| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H |
| #define ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H |
| |
| #include <stdint.h> |
| #include <sys/cdefs.h> |
| |
| #include <hardware/gralloc.h> |
| #include <hardware/hardware.h> |
| #include <cutils/native_handle.h> |
| |
| __BEGIN_DECLS |
| |
| /*****************************************************************************/ |
| |
| #define HWC_HEADER_VERSION 1 |
| |
| #define HWC_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1) |
| |
| #define HWC_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION_2(1, 0, HWC_HEADER_VERSION) |
| #define HWC_DEVICE_API_VERSION_1_1 HARDWARE_DEVICE_API_VERSION_2(1, 1, HWC_HEADER_VERSION) |
| #define HWC_DEVICE_API_VERSION_1_2 HARDWARE_DEVICE_API_VERSION_2(1, 2, HWC_HEADER_VERSION) |
| #define HWC_DEVICE_API_VERSION_1_3 HARDWARE_DEVICE_API_VERSION_2(1, 3, HWC_HEADER_VERSION) |
| |
| 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, |
| |
| /* this layer holds the result of compositing the HWC_FRAMEBUFFER layers. |
| * Added in HWC_DEVICE_API_VERSION_1_1. */ |
| HWC_FRAMEBUFFER_TARGET = 3, |
| }; |
| |
| /* |
| * 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 { |
| /* |
| * Must return 1 if the background layer is supported, 0 otherwise. |
| */ |
| HWC_BACKGROUND_LAYER_SUPPORTED = 0, |
| |
| /* |
| * Returns the vsync period in nanoseconds. |
| * |
| * This query is not used for HWC_DEVICE_API_VERSION_1_1 and later. |
| * Instead, the per-display attribute HWC_DISPLAY_VSYNC_PERIOD is used. |
| */ |
| HWC_VSYNC_PERIOD = 1, |
| |
| /* |
| * Availability: HWC_DEVICE_API_VERSION_1_1 |
| * Returns a mask of supported display types. |
| */ |
| HWC_DISPLAY_TYPES_SUPPORTED = 2, |
| }; |
| |
| /* display attributes returned by getDisplayAttributes() */ |
| enum { |
| /* Indicates the end of an attribute list */ |
| HWC_DISPLAY_NO_ATTRIBUTE = 0, |
| |
| /* The vsync period in nanoseconds */ |
| HWC_DISPLAY_VSYNC_PERIOD = 1, |
| |
| /* The number of pixels in the horizontal and vertical directions. */ |
| HWC_DISPLAY_WIDTH = 2, |
| HWC_DISPLAY_HEIGHT = 3, |
| |
| /* The number of pixels per thousand inches of this configuration. |
| * |
| * Scaling DPI by 1000 allows it to be stored in an int without losing |
| * too much precision. |
| * |
| * If the DPI for a configuration is unavailable or the HWC implementation |
| * considers it unreliable, it should set these attributes to zero. |
| */ |
| HWC_DISPLAY_DPI_X = 4, |
| HWC_DISPLAY_DPI_Y = 5, |
| }; |
| |
| /* Allowed events for hwc_methods::eventControl() */ |
| enum { |
| HWC_EVENT_VSYNC = 0 |
| }; |
| |
| /* Display types and associated mask bits. */ |
| enum { |
| HWC_DISPLAY_PRIMARY = 0, |
| HWC_DISPLAY_EXTERNAL = 1, // HDMI, DP, etc. |
| HWC_DISPLAY_VIRTUAL = 2, |
| |
| HWC_NUM_PHYSICAL_DISPLAY_TYPES = 2, |
| HWC_NUM_DISPLAY_TYPES = 3, |
| }; |
| |
| enum { |
| HWC_DISPLAY_PRIMARY_BIT = 1 << HWC_DISPLAY_PRIMARY, |
| HWC_DISPLAY_EXTERNAL_BIT = 1 << HWC_DISPLAY_EXTERNAL, |
| HWC_DISPLAY_VIRTUAL_BIT = 1 << HWC_DISPLAY_VIRTUAL, |
| }; |
| |
| /*****************************************************************************/ |
| |
| __END_DECLS |
| |
| #endif /* ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H */ |