#include <assert.h>
#include <errno.h>
-#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
#include <xf86drm.h>
-#include <xf86drmMode.h>
#include "drv_priv.h"
#include "helpers.h"
#include "util.h"
-static uint32_t subsample_stride(uint32_t stride, uint32_t format, size_t plane)
-{
-
- if (plane != 0) {
- switch (format) {
- case DRM_FORMAT_YVU420:
- case DRM_FORMAT_YVU420_ANDROID:
- stride = DIV_ROUND_UP(stride, 2);
- break;
- }
- }
-
- return stride;
-}
-
-static uint32_t bpp_from_format(uint32_t format, size_t plane)
+struct planar_layout {
+ size_t num_planes;
+ int horizontal_subsampling[DRV_MAX_PLANES];
+ int vertical_subsampling[DRV_MAX_PLANES];
+ int bytes_per_pixel[DRV_MAX_PLANES];
+};
+
+// clang-format off
+
+static const struct planar_layout packed_1bpp_layout = {
+ .num_planes = 1,
+ .horizontal_subsampling = { 1 },
+ .vertical_subsampling = { 1 },
+ .bytes_per_pixel = { 1 }
+};
+
+static const struct planar_layout packed_2bpp_layout = {
+ .num_planes = 1,
+ .horizontal_subsampling = { 1 },
+ .vertical_subsampling = { 1 },
+ .bytes_per_pixel = { 2 }
+};
+
+static const struct planar_layout packed_3bpp_layout = {
+ .num_planes = 1,
+ .horizontal_subsampling = { 1 },
+ .vertical_subsampling = { 1 },
+ .bytes_per_pixel = { 3 }
+};
+
+static const struct planar_layout packed_4bpp_layout = {
+ .num_planes = 1,
+ .horizontal_subsampling = { 1 },
+ .vertical_subsampling = { 1 },
+ .bytes_per_pixel = { 4 }
+};
+
+static const struct planar_layout packed_8bpp_layout = {
+ .num_planes = 1,
+ .horizontal_subsampling = { 1 },
+ .vertical_subsampling = { 1 },
+ .bytes_per_pixel = { 8 }
+};
+
+static const struct planar_layout biplanar_yuv_420_layout = {
+ .num_planes = 2,
+ .horizontal_subsampling = { 1, 2 },
+ .vertical_subsampling = { 1, 2 },
+ .bytes_per_pixel = { 1, 2 }
+};
+
+static const struct planar_layout triplanar_yuv_420_layout = {
+ .num_planes = 3,
+ .horizontal_subsampling = { 1, 2, 2 },
+ .vertical_subsampling = { 1, 2, 2 },
+ .bytes_per_pixel = { 1, 1, 1 }
+};
+
+static const struct planar_layout biplanar_yuv_p010_layout = {
+ .num_planes = 2,
+ .horizontal_subsampling = { 1, 2 },
+ .vertical_subsampling = { 1, 2 },
+ .bytes_per_pixel = { 2, 4 }
+};
+
+// clang-format on
+
+static const struct planar_layout *layout_from_format(uint32_t format)
{
- assert(plane < drv_num_planes_from_format(format));
-
switch (format) {
case DRM_FORMAT_BGR233:
case DRM_FORMAT_C8:
case DRM_FORMAT_R8:
case DRM_FORMAT_RGB332:
+ return &packed_1bpp_layout;
+
+ case DRM_FORMAT_R16:
+ return &packed_2bpp_layout;
+
case DRM_FORMAT_YVU420:
case DRM_FORMAT_YVU420_ANDROID:
- return 8;
+ return &triplanar_yuv_420_layout;
case DRM_FORMAT_NV12:
- return (plane == 0) ? 8 : 4;
+ case DRM_FORMAT_NV21:
+ return &biplanar_yuv_420_layout;
+
+ case DRM_FORMAT_P010:
+ return &biplanar_yuv_p010_layout;
case DRM_FORMAT_ABGR1555:
case DRM_FORMAT_ABGR4444:
case DRM_FORMAT_XRGB4444:
case DRM_FORMAT_YUYV:
case DRM_FORMAT_YVYU:
- return 16;
+ case DRM_FORMAT_MTISP_SXYZW10:
+ return &packed_2bpp_layout;
case DRM_FORMAT_BGR888:
case DRM_FORMAT_RGB888:
- return 24;
+ return &packed_3bpp_layout;
case DRM_FORMAT_ABGR2101010:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_XRGB2101010:
case DRM_FORMAT_XRGB8888:
- return 32;
+ return &packed_4bpp_layout;
+
+ case DRM_FORMAT_ABGR16161616F:
+ return &packed_8bpp_layout;
+
+ default:
+ drv_log("UNKNOWN FORMAT %d\n", format);
+ return NULL;
}
+}
- fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
- return 0;
+size_t drv_num_planes_from_format(uint32_t format)
+{
+ const struct planar_layout *layout = layout_from_format(format);
+
+ /*
+ * drv_bo_new calls this function early to query number of planes and
+ * considers 0 planes to mean unknown format, so we have to support
+ * that. All other layout_from_format() queries can assume that the
+ * format is supported and that the return value is non-NULL.
