void OpenGLFrameBuffer::Update()
{
if (!CanUpdate())
{
GLRenderer->Flush();
return;
}
Begin2D(false);
DrawRateStuff();
GLRenderer->Flush();
if (GetTrueHeight() != GetHeight())
{
if (GLRenderer != NULL)
GLRenderer->ClearBorders();
Begin2D(false);
}
if (gl_draw_sync || !swapped)
{
Swap();
}
swapped = false;
Unlock();
CheckBench();
}
void OpenGLFrameBuffer::InitializeState()
{
static bool first=true;
if (first)
{
glewInit();
}
gl_LoadExtensions();
Super::InitializeState();
if (first)
{
first=false;
// [BB] For some reason this crashes, if compiled with MinGW and optimization. Has to be investigated.
#ifdef _MSC_VER
gl_PrintStartupLog();
#endif
}
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glDepthFunc(GL_LESS);
glShadeModel(GL_SMOOTH);
glEnable(GL_DITHER);
glEnable(GL_ALPHA_TEST);
glDisable(GL_CULL_FACE);
glDisable(GL_POLYGON_OFFSET_FILL);
glEnable(GL_POLYGON_OFFSET_LINE);
glEnable(GL_BLEND);
glEnable(GL_DEPTH_CLAMP_NV);
glDisable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
glDisable(GL_LINE_SMOOTH);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glAlphaFunc(GL_GEQUAL,0.5f);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
// This was to work around a bug in some older driver. Probably doesn't make sense anymore.
glEnable(GL_FOG);
glDisable(GL_FOG);
glHint(GL_FOG_HINT, GL_FASTEST);
glFogi(GL_FOG_MODE, GL_EXP);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
int trueH = GetTrueHeight();
int h = GetHeight();
glViewport(0, (trueH - h)/2, GetWidth(), GetHeight());
Begin2D(false);
GLRenderer->Initialize();
}
void OpenGLFrameBuffer::GetScreenshotBuffer(const BYTE *&buffer, int &pitch, ESSType &color_type)
{
int w = SCREENWIDTH;
int h = SCREENHEIGHT;
ReleaseScreenshotBuffer();
ScreenshotBuffer = new BYTE[w * h * 3];
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glReadPixels(0,(GetTrueHeight() - GetHeight()) / 2,w,h,GL_RGB,GL_UNSIGNED_BYTE,ScreenshotBuffer);
glPixelStorei(GL_PACK_ALIGNMENT, 4);
pitch = -w*3;
color_type = SS_RGB;
buffer = ScreenshotBuffer + w * 3 * (h - 1);
}
void OpenGLFrameBuffer::InitializeState()
{
static bool first=true;
if (first)
{
ogl_LoadFunctions();
}
gl_LoadExtensions();
Super::InitializeState();
if (first)
{
first=false;
gl_PrintStartupLog();
}
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glDepthFunc(GL_LESS);
glEnable(GL_DITHER);
glDisable(GL_CULL_FACE);
glDisable(GL_POLYGON_OFFSET_FILL);
glEnable(GL_POLYGON_OFFSET_LINE);
glEnable(GL_BLEND);
glEnable(GL_DEPTH_CLAMP);
glDisable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
glDisable(GL_LINE_SMOOTH);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
int trueH = GetTrueHeight();
int h = GetHeight();
glViewport(0, (trueH - h)/2, GetWidth(), GetHeight());
Begin2D(false);
GLRenderer->Initialize();
}
void OpenGLFrameBuffer::GetScreenshotBuffer(const BYTE *&buffer, int &pitch, ESSType &color_type)
{
int w = SCREENWIDTH;
int h = SCREENHEIGHT;
ReleaseScreenshotBuffer();
ScreenshotBuffer = new BYTE[w * h * 3];
// Stereo3d might have an incomplete framebuffer bound, so unbind it for screenshot.
int currentFramebuffer = 0;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, ¤tFramebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glReadPixels(0,(GetTrueHeight() - GetHeight()) / 2,w,h,GL_RGB,GL_UNSIGNED_BYTE,ScreenshotBuffer);
glPixelStorei(GL_PACK_ALIGNMENT, 4);
pitch = -w*3;
color_type = SS_RGB;
buffer = ScreenshotBuffer + w * 3 * (h - 1);
// Restore offscreen hud image, if any, for stereo 3d
if (currentFramebuffer != 0)
glBindFramebuffer(GL_FRAMEBUFFER, currentFramebuffer);
}