gralloc_drm_pipe.c

   1 /*
   2  * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
   3  * Copyright (C) 2010-2011 LunarG Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included
  13  * in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #define LOG_TAG "GRALLOC-PIPE"
  25
  26 #include <cutils/log.h>
  27 #include <errno.h>
  28 #include <dlfcn.h>
  29
  30 #include <pipe/p_screen.h>
  31 #include <pipe/p_context.h>
  32 #include <state_tracker/winsys_handle.h>
  33 #include <util/u_inlines.h>
  34 #include <util/u_memory.h>
  35
  36 #include "gralloc_drm.h"
  37 #include "gralloc_drm_priv.h"
  38
  39 #if defined(__LP64__)
  40 #define DRI_LIBRARY_PATH "/vendor/lib64/dri"
  41 #else
  42 #define DRI_LIBRARY_PATH "/vendor/lib/dri"
  43 #endif
  44
  45 struct pipe_manager {
  46         struct gralloc_drm_drv_t base;
  47
  48         int fd;
  49         void *gallium;
  50         pthread_mutex_t mutex;
  51         struct pipe_loader_device *dev;
  52         struct pipe_screen *screen;
  53         struct pipe_context *context;
  54 };
  55
  56 struct pipe_buffer {
  57         struct gralloc_drm_bo_t base;
  58
  59         struct pipe_resource *resource;
  60         struct winsys_handle winsys;
  61
  62         struct pipe_transfer *transfer;
  63 };
  64
  65 static enum pipe_format get_pipe_format(int format)
  66 {
  67         enum pipe_format fmt;
  68
  69         switch (format) {
  70         case HAL_PIXEL_FORMAT_RGBA_8888:
  71                 fmt = PIPE_FORMAT_R8G8B8A8_UNORM;
  72                 break;
  73         case HAL_PIXEL_FORMAT_RGBX_8888:
  74                 fmt = PIPE_FORMAT_R8G8B8X8_UNORM;
  75                 break;
  76         case HAL_PIXEL_FORMAT_RGB_888:
  77                 fmt = PIPE_FORMAT_R8G8B8_UNORM;
  78                 break;
  79         case HAL_PIXEL_FORMAT_RGB_565:
  80                 fmt = PIPE_FORMAT_B5G6R5_UNORM;
  81                 break;
  82         case HAL_PIXEL_FORMAT_BGRA_8888:
  83                 fmt = PIPE_FORMAT_B8G8R8A8_UNORM;
  84                 break;
  85         case HAL_PIXEL_FORMAT_YV12:
  86         case HAL_PIXEL_FORMAT_DRM_NV12:
  87         case HAL_PIXEL_FORMAT_YCbCr_422_SP:
  88         case HAL_PIXEL_FORMAT_YCrCb_420_SP:
  89         default:
  90                 fmt = PIPE_FORMAT_NONE;
  91                 break;
  92         }
  93
  94         return fmt;
  95 }
  96
  97 static unsigned get_pipe_bind(int usage)
  98 {
  99         unsigned bind = PIPE_BIND_SHARED;
 100
 101         if (usage & (GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN))
 102                 bind |= PIPE_BIND_LINEAR;
 103         if (usage & GRALLOC_USAGE_HW_TEXTURE)
 104                 bind |= PIPE_BIND_SAMPLER_VIEW;
 105         if (usage & GRALLOC_USAGE_HW_RENDER)
 106                 bind |= PIPE_BIND_RENDER_TARGET;
 107         if (usage & GRALLOC_USAGE_HW_FB) {
 108                 bind |= PIPE_BIND_RENDER_TARGET;
 109                 bind |= PIPE_BIND_SCANOUT;
 110         }
 111
 112         return bind;
 113 }
 114
 115 static struct pipe_buffer *get_pipe_buffer_locked(struct pipe_manager *pm,
 116                 const struct gralloc_drm_handle_t *handle)
 117 {
 118         struct pipe_buffer *buf;
 119         struct pipe_resource templ;
 120
 121         memset(&templ, 0, sizeof(templ));
 122         templ.format = get_pipe_format(handle->format);
 123         templ.bind = get_pipe_bind(handle->usage);
 124         templ.target = PIPE_TEXTURE_2D;
 125
 126         if (templ.format == PIPE_FORMAT_NONE ||
