X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=helpers.c;h=6c26e54795d86f1ffc8be389e4e0108a3f2be924;hb=23e006a90b51589a7515a66777477398ee20c576;hp=a1d97dbf8fa221d95f227dae90baca16c3c7c127;hpb=1a31e609770088ad0e5abb49678174e4c6393d34;p=android-x86%2Fexternal-minigbm.git diff --git a/helpers.c b/helpers.c index a1d97db..6c26e54 100644 --- a/helpers.c +++ b/helpers.c @@ -1,145 +1,102 @@ /* - * Copyright (c) 2014 The Chromium OS Authors. All rights reserved. + * Copyright 2014 The Chromium OS Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include +#include #include #include #include #include #include #include +#include #include "drv_priv.h" #include "helpers.h" #include "util.h" -size_t drv_num_planes_from_format(uint32_t format) +static uint32_t subsample_stride(uint32_t stride, uint32_t format, size_t plane) { - 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; + + if (plane != 0) { + switch (format) { + case DRM_FORMAT_YVU420: + case DRM_FORMAT_YVU420_ANDROID: + stride = DIV_ROUND_UP(stride, 2); + break; + } } - fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format); - return 0; + return stride; } -int drv_bpp_from_format(uint32_t format, size_t plane) +static uint32_t 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: + case DRM_FORMAT_YVU420_ANDROID: return 8; - case DRV_FORMAT_NV12: + case DRM_FORMAT_NV12: + case DRM_FORMAT_NV21: 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: + + 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; } @@ -147,82 +104,109 @@ int drv_bpp_from_format(uint32_t format, size_t plane) return 0; } +uint32_t drv_bo_get_stride_in_pixels(struct bo *bo) +{ + 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); +} + /* * 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) +uint32_t 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); + uint32_t stride = DIV_ROUND_UP(width * bpp_from_format(format, plane), 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. + * The stride of Android YV12 buffers is required to be aligned to 16 bytes + * (see ). */ - if (plane != 0) { - switch (format) { - case DRV_FORMAT_YVU420: - stride = stride / 2; - } - } + if (format == DRM_FORMAT_YVU420_ANDROID) + stride = (plane == 0) ? ALIGN(stride, 32) : ALIGN(stride, 16); 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 drv_size_from_format(uint32_t format, uint32_t stride, uint32_t height, size_t plane) { + assert(plane < drv_num_planes_from_format(format)); + uint32_t vertical_subsampling; 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]; + case DRM_FORMAT_NV12: + case DRM_FORMAT_YVU420: + case DRM_FORMAT_YVU420_ANDROID: + vertical_subsampling = (plane == 0) ? 1 : 2; break; default: - bo->strides[0] = drv_stride_from_format(format, width, 0); - bo->sizes[0] = height * bo->strides[0]; - bo->offsets[0] = 0; + vertical_subsampling = 1; } - bo->total_size = bo->offsets[bo->num_planes - 1] + - bo->sizes[bo->num_planes - 1]; + return stride * DIV_ROUND_UP(height, vertical_subsampling); +} + +/* + * 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 + * one kernel buffer per buffer object. + */ +int drv_bo_from_format(struct bo *bo, uint32_t stride, uint32_t aligned_height, uint32_t format) +{ + + size_t p, num_planes; + uint32_t offset = 0; + + num_planes = drv_num_planes_from_format(format); + assert(num_planes); + + /* + * 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->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], aligned_height, p); + bo->offsets[p] = offset; + offset += bo->sizes[p]; + } + + bo->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(struct bo *bo, uint32_t width, uint32_t height, uint32_t format, + uint64_t use_flags) { - struct drm_mode_create_dumb create_dumb; int ret; + size_t plane; + uint32_t