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Add OpenGL support.

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This commit is contained in:
LuisAntonRebollo 2014-11-08 17:41:17 +01:00
parent c354f59b72
commit dd08fd2e7d
55 changed files with 2957 additions and 802 deletions
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98
Engine/source/gfx/gl/gfxGLWindowTarget.cpp
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@ -25,9 +25,19 @@
#include "gfx/gl/gfxGLWindowTarget.h"
#include "gfx/gl/gfxGLTextureObject.h"
#include "gfx/gl/gfxGLUtils.h"
#include "postFx/postEffect.h"
GFX_ImplementTextureProfile( BackBufferDepthProfile,
GFXTextureProfile::DiffuseMap,
GFXTextureProfile::PreserveSize |
GFXTextureProfile::NoMipmap |
GFXTextureProfile::ZTarget |
GFXTextureProfile::Pooled,
GFXTextureProfile::NONE );
GFXGLWindowTarget::GFXGLWindowTarget(PlatformWindow *win, GFXDevice *d)
: GFXWindowTarget(win), mDevice(d), mContext(NULL), mFullscreenContext(NULL)
, mCopyFBO(0), mBackBufferFBO(0)
{
win->appEvent.notify(this, &GFXGLWindowTarget::_onAppSignal);
}
@ -59,21 +69,85 @@ void GFXGLWindowTarget::resolveTo(GFXTextureObject* obj)
AssertFatal(dynamic_cast<GFXGLTextureObject*>(obj), "GFXGLTextureTarget::resolveTo - Incorrect type of texture, expected a GFXGLTextureObject");
GFXGLTextureObject* glTexture = static_cast<GFXGLTextureObject*>(obj);
if( gglHasExtension(ARB_copy_image) )
{
if(mBackBufferColorTex.getWidth() == glTexture->getWidth()
&& mBackBufferColorTex.getHeight() == glTexture->getHeight()
&& mBackBufferColorTex.getFormat() == glTexture->getFormat())
{
glCopyImageSubData(
static_cast<GFXGLTextureObject*>(mBackBufferColorTex.getPointer())->getHandle(), GL_TEXTURE_2D, 0, 0, 0, 0,
glTexture->getHandle(), GL_TEXTURE_2D, 0, 0, 0, 0,
getSize().x, getSize().y, 1);
return;
}
}
PRESERVE_FRAMEBUFFER();
if(!mCopyFBO)
{
glGenFramebuffers(1, &mCopyFBO);
}
GLuint dest;
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mCopyFBO);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, glTexture->getHandle(), 0);
glGenFramebuffersEXT(1, &dest);
glBindFramebuffer(GL_READ_FRAMEBUFFER, mBackBufferFBO);
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, dest);
glFramebufferTexture2DEXT(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, glTexture->getHandle(), 0);
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
glBlitFramebufferEXT(0, 0, getSize().x, getSize().y,
glBlitFramebuffer(0, 0, getSize().x, getSize().y,
0, 0, glTexture->getWidth(), glTexture->getHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST);
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
glDeleteFramebuffersEXT(1, &dest);
}
inline void GFXGLWindowTarget::_setupAttachments()
{
glBindFramebuffer( GL_FRAMEBUFFER, mBackBufferFBO);
GFXGL->getOpenglCache()->setCacheBinded(GL_FRAMEBUFFER, mBackBufferFBO);
const Point2I dstSize = getSize();
mBackBufferColorTex.set(dstSize.x, dstSize.y, getFormat(), &PostFxTargetProfile, "backBuffer");
GFXGLTextureObject *color = static_cast<GFXGLTextureObject*>(mBackBufferColorTex.getPointer());
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, color->getHandle(), 0);
mBackBufferDepthTex.set(dstSize.x, dstSize.y, GFXFormatD24S8, &BackBufferDepthProfile, "backBuffer");
GFXGLTextureObject *depth = static_cast<GFXGLTextureObject*>(mBackBufferDepthTex.getPointer());
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depth->getHandle(), 0);
}
void GFXGLWindowTarget::makeActive()
{
if(mBackBufferFBO)
{
glBindFramebuffer( GL_FRAMEBUFFER, mBackBufferFBO);
GFXGL->getOpenglCache()->setCacheBinded(GL_FRAMEBUFFER, mBackBufferFBO);
}
else
{
glGenFramebuffers(1, &mBackBufferFBO);
_setupAttachments();
CHECK_FRAMEBUFFER_STATUS();
}
}
bool GFXGLWindowTarget::present()
{
PRESERVE_FRAMEBUFFER();
const Point2I srcSize = mBackBufferColorTex.getWidthHeight();
const Point2I dstSize = getSize();
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBindFramebuffer(GL_READ_FRAMEBUFFER, mBackBufferFBO);
// OpenGL render upside down for make render more similar to DX.
// Final screen are corrected here
glBlitFramebuffer(
0, 0, srcSize.x, srcSize.y,
0, dstSize.y, dstSize.x, 0, // Y inverted
GL_COLOR_BUFFER_BIT, GL_NEAREST);
_WindowPresent();
if(srcSize != dstSize || mBackBufferDepthTex.getWidthHeight() != dstSize)
_setupAttachments();
return true;
}