#include <SDL3_image/SDL_image.h>
#include <SDL3_ttf/SDL_ttf.h>
#include "fcintl.h"
#include "log.h"
#include "tilespec.h"
#include "colors.h"
#include "gui_tilespec.h"
#include "mapview.h"
#include "themebackgrounds.h"
#include "themespec.h"
#include "graphics.h"

Functions
struct gui_layer *	gui_layer_new (int x, int y, SDL_Surface *surface)

void	gui_layer_destroy (struct gui_layer **gui_layer)

struct gui_layer *	get_gui_layer (SDL_Surface *surface)

struct gui_layer *	add_gui_layer (int width, int height)

void	remove_gui_layer (struct gui_layer *gui_layer)

void	screen_rect_to_layer_rect (struct gui_layer gui_layer, SDL_Rect dest_rect)

void	layer_rect_to_screen_rect (struct gui_layer gui_layer, SDL_Rect dest_rect)

int	alphablit (SDL_Surface src, SDL_Rect srcrect, SDL_Surface dst, SDL_Rect dstrect, unsigned char alpha_mod)

int	screen_blit (SDL_Surface src, SDL_Rect srcrect, SDL_Rect *dstrect, unsigned char alpha_mod)

SDL_Surface *	crop_rect_from_surface (SDL_Surface psource, SDL_Rect prect)

SDL_Surface *	mask_surface (SDL_Surface src, SDL_Surface mask, int mask_offset_x, int mask_offset_y)

SDL_Surface *	load_surf (const char *fname)

SDL_Surface *	create_surf_with_format (SDL_PixelFormat pf, int width, int height)

SDL_Surface *	create_surf (int width, int height)

SDL_Surface *	convert_surf (SDL_Surface *surf_in)

SDL_Surface *	create_filled_surface (Uint16 w, Uint16 h, SDL_Color *pcolor)

int	clear_surface (SDL_Surface surf, SDL_Rect dstrect)

int	blit_entire_src (SDL_Surface psrc, SDL_Surface pdest, Sint16 dest_x, Sint16 dest_y)

Uint32	get_pixel (SDL_Surface *surf, Sint16 x, Sint16 y)

Uint32	get_first_pixel (SDL_Surface *surf)

void	init_sdl (int flags)

static void	free_surfaces (void)

bool	create_surfaces (int width, int height)

void	quit_sdl (void)

bool	set_video_mode (unsigned width, unsigned height, unsigned flags_in)

void	update_main_screen (void)

int	main_window_width (void)

int	main_window_height (void)

int	fill_rect_alpha (SDL_Surface surf, SDL_Rect prect, SDL_Color *pcolor)

bool	correct_rect_region (SDL_Rect *prect)

bool	is_in_rect_area (int x, int y, const SDL_Rect *rect)

void	get_smaller_surface_rect (SDL_Surface surf, SDL_Rect rect)

SDL_Surface *	crop_visible_part_from_surface (SDL_Surface *psrc)

SDL_Surface *	resize_surface (const SDL_Surface *psrc, Uint16 new_width, Uint16 new_height, int smooth)

SDL_Surface *	resize_surface_box (const SDL_Surface *psrc, Uint16 new_width, Uint16 new_height, int smooth, bool scale_up, bool absolute_dimensions)

SDL_Surface *	copy_surface (SDL_Surface *src)

bool	is_view_supported (enum ts_type type)

void	tileset_type_set (enum ts_type type)

void	create_frame (SDL_Surface dest, Sint16 left, Sint16 top, Sint16 width, Sint16 height, SDL_Color pcolor)

void	create_line (SDL_Surface dest, Sint16 x0, Sint16 y0, Sint16 x1, Sint16 y1, SDL_Color pcolor)

Variables
struct sdl3_data	main_data

static SDL_Surface *	main_surface = NULL

static bool	render_dirty = TRUE

Function Documentation

◆ add_gui_layer()

struct gui_layer * add_gui_layer	(	int	width,
		int	height
	)

Buffer allocation function. This function is call by "create_window(...)" function and allocate buffer layer for this function.

Pointer for this buffer is put in buffer array on last position that flush functions will draw this layer last.

Definition at line 105 of file graphics.c.

◆ alphablit()

int alphablit	(	SDL_Surface *	src,
		SDL_Rect *	srcrect,
		SDL_Surface *	dst,
		SDL_Rect *	dstrect,
		unsigned char	alpha_mod
	)

Execute alphablit.

Definition at line 192 of file graphics.c.

◆ blit_entire_src()

int blit_entire_src	(	SDL_Surface *	psrc,
		SDL_Surface *	pdest,
		Sint16	dest_x,
		Sint16	dest_y
	)

Blit entire src [SOURCE] surface to destination [DEST] surface on position : [dest_x],[dest_y] using it's actual alpha and color key settings.

Definition at line 417 of file graphics.c.

◆ clear_surface()

int clear_surface	(	SDL_Surface *	surf,
		SDL_Rect *	dstrect
	)

Fill surface with (0, 0, 0, 0), so the next blitting operation can set the per pixel alpha

Definition at line 396 of file graphics.c.

