/**
* Resizes screen buffer to fit new screen geometry.
* Call on screen change events like rotation.
*
* @param width new width of the screen buffer
* @param height new height of the screen buffer
* @return ALL_OK if successful, OUT_OF_MEMORY in the case of
* not enough memory to reallocate the buffer
*/
MIDPError gxj_resize_screen_buffer(int width, int height) {
if (gxj_system_screen_buffer.pixelData != NULL) {
if (gxj_system_screen_buffer.width == width &&
gxj_system_screen_buffer.height == height) {
gxj_reset_screen_buffer();
// no need to reallocate buffer, return
return ALL_OK;
} else {
// IMPL_NOTE: It is up to caller to check that
// new screen buffer size is not bigger than
// the screen itself, and to clear screen
// content on resizing
// free screen buffer
gxj_free_screen_buffer();
}
}
// allocate resized screen buffer
return gxj_init_screen_buffer(width, height);
}
/** Allocate system screen buffer */
void initScreenBuffer(int width, int height) {
if (gxj_init_screen_buffer(width, height) != ALL_OK) {
fprintf(stderr, "Failed to allocate screen buffer\n");
exit(1);
}
}