LookingGlass/host/include/interface/capture.h
Geoffrey McRae 3134ec84de [host] dxgi: add support for downsampling the capture before sending
This is an experimental & incomplete feature for those using
supersampling. Anything > 1200p will be downsampled by 50% before
copying out of the GPU to save on memory bandwidth.

Unfinished! Has issues with damage tracking and currently can not
be configured. Only dx11 has been tested at this point, everything
else will likely have problems/crash.
2022-05-01 19:45:44 +10:00

120 lines
3.0 KiB
C

/**
* Looking Glass
* Copyright © 2017-2022 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include <stdint.h>
#include "common/framebuffer.h"
#include "common/KVMFR.h"
typedef enum CaptureResult
{
CAPTURE_RESULT_OK ,
CAPTURE_RESULT_REINIT ,
CAPTURE_RESULT_TIMEOUT,
CAPTURE_RESULT_ERROR
}
CaptureResult;
typedef enum CaptureFormat
{
// frame formats
CAPTURE_FMT_BGRA ,
CAPTURE_FMT_RGBA ,
CAPTURE_FMT_RGBA10 ,
CAPTURE_FMT_RGBA16F,
// pointer formats
CAPTURE_FMT_COLOR ,
CAPTURE_FMT_MONO ,
CAPTURE_FMT_MASKED,
CAPTURE_FMT_MAX
}
CaptureFormat;
typedef enum CaptureRotation
{
CAPTURE_ROT_0,
CAPTURE_ROT_90,
CAPTURE_ROT_180,
CAPTURE_ROT_270
}
CaptureRotation;
typedef struct CaptureFrame
{
unsigned int formatVer;
unsigned int screenWidth;
unsigned int screenHeight;
unsigned int frameWidth;
unsigned int frameHeight;
bool truncated;
unsigned int pitch;
unsigned int stride;
CaptureFormat format;
CaptureRotation rotation;
uint32_t damageRectsCount;
FrameDamageRect damageRects[KVMFR_MAX_DAMAGE_RECTS];
}
CaptureFrame;
typedef struct CapturePointer
{
bool positionUpdate;
int x, y;
bool visible;
bool shapeUpdate;
CaptureFormat format;
unsigned int hx, hy;
unsigned int width, height;
unsigned int pitch;
}
CapturePointer;
typedef bool (*CaptureGetPointerBuffer )(void ** data, uint32_t * size);
typedef void (*CapturePostPointerBuffer)(CapturePointer pointer);
typedef struct CaptureInterface
{
const char * shortName;
const bool asyncCapture;
const char * (*getName )(void);
void (*initOptions )(void);
bool(*create)(
CaptureGetPointerBuffer getPointerBufferFn,
CapturePostPointerBuffer postPointerBufferFn
);
bool (*init )(void);
bool (*start )(void);
void (*stop )(void);
bool (*deinit )(void);
void (*free )(void);
CaptureResult (*capture )(void);
CaptureResult (*waitFrame )(CaptureFrame * frame, const size_t maxFrameSize);
CaptureResult (*getFrame )(FrameBuffer * frame, const unsigned int height, int frameIndex);
}
CaptureInterface;