| /* |
| * Copyright (C) 2011 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 SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H |
| #define SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * If the HAL needs to create service threads to handle graphics related |
| * tasks, these threads need to run at HAL_PRIORITY_URGENT_DISPLAY priority |
| * if they can block the main rendering thread in any way. |
| * |
| * the priority of the current thread can be set with: |
| * |
| * #include <sys/resource.h> |
| * setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY); |
| * |
| */ |
| |
| #define HAL_PRIORITY_URGENT_DISPLAY (-8) |
| |
| /** |
| * pixel format definitions |
| */ |
| |
| enum { |
| HAL_PIXEL_FORMAT_RGBA_8888 = 1, |
| HAL_PIXEL_FORMAT_RGBX_8888 = 2, |
| HAL_PIXEL_FORMAT_RGB_888 = 3, |
| HAL_PIXEL_FORMAT_RGB_565 = 4, |
| HAL_PIXEL_FORMAT_BGRA_8888 = 5, |
| HAL_PIXEL_FORMAT_RGBA_5551 = 6, |
| HAL_PIXEL_FORMAT_RGBA_4444 = 7, |
| |
| /* 0x8 - 0xFF range unavailable */ |
| |
| /* |
| * 0x100 - 0x1FF |
| * |
| * This range is reserved for pixel formats that are specific to the HAL |
| * implementation. Implementations can use any value in this range to |
| * communicate video pixel formats between their HAL modules. These formats |
| * must not have an alpha channel. Additionally, an EGLimage created from a |
| * gralloc buffer of one of these formats must be supported for use with the |
| * GL_OES_EGL_image_external OpenGL ES extension. |
| */ |
| |
| /* |
| * Android YUV format: |
| * |
| * This format is exposed outside of the HAL to software decoders and |
| * applications. EGLImageKHR must support it in conjunction with the |
| * OES_EGL_image_external extension. |
| * |
| * YV12 is a 4:2:0 YCrCb planar format comprised of a WxH Y plane followed |
| * by (W/2) x (H/2) Cr and Cb planes. |
| * |
| * This format assumes |
| * - an even width |
| * - an even height |
| * - a horizontal stride multiple of 16 pixels |
| * - a vertical stride equal to the height |
| * |
| * y_size = stride * height |
| * c_size = ALIGN(stride/2, 16) * height/2 |
| * size = y_size + c_size * 2 |
| * cr_offset = y_size |
| * cb_offset = y_size + c_size |
| * |
| */ |
| HAL_PIXEL_FORMAT_YV12 = 0x32315659, // YCrCb 4:2:0 Planar |
| |
| |
| |
| /* Legacy formats (deprecated), used by ImageFormat.java */ |
| HAL_PIXEL_FORMAT_YCbCr_422_SP = 0x10, // NV16 |
| HAL_PIXEL_FORMAT_YCrCb_420_SP = 0x11, // NV21 |
| HAL_PIXEL_FORMAT_YCbCr_422_I = 0x14, // YUY2 |
| }; |
| |
| |
| /** |
| * Transformation definitions |
| * |
| * IMPORTANT NOTE: |
| * HAL_TRANSFORM_ROT_90 is applied CLOCKWISE and AFTER HAL_TRANSFORM_FLIP_{H|V}. |
| * |
| */ |
| |
| enum { |
| /* flip source image horizontally (around the vertical axis) */ |
| HAL_TRANSFORM_FLIP_H = 0x01, |
| /* flip source image vertically (around the horizontal axis)*/ |
| HAL_TRANSFORM_FLIP_V = 0x02, |
| /* rotate source image 90 degrees clockwise */ |
| HAL_TRANSFORM_ROT_90 = 0x04, |
| /* rotate source image 180 degrees */ |
| HAL_TRANSFORM_ROT_180 = 0x03, |
| /* rotate source image 270 degrees clockwise */ |
| HAL_TRANSFORM_ROT_270 = 0x07, |
| }; |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H */ |