#include <string.h>
#include <sys/mman.h>
#include <xf86drm.h>
+#include <xf86drmMode.h>
#include "drv_priv.h"
#include "helpers.h"
#include "util.h"
-size_t drv_num_planes_from_format(uint32_t format)
-{
- switch (format) {
- case DRV_FORMAT_C8:
- case DRV_FORMAT_R8:
- case DRV_FORMAT_RG88:
- case DRV_FORMAT_GR88:
- case DRV_FORMAT_RGB332:
- case DRV_FORMAT_BGR233:
- case DRV_FORMAT_XRGB4444:
- case DRV_FORMAT_XBGR4444:
- case DRV_FORMAT_RGBX4444:
- case DRV_FORMAT_BGRX4444:
- case DRV_FORMAT_ARGB4444:
- case DRV_FORMAT_ABGR4444:
- case DRV_FORMAT_RGBA4444:
- case DRV_FORMAT_BGRA4444:
- case DRV_FORMAT_XRGB1555:
- case DRV_FORMAT_XBGR1555:
- case DRV_FORMAT_RGBX5551:
- case DRV_FORMAT_BGRX5551:
- case DRV_FORMAT_ARGB1555:
- case DRV_FORMAT_ABGR1555:
- case DRV_FORMAT_RGBA5551:
- case DRV_FORMAT_BGRA5551:
- case DRV_FORMAT_RGB565:
- case DRV_FORMAT_BGR565:
- case DRV_FORMAT_YUYV:
- case DRV_FORMAT_YVYU:
- case DRV_FORMAT_UYVY:
- case DRV_FORMAT_VYUY:
- case DRV_FORMAT_RGB888:
- case DRV_FORMAT_BGR888:
- case DRV_FORMAT_XRGB8888:
- case DRV_FORMAT_XBGR8888:
- case DRV_FORMAT_RGBX8888:
- case DRV_FORMAT_BGRX8888:
- case DRV_FORMAT_ARGB8888:
- case DRV_FORMAT_ABGR8888:
- case DRV_FORMAT_RGBA8888:
- case DRV_FORMAT_BGRA8888:
- case DRV_FORMAT_XRGB2101010:
- case DRV_FORMAT_XBGR2101010:
- case DRV_FORMAT_RGBX1010102:
- case DRV_FORMAT_BGRX1010102:
- case DRV_FORMAT_ARGB2101010:
- case DRV_FORMAT_ABGR2101010:
- case DRV_FORMAT_RGBA1010102:
- case DRV_FORMAT_BGRA1010102:
- case DRV_FORMAT_AYUV:
- return 1;
- case DRV_FORMAT_NV12:
- return 2;
- case DRV_FORMAT_YVU420:
- return 3;
- }
-
- fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
- return 0;
-}
-
int drv_bpp_from_format(uint32_t format, size_t plane)
{
assert(plane < drv_num_planes_from_format(format));
switch (format) {
- case DRV_FORMAT_C8:
- case DRV_FORMAT_R8:
- case DRV_FORMAT_RGB332:
- case DRV_FORMAT_BGR233:
+ case DRM_FORMAT_BGR233:
+ case DRM_FORMAT_C8:
+ case DRM_FORMAT_R8:
+ case DRM_FORMAT_RGB332:
+ case DRM_FORMAT_YVU420:
return 8;
- case DRV_FORMAT_NV12:
- return (plane == 0) ? 8 : 4;
- case DRV_FORMAT_YVU420:
- return (plane == 0) ? 8 : 2;
-
- case DRV_FORMAT_RG88:
- case DRV_FORMAT_GR88:
- case DRV_FORMAT_XRGB4444:
- case DRV_FORMAT_XBGR4444:
- case DRV_FORMAT_RGBX4444:
- case DRV_FORMAT_BGRX4444:
- case DRV_FORMAT_ARGB4444:
- case DRV_FORMAT_ABGR4444:
- case DRV_FORMAT_RGBA4444:
- case DRV_FORMAT_BGRA4444:
- case DRV_FORMAT_XRGB1555:
- case DRV_FORMAT_XBGR1555:
- case DRV_FORMAT_RGBX5551:
- case DRV_FORMAT_BGRX5551:
- case DRV_FORMAT_ARGB1555:
- case DRV_FORMAT_ABGR1555:
- case DRV_FORMAT_RGBA5551:
- case DRV_FORMAT_BGRA5551:
- case DRV_FORMAT_RGB565:
- case DRV_FORMAT_BGR565:
- case DRV_FORMAT_YUYV:
- case DRV_FORMAT_YVYU:
- case DRV_FORMAT_UYVY:
- case DRV_FORMAT_VYUY:
+ /*
+ * NV12 is laid out as follows. Each letter represents a byte.
