cros_gralloc/cros_gralloc_helpers.cc

   1 /*
   2  * Copyright 2016 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 "cros_gralloc_helpers.h"
   8
   9 #include <sync/sync.h>
  10
  11 uint32_t cros_gralloc_convert_format(int format)
  12 {
  13         /*
  14          * Conversion from HAL to fourcc-based DRV formats based on
  15          * platform_android.c in mesa.
  16          */
  17
  18         switch (format) {
  19         case HAL_PIXEL_FORMAT_BGRA_8888:
  20                 return DRM_FORMAT_ARGB8888;
  21         case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
  22                 return DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED;
  23         case HAL_PIXEL_FORMAT_RAW16:
  24                 return DRM_FORMAT_R16;
  25         case HAL_PIXEL_FORMAT_RGB_565:
  26                 return DRM_FORMAT_RGB565;
  27         case HAL_PIXEL_FORMAT_RGB_888:
  28                 return DRM_FORMAT_BGR888;
  29         case HAL_PIXEL_FORMAT_RGBA_8888:
  30                 return DRM_FORMAT_ABGR8888;
  31         case HAL_PIXEL_FORMAT_RGBX_8888:
  32                 return DRM_FORMAT_XBGR8888;
  33         case HAL_PIXEL_FORMAT_YCbCr_420_888:
  34                 return DRM_FORMAT_FLEX_YCbCr_420_888;
  35         case HAL_PIXEL_FORMAT_YV12:
  36                 return DRM_FORMAT_YVU420_ANDROID;
  37         /*
  38          * Choose DRM_FORMAT_R8 because <system/graphics.h> requires the buffers
  39          * with a format HAL_PIXEL_FORMAT_BLOB have a height of 1, and width
  40          * equal to their size in bytes.
  41          */
  42         case HAL_PIXEL_FORMAT_BLOB:
  43                 return DRM_FORMAT_R8;
  44 #if ANDROID_VERSION >= 0x0a00
  45         case HAL_PIXEL_FORMAT_RGBA_1010102:
  46                 return DRM_FORMAT_ABGR2101010;
  47         case HAL_PIXEL_FORMAT_RGBA_FP16:
  48                 return DRM_FORMAT_ABGR16161616F;
  49 #endif
  50         }
  51
  52         return DRM_FORMAT_NONE;
  53 }
  54
  55 cros_gralloc_handle_t cros_gralloc_convert_handle(buffer_handle_t handle)
  56 {
  57         auto hnd = reinterpret_cast<cros_gralloc_handle_t>(handle);
  58         if (!hnd || hnd->magic != cros_gralloc_magic)
  59                 return nullptr;
  60
  61         return hnd;
  62 }
  63
  64 int32_t cros_gralloc_sync_wait(int32_t fence, bool close_fence)
  65 {
  66         if (fence < 0)
  67                 return 0;
  68
  69         /*
  70          * Wait initially for 1000 ms, and then wait indefinitely. The SYNC_IOC_WAIT
  71          * documentation states the caller waits indefinitely on the fence if timeout < 0.
  72          */
  73         int err = sync_wait(fence, 1000);
  74         if (err < 0) {
  75                 drv_log("Timed out on sync wait, err = %s\n", strerror(errno));
  76                 err = sync_wait(fence, -1);
  77                 if (err < 0) {
  78                         drv_log("sync wait error = %s\n", strerror(errno));
  79                         return -errno;
  80                 }
  81         }
  82
  83         if (close_fence) {
  84                 err = close(fence);
  85                 if (err) {
  86                         drv_log("Unable to close fence fd, err = %s\n", strerror(errno));
  87                         return -errno;
  88                 }
  89         }
  90
  91         return 0;
  92 }