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/** @file shader.h
*
* @brief Functions to create, manipulate, and destroy GLSL shaders.
*/
#ifndef HONEY_SHADER_H
#define HONEY_SHADER_H
#include "common.h"
#include "light.h"
typedef int honey_shader;
/** @brief Load a shader.
*
* @param[out] shader Pointer to the shader destination
*
* @param[in] vertex_shader_path The path to the vertex shader source code
* @param[in] fragment_shader_path The path to the fragment shader source code
*
* @return The result of the shader load.
*/
honey_result honey_shader_load(honey_shader* shader,
char* vertex_shader_path,
char* fragment_shader_path);
/** @brief Create a shader from code strings.
*
* @param[out] shader Pointer to the shader destination.
* @param[in] vertex_shader_code Zero-terminated string containing the vertex shader code to compile
* @param[in] fragment_shader_code Zero-terminated string containing the fragment shader code to compile
*
* @return The result of the shader creation.
*/
honey_result honey_shader_new(honey_shader* shader,
char* vertex_shader_code,
char* fragment_shader_code);
/** @brief Set an integer uniform.
*
* @param[in] shader The shader to which the uniform belongs
* @param[in] int_name The name of the integer uniform
* @param[in] value The value of the integer uniform
*/
void honey_shader_set_int(honey_shader shader,
char* int_name,
int value);
/** @brief Set a float uniform.
*
* @param[in] shader The shader to which the uniform belongs
* @param[in] float_name The name of the float uniform
* @param[in] value The value of the float uniform
*/
void honey_shader_set_float(honey_shader shader,
char* float_name,
float value);
/** @brief Set a vec3 uniform.
* @param[in] shader The shader to which the uniform belongs
* @param[in] vector_name The name of the vec3 uniform
* @param[in] value The value of the vector uniform
*/
void honey_shader_set_vec3(honey_shader shader,
char* vector_name,
vec3 value);
/** @brief Set a mat3 uniform.
*
* @param[in] shader The shader to which the uniform belongs
* @param[in] matrix_name The name of the matrix uniform
* @param[in] value The value of the matrix uniform
*/
void honey_shader_set_mat3(honey_shader shader,
char* matrix_name,
mat3 value);
/** @brief Set a mat4 uniform.
*
* @param[in] shader The shader to which the uniform belongs
* @param[in] matrix_name The name of the matrix uniform
* @param[in] value The value of the matrix uniform
*/
void honey_shader_set_mat4(honey_shader shader,
char* matrix_name,
mat4 value);
/** @brief Set a point_light uniform.
*
* @param[in] shader The shader to which the uniform belongs
* @param[in] point_light_index The index of the light to set
* @param[in] light The honey_point_light to set
*/
void honey_shader_set_point_light(honey_shader shader,
int point_light_index,
honey_point_light light);
/** @brief Set a directional_light uniform.
*
* @param[in] shader The shader to which the uniform belongs
* @param[in] directional_light_index The index of the light to set
* @param[in] light The honey_directional_light to set
*/
void honey_shader_set_directional_light(honey_shader shader,
int directional_light_index,
honey_directional_light light);
/** @brief Use a shader.
*/
#define honey_shader_use glUseProgram
/** @brief delete a shader.
*/
#define honey_shader_delete glDeleteProgram
#endif
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