looking-glass/client/lg-renderer.h
2018-05-29 11:06:42 +10:00

142 lines
No EOL
4.3 KiB
C

/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
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 <stdint.h>
#include <stdbool.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_ttf.h>
#define IS_LG_RENDERER_VALID(x) \
((x)->get_name && \
(x)->create && \
(x)->initialize && \
(x)->deinitialize && \
(x)->on_resize && \
(x)->on_mouse_shape && \
(x)->on_mouse_event && \
(x)->on_alert && \
(x)->render)
#define LGR_OPTION_COUNT(x) (sizeof(x) / sizeof(LG_RendererOpt))
typedef bool(* LG_RendererOptValidator)(const char * value);
typedef void(* LG_RendererOptHandler )(void * opaque, const char * value);
typedef struct LG_RendererOpt
{
const char * name;
const char * desc;
LG_RendererOptValidator validator;
LG_RendererOptHandler handler;
}
LG_RendererOpt;
typedef struct LG_RendererOptValue
{
const LG_RendererOpt * opt;
char * value;
} LG_RendererOptValue;
typedef LG_RendererOpt * LG_RendererOptions;
typedef struct LG_RendererParams
{
TTF_Font * font;
TTF_Font * alertFont;
bool showFPS;
}
LG_RendererParams;
typedef enum LG_RendererComp
{
LG_COMPRESSION_NONE,
LG_COMPRESSION_H264
}
LG_RendererComp;
typedef struct LG_RendererFormat
{
LG_RendererComp comp; // compression format
unsigned int width; // image width
unsigned int height; // image height
unsigned int stride; // scanline width (zero if compresed)
unsigned int pitch; // scanline bytes (or compressed size)
unsigned int bpp; // bits per pixel (zero if compressed)
}
LG_RendererFormat;
typedef struct LG_RendererRect
{
int x;
int y;
unsigned int w;
unsigned int h;
}
LG_RendererRect;
typedef enum LG_RendererCursor
{
LG_CURSOR_COLOR ,
LG_CURSOR_MONOCHROME ,
LG_CURSOR_MASKED_COLOR
}
LG_RendererCursor;
typedef enum LG_RendererOnAlert
{
LG_ALERT_INFO ,
LG_ALERT_SUCCESS,
LG_ALERT_WARNING,
LG_ALERT_ERROR
}
LG_RendererAlert;
typedef const char * (* LG_RendererGetName )();
typedef bool (* LG_RendererCreate )(void ** opaque, const LG_RendererParams params);
typedef bool (* LG_RendererInitialize )(void * opaque, Uint32 * sdlFlags);
typedef void (* LG_RendererDeInitialize)(void * opaque);
typedef void (* LG_RendererOnResize )(void * opaque, const int width, const int height, const LG_RendererRect destRect);
typedef bool (* LG_RendererOnMouseShape)(void * opaque, const LG_RendererCursor cursor, const int width, const int height, const int pitch, const uint8_t * data);
typedef bool (* LG_RendererOnMouseEvent)(void * opaque, const bool visible , const int x, const int y);
typedef bool (* LG_RendererOnFrameEvent)(void * opaque, const LG_RendererFormat format, const uint8_t * data);
typedef void (* LG_RendererOnAlert )(void * opaque, const LG_RendererAlert alert, const char * message);
typedef bool (* LG_RendererRender )(void * opaque, SDL_Window *window);
typedef struct LG_Renderer
{
LG_RendererCreate create;
LG_RendererGetName get_name;
LG_RendererOptions options;
unsigned int option_count;
LG_RendererInitialize initialize;
LG_RendererDeInitialize deinitialize;
LG_RendererOnResize on_resize;
LG_RendererOnMouseShape on_mouse_shape;
LG_RendererOnMouseEvent on_mouse_event;
LG_RendererOnFrameEvent on_frame_event;
LG_RendererOnAlert on_alert;
LG_RendererRender render;
}
LG_Renderer;
// generic option helpers
bool LG_RendererValidatorBool(const char * value);
bool LG_RendererValueToBool (const char * value);