1088 lines
39 KiB
C
1088 lines
39 KiB
C
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H
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#define SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H
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#include <stddef.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* If the HAL needs to create service threads to handle graphics related
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* tasks, these threads need to run at HAL_PRIORITY_URGENT_DISPLAY priority
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* if they can block the main rendering thread in any way.
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*
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* the priority of the current thread can be set with:
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*
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* #include <sys/resource.h>
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* setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
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*
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*/
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#define HAL_PRIORITY_URGENT_DISPLAY (-8)
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/**
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* pixel format definitions
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*/
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typedef enum android_pixel_format {
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/*
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* "linear" color pixel formats:
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*
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* When used with ANativeWindow, the dataSpace field describes the color
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* space of the buffer.
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*
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* The color space determines, for example, if the formats are linear or
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* gamma-corrected; or whether any special operations are performed when
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* reading or writing into a buffer in one of these formats.
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*/
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HAL_PIXEL_FORMAT_RGBA_8888 = 1,
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HAL_PIXEL_FORMAT_RGBX_8888 = 2,
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HAL_PIXEL_FORMAT_RGB_888 = 3,
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HAL_PIXEL_FORMAT_RGB_565 = 4,
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HAL_PIXEL_FORMAT_BGRA_8888 = 5,
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/*
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* 0x100 - 0x1FF
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*
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* This range is reserved for pixel formats that are specific to the HAL
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* implementation. Implementations can use any value in this range to
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* communicate video pixel formats between their HAL modules. These formats
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* must not have an alpha channel. Additionally, an EGLimage created from a
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* gralloc buffer of one of these formats must be supported for use with the
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* GL_OES_EGL_image_external OpenGL ES extension.
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*/
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/*
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* Android YUV format:
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*
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* This format is exposed outside of the HAL to software decoders and
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* applications. EGLImageKHR must support it in conjunction with the
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* OES_EGL_image_external extension.
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*
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* YV12 is a 4:2:0 YCrCb planar format comprised of a WxH Y plane followed
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* by (W/2) x (H/2) Cr and Cb planes.
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*
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* This format assumes
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* - an even width
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* - an even height
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* - a horizontal stride multiple of 16 pixels
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* - a vertical stride equal to the height
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*
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* y_size = stride * height
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* c_stride = ALIGN(stride/2, 16)
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* c_size = c_stride * height/2
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* size = y_size + c_size * 2
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* cr_offset = y_size
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* cb_offset = y_size + c_size
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*
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* When used with ANativeWindow, the dataSpace field describes the color
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* space of the buffer.
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*/
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HAL_PIXEL_FORMAT_YV12 = 0x32315659, // YCrCb 4:2:0 Planar
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/*
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* Android Y8 format:
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*
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* This format is exposed outside of the HAL to the framework.
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* The expected gralloc usage flags are SW_* and HW_CAMERA_*,
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* and no other HW_ flags will be used.
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*
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* Y8 is a YUV planar format comprised of a WxH Y plane,
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* with each pixel being represented by 8 bits.
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*
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* It is equivalent to just the Y plane from YV12.
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*
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* This format assumes
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* - an even width
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* - an even height
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* - a horizontal stride multiple of 16 pixels
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* - a vertical stride equal to the height
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*
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* size = stride * height
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*
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* When used with ANativeWindow, the dataSpace field describes the color
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* space of the buffer.
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*/
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HAL_PIXEL_FORMAT_Y8 = 0x20203859,
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/*
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* Android Y16 format:
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*
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* This format is exposed outside of the HAL to the framework.
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* The expected gralloc usage flags are SW_* and HW_CAMERA_*,
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* and no other HW_ flags will be used.
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*
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* Y16 is a YUV planar format comprised of a WxH Y plane,
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* with each pixel being represented by 16 bits.
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*
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* It is just like Y8, but has double the bits per pixel (little endian).
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*
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* This format assumes
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* - an even width
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* - an even height
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* - a horizontal stride multiple of 16 pixels
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* - a vertical stride equal to the height
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* - strides are specified in pixels, not in bytes
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*
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* size = stride * height * 2
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*
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* When used with ANativeWindow, the dataSpace field describes the color
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* space of the buffer, except that dataSpace field
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* HAL_DATASPACE_DEPTH indicates that this buffer contains a depth
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* image where each sample is a distance value measured by a depth camera,
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* plus an associated confidence value.
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*/
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HAL_PIXEL_FORMAT_Y16 = 0x20363159,
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/*
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* Android RAW sensor format:
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*
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* This format is exposed outside of the camera HAL to applications.
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*
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* RAW16 is a single-channel, 16-bit, little endian format, typically
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* representing raw Bayer-pattern images from an image sensor, with minimal
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* processing.
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*
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* The exact pixel layout of the data in the buffer is sensor-dependent, and
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* needs to be queried from the camera device.
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*
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* Generally, not all 16 bits are used; more common values are 10 or 12
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* bits. If not all bits are used, the lower-order bits are filled first.
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* All parameters to interpret the raw data (black and white points,
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* color space, etc) must be queried from the camera device.
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*
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* This format assumes
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* - an even width
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* - an even height
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* - a horizontal stride multiple of 16 pixels
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* - a vertical stride equal to the height
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* - strides are specified in pixels, not in bytes
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*
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* size = stride * height * 2
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*
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* This format must be accepted by the gralloc module when used with the
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* following usage flags:
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* - GRALLOC_USAGE_HW_CAMERA_*
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* - GRALLOC_USAGE_SW_*
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* - GRALLOC_USAGE_RENDERSCRIPT
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*
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* When used with ANativeWindow, the dataSpace should be
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* HAL_DATASPACE_ARBITRARY, as raw image sensor buffers require substantial
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* extra metadata to define.
