75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/*
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* This file is part of the DXX-Rebirth project <http://www.dxx-rebirth.com/>.
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* It is copyright by its individual contributors, as recorded in the
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* project's Git history. See COPYING.txt at the top level for license
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* terms and a link to the Git history.
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*/
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/* prototypes for function calls between files within the OpenGL module */
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#pragma once
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#ifdef OGL
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#include "ogl_init.h" // interface to OpenGL module
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#include "gr.h"
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#ifdef __cplusplus
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/* I assume this ought to be >= MAX_BITMAP_FILES in piggy.h? */
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#define OGL_TEXTURE_LIST_SIZE 20000
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void ogl_init_texture_list_internal(void);
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void ogl_smash_texture_list_internal(void);
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void ogl_vivify_texture_list_internal(void);
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namespace dcx {
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extern int linedotscale;
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extern int GL_TEXTURE_2D_enabled;
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}
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#define OGL_SET_FEATURE_STATE(G,V,F) static_cast<void>(G != V && (G = V, F, 0))
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#define OGL_ENABLE(a) OGL_SET_FEATURE_STATE(GL_##a##_enabled, 1, glEnable(GL_##a))
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#define OGL_DISABLE(a) OGL_SET_FEATURE_STATE(GL_##a##_enabled, 0, glDisable(GL_##a))
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//#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);)
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//#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);)
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//#define OGL_SETSTATE(a,s,f) {if (a ## _state!=s) {f;a ## _state=s;}}
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//#define OGL_TEXENV(p,m) OGL_SETSTATE(p,m,glTexEnvi(GL_TEXTURE_ENV, p,m));
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//#define OGL_TEXPARAM(p,m) OGL_SETSTATE(p,m,glTexParameteri(GL_TEXTURE_2D,p,m))
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namespace dcx {
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extern unsigned last_width,last_height;
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static inline void OGL_VIEWPORT(const unsigned x, const unsigned y, const unsigned w, const unsigned h)
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{
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if (w!=last_width || h!=last_height)
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{
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last_width = w;
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last_height = h;
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glViewport(x,grd_curscreen->sc_canvas.cv_bitmap.bm_h-y-h,w,h);
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}
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}
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}
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#ifdef dsx
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namespace dsx {
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//platform specific funcs
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extern void ogl_swap_buffers_internal(void);
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}
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#endif
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//whee
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#define CPAL2Tr(c) ((gr_current_pal[c].r)/63.0)
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#define CPAL2Tg(c) ((gr_current_pal[c].g)/63.0)
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#define CPAL2Tb(c) ((gr_current_pal[c].b)/63.0)
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#define PAL2Tr(c) (((*ogl_pal)[c].r)/63.0)
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#define PAL2Tg(c) (((*ogl_pal)[c].g)/63.0)
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#define PAL2Tb(c) (((*ogl_pal)[c].b)/63.0)
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//inline GLfloat PAL2Tr(int c);
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//inline GLfloat PAL2Tg(int c);
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//inline GLfloat PAL2Tb(int c);
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#endif
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#endif
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