GrafX2: sdlscreen.c File Reference

#include <string.h>
#include <stdlib.h>
#include <SDL.h>
#include <SDL_endian.h>
#include <SDL_image.h>
#include <SDL_syswm.h>
#include "global.h"
#include "sdlscreen.h"
#include "errors.h"
#include "misc.h"
#include "gfx2log.h"
#include "io.h"

Include dependency graph for sdlscreen.c:

Macros
#define	UPDATE_METHOD_MULTI_RECTANGLE 1

#define	UPDATE_METHOD_CUMULATED 2

#define	UPDATE_METHOD_FULL_PAGE 3

#define	UPDATE_METHOD UPDATE_METHOD_CUMULATED

Functions
byte	Get_Screen_pixel (int x, int y)

void	Set_Screen_pixel (int x, int y, byte value)

byte *	Get_Screen_pixel_ptr (int x, int y)

void	Screen_FillRect (int x, int y, int w, int h, byte color)

void	GFX2_Set_mode (int width, int height, int fullscreen)
	Sets the new screen/window dimensions. More...

void	Flush_update (void)

void	Update_rect (short x, short y, unsigned short width, unsigned short height)

void	Update_status_line (short char_pos, short width)

byte *	Surface_to_bytefield (SDL_Surface source, byte dest)
	Converts a SDL_Surface (indexed colors or RGB) into an array of bytes (indexed colors). More...

SDL_Color	Color_to_SDL_color (byte index)
	Gets the RGB 24-bit color currently associated with a palette index. More...

byte	Get_SDL_pixel_8 (const SDL_Surface *bmp, int x, int y)
	Reads a pixel in a 8-bit SDL surface. More...

void	Set_SDL_pixel_8 (SDL_Surface *bmp, int x, int y, byte color)
	Writes a pixel in a 8-bit SDL surface. More...

dword	Get_SDL_pixel_hicolor (const SDL_Surface *bmp, int x, int y)
	Reads a pixel in a multi-byte SDL surface. More...

void	Get_SDL_Palette (const SDL_Palette *sdl_palette, T_Palette palette)
	Convert a SDL Palette to a grafx2 palette. More...

int	GFX2_SetPalette (const T_Components *colors, int firstcolor, int ncolors)

void	Clear_border (byte color)
	Clears the parts of screen that are outside of the editing area. More...

void	Allow_drag_and_drop (int flag)
	Activates or desactivates file drag-dropping in program window. More...

void	Define_icon (void)
	Set application icon(s) More...

void	Set_mouse_position (void)
	set (system) mouse cursor position More...

int	GFX2_MessageBox (const char text, const char caption, unsigned int type)
	Display a modal message. More...

Variables
static SDL_Surface *	Screen_SDL = NULL

volatile int	Allow_colorcycling =1

static SDL_Rect	render_dstrect

short	Min_X =0

short	Min_Y =0

short	Max_X =10000

short	Max_Y =10000

short	Status_line_dirty_begin =0

short	Status_line_dirty_end =0

Macro Definition Documentation

◆ UPDATE_METHOD_MULTI_RECTANGLE

#define UPDATE_METHOD_MULTI_RECTANGLE 1

◆ UPDATE_METHOD_CUMULATED

#define UPDATE_METHOD_CUMULATED 2

◆ UPDATE_METHOD_FULL_PAGE

#define UPDATE_METHOD_FULL_PAGE 3

◆ UPDATE_METHOD

#define UPDATE_METHOD UPDATE_METHOD_CUMULATED

Function Documentation

◆ Get_Screen_pixel()

byte Get_Screen_pixel	(	int	x,
		int	y
	)

◆ Set_Screen_pixel()

void Set_Screen_pixel	(	int	x,
		int	y,
		byte	value
	)

◆ Get_Screen_pixel_ptr()

byte * Get_Screen_pixel_ptr	(	int	x,
		int	y
	)

◆ Screen_FillRect()

void Screen_FillRect	(	int	x,
		int	y,
		int	w,
		int	h,
		byte	color
	)

◆ GFX2_Set_mode()

void GFX2_Set_mode	(	int *	width,
		int *	height,
		int	fullscreen
	)

Sets the new screen/window dimensions.

