Android中TextureView和SurfaceView的根本區別

原創 鸡蛋卷啊卷 2020-06-19 11:54

結論

命令： adb shell dumpsys SurfaceFlinger | grep -C40 "Allocated buffers:"

GUI： 不同的圖像進行composite（混合），效率一部分取決於 composite的工具

  1. 應用的Window對應於Layer,Surface，Layer（Surface）內有BufferQueue，BufferQueue內有不定數量的Buffer。
  2. TextureView增加了兩個Buffer，Layer不變
    • 融合採用OpenGLES的composite（混合）
    • OpenGLES 也是有hard（GPU）、soft（CPU）兩種實現方式，Android手機一般都是hard實現
    • 也就是說在Android中TextureView 基本採用GPU composite
  3. SurfaceView是增加Layer
    • 採用HardWareComposite，專用硬件來composite
  4. BufferQueue往往2個buffer

The Hardware Composer (HWC) HAL composites layers received from SurfaceFlinger, reducing the amount of composition OpenGL ES (GLES) and the GPU perform.
The HWC abstracts objects, such as overlays and 2D blitters, to composite surfaces and communicates with specialized window composition hardware to composite windows. Use the HWC to composite windows instead of having SurfaceFlinger composite with the GPU. Most GPUs aren’t optimized for composition, and when the GPU composes layers from SurfaceFlinger, apps can’t use the GPU for their own rendering.

引用文檔

TextureView

從列表Activity，調出入帶有TextureView的Activity， TextureView用於視頻播放（起初不播）

  1. 普通Activity
AppledeMacBook-Pro-8:~ apple$ adb shell dumpsys SurfaceFlinger  | grep -C40 "Allocated buffers:"
    0x7faa81f460: count=-1
    0x7faa81f4b0: count=-1
    0x7faa81f500: count=-1
    0x7faa81f550: count=-1
    0x7faa81f5a0: count=-1
    0x7faa81f640: count=-1
    0x7faae3a670: count=-1
h/w composer state:
  h/w composer present and enabled
Hardware Composer state (version 01050000):
  mDebugForceFakeVSync=0
  Display[0] configurations (* current):
    * 0: 1080x1920, xdpi=403.411011, ydpi=403.040985, refresh=16666666, colorMode=0
  numHwLayers=4, flags=00000000
    type   |  handle  | hint | flag | tr | blnd |   format    |     source crop (l,t,r,b)      |          frame         | name 
-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------
       HWC | 7faa81aae0 | 0002 | 0000 | 00 | 0100 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | com.google.grafika/com.android.grafika.MainActivity
       HWC | 7fa6a47460 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   72.0 |    0,    0, 1080,   72 | StatusBar
       HWC | 7faa81b920 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   42.0 |    0, 1878, 1080, 1920 | UpSlideTransparentView
 FB TARGET | 7faae30f40 | 0000 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | HWC_FRAMEBUFFER_TARGET

-------- Snapdragon Display Manager --------
-----------------------
device type: 0
state: 1, vsync on: 0, max. mixer stages: 4
num configs: 1, active config index: 0
res:1080 x 1920, dpi:403.41 x 403.04, fps:60,vsync period: 16666666

ROI(L T R B) : LEFT(0 0 1080 1920)

|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
| Idx |  Comp Type  |  Split | WB |  Pipe |    W x H    |          Format          |  Src Rect (L T R B) |  Dst Rect (L T R B) |  Z |    Flags   | Deci(HxV) | CS | Range|
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   0 |         SDE | Comp-1 |  - | 0x040 | 1088 x 1920 |           RGBA_8888_UBWC |    0    0 1080 1920 |    0    0 1080 1920 |  0 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   1 |         SDE | Comp-1 |  - | 0x010 | 1088 x   80 |           RGBA_8888_UBWC |    0    0 1080   72 |    0    0 1080   72 |  1 | 0x00000002 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   2 |         SDE | Comp-1 |  - | 0x008 | 1088 x   48 |           RGBA_8888_UBWC |    0    0 1080   42 |    0 1878 1080 1920 |  2 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|