+ * Y plane:
+ * Y0_0, Y0_1, Y0_2, Y0_3, ..., Y0_N
+ * Y1_0, Y1_1, Y1_2, Y1_3, ..., Y1_N
+ * ...
+ * YM_0, YM_1, YM_2, YM_3, ..., YM_N
+ * CbCr plane:
+ * Cb01_01, Cr01_01, Cb01_23, Cr01_23, ..., Cb01_(N-1)N, Cr01_(N-1)N
+ * Cb23_01, Cr23_01, Cb23_23, Cr23_23, ..., Cb23_(N-1)N, Cr23_(N-1)N
+ * ...
+ * Cb(M-1)M_01, Cr(M-1)M_01, ..., Cb(M-1)M_(N-1)N, Cr(M-1)M_(N-1)N
+ *
+ * Pixel (0, 0) requires Y0_0, Cb01_01 and Cr01_01. Pixel (0, 1) requires
+ * Y0_1, Cb01_01 and Cr01_01. So for a single pixel, 2 bytes of luma data
+ * are required.
+ */
+ case DRM_FORMAT_NV12:
+ return (plane == 0) ? 8 : 16;
+
+ case DRM_FORMAT_ABGR1555:
+ case DRM_FORMAT_ABGR4444:
+ case DRM_FORMAT_ARGB1555:
+ case DRM_FORMAT_ARGB4444:
+ case DRM_FORMAT_BGR565:
+ case DRM_FORMAT_BGRA4444:
+ case DRM_FORMAT_BGRA5551:
+ case DRM_FORMAT_BGRX4444:
+ case DRM_FORMAT_BGRX5551:
+ case DRM_FORMAT_GR88:
+ case DRM_FORMAT_RG88:
+ case DRM_FORMAT_RGB565:
+ case DRM_FORMAT_RGBA4444:
+ case DRM_FORMAT_RGBA5551:
+ case DRM_FORMAT_RGBX4444:
+ case DRM_FORMAT_RGBX5551:
+ case DRM_FORMAT_UYVY:
+ case DRM_FORMAT_VYUY:
+ case DRM_FORMAT_XBGR1555:
+ case DRM_FORMAT_XBGR4444:
+ case DRM_FORMAT_XRGB1555:
+ case DRM_FORMAT_XRGB4444:
+ case DRM_FORMAT_YUYV:
+ case DRM_FORMAT_YVYU:
return 16;
- case DRV_FORMAT_RGB888:
- case DRV_FORMAT_BGR888:
+ case DRM_FORMAT_BGR888:
+ case DRM_FORMAT_RGB888:
return 24;
- case DRV_FORMAT_XRGB8888:
- case DRV_FORMAT_XBGR8888:
- case DRV_FORMAT_RGBX8888:
- case DRV_FORMAT_BGRX8888:
- case DRV_FORMAT_ARGB8888:
- case DRV_FORMAT_ABGR8888:
- case DRV_FORMAT_RGBA8888:
- case DRV_FORMAT_BGRA8888:
- case DRV_FORMAT_XRGB2101010:
- case DRV_FORMAT_XBGR2101010:
- case DRV_FORMAT_RGBX1010102:
- case DRV_FORMAT_BGRX1010102:
- case DRV_FORMAT_ARGB2101010:
- case DRV_FORMAT_ABGR2101010:
- case DRV_FORMAT_RGBA1010102:
- case DRV_FORMAT_BGRA1010102:
- case DRV_FORMAT_AYUV:
+ case DRM_FORMAT_ABGR2101010:
+ case DRM_FORMAT_ABGR8888:
+ case DRM_FORMAT_ARGB2101010:
+ case DRM_FORMAT_ARGB8888:
+ case DRM_FORMAT_AYUV:
+ case DRM_FORMAT_BGRA1010102:
+ case DRM_FORMAT_BGRA8888:
+ case DRM_FORMAT_BGRX1010102:
+ case DRM_FORMAT_BGRX8888:
+ case DRM_FORMAT_RGBA1010102:
+ case DRM_FORMAT_RGBA8888:
+ case DRM_FORMAT_RGBX1010102:
+ case DRM_FORMAT_RGBX8888:
+ case DRM_FORMAT_XBGR2101010:
+ case DRM_FORMAT_XBGR8888:
+ case DRM_FORMAT_XRGB2101010:
+ case DRM_FORMAT_XRGB8888:
return 32;
}
}
/*
- * This function returns the stride for a given format, width and plane.
