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st/dri: add support for dma-buf importer (DRIimage v8) 

This is just a simple implementation that stores the extra values into the DRIimage
struct and just uses the fd importer. I haven't looked into what is required
to import YUV or deal with the extra parameters.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2013-12-18 10:01:27 +10:00
parent 3fd081d1a5
commit 15b4ff3f4e
2 changed files with 57 additions and 1 deletions
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9
src/gallium/state_trackers/dri/common/dri_screen.h
View File

@ -95,6 +95,15 @@ struct __DRIimageRec {
uint32_t dri_components;
void *loader_private;
/**
* Provided by EGL_EXT_image_dma_buf_import.
*/
enum __DRIYUVColorSpace yuv_color_space;
enum __DRISampleRange sample_range;
enum __DRIChromaSiting horizontal_siting;
enum __DRIChromaSiting vertical_siting;
};
#ifndef __NOT_HAVE_DRM_H

49
src/gallium/state_trackers/dri/drm/dri2.c
View File

@ -974,6 +974,52 @@ dri2_from_fds(__DRIscreen *screen, int width, int height, int fourcc,
return img;
}
static __DRIimage *
dri2_from_dma_bufs(__DRIscreen *screen,
int width, int height, int fourcc,
int *fds, int num_fds,
int *strides, int *offsets,
enum __DRIYUVColorSpace yuv_color_space,
enum __DRISampleRange sample_range,
enum __DRIChromaSiting horizontal_siting,
enum __DRIChromaSiting vertical_siting,
unsigned *error,
void *loaderPrivate)
{
__DRIimage *img;
int format, stride, dri_components;
if (num_fds != 1 || offsets[0] != 0) {
*error = __DRI_IMAGE_ERROR_BAD_MATCH;
return NULL;
}
format = convert_fourcc(fourcc, &dri_components);
if (format == -1) {
*error = __DRI_IMAGE_ERROR_BAD_MATCH;
return NULL;
}
/* Strides are in bytes not pixels. */
stride = strides[0] /4;
img = dri2_create_image_from_fd(screen, width, height, format,
fds[0], stride, loaderPrivate);
if (img == NULL) {
*error = __DRI_IMAGE_ERROR_BAD_ALLOC;
return NULL;
}
img->yuv_color_space = yuv_color_space;
img->sample_range = sample_range;
img->horizontal_siting = horizontal_siting;
img->vertical_siting = vertical_siting;
img->dri_components = dri_components;
*error = __DRI_IMAGE_ERROR_SUCCESS;
return img;
}
static void
dri2_destroy_image(__DRIimage *img)
{
@ -1048,8 +1094,9 @@ dri2_init_screen(__DRIscreen * sPriv)
if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
(cap & DRM_PRIME_CAP_IMPORT)) {
dri2ImageExtension.base.version = 7;
dri2ImageExtension.base.version = 8;
dri2ImageExtension.createImageFromFds = dri2_from_fds;
dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
}
}