Mathias Agopian | e291f71 | 2012-05-13 22:49:06 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H |
| 18 | #define ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H |
| 19 | |
| 20 | #include <stdint.h> |
| 21 | #include <sys/cdefs.h> |
| 22 | |
| 23 | #include <hardware/gralloc.h> |
| 24 | #include <hardware/hardware.h> |
| 25 | #include <cutils/native_handle.h> |
| 26 | |
| 27 | __BEGIN_DECLS |
| 28 | |
| 29 | /*****************************************************************************/ |
| 30 | |
| 31 | #define HWC_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1) |
| 32 | |
| 33 | #define HWC_DEVICE_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION(0, 1) |
| 34 | #define HWC_DEVICE_API_VERSION_0_2 HARDWARE_DEVICE_API_VERSION(0, 2) |
| 35 | #define HWC_DEVICE_API_VERSION_0_3 HARDWARE_DEVICE_API_VERSION(0, 3) |
| 36 | |
| 37 | |
| 38 | enum { |
| 39 | /* hwc_composer_device_t::set failed in EGL */ |
| 40 | HWC_EGL_ERROR = -1 |
| 41 | }; |
| 42 | |
| 43 | /* |
| 44 | * hwc_layer_t::hints values |
| 45 | * Hints are set by the HAL and read by SurfaceFlinger |
| 46 | */ |
| 47 | enum { |
| 48 | /* |
| 49 | * HWC can set the HWC_HINT_TRIPLE_BUFFER hint to indicate to SurfaceFlinger |
| 50 | * that it should triple buffer this layer. Typically HWC does this when |
| 51 | * the layer will be unavailable for use for an extended period of time, |
| 52 | * e.g. if the display will be fetching data directly from the layer and |
| 53 | * the layer can not be modified until after the next set(). |
| 54 | */ |
| 55 | HWC_HINT_TRIPLE_BUFFER = 0x00000001, |
| 56 | |
| 57 | /* |
| 58 | * HWC sets HWC_HINT_CLEAR_FB to tell SurfaceFlinger that it should clear the |
| 59 | * framebuffer with transparent pixels where this layer would be. |
| 60 | * SurfaceFlinger will only honor this flag when the layer has no blending |
| 61 | * |
| 62 | */ |
| 63 | HWC_HINT_CLEAR_FB = 0x00000002 |
| 64 | }; |
| 65 | |
| 66 | /* |
| 67 | * hwc_layer_t::flags values |
| 68 | * Flags are set by SurfaceFlinger and read by the HAL |
| 69 | */ |
| 70 | enum { |
| 71 | /* |
| 72 | * HWC_SKIP_LAYER is set by SurfaceFlnger to indicate that the HAL |
| 73 | * shall not consider this layer for composition as it will be handled |
| 74 | * by SurfaceFlinger (just as if compositionType was set to HWC_OVERLAY). |
| 75 | */ |
| 76 | HWC_SKIP_LAYER = 0x00000001, |
| 77 | }; |
| 78 | |
| 79 | /* |
| 80 | * hwc_layer_t::compositionType values |
| 81 | */ |
| 82 | enum { |
| 83 | /* this layer is to be drawn into the framebuffer by SurfaceFlinger */ |
| 84 | HWC_FRAMEBUFFER = 0, |
| 85 | |
| 86 | /* this layer will be handled in the HWC */ |
| 87 | HWC_OVERLAY = 1, |
| 88 | |
| 89 | /* this is the background layer. it's used to set the background color. |
| 90 | * there is only a single background layer */ |
| 91 | HWC_BACKGROUND = 2, |
| 92 | }; |
| 93 | |
| 94 | /* |
| 95 | * hwc_layer_t::blending values |
| 96 | */ |
| 97 | enum { |
| 98 | /* no blending */ |
| 99 | HWC_BLENDING_NONE = 0x0100, |
| 100 | |
| 101 | /* ONE / ONE_MINUS_SRC_ALPHA */ |
| 102 | HWC_BLENDING_PREMULT = 0x0105, |
| 103 | |
| 104 | /* SRC_ALPHA / ONE_MINUS_SRC_ALPHA */ |
| 105 | HWC_BLENDING_COVERAGE = 0x0405 |
| 106 | }; |
| 107 | |
| 108 | /* |
| 109 | * hwc_layer_t::transform values |
| 110 | */ |
| 111 | enum { |
| 112 | /* flip source image horizontally */ |
| 113 | HWC_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H, |
| 114 | /* flip source image vertically */ |
| 115 | HWC_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V, |
| 116 | /* rotate source image 90 degrees clock-wise */ |
| 117 | HWC_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90, |
| 118 | /* rotate source image 180 degrees */ |
| 119 | HWC_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180, |
| 120 | /* rotate source image 270 degrees clock-wise */ |
| 121 | HWC_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270, |
| 122 | }; |
| 123 | |
| 124 | /* attributes queriable with query() */ |
| 125 | enum { |
| 126 | /* |
| 127 | * availability: HWC_DEVICE_API_VERSION_0_2 |
| 128 | * must return 1 if the background layer is supported, 0 otherwise |
| 129 | */ |
| 130 | HWC_BACKGROUND_LAYER_SUPPORTED = 0, |
| 131 | |
| 132 | /* |
| 133 | * availability: HWC_DEVICE_API_VERSION_0_3 |
| 134 | * returns the vsync period in nanosecond |
| 135 | */ |
| 136 | HWC_VSYNC_PERIOD = 1, |
| 137 | }; |
| 138 | |
| 139 | /* Allowed events for hwc_methods::eventControl() */ |
| 140 | enum { |
| 141 | HWC_EVENT_VSYNC = 0 |
| 142 | }; |
| 143 | |
| 144 | /*****************************************************************************/ |
| 145 | |
| 146 | __END_DECLS |
| 147 | |
| 148 | #endif /* ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H */ |