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*/
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HAL_PIXEL_FORMAT_RAW16 = 0x20,
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/*
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* Android RAW10 format:
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*
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* This format is exposed outside of the camera HAL to applications.
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*
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* RAW10 is a single-channel, 10-bit per pixel, densely packed in each row,
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* unprocessed format, usually representing raw Bayer-pattern images coming from
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* an image sensor.
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*
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* In an image buffer with this format, starting from the first pixel of each
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* row, each 4 consecutive pixels are packed into 5 bytes (40 bits). Each one
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* of the first 4 bytes contains the top 8 bits of each pixel, The fifth byte
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* contains the 2 least significant bits of the 4 pixels, the exact layout data
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* for each 4 consecutive pixels is illustrated below (Pi[j] stands for the jth
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* bit of the ith pixel):
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*
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* bit 7 bit 0
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* =====|=====|=====|=====|=====|=====|=====|=====|
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* Byte 0: |P0[9]|P0[8]|P0[7]|P0[6]|P0[5]|P0[4]|P0[3]|P0[2]|
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* |-----|-----|-----|-----|-----|-----|-----|-----|
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* Byte 1: |P1[9]|P1[8]|P1[7]|P1[6]|P1[5]|P1[4]|P1[3]|P1[2]|
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* |-----|-----|-----|-----|-----|-----|-----|-----|
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* Byte 2: |P2[9]|P2[8]|P2[7]|P2[6]|P2[5]|P2[4]|P2[3]|P2[2]|
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* |-----|-----|-----|-----|-----|-----|-----|-----|
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* Byte 3: |P3[9]|P3[8]|P3[7]|P3[6]|P3[5]|P3[4]|P3[3]|P3[2]|
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* |-----|-----|-----|-----|-----|-----|-----|-----|
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* Byte 4: |P3[1]|P3[0]|P2[1]|P2[0]|P1[1]|P1[0]|P0[1]|P0[0]|
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* ===============================================
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*
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* This format assumes
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* - a width multiple of 4 pixels
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* - an even height
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* - a vertical stride equal to the height
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* - strides are specified in bytes, not in pixels
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*
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* size = stride * height
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*
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* When stride is equal to width * (10 / 8), there will be no padding bytes at
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* the end of each row, the entire image data is densely packed. When stride is
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* larger than width * (10 / 8), padding bytes will be present at the end of each
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* row (including the last row).
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*
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* This format must be accepted by the gralloc module when used with the
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* following usage flags:
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* - GRALLOC_USAGE_HW_CAMERA_*
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* - GRALLOC_USAGE_SW_*
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* - GRALLOC_USAGE_RENDERSCRIPT
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*
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* When used with ANativeWindow, the dataSpace field should be
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* HAL_DATASPACE_ARBITRARY, as raw image sensor buffers require substantial
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* extra metadata to define.
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*/
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HAL_PIXEL_FORMAT_RAW10 = 0x25,
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/*
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* Android RAW12 format:
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*
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* This format is exposed outside of camera HAL to applications.
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*
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* RAW12 is a single-channel, 12-bit per pixel, densely packed in each row,
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* unprocessed format, usually representing raw Bayer-pattern images coming from
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* an image sensor.
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*
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* In an image buffer with this format, starting from the first pixel of each
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* row, each two consecutive pixels are packed into 3 bytes (24 bits). The first
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* and second byte contains the top 8 bits of first and second pixel. The third
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* byte contains the 4 least significant bits of the two pixels, the exact layout
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* data for each two consecutive pixels is illustrated below (Pi[j] stands for
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* the jth bit of the ith pixel):
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*
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* bit 7 bit 0
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* ======|======|======|======|======|======|======|======|
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* Byte 0: |P0[11]|P0[10]|P0[ 9]|P0[ 8]|P0[ 7]|P0[ 6]|P0[ 5]|P0[ 4]|
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* |------|------|------|------|------|------|------|------|
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* Byte 1: |P1[11]|P1[10]|P1[ 9]|P1[ 8]|P1[ 7]|P1[ 6]|P1[ 5]|P1[ 4]|
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* |------|------|------|------|------|------|------|------|
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* Byte 2: |P1[ 3]|P1[ 2]|P1[ 1]|P1[ 0]|P0[ 3]|P0[ 2]|P0[ 1]|P0[ 0]|
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* =======================================================
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*
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* This format assumes:
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* - a width multiple of 4 pixels
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* - an even height
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* - a vertical stride equal to the height
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* - strides are specified in bytes, not in pixels
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*
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* size = stride * height
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*
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* When stride is equal to width * (12 / 8), there will be no padding bytes at
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* the end of each row, the entire image data is densely packed. When stride is
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* larger than width * (12 / 8), padding bytes will be present at the end of
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* each row (including the last row).
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*
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* This format must be accepted by the gralloc module when used with the
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* following usage flags:
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* - GRALLOC_USAGE_HW_CAMERA_*
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* - GRALLOC_USAGE_SW_*
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* - GRALLOC_USAGE_RENDERSCRIPT
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*
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* When used with ANativeWindow, the dataSpace field should be
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* HAL_DATASPACE_ARBITRARY, as raw image sensor buffers require substantial
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* extra metadata to define.
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*/
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HAL_PIXEL_FORMAT_RAW12 = 0x26,
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/*
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* Android opaque RAW format:
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*
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* This format is exposed outside of the camera HAL to applications.
