Wed, 31 Dec 2014 06:09:35 +0100
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 /*
2 * Copyright (C) 2011 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 */
17 #ifndef SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H
18 #define SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
24 /*
25 * If the HAL needs to create service threads to handle graphics related
26 * tasks, these threads need to run at HAL_PRIORITY_URGENT_DISPLAY priority
27 * if they can block the main rendering thread in any way.
28 *
29 * the priority of the current thread can be set with:
30 *
31 * #include <sys/resource.h>
32 * setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
33 *
34 */
36 #define HAL_PRIORITY_URGENT_DISPLAY (-8)
38 /**
39 * pixel format definitions
40 */
42 enum {
43 HAL_PIXEL_FORMAT_RGBA_8888 = 1,
44 HAL_PIXEL_FORMAT_RGBX_8888 = 2,
45 HAL_PIXEL_FORMAT_RGB_888 = 3,
46 HAL_PIXEL_FORMAT_RGB_565 = 4,
47 HAL_PIXEL_FORMAT_BGRA_8888 = 5,
48 HAL_PIXEL_FORMAT_RGBA_5551 = 6,
49 HAL_PIXEL_FORMAT_RGBA_4444 = 7,
51 /* 0x8 - 0xFF range unavailable */
53 /*
54 * 0x100 - 0x1FF
55 *
56 * This range is reserved for pixel formats that are specific to the HAL
57 * implementation. Implementations can use any value in this range to
58 * communicate video pixel formats between their HAL modules. These formats
59 * must not have an alpha channel. Additionally, an EGLimage created from a
60 * gralloc buffer of one of these formats must be supported for use with the
61 * GL_OES_EGL_image_external OpenGL ES extension.
62 */
64 /*
65 * Android YUV format:
66 *
67 * This format is exposed outside of the HAL to software decoders and
68 * applications. EGLImageKHR must support it in conjunction with the
69 * OES_EGL_image_external extension.
70 *
71 * YV12 is a 4:2:0 YCrCb planar format comprised of a WxH Y plane followed
72 * by (W/2) x (H/2) Cr and Cb planes.
73 *
74 * This format assumes
75 * - an even width
76 * - an even height
77 * - a horizontal stride multiple of 16 pixels
78 * - a vertical stride equal to the height
79 *
80 * y_size = stride * height
81 * c_size = ALIGN(stride/2, 16) * height/2
82 * size = y_size + c_size * 2
83 * cr_offset = y_size
84 * cb_offset = y_size + c_size
85 *
86 */
87 HAL_PIXEL_FORMAT_YV12 = 0x32315659, // YCrCb 4:2:0 Planar
91 /* Legacy formats (deprecated), used by ImageFormat.java */
92 HAL_PIXEL_FORMAT_YCbCr_422_SP = 0x10, // NV16
93 HAL_PIXEL_FORMAT_YCrCb_420_SP = 0x11, // NV21
94 HAL_PIXEL_FORMAT_YCbCr_422_I = 0x14, // YUY2
95 };
98 /**
99 * Transformation definitions
100 *
101 * IMPORTANT NOTE:
102 * HAL_TRANSFORM_ROT_90 is applied CLOCKWISE and AFTER HAL_TRANSFORM_FLIP_{H|V}.
103 *
104 */
106 enum {
107 /* flip source image horizontally (around the vertical axis) */
108 HAL_TRANSFORM_FLIP_H = 0x01,
109 /* flip source image vertically (around the horizontal axis)*/
110 HAL_TRANSFORM_FLIP_V = 0x02,
111 /* rotate source image 90 degrees clockwise */
112 HAL_TRANSFORM_ROT_90 = 0x04,
113 /* rotate source image 180 degrees */
114 HAL_TRANSFORM_ROT_180 = 0x03,
115 /* rotate source image 270 degrees clockwise */
116 HAL_TRANSFORM_ROT_270 = 0x07,
117 };
119 #ifdef __cplusplus
120 }
121 #endif
123 #endif /* SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H */