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// ==============================================================
// This file is part of Glest Shared Library (www.glest.org)
//
// Copyright (C) 2005 Matthias Braun <matze@braunis.de>
//
// You can redistribute this code 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
// ==============================================================
#include "window_gl.h"
#include "gl_wrap.h"
#include "graphics_interface.h"
#include "util.h"
#include "platform_util.h"
#include "sdl_private.h"
#include "opengl.h"
#ifdef WIN32
#include "SDL_syswm.h"
#endif
#include "leak_dumper.h"
using namespace Shared::Graphics;
using namespace Shared::Util;
namespace Shared{ namespace Platform{
// =====================================================
// class WindowGl
// =====================================================
WindowGl::WindowGl() : Window() {
}
WindowGl::WindowGl(SDL_Window *sdlWindow) : Window(sdlWindow) {
}
WindowGl::~WindowGl() {
}
int WindowGl::getScreenWidth() {
return PlatformCommon::Private::ScreenWidth;
}
int WindowGl::getScreenHeight() {
return PlatformCommon::Private::ScreenHeight;
}
void WindowGl::setGamma(SDL_Window *window,float gammaValue) {
//SDL_SetGamma(gammaValue, gammaValue, gammaValue);
//SDL_SetWindowGammaRamp(getSDLWindow(), gammaValue, gammaValue, gammaValue);
gammaValue = clamp(gammaValue, 0.1f, 10.0f);
Uint16 red_ramp[256];
Uint16 green_ramp[256];
Uint16 blue_ramp[256];
SDL_CalculateGammaRamp(gammaValue, red_ramp);
SDL_memcpy(green_ramp, red_ramp, sizeof(red_ramp));
SDL_memcpy(blue_ramp, red_ramp, sizeof(red_ramp));
SDL_SetWindowGammaRamp(window, red_ramp, green_ramp, blue_ramp);
}
void WindowGl::setGamma(float gammaValue) {
context.setGammaValue(gammaValue);
WindowGl::setGamma(getSDLWindow(),gammaValue);
}
SDL_Window * WindowGl::getScreenWindow() {
return context.getPlatformContextGlPtr()->getScreenWindow();
}
SDL_Surface * WindowGl::getScreenSurface() {
return context.getPlatformContextGlPtr()->getScreenSurface();
}
void WindowGl::initGl(int colorBits, int depthBits, int stencilBits,
bool hardware_acceleration, bool fullscreen_anti_aliasing,
float gammaValue) {
context.setColorBits(colorBits);
context.setDepthBits(depthBits);
context.setStencilBits(stencilBits);
context.setHardware_acceleration(hardware_acceleration);
context.setFullscreen_anti_aliasing(fullscreen_anti_aliasing);
context.setGammaValue(gammaValue);
context.init();
setSDLWindow(context.getPlatformContextGlPtr()->getScreenWindow());
}
void WindowGl::makeCurrentGl() {
GraphicsInterface::getInstance().setCurrentContext(&context);
context.makeCurrent();
}
void WindowGl::swapBuffersGl(){
context.swapBuffers();
}
void WindowGl::eventToggleFullScreen(bool isFullscreen) {
Window::eventToggleFullScreen(isFullscreen);
if(GlobalStaticFlags::getIsNonGraphicalModeEnabled() == false) {
//SDL_Surface *cur_surface = SDL_GetVideoSurface();
if(getScreenWindow() != NULL) {
if(getIsFullScreen()){
SDL_SetWindowFullscreen(getScreenWindow(),SDL_WINDOW_FULLSCREEN_DESKTOP);
}
else {
SDL_SetWindowFullscreen(getScreenWindow(),0);
}
}
if(isFullscreen) {
changeVideoModeFullScreen(isFullscreen);
ChangeVideoMode(true, getScreenWidth(), getScreenHeight(),
true,context.getColorBits(), context.getDepthBits(), context.getStencilBits(),
context.getHardware_acceleration(),context.getFullscreen_anti_aliasing(),
context.getGammaValue());
}
else {
changeVideoModeFullScreen(false);
ChangeVideoMode(true, getDesiredScreenWidth(), getDesiredScreenHeight(),
false,context.getColorBits(), context.getDepthBits(), context.getStencilBits(),
context.getHardware_acceleration(),context.getFullscreen_anti_aliasing(),
context.getGammaValue());
}
}
