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- allow changes to video resolution and fullscreen mode without restart

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This commit is contained in:
Mark Vejvoda
2013-01-01 02:24:23 +00:00
parent 5643cc67a4
commit 9275debe2d
10 changed files with 171 additions and 33 deletions
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5
source/shared_lib/sources/platform/common/platform_common.cpp
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@@ -1694,9 +1694,8 @@ void getFullscreenVideoModes(vector<ModeInfo> *modeinfos, bool isFullscreen) {
bool changeVideoMode(int resW, int resH, int colorBits, int ) {
Private::shouldBeFullscreen = true;
return true;
void changeVideoModeFullScreen(bool value) {
Private::shouldBeFullscreen = value;
}
void restoreVideoMode(bool exitingApp) {

10
source/shared_lib/sources/platform/sdl/gl_wrap.cpp
View File

@@ -105,6 +105,8 @@ void PlatformContextGl::init(int colorBits, int depthBits, int stencilBits,
// try different color bits
screen = SDL_SetVideoMode(resW, resH, i, flags);
if(screen != 0) {
glViewport( 0, 0, resW, resH ) ;
break;
}
}
@@ -116,6 +118,8 @@ void PlatformContextGl::init(int colorBits, int depthBits, int stencilBits,
if(screen != 0) {
resW = 800;
resH = 600;
glViewport( 0, 0, resW, resH ) ;
break;
}
}
@@ -127,6 +131,8 @@ void PlatformContextGl::init(int colorBits, int depthBits, int stencilBits,
if(screen != 0) {
resW = 640;
resH = 480;
glViewport( 0, 0, resW, resH ) ;
break;
}
}
@@ -136,6 +142,10 @@ void PlatformContextGl::init(int colorBits, int depthBits, int stencilBits,
throw std::runtime_error(msg.str());
}
}
else {
glViewport( 0, 0, resW, resH ) ;
//printf("Reset resolution to [%d] x [%d]\n",resW, resH);
}
#ifndef WIN32
string mg_icon_file = "";

89
source/shared_lib/sources/platform/sdl/window_gl.cpp
View File

@@ -12,9 +12,12 @@
#include "gl_wrap.h"
#include "graphics_interface.h"
#include "util.h"
#include "platform_util.h"
#include "leak_dumper.h"
using namespace Shared::Graphics;
using namespace Shared::Util;
namespace Shared{ namespace Platform{
@@ -44,4 +47,90 @@ void WindowGl::swapBuffersGl(){
context.swapBuffers();
}
// 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
if(preserveContext == true) {
SDL_SysWMinfo info;
// get window handle from SDL
SDL_VERSION(&info.version);
if (SDL_GetWMInfo(&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
HDC tempDC = GetDC( info.window );
// create temporary context
HGLRC 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.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_GetWMInfo(&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