/*
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* Copyright 2014 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include <assert.h>
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#include <fcntl.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <xf86drm.h>
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#include "drv.h"
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#include "gbm_helpers.h"
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#include "gbm_priv.h"
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#include "util.h"
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PUBLIC int gbm_device_get_fd(struct gbm_device *gbm)
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{
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return drv_get_fd(gbm->drv);
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}
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PUBLIC const char *gbm_device_get_backend_name(struct gbm_device *gbm)
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{
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return drv_get_name(gbm->drv);
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}
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PUBLIC int gbm_device_is_format_supported(struct gbm_device *gbm, uint32_t format, uint32_t usage)
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{
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uint64_t use_flags;
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if (usage & GBM_BO_USE_CURSOR && usage & GBM_BO_USE_RENDERING)
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return 0;
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use_flags = gbm_convert_usage(usage);
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return (drv_get_combination(gbm->drv, format, use_flags) != NULL);
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}
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PUBLIC struct gbm_device *gbm_create_device(int fd)
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{
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struct gbm_device *gbm;
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gbm = (struct gbm_device *)malloc(sizeof(*gbm));
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if (!gbm)
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return NULL;
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gbm->drv = drv_create(fd);
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if (!gbm->drv) {
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free(gbm);
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return NULL;
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}
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return gbm;
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}
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PUBLIC void gbm_device_destroy(struct gbm_device *gbm)
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{
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drv_destroy(gbm->drv);
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free(gbm);
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}
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PUBLIC struct gbm_surface *gbm_surface_create(struct gbm_device *gbm, uint32_t width,
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uint32_t height, uint32_t format, uint32_t usage)
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{
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struct gbm_surface *surface = (struct gbm_surface *)malloc(sizeof(*surface));
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if (!surface)
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return NULL;
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return surface;
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}
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PUBLIC void gbm_surface_destroy(struct gbm_surface *surface)
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{
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free(surface);
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}
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PUBLIC struct gbm_bo *gbm_surface_lock_front_buffer(struct gbm_surface *surface)
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{
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return NULL;
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}
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PUBLIC void gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo)
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{
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}
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static struct gbm_bo *gbm_bo_new(struct gbm_device *gbm, uint32_t format)
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{
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struct gbm_bo *bo;
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bo = (struct gbm_bo *)calloc(1, sizeof(*bo));
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if (!bo)
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return NULL;
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bo->gbm = gbm;
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bo->gbm_format = format;
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return bo;
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}
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PUBLIC struct gbm_bo *gbm_bo_create(struct gbm_device *gbm, uint32_t width, uint32_t height,
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uint32_t format, uint32_t usage)
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{
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struct gbm_bo *bo;
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if (!gbm_device_is_format_supported(gbm, format, usage))
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return NULL;
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bo = gbm_bo_new(gbm, format);
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if (!bo)
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return NULL;
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bo->bo = drv_bo_create(gbm->drv, width, height, format, gbm_convert_usage(usage));
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if (!bo->bo) {
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free(bo);
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return NULL;
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}
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return bo;
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}
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PUBLIC struct gbm_bo *gbm_bo_create_with_modifiers(struct gbm_device *gbm, uint32_t width,
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uint32_t height, uint32_t format,
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const uint64_t *modifiers, uint32_t count)
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{
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struct gbm_bo *bo;
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bo = gbm_bo_new(gbm, format);
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if (!bo)
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return NULL;
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bo->bo = drv_bo_create_with_modifiers(gbm->drv, width, height, format, modifiers, count);
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if (!bo->bo) {
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free(bo);
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return NULL;
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}
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return bo;
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}
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PUBLIC void gbm_bo_destroy(struct gbm_bo *bo)
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{
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if (bo->destroy_user_data) {
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bo->destroy_user_data(bo, bo->user_data);
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bo->destroy_user_data = NULL;
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bo->user_data = NULL;
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}
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drv_bo_destroy(bo->bo);
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free(bo);
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}
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PUBLIC struct gbm_bo *gbm_bo_import(struct gbm_device *gbm, uint32_t type, void *buffer,
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uint32_t usage)
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{
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struct gbm_bo *bo;
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struct drv_import_fd_data drv_data;
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struct gbm_import_fd_data *fd_data = buffer;
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struct gbm_import_fd_planar_data *fd_planar_data = buffer;
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uint32_t gbm_format;
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size_t num_planes, i;
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memset(&drv_data, 0, sizeof(drv_data));
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drv_data.use_flags = gbm_convert_usage(usage);
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switch (type) {
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case GBM_BO_IMPORT_FD:
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gbm_format = fd_data->format;
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drv_data.width = fd_data->width;
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drv_data.height = fd_data->height;
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drv_data.format = fd_data->format;
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drv_data.fds[0] = fd_data->fd;
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drv_data.strides[0] = fd_data->stride;
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break;
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case GBM_BO_IMPORT_FD_PLANAR:
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gbm_format = fd_planar_data->format;