+ */
+
+ return layout ? layout->num_planes : 0;
+}
+
+size_t drv_num_planes_from_modifier(struct driver *drv, uint32_t format, uint64_t modifier)
+{
+ size_t planes = drv_num_planes_from_format(format);
+
+ /* Disallow unsupported formats. */
+ if (!planes)
+ return 0;
+
+ if (drv->backend->num_planes_from_modifier && modifier != DRM_FORMAT_MOD_INVALID)
+ return drv->backend->num_planes_from_modifier(drv, format, modifier);
+
+ return planes;
}
-uint32_t drv_bo_get_stride_in_pixels(struct bo *bo)
+uint32_t drv_height_from_format(uint32_t format, uint32_t height, size_t plane)
{
- uint32_t bytes_per_pixel = DIV_ROUND_UP(bpp_from_format(bo->format, 0), 8);
- return DIV_ROUND_UP(bo->strides[0], bytes_per_pixel);
+ const struct planar_layout *layout = layout_from_format(format);
+
+ assert(plane < layout->num_planes);
+
+ return DIV_ROUND_UP(height, layout->vertical_subsampling[plane]);
+}
+
+uint32_t drv_vertical_subsampling_from_format(uint32_t format, size_t plane)
+{
+ const struct planar_layout *layout = layout_from_format(format);
+
+ assert(plane < layout->num_planes);
+
+ return layout->vertical_subsampling[plane];
+}
+
+uint32_t drv_bytes_per_pixel_from_format(uint32_t format, size_t plane)
+{
+ const struct planar_layout *layout = layout_from_format(format);
+
+ assert(plane < layout->num_planes);
+
+ return layout->bytes_per_pixel[plane];
}
/*
*/
uint32_t drv_stride_from_format(uint32_t format, uint32_t width, size_t plane)
{
- uint32_t stride = DIV_ROUND_UP(width * bpp_from_format(format, plane), 8);
+ const struct planar_layout *layout = layout_from_format(format);
+ assert(plane < layout->num_planes);
+
+ uint32_t plane_width = DIV_ROUND_UP(width, layout->horizontal_subsampling[plane]);
+ uint32_t stride = plane_width * layout->bytes_per_pixel[plane];
/*
* The stride of Android YV12 buffers is required to be aligned to 16 bytes
return stride;
}
+uint32_t drv_size_from_format(uint32_t format, uint32_t stride, uint32_t height, size_t plane)
+{
+ return stride * drv_height_from_format(format, height, plane);
+}
+
+static uint32_t subsample_stride(uint32_t stride, uint32_t format, size_t plane)
+{
+ if (plane != 0) {
+ switch (format) {
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_YVU420_ANDROID:
+ stride = DIV_ROUND_UP(stride, 2);
+ break;
+ }
+ }
+
+ return stride;
+}
+
/*
* This function fills in the buffer object given the driver aligned stride of
* the first plane, height and a format. This function assumes there is just
*/
int drv_bo_from_format(struct bo *bo, uint32_t stride, uint32_t aligned_height, uint32_t format)
{
+ uint32_t padding[DRV_MAX_PLANES] = { 0 };
+ return drv_bo_from_format_and_padding(bo, stride, aligned_height, format, padding);
+}
+int drv_bo_from_format_and_padding(struct bo *bo, uint32_t stride, uint32_t aligned_height,
+ uint32_t format, uint32_t padding[DRV_MAX_PLANES])
+{
size_t p, num_planes;
uint32_t offset = 0;
num_planes = drv_num_planes_from_format(format);
assert(num_planes);
- bo->total_size = 0;
+
+ /*
+ * HAL_PIXEL_FORMAT_YV12 requires that (see <system/graphics.h>):
+ * - the aligned height is same as the buffer's height.
