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6389a06903
While the renderer can internally track this it would be better to simply provide this information to the renderer directly so it can make better decisions on how best to update the screen.
141 lines
4.8 KiB
C
141 lines
4.8 KiB
C
/**
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* Looking Glass
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* Copyright (C) 2017-2021 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 <stdint.h>
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#include <stdbool.h>
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#include "app.h"
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#include "common/KVMFR.h"
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#include "common/framebuffer.h"
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#define IS_LG_RENDERER_VALID(x) \
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((x)->get_name && \
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(x)->create && \
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(x)->initialize && \
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(x)->deinitialize && \
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(x)->on_restart && \
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(x)->on_resize && \
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(x)->on_mouse_shape && \
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(x)->on_mouse_event && \
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(x)->on_alert && \
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(x)->on_help && \
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(x)->render_startup && \
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(x)->render)
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typedef struct LG_RendererParams
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{
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// TTF_Font * font;
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// TTF_Font * alertFont;
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bool quickSplash;
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}
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LG_RendererParams;
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typedef enum LG_RendererSupport
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{
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LG_SUPPORTS_DMABUF
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}
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LG_RendererSupport;
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typedef enum LG_RendererRotate
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{
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LG_ROTATE_0,
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LG_ROTATE_90,
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LG_ROTATE_180,
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LG_ROTATE_270
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}
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LG_RendererRotate;
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// kept out of the enum so gcc doesn't warn when it's missing from a switch
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// statement.
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#define LG_ROTATE_MAX (LG_ROTATE_270+1)
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typedef struct LG_RendererFormat
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{
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FrameType type; // frame type
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unsigned int width; // image width
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unsigned int height; // image height
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unsigned int stride; // scanline width (zero if compresed)
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unsigned int pitch; // scanline bytes (or compressed size)
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unsigned int bpp; // bits per pixel (zero if compressed)
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LG_RendererRotate rotate; // guest rotation
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}
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LG_RendererFormat;
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typedef struct LG_RendererRect
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{
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bool valid;
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int x;
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int y;
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int w;
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int h;
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}
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LG_RendererRect;
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typedef enum LG_RendererCursor
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{
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LG_CURSOR_COLOR ,
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LG_CURSOR_MONOCHROME ,
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LG_CURSOR_MASKED_COLOR
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}
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LG_RendererCursor;
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// returns the friendly name of the renderer
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typedef const char * (* LG_RendererGetName)();
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// called pre-creation to allow the renderer to register any options it might have
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typedef void (* LG_RendererSetup)();
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typedef bool (* LG_RendererCreate )(void ** opaque, const LG_RendererParams params, bool * needsOpenGL);
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typedef bool (* LG_RendererInitialize )(void * opaque);
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typedef void (* LG_RendererDeInitialize )(void * opaque);
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typedef bool (* LG_RendererSupports )(void * opaque, LG_RendererSupport support);
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typedef void (* LG_RendererOnRestart )(void * opaque);
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typedef void (* LG_RendererOnResize )(void * opaque, const int width, const int height, const double scale, const LG_RendererRect destRect, LG_RendererRotate rotate);
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typedef bool (* LG_RendererOnMouseShape )(void * opaque, const LG_RendererCursor cursor, const int width, const int height, const int pitch, const uint8_t * data);
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typedef bool (* LG_RendererOnMouseEvent )(void * opaque, const bool visible , const int x, const int y);
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typedef bool (* LG_RendererOnFrameFormat)(void * opaque, const LG_RendererFormat format, bool useDMA);
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typedef bool (* LG_RendererOnFrame )(void * opaque, const FrameBuffer * frame, int dmaFD, const FrameDamageRect * damage, int damageCount);
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typedef void (* LG_RendererOnAlert )(void * opaque, const LG_MsgAlert alert, const char * message, bool ** closeFlag);
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typedef void (* LG_RendererOnHelp )(void * opaque, const char * message);
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typedef bool (* LG_RendererRenderStartup)(void * opaque);
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typedef bool (* LG_RendererRender )(void * opaque, LG_RendererRotate rotate, const bool newFrame);
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typedef struct LG_Renderer
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{
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LG_RendererGetName get_name;
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LG_RendererSetup setup;
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LG_RendererCreate create;
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LG_RendererInitialize initialize;
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LG_RendererDeInitialize deinitialize;
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LG_RendererSupports supports;
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LG_RendererOnRestart on_restart;
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LG_RendererOnResize on_resize;
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LG_RendererOnMouseShape on_mouse_shape;
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LG_RendererOnMouseEvent on_mouse_event;
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LG_RendererOnFrameFormat on_frame_format;
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LG_RendererOnFrame on_frame;
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LG_RendererOnAlert on_alert;
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LG_RendererOnHelp on_help;
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LG_RendererRenderStartup render_startup;
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LG_RendererRender render;
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}
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LG_Renderer;
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