tge/engine/platformX86UNIX/x86UNIXOGLVideo.cc
2017-04-17 06:17:10 -06:00

491 lines
15 KiB
C++
Executable File

//-----------------------------------------------------------------------------
// Torque Game Engine
// Copyright (C) GarageGames.com, Inc.
//-----------------------------------------------------------------------------
#include "console/console.h"
#include "platform/event.h"
#include "platform/gameInterface.h"
#include "platformX86UNIX/platformX86UNIX.h"
#include "platformX86UNIX/platformGL.h"
#include "platformX86UNIX/x86UNIXOGLVideo.h"
#include "platformX86UNIX/x86UNIXState.h"
#include <SDL/SDL.h>
#include <SDL/SDL_syswm.h>
#include <SDL/SDL_version.h>
//------------------------------------------------------------------------------
bool InitOpenGL()
{
DisplayDevice::init();
// Get the video settings from the prefs:
const char* resString = Con::getVariable( "$pref::Video::resolution" );
char* tempBuf = new char[dStrlen( resString ) + 1];
dStrcpy( tempBuf, resString );
char* temp = dStrtok( tempBuf, " x\0" );
U32 width = ( temp ? dAtoi( temp ) : 800 );
temp = dStrtok( NULL, " x\0" );
U32 height = ( temp ? dAtoi( temp ) : 600 );
temp = dStrtok( NULL, "\0" );
U32 bpp = ( temp ? dAtoi( temp ) : 16 );
delete [] tempBuf;
bool fullScreen = Con::getBoolVariable( "$pref::Video::fullScreen" );
// the only supported video device in unix is OpenGL
if ( !Video::setDevice( "OpenGL", width, height, bpp, fullScreen ) )
{
Con::errorf("Unable to create default OpenGL mode: %d %d %d %d",
width, height, bpp, fullScreen);
// if we can't create the default, attempt to create a "safe" window
if ( !Video::setDevice( "OpenGL", 640, 480, 16, true ) )
{
DisplayErrorAlert("Could not find a compatible OpenGL display " \
"resolution. Please check your driver configuration.");
return false;
}
}
return true;
}
//------------------------------------------------------------------------------
bool OpenGLDevice::smCanSwitchBitDepth = false;
//------------------------------------------------------------------------------
OpenGLDevice::OpenGLDevice()
{
initDevice();
}
//------------------------------------------------------------------------------
OpenGLDevice::~OpenGLDevice()
{
}
//------------------------------------------------------------------------------
void OpenGLDevice::addResolution(S32 width, S32 height, bool check)
{
Point2I desktopSize = x86UNIXState->getDesktopSize();
U32 desktopBpp = x86UNIXState->getDesktopBpp();
// don't allow any resolution under this size
if (width < 640 || height < 480)
return;
if (check)
{
// don't allow resolutions that exceed the current desktop size
if (width > desktopSize.x || height > desktopSize.y)
return;
}
if (smCanSwitchBitDepth)
{
// add both 16 and 32 bit resolutions
mResolutionList.push_back(Resolution(width, height, 16));
mResolutionList.push_back(Resolution(width, height, 32));
}
else
{
// add just the desktop resolution
mResolutionList.push_back(Resolution(width, height, desktopBpp));
}
}
//------------------------------------------------------------------------------
void OpenGLDevice::initDevice()
{
mDeviceName = "OpenGL";
mFullScreenOnly = false;
}
//------------------------------------------------------------------------------
void OpenGLDevice::loadResolutions()
{
mResolutionList.clear();
// X cannot switch bit depths on the fly. In case this feature is
// implemented someday, calling this function will let you take
// advantage of it
if (Con::getBoolVariable("$pref::Unix::CanSwitchBitDepth"))
smCanSwitchBitDepth = true;
// add some default resolutions
addResolution(640, 480);
addResolution(800, 600);
addResolution(1024, 768);
addResolution(1152, 864);
addResolution(1280, 1024);
addResolution(1600, 1200);
// specifying full screen should give us the resolutions that the
// X server allows
SDL_Rect** modes = SDL_ListModes(NULL, SDL_FULLSCREEN);
if (modes &&
(modes != (SDL_Rect **)-1))
{
for (int i = 0; modes[i] != NULL; ++i)
{
// do we already have this mode?