◆ Flush_update()

void Flush_update ( void )

◆ Update_rect()

void Update_rect	(	short	x,
		short	y,
		unsigned short	width,
		unsigned short	height
	)

Referenced by GFX2_SetPalette().

◆ Update_status_line()

void Update_status_line	(	short	char_pos,
		short	width
	)

◆ Surface_to_bytefield()

byte * Surface_to_bytefield	(	SDL_Surface *	source,
		byte *	dest
	)

Converts a SDL_Surface (indexed colors or RGB) into an array of bytes (indexed colors).

If dest is NULL, it's allocated by malloc(). Otherwise, be sure to pass a buffer of the right dimensions.

References NULL.

Referenced by Render_text_TTF().

◆ Color_to_SDL_color()

SDL_Color Color_to_SDL_color ( byte index )

Gets the RGB 24-bit color currently associated with a palette index.

References Main, and T_Document::palette.

◆ Get_SDL_pixel_8()

byte Get_SDL_pixel_8	(	const SDL_Surface *	bmp,
		int	x,
		int	y
	)

Reads a pixel in a 8-bit SDL surface.

◆ Set_SDL_pixel_8()

void Set_SDL_pixel_8	(	SDL_Surface *	bmp,
		int	x,
		int	y,
		byte	color
	)

Writes a pixel in a 8-bit SDL surface.

◆ Get_SDL_pixel_hicolor()

dword Get_SDL_pixel_hicolor	(	const SDL_Surface *	bmp,
		int	x,
		int	y
	)

Reads a pixel in a multi-byte SDL surface.

Referenced by Define_icon().

◆ Get_SDL_Palette()

void Get_SDL_Palette	(	const SDL_Palette *	sdl_palette,
		T_Palette	palette
	)

Convert a SDL Palette to a grafx2 palette.

Referenced by Render_text_TTF().

◆ GFX2_SetPalette()

int GFX2_SetPalette	(	const T_Components *	colors,
		int	firstcolor,
		int	ncolors
	)

◆ Clear_border()

void Clear_border ( byte color )

Clears the parts of screen that are outside of the editing area.

There is such area only if the screen mode is not a multiple of the pixel size, eg: 3x3 pixels in 1024x768 leaves 1 column on the right, 0 rows on bottom.

◆ Allow_drag_and_drop()

void Allow_drag_and_drop ( int flag )

Activates or desactivates file drag-dropping in program window.

◆ Define_icon()

void Define_icon ( void )

Set application icon(s)

◆ Set_mouse_position()

void Set_mouse_position ( void )

set (system) mouse cursor position

◆ GFX2_MessageBox()

int GFX2_MessageBox	(	const char *	text,
		const char *	caption,
		unsigned int	type
	)

Display a modal message.

Parameters

text	body of the modal message
caption	title of the message
type	one of GFX2_MB_INFO, GFX2_MB_ERROR, GFX2_MB_WARNING

Returns: 0 for error

Variable Documentation

◆ Screen_SDL

SDL_Surface* Screen_SDL = NULL

static

Referenced by Clear_border(), Flush_update(), Get_Screen_pixel(), Get_Screen_pixel_ptr(), GFX2_Set_mode(), GFX2_SetPalette(), Screen_FillRect(), Set_Screen_pixel(), Update_rect(), and Update_status_line().

◆ Allow_colorcycling

volatile int Allow_colorcycling =1

◆ render_dstrect

SDL_Rect render_dstrect

static

Referenced by GFX2_Set_mode().

◆ Min_X

short Min_X =0

Referenced by Flush_update(), and Update_rect().

◆ Min_Y

short Min_Y =0

Referenced by Flush_update(), Remap_window_backgrounds(), and Update_rect().

◆ Max_X

short Max_X =10000