void
JXMesaCamera::CloseMesa()
{
XMesaDestroyBuffer(itsXMBuffer);
XMesaDestroyContext(itsXMContext);
XMesaDestroyVisual(itsXMVisual);
}
/**
* For GLX_EXT_texture_from_pixmap
*/
XMesaBuffer
XMesaCreatePixmapTextureBuffer(XMesaVisual v, XMesaPixmap p,
XMesaColormap cmap,
int format, int target, int mipmap)
{
GET_CURRENT_CONTEXT(ctx);
XMesaBuffer b;
GLuint width, height;
assert(v);
b = create_xmesa_buffer((XMesaDrawable) p, PIXMAP, v, cmap);
if (!b)
return NULL;
/* get pixmap size, update framebuffer/renderbuffer dims */
xmesa_get_window_size(v->display, b, &width, &height);
_mesa_resize_framebuffer(NULL, &(b->mesa_buffer), width, height);
if (target == 0) {
/* examine dims */
if (ctx->Extensions.ARB_texture_non_power_of_two) {
target = GLX_TEXTURE_2D_EXT;
}
else if ( _mesa_bitcount(width) == 1
&& _mesa_bitcount(height) == 1) {
/* power of two size */
if (height == 1) {
target = GLX_TEXTURE_1D_EXT;
}
else {
target = GLX_TEXTURE_2D_EXT;
}
}
else if (ctx->Extensions.NV_texture_rectangle) {
target = GLX_TEXTURE_RECTANGLE_EXT;
}
else {
/* non power of two textures not supported */
XMesaDestroyBuffer(b);
return 0;
}
}
b->TextureTarget = target;
b->TextureFormat = format;
b->TextureMipmap = mipmap;
if (!initialize_visual_and_buffer(v, b, (XMesaDrawable) p, cmap)) {
xmesa_free_buffer(b);
return NULL;
}
return b;
}
/*
* Look for XMesaBuffers whose X window has been destroyed.
* Deallocate any such XMesaBuffers.
*/
void XMesaGarbageCollect( XMesaDisplay* dpy )
{
XMesaBuffer b, next;
for (b=XMesaBufferList; b; b=next) {
next = b->Next;
if (b->display && b->display == dpy && b->frontxrb->drawable && b->type == WINDOW) {
XSync(b->display, False);
if (!window_exists( b->display, b->frontxrb->drawable )) {
/* found a dead window, free the ancillary info */
XMesaDestroyBuffer( b );
}
}
}
}