bool found = false;
for (Vector<Resolution>::iterator iter = mResolutionList.begin();
iter != mResolutionList.end();
++iter)
{
if (iter->w == modes[i]->w && iter->h == modes[i]->h)
{
found = true;
break;
}
}
if (!found)
// don't check these resolutions because they should be OK
// (and checking might drop resolutions that are higher than the
// current desktop bpp)
addResolution(modes[i]->w, modes[i]->h, false);
}
}
}
//------------------------------------------------------------------------------
bool OpenGLDevice::activate( U32 width, U32 height, U32 bpp, bool fullScreen )
{
if (!setScreenMode(width, height, bpp, fullScreen))
{
Con::printf("Unable to set screen mode.");
return false;
}
// Output some driver info to the console
const char* vendorString = (const char*) glGetString( GL_VENDOR );
const char* rendererString = (const char*) glGetString( GL_RENDERER );
const char* versionString = (const char*) glGetString( GL_VERSION );
Con::printf( "OpenGL driver information:" );
if ( vendorString )
Con::printf( " Vendor: %s", vendorString );
if ( rendererString )
Con::printf( " Renderer: %s", rendererString );
if ( versionString )
Con::printf( " Version: %s", versionString );
GL_EXT_Init();
Con::setVariable( "$pref::Video::displayDevice", mDeviceName );
// Do this here because we now know about the extensions:
if ( gGLState.suppSwapInterval )
setVerticalSync(
!Con::getBoolVariable( "$pref::Video::disableVerticalSync" ) );
Con::setBoolVariable("$pref::OpenGL::allowTexGen", true);
return true;
}
//------------------------------------------------------------------------------
void OpenGLDevice::shutdown()
{
// Shutdown is deferred to Platform::shutdown()
}
//------------------------------------------------------------------------------
static void PrintGLAttributes()
{
int doubleBuf;
int bufferSize, depthSize, stencilSize;
int red, green, blue, alpha;
int aRed, aGreen, aBlue, aAlpha;
SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &doubleBuf);
SDL_GL_GetAttribute(SDL_GL_BUFFER_SIZE, &bufferSize);
SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &depthSize);
SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE, &stencilSize);
SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &red);
SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &green);
SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &blue);
SDL_GL_GetAttribute(SDL_GL_ALPHA_SIZE, &alpha);
SDL_GL_GetAttribute(SDL_GL_ACCUM_RED_SIZE, &aRed);
SDL_GL_GetAttribute(SDL_GL_ACCUM_GREEN_SIZE, &aGreen);
SDL_GL_GetAttribute(SDL_GL_ACCUM_BLUE_SIZE, &aBlue);
SDL_GL_GetAttribute(SDL_GL_ACCUM_ALPHA_SIZE, &aAlpha);
Con::printf("OpenGL Attributes:");
Con::printf(" DoubleBuffer: %d", doubleBuf);
Con::printf(" BufferSize: %d, DepthSize: %d, StencilSize: %d",
bufferSize, depthSize, stencilSize);
Con::printf(" Red: %d, Green: %d, Blue: %d, Alpha: %d",
red, green, blue, alpha);
Con::printf(" Accum Red: %d, Green: %d, Blue: %d, Alpha: %d",
aRed, aGreen, aBlue, aAlpha);
}
//------------------------------------------------------------------------------
bool OpenGLDevice::setScreenMode( U32 width, U32 height, U32 bpp,
bool fullScreen, bool forceIt, bool repaint )
{
// load resolutions, this is done lazily so that we can check the setting
// of smCanSwitchBitDepth, which may be overridden by console
if (mResolutionList.size()==0)
loadResolutions();
if (mResolutionList.size()==0)
{
Con::printf("No resolutions available!");
return false;
}
if (bpp == 0)
{
// bpp comes in as "0" when it is set to "Default"
bpp = x86UNIXState->getDesktopBpp();
}
if (height == 0 || width == 0)
{
// paranoia check. set it to the default to prevent crashing
width = 800;
height = 600;
}
U32 desktopDepth = x86UNIXState->getDesktopBpp();
// if we can't switch bit depths and the requested bpp is not equal to
// the desktop bpp, set bpp to the desktop bpp
if (!smCanSwitchBitDepth &&
bpp != desktopDepth)
{
bpp = desktopDepth;
}
bool IsInList = false;
Resolution NewResolution( width, height, bpp );
// See if the desired resolution is in the list
if ( mResolutionList.size() )
{
for ( int i = 0; i < mResolutionList.size(); i++ )
{
if ( width == mResolutionList[i].w
&& height == mResolutionList[i].h
&& bpp == mResolutionList[i].bpp )
{
IsInList = true;
break;
}
}
if ( !IsInList )
{
Con::printf( "Selected resolution not available: %d %d %d",
width, height, bpp);
return false;
}
}
else
{
AssertFatal( false, "No resolution list found!!" );
}
// Here if we found a matching resolution in the list
bool needResurrect = false;
if (x86UNIXState->windowCreated())
{
Con::printf( "Killing the texture manager..." );
Game->textureKill();
needResurrect = true;
}
// Set the desired GL Attributes
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
// JMQ: NVIDIA 2802+ doesn't like this setting for stencil size
// SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 0);
SDL_GL_SetAttribute(SDL_GL_ACCUM_RED_SIZE, 0);
