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https://github.com/gnif/LookingGlass.git
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695822bd6d
This is the first of two commits that completely turn the rendering code on it's head. This change set decouples the guest's capture rate from the host's render rate for both cursor and frame updates. This helps prevent the host application from stalling when waiting for frame draws when all it want's to do is send cursor updates. * Breaks OpenGL-Basic for now
121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/*
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Looking Glass - KVM FrameRelay (KVMFR) Client
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Copyright (C) 2017 Geoffrey McRae <geoff@hostfission.com>
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https://looking-glass.hostfission.com
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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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 <SDL2/SDL.h>
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#include <SDL2/SDL_ttf.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_resize && \
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(x)->on_mouse_shape && \
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(x)->on_mouse_event && \
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(x)->render)
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#define LGR_OPTION_COUNT(x) (sizeof(x) / sizeof(LG_RendererOpt))
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typedef bool(* LG_RendererOptValidator)(const char * value);
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typedef void(* LG_RendererOptHandler )(void * opaque, const char * value);
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typedef struct LG_RendererOpt
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{
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const char * name;
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const char * desc;
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LG_RendererOptValidator validator;
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LG_RendererOptHandler handler;
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}
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LG_RendererOpt;
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typedef struct LG_RendererOptValue
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{
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const LG_RendererOpt * opt;
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const char * value;
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} LG_RendererOptValue;
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typedef LG_RendererOpt * LG_RendererOptions;
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typedef struct LG_RendererParams
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{
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TTF_Font * font;
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bool showFPS;
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}
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LG_RendererParams;
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typedef struct LG_RendererFormat
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{
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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
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unsigned int pitch; // scanline bytes
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unsigned int bpp; // bits per pixel
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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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int x;
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int y;
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unsigned int w;
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unsigned 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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typedef const char * (* LG_RendererGetName )();
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typedef bool (* LG_RendererCreate )(void ** opaque, const LG_RendererParams params);
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typedef bool (* LG_RendererInitialize )(void * opaque, Uint32 * sdlFlags);
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typedef void (* LG_RendererDeInitialize)(void * opaque);
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typedef void (* LG_RendererOnResize )(void * opaque, const int width, const int height, const LG_RendererRect destRect);
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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_RendererOnFrameEvent)(void * opaque, const LG_RendererFormat format, const uint8_t * data);
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typedef bool (* LG_RendererRender )(void * opaque, SDL_Window *window);
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typedef struct LG_Renderer
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{
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LG_RendererCreate create;
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LG_RendererGetName get_name;
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LG_RendererOptions options;
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unsigned int option_count;
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LG_RendererInitialize initialize;
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LG_RendererDeInitialize deinitialize;
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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_RendererOnFrameEvent on_frame_event;
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LG_RendererRender render;
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}
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LG_Renderer;
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// generic option helpers
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bool LG_RendererValidatorBool(const char * value);
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bool LG_RendererValueToBool (const char * value); |