 127             !pm->screen->is_format_supported(pm->screen, templ.format,
 128                                 templ.target, 0, 0, templ.bind)) {
 129                 ALOGE("unsupported format 0x%x", handle->format);
 130                 return NULL;
 131         }
 132
 133         buf = CALLOC(1, sizeof(*buf));
 134         if (!buf) {
 135                 ALOGE("failed to allocate pipe buffer");
 136                 return NULL;
 137         }
 138
 139         templ.width0 = handle->width;
 140         templ.height0 = handle->height;
 141         templ.depth0 = 1;
 142         templ.array_size = 1;
 143
 144         if (handle->name) {
 145                 buf->winsys.type = WINSYS_HANDLE_TYPE_SHARED;
 146                 buf->winsys.handle = handle->name;
 147                 buf->winsys.stride = handle->stride;
 148
 149                 buf->resource = pm->screen->resource_from_handle(pm->screen,
 150                                 &templ, &buf->winsys, PIPE_HANDLE_USAGE_READ_WRITE);
 151                 if (!buf->resource)
 152                         goto fail;
 153         }
 154         else {
 155                 buf->resource =
 156                         pm->screen->resource_create(pm->screen, &templ);
 157                 if (!buf->resource)
 158                         goto fail;
 159
 160                 buf->winsys.type = WINSYS_HANDLE_TYPE_SHARED;
 161                 if (!pm->screen->resource_get_handle(pm->screen, pm->context,
 162                                 buf->resource, &buf->winsys, PIPE_HANDLE_USAGE_READ_WRITE))
 163                         goto fail;
 164         }
 165
 166         /* need the gem handle for fb */
 167         if (handle->usage & GRALLOC_USAGE_HW_FB) {
 168                 struct winsys_handle tmp;
 169
 170                 memset(&tmp, 0, sizeof(tmp));
 171                 tmp.type = WINSYS_HANDLE_TYPE_KMS;
 172                 if (!pm->screen->resource_get_handle(pm->screen, pm->context,
 173                                 buf->resource, &tmp, PIPE_HANDLE_USAGE_READ_WRITE))
 174                         goto fail;
 175
 176                 buf->base.fb_handle = tmp.handle;
 177         }
 178
 179         return buf;
 180
 181 fail:
 182         ALOGE("failed to allocate pipe buffer");
 183         if (buf->resource)
 184                 pipe_resource_reference(&buf->resource, NULL);
 185         FREE(buf);
 186
 187         return NULL;
 188 }
 189
 190 static struct gralloc_drm_bo_t *pipe_alloc(struct gralloc_drm_drv_t *drv,
 191                 struct gralloc_drm_handle_t *handle)
 192 {
 193         struct pipe_manager *pm = (struct pipe_manager *) drv;
 194         struct pipe_buffer *buf;
 195
 196         pthread_mutex_lock(&pm->mutex);
 197         buf = get_pipe_buffer_locked(pm, handle);
 198         pthread_mutex_unlock(&pm->mutex);
 199
 200         if (buf) {
 201                 handle->name = (int) buf->winsys.handle;
 202                 handle->stride = (int) buf->winsys.stride;
 203
 204                 buf->base.handle = handle;
 205         }
 206
 207         return &buf->base;
 208 }
 209
 210 static void pipe_free(struct gralloc_drm_drv_t *drv, struct gralloc_drm_bo_t *bo)
 211 {
 212         struct pipe_manager *pm = (struct pipe_manager *) drv;
 213         struct pipe_buffer *buf = (struct pipe_buffer *) bo;
 214
 215         pthread_mutex_lock(&pm->mutex);
 216
 217         if (buf->transfer)
 218                 pipe_transfer_unmap(pm->context, buf->transfer);