Allocated buffers:
0x7fa6a46aa0: 8160.00 KiB | 1080 (1088) x 1920 |        2 | 0x20000900 | com.android.systemui.ImageWallpaper
0x7fa6a46e00:   42.00 KiB |   66 ( 128) x   84 |        1 | 0x00008933 | Sprite
0x7fa6a47460:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7fa6af6120:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faa81a2a0:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81a660:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81aae0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.MainActivity
0x7faa81b920:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faa81b9e0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x00000900 | 
0x7faa81bb00: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x00000900 | com.google.grafika/com.android.grafika.MainActivity
0x7faae30e80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30ee0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30f40: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
Total allocated (estimate): 58437.00 KB

進入含有TextureView，但TextureView不顯示的Activity

AppledeMacBook-Pro-8:~ apple$ adb shell dumpsys SurfaceFlinger  | grep -C40 "Allocated buffers:"
    0x7faa81f460: count=-1
    0x7faa81f4b0: count=-1
    0x7faa81f500: count=-1
    0x7faa81f550: count=-1
    0x7faa81f5a0: count=-1
    0x7faa81f640: count=-1
    0x7faae3a670: count=-1
h/w composer state:
  h/w composer present and enabled
Hardware Composer state (version 01050000):
  mDebugForceFakeVSync=0
  Display[0] configurations (* current):
    * 0: 1080x1920, xdpi=403.411011, ydpi=403.040985, refresh=16666666, colorMode=0
  numHwLayers=4, flags=00000000
    type   |  handle  | hint | flag | tr | blnd |   format    |     source crop (l,t,r,b)      |          frame         | name 
-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------
       HWC | 7faa81aa80 | 0002 | 0000 | 00 | 0100 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | com.google.grafika/com.android.grafika.PlayMovieActivity
       HWC | 7faa81a660 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   72.0 |    0,    0, 1080,   72 | StatusBar
       HWC | 7faa81b920 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   42.0 |    0, 1878, 1080, 1920 | UpSlideTransparentView
 FB TARGET | 7faae30f40 | 0000 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | HWC_FRAMEBUFFER_TARGET

-------- Snapdragon Display Manager --------
-----------------------
device type: 0
state: 1, vsync on: 0, max. mixer stages: 4
num configs: 1, active config index: 0
res:1080 x 1920, dpi:403.41 x 403.04, fps:60,vsync period: 16666666

ROI(L T R B) : LEFT(0 0 1080 1920)

|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
| Idx |  Comp Type  |  Split | WB |  Pipe |    W x H    |          Format          |  Src Rect (L T R B) |  Dst Rect (L T R B) |  Z |    Flags   | Deci(HxV) | CS | Range|
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   0 |         SDE | Comp-1 |  - | 0x040 | 1088 x 1920 |           RGBA_8888_UBWC |    0    0 1080 1920 |    0    0 1080 1920 |  0 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   1 |         SDE | Comp-1 |  - | 0x010 | 1088 x   80 |           RGBA_8888_UBWC |    0    0 1080   72 |    0    0 1080   72 |  1 | 0x00000002 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   2 |         SDE | Comp-1 |  - | 0x008 | 1088 x   48 |           RGBA_8888_UBWC |    0    0 1080   42 |    0 1878 1080 1920 |  2 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|

Allocated buffers:
0x7fa6a455a0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x00000900 | 
0x7fa6a459c0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieActivity
0x7fa6a46aa0: 8160.00 KiB | 1080 (1088) x 1920 |        2 | 0x20000900 | com.android.systemui.ImageWallpaper
0x7fa6a46e00:   42.00 KiB |   66 ( 128) x   84 |        1 | 0x00008933 | Sprite
0x7fa6a47460:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7fa6af6120:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faa81a2a0:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81a660:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81aa80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieActivity
0x7faa81b920:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faae30e80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30ee0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30f40: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
Total allocated (estimate): 58437.00 KB

