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/*
* Seven Kingdoms: Ancient Adversaries
*
* Copyright 1997,1998 Enlight Software Ltd.
* Copyright 2010,2015 Jesse Allen
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
//Filename : OVGA.H
//Description : VGA management class (SDL version)
#ifndef __OVGA_H
#define __OVGA_H
#include <OVGABUF.h>
#include <COLOR.h>
#include <SDL.h>
//----------- define constants ----------//
#define VGA_WIDTH 800
#define VGA_HEIGHT 600
#define VGA_BPP 8
#define VGA_PALETTE_SIZE 256
#define MAX_BRIGHTNESS_ADJUST_DEGREE 10
#define IF_LIGHT_BORDER_COLOR V_WHITE
#define IF_DARK_BORDER_COLOR V_BLACK
#define IF_UP_BRIGHTNESS_ADJUST 5
#define IF_DOWN_BRIGHTNESS_ADJUST 6
//-------- Define macro functions ---------//
#define get_bitmap_width(bitmapPtr) (*(short*)bitmapPtr)
#define get_bitmap_height(bitmapPtr) (*((short*)bitmapPtr+1))
//-------- Define modes --------//
enum MouseInputMode
{
MOUSE_INPUT_ABS,
MOUSE_INPUT_REL,
MOUSE_INPUT_REL_WARP,
};
enum WinGrab
{
WINGRAB_OFF,
WINGRAB_ON,
WINGRAB_TOGGLE,
WINGRAB_FORCE,
WINGRAB_RESTORE,
};
//-------- Define class Vga ----------------//
class ColorTable;
class Vga
{
private:
SDL_Window* window;
SDL_Renderer* renderer;
SDL_Texture* texture;
SDL_Surface* target;
SDL_Color game_pal[VGA_PALETTE_SIZE];
SDL_Color* custom_pal;
int win_grab_forced;
int win_grab_user_mode;
int bound_x1, bound_y1, bound_x2, bound_y2;
int boundary_set;
public:
ColorTable* vga_color_table;
unsigned char gray_remap_table[VGA_PALETTE_SIZE];
static VgaBuf* active_buf;
static char use_back_buf;
static char opaque_flag;
MouseInputMode mouse_mode;
public:
Vga();
~Vga();
int init();
void deinit();
char is_inited() { return window != NULL; }
int load_pal(const char* fileName);
void activate_pal(VgaBuf*);
int set_custom_palette(char*);
void free_custom_palette();
void adjust_brightness(int changeValue);
void use_front() { use_back_buf=0; active_buf = &vga_front; }
void use_back() { use_back_buf=1; active_buf = &vga_back; }
void handle_messages();
void flag_redraw();
int is_full_screen();
int is_input_grabbed();
void update_boundary();
void update_mouse_pos();
void set_full_screen_mode(int mode);
void set_mouse_mode(MouseInputMode mode);
void set_window_grab(WinGrab mode);
void flip();
void save_status_report();
private:
void get_window_scale(float *xscale, float *yscale);
};
extern Vga vga;
//--------------------------------------------//
#endif
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