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*
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* RAW_OPAQUE is a format for unprocessed raw image buffers coming from an
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* image sensor. The actual structure of buffers of this format is
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* implementation-dependent.
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*
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* This format must be accepted by the gralloc module when used with the
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* following usage flags:
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* - GRALLOC_USAGE_HW_CAMERA_*
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* - GRALLOC_USAGE_SW_*
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* - GRALLOC_USAGE_RENDERSCRIPT
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*
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* When used with ANativeWindow, the dataSpace field should be
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* HAL_DATASPACE_ARBITRARY, as raw image sensor buffers require substantial
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* extra metadata to define.
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*/
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HAL_PIXEL_FORMAT_RAW_OPAQUE = 0x24,
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/*
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* Android binary blob graphics buffer format:
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*
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* This format is used to carry task-specific data which does not have a
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* standard image structure. The details of the format are left to the two
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* endpoints.
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*
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* A typical use case is for transporting JPEG-compressed images from the
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* Camera HAL to the framework or to applications.
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*
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* Buffers of this format must have a height of 1, and width equal to their
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* size in bytes.
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*
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* When used with ANativeWindow, the mapping of the dataSpace field to
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* buffer contents for BLOB is as follows:
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*
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* dataSpace value | Buffer contents
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* -------------------------------+-----------------------------------------
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* HAL_DATASPACE_JFIF | An encoded JPEG image
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* HAL_DATASPACE_DEPTH | An android_depth_points buffer
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* Other | Unsupported
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*
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*/
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HAL_PIXEL_FORMAT_BLOB = 0x21,
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/*
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* Android format indicating that the choice of format is entirely up to the
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* device-specific Gralloc implementation.
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*
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* The Gralloc implementation should examine the usage bits passed in when
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* allocating a buffer with this format, and it should derive the pixel
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* format from those usage flags. This format will never be used with any
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* of the GRALLOC_USAGE_SW_* usage flags.
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*
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* If a buffer of this format is to be used as an OpenGL ES texture, the
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* framework will assume that sampling the texture will always return an
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* alpha value of 1.0 (i.e. the buffer contains only opaque pixel values).
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*
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* When used with ANativeWindow, the dataSpace field describes the color
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* space of the buffer.
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*/
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HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED = 0x22,
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/*
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* Android flexible YCbCr 4:2:0 formats
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*
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* This format allows platforms to use an efficient YCbCr/YCrCb 4:2:0
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* buffer layout, while still describing the general format in a
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* layout-independent manner. While called YCbCr, it can be
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* used to describe formats with either chromatic ordering, as well as
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* whole planar or semiplanar layouts.
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*
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* struct android_ycbcr (below) is the the struct used to describe it.
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*
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* This format must be accepted by the gralloc module when
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* USAGE_SW_WRITE_* or USAGE_SW_READ_* are set.
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*
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* This format is locked for use by gralloc's (*lock_ycbcr) method, and
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* locking with the (*lock) method will return an error.
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*
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* When used with ANativeWindow, the dataSpace field describes the color
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* space of the buffer.
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*/
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HAL_PIXEL_FORMAT_YCbCr_420_888 = 0x23,
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/*
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* Android flexible YCbCr 4:2:2 formats
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*
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* This format allows platforms to use an efficient YCbCr/YCrCb 4:2:2
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* buffer layout, while still describing the general format in a
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* layout-independent manner. While called YCbCr, it can be
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* used to describe formats with either chromatic ordering, as well as
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* whole planar or semiplanar layouts.
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*
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* This format is currently only used by SW readable buffers
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* produced by MediaCodecs, so the gralloc module can ignore this format.
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*/
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HAL_PIXEL_FORMAT_YCbCr_422_888 = 0x27,
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/*
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* Android flexible YCbCr 4:4:4 formats
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*
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* This format allows platforms to use an efficient YCbCr/YCrCb 4:4:4
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* buffer layout, while still describing the general format in a
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* layout-independent manner. While called YCbCr, it can be
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* used to describe formats with either chromatic ordering, as well as
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* whole planar or semiplanar layouts.
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*
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* This format is currently only used by SW readable buffers
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* produced by MediaCodecs, so the gralloc module can ignore this format.
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*/
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HAL_PIXEL_FORMAT_YCbCr_444_888 = 0x28,
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/*
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* Android flexible RGB 888 formats
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*
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* This format allows platforms to use an efficient RGB/BGR/RGBX/BGRX
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* buffer layout, while still describing the general format in a
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* layout-independent manner. While called RGB, it can be
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* used to describe formats with either color ordering and optional
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* padding, as well as whole planar layout.
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*
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* This format is currently only used by SW readable buffers
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* produced by MediaCodecs, so the gralloc module can ignore this format.
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*/
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HAL_PIXEL_FORMAT_FLEX_RGB_888 = 0x29,
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|
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/*
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* Android flexible RGBA 8888 formats
|
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*
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* This format allows platforms to use an efficient RGBA/BGRA/ARGB/ABGR
|
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* buffer layout, while still describing the general format in a
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* layout-independent manner. While called RGBA, it can be
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* used to describe formats with any of the component orderings, as
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* well as whole planar layout.
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*
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* This format is currently only used by SW readable buffers
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* produced by MediaCodecs, so the gralloc module can ignore this format.
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*/
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HAL_PIXEL_FORMAT_FLEX_RGBA_8888 = 0x2A,
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/* Legacy formats (deprecated), used by ImageFormat.java */
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HAL_PIXEL_FORMAT_YCbCr_422_SP = 0x10, // NV16
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HAL_PIXEL_FORMAT_YCrCb_420_SP = 0x11, // NV21
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HAL_PIXEL_FORMAT_YCbCr_422_I = 0x14, // YUY2
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} android_pixel_format_t;
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|
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/*
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* Structure for describing YCbCr formats for consumption by applications.
