/*
* This file is part of the DXX-Rebirth project .
* It is copyright by its individual contributors, as recorded in the
* project's Git history. See COPYING.txt at the top level for license
* terms and a link to the Git history.
*/
/* prototypes for function calls between files within the OpenGL module */
#pragma once
#include "dxxsconf.h"
#if DXX_USE_OGL
#include "ogl_init.h" // interface to OpenGL module
#include "gr.h"
#ifdef __cplusplus
void ogl_init_texture_list_internal(void);
void ogl_smash_texture_list_internal(void);
namespace dcx {
extern int linedotscale;
extern int GL_TEXTURE_2D_enabled;
}
#define OGL_SET_FEATURE_STATE(G,V,F) static_cast(G != V && (G = V, F, 0))
#define OGL_ENABLE(a) OGL_SET_FEATURE_STATE(GL_##a##_enabled, 1, glEnable(GL_##a))
#define OGL_DISABLE(a) OGL_SET_FEATURE_STATE(GL_##a##_enabled, 0, glDisable(GL_##a))
//#define OGL_TEXCLAMP() OGL_ENABLE2(GL_texclamp,glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);)
//#define OGL_TEXREPEAT() OGL_DISABLE2(GL_texclamp,glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);)
//#define OGL_SETSTATE(a,s,f) {if (a ## _state!=s) {f;a ## _state=s;}}
//#define OGL_TEXENV(p,m) OGL_SETSTATE(p,m,glTexEnvi(GL_TEXTURE_ENV, p,m));
//#define OGL_TEXPARAM(p,m) OGL_SETSTATE(p,m,glTexParameteri(GL_TEXTURE_2D,p,m))
namespace dcx {
extern unsigned last_width,last_height;
static inline void OGL_VIEWPORT(const unsigned x, const unsigned y, const unsigned w, const unsigned h)
{
if (w!=last_width || h!=last_height)
{
last_width = w;
last_height = h;
glViewport(x,grd_curscreen->sc_canvas.cv_bitmap.bm_h-y-h,w,h);
}
}
#ifdef dsx
//platform specific funcs
void ogl_swap_buffers_internal();
#endif
}
#endif
#endif