SDL_GL_SetAttribute(SDL_GL_ACCUM_GREEN_SIZE, 0);
SDL_GL_SetAttribute(SDL_GL_ACCUM_BLUE_SIZE, 0);
SDL_GL_SetAttribute(SDL_GL_ACCUM_ALPHA_SIZE, 0);
// SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
// SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
// SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 6);
// SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
U32 flags = SDL_OPENGL;
if (fullScreen)
flags |= SDL_FULLSCREEN;
Con::printf( "Setting screen mode to %dx%dx%d (%s)...", width, height,
bpp, ( fullScreen ? "fs" : "w" ) );
// set the new video mode
if (SDL_SetVideoMode(width, height, bpp, flags) == NULL)
{
Con::printf("Unable to set SDL Video Mode: %s", SDL_GetError());
return false;
}
PrintGLAttributes();
// clear screen here to prevent buffer garbage from being displayed when
// video mode is switched
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
if ( needResurrect )
{
// Reload the textures:
Con::printf( "Resurrecting the texture manager..." );
Game->textureResurrect();
}
if ( gGLState.suppSwapInterval )
setVerticalSync( !Con::getBoolVariable( "$pref::Video::disableVerticalSync" ) );
// reset the window in platform state
SDL_SysWMinfo sysinfo;
SDL_VERSION(&sysinfo.version);
if (SDL_GetWMInfo(&sysinfo) == 0)
{
Con::printf("Unable to set SDL Video Mode: %s", SDL_GetError());
return false;
}
x86UNIXState->setWindow(sysinfo.info.x11.window);
// set various other parameters
x86UNIXState->setWindowCreated(true);
smCurrentRes = NewResolution;
Platform::setWindowSize ( width, height );
smIsFullScreen = fullScreen;
Con::setBoolVariable( "$pref::Video::fullScreen", smIsFullScreen );
char tempBuf[15];
dSprintf( tempBuf, sizeof( tempBuf ), "%d %d %d",
smCurrentRes.w, smCurrentRes.h, smCurrentRes.bpp );
Con::setVariable( "$pref::Video::resolution", tempBuf );
// post a TORQUE_SETVIDEOMODE user event
SDL_Event event;
event.type = SDL_USEREVENT;
event.user.code = TORQUE_SETVIDEOMODE;
event.user.data1 = NULL;
event.user.data2 = NULL;
SDL_PushEvent(&event);
// reset the caption
SDL_WM_SetCaption(x86UNIXState->getWindowName(), NULL);
// repaint
if ( repaint )
Con::evaluate( "resetCanvas();" );
return true;
}
//------------------------------------------------------------------------------
void OpenGLDevice::swapBuffers()
{
SDL_GL_SwapBuffers();
}
//------------------------------------------------------------------------------
const char* OpenGLDevice::getDriverInfo()
{
const char* vendorString = (const char*) glGetString( GL_VENDOR );
const char* rendererString = (const char*) glGetString( GL_RENDERER );
const char* versionString = (const char*) glGetString( GL_VERSION );
const char* extensionsString = (const char*) glGetString( GL_EXTENSIONS );
U32 bufferLen = ( vendorString ? dStrlen( vendorString ) : 0 )
+ ( rendererString ? dStrlen( rendererString ) : 0 )
+ ( versionString ? dStrlen( versionString ) : 0 )
+ ( extensionsString ? dStrlen( extensionsString ) : 0 )
+ 4;
char* returnString = Con::getReturnBuffer( bufferLen );
dSprintf( returnString, bufferLen, "%s\t%s\t%s\t%s",
( vendorString ? vendorString : "" ),
( rendererString ? rendererString : "" ),
( versionString ? versionString : "" ),
( extensionsString ? extensionsString : "" ) );
return( returnString );
}
//------------------------------------------------------------------------------
bool OpenGLDevice::getGammaCorrection(F32 &g)
{
U16 redtable[256];
U16 greentable[256];
U16 bluetable[256];
if (SDL_GetGammaRamp(redtable, greentable, bluetable) == -1)
{
Con::warnf("getGammaCorrection error: %s", SDL_GetError());
return false;
}
F32 csum = 0.0;
U32 ccount = 0;
for (U16 i = 0; i < 256; ++i)
{
if (i != 0 && redtable[i] != 0 && redtable[i] != 65535)
{
F64 b = (F64) i/256.0;
F64 a = (F64) redtable[i]/65535.0;
F32 c = (F32) (mLog(a)/mLog(b));
csum += c;
++ccount;
}
}
g = csum/ccount;
return true;
}
//------------------------------------------------------------------------------
bool OpenGLDevice::setGammaCorrection(F32 g)
{
U16 redtable[256];
U16 greentable[256];
U16 bluetable[256];
for (U16 i = 0; i < 256; ++i)
redtable[i] = static_cast<U16>(mPow((F32) i/256.0f, g) * 65535.0f);
dMemcpy(greentable,redtable,256*sizeof(U16));
dMemcpy(bluetable,redtable,256*sizeof(U16));
S32 ok = SDL_SetGammaRamp(redtable, greentable, bluetable);
if (ok == -1)
Con::warnf("Error setting gamma correction: %s", SDL_GetError());
return ok != -1;
}
//------------------------------------------------------------------------------
bool OpenGLDevice::setVerticalSync( bool on )
{
Con::printf("WARNING: OpenGLDevice::setVerticalSync is unimplemented %s %d\n", __FILE__, __LINE__);
return false;
#if 0
if ( !gGLState.suppSwapInterval )
return( false );
return( qwglSwapIntervalEXT( on ? 1 : 0 ) );
#endif
}
//------------------------------------------------------------------------------
DisplayDevice* OpenGLDevice::create()
{
return new OpenGLDevice();
}