 219         pipe_resource_reference(&buf->resource, NULL);
 220
 221         pthread_mutex_unlock(&pm->mutex);
 222
 223         FREE(buf);
 224 }
 225
 226 static int pipe_map(struct gralloc_drm_drv_t *drv,
 227                 struct gralloc_drm_bo_t *bo, int x, int y, int w, int h,
 228                 int enable_write, void **addr)
 229 {
 230         struct pipe_manager *pm = (struct pipe_manager *) drv;
 231         struct pipe_buffer *buf = (struct pipe_buffer *) bo;
 232         int err = 0;
 233
 234         pthread_mutex_lock(&pm->mutex);
 235
 236         /* need a context to get transfer */
 237         if (!pm->context) {
 238                 pm->context = pm->screen->context_create(pm->screen, NULL, 0);
 239                 if (!pm->context) {
 240                         ALOGE("failed to create pipe context");
 241                         err = -ENOMEM;
 242                 }
 243         }
 244
 245         if (!err) {
 246                 enum pipe_transfer_usage usage;
 247
 248                 usage = PIPE_TRANSFER_READ;
 249                 if (enable_write)
 250                         usage |= PIPE_TRANSFER_WRITE;
 251
 252                 assert(!buf->transfer);
 253
 254                 /*
 255                  * ignore x, y, w and h so that returned addr points at the
 256                  * start of the buffer
 257                  */
 258                 *addr = pipe_transfer_map(pm->context, buf->resource,
 259                                           0, 0, usage, 0, 0,
 260                                           buf->resource->width0, buf->resource->height0,
 261                                           &buf->transfer);
 262                 if (*addr == NULL)
 263                         err = -ENOMEM;
 264         }
 265
 266         pthread_mutex_unlock(&pm->mutex);
 267
 268         return err;
 269 }
 270
 271 static void pipe_unmap(struct gralloc_drm_drv_t *drv,
 272                 struct gralloc_drm_bo_t *bo)
 273 {
 274         struct pipe_manager *pm = (struct pipe_manager *) drv;
 275         struct pipe_buffer *buf = (struct pipe_buffer *) bo;
 276
 277         pthread_mutex_lock(&pm->mutex);
 278
 279         assert(buf && buf->transfer);
 280
 281         pipe_transfer_unmap(pm->context, buf->transfer);
 282         buf->transfer = NULL;
 283
 284         pm->context->flush(pm->context, NULL, 0);
 285
 286         pthread_mutex_unlock(&pm->mutex);
 287 }
 288
 289 static void pipe_blit(struct gralloc_drm_drv_t *drv,
 290                 struct gralloc_drm_bo_t *dst_bo,
 291                 struct gralloc_drm_bo_t *src_bo,
 292                 uint16_t dst_x1, uint16_t dst_y1,
 293                 uint16_t dst_x2, uint16_t dst_y2,
 294                 uint16_t src_x1, uint16_t src_y1,
 295                 uint16_t src_x2, uint16_t src_y2)
 296 {
 297         struct pipe_manager *pm = (struct pipe_manager *) drv;
 298         struct pipe_buffer *dst = (struct pipe_buffer *) dst_bo;
 299         struct pipe_buffer *src = (struct pipe_buffer *) src_bo;
 300         struct pipe_box src_box;
 301
 302         if (dst_bo->handle->width != src_bo->handle->width ||
 303             dst_bo->handle->height != src_bo->handle->height ||
 304             dst_bo->handle->stride != src_bo->handle->stride ||
 305             dst_bo->handle->format != src_bo->handle->format) {
 306                 ALOGE("copy between incompatible buffers");
 307                 return;
 308         }
 309
 310         if (dst_x2 > dst_bo->handle->width)
 311                 dst_x2 = dst_bo->handle->width;
