Stéphane Marchesin | 25a2606 | 2014-09-12 16:18:59 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014 The Chromium OS Authors. All rights reserved. |
| 3 | * Use of this source code is governed by a BSD-style license that can be |
| 4 | * found in the LICENSE file. |
| 5 | */ |
| 6 | |
| 7 | #include <stdlib.h> |
| 8 | #include <stdint.h> |
| 9 | #include <string.h> |
| 10 | #include <xf86drm.h> |
| 11 | |
| 12 | #include "gbm_priv.h" |
| 13 | #include "util.h" |
| 14 | |
| 15 | /* |
| 16 | gbm_buffer_base.cc: gbm_bo_get_width(bo), |
| 17 | gbm_buffer_base.cc: gbm_bo_get_height(bo), |
| 18 | gbm_buffer_base.cc: gbm_bo_get_stride(bo), |
| 19 | gbm_buffer_base.cc: gbm_bo_get_handle(bo).u32, |
| 20 | gbm_buffer_base.cc: return gbm_bo_get_handle(bo_).u32; |
| 21 | gbm_buffer_base.cc: return gfx::Size(gbm_bo_get_width(bo_), gbm_bo_get_height(bo_)); |
| 22 | gbm_buffer.cc: gbm_bo_destroy(bo()); |
| 23 | gbm_buffer.cc: gbm_bo* bo = gbm_bo_create(device, |
| 24 | gbm_surface.cc: gbm_bo_set_user_data(bo, this, GbmSurfaceBuffer::Destroy); |
| 25 | gbm_surface.cc: static_cast<GbmSurfaceBuffer*>(gbm_bo_get_user_data(buffer))); |
| 26 | gbm_surface.cc: gbm_surface_release_buffer(native_surface_, current_buffer_); |
| 27 | gbm_surface.cc: gbm_surface_destroy(native_surface_); |
| 28 | gbm_surface.cc: native_surface_ = gbm_surface_create( |
| 29 | gbm_surface.cc: gbm_bo* pending_buffer = gbm_surface_lock_front_buffer(native_surface_); |
| 30 | gbm_surface.cc: gbm_surface_release_buffer(native_surface_, current_buffer_); |
| 31 | ozone_platform_gbm.cc: device_(gbm_create_device(dri_->get_fd())) {} |
| 32 | ozone_platform_gbm.cc: gbm_device_destroy(device_); |
| 33 | */ |
| 34 | |
| 35 | extern struct gbm_driver gbm_driver_cirrus; |
| 36 | #ifdef GBM_EXYNOS |
| 37 | extern struct gbm_driver gbm_driver_exynos; |
| 38 | #endif |
| 39 | extern struct gbm_driver gbm_driver_gma500; |
| 40 | #ifdef GBM_I915 |
| 41 | extern struct gbm_driver gbm_driver_i915; |
| 42 | #endif |
| 43 | #ifdef GBM_ROCKCHIP |
| 44 | extern struct gbm_driver gbm_driver_rockchip; |
| 45 | #endif |
| 46 | #ifdef GBM_TEGRA |
| 47 | extern struct gbm_driver gbm_driver_tegra; |
| 48 | #endif |
| 49 | extern struct gbm_driver gbm_driver_udl; |
| 50 | |
| 51 | static struct gbm_driver *gbm_get_driver(int fd) |
| 52 | { |
| 53 | drmVersionPtr drm_version; |
| 54 | unsigned int i; |
| 55 | |
| 56 | drm_version = drmGetVersion(fd); |
| 57 | |
| 58 | if (!drm_version) |
| 59 | return NULL; |
| 60 | |
| 61 | struct gbm_driver *driver_list[] = { |
| 62 | &gbm_driver_cirrus, |
| 63 | #ifdef GBM_EXYNOS |
| 64 | &gbm_driver_exynos, |
| 65 | #endif |
| 66 | &gbm_driver_gma500, |
| 67 | #ifdef GBM_I915 |
| 68 | &gbm_driver_i915, |
| 69 | #endif |
| 70 | #ifdef GBM_ROCKCHIP |
| 71 | &gbm_driver_rockchip, |