顯示TextureView

AppledeMacBook-Pro-8:~ apple$ adb shell dumpsys SurfaceFlinger  | grep -C40 "Allocated buffers:"
    0x7faa81f460: count=-1
    0x7faa81f4b0: count=-1
    0x7faa81f500: count=-1
    0x7faa81f550: count=-1
    0x7faa81f5a0: count=-1
    0x7faa81f640: count=-1
    0x7faae3a670: count=-1
h/w composer state:
  h/w composer present and enabled
Hardware Composer state (version 01050000):
  mDebugForceFakeVSync=0
  Display[0] configurations (* current):
    * 0: 1080x1920, xdpi=403.411011, ydpi=403.040985, refresh=16666666, colorMode=0
  numHwLayers=4, flags=00000000
    type   |  handle  | hint | flag | tr | blnd |   format    |     source crop (l,t,r,b)      |          frame         | name 
-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------
       HWC | 7fa6af64e0 | 0002 | 0000 | 00 | 0100 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | com.google.grafika/com.android.grafika.PlayMovieActivity
       HWC | 7fa6a47460 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   72.0 |    0,    0, 1080,   72 | StatusBar
       HWC | 7faa81b920 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   42.0 |    0, 1878, 1080, 1920 | UpSlideTransparentView
 FB TARGET | 7faae30f40 | 0000 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | HWC_FRAMEBUFFER_TARGET

-------- Snapdragon Display Manager --------
-----------------------
device type: 0
state: 1, vsync on: 0, max. mixer stages: 4
num configs: 1, active config index: 0
res:1080 x 1920, dpi:403.41 x 403.04, fps:60,vsync period: 16666666

ROI(L T R B) : LEFT(0 0 1080 1920)

|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
| Idx |  Comp Type  |  Split | WB |  Pipe |    W x H    |          Format          |  Src Rect (L T R B) |  Dst Rect (L T R B) |  Z |    Flags   | Deci(HxV) | CS | Range|
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   0 |         SDE | Comp-1 |  - | 0x040 | 1088 x 1920 |           RGBA_8888_UBWC |    0    0 1080 1920 |    0    0 1080 1920 |  0 | 0x00000002 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   1 |         SDE | Comp-1 |  - | 0x010 | 1088 x   80 |           RGBA_8888_UBWC |    0    0 1080   72 |    0    0 1080   72 |  1 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   2 |         SDE | Comp-1 |  - | 0x008 | 1088 x   48 |           RGBA_8888_UBWC |    0    0 1080   42 |    0 1878 1080 1920 |  2 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|

Allocated buffers:
0x7fa6a459c0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieActivity
0x7fa6a46aa0: 8160.00 KiB | 1080 (1088) x 1920 |        2 | 0x20000900 | com.android.systemui.ImageWallpaper
0x7fa6a46e00:   42.00 KiB |   66 ( 128) x   84 |        1 | 0x00008933 | Sprite
0x7fa6a47460:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7fa6af6120:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7fa6af64e0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieActivity
0x7faa81a2a0:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81a660:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81aa80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieActivity
0x7faa81b920:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faae30e80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30ee0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30f40: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
Total allocated (estimate): 58437.00 KB

可以看到

  • 普通的Activity，初始化時有兩個buffer，大小相同，即BufferQueue默然含有 2 個buffer
  • 顯示TextureView時，Buffer加了一個Activity的
  • Layer始終保持4個
    • 應用 Activity
    • StatusBar
    • UpSlideTransparentView (不知道幹什麼，但是有)
    • HWC_FRAMEBUFFER_TARGET (屏幕Target)
  • 從最終日誌，可推斷出BufferQueue中分配的Buffer (buffer在BufferQueue的dequeue操作中創建)
    • 應用3個（兩個+TextureView）、StatusBar（3個）、FramebufferSurface （3個）、等等