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* This is used with HAL_PIXEL_FORMAT_YCbCr_*_888.
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*
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* Buffer chroma subsampling is defined in the format.
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* e.g. HAL_PIXEL_FORMAT_YCbCr_420_888 has subsampling 4:2:0.
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*
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* Buffers must have a 8 bit depth.
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*
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* @y, @cb, and @cr point to the first byte of their respective planes.
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*
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* Stride describes the distance in bytes from the first value of one row of
|
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* the image to the first value of the next row. It includes the width of the
|
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* image plus padding.
|
|
* @ystride is the stride of the luma plane.
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* @cstride is the stride of the chroma planes.
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*
|
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* @chroma_step is the distance in bytes from one chroma pixel value to the
|
|
* next. This is 2 bytes for semiplanar (because chroma values are interleaved
|
|
* and each chroma value is one byte) and 1 for planar.
|
|
*/
|
|
|
|
struct android_ycbcr {
|
|
void *y;
|
|
void *cb;
|
|
void *cr;
|
|
size_t ystride;
|
|
size_t cstride;
|
|
size_t chroma_step;
|
|
|
|
/** reserved for future use, set to 0 by gralloc's (*lock_ycbcr)() */
|
|
uint32_t reserved[8];
|
|
};
|
|
|
|
/**
|
|
* Structure used to define depth point clouds for format HAL_PIXEL_FORMAT_BLOB
|
|
* with dataSpace value of HAL_DATASPACE_DEPTH.
|
|
* When locking a native buffer of the above format and dataSpace value,
|
|
* the vaddr pointer can be cast to this structure.
|
|
*
|
|
* A variable-length list of (x,y,z, confidence) 3D points, as floats. (x, y,
|
|
* z) represents a measured point's position, with the coordinate system defined
|
|
* by the data source. Confidence represents the estimated likelihood that this
|
|
* measurement is correct. It is between 0.f and 1.f, inclusive, with 1.f ==
|
|
* 100% confidence.
|
|
*
|
|
* @num_points is the number of points in the list
|
|
*
|
|
* @xyz_points is the flexible array of floating-point values.
|
|
* It contains (num_points) * 4 floats.
|
|
*
|
|
* For example:
|
|
* android_depth_points d = get_depth_buffer();
|
|
* struct {
|
|
* float x; float y; float z; float confidence;
|
|
* } firstPoint, lastPoint;
|
|
*
|
|
* firstPoint.x = d.xyzc_points[0];
|
|
* firstPoint.y = d.xyzc_points[1];
|
|
* firstPoint.z = d.xyzc_points[2];
|
|
* firstPoint.confidence = d.xyzc_points[3];
|
|
* lastPoint.x = d.xyzc_points[(d.num_points - 1) * 4 + 0];
|
|
* lastPoint.y = d.xyzc_points[(d.num_points - 1) * 4 + 1];
|
|
* lastPoint.z = d.xyzc_points[(d.num_points - 1) * 4 + 2];
|
|
* lastPoint.confidence = d.xyzc_points[(d.num_points - 1) * 4 + 3];
|
|
*/
|
|
|
|
struct android_depth_points {
|
|
uint32_t num_points;
|
|
|
|
/** reserved for future use, set to 0 by gralloc's (*lock)() */
|
|
uint32_t reserved[8];
|
|
|
|
float xyzc_points[];
|
|
};
|
|
|
|
/**
|
|
* Transformation definitions
|
|
*
|
|
* IMPORTANT NOTE:
|
|
* HAL_TRANSFORM_ROT_90 is applied CLOCKWISE and AFTER HAL_TRANSFORM_FLIP_{H|V}.
|
|
*
|
|
*/
|
|
|
|
typedef enum android_transform {
|
|
/* 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,
|
|
/* don't use. see system/window.h */
|
|
HAL_TRANSFORM_RESERVED = 0x08,
|
|
} android_transform_t;
|
|
|
|
/**
|
|
* Dataspace Definitions
|
|
* ======================
|
|
*
|
|
* Dataspace is the definition of how pixel values should be interpreted.
|
|
*
|
|
* For many formats, this is the colorspace of the image data, which includes
|
|
* primaries (including white point) and the transfer characteristic function,
|
|
* which describes both gamma curve and numeric range (within the bit depth).
|
|
*
|
|
* Other dataspaces include depth measurement data from a depth camera.
|
|
*
|
|
* A dataspace is comprised of a number of fields.
|
|
*
|
|
* Version
|
|
* --------
|
|
* The top 2 bits represent the revision of the field specification. This is
|
|
* currently always 0.
|
|
*
|
|
*
|
|
* bits 31-30 29 - 0
|
|
* +-----+----------------------------------------------------+
|
|
* fields | Rev | Revision specific fields |
|
|
* +-----+----------------------------------------------------+
|
|
*
|
|
* Field layout for version = 0:
|
|
* ----------------------------
|
|
*
|
|
* A dataspace is comprised of the following fields:
|
|
* Standard
|
|
* Transfer function
|
|
* Range
|
|
*
|
|
* bits 31-30 29-27 26 - 22 21 - 16 15 - 0
|
|
* +-----+-----+--------+--------+----------------------------+
|
|
* fields | 0 |Range|Transfer|Standard| Legacy and custom |
|
|
* +-----+-----+--------+--------+----------------------------+
|
|
* VV RRR TTTTT SSSSSS LLLLLLLL LLLLLLLL
|
|
*
|
|
* If range, transfer and standard fields are all 0 (e.g. top 16 bits are
|
|
* all zeroes), the bottom 16 bits contain either a legacy dataspace value,
|
|
* or a custom value.
