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/drm_driver.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 "/system/lib64/dri"
  41 #else
  42 #define DRI_LIBRARY_PATH "/system/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_MASK)
 102                 bind |= PIPE_BIND_TRANSFER_READ;
 103         if (usage & GRALLOC_USAGE_SW_WRITE_MASK)
 104                 bind |= PIPE_BIND_TRANSFER_WRITE;
 105
 106         if (usage & GRALLOC_USAGE_HW_TEXTURE)
 107                 bind |= PIPE_BIND_SAMPLER_VIEW;
 108         if (usage & GRALLOC_USAGE_HW_RENDER)
 109                 bind |= PIPE_BIND_RENDER_TARGET;
 110         if (usage & GRALLOC_USAGE_HW_FB) {
 111                 bind |= PIPE_BIND_RENDER_TARGET;
 112                 bind |= PIPE_BIND_SCANOUT;
 113         }
 114
 115         return bind;
 116 }
 117
 118 static struct pipe_buffer *get_pipe_buffer_locked(struct pipe_manager *pm,
 119                 const struct gralloc_drm_handle_t *handle)
 120 {
 121         struct pipe_buffer *buf;
 122         struct pipe_resource templ;
 123
 124         memset(&templ, 0, sizeof(templ));
 125         templ.format = get_pipe_format(handle->format);
 126         templ.bind = get_pipe_bind(handle->usage);
 127         templ.target = PIPE_TEXTURE_2D;
 128
 129         if (templ.format == PIPE_FORMAT_NONE ||
 130             !pm->screen->is_format_supported(pm->screen, templ.format,
 131                                 templ.target, 0, templ.bind)) {
 132                 ALOGE("unsupported format 0x%x", handle->format);
 133                 return NULL;
 134         }
 135
 136         buf = CALLOC(1, sizeof(*buf));
 137         if (!buf) {
 138                 ALOGE("failed to allocate pipe buffer");
 139                 return NULL;
 140         }
 141
 142         templ.width0 = handle->width;
 143         templ.height0 = handle->height;
 144         templ.depth0 = 1;
 145         templ.array_size = 1;
 146
 147         if (handle->name) {
 148                 buf->winsys.type = DRM_API_HANDLE_TYPE_SHARED;
 149                 buf->winsys.handle = handle->name;
 150                 buf->winsys.stride = handle->stride;
 151
 152                 buf->resource = pm->screen->resource_from_handle(pm->screen,
 153                                 &templ, &buf->winsys);
 154                 if (!buf->resource)
 155                         goto fail;
 156         }
 157         else {
 158                 buf->resource =
 159                         pm->screen->resource_create(pm->screen, &templ);
 160                 if (!buf->resource)
 161                         goto fail;
 162
 163                 buf->winsys.type = DRM_API_HANDLE_TYPE_SHARED;
 164                 if (!pm->screen->resource_get_handle(pm->screen,
 165                                         buf->resource, &buf->winsys))
 166                         goto fail;
 167         }
 168
 169         /* need the gem handle for fb */
 170         if (handle->usage & GRALLOC_USAGE_HW_FB) {
 171                 struct winsys_handle tmp;
 172
 173                 memset(&tmp, 0, sizeof(tmp));
 174                 tmp.type = DRM_API_HANDLE_TYPE_KMS;
 175                 if (!pm->screen->resource_get_handle(pm->screen,
 176                                         buf->resource, &tmp))
 177                         goto fail;
 178
 179                 buf->base.fb_handle = tmp.handle;
 180         }
 181
 182         return buf;
 183
 184 fail:
 185         ALOGE("failed to allocate pipe buffer");
 186         if (buf->resource)
 187                 pipe_resource_reference(&buf->resource, NULL);
 188         FREE(buf);
 189
 190         return NULL;
 191 }
 192
 193 static struct gralloc_drm_bo_t *pipe_alloc(struct gralloc_drm_drv_t *drv,
 194                 struct gralloc_drm_handle_t *handle)
 195 {
 196         struct pipe_manager *pm = (struct pipe_manager *) drv;
 197         struct pipe_buffer *buf;
 198