+ * - the chroma stride is 16 bytes aligned, i.e., the luma's strides
+ * is 32 bytes aligned.
+ */
+ if (format == DRM_FORMAT_YVU420_ANDROID) {
+ assert(aligned_height == bo->meta.height);
+ assert(stride == ALIGN(stride, 32));
+ }
for (p = 0; p < num_planes; p++) {
- bo->strides[p] = subsample_stride(stride, format, p);
- bo->sizes[p] = drv_size_from_format(format, bo->strides[p], bo->height, p);
- bo->offsets[p] = offset;
- offset += bo->sizes[p];
- bo->total_size += drv_size_from_format(format, bo->strides[p], aligned_height, p);
+ bo->meta.strides[p] = subsample_stride(stride, format, p);
+ bo->meta.sizes[p] =
+ drv_size_from_format(format, bo->meta.strides[p], aligned_height, p) +
+ padding[p];
+ bo->meta.offsets[p] = offset;
+ offset += bo->meta.sizes[p];
}
+ bo->meta.total_size = offset;
return 0;
}
-int drv_dumb_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
- uint32_t flags)
+int drv_dumb_bo_create_ex(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
+ uint64_t use_flags, uint64_t quirks)
{
int ret;
size_t plane;
uint32_t aligned_width, aligned_height;
- struct drm_mode_create_dumb create_dumb;
+ struct drm_mode_create_dumb create_dumb = { 0 };
aligned_width = width;
aligned_height = height;
- if (format == DRM_FORMAT_YVU420_ANDROID) {
- /*
- * Align width to 32 pixels, so chroma strides are 16 bytes as
- * Android requires.
- */
+ switch (format) {
+ case DRM_FORMAT_R16:
+ /* HAL_PIXEL_FORMAT_Y16 requires that the buffer's width be 16 pixel
+ * aligned. See hardware/interfaces/graphics/common/1.0/types.hal. */
+ aligned_width = ALIGN(width, 16);
+ break;
+ case DRM_FORMAT_YVU420_ANDROID:
+ /* HAL_PIXEL_FORMAT_YV12 requires that the buffer's height not
+ * be aligned. Update 'height' so that drv_bo_from_format below
+ * uses the non-aligned height. */
+ height = bo->meta.height;
+
+ /* Align width to 32 pixels, so chroma strides are 16 bytes as
+ * Android requires. */
aligned_width = ALIGN(width, 32);
+
+ /* Adjust the height to include room for chroma planes. */
aligned_height = 3 * DIV_ROUND_UP(height, 2);
+ break;
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV21:
+ /* Adjust the height to include room for chroma planes */
+ aligned_height = 3 * DIV_ROUND_UP(height, 2);
+ break;
+ default:
+ break;
}
- memset(&create_dumb, 0, sizeof(create_dumb));
- create_dumb.height = aligned_height;
+ if (quirks & BO_QUIRK_DUMB32BPP) {
+ aligned_width =
+ DIV_ROUND_UP(aligned_width * layout_from_format(format)->bytes_per_pixel[0], 4);
+ create_dumb.bpp = 32;
+ } else {
+ create_dumb.bpp = layout_from_format(format)->bytes_per_pixel[0] * 8;
+ }
create_dumb.width = aligned_width;
- create_dumb.bpp = bpp_from_format(format, 0);
+ create_dumb.height = aligned_height;
create_dumb.flags = 0;
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_dumb);
if (ret) {
- fprintf(stderr, "drv: DRM_IOCTL_MODE_CREATE_DUMB failed\n");
- return ret;
+ drv_log("DRM_IOCTL_MODE_CREATE_DUMB failed (%d, %d)\n", bo->drv->fd, errno);
+ return -errno;
}
drv_bo_from_format(bo, create_dumb.pitch, height, format);
- for (plane = 0; plane < bo->num_planes; plane++)
+ for (plane = 0; plane < bo->meta.num_planes; plane++)
bo->handles[plane].u32 = create_dumb.handle;
- bo->total_size = create_dumb.size;
+ bo->meta.total_size = create_dumb.size;
return 0;
}
+int drv_dumb_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