- */
-int drv_stride_from_format(uint32_t format, uint32_t width, size_t plane)
-{
- /* Get stride of the first plane */
- int stride = width * DIV_ROUND_UP(drv_bpp_from_format(format, 0), 8);
-
- /*
- * Only downsample for certain multiplanar formats which are not
- * interleaved and have horizontal subsampling. Only formats supported
- * by our drivers are listed here -- add more as needed.
- */
- if (plane != 0) {
- switch (format) {
- case DRV_FORMAT_YVU420:
- stride = stride / 2;
- }
- }
-
- return stride;
-}
-
-/*
* This function fills in the buffer object given driver aligned dimensions
* and a format. This function assumes there is just one kernel buffer per
* buffer object.
*/
int drv_bo_from_format(struct bo *bo, uint32_t width, uint32_t height,
- drv_format_t format)
+ uint32_t format)
{
- switch (format) {
- case DRV_FORMAT_YVU420:
- bo->strides[0] = drv_stride_from_format(format, width, 0);
- bo->strides[1] = drv_stride_from_format(format, width, 1);
- bo->strides[2] = drv_stride_from_format(format, width, 2);
- bo->sizes[0] = height * bo->strides[0];
- bo->sizes[1] = bo->sizes[2] = (height / 2) * bo->strides[1];
- bo->offsets[0] = 0;
- bo->offsets[1] = bo->sizes[0];
- bo->offsets[2] = bo->offsets[1] + bo->sizes[1];
- break;
- case DRV_FORMAT_NV12:
- bo->strides[0] = drv_stride_from_format(format, width, 0);
- bo->strides[1] = drv_stride_from_format(format, width, 1);
- bo->sizes[0] = height * bo->strides[0];
- bo->sizes[1] = height * bo->strides[1] / 2;
- bo->offsets[0] = 0;
- bo->offsets[1] = height * bo->strides[0];
- break;
- default:
- bo->strides[0] = drv_stride_from_format(format, width, 0);
- bo->sizes[0] = height * bo->strides[0];
- bo->offsets[0] = 0;
+ size_t p, num_planes;
+ uint32_t offset = 0;
+
+ num_planes = drv_num_planes_from_format(format);
+ assert(num_planes);
+
+ for (p = 0; p < num_planes; p++) {
+ bo->strides[p] = drv_stride_from_format(format, width, p);
+ bo->sizes[p] = drv_size_from_format(format, bo->strides[p],
+ height, p);
+ bo->offsets[p] = offset;
+ offset += bo->sizes[p];
}
bo->total_size = bo->offsets[bo->num_planes - 1] +
return error;
}
-void *drv_dumb_bo_map(struct bo *bo)
+void *drv_dumb_bo_map(struct bo *bo, struct map_info *data, size_t plane)
{
int ret;
+ size_t i;
struct drm_mode_map_dumb map_dumb;
memset(&map_dumb, 0, sizeof(map_dumb));
- map_dumb.handle = bo->handles[0].u32;
+ map_dumb.handle = bo->handles[plane].u32;
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_dumb);
if (ret) {
return MAP_FAILED;
}
- return mmap(0, bo->total_size, PROT_READ | PROT_WRITE, MAP_SHARED,
+ for (i = 0; i < bo->num_planes; i++)
+ if (bo->handles[i].u32 == bo->handles[plane].u32)
+ data->length += bo->sizes[i];
+
+ return mmap(0, data->length, PROT_READ | PROT_WRITE, MAP_SHARED,
bo->drv->fd, map_dumb.offset);
}
(void *) (num - 1));
}
-uint32_t drv_num_buffers_per_bo(struct bo *bo)
+uint32_t drv_log_base2(uint32_t value)
{
- uint32_t count = 0;
- size_t plane, p;
+ int ret = 0;
- for (plane = 0; plane < bo->num_planes; plane++) {
- for (p = 0; p < plane; p++) {
- if (bo->handles[p].u32 == bo->handles[plane].u32)
- break;
- }
+ while (value >>= 1)
+ ++ret;
+
+ return ret;
+}
+
+/* Inserts a combination into list -- caller should have lock on driver. */
+void drv_insert_supported_combination(struct driver *drv, uint32_t format,
+ uint64_t usage, uint64_t modifier)
+{
+ struct combination_list_element *elem;
+
+ elem = calloc(1, sizeof(*elem));
+ elem->combination.format = format;
+ elem->combination.modifier = modifier;
+ elem->combination.usage = usage;
+ LIST_ADD(&elem->link, &drv->backend->combinations);
+}
+
+void drv_insert_combinations(struct driver *drv, struct supported_combination *combos,
+ uint32_t size)
+{
+ unsigned int i;
+
+ pthread_mutex_lock(&drv->driver_lock);
+
+ for (i = 0; i < size; i++)
+ drv_insert_supported_combination(drv, combos[i].format,
+ combos[i].usage,
+ combos[i].modifier);
+
+ pthread_mutex_unlock(&drv->driver_lock);
+}
+
+void drv_modify_supported_combination(struct driver *drv, uint32_t format,
+ uint64_t usage, uint64_t modifier)
+{
+ /*
+ * Attempts to add the specified usage to an existing {format, modifier}
+ * pair. If the pair is not present, a new combination is created.
