/** Check if SwapBuffers() swap or copy back to front
* @param hDC OpenGL device contect.
* @return True if the SwapBuffer function copies back to front.
*/
bool IsSwapBufferCopyingBackToFront(HDC hDC)
{
GLbyte bColorDraw[] = {5, 5, 0},
bColorSeen[3];
float fViewport[4];
// Clear screen
glClear(GL_COLOR_BUFFER_BIT);
// Swap buffers
glFlush();
SwapBuffers(hDC);
// Display something
glLoadIdentity();
glClear(GL_COLOR_BUFFER_BIT);
glPushAttrib(GL_ENABLE_BIT | GL_CURRENT_BIT);
glDisable(GL_TEXTURE_2D);
glColor3bv(bColorDraw);
glBegin(GL_TRIANGLES);
glVertex2f(0.0f, 0.0f);
glVertex2f(0.0f, 5.0f);
glVertex2f(5.0f, 0.0f);
glEnd();
glPopAttrib();
// Swap buffers
glFlush();
SwapBuffers(hDC);
// Check if it's still displayed
glGetFloatv(GL_VIEWPORT, fViewport);
glReadPixels((int)fViewport[0]+1, (int)(fViewport[1]+fViewport[3])-1, 1, 1, GL_RGB, GL_BYTE, bColorSeen);
return (abs(bColorSeen[0]-bColorDraw[0]) <= 2 && abs(bColorSeen[1]-bColorDraw[1]) <= 2 && abs(bColorSeen[2]-bColorDraw[2]) <= 2);
}
void GeomRenderer::sendColor(GLuint colorIndex)
{
assert(colorData.size == 3 || colorData.size == 4);
switch(colorData.type)
{
case GL_BYTE:
if (colorData.size == 3) glColor3bv((const GLbyte*)((const char*)colorData.pointer + colorIndex*colorData.stride));
if (colorData.size == 4) glColor4bv((const GLbyte*)((const char*)colorData.pointer + colorIndex*colorData.stride));
break;
case GL_UNSIGNED_BYTE:
if (colorData.size == 3) glColor3ubv((const GLubyte*)((const char*)colorData.pointer + colorIndex*colorData.stride));
if (colorData.size == 4) glColor4ubv((const GLubyte*)((const char*)colorData.pointer + colorIndex*colorData.stride));
break;
case GL_SHORT:
if (colorData.size == 3) glColor3sv((const GLshort*)((const char*)colorData.pointer + colorIndex*colorData.stride));
if (colorData.size == 4) glColor4sv((const GLshort*)((const char*)colorData.pointer + colorIndex*colorData.stride));
break;
case GL_UNSIGNED_SHORT:
if (colorData.size == 3) glColor3usv((const GLushort*)((const char*)colorData.pointer + colorIndex*colorData.stride));
if (colorData.size == 4) glColor4usv((const GLushort*)((const char*)colorData.pointer + colorIndex*colorData.stride));
break;
case GL_INT:
if (colorData.size == 3) glColor3iv((const GLint*)((const char*)colorData.pointer + colorIndex*colorData.stride));
if (colorData.size == 4) glColor4iv((const GLint*)((const char*)colorData.pointer + colorIndex*colorData.stride));
break;
case GL_UNSIGNED_INT:
if (colorData.size == 3) glColor3uiv((const GLuint*)((const char*)colorData.pointer + colorIndex*colorData.stride));
if (colorData.size == 4) glColor4uiv((const GLuint*)((const char*)colorData.pointer + colorIndex*colorData.stride));
break;
case GL_FLOAT:
if (colorData.size == 3) glColor3fv((const GLfloat*)((const char*)colorData.pointer + colorIndex*colorData.stride));
if (colorData.size == 4) glColor4fv((const GLfloat*)((const char*)colorData.pointer + colorIndex*colorData.stride));
break;
case GL_DOUBLE:
if (colorData.size == 3) glColor3dv((const GLdouble*)((const char*)colorData.pointer + colorIndex*colorData.stride));
if (colorData.size == 4) glColor4dv((const GLdouble*)((const char*)colorData.pointer + colorIndex*colorData.stride));
break;
}
}
M(void, glColor3bv, jobject v) {
glColor3bv(BUFF(GLbyte, v));
}
inline void glColor3v( const GLbyte * v ) { glColor3bv( v ); }
void __glXDisp_Color3bv(GLbyte *pc)
{
glColor3bv(
(GLbyte *)(pc + 0)
);
}