|
|
*/
|
|
|
|
typedef enum android_dataspace {
|
|
/*
|
|
* Default-assumption data space, when not explicitly specified.
|
|
*
|
|
* It is safest to assume the buffer is an image with sRGB primaries and
|
|
* encoding ranges, but the consumer and/or the producer of the data may
|
|
* simply be using defaults. No automatic gamma transform should be
|
|
* expected, except for a possible display gamma transform when drawn to a
|
|
* screen.
|
|
*/
|
|
HAL_DATASPACE_UNKNOWN = 0x0,
|
|
|
|
/*
|
|
* Arbitrary dataspace with manually defined characteristics. Definition
|
|
* for colorspaces or other meaning must be communicated separately.
|
|
*
|
|
* This is used when specifying primaries, transfer characteristics,
|
|
* etc. separately.
|
|
*
|
|
* A typical use case is in video encoding parameters (e.g. for H.264),
|
|
* where a colorspace can have separately defined primaries, transfer
|
|
* characteristics, etc.
|
|
*/
|
|
HAL_DATASPACE_ARBITRARY = 0x1,
|
|
|
|
/*
|
|
* Color-description aspects
|
|
*
|
|
* The following aspects define various characteristics of the color
|
|
* specification. These represent bitfields, so that a data space value
|
|
* can specify each of them independently.
|
|
*/
|
|
|
|
HAL_DATASPACE_STANDARD_SHIFT = 16,
|
|
|
|
/*
|
|
* Standard aspect
|
|
*
|
|
* Defines the chromaticity coordinates of the source primaries in terms of
|
|
* the CIE 1931 definition of x and y specified in ISO 11664-1.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_MASK = 63 << HAL_DATASPACE_STANDARD_SHIFT, // 0x3F
|
|
|
|
/*
|
|
* Chromacity coordinates are unknown or are determined by the application.
|
|
* Implementations shall use the following suggested standards:
|
|
*
|
|
* All YCbCr formats: BT709 if size is 720p or larger (since most video
|
|
* content is letterboxed this corresponds to width is
|
|
* 1280 or greater, or height is 720 or greater).
|
|
* BT601_625 if size is smaller than 720p or is JPEG.
|
|
* All RGB formats: BT709.
|
|
*
|
|
* For all other formats standard is undefined, and implementations should use
|
|
* an appropriate standard for the data represented.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_UNSPECIFIED = 0 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.300 0.600
|
|
* blue 0.150 0.060
|
|
* red 0.640 0.330
|
|
* white (D65) 0.3127 0.3290
|
|
*
|
|
* Use the unadjusted KR = 0.2126, KB = 0.0722 luminance interpretation
|
|
* for RGB conversion.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_BT709 = 1 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.290 0.600
|
|
* blue 0.150 0.060
|
|
* red 0.640 0.330
|
|
* white (D65) 0.3127 0.3290
|
|
*
|
|
* KR = 0.299, KB = 0.114. This adjusts the luminance interpretation
|
|
* for RGB conversion from the one purely determined by the primaries
|
|
* to minimize the color shift into RGB space that uses BT.709
|
|
* primaries.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_BT601_625 = 2 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.290 0.600
|
|
* blue 0.150 0.060
|
|
* red 0.640 0.330
|
|
* white (D65) 0.3127 0.3290
|
|
*
|
|
* Use the unadjusted KR = 0.222, KB = 0.071 luminance interpretation
|
|
* for RGB conversion.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_BT601_625_UNADJUSTED = 3 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.310 0.595
|
|
* blue 0.155 0.070
|
|
* red 0.630 0.340
|
|
* white (D65) 0.3127 0.3290
|
|
*
|
|
* KR = 0.299, KB = 0.114. This adjusts the luminance interpretation
|
|
* for RGB conversion from the one purely determined by the primaries
|
|
* to minimize the color shift into RGB space that uses BT.709
|
|
* primaries.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_BT601_525 = 4 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.310 0.595
|
|
* blue 0.155 0.070
|
|
* red 0.630 0.340
|
|
* white (D65) 0.3127 0.3290
|
|
*
|
|
* Use the unadjusted KR = 0.212, KB = 0.087 luminance interpretation
|
|
* for RGB conversion (as in SMPTE 240M).
|
|
*/
|
|
HAL_DATASPACE_STANDARD_BT601_525_UNADJUSTED = 5 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.170 0.797
|
|
* blue 0.131 0.046
|
|
* red 0.708 0.292
|
|
* white (D65) 0.3127 0.3290
|
|
*
|
|
* Use the unadjusted KR = 0.2627, KB = 0.0593 luminance interpretation
|
|
* for RGB conversion.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_BT2020 = 6 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.170 0.797
|
|
* blue 0.131 0.046
|
|
* red 0.708 0.292
|
|
* white (D65) 0.3127 0.3290
|
|
*
|
|
* Use the unadjusted KR = 0.2627, KB = 0.0593 luminance interpretation
|
|
* for RGB conversion using the linear domain.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_BT2020_CONSTANT_LUMINANCE = 7 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.21 0.71
|
|
* blue 0.14 0.08
|
|
* red 0.67 0.33
|
|
* white (C) 0.310 0.316
|
|
*
|
|
* Use the unadjusted KR = 0.30, KB = 0.11 luminance interpretation
|
|
* for RGB conversion.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_BT470M = 8 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
/*
|
|
* Primaries: x y
|
|
* green 0.243 0.692
|
|
* blue 0.145 0.049
|
|
* red 0.681 0.319
|
|
* white (C) 0.310 0.316
|
|
*
|
|
* Use the unadjusted KR = 0.254, KB = 0.068 luminance interpretation
|
|
* for RGB conversion.
