Function image_set_pixel_u8

Source/astcenccli_toplevel.cpp:1392–1405

* @brief Set the value of a single pixel in an image. * * @param[out] img The output image; must use F32 texture components. * @param x The pixel x coordinate. * @param y The pixel y coordinate. * @param pixel The pixel color value to write. */

 * @param      pixel   The pixel color value to write.
 */
static void image_set_pixel_u8(
	astcenc_image& img,
	size_t x,
	size_t y,
	vint4 pixel
) {
	// We should never escape bounds
	assert(x < img.dim_x);
	assert(y < img.dim_y);
	assert(img.data_type == ASTCENC_TYPE_U8);

	uint8_t* data = static_cast<uint8_t*>(img.data[0]);
	pack_and_store_low_bytes(pixel, data + (4 * img.dim_x * y) + (4 * x));
}

/**
 * @brief Create a copy of @c input with forced unit-length normal vectors.