_format pf;
> +
> + switch (fourcc) {
> + case __DRI_IMAGE_FOURCC_R8:
> + pf = PIPE_FORMAT_R8_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_GR88:
> + pf = PIPE_FORMAT_RG88_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_ARGB1555:
> + pf = PIPE_FORMAT_B5G5R5A1_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_R16:
> + pf = PIPE_FORMAT_R16_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_GR1616:
> + pf = PIPE_FORMAT_RG1616_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_RGB565:
> + pf = PIPE_FORMAT_B5G6R5_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_ARGB8888:
> + pf = PIPE_FORMAT_BGRA8888_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_XRGB8888:
> + pf = PIPE_FORMAT_BGRX8888_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_ABGR8888:
> + pf = PIPE_FORMAT_RGBA8888_UNORM;
> + break;
> + case __DRI_IMAGE_FOURCC_XBGR8888:
> + pf = PIPE_FORMAT_RGBX8888_UNORM;
> + break;
> +
> + case __DRI_IMAGE_FOURCC_NV12:
> + pf = PIPE_FORMAT_NV12;
> + break;
> + case __DRI_IMAGE_FOURCC_YUYV:
> + pf = PIPE_FORMAT_YUYV;
> + break;
> + case __DRI_IMAGE_FOURCC_YUV420:
> + case __DRI_IMAGE_FOURCC_YVU420:
> + pf = PIPE_FORMAT_YV12;
> + break;
> +
> + case __DRI_IMAGE_FOURCC_SARGB8888:
> + case __DRI_IMAGE_FOURCC_YUV410:
> + case __DRI_IMAGE_FOURCC_YUV411:
> + case __DRI_IMAGE_FOURCC_YUV422:
> + case __DRI_IMAGE_FOURCC_YUV444:
> + case __DRI_IMAGE_FOURCC_NV16:
> + case __DRI_IMAGE_FOURCC_YVU410:
> + case __DRI_IMAGE_FOURCC_YVU411:
> + case __DRI_IMAGE_FOURCC_YVU422:
> + case __DRI_IMAGE_FOURCC_YVU444:
> + default:
> + pf = PIPE_FORMAT_NONE;
> + }
> +
> + return pf;
> +}
> +
> /**
> * DRI2 flush extension.
> */
> @@ -1343,6 +1406,31 @@ dri2_from_fds(__DRIscreen *screen, int width, int
> height, int fourcc,
> return img;
> }
>
> +static boolean
> +dri2_query_dma_buf_formats(__DRIscreen *_screen, int max, int *formats,
> + int *count)
> +{
> + struct dri_screen *screen = dri_screen(_screen);
> + struct pipe_screen *pscreen = screen->base.screen;
> + const unsigned bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
> + int i, j;
> +
> + for (i = 0, j = 0; (i < ARRAY_SIZE(image_formats)) &&
> + (j < max || max == 0); i++) {
> + if (pscreen->is_format_supported(pscreen,
> + fourcc_to_pipe_format(
> + image_formats[i].fourcc),
> + screen->target,
> + 0, bind)) {
> + if (j < max)
> + formats[j] = image_formats[i].fourcc;
> + j++;
> + }
> + }
> + *count = j;
> + return true;
> +}
> +
> static __DRIimage *
> dri2_from_dma_bufs(__DRIscreen *screen,
> int width, int height, int fourcc,
> @@ -1529,6 +1617,7 @@ static __DRIimageExtension dri2ImageExtension = {
> .unmapImage = dri2_unmap_image,
> .createImageWithModifiers = NULL,
> .createImageFromDmaBufs2 = NULL,
> + .queryDmaBufFormats = NULL,
> };
>
>
> @@ -2075,6 +2164,7 @@ dri2_init_screen(__DRIscreen * sPriv)
> dri2ImageExtension.createImageFromFds = dri2_from_fds;
> dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
> dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
> + dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
> }
> }
>
> @@ -2152,6 +2242,7 @@ dri_kms_init_screen(__DRIscreen * sPriv)
> dri2ImageExtension.createImageFromFds = dri2_from_fds;
> dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
> dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
> + dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
> }
>
> sPriv->extensions = dri_screen_extensions;
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