static bool
setupOptionalGLExtensions(RGSSThreadData* threadData)
{
if (!GLEW_ARB_framebuffer_object)
{
if (!GLEW_EXT_framebuffer_object && !GLEW_EXT_framebuffer_blit)
{
rgssThreadError(threadData, "GL extensions \"GL_ARB_framebuffer_object\" or compatible extensiosns GL_EXT_framebuffer_object and GL_EXT_framebuffer_blit are not present");
return false;
}
else
{
/* setup compat */
/* From EXT_framebuffer_object */
glGenRenderbuffers = glGenRenderbuffersEXT;
glDeleteRenderbuffers = glDeleteRenderbuffersEXT;
glBindRenderbuffer = glBindRenderbufferEXT;
glRenderbufferStorage = glRenderbufferStorageEXT;
glGenFramebuffers = glGenFramebuffersEXT;
glDeleteFramebuffers = glDeleteFramebuffersEXT;
glBindFramebuffer = glBindFramebufferEXT;
glFramebufferTexture2D = glFramebufferTexture2DEXT;
glFramebufferRenderbuffer = glFramebufferRenderbufferEXT;
/* From EXT_framebuffer_blit */
glBlitFramebuffer = glBlitFramebufferEXT;
}
}
if (!GLEW_ARB_timer_query && GLEW_EXT_timer_query)
{
glGetQueryObjecti64v = glGetQueryObjecti64vEXT;
glGetQueryObjectui64v = glGetQueryObjectui64vEXT;
}
if (!GLEW_ARB_vertex_array_object )
{
if (!GLEW_APPLE_vertex_array_object)
{
rgssThreadError(threadData, "GL extensions \"GL_ARB_vertex_array_object\" or compatible extensiosn GL_APPLE_vertex_array_object are not present");
return false;
}
else
{
/* setup compat */
glBindVertexArray = glBindVertexArrayAPPLE;
/* the cast is because apple's uses const GLuint* and ARB doesn't */
glGenVertexArrays = (PFNGLGENVERTEXARRAYSPROC)glGenVertexArraysAPPLE;
glDeleteVertexArrays = glDeleteVertexArraysAPPLE;
}
}
return true;
}
int rgssThreadFun(void *userdata)
{
RGSSThreadData *threadData = static_cast<RGSSThreadData*>(userdata);
const Config &conf = threadData->config;
SDL_Window *win = threadData->window;
SDL_GLContext glCtx;
/* Setup GL context */
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
if (conf.debugMode)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG);
glCtx = SDL_GL_CreateContext(win);
if (!glCtx)
{
rgssThreadError(threadData, std::string("Error creating context: ") + SDL_GetError());
return 0;
}
try
{
initGLFunctions();
}
catch (const Exception &exc)
{
rgssThreadError(threadData, exc.msg);
SDL_GL_DeleteContext(glCtx);
return 0;
}
if (!conf.enableBlitting)
gl.BlitFramebuffer = 0;
gl.ClearColor(0, 0, 0, 1);
gl.Clear(GL_COLOR_BUFFER_BIT);
SDL_GL_SwapWindow(win);
printGLInfo();
bool vsync = conf.vsync || conf.syncToRefreshrate;
SDL_GL_SetSwapInterval(vsync ? 1 : 0);
GLDebugLogger dLogger;
/* Setup AL context */
ALCcontext *alcCtx = alcCreateContext(threadData->alcDev, 0);
if (!alcCtx)
{
rgssThreadError(threadData, "Error creating OpenAL context");
SDL_GL_DeleteContext(glCtx);
return 0;
}
alcMakeContextCurrent(alcCtx);
try
{
SharedState::initInstance(threadData);
}
catch (const Exception &exc)
{
rgssThreadError(threadData, exc.msg);
alcDestroyContext(alcCtx);
SDL_GL_DeleteContext(glCtx);
return 0;
}
/* Start script execution */
scriptBinding->execute();
threadData->rqTermAck.set();
threadData->ethread->requestTerminate();
SharedState::finiInstance();
alcDestroyContext(alcCtx);
SDL_GL_DeleteContext(glCtx);
return 0;
}
int rgssThreadFun(void *userdata)
{
RGSSThreadData *threadData = static_cast<RGSSThreadData*>(userdata);
SDL_Window *win = threadData->window;
SDL_GLContext glCtx;
/* Setup GL context */
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
if (threadData->config.debugMode)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG);
glCtx = SDL_GL_CreateContext(win);
if (!glCtx)
{
rgssThreadError(threadData, std::string("Error creating context: ") + SDL_GetError());
return 0;
}
if (glewInit() != GLEW_OK)
{
rgssThreadError(threadData, "Error initializing glew");
SDL_GL_DeleteContext(glCtx);
return 0;
}
glClearColor(0, 0, 0, 1);
glClear(GL_COLOR_BUFFER_BIT);
SDL_GL_SwapWindow(win);
printGLInfo();
/* Check for required GL version */
if (!GLEW_VERSION_2_0)
{
rgssThreadError(threadData, "At least OpenGL 2.0 is required");
SDL_GL_DeleteContext(glCtx);
return 0;
}
/* Setup optional GL extensions */
if (!setupOptionalGLExtensions(threadData))
{
SDL_GL_DeleteContext(glCtx);
return 0;
}
SDL_GL_SetSwapInterval(threadData->config.vsync ? 1 : 0);
DebugLogger dLogger;
/* Setup AL context */
ALCdevice *alcDev = alcOpenDevice(0);
if (!alcDev)
{
rgssThreadError(threadData, "Error opening OpenAL device");
SDL_GL_DeleteContext(glCtx);
return 0;
}
ALCcontext *alcCtx = alcCreateContext(alcDev, 0);
if (!alcCtx)
{
rgssThreadError(threadData, "Error creating OpenAL context");
alcCloseDevice(alcDev);
SDL_GL_DeleteContext(glCtx);
return 0;
}
alcMakeContextCurrent(alcCtx);
try
{
SharedState::initInstance(threadData);
}
catch (const Exception &exc)
{
rgssThreadError(threadData, exc.msg);
alcDestroyContext(alcCtx);
alcCloseDevice(alcDev);
SDL_GL_DeleteContext(glCtx);
return 0;
}
/* Start script execution */
scriptBinding->execute();
threadData->rqTermAck = true;
threadData->ethread->requestTerminate();
SharedState::finiInstance();
alcDestroyContext(alcCtx);
alcCloseDevice(alcDev);
SDL_GL_DeleteContext(glCtx);
return 0;
}