 312         if (dst_y2 > dst_bo->handle->height)
 313                 dst_y2 = dst_bo->handle->height;
 314
 315         if (src_x2 <= src_x1 || src_y2 <= src_y1)
 316                 return;
 317
 318         u_box_2d(src_x1, src_y1, src_x2 - src_x1, src_y2 - src_y1, &src_box);
 319
 320         pthread_mutex_lock(&pm->mutex);
 321
 322         /* need a context for copying */
 323         if (!pm->context) {
 324                 pm->context = pm->screen->context_create(pm->screen, NULL, 0);
 325                 if (!pm->context) {
 326                         ALOGE("failed to create pipe context");
 327                         pthread_mutex_unlock(&pm->mutex);
 328                         return;
 329                 }
 330         }
 331
 332         pm->context->resource_copy_region(pm->context,
 333                         dst->resource, 0, dst_x1, dst_y1, 0,
 334                         src->resource, 0, &src_box);
 335         pm->context->flush(pm->context, NULL, 0);
 336
 337         pthread_mutex_unlock(&pm->mutex);
 338 }
 339
 340 static void pipe_init_kms_features(struct gralloc_drm_drv_t *drv, struct gralloc_drm_t *drm)
 341 {
 342         struct pipe_manager *pm = (struct pipe_manager *) drv;
 343
 344         switch (drm->primary->fb_format) {
 345         case HAL_PIXEL_FORMAT_BGRA_8888:
 346         case HAL_PIXEL_FORMAT_RGB_565:
 347                 break;
 348         default:
 349                 drm->primary->fb_format = HAL_PIXEL_FORMAT_BGRA_8888;
 350                 break;
 351         }
 352
 353         drm->mode_quirk_vmwgfx = 0;
 354         drm->swap_mode = DRM_SWAP_FLIP;
 355         drm->mode_sync_flip = 1;
 356         drm->swap_interval = 1;
 357         drm->vblank_secondary = 0;
 358 }
 359
 360 static void pipe_destroy(struct gralloc_drm_drv_t *drv)
 361 {
 362         struct pipe_manager *pm = (struct pipe_manager *) drv;
 363
 364         if (pm->context)
 365                 pm->context->destroy(pm->context);
 366         pm->screen->destroy(pm->screen);
 367         dlclose(pm->gallium);
 368         FREE(pm);
 369 }
 370
 371 struct gralloc_drm_drv_t *gralloc_drm_drv_create_for_pipe(int fd, const char *name)
 372 {
 373         struct pipe_manager *pm;
 374         struct pipe_screen *(*load_pipe_screen)(struct pipe_loader_device **dev, int fd);
 375
 376         pm = CALLOC(1, sizeof(*pm));
 377         if (!pm) {
 378                 ALOGE("failed to allocate pipe manager for %s", name);
 379                 return NULL;
 380         }
 381
 382         pm->fd = fd;
 383         pthread_mutex_init(&pm->mutex, NULL);
 384
 385         pm->gallium = dlopen(DRI_LIBRARY_PATH"/gallium_dri.so", RTLD_NOW | RTLD_GLOBAL);
 386         if (!pm->gallium)
 387                 goto err_open;
 388
 389         load_pipe_screen = dlsym(pm->gallium, "load_pipe_screen");
 390         if (!load_pipe_screen)
 391                 goto err_load;
 392
 393         pm->screen = load_pipe_screen(&pm->dev, fd);
 394         if (!pm->screen)
 395                 goto err_load;
 396
 397         pm->base.destroy = pipe_destroy;
 398         pm->base.init_kms_features = pipe_init_kms_features;
 399         pm->base.alloc = pipe_alloc;
 400         pm->base.free = pipe_free;
 401         pm->base.map = pipe_map;
 402         pm->base.unmap = pipe_unmap;
 403         pm->base.blit = pipe_blit;
 404
 405         return &pm->base;
 406
 407 err_load:
 408         dlclose(pm->gallium);
 409 err_open:
 410         FREE(pm);
 411         return NULL;
 412 }