X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=helpers.c;h=326dddff0815ffe4128651f198406a189fe05bc5;hb=82d4e88590b4febd832c2184bcc2b1cd25493c42;hp=19ee64622575a028a7b7450f932a87fdb6b1e8af;hpb=721abfd9a63126da3ae33af0a038a9dbd9cc54f4;p=android-x86%2Fexternal-minigbm.git diff --git a/helpers.c b/helpers.c index 19ee646..326dddf 100644 --- a/helpers.c +++ b/helpers.c @@ -6,49 +6,107 @@ #include #include -#include #include #include #include #include +#include +#include #include -#include #include "drv_priv.h" #include "helpers.h" #include "util.h" -static uint32_t subsample_stride(uint32_t stride, 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) { - - 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) -{ - 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: case DRM_FORMAT_NV21: - return (plane == 0) ? 8 : 4; + return &biplanar_yuv_420_layout; + + case DRM_FORMAT_P010: + return &biplanar_yuv_p010_layout; case DRM_FORMAT_ABGR1555: case DRM_FORMAT_ABGR4444: @@ -74,11 +132,12 @@ static uint32_t bpp_from_format(uint32_t format, size_t plane) 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: @@ -97,17 +156,71 @@ static uint32_t bpp_from_format(uint32_t format, size_t plane) 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 && + modifier != DRM_FORMAT_MOD_LINEAR) + return drv->backend->num_planes_from_modifier(drv, format, modifier); + + return planes; +} + +uint32_t drv_height_from_format(uint32_t format, uint32_t height, size_t plane) +{ + 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_bo_get_stride_in_pixels(struct bo *bo) +uint32_t drv_bytes_per_pixel_from_format(uint32_t format, 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 layout->bytes_per_pixel[plane]; } /* @@ -115,7 +228,11 @@ uint32_t drv_bo_get_stride_in_pixels(struct bo *bo) */ 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 @@ -127,6 +244,25 @@ uint32_t drv_stride_from_format(uint32_t format, uint32_t width, size_t plane) 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 @@ -134,78 +270,124 @@ uint32_t drv_stride_from_format(uint32_t format, uint32_t width, size_t plane) */ 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 ): + * - 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; @@ -217,7 +399,7 @@ int drv_gem_bo_destroy(struct bo *bo) 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; @@ -230,9 +412,9 @@ int drv_gem_bo_destroy(struct bo *bo) 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; } } @@ -245,15 +427,14 @@ int drv_prime_bo_import(struct bo *bo, struct drv_import_fd_data *data) 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, @@ -261,24 +442,19 @@ int drv_prime_bo_import(struct bo *bo, struct drv_import_fd_data *data) * 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; @@ -289,18 +465,67 @@ void *drv_dumb_bo_map(struct bo *bo, struct map_info *data, size_t plane) 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; @@ -331,207 +556,94 @@ void drv_decrement_reference_count(struct driver *drv, struct bo *bo, size_t pla drmHashInsert(drv->buffer_table, bo->handles[plane].u32, (void *)(num - 1)); } -uint32_t drv_log_base2(uint32_t value) +void drv_add_combination(struct driver *drv, const uint32_t format, + struct format_metadata *metadata, uint64_t use_flags) { - int ret = 0; - - while (value >>= 1) - ++ret; + struct combination combo = { .format = format, + .metadata = *metadata, + .use_flags = use_flags }; - return ret; -} - -int drv_add_combination(struct driver *drv, uint32_t format, struct format_metadata *metadata, - uint64_t usage) -{ - 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; - } - - 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; - } -} - -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); + combo->use_flags |= use_flags; } - - 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; +} + +/* + * Map internal fourcc codes back to standard fourcc codes. + */ +uint32_t drv_get_standard_fourcc(uint32_t fourcc_internal) +{ + return (fourcc_internal == DRM_FORMAT_YVU420_ANDROID) ? DRM_FORMAT_YVU420 : fourcc_internal; }