SurfaceView

從普通列表，跳轉到帶有Surface的Activity，SurfaceView用於播視頻（起初沒有波）

  1. 跳轉到SurfaceActivity
AppledeMacBook-Pro-8:~ apple$ adb shell dumpsys SurfaceFlinger  | grep -C40 "Allocated buffers:"
    0x7faa81f550: count=-1
    0x7faa81f5a0: count=-1
    0x7faa81f640: count=-1
    0x7faae3a670: count=-1
h/w composer state:
  h/w composer present and enabled
Hardware Composer state (version 01050000):
  mDebugForceFakeVSync=0
  Display[0] configurations (* current):
    * 0: 1080x1920, xdpi=403.411011, ydpi=403.040985, refresh=16666666, colorMode=0
  numHwLayers=5, flags=00000000
    type   |  handle  | hint | flag | tr | blnd |   format    |     source crop (l,t,r,b)      |          frame         | name 
-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------
       HWC | 00000000 | 0002 | 80000000 | 00 | 0105 | ? ffffffff  |    0.0,    0.0,   -1.0,   -1.0 |   48,  408, 1032, 1872 | SurfaceView - com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
       HWC | 7faa81ad80 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
       HWC | 7fa6a47460 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   72.0 |    0,    0, 1080,   72 | StatusBar
       HWC | 7faa81b920 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   42.0 |    0, 1878, 1080, 1920 | UpSlideTransparentView
 FB TARGET | 7faae30e80 | 0000 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | HWC_FRAMEBUFFER_TARGET

-------- Snapdragon Display Manager --------
-----------------------
device type: 0
state: 1, vsync on: 0, max. mixer stages: 4
num configs: 1, active config index: 0
res:1080 x 1920, dpi:403.41 x 403.04, fps:60,vsync period: 16666666

ROI(L T R B) : LEFT(0 0 1080 1920)

|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
| Idx |  Comp Type  |  Split | WB |  Pipe |    W x H    |          Format          |  Src Rect (L T R B) |  Dst Rect (L T R B) |  Z |    Flags   | Deci(HxV) | CS | Range|
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   0 |         SDE | Comp-1 |  - | 0x040 |  984 x 1464 |                ARGB_8888 |    0    0  984 1464 |   48  408 1032 1872 |  0 | 0x00000004 |   0 x   0 |  0 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   1 |         SDE | Comp-1 |  - | 0x010 | 1088 x 1920 |           RGBA_8888_UBWC |    0    0 1080 1920 |    0    0 1080 1920 |  1 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   2 |         SDE | Comp-1 |  - | 0x008 | 1088 x   80 |           RGBA_8888_UBWC |    0    0 1080   72 |    0    0 1080   72 |  2 | 0x00000002 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   3 |         SDE | Comp-1 |  - | 0x001 | 1088 x   48 |           RGBA_8888_UBWC |    0    0 1080   42 |    0 1878 1080 1920 |  3 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|

Allocated buffers:
0x7fa6a46aa0: 8160.00 KiB | 1080 (1088) x 1920 |        2 | 0x20000900 | com.android.systemui.ImageWallpaper
0x7fa6a46e00:   42.00 KiB |   66 ( 128) x   84 |        1 | 0x00008933 | Sprite
0x7fa6a47460:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7fa6af6120:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faa81a2a0:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81a600: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
0x7faa81a660:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81ad80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
0x7faa81b920:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faae30e80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30ee0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30f40: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
Total allocated (estimate): 50277.00 KB

可以看到多了一個Layer，SurfaceView - com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity

  1. 運行SurfaceView播視頻
AppledeMacBook-Pro-8:~ apple$ adb shell dumpsys SurfaceFlinger  | grep -C40 "Allocated buffers:"
    0x7faa81f550: count=-1
    0x7faa81f5a0: count=-1
    0x7faa81f640: count=-1
    0x7faae3a670: count=-1
h/w composer state:
  h/w composer present and enabled
Hardware Composer state (version 01050000):
  mDebugForceFakeVSync=0
  Display[0] configurations (* current):
    * 0: 1080x1920, xdpi=403.411011, ydpi=403.040985, refresh=16666666, colorMode=0
  numHwLayers=5, flags=00000000
    type   |  handle  | hint | flag | tr | blnd |   format    |     source crop (l,t,r,b)      |          frame         | name 
-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------
       HWC | 7fa6a47400 | 0002 | 0000 | 00 | 0100 | ? 7fa30c06  |    0.0,    0.0,  320.0,  240.0 |   48,  408, 1032, 1146 | SurfaceView - com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
       HWC | 7faa81a600 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
       HWC | 7fa6a47460 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   72.0 |    0,    0, 1080,   72 | StatusBar
       HWC | 7faa81b920 | 0002 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0,   42.0 |    0, 1878, 1080, 1920 | UpSlideTransparentView
 FB TARGET | 7faae30f40 | 0000 | 0000 | 00 | 0105 | RGBA_8888   |    0.0,    0.0, 1080.0, 1920.0 |    0,    0, 1080, 1920 | HWC_FRAMEBUFFER_TARGET

