mirror of
https://github.com/RetroDECK/ES-DE.git
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102 lines
2.3 KiB
C++
102 lines
2.3 KiB
C++
#include "Renderer.h"
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#include <iostream>
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#include "platform.h"
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#include GLHEADER
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#include "Font.h"
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#include <SDL/SDL.h>
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#include "InputManager.h"
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namespace Renderer
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{
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unsigned int display_width = 0;
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unsigned int display_height = 0;
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unsigned int getScreenWidth() { return display_width; }
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unsigned int getScreenHeight() { return display_height; }
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SDL_Surface* sdlScreen = NULL;
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bool createSurface() //unsigned int display_width, unsigned int display_height)
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{
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std::cout << "Creating surface...";
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if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO) != 0)
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{
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std::cerr << "Error initializing SDL!\n";
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std::cerr << " " << SDL_GetError() << "\n";
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return false;
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}
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SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
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SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
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sdlScreen = SDL_SetVideoMode(display_width, display_height, 16, SDL_OPENGL | SDL_FULLSCREEN | SDL_DOUBLEBUF);
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if(sdlScreen == NULL)
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{
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std::cout << "Error creating SDL video surface!\n";
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return false;
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}
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//we need to reload input too since SDL shut down
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InputManager::loadConfig();
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//usually display width/height are not specified, i.e. zero, which SDL automatically takes as "native resolution"
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//so, since other things rely on the size of the screen (damn currently unnormalized coordinate system), we set it here
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//even though the system was already initialized
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display_width = sdlScreen->w;
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display_height = sdlScreen->h;
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std::cout << "success!\n";
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return true;
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}
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void swapBuffers()
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{
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SDL_GL_SwapBuffers();
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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}
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void destroySurface()
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{
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SDL_FreeSurface(sdlScreen);
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sdlScreen = NULL;
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SDL_Quit();
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}
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bool init(int w, int h)
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{
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if(w)
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display_width = w;
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if(h)
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display_height = h;
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bool createdSurface = createSurface();
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if(!createdSurface)
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return false;
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Font::initLibrary();
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glViewport(0, 0, display_width, display_height);
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glOrtho(0, display_width, display_height, 0, -1.0, 1.0);
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glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
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onInit();
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return true;
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}
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void unloadFonts(); //defined in Renderer_draw_gl.cpp
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void deinit()
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{
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onDeinit();
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unloadFonts();
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destroySurface();
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}
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};
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