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34e8a2255e
This is still incomplete as d3d12 doesn't have any proper sync with the captured frame and as such is still not suggested for general usage. This change though is monumental for this project as it removes a full memory copy reducing bandwidth consumption enormously.
135 lines
3.9 KiB
C
135 lines
3.9 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2023 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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CaptureRotation rotation; // output rotation of the frame
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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)(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 char * (*getName )(void);
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void (*initOptions )(void);
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bool(*create)(
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void * ivshmemBase,
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CaptureGetPointerBuffer getPointerBufferFn,
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CapturePostPointerBuffer postPointerBufferFn
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);
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bool (*init )(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 )(unsigned frameBufferIndex, FrameBuffer * frame);
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CaptureResult (*waitFrame )(CaptureFrame * frame, const size_t maxFrameSize);
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CaptureResult (*getFrame )(FrameBuffer * frame, int frameIndex);
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}
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CaptureInterface;
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