-------- Snapdragon Display Manager --------
-----------------------
device type: 0
state: 1, vsync on: 0, max. mixer stages: 4
num configs: 1, active config index: 0
res:1080 x 1920, dpi:403.41 x 403.04, fps:60,vsync period: 16666666

ROI(L T R B) : LEFT(0 0 1080 1920)

|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
| Idx |  Comp Type  |  Split | WB |  Pipe |    W x H    |          Format          |  Src Rect (L T R B) |  Dst Rect (L T R B) |  Z |    Flags   | Deci(HxV) | CS | Range|
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   0 |         SDE | Comp-1 |  - | 0x001 |  384 x  256 |    Y_CBCR_420_VENUS_UBWC |    0    0  320  240 |   48  408 1032 1146 |  0 | 0x00000000 |   0 x   0 |  0 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   1 |         SDE | Comp-1 |  - | 0x040 | 1088 x 1920 |           RGBA_8888_UBWC |    0    0 1080 1920 |    0    0 1080 1920 |  1 | 0x00000002 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   2 |         SDE | Comp-1 |  - | 0x010 | 1088 x   80 |           RGBA_8888_UBWC |    0    0 1080   72 |    0    0 1080   72 |  2 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|
|   3 |         SDE | Comp-1 |  - | 0x008 | 1088 x   48 |           RGBA_8888_UBWC |    0    0 1080   42 |    0 1878 1080 1920 |  3 | 0x00000000 |   0 x   0 |  6 |  0 |
|-----|-------------|--------|----|-------|-------------|--------------------------|---------------------|---------------------|----|------------|-----------|----|------|

Allocated buffers:
0x7fa6a46aa0: 8160.00 KiB | 1080 (1088) x 1920 |        2 | 0x20000900 | com.android.systemui.ImageWallpaper
0x7fa6a46c80: unknown     |  320 ( 384) x  240 | 7FA30C06 | 0x02002900 | SurfaceView - com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
0x7fa6a46e00:   42.00 KiB |   66 ( 128) x   84 |        1 | 0x00008933 | Sprite
0x7fa6a47400: unknown     |  320 ( 384) x  240 | 7FA30C06 | 0x02002900 | SurfaceView - com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
0x7fa6a47460:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7fa6af6120:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faa81a2a0:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81a600: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
0x7faa81a660:  306.00 KiB | 1080 (1088) x   72 |        1 | 0x20000900 | StatusBar
0x7faa81ad80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20000900 | com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
0x7faa81b920:  178.50 KiB | 1080 (1088) x   42 |        1 | 0x20000900 | UpSlideTransparentView
0x7faae30e80: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30ee0: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
0x7faae30f40: 8160.00 KiB | 1080 (1088) x 1920 |        1 | 0x20001a00 | FramebufferSurface
Total allocated (estimate): 50277.00 KB

多了兩個SurfaceView的Buffer

0x7fa6a46c80: unknown     |  320 ( 384) x  240 | 7FA30C06 | 0x02002900 | SurfaceView - com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity

0x7fa6a47400: unknown     |  320 ( 384) x  240 | 7FA30C06 | 0x02002900 | SurfaceView - com.google.grafika/com.android.grafika.PlayMovieSurfaceActivity
發表評論
所有評論
還沒有人評論，想成為第一個評論的人麼? 請在上方評論欄輸入並且點擊發布.
相關文章