 199         pthread_mutex_lock(&pm->mutex);
 200         buf = get_pipe_buffer_locked(pm, handle);
 201         pthread_mutex_unlock(&pm->mutex);
 202
 203         if (buf) {
 204                 handle->name = (int) buf->winsys.handle;
 205                 handle->stride = (int) buf->winsys.stride;
 206
 207                 buf->base.handle = handle;
 208         }
 209
 210         return &buf->base;
 211 }
 212
 213 static void pipe_free(struct gralloc_drm_drv_t *drv, struct gralloc_drm_bo_t *bo)
 214 {
 215         struct pipe_manager *pm = (struct pipe_manager *) drv;
 216         struct pipe_buffer *buf = (struct pipe_buffer *) bo;
 217
 218         pthread_mutex_lock(&pm->mutex);
 219
 220         if (buf->transfer)
 221                 pipe_transfer_unmap(pm->context, buf->transfer);
 222         pipe_resource_reference(&buf->resource, NULL);
 223
 224         pthread_mutex_unlock(&pm->mutex);
 225
 226         FREE(buf);
 227 }
 228
 229 static int pipe_map(struct gralloc_drm_drv_t *drv,
 230                 struct gralloc_drm_bo_t *bo, int x, int y, int w, int h,
 231                 int enable_write, void **addr)
 232 {
 233         struct pipe_manager *pm = (struct pipe_manager *) drv;
 234         struct pipe_buffer *buf = (struct pipe_buffer *) bo;
 235         int err = 0;
 236
 237         pthread_mutex_lock(&pm->mutex);
 238
 239         /* need a context to get transfer */
 240         if (!pm->context) {
 241                 pm->context = pm->screen->context_create(pm->screen, NULL, 0);
 242                 if (!pm->context) {
 243                         ALOGE("failed to create pipe context");
 244                         err = -ENOMEM;
 245                 }
 246         }
 247
 248         if (!err) {
 249                 enum pipe_transfer_usage usage;
 250
 251                 usage = PIPE_TRANSFER_READ;
 252                 if (enable_write)
 253                         usage |= PIPE_TRANSFER_WRITE;
 254
 255                 assert(!buf->transfer);
 256
 257                 /*
 258                  * ignore x, y, w and h so that returned addr points at the
 259                  * start of the buffer
 260                  */
 261                 *addr = pipe_transfer_map(pm->context, buf->resource,
 262                                           0, 0, usage, 0, 0,
 263                                           buf->resource->width0, buf->resource->height0,
 264                                           &buf->transfer);
 265                 if (*addr == NULL)
 266                         err = -ENOMEM;
 267         }
 268
 269         pthread_mutex_unlock(&pm->mutex);
 270
 271         return err;
 272 }
 273
 274 static void pipe_unmap(struct gralloc_drm_drv_t *drv,
 275                 struct gralloc_drm_bo_t *bo)
 276 {
 277         struct pipe_manager *pm = (struct pipe_manager *) drv;
 278         struct pipe_buffer *buf = (struct pipe_buffer *) bo;
 279
 280         pthread_mutex_lock(&pm->mutex);
 281
 282         assert(buf && buf->transfer);
 283
 284         pipe_transfer_unmap(pm->context, buf->transfer);
 285         buf->transfer = NULL;
 286
 287         pm->context->flush(pm->context, NULL, 0);
 288
 289         pthread_mutex_unlock(&pm->mutex);
 290 }
 291
 292 static void pipe_blit(struct gralloc_drm_drv_t *drv,
 293                 struct gralloc_drm_bo_t *dst_bo,
 294                 struct gralloc_drm_bo_t *src_bo,
 295                 uint16_t dst_x1, uint16_t dst_y1,
 296                 uint16_t dst_x2, uint16_t dst_y2,
 297                 uint16_t src_x1, uint16_t src_y1,
 298                 uint16_t src_x2, uint16_t src_y2)
 299 {
 300         struct pipe_manager *pm = (struct pipe_manager *) drv;
 301         struct pipe_buffer *dst = (struct pipe_buffer *) dst_bo;
 302         struct pipe_buffer *src = (struct pipe_buffer *) src_bo;
 303         struct pipe_box src_box;
 304
 305         if (dst_bo->handle->width != src_bo->handle->width ||