|
|
*/
|
|
HAL_DATASPACE_STANDARD_FILM = 9 << HAL_DATASPACE_STANDARD_SHIFT,
|
|
|
|
HAL_DATASPACE_TRANSFER_SHIFT = 22,
|
|
|
|
/*
|
|
* Transfer aspect
|
|
*
|
|
* Transfer characteristics are the opto-electronic transfer characteristic
|
|
* at the source as a function of linear optical intensity (luminance).
|
|
*
|
|
* For digital signals, E corresponds to the recorded value. Normally, the
|
|
* transfer function is applied in RGB space to each of the R, G and B
|
|
* components independently. This may result in color shift that can be
|
|
* minized by applying the transfer function in Lab space only for the L
|
|
* component. Implementation may apply the transfer function in RGB space
|
|
* for all pixel formats if desired.
|
|
*/
|
|
|
|
HAL_DATASPACE_TRANSFER_MASK = 31 << HAL_DATASPACE_TRANSFER_SHIFT, // 0x1F
|
|
|
|
/*
|
|
* Transfer characteristics are unknown or are determined by the
|
|
* application.
|
|
*
|
|
* Implementations should use the following transfer functions:
|
|
*
|
|
* For YCbCr formats: use HAL_DATASPACE_TRANSFER_SMPTE_170M
|
|
* For RGB formats: use HAL_DATASPACE_TRANSFER_SRGB
|
|
*
|
|
* For all other formats transfer function is undefined, and implementations
|
|
* should use an appropriate standard for the data represented.
|
|
*/
|
|
HAL_DATASPACE_TRANSFER_UNSPECIFIED = 0 << HAL_DATASPACE_TRANSFER_SHIFT,
|
|
|
|
/*
|
|
* Transfer characteristic curve:
|
|
* E = L
|
|
* L - luminance of image 0 <= L <= 1 for conventional colorimetry
|
|
* E - corresponding electrical signal
|
|
*/
|
|
HAL_DATASPACE_TRANSFER_LINEAR = 1 << HAL_DATASPACE_TRANSFER_SHIFT,
|
|
|
|
/*
|
|
* Transfer characteristic curve:
|
|
*
|
|
* E = 1.055 * L^(1/2.4) - 0.055 for 0.0031308 <= L <= 1
|
|
* = 12.92 * L for 0 <= L < 0.0031308
|
|
* L - luminance of image 0 <= L <= 1 for conventional colorimetry
|
|
* E - corresponding electrical signal
|
|
*/
|
|
HAL_DATASPACE_TRANSFER_SRGB = 2 << HAL_DATASPACE_TRANSFER_SHIFT,
|
|
|
|
/*
|
|
* BT.601 525, BT.601 625, BT.709, BT.2020
|
|
*
|
|
* Transfer characteristic curve:
|
|
* E = 1.099 * L ^ 0.45 - 0.099 for 0.018 <= L <= 1
|
|
* = 4.500 * L for 0 <= L < 0.018
|
|
* L - luminance of image 0 <= L <= 1 for conventional colorimetry
|
|
* E - corresponding electrical signal
|
|
*/
|
|
HAL_DATASPACE_TRANSFER_SMPTE_170M = 3 << HAL_DATASPACE_TRANSFER_SHIFT,
|
|
|
|
/*
|
|
* Assumed display gamma 2.2.
|
|
*
|
|
* Transfer characteristic curve:
|
|
* E = L ^ (1/2.2)
|
|
* L - luminance of image 0 <= L <= 1 for conventional colorimetry
|
|
* E - corresponding electrical signal
|
|
*/
|
|
HAL_DATASPACE_TRANSFER_GAMMA2_2 = 4 << HAL_DATASPACE_TRANSFER_SHIFT,
|
|
|
|
/*
|
|
* display gamma 2.8.
|
|
*
|
|
* Transfer characteristic curve:
|
|
* E = L ^ (1/2.8)
|
|
* L - luminance of image 0 <= L <= 1 for conventional colorimetry
|
|
* E - corresponding electrical signal
|
|
*/
|
|
HAL_DATASPACE_TRANSFER_GAMMA2_8 = 5 << HAL_DATASPACE_TRANSFER_SHIFT,
|
|
|
|
/*
|
|
* SMPTE ST 2084
|
|
*
|
|
* Transfer characteristic curve:
|
|
* E = ((c1 + c2 * L^n) / (1 + c3 * L^n)) ^ m
|
|
* c1 = c3 - c2 + 1 = 3424 / 4096 = 0.8359375
|
|
* c2 = 32 * 2413 / 4096 = 18.8515625
|
|
* c3 = 32 * 2392 / 4096 = 18.6875
|
|
* m = 128 * 2523 / 4096 = 78.84375
|
|
* n = 0.25 * 2610 / 4096 = 0.1593017578125
|
|
* L - luminance of image 0 <= L <= 1 for HDR colorimetry.
