Function image_set_pixel

Source/astcenccli_toplevel.cpp:1363–1382

* @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 z The pixel z coordinate. * @param pixel The pixel color value to write. */

 * @param      pixel   The pixel color value to write.
 */
static void image_set_pixel(
	astcenc_image& img,
	unsigned int x,
	unsigned int y,
	unsigned int z,
	vfloat4 pixel
) {
	// We should never escape bounds
	assert(x < img.dim_x);
	assert(y < img.dim_y);
	assert(z < img.dim_z);
	assert(img.data_type == ASTCENC_TYPE_F32);

	float* data = static_cast<float*>(img.data[z]);

	data[(4 * img.dim_x * y) + (4 * x    )] = pixel.lane<0>();
	data[(4 * img.dim_x * y) + (4 * x + 1)] = pixel.lane<1>();
	data[(4 * img.dim_x * y) + (4 * x + 2)] = pixel.lane<2>();
	data[(4 * img.dim_x * y) + (4 * x + 3)] = pixel.lane<3>();
}

/**
 * @brief Set the value of a single pixel in an image.