aligned_width, aligned_height; + struct drm_mode_create_dumb create_dumb; + + 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. + */ + aligned_width = ALIGN(width, 32); + } - /* Only single-plane formats are supported */ - assert(drv_num_planes_from_format(format) == 1); + if (format == DRM_FORMAT_YVU420_ANDROID || format == DRM_FORMAT_YVU420) { + aligned_height = 3 * DIV_ROUND_UP(height, 2); + } memset(&create_dumb, 0, sizeof(create_dumb)); - create_dumb.height = height; - create_dumb.width = width; - create_dumb.bpp = drv_bpp_from_format(format, 0); + create_dumb.height = aligned_height; + create_dumb.width = aligned_width; + create_dumb.bpp = bpp_from_format(format, 0); create_dumb.flags = 0; ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_dumb); @@ -231,11 +215,12 @@ int drv_dumb_bo_create(struct bo *bo, uint32_t width, uint32_t height, return ret; } - bo->handles[0].u32 = create_dumb.handle; - bo->offsets[0] = 0; - bo->total_size = bo->sizes[0] = create_dumb.size; - bo->strides[0] = create_dumb.pitch; + drv_bo_from_format(bo, create_dumb.pitch, height, format); + for (plane = 0; plane < bo->num_planes; plane++) + bo->handles[plane].u32 = create_dumb.handle; + + bo->total_size = create_dumb.size; return 0; } @@ -249,8 +234,8 @@ int drv_dumb_bo_destroy(struct bo *bo) 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); + fprintf(stderr, "drv: DRM_IOCTL_MODE_DESTROY_DUMB failed (handle=%x)\n", + bo->handles[0].u32); return ret; } @@ -276,9 +261,8 @@ 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", - bo->handles[plane].u32, ret); + fprintf(stderr, "drv: DRM_IOCTL_GEM_CLOSE failed (handle=%x) error %d\n", + bo->handles[plane].u32, ret); error = ret; } } @@ -286,7 +270,46 @@ int drv_gem_bo_destroy(struct bo *bo) return error; } -void *drv_dumb_bo_map(struct bo *bo, struct map_info *data, size_t plane) +int drv_prime_bo_import(struct bo *bo, struct drv_import_fd_data *data) +{ + int ret; + size_t plane; + struct drm_prime_handle prime_handle; + + for (plane = 0; plane < bo->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); + + /* + * Need to call GEM close on planes that were opened, + * if any. Adjust the num_planes variable to be the + * plane that failed, so GEM close will be called on + * planes before that plane. + */ + bo->num_planes = plane; + drv_gem_bo_destroy(bo); + return ret; + } + + 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); + } + + return 0; +} + +void *drv_dumb_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags) { int ret; size_t i; @@ -303,72 +326,277 @@ void *drv_dumb_bo_map(struct bo *bo, struct map_info *data, size_t plane) for (i = 0; i < bo->num_planes; i++) if (bo->handles[i].u32 == bo->handles[plane].u32) - data->length += bo->sizes[i]; + vma->length += bo->sizes[i]; - return mmap(0, data->length, PROT_READ | PROT_WRITE, MAP_SHARED, - bo->drv->fd, map_dumb.offset); + return mmap(0, vma->length, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd, + map_dumb.offset); } -uintptr_t drv_get_reference_count(struct driver *drv, struct bo *bo, - size_t plane) +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->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) { + fprintf(stderr, "drv: munmap failed"); + 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; uintptr_t num = 0; if (!drmHashLookup(drv->buffer_table, bo->handles[plane].u32, &count)) - num = (uintptr_t) (count); + num = (uintptr_t)(count); return num; } -void drv_increment_reference_count(struct driver *drv, struct bo *bo, - size_t plane) +void drv_increment_reference_count(struct driver *drv, struct bo *bo, size_t plane) { uintptr_t num = drv_get_reference_count(drv, bo, plane); /* If a value isn't in the table, drmHashDelete is a no-op */ drmHashDelete(drv->buffer_table, bo->handles[plane].u32); - drmHashInsert(drv->buffer_table, bo->handles[plane].u32, - (void *) (num + 1)); + drmHashInsert(drv->buffer_table, bo->handles[plane].u32, (void *)(num + 1)); } -void drv_decrement_reference_count(struct driver *drv, struct bo *bo, - size_t plane) +void drv_decrement_reference_count(struct driver *drv, struct bo *bo, size_t plane) { uintptr_t num = drv_get_reference_count(drv, bo, plane); drmHashDelete(drv->buffer_table, bo->handles[plane].u32); if (num > 0) - drmHashInsert(drv->buffer_table, bo->handles[plane].u32, - (void *) (num - 1)); + drmHashInsert(drv->buffer_table, bo->handles[plane].u32, (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; +} + +void drv_add_combinations(struct driver *drv, const uint32_t *formats, uint32_t num_formats, + struct format_metadata *metadata, uint64_t use_flags) +{ + uint32_t i; + + for (i = 0; i < num_formats; i++) { + struct combination combo = { .format = formats[i], + .metadata = *metadata, + .use_flags = use_flags }; + + drv_array_append(drv->combos, &combo); + } +} + +void drv_modify_combination(struct driver *drv, uint32_t format, struct format_metadata *metadata, + uint64_t use_flags) +{ + uint32_t i; + struct combination *combo; + /* 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->use_flags |= use_flags; + } +} + +struct drv_array *drv_query_kms(struct driver *drv) +{ + struct drv_array *kms_items; + uint64_t plane_type, use_flag; + uint32_t i, j, k; + + drmModePlanePtr plane; + drmModePropertyPtr prop; + drmModePlaneResPtr resources; + drmModeObjectPropertiesPtr props; + + kms_items = drv_array_init(sizeof(struct kms_item)); + if (!kms_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) { + plane_type = props->prop_values[j]; + } + + drmModeFreeProperty(prop); + } + } + + switch (plane_type) { + case DRM_PLANE_TYPE_OVERLAY: + case DRM_PLANE_TYPE_PRIMARY: + use_flag = BO_USE_SCANOUT; + break; + case DRM_PLANE_TYPE_CURSOR: + use_flag = BO_USE_CURSOR; + break; + default: + assert(0); + } + + for (j = 0; j < plane->count_formats; j++) { + bool found = false; + for (k = 0; k < drv_array_size(kms_items); k++) { + struct kms_item *item = drv_array_at_idx(kms_items, k); + if (item->format == plane->formats[j] && + item->modifier == DRM_FORMAT_MOD_LINEAR) { + item->use_flags |= use_flag; + found = true; + break; + } + } + + if (!found) { + struct kms_item item = { .format = plane->formats[j], + .modifier = DRM_FORMAT_MOD_LINEAR, + .use_flags = use_flag }; + + drv_array_append(kms_items, &item); + } } - if (p == plane) - count++; + drmModeFreeObjectProperties(props); + drmModeFreePlane(plane); + } + + drmModeFreePlaneResources(resources); +out: + if (kms_items && !drv_array_size(kms_items)) { + drv_array_destroy(kms_items); + return NULL; } - return count; + return kms_items; } -uint32_t drv_log_base2(uint32_t value) +int drv_modify_linear_combinations(struct driver *drv) { - int ret = 0; + uint32_t i, j; + struct kms_item *item; + struct combination *combo; + struct drv_array *kms_items; - while (value >>= 1) - ++ret; + /* + * 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. + */ + 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); + + kms_items = drv_query_kms(drv); + if (!kms_items) + return 0; + + for (i = 0; i < drv_array_size(kms_items); i++) { + item = (struct kms_item *)drv_array_at_idx(kms_items, i); + for (j = 0; j < drv_array_size(drv->combos); j++) { + combo = drv_array_at_idx(drv->combos, j); + if (item->format == combo->format) + combo->use_flags |= BO_USE_SCANOUT; + } + } - return ret; + drv_array_destroy(kms_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 < order_count; i++) { + for (j = 0; j < count; j++) { + if (modifiers[j] == modifier_order[i]) { + return modifiers[j]; + } + } + } + + return DRM_FORMAT_MOD_LINEAR; +}