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| author | Mathias Agopian <pixelflinger@google.com> | 2010-04-05 16:21:53 -0700 |
|---|---|---|
| committer | Mathias Agopian <mathias@google.com> | 2010-04-20 13:36:29 -0700 |
| commit | 1100c8b9012f511d45a82b25c940c702dadbc39e (patch) | |
| tree | cc9036c63b8ba4f90ccafee0998c6b30f95cbac2 /include/private/surfaceflinger | |
| parent | 8ba40ffed243bd8031f254add91089f5d30ec31d (diff) | |
| download | frameworks_native-1100c8b9012f511d45a82b25c940c702dadbc39e.zip frameworks_native-1100c8b9012f511d45a82b25c940c702dadbc39e.tar.gz frameworks_native-1100c8b9012f511d45a82b25c940c702dadbc39e.tar.bz2 | |
add support for up to 16 buffers per surface
also increase the dirtyregion size from 1 to 6 rectangles.
Overall we now need 27KiB process instead of 4KiB
Change-Id: Iebda5565015158f49d9ca8dbcf55e6ad04855be3
Diffstat (limited to 'include/private/surfaceflinger')
| -rw-r--r-- | include/private/surfaceflinger/SharedBufferStack.h | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/include/private/surfaceflinger/SharedBufferStack.h b/include/private/surfaceflinger/SharedBufferStack.h index 9b5a1e0..3b9768b 100644 --- a/include/private/surfaceflinger/SharedBufferStack.h +++ b/include/private/surfaceflinger/SharedBufferStack.h @@ -58,7 +58,7 @@ namespace android { // When changing these values, the COMPILE_TIME_ASSERT at the end of this // file need to be updated. const unsigned int NUM_LAYERS_MAX = 31; -const unsigned int NUM_BUFFER_MAX = 4; +const unsigned int NUM_BUFFER_MAX = 16; const unsigned int NUM_DISPLAY_MAX = 4; // ---------------------------------------------------------------------------- @@ -69,7 +69,11 @@ class SharedClient; // ---------------------------------------------------------------------------- -// should be 128 bytes (32 longs) +// 4 * (11 + 7 + (1 + 2*NUM_RECT_MAX) * NUM_BUFFER_MAX) * NUM_LAYERS_MAX +// 4 * (11 + 7 + (1 + 2*6)*16) * 31 +// 904 * 31 +// = ~27 KiB (28024) + class SharedBufferStack { friend class SharedClient; @@ -78,8 +82,8 @@ class SharedBufferStack friend class SharedBufferServer; public: - struct FlatRegion { // 12 bytes - static const unsigned int NUM_RECT_MAX = 1; + struct FlatRegion { // 52 bytes = 4 * (1 + 2*N) + static const unsigned int NUM_RECT_MAX = 6; uint32_t count; uint16_t rects[4*NUM_RECT_MAX]; }; @@ -106,9 +110,10 @@ public: volatile int32_t reallocMask; int32_t identity; // surface's identity (const) - int32_t reserved32[9]; + int32_t reserved32[6]; Statistics stats; - FlatRegion dirtyRegion[NUM_BUFFER_MAX]; // 12*4=48 bytes + int32_t reserved; + FlatRegion dirtyRegion[NUM_BUFFER_MAX]; // 832 bytes }; // ---------------------------------------------------------------------------- @@ -349,8 +354,7 @@ struct surface_flinger_cblk_t // 4KB max // --------------------------------------------------------------------------- -COMPILE_TIME_ASSERT(sizeof(SharedClient) <= 4096) -COMPILE_TIME_ASSERT(sizeof(SharedBufferStack) == 128) +COMPILE_TIME_ASSERT(sizeof(SharedClient) <= 32768) COMPILE_TIME_ASSERT(sizeof(surface_flinger_cblk_t) <= 4096) // --------------------------------------------------------------------------- |