|
|
* L = 1 corresponds to 10000 cd/m2
|
|
* E - corresponding electrical signal
|
|
*/
|
|
HAL_DATASPACE_TRANSFER_ST2084 = 6 << HAL_DATASPACE_TRANSFER_SHIFT,
|
|
|
|
/*
|
|
* ARIB STD-B67 Hybrid Log Gamma
|
|
*
|
|
* Transfer characteristic curve:
|
|
* E = r * L^0.5 for 0 <= L <= 1
|
|
* = a * ln(L - b) + c for 1 < L
|
|
* a = 0.17883277
|
|
* b = 0.28466892
|
|
* c = 0.55991073
|
|
* r = 0.5
|
|
* L - luminance of image 0 <= L for HDR colorimetry. L = 1 corresponds
|
|
* to reference white level of 100 cd/m2
|
|
* E - corresponding electrical signal
|
|
*/
|
|
HAL_DATASPACE_TRANSFER_HLG = 7 << HAL_DATASPACE_TRANSFER_SHIFT,
|
|
|
|
HAL_DATASPACE_RANGE_SHIFT = 27,
|
|
|
|
/*
|
|
* Range aspect
|
|
*
|
|
* Defines the range of values corresponding to the unit range of 0-1.
|
|
* This is defined for YCbCr only, but can be expanded to RGB space.
|
|
*/
|
|
HAL_DATASPACE_RANGE_MASK = 7 << HAL_DATASPACE_RANGE_SHIFT, // 0x7
|
|
|
|
/*
|
|
* Range is unknown or are determined by the application. Implementations
|
|
* shall use the following suggested ranges:
|
|
*
|
|
* All YCbCr formats: limited range.
|
|
* All RGB or RGBA formats (including RAW and Bayer): full range.
|
|
* All Y formats: full range
|
|
*
|
|
* For all other formats range is undefined, and implementations should use
|
|
* an appropriate range for the data represented.
|
|
*/
|
|
HAL_DATASPACE_RANGE_UNSPECIFIED = 0 << HAL_DATASPACE_RANGE_SHIFT,
|
|
|
|
/*
|
|
* Full range uses all values for Y, Cb and Cr from
|
|
* 0 to 2^b-1, where b is the bit depth of the color format.
|
|
*/
|
|
HAL_DATASPACE_RANGE_FULL = 1 << HAL_DATASPACE_RANGE_SHIFT,
|
|
|
|
/*
|
|
* Limited range uses values 16/256*2^b to 235/256*2^b for Y, and
|
|
* 1/16*2^b to 15/16*2^b for Cb, Cr, R, G and B, where b is the bit depth of
|
|
* the color format.
|
|
*
|
|
* E.g. For 8-bit-depth formats:
|
|
* Luma (Y) samples should range from 16 to 235, inclusive
|
|
* Chroma (Cb, Cr) samples should range from 16 to 240, inclusive
|
|
*
|
|
* For 10-bit-depth formats:
|
|
* Luma (Y) samples should range from 64 to 940, inclusive
|
|
* Chroma (Cb, Cr) samples should range from 64 to 960, inclusive
|
|
*/
|
|
HAL_DATASPACE_RANGE_LIMITED = 2 << HAL_DATASPACE_RANGE_SHIFT,
|
|
|
|
/*
|
|
* Legacy dataspaces
|
|
*/
|
|
|
|
/*
|
|
* sRGB linear encoding:
|
|
*
|
|
* The red, green, and blue components are stored in sRGB space, but
|
|
* are linear, not gamma-encoded.
|
|
* The RGB primaries and the white point are the same as BT.709.
|
|
*
|
|
* The values are encoded using the full range ([0,255] for 8-bit) for all
|
|
* components.
|
|
*/
|
|
HAL_DATASPACE_SRGB_LINEAR = 0x200, // deprecated, use HAL_DATASPACE_V0_SRGB_LINEAR
|
|
|
|
HAL_DATASPACE_V0_SRGB_LINEAR = HAL_DATASPACE_STANDARD_BT709 |
|
|
HAL_DATASPACE_TRANSFER_LINEAR | HAL_DATASPACE_RANGE_FULL,
|
|
|
|
|
|
/*
|
|
* sRGB gamma encoding:
|
|
*
|
|
* The red, green and blue components are stored in sRGB space, and
|
|
* converted to linear space when read, using the SRGB transfer function
|
|
* for each of the R, G and B components. When written, the inverse
|
|
* transformation is performed.
|
|
*
|
|
* The alpha component, if present, is always stored in linear space and
|
|
* is left unmodified when read or written.
|
|
*
|
|
* Use full range and BT.709 standard.
|
|
*/
|
|
HAL_DATASPACE_SRGB = 0x201, // deprecated, use HAL_DATASPACE_V0_SRGB
|
|
|
|
HAL_DATASPACE_V0_SRGB = HAL_DATASPACE_STANDARD_BT709 |
|
|
HAL_DATASPACE_TRANSFER_SRGB | HAL_DATASPACE_RANGE_FULL,
|
|
|
|
|
|
/*
|
|
* YCbCr Colorspaces
|
|
* -----------------
|
|
*
|
|
* Primaries are given using (x,y) coordinates in the CIE 1931 definition
|
|
* of x and y specified by ISO 11664-1.
|
|
*
|
|
* Transfer characteristics are the opto-electronic transfer characteristic
|
|
* at the source as a function of linear optical intensity (luminance).
|
|
*/
|
|
|
|
/*
|
|
* JPEG File Interchange Format (JFIF)
|
|
*
|
|
* Same model as BT.601-625, but all values (Y, Cb, Cr) range from 0 to 255
|
|
*
|
|
* Use full range, BT.601 transfer and BT.601_625 standard.
