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split hwcomposer.h

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hwcomposer_defs.h now contains enums, which are essentially names.
This won't change when we rev the h/w composer API (new ones will be added instead).

we do this to avoid having to abstract all these constants in higher
level APIs; instead hwcomposer_defs.h can be included without exposing
the hwcomposer's data structures (which are a lot more fragile wrt.
backward compatibility)

Change-Id: Ifb514f64de02a599fdd2d31c188327209ccb0ffc
This commit is contained in:
Mathias Agopian
2012-05-13 22:49:06 -07:00
parent a3e364144c
commit e291f71e0a
2 changed files with 150 additions and 112 deletions
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114
include/hardware/hwcomposer.h
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@@ -24,16 +24,12 @@
#include <hardware/hardware.h>
#include <cutils/native_handle.h>
#include <hardware/hwcomposer_defs.h>
__BEGIN_DECLS
/*****************************************************************************/
#define HWC_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
#define HWC_DEVICE_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION(0, 1)
#define HWC_DEVICE_API_VERSION_0_2 HARDWARE_DEVICE_API_VERSION(0, 2)
#define HWC_DEVICE_API_VERSION_0_3 HARDWARE_DEVICE_API_VERSION(0, 3)
// for compatibility
#define HWC_MODULE_API_VERSION HWC_MODULE_API_VERSION_0_1
#define HWC_DEVICE_API_VERSION HWC_DEVICE_API_VERSION_0_1
@@ -50,112 +46,6 @@ __BEGIN_DECLS
#define HWC_HARDWARE_COMPOSER "composer"
enum {
/* hwc_composer_device_t::set failed in EGL */
HWC_EGL_ERROR = -1
};
/*
* hwc_layer_t::hints values
* Hints are set by the HAL and read by SurfaceFlinger
*/
enum {
/*
* HWC can set the HWC_HINT_TRIPLE_BUFFER hint to indicate to SurfaceFlinger
* that it should triple buffer this layer. Typically HWC does this when
* the layer will be unavailable for use for an extended period of time,
* e.g. if the display will be fetching data directly from the layer and
* the layer can not be modified until after the next set().
*/
HWC_HINT_TRIPLE_BUFFER = 0x00000001,
/*
* HWC sets HWC_HINT_CLEAR_FB to tell SurfaceFlinger that it should clear the
* framebuffer with transparent pixels where this layer would be.
* SurfaceFlinger will only honor this flag when the layer has no blending
*
*/
HWC_HINT_CLEAR_FB = 0x00000002
};
/*
* hwc_layer_t::flags values
* Flags are set by SurfaceFlinger and read by the HAL
*/
enum {
/*
* HWC_SKIP_LAYER is set by SurfaceFlnger to indicate that the HAL
* shall not consider this layer for composition as it will be handled
* by SurfaceFlinger (just as if compositionType was set to HWC_OVERLAY).
*/
HWC_SKIP_LAYER = 0x00000001,
};
/*
* hwc_layer_t::compositionType values
*/
enum {
/* this layer is to be drawn into the framebuffer by SurfaceFlinger */
HWC_FRAMEBUFFER = 0,
/* this layer will be handled in the HWC */
HWC_OVERLAY = 1,
/* this is the background layer. it's used to set the background color.
* there is only a single background layer */
HWC_BACKGROUND = 2,
};
/*
* hwc_layer_t::blending values
*/
enum {
/* no blending */
HWC_BLENDING_NONE = 0x0100,
/* ONE / ONE_MINUS_SRC_ALPHA */
HWC_BLENDING_PREMULT = 0x0105,
/* SRC_ALPHA / ONE_MINUS_SRC_ALPHA */
HWC_BLENDING_COVERAGE = 0x0405
};
/*
* hwc_layer_t::transform values
*/
enum {
/* flip source image horizontally */
HWC_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H,
/* flip source image vertically */
HWC_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V,
/* rotate source image 90 degrees clock-wise */
HWC_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90,
/* rotate source image 180 degrees */
HWC_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180,
/* rotate source image 270 degrees clock-wise */
HWC_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270,
};
/* attributes queriable with query() */
enum {
/*
* availability: HWC_DEVICE_API_VERSION_0_2
* must return 1 if the background layer is supported, 0 otherwise
*/
HWC_BACKGROUND_LAYER_SUPPORTED = 0,
/*
* availability: HWC_DEVICE_API_VERSION_0_3
* returns the vsync period in nanosecond
*/
HWC_VSYNC_PERIOD = 1,
};
/* Allowed events for hwc_methods::eventControl() */
enum {
HWC_EVENT_VSYNC = 0
};
struct hwc_composer_device;
/*