| Iliyan Malchev | 66ea357 | 2011-05-01 14:05:30 -0700 | [diff] [blame^] | 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 | */ |
| 16 | |
| 17 | #ifndef SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H |
| 18 | #define SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H |
| 19 | |
| 20 | __BEGIN_DECLS |
| 21 | |
| 22 | /** |
| 23 | * pixel format definitions |
| 24 | */ |
| 25 | |
| 26 | enum { |
| 27 | HAL_PIXEL_FORMAT_RGBA_8888 = 1, |
| 28 | HAL_PIXEL_FORMAT_RGBX_8888 = 2, |
| 29 | HAL_PIXEL_FORMAT_RGB_888 = 3, |
| 30 | HAL_PIXEL_FORMAT_RGB_565 = 4, |
| 31 | HAL_PIXEL_FORMAT_BGRA_8888 = 5, |
| 32 | HAL_PIXEL_FORMAT_RGBA_5551 = 6, |
| 33 | HAL_PIXEL_FORMAT_RGBA_4444 = 7, |
| 34 | |
| 35 | /* 0x8 - 0xFF range unavailable */ |
| 36 | |
| 37 | /* |
| 38 | * 0x100 - 0x1FF |
| 39 | * |
| 40 | * This range is reserved for pixel formats that are specific to the HAL |
| 41 | * implementation. Implementations can use any value in this range to |
| 42 | * communicate video pixel formats between their HAL modules. These formats |
| 43 | * must not have an alpha channel. Additionally, an EGLimage created from a |
| 44 | * gralloc buffer of one of these formats must be supported for use with the |
| 45 | * GL_OES_EGL_image_external OpenGL ES extension. |
| 46 | */ |
| 47 | |
| 48 | /* |
| 49 | * Android YUV format: |
| 50 | * |
| 51 | * This format is exposed outside of the HAL to software |
| 52 | * decoders and applications. |
| 53 | * EGLImageKHR must support it in conjunction with the |
| 54 | * OES_EGL_image_external extension. |
| 55 | * |
| 56 | * YV12 is 4:2:0 YCrCb planar format comprised of a WxH Y plane followed |
| 57 | * by (W/2) x (H/2) Cr and Cb planes. |
| 58 | * |
| 59 | * This format assumes |
| 60 | * - an even width |
| 61 | * - an even height |
| 62 | * - a horizontal stride multiple of 16 pixels |
| 63 | * - a vertical stride equal to the height |
| 64 | * |
| 65 | * y_size = stride * height |
| 66 | * c_size = ALIGN(stride/2, 16) * height/2 |
| 67 | * size = y_size + c_size * 2 |
| 68 | * cr_offset = y_size |
| 69 | * cb_offset = y_size + c_size |
| 70 | * |
| 71 | */ |
| 72 | HAL_PIXEL_FORMAT_YV12 = 0x32315659, // YCrCb 4:2:0 Planar |
| 73 | |
| 74 | |
| 75 | |
| 76 | /* Legacy formats (deprecated), used by ImageFormat.java */ |
| 77 | HAL_PIXEL_FORMAT_YCbCr_422_SP = 0x10, // NV16 |
| 78 | HAL_PIXEL_FORMAT_YCrCb_420_SP = 0x11, // NV21 |
| 79 | HAL_PIXEL_FORMAT_YCbCr_422_I = 0x14, // YUY2 |
| 80 | }; |
| 81 | |
| 82 | |
| 83 | /** |
| 84 | * Transformation definitions |
| 85 | * |
| 86 | * IMPORTANT NOTE: |
| 87 | * HAL_TRANSFORM_ROT_90 is applied CLOCKWISE and AFTER HAL_TRANSFORM_FLIP_{H|V}. |
| 88 | * |
| 89 | */ |
| 90 | |
| 91 | enum { |
| 92 | /* flip source image horizontally (around the vertical axis) */ |
| 93 | HAL_TRANSFORM_FLIP_H = 0x01, |
| 94 | /* flip source image vertically (around the horizontal axis)*/ |
| 95 | HAL_TRANSFORM_FLIP_V = 0x02, |
| 96 | /* rotate source image 90 degrees clockwise */ |
| 97 | HAL_TRANSFORM_ROT_90 = 0x04, |
| 98 | /* rotate source image 180 degrees */ |
| 99 | HAL_TRANSFORM_ROT_180 = 0x03, |
| 100 | /* rotate source image 270 degrees clockwise */ |
| 101 | HAL_TRANSFORM_ROT_270 = 0x07, |
| 102 | }; |
| 103 | |
| 104 | __END_DECLS |
| 105 | |
| 106 | #endif /* SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H */ |