Direct3D integration
These functions are declared in the following header file:
#include <allegro5/allegro_direct3d.h>
al_get_d3d_device
LPDIRECT3DDEVICE9 al_get_d3d_device(ALLEGRO_DISPLAY *display)
Returns the Direct3D device of the display. The return value is undefined if the display was not created with the Direct3D flag.
Returns: A pointer to the Direct3D device.
al_get_d3d_system_texture
LPDIRECT3DTEXTURE9 al_get_d3d_system_texture(ALLEGRO_BITMAP *bitmap)
Returns the system texture (stored with the D3DPOOL_SYSTEMMEM flags). This texture is used for the render-to-texture feature set.
Returns: A pointer to the Direct3D system texture.
al_get_d3d_video_texture
LPDIRECT3DTEXTURE9 al_get_d3d_video_texture(ALLEGRO_BITMAP *bitmap)
Returns the video texture (stored with the D3DPOOL_DEFAULT or D3DPOOL_MANAGED flags depending on whether render-to-texture is enabled or disabled respectively).
Returns: A pointer to the Direct3D video texture.
al_have_d3d_non_pow2_texture_support
bool al_have_d3d_non_pow2_texture_support(void)
Returns whether the Direct3D device supports textures whose dimensions are not powers of two.
Returns: True if device suports NPOT textures, false otherwise.
al_have_d3d_non_square_texture_support
bool al_have_d3d_non_square_texture_support(void)
Returns whether the Direct3D device supports textures that are not square.
Returns: True if the Direct3D device suports non-square textures, false otherwise.
al_get_d3d_texture_position
void al_get_d3d_texture_position(ALLEGRO_BITMAP *bitmap, int *u, int *v)
Returns the u/v coordinates for the top/left corner of the bitmap within the used texture, in pixels.
Parameters:
- bitmap - ALLEGRO_BITMAP to examine
- u - Will hold the returned u coordinate
- v - Will hold the returned v coordinate
al_is_d3d_device_lost
bool al_is_d3d_device_lost(ALLEGRO_DISPLAY *display)
Returns a boolean indicating whether or not the Direct3D device belonging to the given display is in a lost state.
Parameters:
- display - The display that the device you wish to check is attached to