+ uint64_t use_flags)
+{
+ return drv_dumb_bo_create_ex(bo, width, height, format, use_flags, BO_QUIRK_NONE);
+}
+
int drv_dumb_bo_destroy(struct bo *bo)
{
- struct drm_mode_destroy_dumb destroy_dumb;
int ret;
+ struct drm_mode_destroy_dumb destroy_dumb = { 0 };
- memset(&destroy_dumb, 0, sizeof(destroy_dumb));
destroy_dumb.handle = bo->handles[0].u32;
-
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_dumb);
if (ret) {
- fprintf(stderr, "drv: DRM_IOCTL_MODE_DESTROY_DUMB failed (handle=%x)\n",
- bo->handles[0].u32);
- return ret;
+ drv_log("DRM_IOCTL_MODE_DESTROY_DUMB failed (handle=%x)\n", bo->handles[0].u32);
+ return -errno;
}
return 0;
int ret, error = 0;
size_t plane, i;
- for (plane = 0; plane < bo->num_planes; plane++) {
+ for (plane = 0; plane < bo->meta.num_planes; plane++) {
for (i = 0; i < plane; i++)
if (bo->handles[i].u32 == bo->handles[plane].u32)
break;
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
if (ret) {
- fprintf(stderr, "drv: DRM_IOCTL_GEM_CLOSE failed (handle=%x) error %d\n",
+ drv_log("DRM_IOCTL_GEM_CLOSE failed (handle=%x) error %d\n",
bo->handles[plane].u32, ret);
- error = ret;
+ error = -errno;
}
}
size_t plane;
struct drm_prime_handle prime_handle;
- for (plane = 0; plane < bo->num_planes; plane++) {
+ for (plane = 0; plane < bo->meta.num_planes; plane++) {
memset(&prime_handle, 0, sizeof(prime_handle));
prime_handle.fd = data->fds[plane];
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &prime_handle);
if (ret) {
- fprintf(stderr, "drv: DRM_IOCTL_PRIME_FD_TO_HANDLE failed (fd=%u)\n",
- prime_handle.fd);
+ drv_log("DRM_IOCTL_PRIME_FD_TO_HANDLE failed (fd=%u)\n", prime_handle.fd);
/*
* Need to call GEM close on planes that were opened,
* plane that failed, so GEM close will be called on
* planes before that plane.
*/
- bo->num_planes = plane;
+ bo->meta.num_planes = plane;
drv_gem_bo_destroy(bo);
- return ret;
+ return -errno;
}
bo->handles[plane].u32 = prime_handle.handle;
}
-
- for (plane = 0; plane < bo->num_planes; plane++) {
- pthread_mutex_lock(&bo->drv->driver_lock);
- drv_increment_reference_count(bo->drv, bo, plane);
- pthread_mutex_unlock(&bo->drv->driver_lock);
- }
+ bo->meta.tiling = data->tiling;
return 0;
}
-void *drv_dumb_bo_map(struct bo *bo, struct map_info *data, size_t plane)
+void *drv_dumb_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags)
{
int ret;
size_t i;
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_dumb);
if (ret) {
- fprintf(stderr, "drv: DRM_IOCTL_MODE_MAP_DUMB failed \n");
+ drv_log("DRM_IOCTL_MODE_MAP_DUMB failed\n");
return MAP_FAILED;
}
- for (i = 0; i < bo->num_planes; i++)
+ for (i = 0; i < bo->meta.num_planes; i++)
if (bo->handles[i].u32 == bo->handles[plane].u32)
- data->length += bo->sizes[i];
+ vma->length += bo->meta.sizes[i];
- return mmap(0, data->length, PROT_READ | PROT_WRITE, MAP_SHARED, bo->drv->fd,
+ return mmap(0, vma->length, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd,
map_dumb.offset);
}
+int drv_bo_munmap(struct bo *bo, struct vma *vma)
+{
+ return munmap(vma->addr, vma->length);
+}
+
+int drv_mapping_destroy(struct bo *bo)
+{
+ int ret;
+ size_t plane;
+ struct mapping *mapping;
+ uint32_t idx;
+
+ /*
+ * This function is called right before the buffer is destroyed. It will free any mappings
+ * associated with the buffer.
