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[client] added renderer abstratction

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This moves the bulk of the rendering code into seperate rendering
modules cleaning up much of intertwined SDL & OpenGL mess.
This commit is contained in:
Geoffrey McRae
2017-12-05 20:33:05 +11:00
parent 5c335fca67
commit c1a82e853d
8 changed files with 699 additions and 311 deletions
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72
client/lg-renderer.h Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017 Geoffrey McRae <geoff@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>
#define IS_LG_RENDERER_VALID(x) \
((x)->get_name && \
(x)->initialize && \
(x)->deinitialize && \
(x)->is_compatible && \
(x)->render)
typedef struct LG_RendererParams
{
SDL_Window * window;
SDL_Renderer * renderer;
}
LG_RendererParams;
typedef struct LG_RendererFormat
{
unsigned int width; // image width
unsigned int height; // image height
unsigned int stride; // scanline width
unsigned int pitch; // scanline bytes
unsigned int bpp; // bits per pixel
}
LG_RendererFormat;
typedef struct LG_RendererRect
{
int x;
int y;
unsigned int w;
unsigned int h;
}
LG_RendererRect;
typedef const char * (* LG_RendererGetName )();
typedef bool (* LG_RendererInitialize )(void ** opaque, const LG_RendererParams params, const LG_RendererFormat format);
typedef void (* LG_RendererDeInitialize)(void * opaque);
typedef bool (* LG_RendererIsCompatible)(void * opaque, const LG_RendererFormat format);
typedef bool (* LG_RendererRender )(void * opaque, const LG_RendererRect destRect, const uint8_t * data, bool resample);
typedef struct LG_Renderer
{
LG_RendererGetName get_name;
LG_RendererInitialize initialize;
LG_RendererDeInitialize deinitialize;
LG_RendererIsCompatible is_compatible;
LG_RendererRender render;
}
LG_Renderer;