src/hardware/voodoo_opengl.h

 /*
 *  Copyright (C) 2002-2020  The DOSBox Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */


#ifndef DOSBOX_VOODOO_OPENGL_H
#define DOSBOX_VOODOO_OPENGL_H

#include <stdlib.h>
#include <math.h>
#include <map>

#include "dosbox.h"
#include "cross.h"


#if C_OPENGL

#include "voodoo_vogl.h"
#include "voodoo_types.h"


/* texture data */
struct ogl_texture_data {
        GLuint texID;
        bool enable;
};

/* triangle vertex map data */
struct ogl_vertex_map_data {
        float sw,tw,z,w;
        float s,t;
        float lodblend;
};

/* triangle vertex data */
struct ogl_vertex_data {
        float x,y,d,w,z;
        float r,g,b,a;
        float fogblend;
        ogl_vertex_map_data m[2];
};

struct ogl_texmap {
        bool valid_data;
        bool valid_pal;
        UINT32 format;
        UINT32 current_id;

        std::map<const UINT32, GLuint>* ids;
};

#endif


bool voodoo_ogl_init(voodoo_state *v);
void voodoo_ogl_leave(bool leavemode);
void voodoo_ogl_shutdown(voodoo_state *v);

void voodoo_ogl_set_window(voodoo_state *v);
void voodoo_ogl_swap_buffer(void);
void voodoo_ogl_vblank_flush(void);

void voodoo_ogl_update_dimensions(void);
void voodoo_ogl_clear(void);
void voodoo_ogl_fastfill(void);

void voodoo_ogl_clip_window(voodoo_state *v);
void voodoo_ogl_texture_clear(UINT32 texbase, int TMU);
void voodoo_ogl_invalidate_paltex(void);

void voodoo_ogl_draw_pixel(int x, int y, bool has_rgb, bool has_alpha, int r, int g, int b, int a);
void voodoo_ogl_draw_z(int x, int y, int z);
void voodoo_ogl_draw_pixel_pipeline(int x, int y, int r, int g, int b);
UINT32 voodoo_ogl_read_pixel(int x, int y);

void voodoo_ogl_draw_triangle(poly_extra_data *extra);

#endif