◆ convert_surf()

SDL_Surface * convert_surf ( SDL_Surface * surf_in )

Convert surface to the main window format.

Definition at line 354 of file graphics.c.

◆ copy_surface()

SDL_Surface * copy_surface ( SDL_Surface * src )

Return copy of the surface

Definition at line 1132 of file graphics.c.

◆ correct_rect_region()

bool correct_rect_region ( SDL_Rect * prect )

Make rectangle region sane. Return TRUE if result is sane.

Definition at line 709 of file graphics.c.

◆ create_filled_surface()

SDL_Surface * create_filled_surface	(	Uint16	w,
		Uint16	h,
		SDL_Color *	pcolor
	)

Create an surface with screen format and fill with color. If pcolor == NULL surface is filled with transparent white A = 128

Definition at line 363 of file graphics.c.

◆ create_frame()

void create_frame	(	SDL_Surface *	dest,
		Sint16	left,
		Sint16	top,
		Sint16	width,
		Sint16	height,
		SDL_Color *	pcolor
	)

Create colored frame

Definition at line 1169 of file graphics.c.

◆ create_line()

void create_line	(	SDL_Surface *	dest,
		Sint16	x0,
		Sint16	y0,
		Sint16	x1,
		Sint16	y1,
		SDL_Color *	pcolor
	)

Create single colored line

Definition at line 1200 of file graphics.c.

◆ create_surf()

SDL_Surface * create_surf	(	int	width,
		int	height
	)

Create surface with the same format as main window

Definition at line 346 of file graphics.c.

◆ create_surf_with_format()

SDL_Surface * create_surf_with_format	(	SDL_PixelFormat	pf,
		int	width,
		int	height
	)

Create an surface with format

Definition at line 328 of file graphics.c.

◆ create_surfaces()

bool create_surfaces	(	int	width,
		int	height
	)

Create new main window surfaces.

Definition at line 556 of file graphics.c.

◆ crop_rect_from_surface()

SDL_Surface * crop_rect_from_surface	(	SDL_Surface *	psource,
		SDL_Rect *	prect
	)

Create new surface (prect->w x prect->h size) and copy prect area of psource. if prect == NULL then create copy of entire psource.

Definition at line 231 of file graphics.c.

◆ crop_visible_part_from_surface()

SDL_Surface * crop_visible_part_from_surface ( SDL_Surface * psrc )

Create new surface that is just visible part of source surface.

Definition at line 1048 of file graphics.c.

◆ fill_rect_alpha()

int fill_rect_alpha	(	SDL_Surface *	surf,
		SDL_Rect *	prect,
		SDL_Color *	pcolor
	)

Fill rectangle with color with alpha channel.

Definition at line 675 of file graphics.c.

◆ free_surfaces()

static void free_surfaces ( void )

static

Free existing surfaces

Definition at line 543 of file graphics.c.

◆ get_first_pixel()

Uint32 get_first_pixel ( SDL_Surface * surf )

Get first pixel Return the pixel value at (0, 0) NOTE: The surface must be locked before calling this!

Definition at line 468 of file graphics.c.

◆ get_gui_layer()

struct gui_layer * get_gui_layer ( SDL_Surface * surface )

Get surface gui_layer.

Definition at line 83 of file graphics.c.

◆ get_pixel()

Uint32 get_pixel	(	SDL_Surface *	surf,
		Sint16	x,
		Sint16	y
	)

Get pixel Return the pixel value at (x, y) NOTE: The surface must be locked before calling this!

Definition at line 430 of file graphics.c.

◆ get_smaller_surface_rect()

void get_smaller_surface_rect	(	SDL_Surface *	surf,
		SDL_Rect *	rect
	)

Get visible rectangle from surface.

Definition at line 757 of file graphics.c.

◆ gui_layer_destroy()

void gui_layer_destroy ( struct gui_layer ** gui_layer )

Free resources associated with gui_layer.

Definition at line 74 of file graphics.c.

◆ gui_layer_new()

struct gui_layer * gui_layer_new	(	int	x,
		int	y,
		SDL_Surface *	surface
	)

Allocate new gui_layer.

Definition at line 59 of file graphics.c.

◆ init_sdl()

void init_sdl ( int flags )

Initialize sdl with Flags

Definition at line 506 of file graphics.c.

◆ is_in_rect_area()

bool is_in_rect_area	(	int	x,
		int	y,
		const SDL_Rect *	rect
	)

Return whether coordinates are in rectangle.

Definition at line 746 of file graphics.c.

◆ is_view_supported()

bool is_view_supported ( enum ts_type type )

Return whether the client supports given view type

Definition at line 1146 of file graphics.c.

◆ layer_rect_to_screen_rect()

void layer_rect_to_screen_rect	(	struct gui_layer *	gui_layer,
		SDL_Rect *	dest_rect
	)

Translate dest_rect from gui_layer's to global screen coordinates.

