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libui: add ability to force a framebuffer format for EGL's use

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This does not actually change the framebuffer format. It merely
fakes this format to surfaceflinger so that when it creates
framebuffer surfaces it will use this format. It's really a giant
HACK to allow interworking with buggy gralloc+GPU driver
implementations. You should *NEVER* need to set this for shipping
devices.

Change-Id: I03eeb5b4d72838ef219df386ecc489fc20ab9cc7
Signed-off-by: Dima Zavin <dima@android.com>
This commit is contained in:
Dima Zavin 2012-02-22 14:37:57 -08:00
parent 6861d94d4c
commit c6cd27cbf3
2 changed files with 16 additions and 0 deletions
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4
libs/ui/Android.mk
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@ -32,6 +32,10 @@ LOCAL_SHARED_LIBRARIES := \
libpixelflinger \
libhardware
ifneq ($(BOARD_FRAMEBUFFER_FORCE_FORMAT),)
LOCAL_CFLAGS += -DFRAMEBUFFER_FORCE_FORMAT=$(BOARD_FRAMEBUFFER_FORCE_FORMAT)
endif
LOCAL_MODULE:= libui
include $(BUILD_SHARED_LIBRARY)

12
libs/ui/FramebufferNativeWindow.cpp
View File

@ -100,6 +100,18 @@ FramebufferNativeWindow::FramebufferNativeWindow()
mNumFreeBuffers = NUM_FRAME_BUFFERS;
mBufferHead = mNumBuffers-1;
/*
* This does not actually change the framebuffer format. It merely
* fakes this format to surfaceflinger so that when it creates
* framebuffer surfaces it will use this format. It's really a giant
* HACK to allow interworking with buggy gralloc+GPU driver
* implementations. You should *NEVER* need to set this for shipping
* devices.
*/
#ifdef FRAMEBUFFER_FORCE_FORMAT
*((uint32_t *)&fbDev->format) = FRAMEBUFFER_FORCE_FORMAT;
#endif
for (i = 0; i < mNumBuffers; i++)
{
buffers[i] = new NativeBuffer(