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#ifndef __GRALLOC_MTK_DEFS_H__
#define __GRALLOC_MTK_DEFS_H__
#include <stdint.h>
#include <hardware/gralloc.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
[Important]
Define the MTK specific enumeration values for gralloc usage in order to avoid "polute" AOSP file
(hardware/libhardware/include/hardware/gralloc.h)
The enumeration value definition must not be conflict with the gralloc.h in original AOSP file
*/
enum {
#if 0
/* buffer is never read in software */
GRALLOC_USAGE_SW_READ_NEVER = 0x00000000,
/* buffer is rarely read in software */
GRALLOC_USAGE_SW_READ_RARELY = 0x00000002,
/* buffer is often read in software */
GRALLOC_USAGE_SW_READ_OFTEN = 0x00000003,
/* mask for the software read values */
GRALLOC_USAGE_SW_READ_MASK = 0x0000000F,
/* buffer is never written in software */
GRALLOC_USAGE_SW_WRITE_NEVER = 0x00000000,
/* buffer is rarely written in software */
GRALLOC_USAGE_SW_WRITE_RARELY = 0x00000020,
/* buffer is often written in software */
GRALLOC_USAGE_SW_WRITE_OFTEN = 0x00000030,
/* mask for the software write values */
GRALLOC_USAGE_SW_WRITE_MASK = 0x000000F0,
/* buffer will be used as an OpenGL ES texture */
GRALLOC_USAGE_HW_TEXTURE = 0x00000100,
/* buffer will be used as an OpenGL ES render target */
GRALLOC_USAGE_HW_RENDER = 0x00000200,
/* buffer will be used by the 2D hardware blitter */
GRALLOC_USAGE_HW_2D = 0x00000400,
/* buffer will be used by the HWComposer HAL module */
GRALLOC_USAGE_HW_COMPOSER = 0x00000800,
/* buffer will be used with the framebuffer device */
GRALLOC_USAGE_HW_FB = 0x00001000,
/* buffer will be used with the HW video encoder */
GRALLOC_USAGE_HW_VIDEO_ENCODER = 0x00010000,
/* buffer will be written by the HW camera pipeline */
GRALLOC_USAGE_HW_CAMERA_WRITE = 0x00020000,
/* buffer will be read by the HW camera pipeline */
GRALLOC_USAGE_HW_CAMERA_READ = 0x00040000,
/* buffer will be used as part of zero-shutter-lag queue */
GRALLOC_USAGE_HW_CAMERA_ZSL = 0x00060000,
/* mask for the camera access values */
GRALLOC_USAGE_HW_CAMERA_MASK = 0x00060000,
/* mask for the software usage bit-mask */
GRALLOC_USAGE_HW_MASK = 0x00071F00,
/* buffer will be used as a RenderScript Allocation */
GRALLOC_USAGE_RENDERSCRIPT = 0x00100000,
/* buffer should be displayed full-screen on an external display when
* possible
*/
GRALLOC_USAGE_EXTERNAL_DISP = 0x00002000,
/* Must have a hardware-protected path to external display sink for
* this buffer. If a hardware-protected path is not available, then
* either don't composite only this buffer (preferred) to the
* external sink, or (less desirable) do not route the entire
* composition to the external sink.
*/
GRALLOC_USAGE_PROTECTED = 0x00004000,
/* implementation-specific private usage flags */
GRALLOC_USAGE_PRIVATE_0 = 0x10000000,
GRALLOC_USAGE_PRIVATE_1 = 0x20000000,
GRALLOC_USAGE_PRIVATE_2 = 0x40000000,
GRALLOC_USAGE_PRIVATE_3 = 0x80000000,
GRALLOC_USAGE_PRIVATE_MASK = 0xF0000000,
#endif /// #if 0
/// the following define the extended gralloc enumeration value of
GRALLOC_USAGE_NULL_BUFFER = GRALLOC_USAGE_PRIVATE_3,
GRALLOC_USAGE_SECURE = 0x01000000,
};
#ifdef __cplusplus
}
#endif
#endif /* __GRALLOC_MTK_DEFS_H__ */
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