/**
* As above, but for glViewport. Most apps call glViewport before
* glClear when a window is resized.
*/
static void SPU_APIENTRY trapViewport(GLint x, GLint y, GLsizei w, GLsizei h)
{
stubCheckWindowsState();
/* call the original SPU glViewport function */
if (!stub.viewportHack)
{
origViewport(x, y, w, h);
}
else
{
ContextInfo *context = stubGetCurrentContext();
int winX, winY;
unsigned int winW, winH;
WindowInfo *pWindow;
pWindow = context->currentDrawable;
stubGetWindowGeometry(pWindow, &winX, &winY, &winW, &winH);
origViewport(0, 0, winW, winH);
}
}
static void SPU_APIENTRY trapDrawBuffer(GLenum buf)
{
stubCheckWindowsState();
origDrawBuffer(buf);
}
static void SPU_APIENTRY trapSwapBuffers(GLint window, GLint flags)
{
stubCheckWindowsState();
origSwapBuffers(window, flags);
}
/**
* Override the head SPU's glClear function.
* We're basically trapping this function so that we can poll the
* application window size at a regular interval.
*/
static void SPU_APIENTRY trapClear(GLbitfield mask)
{
stubCheckWindowsState();
/* call the original SPU glClear function */
origClear(mask);
}
/**
* As above, but for glViewport. Most apps call glViewport before
* glClear when a window is resized.
*/
static void SPU_APIENTRY trapViewport(GLint x, GLint y, GLsizei w, GLsizei h)
{
stubCheckWindowsState();
/* call the original SPU glViewport function */
origViewport(x, y, w, h);
}