+ */
+ int found = 0;
+
+ pthread_mutex_lock(&drv->driver_lock);
- if (p == plane)
- count++;
+ list_for_each_entry(struct combination_list_element,
+ elem, &drv->backend->combinations, link) {
+ if (elem->combination.format == format &&
+ elem->combination.modifier == modifier) {
+ elem->combination.usage |= usage;
+ found = 1;
+ }
}
- return count;
+
+ if (!found)
+ drv_insert_supported_combination(drv, format, usage, modifier);
+
+ pthread_mutex_unlock(&drv->driver_lock);
}
-uint32_t drv_log_base2(uint32_t value)
+int drv_add_kms_flags(struct driver *drv)
{
- int ret = 0;
+ int ret;
+ uint32_t i, j;
+ uint64_t flag, usage;
+ drmModePlanePtr plane;
+ drmModePropertyPtr prop;
+ drmModePlaneResPtr resources;
+ drmModeObjectPropertiesPtr props;
- while (value >>= 1)
- ++ret;
+ /*
+ * All current drivers can scanout XRGB8888/ARGB8888 as a primary plane.
+ * Some older kernel versions can only return overlay planes, so add the
+ * combination here. Note that the kernel disregards the alpha component
+ * of ARGB unless it's an overlay plane.
+ */
+ drv_modify_supported_combination(drv, DRM_FORMAT_XRGB8888,
+ BO_USE_SCANOUT, 0);
+ drv_modify_supported_combination(drv, DRM_FORMAT_ARGB8888,
+ BO_USE_SCANOUT, 0);
+ /*
+ * The ability to return universal planes is only complete on
+ * ChromeOS kernel versions >= v3.18. The SET_CLIENT_CAP ioctl
+ * therefore might return an error code, so don't check it. If it
+ * fails, it'll just return the plane list as overlay planes, which is
+ * fine in our case (our drivers already have cursor bits set).
+ * modetest in libdrm does the same thing.
+ */
+ drmSetClientCap(drv->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
+
+ resources = drmModeGetPlaneResources(drv->fd);
+ if (!resources)
+ goto err;
+
+ for (i = 0; i < resources->count_planes; i++) {
+
+ plane = drmModeGetPlane(drv->fd, resources->planes[i]);
+
+ if (!plane)
+ goto err;
+
+ props = drmModeObjectGetProperties(drv->fd, plane->plane_id,
+ DRM_MODE_OBJECT_PLANE);
+ if (!props)
+ goto err;
+
+ for (j = 0; j < props->count_props; j++) {
+
+ prop = drmModeGetProperty(drv->fd, props->props[j]);
+ if (prop) {
+ if (strcmp(prop->name, "type") == 0) {
+ flag = props->prop_values[j];
+ }
+ drmModeFreeProperty(prop);
+ }
+ }
+
+ switch (flag) {
+ case DRM_PLANE_TYPE_OVERLAY:
+ case DRM_PLANE_TYPE_PRIMARY:
+ usage = BO_USE_SCANOUT;
+ break;
+ case DRM_PLANE_TYPE_CURSOR:
+ usage = BO_USE_CURSOR;
+ break;
+ default:
+ assert(0);
+ }
+
+ for (j = 0; j < plane->count_formats; j++)
+ drv_modify_supported_combination(drv, plane->formats[j],
+ usage, 0);
+
+ drmModeFreeObjectProperties(props);
+ drmModeFreePlane(plane);
+
+ }
+
+ drmModeFreePlaneResources(resources);
+ return 0;
+
+err:
+ ret = -1;
return ret;
}
-
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