Public Member Functions
	C4TextureShapeActivationMap (int32_t block_x0, int32_t block_y0, int32_t n_blocks_x, int32_t n_blocks_y, int32_t num_shapes)

int32_t	Get (int32_t block_x, int32_t block_y, int32_t shape_idx, int32_t xpart, int32_t ypart, uint8_t *bg_pix) const

void	Add (int32_t block_x, int32_t block_y, int32_t shape_idx, int32_t xpart, int32_t ypart, uint8_t back_pix)

Detailed Description

Definition at line 123 of file C4TextureShape.cpp.

Constructor & Destructor Documentation

◆ C4TextureShapeActivationMap()

C4TextureShapeActivationMap::C4TextureShapeActivationMap	(	int32_t	block_x0,
		int32_t	block_y0,
		int32_t	n_blocks_x,
		int32_t	n_blocks_y,
		int32_t	num_shapes
	)

inline

Definition at line 136 of file C4TextureShape.cpp.

                                                                                                                                 : block_x0(block_x0), block_y0(block_y0), n_blocks_x(n_blocks_x), n_blocks_y(n_blocks_y), num_shapes(num_shapes)
     {
         activation.resize(n_blocks_x * n_blocks_y * num_shapes * 4, 0);
         back_pix.resize(n_blocks_x * n_blocks_y * num_shapes * 4, 0u);
     }

Member Function Documentation

◆ Add()

void C4TextureShapeActivationMap::Add	(	int32_t	block_x,
		int32_t	block_y,
		int32_t	shape_idx,
		int32_t	xpart,
		int32_t	ypart,
		uint8_t	back_pix
	)

Definition at line 164 of file C4TextureShape.cpp.

 {
     // activation map access
     int32_t idx = Idx(block_x, block_y, shape_idx, xpart, ypart);
     if (idx < 0)
     {
         // This can happen for maps in which the shape is too large or simply at landscape borders. So ignore.
         return;
     }
     ++activation[idx];
     back_pix[idx] = bg_pix;
 }

Referenced by C4TextureShape::Draw().

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◆ Get()

int32_t C4TextureShapeActivationMap::Get	(	int32_t	block_x,
		int32_t	block_y,
		int32_t	shape_idx,
		int32_t	xpart,
		int32_t	ypart,
		uint8_t *	bg_pix
	)		const

Definition at line 154 of file C4TextureShape.cpp.

 {
     // activation map access
     int32_t idx = Idx(block_x, block_y, shape_idx, xpart, ypart);
     assert(idx >= 0);
     if (idx < 0) return 0;
     *bg_pix = back_pix[idx];
     return activation[idx];
 }