Beispiel #1
0
    def __init__(self, width, height, drawFunc):
        tex = GL.glGenTextures(1)
        GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)
        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA8, width, height, 0, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, None)
        self.enabled = False
        self._texID = tex
        if bool(FBO.glGenFramebuffersEXT):
            buf = FBO.glGenFramebuffersEXT(1)
            depthbuffer = FBO.glGenRenderbuffersEXT(1)

            FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, buf)

            FBO.glBindRenderbufferEXT(FBO.GL_RENDERBUFFER_EXT, depthbuffer)
            FBO.glRenderbufferStorageEXT(FBO.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT, width, height)

            FBO.glFramebufferRenderbufferEXT(FBO.GL_FRAMEBUFFER_EXT, FBO.GL_DEPTH_ATTACHMENT_EXT, FBO.GL_RENDERBUFFER_EXT, depthbuffer)
            FBO.glFramebufferTexture2DEXT(FBO.GL_FRAMEBUFFER_EXT, FBO.GL_COLOR_ATTACHMENT0_EXT, GL.GL_TEXTURE_2D, tex, 0)

            status = FBO.glCheckFramebufferStatusEXT(FBO.GL_FRAMEBUFFER_EXT)
            if status != FBO.GL_FRAMEBUFFER_COMPLETE_EXT:
                print "glCheckFramebufferStatusEXT", status
                self.enabled = False
                return

            FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, buf)

            with gl.glPushAttrib(GL.GL_VIEWPORT_BIT):
                GL.glViewport(0, 0, width, height)
                drawFunc()

            FBO.glBindFramebufferEXT(FBO.GL_FRAMEBUFFER_EXT, 0)
            FBO.glDeleteFramebuffersEXT(1, [buf])
            FBO.glDeleteRenderbuffersEXT(1, [depthbuffer])
            self.enabled = True
        else:
            GL.glReadBuffer(GL.GL_BACK)
            if bool(window_pos.glWindowPos2dARB):
                pixels = GL.glReadPixels(0, 0, width, height, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE)

            GL.glPushAttrib(GL.GL_VIEWPORT_BIT | GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_TEST | GL.GL_STENCIL_BUFFER_BIT)
            GL.glDisable(GL.GL_STENCIL_TEST)

            GL.glViewport(0, 0, width, height)
            GL.glScissor(0, 0, width, height)
            with gl.glEnable(GL.GL_SCISSOR_TEST):
                drawFunc()

            GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
            GL.glReadBuffer(GL.GL_BACK)
            GL.glCopyTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0, 0, 0, width, height)

            if bool(window_pos.glWindowPos2dARB):
                window_pos.glWindowPos2dARB(0,0)
                GL.glDrawPixels(width, height, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, pixels)

            GL.glPopAttrib()
Beispiel #2
0
 def test_arbwindowpos( self ):
     """Test the ARB window_pos extension will load if available"""
     from OpenGL.GL.ARB.window_pos import glWindowPos2dARB
     if glWindowPos2dARB:
         glWindowPos2dARB( 0.0, 3.0 )
Beispiel #3
0
    def __init__(self, width, height, drawFunc):
        tex = GL.glGenTextures(1)
        GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER,
                          GL.GL_NEAREST)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER,
                          GL.GL_NEAREST)
        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA8, width, height, 0,
                        GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, None)
        self.enabled = False
        self._texID = tex
        if bool(FBO.glGenFramebuffers) and "Intel" not in GL.glGetString(
                GL.GL_VENDOR):
            buf = FBO.glGenFramebuffers(1)
            depthbuffer = FBO.glGenRenderbuffers(1)

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, buf)

            FBO.glBindRenderbuffer(FBO.GL_RENDERBUFFER, depthbuffer)
            FBO.glRenderbufferStorage(FBO.GL_RENDERBUFFER,
                                      GL.GL_DEPTH_COMPONENT, width, height)

            FBO.glFramebufferRenderbuffer(FBO.GL_FRAMEBUFFER,
                                          FBO.GL_DEPTH_ATTACHMENT,
                                          FBO.GL_RENDERBUFFER, depthbuffer)
            FBO.glFramebufferTexture2D(FBO.GL_FRAMEBUFFER,
                                       FBO.GL_COLOR_ATTACHMENT0,
                                       GL.GL_TEXTURE_2D, tex, 0)

            status = FBO.glCheckFramebufferStatus(FBO.GL_FRAMEBUFFER)
            if status != FBO.GL_FRAMEBUFFER_COMPLETE:
                print "glCheckFramebufferStatus", status
                self.enabled = False
                return

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, buf)

            with gl.glPushAttrib(GL.GL_VIEWPORT_BIT):
                GL.glViewport(0, 0, width, height)
                drawFunc()

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, 0)
            FBO.glDeleteFramebuffers(1, [buf])
            FBO.glDeleteRenderbuffers(1, [depthbuffer])
            self.enabled = True
        else:
            GL.glReadBuffer(GL.GL_BACK)
            if bool(window_pos.glWindowPos2dARB):
                pixels = GL.glReadPixels(0, 0, width, height, GL.GL_RGBA,
                                         GL.GL_UNSIGNED_BYTE)

            GL.glPushAttrib(GL.GL_VIEWPORT_BIT | GL.GL_COLOR_BUFFER_BIT
                            | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_TEST
                            | GL.GL_STENCIL_BUFFER_BIT)
            GL.glDisable(GL.GL_STENCIL_TEST)

            GL.glViewport(0, 0, width, height)
            GL.glScissor(0, 0, width, height)
            with gl.glEnable(GL.GL_SCISSOR_TEST):
                drawFunc()

            GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
            GL.glReadBuffer(GL.GL_BACK)
            GL.glCopyTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0, 0, 0, width,
                                   height)

            if bool(window_pos.glWindowPos2dARB):
                window_pos.glWindowPos2dARB(0, 0)
                GL.glDrawPixels(width, height, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE,
                                pixels)

            GL.glPopAttrib()