Atlas.c File Reference

#include "Atlas.h"
#include "DynArray.h"
#include "ImageFileRegstry.h"
#include <string.h>
#include <stdlib.h>
#include "AssertLib.h"
#include <ft2build.h>
#include "stb/stb_image_write.h"
#include "DrawContext.h"
#include "SharedPtr.h"
#include "FloatingPointLib.h"
#include <libxml/parser.h>
#include <libxml/tree.h>
#include "BinarySerializer.h"
#include "BitField2D.h"
#include "StringKeyHashMap.h"
#include "Log.h"

Include dependency graph for Atlas.c:

Data Structures
struct	AtlasSpriteFontData
struct	AtlasFont
struct	Atlas
struct	AtlasRect
struct	FreeSpaceRun

Macros
#define	STB_IMAGE_WRITE_IMPLEMENTATION
#define	ATLAS_SPRITE_BORDER_PXLS   1
#define	MERGE_FREE_SPACES
#define	ATLAS_HANDLE_BOUNDS_CHECK_NO_RETURN(atlas)
#define	ATLAS_HANDLE_BOUNDS_CHECK(atlas, rVal)
#define	FONT_HANDLE_BOUNDS_CHECK(hAtlas, hFont, rVal)

Functions
Atlas *	AqcuireAtlas ()
void	At_SetCurrent (hAtlas atlas, DrawContext *pDC)
void	At_Init ()
void	At_BeginAtlas ()
hSprite	At_AddSprite (const char *imgPath, int topLeftXPx, int topLeftYPx, int widthPx, int heightPx, const char *name)
float	At_PixelsToPts (float val)
HFont	At_AddFont (const struct FontAtlasAdditionSpec *pFontSpec)
int	SortFunc (const void *a, const void *b)
	VECTOR (struct AtlasRect)
bool	FitsInRect (const AtlasSprite *sprite, const struct AtlasRect *rect)
int	FindFittingFreeSpace (const AtlasSprite *sprite, VECTOR(struct AtlasRect) freeSpace)
struct FreeSpaceRun *	FindRunInPrevRow (VECTOR(struct FreeSpaceRun) prevRow, struct FreeSpaceRun *pRun)
struct AtlasRect *	MergeFreeSpace (struct AtlasRect *pFreeSpace, struct Bitfield2D *pBF, int w, int h)
int	FreeSpaceSortFunc (const void *a, const void *b)
void	BlitAtlasSprite (u8 *dst, size_t dstWidthPx, AtlasSprite *pSprite)
void	CopyNestedPositions (Atlas *pAtlasDest, AtlasSprite *spritesCopySrc, int spritesCopySrcSize)
size_t	CountTotalSpritesInFonts (Atlas *pAtlas)
hAtlas	At_EndAtlas (struct DrawContext *pDC)
hAtlas	At_EndAtlasEx (struct DrawContext *pDC, struct EndAtlasOptions *pOptions)
void	At_DestroyAtlas (hAtlas atlas, struct DrawContext *pDC)
hSprite	At_FindSprite (const char *name, hAtlas atlas)
AtlasSprite *	At_GetSprite (hSprite sprite, hAtlas atlas)
hTexture	At_GetAtlasTexture (hAtlas atlas)
hAtlas	At_LoadAtlas (xmlNode *child0, DrawContext *pDC)
hAtlas	At_LoadAtlasEx (xmlNode *child0, DrawContext *pDC, struct EndAtlasOptions *pOptions)
hSprite	At_TilemapIndexToSprite (hAtlas atlas, TileIndex tileIndex)
void	At_SerializeAtlas (struct BinarySerializer *pSerializer, hAtlas *atlas, struct DrawContext *pDC)
HFont	Fo_FindFont (hAtlas hAtlas, const char *fontName, float sizePts)
float	Fo_CharWidth (hAtlas hAtlas, HFont hFont, char c)
float	Fo_CharHeight (hAtlas hAtlas, HFont hFont, char c)
float	Fo_StringWidth (hAtlas hAtlas, HFont hFont, const char *stringVal)
float	Fo_StringHeight (hAtlas hAtlas, HFont hFont, const char *stringVal)
AtlasSprite *	Fo_GetCharSprite (hAtlas hAtlas, HFont hFont, char c)
float	Fo_GetMaxYBearing (hAtlas hAtlas, HFont hFont, const char *str)
bool	Fo_TryGetCharBearing (hAtlas hAtlas, HFont hFont, char c, vec2 outBearing)
bool	Fo_TryGetCharAdvance (hAtlas hAtlas, HFont hFont, char c, float *outAdvance)
void	At_BeginTileset (int beginI)
void	At_EndTileset (int endI)
struct AtlasAnimation *	At_FindAnim (hAtlas atlas, const char *name)

