#ifndef HALIDE_HALIDERUNTIMEOPENGLCOMPUTE_H
#define HALIDE_HALIDERUNTIMEOPENGLCOMPUTE_H
#include "HalideRuntime.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \file
* Routines specific to the Halide OpenGL Compute runtime.
*/
extern const struct halide_device_interface_t *halide_openglcompute_device_interface();
/** These are forward declared here to allow clients to override the
* Halide Glsl runtime. Do not call them. */
// @{
/** This function sets up OpenGL context, loads relevant GL functions, then
* compiles src OpenGL compute shader into OpenGL program and stores it for future use.
*/
extern int halide_openglcompute_initialize_kernels(void *user_context, void **state_ptr,
const char *src, int size);
/** This function triggers execution of OpenGL program built around compute shader.
* Execution of the shader is parallelized into given number of blocks and threads.
*
* This function doesn't wait for the completion of the shader, but it sets memory
* barrier which forces successive retrieval of output data to wait until shader is done.
*/
extern int halide_openglcompute_run(void *user_context,
void *state_ptr,
const char *entry_name,
int blocksX, int blocksY, int blocksZ,
int threadsX, int threadsY, int threadsZ,
int shared_mem_bytes,
size_t arg_sizes[],
void *args[],
int8_t is_buffer[],
int num_attributes,
float* vertex_buffer,
int num_coords_dim0,
int num_coords_dim1);
// @}
/** This function retrieves pointers to OpenGL API functions.
*
* You may have to implement this yourself. Halide only provides implementations
* for some platforms."
*/
void *halide_opengl_get_proc_address(void *user_context, const char *name);
/** This function creates an OpenGL context for use by the OpenGL backend.
*
* You may have to implement this yourself as well. Halide only provides
* implementations for some platforms."
*/
int halide_opengl_create_context(void *user_context);
#ifdef __cplusplus
} // End extern "C"
#endif
#endif // HALIDE_HALIDERUNTIMEOPENGLCOMPUTE_H