| 72 | #endif |
| 73 | #ifdef GBM_TEGRA |
| 74 | &gbm_driver_tegra, |
| 75 | #endif |
| 76 | &gbm_driver_udl, |
| 77 | }; |
| 78 | |
| 79 | for(i = 0; i < ARRAY_SIZE(driver_list); i++) |
| 80 | if (!strcmp(drm_version->name, driver_list[i]->name)) |
| 81 | { |
| 82 | drmFreeVersion(drm_version); |
| 83 | return driver_list[i]; |
| 84 | } |
| 85 | |
| 86 | drmFreeVersion(drm_version); |
| 87 | return NULL; |
| 88 | } |
| 89 | |
| 90 | PUBLIC int |
| 91 | gbm_device_get_fd(struct gbm_device *gbm) |
| 92 | { |
| 93 | return gbm->fd; |
| 94 | } |
| 95 | |
| 96 | PUBLIC const char * |
| 97 | gbm_device_get_backend_name(struct gbm_device *gbm) |
| 98 | { |
| 99 | return gbm->driver->name; |
| 100 | } |
| 101 | |
| 102 | PUBLIC int |
| 103 | gbm_device_is_format_supported(struct gbm_device *gbm, |
| 104 | uint32_t format, uint32_t usage) |
| 105 | { |
| 106 | unsigned i; |
| 107 | |
| 108 | if (format == GBM_BO_FORMAT_XRGB8888) |
| 109 | format = GBM_FORMAT_XRGB8888; |
| 110 | if (format == GBM_BO_FORMAT_ARGB8888) |
| 111 | format = GBM_FORMAT_ARGB8888; |
| 112 | |
| 113 | if (usage & GBM_BO_USE_CURSOR && |
| 114 | usage & GBM_BO_USE_RENDERING) |
| 115 | return 0; |
| 116 | |
| 117 | for(i = 0 ; i < ARRAY_SIZE(gbm->driver->format_list); i++) |
| 118 | { |
| 119 | if (!gbm->driver->format_list[i].format) |
| 120 | break; |
| 121 | |
| 122 | if (gbm->driver->format_list[i].format == format && |
| 123 | (gbm->driver->format_list[i].usage & usage) == usage) |
| 124 | return 1; |
| 125 | } |
| 126 | |
| 127 | return 0; |
| 128 | } |
| 129 | |
| 130 | PUBLIC struct gbm_device *gbm_create_device(int fd) |
| 131 | { |
| 132 | struct gbm_device *gbm; |
| 133 | int ret; |
| 134 | |
| 135 | gbm = (struct gbm_device*) malloc(sizeof(*gbm)); |
| 136 | if (!gbm) |
| 137 | return NULL; |
| 138 | |
| 139 | gbm->fd = fd; |
| 140 | |
| 141 | gbm->driver = gbm_get_driver(fd); |
| 142 | if (!gbm->driver) { |
| 143 | free(gbm); |
| 144 | return NULL; |
| 145 | } |
| 146 | |
| 147 | if (gbm->driver->init) { |
| 148 | ret = gbm->driver->init(gbm); |
| 149 | if (ret) { |
| 150 | free(gbm); |
| 151 | return NULL; |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | return gbm; |
| 156 | } |
| 157 | |
| 158 | PUBLIC void gbm_device_destroy(struct gbm_device *gbm) |
| 159 | { |
| 160 | if (gbm->driver->close) |
| 161 | gbm->driver->close(gbm); |
| 162 | free(gbm); |
| 163 | } |
| 164 | |
| 165 | PUBLIC struct gbm_surface *gbm_surface_create(struct gbm_device *gbm, uint32_t width, uint32_t height, uint32_t format, uint32_t flags) |
| 166 | { |
| 167 | struct gbm_surface *surface = (struct gbm_surface*) malloc(sizeof(*surface)); |
| 168 | if (!surface) |
| 169 | return NULL; |
| 170 | |
| 171 | return surface; |
| 172 | } |
| 173 | |
| 174 | PUBLIC void gbm_surface_destroy(struct gbm_surface *surface) |