}
// changes display resolution at any time
bool WindowGl::ChangeVideoMode(bool preserveContext, int resWidth, int resHeight,
bool fullscreenWindow,
int colorBits, int depthBits, int stencilBits, bool hardware_acceleration,
bool fullscreen_anti_aliasing, float gammaValue) {
if(SystemFlags::VERBOSE_MODE_ENABLED) printf("In [%s::%s %d] preserveContext = %d\n",extractFileFromDirectoryPath(__FILE__).c_str(),__FUNCTION__,__LINE__,preserveContext);
#ifdef WIN32
SDL_SysWMinfo info;
HDC tempDC = 0;
HGLRC tempRC = 0;
if(preserveContext == true) {
// get window handle from SDL
SDL_VERSION(&info.version);
if (SDL_GetWindowWMInfo(Window::getSDLWindow(),&info) == -1) {
if(SystemFlags::getSystemSettingType(SystemFlags::debugError).enabled) SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s %d] SDL_GetWMInfo #1 failed\n",extractFileFromDirectoryPath(__FILE__).c_str(),__FUNCTION__,__LINE__);
return false;
}
// get device context handle
tempDC = GetDC( info.info.win.window );
// create temporary context
tempRC = wglCreateContext( tempDC );
if (tempRC == NULL) {
if(SystemFlags::getSystemSettingType(SystemFlags::debugError).enabled) SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s %d] wglCreateContext failed\n",extractFileFromDirectoryPath(__FILE__).c_str(),__FUNCTION__,__LINE__);
return false;
}
// share resources to temporary context
SetLastError(0);
//if (!wglShareLists(info.info.win.hglrc, tempRC)) {
// if(SystemFlags::getSystemSettingType(SystemFlags::debugError).enabled) SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s %d] wglShareLists #1 failed\n",extractFileFromDirectoryPath(__FILE__).c_str(),__FUNCTION__,__LINE__);
// return false;
//}
}
#endif
// set video mode
//if (!SetVideoMode())
// return false;
// this->initGl(config.getInt("ColorBits"),
// config.getInt("DepthBits"),
// config.getInt("StencilBits"),
// config.getBool("HardwareAcceleration","false"),
// config.getBool("FullScreenAntiAliasing","false"),
// config.getFloat("GammaValue","0.0"));
this->setStyle(fullscreenWindow ? wsWindowedFixed: wsFullscreen);
this->setPos(0, 0);
this->setSize(resWidth, resHeight);
this->initGl(colorBits, depthBits, stencilBits,hardware_acceleration,
fullscreen_anti_aliasing,gammaValue);
if(SystemFlags::getSystemSettingType(SystemFlags::debugSystem).enabled) SystemFlags::OutputDebug(SystemFlags::debugSystem,"In [%s::%s Line: %d]\n",extractFileFromDirectoryPath(__FILE__).c_str(),__FUNCTION__,__LINE__);
this->makeCurrentGl();
#ifdef WIN32
if(preserveContext == true) {
// previously used structure may possibly be invalid, to be sure we get it again
SDL_VERSION(&info.version);
if (SDL_GetWindowWMInfo(Window::getSDLWindow(),&info) == -1) {
if(SystemFlags::getSystemSettingType(SystemFlags::debugError).enabled) SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s %d] SDL_GetWMInfo #2 failed\n",extractFileFromDirectoryPath(__FILE__).c_str(),__FUNCTION__,__LINE__);
return false;
}
// share resources to new SDL-created context
//if (!wglShareLists(tempRC, info.hglrc)) {
// if(SystemFlags::getSystemSettingType(SystemFlags::debugError).enabled) SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s %d] wglShareLists #2 failed\n",extractFileFromDirectoryPath(__FILE__).c_str(),__FUNCTION__,__LINE__);
// return false;
//}
// we no longer need our temporary context
if (!wglDeleteContext(tempRC)) {
if(SystemFlags::getSystemSettingType(SystemFlags::debugError).enabled) SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s %d] wglDeleteContext failed\n",extractFileFromDirectoryPath(__FILE__).c_str(),__FUNCTION__,__LINE__);
return false;
}
}
#endif
// success
return true;
}
}}//end namespace
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