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https://github.com/gnif/LookingGlass.git
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c190aaf579
Convert FP16 scRGB captures to BT.2020 PQ before storing them in the 10-bit wire format. Preserve linear-light downsampling, publish the real SDR white level and display metadata, and advance the format version when those properties change.
154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2026 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include "common/KVMFR.h"
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#ifdef __cplusplus
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/* using common/framebuffer.h breaks compatibillity with C++ due to it's usage
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* of stdatomic.h, so we need to forward declare the structure here */
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typedef struct stFrameBuffer FrameBuffer;
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#else
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#include "common/framebuffer.h"
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#endif
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typedef enum CaptureResult
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{
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CAPTURE_RESULT_OK ,
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CAPTURE_RESULT_REINIT ,
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CAPTURE_RESULT_TIMEOUT,
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CAPTURE_RESULT_ERROR
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}
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CaptureResult;
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typedef enum CaptureFormat
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{
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// frame formats
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CAPTURE_FMT_BGRA ,
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CAPTURE_FMT_RGBA ,
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CAPTURE_FMT_RGBA10 ,
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CAPTURE_FMT_RGBA16F,
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CAPTURE_FMT_BGR_32 ,
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CAPTURE_FMT_RGB_24 ,
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// pointer formats
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CAPTURE_FMT_COLOR ,
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CAPTURE_FMT_MONO ,
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CAPTURE_FMT_MASKED,
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CAPTURE_FMT_MAX
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}
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CaptureFormat;
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typedef enum CaptureRotation
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{
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CAPTURE_ROT_0,
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CAPTURE_ROT_90,
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CAPTURE_ROT_180,
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CAPTURE_ROT_270
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}
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CaptureRotation;
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typedef struct CaptureFrame
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{
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unsigned formatVer;
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unsigned screenWidth; // actual screen width
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unsigned screenHeight; // actual screen height
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unsigned dataWidth; // the width of the packed frame data
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unsigned dataHeight; // the height of the packed frame data
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unsigned frameWidth; // width of the frame image
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unsigned frameHeight; // height of the frame image
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unsigned pitch; // total width of one row of data in bytes
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unsigned stride; // total width of one row of data in pixels
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CaptureFormat format; // the data format of the frame
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bool truncated; // true if the frame data is truncated
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bool hdr; // true if the frame format is HDR
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bool hdrPQ; // true if the frame format is PQ transformed
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bool hdrMetadata; // true if the HDR static metadata is valid
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CaptureRotation rotation; // output rotation of the frame
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uint16_t hdrDisplayPrimary[3][2];
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uint16_t hdrWhitePoint[2];
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uint32_t hdrMaxDisplayLuminance;
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uint32_t hdrMinDisplayLuminance;
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uint32_t hdrMaxContentLightLevel;
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uint32_t hdrMaxFrameAverageLightLevel;
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uint32_t sdrWhiteLevel;
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uint32_t damageRectsCount;
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FrameDamageRect damageRects[KVMFR_MAX_DAMAGE_RECTS];
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}
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CaptureFrame;
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typedef struct CapturePointer
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{
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bool positionUpdate;
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int x, y;
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bool visible;
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bool shapeUpdate;
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CaptureFormat format;
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unsigned hx, hy;
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unsigned width, height;
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unsigned pitch;
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}
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CapturePointer;
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typedef bool (*CaptureGetPointerBuffer )(void ** data, uint32_t * size);
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typedef void (*CapturePostPointerBuffer)(const CapturePointer * pointer);
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typedef struct CaptureInterface
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{
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const char * shortName;
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const bool asyncCapture;
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const bool deprecated;
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const char * (*getName )(void);
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void (*initOptions )(void);
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bool(*create)(
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CaptureGetPointerBuffer getPointerBufferFn,
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CapturePostPointerBuffer postPointerBufferFn,
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unsigned frameBuffers
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);
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bool (*init )(void * ivshmemBase, unsigned * alignSize);
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bool (*start )(void);
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void (*stop )(void);
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bool (*deinit )(void);
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void (*free )(void);
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CaptureResult (*capture )(
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unsigned frameBufferIndex,
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FrameBuffer * frame);
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CaptureResult (*waitFrame )(
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unsigned frameBufferIndex,
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CaptureFrame * frame,
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const size_t maxFrameSize);
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CaptureResult (*getFrame )(
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unsigned frameBufferIndex,
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FrameBuffer * frame,
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const size_t maxFrameSize);
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}
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CaptureInterface;
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