| 175 | { |
| 176 | free(surface); |
| 177 | } |
| 178 | |
| 179 | PUBLIC struct gbm_bo *gbm_surface_lock_front_buffer(struct gbm_surface *surface) |
| 180 | { |
| 181 | return NULL; |
| 182 | } |
| 183 | |
| 184 | PUBLIC void gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo) |
| 185 | { |
| 186 | } |
| 187 | |
| 188 | PUBLIC struct gbm_bo *gbm_bo_create(struct gbm_device *gbm, uint32_t width, uint32_t height, uint32_t format, uint32_t flags) |
| 189 | { |
| 190 | struct gbm_bo *bo; |
| 191 | int ret; |
| 192 | |
| 193 | bo = (struct gbm_bo*) malloc(sizeof(*bo)); |
| 194 | if (!bo) |
| 195 | return NULL; |
| 196 | |
| 197 | bo->gbm = gbm; |
| 198 | bo->width = width; |
| 199 | bo->height = height; |
| 200 | bo->stride = 0; |
| 201 | bo->format = format; |
| 202 | bo->handle.u32 = 0; |
| 203 | bo->destroy_user_data = NULL; |
| 204 | bo->user_data = NULL; |
| 205 | |
| 206 | ret = gbm->driver->bo_create(bo, width, height, format, flags); |
| 207 | if (ret) { |
| 208 | free(bo); |
| 209 | return NULL; |
| 210 | } |
| 211 | |
| 212 | return bo; |
| 213 | } |
| 214 | |
| 215 | PUBLIC void gbm_bo_destroy(struct gbm_bo *bo) |
| 216 | { |
| 217 | if (bo->destroy_user_data) { |
| 218 | bo->destroy_user_data(bo, bo->user_data); |
| 219 | bo->destroy_user_data = NULL; |
| 220 | bo->user_data = NULL; |
| 221 | } |
| 222 | |
| 223 | bo->gbm->driver->bo_destroy(bo); |
| 224 | free(bo); |
| 225 | } |
| 226 | |
| 227 | PUBLIC uint32_t |
| 228 | gbm_bo_get_width(struct gbm_bo *bo) |
| 229 | { |
| 230 | return bo->width; |
| 231 | } |
| 232 | |
| 233 | PUBLIC uint32_t |
| 234 | gbm_bo_get_height(struct gbm_bo *bo) |
| 235 | { |
| 236 | return bo->height; |
| 237 | } |
| 238 | |
| 239 | PUBLIC uint32_t |
| 240 | gbm_bo_get_stride(struct gbm_bo *bo) |
| 241 | { |
| 242 | return bo->stride; |
| 243 | } |
| 244 | |
| 245 | PUBLIC uint32_t |
| 246 | gbm_bo_get_format(struct gbm_bo *bo) |
| 247 | { |
| 248 | return bo->format; |
| 249 | } |
| 250 | |
| 251 | PUBLIC struct gbm_device * |
| 252 | gbm_bo_get_device(struct gbm_bo *bo) |
| 253 | { |
| 254 | return bo->gbm; |
| 255 | } |
| 256 | |
| 257 | PUBLIC union gbm_bo_handle |
| 258 | gbm_bo_get_handle(struct gbm_bo *bo) |
| 259 | { |
| 260 | return bo->handle; |
| 261 | } |
| 262 | |
| 263 | PUBLIC int |
| 264 | gbm_bo_get_fd(struct gbm_bo *bo) |
| 265 | { |
| 266 | return bo->gbm->fd; |
| 267 | } |
| 268 | |
| 269 | PUBLIC void |
| 270 | gbm_bo_set_user_data(struct gbm_bo *bo, void *data, |
| 271 | void (*destroy_user_data)(struct gbm_bo *, void *)) |
| 272 | { |
| 273 | bo->user_data = data; |
| 274 | bo->destroy_user_data = destroy_user_data; |
| 275 | } |
| 276 | |
| 277 | PUBLIC void * |
| 278 | gbm_bo_get_user_data(struct gbm_bo *bo) |
| 279 | { |
| 280 | return bo->user_data; |
| 281 | } |