Definition at line 178 of file graphics.c.

◆ load_surf()

SDL_Surface * load_surf ( const char * fname )

Load a surface from file putting it in software mem.

Definition at line 308 of file graphics.c.

◆ main_window_height()

int main_window_height ( void )

Return height of the main window

Definition at line 667 of file graphics.c.

◆ main_window_width()

int main_window_width ( void )

Return width of the main window

Definition at line 659 of file graphics.c.

◆ mask_surface()

SDL_Surface * mask_surface	(	SDL_Surface *	src,
		SDL_Surface *	mask,
		int	mask_offset_x,
		int	mask_offset_y
	)

Reduce the alpha of the final surface proportional to the alpha of the mask. Thus if the mask has 50% alpha the final image will be reduced by 50% alpha.

mask_offset_x, mask_offset_y is the offset of the mask relative to the origin of the source image. The pixel at (mask_offset_x, mask_offset_y) in the mask image will be used to clip pixel (0, 0) in the source image which is pixel (-x, -y) in the new image.

Definition at line 256 of file graphics.c.

◆ quit_sdl()

void quit_sdl ( void )

Free screen buffers

Definition at line 600 of file graphics.c.

◆ remove_gui_layer()

void remove_gui_layer ( struct gui_layer * gui_layer )

Free buffer layer ( call by popdown_window_group_dialog(...) func ) Func. Free buffer layer and clear buffer array entry.

Definition at line 141 of file graphics.c.

◆ resize_surface()

SDL_Surface * resize_surface	(	const SDL_Surface *	psrc,
		Uint16	new_width,
		Uint16	new_height,
		int	smooth
	)

Scale surface.

Definition at line 1060 of file graphics.c.

◆ resize_surface_box()

SDL_Surface * resize_surface_box	(	const SDL_Surface *	psrc,
		Uint16	new_width,
		Uint16	new_height,
		int	smooth,
		bool	scale_up,
		bool	absolute_dimensions
	)

Resize a surface to fit into a box with the dimensions 'new_width' and a 'new_height'. If 'scale_up' is FALSE, a surface that already fits into the box will not be scaled up to the boundaries of the box. If 'absolute_dimensions' is TRUE, the function returns a surface with the dimensions of the box and the scaled/original surface centered in it.

Definition at line 1080 of file graphics.c.

◆ screen_blit()

int screen_blit	(	SDL_Surface *	src,
		SDL_Rect *	srcrect,
		SDL_Rect *	dstrect,
		unsigned char	alpha_mod
	)

Execute alphablit to the main surface

Definition at line 218 of file graphics.c.

◆ screen_rect_to_layer_rect()

void screen_rect_to_layer_rect	(	struct gui_layer *	gui_layer,
		SDL_Rect *	dest_rect
	)

Translate dest_rect from global screen to gui_layer's coordinates.

Definition at line 166 of file graphics.c.

◆ set_video_mode()

bool set_video_mode	(	unsigned	width,
		unsigned	height,
		unsigned	flags_in
	)

Switch to given video mode.

Definition at line 614 of file graphics.c.

◆ tileset_type_set()

void tileset_type_set ( enum ts_type type )

Loading tileset of the specified type

Definition at line 1162 of file graphics.c.

◆ update_main_screen()

void update_main_screen ( void )

Render from main surface with screen renderer.

Definition at line 643 of file graphics.c.

Variable Documentation

◆ main_data

struct sdl3_data main_data

Definition at line 50 of file graphics.c.

◆ main_surface

SDL_Surface* main_surface = NULL

static

Definition at line 52 of file graphics.c.

◆ render_dirty

bool render_dirty = TRUE

static

Definition at line 54 of file graphics.c.

Functions

Variables

Function Documentation

◆ add_gui_layer()

◆ alphablit()

◆ blit_entire_src()

◆ clear_surface()

◆ convert_surf()

◆ copy_surface()

◆ correct_rect_region()

◆ create_filled_surface()

◆ create_frame()

◆ create_line()

◆ create_surf()

◆ create_surf_with_format()

◆ create_surfaces()

◆ crop_rect_from_surface()

◆ crop_visible_part_from_surface()

◆ fill_rect_alpha()

◆ free_surfaces()

◆ get_first_pixel()

◆ get_gui_layer()

◆ get_pixel()

◆ get_smaller_surface_rect()

◆ gui_layer_destroy()

◆ gui_layer_new()

◆ init_sdl()

◆ is_in_rect_area()

◆ is_view_supported()

◆ layer_rect_to_screen_rect()

◆ load_surf()

◆ main_window_height()

◆ main_window_width()

◆ mask_surface()

◆ quit_sdl()

◆ remove_gui_layer()

◆ resize_surface()

◆ resize_surface_box()

◆ screen_blit()

◆ screen_rect_to_layer_rect()

◆ set_video_mode()

◆ tileset_type_set()

◆ update_main_screen()

Variable Documentation

◆ main_data

◆ main_surface

◆ render_dirty