+ */
+
+ idx = 0;
+ for (plane = 0; plane < bo->meta.num_planes; plane++) {
+ while (idx < drv_array_size(bo->drv->mappings)) {
+ mapping = (struct mapping *)drv_array_at_idx(bo->drv->mappings, idx);
+ if (mapping->vma->handle != bo->handles[plane].u32) {
+ idx++;
+ continue;
+ }
+
+ if (!--mapping->vma->refcount) {
+ ret = bo->drv->backend->bo_unmap(bo, mapping->vma);
+ if (ret) {
+ drv_log("munmap failed\n");
+ return ret;
+ }
+
+ free(mapping->vma);
+ }
+
+ /* This shrinks and shifts the array, so don't increment idx. */
+ drv_array_remove(bo->drv->mappings, idx);
+ }
+ }
+
+ return 0;
+}
+
+int drv_get_prot(uint32_t map_flags)
+{
+ return (BO_MAP_WRITE & map_flags) ? PROT_WRITE | PROT_READ : PROT_READ;
+}
+
uintptr_t drv_get_reference_count(struct driver *drv, struct bo *bo, size_t plane)
{
void *count;
drmHashInsert(drv->buffer_table, bo->handles[plane].u32, (void *)(num - 1));
}
-uint32_t drv_log_base2(uint32_t value)
-{
- int ret = 0;
-
- while (value >>= 1)
- ++ret;
-
- return ret;
-}
-
-int drv_add_combination(struct driver *drv, uint32_t format, struct format_metadata *metadata,
- uint64_t usage)
+void drv_add_combination(struct driver *drv, const uint32_t format,
+ struct format_metadata *metadata, uint64_t use_flags)
{
- struct combinations *combos = &drv->backend->combos;
- if (combos->size >= combos->allocations) {
- struct combination *new_data;
- combos->allocations *= 2;
- new_data = realloc(combos->data, combos->allocations * sizeof(*combos->data));
- if (!new_data)
- return -ENOMEM;
-
- combos->data = new_data;
- }
+ struct combination combo = { .format = format,
+ .metadata = *metadata,
+ .use_flags = use_flags };
- combos->data[combos->size].format = format;
- combos->data[combos->size].metadata.priority = metadata->priority;
- combos->data[combos->size].metadata.tiling = metadata->tiling;
- combos->data[combos->size].metadata.modifier = metadata->modifier;
- combos->data[combos->size].usage = usage;
- combos->size++;
- return 0;
+ drv_array_append(drv->combos, &combo);
}
-int drv_add_combinations(struct driver *drv, const uint32_t *formats, uint32_t num_formats,
- struct format_metadata *metadata, uint64_t usage)
+void drv_add_combinations(struct driver *drv, const uint32_t *formats, uint32_t num_formats,
+ struct format_metadata *metadata, uint64_t use_flags)
{
- int ret;
uint32_t i;
+
for (i = 0; i < num_formats; i++) {
- ret = drv_add_combination(drv, formats[i], metadata, usage);
- if (ret)
- return ret;
- }
+ struct combination combo = { .format = formats[i],
+ .metadata = *metadata,
+ .use_flags = use_flags };
- return 0;
+ drv_array_append(drv->combos, &combo);
+ }
}
void drv_modify_combination(struct driver *drv, uint32_t format, struct format_metadata *metadata,
- uint64_t usage)
+ uint64_t use_flags)
{
uint32_t i;
struct combination *combo;
- /* Attempts to add the specified usage to an existing combination. */
- for (i = 0; i < drv->backend->combos.size; i++) {
- combo = &drv->backend->combos.data[i];
+ /* Attempts to add the specified flags to an existing combination. */
+ for (i = 0; i < drv_array_size(drv->combos); i++) {
+ combo = (struct combination *)drv_array_at_idx(drv->combos, i);
if (combo->format == format && combo->metadata.tiling == metadata->tiling &&
combo->metadata.modifier == metadata->modifier)
- combo->usage |= usage;
+ combo->use_flags |= use_flags;
}
}
