| /* |
| * Copyright (c) 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. |
| */ |
| |
| #ifdef GBM_EXYNOS |
| |
| #include <assert.h> |
| #include <errno.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <xf86drm.h> |
| #include <exynos_drm.h> |
| |
| #include "gbm_priv.h" |
| #include "helpers.h" |
| #include "util.h" |
| |
| static int gbm_exynos_bo_create(struct gbm_bo *bo, |
| uint32_t width, uint32_t height, |
| uint32_t format, uint32_t flags) |
| { |
| size_t plane; |
| |
| if (format == GBM_FORMAT_NV12) { |
| uint32_t chroma_height; |
| /* V4L2 s5p-mfc requires width to be 16 byte aligned and height 32. */ |
| width = ALIGN(width, 16); |
| height = ALIGN(height, 32); |
| chroma_height = ALIGN(height / 2, 32); |
| bo->strides[0] = bo->strides[1] = width; |
| /* MFC v8+ requires 64 byte padding in the end of luma and chroma buffers. */ |
| bo->sizes[0] = bo->strides[0] * height + 64; |
| bo->sizes[1] = bo->strides[1] * chroma_height + 64; |
| bo->offsets[0] = bo->offsets[1] = 0; |
| } else if (format == GBM_FORMAT_XRGB8888 || format == GBM_FORMAT_ARGB8888 || |
| format == GBM_BO_FORMAT_XRGB8888 || format == GBM_BO_FORMAT_ARGB8888 ) { |
| bo->strides[0] = gbm_stride_from_format(format, width); |
| bo->sizes[0] = height * bo->strides[0]; |
| bo->offsets[0] = 0; |
| } else { |
| fprintf(stderr, "minigbm: unsupported format %X\n", format); |
| assert(0); |
| return -EINVAL; |
| } |
| |
| for (plane = 0; plane < bo->num_planes; plane++) { |
| size_t size = bo->sizes[plane]; |
| struct drm_exynos_gem_create gem_create; |
| int ret; |
| |
| memset(&gem_create, 0, sizeof(gem_create)); |
| gem_create.size = size; |
| gem_create.flags = EXYNOS_BO_NONCONTIG; |
| |
| ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &gem_create); |
| if (ret) { |
| fprintf(stderr, "minigbm: DRM_IOCTL_EXYNOS_GEM_CREATE failed " |
| "(size=%zu)\n", size); |
| return ret; |
| } |
| |
| bo->handles[plane].u32 = gem_create.handle; |
| } |
| |
| return 0; |
| } |
| |
| const struct gbm_driver gbm_driver_exynos = |
| { |
| .name = "exynos", |
| .bo_create = gbm_exynos_bo_create, |
| .bo_destroy = gbm_gem_bo_destroy, |
| .format_list = { |
| {GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING | GBM_BO_USE_WRITE}, |
| {GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE | GBM_BO_USE_LINEAR}, |
| {GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING | GBM_BO_USE_WRITE}, |
| {GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE | GBM_BO_USE_LINEAR}, |
| {GBM_FORMAT_NV12, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING | GBM_BO_USE_WRITE}, |
| } |
| }; |
| |
| #endif |