 306             dst_bo->handle->height != src_bo->handle->height ||
 307             dst_bo->handle->stride != src_bo->handle->stride ||
 308             dst_bo->handle->format != src_bo->handle->format) {
 309                 ALOGE("copy between incompatible buffers");
 310                 return;
 311         }
 312
 313         if (dst_x2 > dst_bo->handle->width)
 314                 dst_x2 = dst_bo->handle->width;
 315         if (dst_y2 > dst_bo->handle->height)
 316                 dst_y2 = dst_bo->handle->height;
 317
 318         if (src_x2 <= src_x1 || src_y2 <= src_y1)
 319                 return;
 320
 321         u_box_2d(src_x1, src_y1, src_x2 - src_x1, src_y2 - src_y1, &src_box);
 322
 323         pthread_mutex_lock(&pm->mutex);
 324
 325         /* need a context for copying */
 326         if (!pm->context) {
 327                 pm->context = pm->screen->context_create(pm->screen, NULL, 0);
 328                 if (!pm->context) {
 329                         ALOGE("failed to create pipe context");
 330                         pthread_mutex_unlock(&pm->mutex);
 331                         return;
 332                 }
 333         }
 334
 335         pm->context->resource_copy_region(pm->context,
 336                         dst->resource, 0, dst_x1, dst_y1, 0,
 337                         src->resource, 0, &src_box);
 338         pm->context->flush(pm->context, NULL, 0);
 339
 340         pthread_mutex_unlock(&pm->mutex);
 341 }
 342
 343 static void pipe_init_kms_features(struct gralloc_drm_drv_t *drv, struct gralloc_drm_t *drm)
 344 {
 345         struct pipe_manager *pm = (struct pipe_manager *) drv;
 346
 347         switch (drm->primary.fb_format) {
 348         case HAL_PIXEL_FORMAT_BGRA_8888:
 349         case HAL_PIXEL_FORMAT_RGB_565:
 350                 break;
 351         default:
 352                 drm->primary.fb_format = HAL_PIXEL_FORMAT_BGRA_8888;
 353                 break;
 354         }
 355
 356         drm->mode_quirk_vmwgfx = 0;
 357         drm->swap_mode = DRM_SWAP_FLIP;
 358         drm->mode_sync_flip = 1;
 359         drm->swap_interval = 1;
 360         drm->vblank_secondary = 0;
 361 }
 362
 363 static void pipe_destroy(struct gralloc_drm_drv_t *drv)
 364 {
 365         struct pipe_manager *pm = (struct pipe_manager *) drv;
 366
 367         if (pm->context)
 368                 pm->context->destroy(pm->context);
 369         pm->screen->destroy(pm->screen);
 370         dlclose(pm->gallium);
 371         FREE(pm);
 372 }
 373
 374 struct gralloc_drm_drv_t *gralloc_drm_drv_create_for_pipe(int fd, const char *name)
 375 {
 376         struct pipe_manager *pm;
 377         struct pipe_screen *(*load_pipe_screen)(struct pipe_loader_device **dev, int fd);
 378
 379         pm = CALLOC(1, sizeof(*pm));
 380         if (!pm) {
 381                 ALOGE("failed to allocate pipe manager for %s", name);
 382                 return NULL;
 383         }
 384
 385         pm->fd = fd;
 386         pthread_mutex_init(&pm->mutex, NULL);
 387
 388         pm->gallium = dlopen(DRI_LIBRARY_PATH"/gallium_dri.so", RTLD_NOW | RTLD_GLOBAL);
 389         if (!pm->gallium)
 390                 goto err_open;
 391
 392         load_pipe_screen = dlsym(pm->gallium, "load_pipe_screen");
 393         if (!load_pipe_screen)
 394                 goto err_load;
 395
 396         pm->screen = load_pipe_screen(&pm->dev, fd);
 397         if (!pm->screen)
 398                 goto err_load;
 399
 400         pm->base.destroy = pipe_destroy;
 401         pm->base.init_kms_features = pipe_init_kms_features;
 402         pm->base.alloc = pipe_alloc;
 403         pm->base.free = pipe_free;
 404         pm->base.map = pipe_map;
 405         pm->base.unmap = pipe_unmap;
 406         pm->base.blit = pipe_blit;
 407
 408         return &pm->base;
 409
 410 err_load:
 411         dlclose(pm->gallium);
 412 err_open:
 413         FREE(pm);
 414         return NULL;
 415 }