Android筆記02-真機調式

1、手機打開開發者，並且usb連接電腦 2、打開sdk manager，安裝google usb driver 3、打開設備管理器，更新驅動程序，驅動程序目錄E:\android_sdk\extras\google\usb_driver

原創 2023-10-31 09:11:15

完美解決 Android 滑動衝突！

處理自定義 View 中的滑動衝突 對於大多數 Android 開發來說，處理滑動衝突好像很難，但實戰一下又發現，好像也挺簡單，因爲這個實際上是有套路可循的。基本就兩種方案：外部攔截法 && 內部攔截法。 2.1 外部攔截法 所謂外部攔截法

原創 2023-10-10 02:19:38

Android C++系列：Linux線程（一）概念

{"type":"doc","content":[{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"1. 什麼是線程",

轻口味 2021-12-08 11:33:58

Android無障礙體驗與開發

有着不同無障礙需求的用戶看到或者聽到的Android應用界面也是一種完全不同的交互體驗，使用Google開源的“無障礙體驗”項目來從用戶的視角親身體驗無障礙適配對用戶體驗的影響。在本次專題演講中，你也可以瞭解Google最新發布在Andro

王莹 2021-11-26 09:58:53

Android Studio 的更新

在本次專題演講中，將介紹 Android Studio 的一些新開發工具和功能的最新動態及其演示版，還會示範如何在您的應用開發流程中集成這些工具。 直達 Google 開發者在線課程，收穫 Android 技術乾貨 https://deve

王莹 2021-11-25 10:58:57

拒絕卡頓，揭祕盒馬鮮生 APP Android 短視頻秒播優化方案

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image"

阿里巴巴移动技术 2021-11-24 10:23:56

Android 遊戲開發和結算服務的新特性

Android 遊戲開發工具包 (AGDK) 是一套工具和應用組件，可幫助您開發、優化和發佈優質的 Android 遊戲。 Google Play 結算系統是一項可讓您在 Android 應用中銷售數字產品和內容的服務。 在本次專題演講中，

王莹 2021-11-24 09:58:54

Android TV 與 Google TV 的新特性

在本次專題演講中，我們將向開發者介紹Android TV以及Google TV的新功能和用戶體驗。 直達 Google 開發者在線課程，收穫 Android 技術乾貨 https://developers.google.cn/learn/p

王莹 2021-11-24 09:53:53

Android 12L-針對大屏設備的新特性

Android 大屏設備及摺疊屏設備越來越受到用戶的青睞。在本次專題演講中，我們會向大家介紹 Android 平臺新增的對於大屏應用開發的支持，包括新的 API 和開發庫，以及更新的開發人員指南。 直達 Google 開發者在線課程，收穫

王莹 2021-11-24 09:53:53

Android C++系列：Linux文件IO操作(一)

{"type":"doc","content":[{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"1.1 C標準函數與

轻口味 2021-11-23 18:23:51

Android C++系列：JNI調用時的異常處理

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

轻口味 2021-11-19 10:03:53

2021 Google 開發者大會一覽，同步Android、TensorFlow、Web開發等最新動態

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ

罗燕珊 2021-11-16 19:33:53

Jetpack Compose 佈局詳情

Jetpack Compose 提供了全新的佈局模型，可用於構建美觀流暢的界面。在此講座中，我們將深入介紹佈局模型及其功能和底層工作原理；並詳細說明捆綁式佈局和修飾符的構建方式，以及如何輕鬆創建自定義佈局和修飾符。本講座有助於您理解 Com

谷歌 2021-11-16 15:33:49

Google開發者大會

2021 年 Google 開發者大會以“Develop as One”爲主題，共享 Google 前沿產品資訊與技術趨勢洞見，攜手開發者和合作夥伴激活潛能，共創機遇，共謀發展。

王莹 2021-11-16 12:13:51

爲 Android 12 做好準備

Android 12 是今年剛剛發佈的 Android 新系統版本，它對操作系統的各個方面都做出了很多改進，包括用戶體驗、性能、和隱私。而伴隨着這些改進，也必然會在現有 API 或系統界面方面發生一些行爲變更。 在本次專題演講中，我們會介紹

王莹 2021-11-16 12:13:51