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drv_data.width = fd_planar_data->width;
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drv_data.height = fd_planar_data->height;
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drv_data.format = fd_planar_data->format;
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num_planes = drv_num_planes_from_format(drv_data.format);
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assert(num_planes);
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for (i = 0; i < num_planes; i++) {
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drv_data.fds[i] = fd_planar_data->fds[i];
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drv_data.offsets[i] = fd_planar_data->offsets[i];
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drv_data.strides[i] = fd_planar_data->strides[i];
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drv_data.format_modifiers[i] = fd_planar_data->format_modifiers[i];
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}
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for (i = num_planes; i < GBM_MAX_PLANES; i++)
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drv_data.fds[i] = -1;
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break;
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default:
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return NULL;
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}
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if (!gbm_device_is_format_supported(gbm, gbm_format, usage))
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return NULL;
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bo = gbm_bo_new(gbm, gbm_format);
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if (!bo)
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return NULL;
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bo->bo = drv_bo_import(gbm->drv, &drv_data);
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if (!bo->bo) {
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free(bo);
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return NULL;
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}
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return bo;
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}
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PUBLIC void *gbm_bo_map(struct gbm_bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height,
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uint32_t transfer_flags, uint32_t *stride, void **map_data, size_t plane)
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{
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void *addr;
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off_t offset;
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uint32_t map_flags;
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struct rectangle rect = { .x = x, .y = y, .width = width, .height = height };
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if (!bo || width == 0 || height == 0 || !stride || !map_data)
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return NULL;
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map_flags = (transfer_flags & GBM_BO_TRANSFER_READ) ? BO_MAP_READ : BO_MAP_NONE;
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map_flags |= (transfer_flags & GBM_BO_TRANSFER_WRITE) ? BO_MAP_WRITE : BO_MAP_NONE;
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addr = drv_bo_map(bo->bo, &rect, map_flags, (struct mapping **)map_data, plane);
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if (addr == MAP_FAILED)
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return MAP_FAILED;
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*stride = ((struct mapping *)*map_data)->vma->map_strides[plane];
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offset = *stride * rect.y;
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offset += drv_stride_from_format(bo->gbm_format, rect.x, plane);
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return (void *)((uint8_t *)addr + offset);
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}
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PUBLIC void gbm_bo_unmap(struct gbm_bo *bo, void *map_data)
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{
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assert(bo);
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drv_bo_flush_or_unmap(bo->bo, map_data);
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}
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PUBLIC uint32_t gbm_bo_get_width(struct gbm_bo *bo)
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{
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return drv_bo_get_width(bo->bo);
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}
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PUBLIC uint32_t gbm_bo_get_height(struct gbm_bo *bo)
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{
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return drv_bo_get_height(bo->bo);
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}
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PUBLIC uint32_t gbm_bo_get_stride(struct gbm_bo *bo)
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{
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return gbm_bo_get_plane_stride(bo, 0);
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}
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PUBLIC uint32_t gbm_bo_get_stride_or_tiling(struct gbm_bo *bo)
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{
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return drv_bo_get_stride_or_tiling(bo->bo);
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}
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PUBLIC uint32_t gbm_bo_get_format(struct gbm_bo *bo)
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{
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return bo->gbm_format;
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}
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PUBLIC uint64_t gbm_bo_get_format_modifier(struct gbm_bo *bo)
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{
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return gbm_bo_get_plane_format_modifier(bo, 0);
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}
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PUBLIC struct gbm_device *gbm_bo_get_device(struct gbm_bo *bo)
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{
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return bo->gbm;
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}
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PUBLIC union gbm_bo_handle gbm_bo_get_handle(struct gbm_bo *bo)
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{
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return gbm_bo_get_plane_handle(bo, 0);
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}
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PUBLIC int gbm_bo_get_fd(struct gbm_bo *bo)
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{
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return gbm_bo_get_plane_fd(bo, 0);
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}
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PUBLIC size_t gbm_bo_get_num_planes(struct gbm_bo *bo)
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{
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return drv_bo_get_num_planes(bo->bo);
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}
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PUBLIC union gbm_bo_handle gbm_bo_get_plane_handle(struct gbm_bo *bo, size_t plane)
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{
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return (union gbm_bo_handle)drv_bo_get_plane_handle(bo->bo, plane).u64;
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}
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PUBLIC int gbm_bo_get_plane_fd(struct gbm_bo *bo, size_t plane)
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{
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return drv_bo_get_plane_fd(bo->bo, plane);
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}
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PUBLIC uint32_t gbm_bo_get_plane_offset(struct gbm_bo *bo, size_t plane)
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{
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return drv_bo_get_plane_offset(bo->bo, plane);
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}
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PUBLIC uint32_t gbm_bo_get_plane_size(struct gbm_bo *bo, size_t plane)
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{
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return drv_bo_get_plane_size(bo->bo, plane);
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}
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PUBLIC uint32_t gbm_bo_get_plane_stride(struct gbm_bo *bo, size_t plane)
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{
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return drv_bo_get_plane_stride(bo->bo, plane);
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}
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PUBLIC uint64_t gbm_bo_get_plane_format_modifier(struct gbm_bo *bo, size_t plane)
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{
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return drv_bo_get_plane_format_modifier(bo->bo, plane);
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}
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PUBLIC void gbm_bo_set_user_data(struct gbm_bo *bo, void *data,
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void (*destroy_user_data)(struct gbm_bo *, void *))
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{
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bo->user_data = data;
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bo->destroy_user_data = destroy_user_data;
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}
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PUBLIC void *gbm_bo_get_user_data(struct gbm_bo *bo)
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{
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return bo->user_data;
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}
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