-struct kms_item *drv_query_kms(struct driver *drv, uint32_t *num_items)
-{
- uint64_t flag, usage;
- struct kms_item *items;
- uint32_t i, j, k, allocations, item_size;
-
- drmModePlanePtr plane;
- drmModePropertyPtr prop;
- drmModePlaneResPtr resources;
- drmModeObjectPropertiesPtr props;
-
- /* Start with a power of 2 number of allocations. */
- allocations = 2;
- item_size = 0;
- items = calloc(allocations, sizeof(*items));
- if (!items)
- goto out;
-
- /*
- * 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 out;
-
- for (i = 0; i < resources->count_planes; i++) {
- plane = drmModeGetPlane(drv->fd, resources->planes[i]);
- if (!plane)
- goto out;
-
- props = drmModeObjectGetProperties(drv->fd, plane->plane_id, DRM_MODE_OBJECT_PLANE);
- if (!props)
- goto out;
-
- 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++) {
- bool found = false;
- for (k = 0; k < item_size; k++) {
- if (items[k].format == plane->formats[j] &&
- items[k].modifier == DRM_FORMAT_MOD_NONE) {
- items[k].usage |= usage;
- found = true;
- break;
- }
- }
-
- if (!found && item_size >= allocations) {
- struct kms_item *new_data = NULL;
- allocations *= 2;
- new_data = realloc(items, allocations * sizeof(*items));
- if (!new_data) {
- item_size = 0;
- goto out;
- }
-
- items = new_data;
- }
-
- if (!found) {
- items[item_size].format = plane->formats[j];
- items[item_size].modifier = DRM_FORMAT_MOD_NONE;
- items[item_size].usage = usage;
- item_size++;
- }
- }
-
- drmModeFreeObjectProperties(props);
- drmModeFreePlane(plane);
- }
-
- drmModeFreePlaneResources(resources);
-out:
- if (items && item_size == 0) {
- free(items);
- items = NULL;
- }
-
- *num_items = item_size;
- return items;
-}
-
int drv_modify_linear_combinations(struct driver *drv)
{
- uint32_t i, j, num_items;
- struct kms_item *items;
- struct combination *combo;
-
/*
* All current drivers can scanout linear XRGB8888/ARGB8888 as a primary
- * plane and as a cursor. Some drivers don't support
- * drmModeGetPlaneResources, so add the combination here. Note that the
- * kernel disregards the alpha component of ARGB unless it's an overlay
- * plane.
+ * plane and as a cursor.
*/
drv_modify_combination(drv, DRM_FORMAT_XRGB8888, &LINEAR_METADATA,
BO_USE_CURSOR | BO_USE_SCANOUT);
drv_modify_combination(drv, DRM_FORMAT_ARGB8888, &LINEAR_METADATA,
BO_USE_CURSOR | BO_USE_SCANOUT);
+ return 0;
+}
- items = drv_query_kms(drv, &num_items);
- if (!items || !num_items)
- return 0;
+/*
+ * Pick the best modifier from modifiers, according to the ordering
+ * given by modifier_order.
+ */
+uint64_t drv_pick_modifier(const uint64_t *modifiers, uint32_t count,
+ const uint64_t *modifier_order, uint32_t order_count)
+{
+ uint32_t i, j;
- for (i = 0; i < num_items; i++) {
- for (j = 0; j < drv->backend->combos.size; j++) {
- combo = &drv->backend->combos.data[j];
- if (items[i].format == combo->format)
- combo->usage |= BO_USE_SCANOUT;
+ for (i = 0; i < order_count; i++) {
+ for (j = 0; j < count; j++) {
+ if (modifiers[j] == modifier_order[i]) {
+ return modifiers[j];
+ }
}
}
- free(items);
- return 0;
+ return DRM_FORMAT_MOD_LINEAR;
+}
+
+/*
+ * Search a list of modifiers to see if a given modifier is present
+ */
+bool drv_has_modifier(const uint64_t *list, uint32_t count, uint64_t modifier)
+{
+ uint32_t i;
+ for (i = 0; i < count; i++)
+ if (list[i] == modifier)
+ return true;
+
+ return false;
}
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