|
|
*/
|
|
HAL_DATASPACE_JFIF = 0x101, // deprecated, use HAL_DATASPACE_V0_JFIF
|
|
|
|
HAL_DATASPACE_V0_JFIF = HAL_DATASPACE_STANDARD_BT601_625 |
|
|
HAL_DATASPACE_TRANSFER_SMPTE_170M | HAL_DATASPACE_RANGE_FULL,
|
|
|
|
/*
|
|
* ITU-R Recommendation 601 (BT.601) - 625-line
|
|
*
|
|
* Standard-definition television, 625 Lines (PAL)
|
|
*
|
|
* Use limited range, BT.601 transfer and BT.601_625 standard.
|
|
*/
|
|
HAL_DATASPACE_BT601_625 = 0x102, // deprecated, use HAL_DATASPACE_V0_BT601_625
|
|
|
|
HAL_DATASPACE_V0_BT601_625 = HAL_DATASPACE_STANDARD_BT601_625 |
|
|
HAL_DATASPACE_TRANSFER_SMPTE_170M | HAL_DATASPACE_RANGE_LIMITED,
|
|
|
|
|
|
/*
|
|
* ITU-R Recommendation 601 (BT.601) - 525-line
|
|
*
|
|
* Standard-definition television, 525 Lines (NTSC)
|
|
*
|
|
* Use limited range, BT.601 transfer and BT.601_525 standard.
|
|
*/
|
|
HAL_DATASPACE_BT601_525 = 0x103, // deprecated, use HAL_DATASPACE_V0_BT601_525
|
|
|
|
HAL_DATASPACE_V0_BT601_525 = HAL_DATASPACE_STANDARD_BT601_525 |
|
|
HAL_DATASPACE_TRANSFER_SMPTE_170M | HAL_DATASPACE_RANGE_LIMITED,
|
|
|
|
/*
|
|
* ITU-R Recommendation 709 (BT.709)
|
|
*
|
|
* High-definition television
|
|
*
|
|
* Use limited range, BT.709 transfer and BT.709 standard.
|
|
*/
|
|
HAL_DATASPACE_BT709 = 0x104, // deprecated, use HAL_DATASPACE_V0_BT709
|
|
|
|
HAL_DATASPACE_V0_BT709 = HAL_DATASPACE_STANDARD_BT709 |
|
|
HAL_DATASPACE_TRANSFER_SMPTE_170M | HAL_DATASPACE_RANGE_LIMITED,
|
|
|
|
/*
|
|
* Data spaces for non-color formats
|
|
*/
|
|
|
|
/*
|
|
* The buffer contains depth ranging measurements from a depth camera.
|
|
* This value is valid with formats:
|
|
* HAL_PIXEL_FORMAT_Y16: 16-bit samples, consisting of a depth measurement
|
|
* and an associated confidence value. The 3 MSBs of the sample make
|
|
* up the confidence value, and the low 13 LSBs of the sample make up
|
|
* the depth measurement.
|
|
* For the confidence section, 0 means 100% confidence, 1 means 0%
|
|
* confidence. The mapping to a linear float confidence value between
|
|
* 0.f and 1.f can be obtained with
|
|
* float confidence = (((depthSample >> 13) - 1) & 0x7) / 7.0f;
|
|
* The depth measurement can be extracted simply with
|
|
* uint16_t range = (depthSample & 0x1FFF);
|
|
* HAL_PIXEL_FORMAT_BLOB: A depth point cloud, as
|
|
* a variable-length float (x,y,z, confidence) coordinate point list.
|
|
* The point cloud will be represented with the android_depth_points
|
|
* structure.
|
|
*/
|
|
HAL_DATASPACE_DEPTH = 0x1000
|
|
|
|
} android_dataspace_t;
|
|
|
|
/*
|
|
* Color transforms that may be applied by hardware composer to the whole
|
|
* display.
|
|
*/
|
|
typedef enum android_color_transform {
|
|
/* Applies no transform to the output color */
|
|
HAL_COLOR_TRANSFORM_IDENTITY = 0,
|
|
|
|
/* Applies an arbitrary transform defined by a 4x4 affine matrix */
|
|
HAL_COLOR_TRANSFORM_ARBITRARY_MATRIX = 1,
|
|
|
|
/* Applies a transform that inverts the value or luminance of the color, but
|
|
* does not modify hue or saturation */
|
|
HAL_COLOR_TRANSFORM_VALUE_INVERSE = 2,
|
|
|
|
/* Applies a transform that maps all colors to shades of gray */
|
|
HAL_COLOR_TRANSFORM_GRAYSCALE = 3,
|
|
|
|
/* Applies a transform which corrects for protanopic color blindness */
|
|
HAL_COLOR_TRANSFORM_CORRECT_PROTANOPIA = 4,
|
|
|
|
/* Applies a transform which corrects for deuteranopic color blindness */
|
|
HAL_COLOR_TRANSFORM_CORRECT_DEUTERANOPIA = 5,
|
|
|
|
/* Applies a transform which corrects for tritanopic color blindness */
|
|
HAL_COLOR_TRANSFORM_CORRECT_TRITANOPIA = 6
|
|
} android_color_transform_t;
|
|
|
|
/*
|
|
* Supported HDR formats. Must be kept in sync with equivalents in Display.java.
|
|
*/
|
|
typedef enum android_hdr {
|
|
/* Device supports Dolby Vision HDR */
|
|
HAL_HDR_DOLBY_VISION = 1,
|
|
|
|
/* Device supports HDR10 */
|
|
HAL_HDR_HDR10 = 2,
|
|
|
|
/* Device supports hybrid log-gamma HDR */
|
|
HAL_HDR_HLG = 3
|
|
} android_hdr_t;
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* SYSTEM_CORE_INCLUDE_ANDROID_GRAPHICS_H */
|