michael@0: #include "precompiled.h"
michael@0: //
michael@0: // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // main.cpp: DLL entry point and management of thread-local data.
michael@0: 
michael@0: #include "libGLESv2/main.h"
michael@0: 
michael@0: #include "libGLESv2/Context.h"
michael@0: 
michael@0: static DWORD currentTLS = TLS_OUT_OF_INDEXES;
michael@0: 
michael@0: extern "C" BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
michael@0: {
michael@0:     switch (reason)
michael@0:     {
michael@0:       case DLL_PROCESS_ATTACH:
michael@0:         {
michael@0:             currentTLS = TlsAlloc();
michael@0: 
michael@0:             if (currentTLS == TLS_OUT_OF_INDEXES)
michael@0:             {
michael@0:                 return FALSE;
michael@0:             }
michael@0:         }
michael@0:         // Fall throught to initialize index
michael@0:       case DLL_THREAD_ATTACH:
michael@0:         {
michael@0:             gl::Current *current = (gl::Current*)LocalAlloc(LPTR, sizeof(gl::Current));
michael@0: 
michael@0:             if (current)
michael@0:             {
michael@0:                 TlsSetValue(currentTLS, current);
michael@0: 
michael@0:                 current->context = NULL;
michael@0:                 current->display = NULL;
michael@0:             }
michael@0:         }
michael@0:         break;
michael@0:       case DLL_THREAD_DETACH:
michael@0:         {
michael@0:             void *current = TlsGetValue(currentTLS);
michael@0: 
michael@0:             if (current)
michael@0:             {
michael@0:                 LocalFree((HLOCAL)current);
michael@0:             }
michael@0:         }
michael@0:         break;
michael@0:       case DLL_PROCESS_DETACH:
michael@0:         {
michael@0:             void *current = TlsGetValue(currentTLS);
michael@0: 
michael@0:             if (current)
michael@0:             {
michael@0:                 LocalFree((HLOCAL)current);
michael@0:             }
michael@0: 
michael@0:             TlsFree(currentTLS);
michael@0:         }
michael@0:         break;
michael@0:       default:
michael@0:         break;
michael@0:     }
michael@0: 
michael@0:     return TRUE;
michael@0: }
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: void makeCurrent(Context *context, egl::Display *display, egl::Surface *surface)
michael@0: {
michael@0:     Current *current = (Current*)TlsGetValue(currentTLS);
michael@0: 
michael@0:     current->context = context;
michael@0:     current->display = display;
michael@0: 
michael@0:     if (context && display && surface)
michael@0:     {
michael@0:         context->makeCurrent(surface);
michael@0:     }
michael@0: }
michael@0: 
michael@0: Context *getContext()
michael@0: {
michael@0:     Current *current = (Current*)TlsGetValue(currentTLS);
michael@0: 
michael@0:     return current->context;
michael@0: }
michael@0: 
michael@0: Context *getNonLostContext()
michael@0: {
michael@0:     Context *context = getContext();
michael@0:     
michael@0:     if (context)
michael@0:     {
michael@0:         if (context->isContextLost())
michael@0:         {
michael@0:             gl::error(GL_OUT_OF_MEMORY);
michael@0:             return NULL;
michael@0:         }
michael@0:         else
michael@0:         {
michael@0:             return context;
michael@0:         }
michael@0:     }
michael@0:     return NULL;
michael@0: }
michael@0: 
michael@0: egl::Display *getDisplay()
michael@0: {
michael@0:     Current *current = (Current*)TlsGetValue(currentTLS);
michael@0: 
michael@0:     return current->display;
michael@0: }
michael@0: 
michael@0: // Records an error code
michael@0: void error(GLenum errorCode)
michael@0: {
michael@0:     gl::Context *context = glGetCurrentContext();
michael@0: 
michael@0:     if (context)
michael@0:     {
michael@0:         switch (errorCode)
michael@0:         {
michael@0:           case GL_INVALID_ENUM:
michael@0:             context->recordInvalidEnum();
michael@0:             TRACE("\t! Error generated: invalid enum\n");
michael@0:             break;
michael@0:           case GL_INVALID_VALUE:
michael@0:             context->recordInvalidValue();
michael@0:             TRACE("\t! Error generated: invalid value\n");
michael@0:             break;
michael@0:           case GL_INVALID_OPERATION:
michael@0:             context->recordInvalidOperation();
michael@0:             TRACE("\t! Error generated: invalid operation\n");
michael@0:             break;
michael@0:           case GL_OUT_OF_MEMORY:
michael@0:             context->recordOutOfMemory();
michael@0:             TRACE("\t! Error generated: out of memory\n");
michael@0:             break;
michael@0:           case GL_INVALID_FRAMEBUFFER_OPERATION:
michael@0:             context->recordInvalidFramebufferOperation();
michael@0:             TRACE("\t! Error generated: invalid framebuffer operation\n");
michael@0:             break;
michael@0:           default: UNREACHABLE();
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: }
michael@0: