#pragma once

#include <kinc/global.h>

#include <kinc/backend/graphics5/compute.h>

#include <kinc/graphics5/constantlocation.h>
#include <kinc/graphics5/textureunit.h>

/*! \file compute.h
    \brief Provides support for running compute-shaders.
*/

#ifdef __cplusplus
extern "C" {
#endif

typedef struct kinc_g5_compute_shader {
	kinc_g5_compute_shader_impl impl;
} kinc_g5_compute_shader;

/// <summary>
/// Initialize a compute-shader from system-specific shader-data.
/// </summary>
/// <param name="shader">The shader-object to initialize</param>
/// <param name="source">A pointer to system-specific shader-data</param>
/// <param name="length">Length of the shader-data in bytes</param>
KINC_FUNC void kinc_g5_compute_shader_init(kinc_g5_compute_shader *shader, void *source, int length);

/// <summary>
/// Desotry a shader-object
/// </summary>
/// <param name="shader">The shader-object to destroy</param>
KINC_FUNC void kinc_g5_compute_shader_destroy(kinc_g5_compute_shader *shader);

#ifndef KINC_KONG
/// <summary>
/// Finds the location of a constant/uniform inside of a shader.
/// </summary>
/// <param name="shader">The shader to look into</param>
/// <param name="name">The constant/uniform-name to look for</param>
/// <returns>The found constant-location</returns>
KINC_FUNC kinc_g5_constant_location_t kinc_g5_compute_shader_get_constant_location(kinc_g5_compute_shader *shader, const char *name);

/// <summary>
/// Finds a texture-unit inside of a shader.
/// </summary>
/// <param name="shader">The shader to look into</param>
/// <param name="name">The texture-name to look for</param>
/// <returns>The found texture-unit</returns>
KINC_FUNC kinc_g5_texture_unit_t kinc_g5_compute_shader_get_texture_unit(kinc_g5_compute_shader *shader, const char *name);
#endif

#ifdef __cplusplus
}
#endif