Variables
FT_Library	gFTLib

Macro Definition Documentation

ATLAS_HANDLE_BOUNDS_CHECK

#define ATLAS_HANDLE_BOUNDS_CHECK	(		atlas,
			rVal
	)

Value:

{\
bool bAtlasHandleBoundsValid = atlas < VectorSize(gAtlases) && atlas >= 0;\
if(!bAtlasHandleBoundsValid){\
    Log_Error("function '%s' invalid bounds handle %i", __FUNCTION__, atlas);\
    return rVal;\
}\
}

ATLAS_HANDLE_BOUNDS_CHECK_NO_RETURN

#define ATLAS_HANDLE_BOUNDS_CHECK_NO_RETURN

(

atlas

)

Value:

{\
bool bAtlasHandleBoundsValid = atlas < VectorSize(gAtlases) && atlas >= 0;\
if(!bAtlasHandleBoundsValid){\
    Log_Error("function '%s' invalid bounds handle %i", __FUNCTION__, atlas);\
    return;\
}\
}\

ATLAS_SPRITE_BORDER_PXLS

#define ATLAS_SPRITE_BORDER_PXLS   1

FONT_HANDLE_BOUNDS_CHECK

#define FONT_HANDLE_BOUNDS_CHECK	(		hAtlas,
			hFont,
			rVal
	)

Value:

{\
Atlas* pAtlas = &gAtlases[hAtlas];\
bool bAtlasHandleBoundsValid = hFont < VectorSize(pAtlas->fonts) && hFont >= 0;\
if(!bAtlasHandleBoundsValid){\
    Log_Error("function '%s' invalid bounds font handle %i", __FUNCTION__, hFont);\
    return rVal;\
}\
}

MERGE_FREE_SPACES

#define MERGE_FREE_SPACES

STB_IMAGE_WRITE_IMPLEMENTATION

#define STB_IMAGE_WRITE_IMPLEMENTATION

Function Documentation

AqcuireAtlas()

Atlas * AqcuireAtlas

(

)

At_AddFont()

HFont At_AddFont

(

const struct FontAtlasAdditionSpec *

pFontSpec

)

At_AddSprite()

hSprite At_AddSprite	(	const char *	imgPath,
		int	topLeftXPx,
		int	topLeftYPx,
		int	widthPx,
		int	heightPx,
		const char *	name
	)

At_BeginAtlas()

void At_BeginAtlas

(

)

At_BeginTileset()

void At_BeginTileset

(

int

beginI

)

At_DestroyAtlas()

void At_DestroyAtlas	(	hAtlas	atlas,
		struct DrawContext *	pDC
	)

At_EndAtlas()

hAtlas At_EndAtlas

(

struct DrawContext *

pDC

)

At_EndAtlasEx()

hAtlas At_EndAtlasEx	(	struct DrawContext *	pDC,
		struct EndAtlasOptions *	pOptions
	)

At_EndTileset()

void At_EndTileset

(

int

endI

)

At_FindAnim()

struct AtlasAnimation * At_FindAnim	(	hAtlas	atlas,
		const char *	name
	)

At_FindSprite()

hSprite At_FindSprite	(	const char *	name,
		hAtlas	atlas
	)

At_GetAtlasTexture()

hTexture At_GetAtlasTexture

(

hAtlas

atlas

)

At_GetSprite()

AtlasSprite * At_GetSprite	(	hSprite	sprite,
		hAtlas	atlas
	)

At_Init()

void At_Init

(

)

At_LoadAtlas()

hAtlas At_LoadAtlas	(	xmlNode *	child0,
		DrawContext *	pDC
	)

At_LoadAtlasEx()

hAtlas At_LoadAtlasEx	(	xmlNode *	child0,
		DrawContext *	pDC,
		struct EndAtlasOptions *	pOptions
	)

At_PixelsToPts()

float At_PixelsToPts

(

float

val

)

At_SerializeAtlas()

void At_SerializeAtlas	(	struct BinarySerializer *	pSerializer,
		hAtlas *	atlas,
		struct DrawContext *	pDC
	)

Parameters

pSerializer	binary serialzier to load or save
atlas	If loading, point to an unititialized handle to output the new handle If saving point to the handle of the atlas you want to save
pDC

At_SetCurrent()

void At_SetCurrent	(	hAtlas	atlas,
		DrawContext *	pDC
	)

At_TilemapIndexToSprite()

hSprite At_TilemapIndexToSprite	(	hAtlas	atlas,
		TileIndex	tileIndex
	)

BlitAtlasSprite()

void BlitAtlasSprite	(	u8 *	dst,
		size_t	dstWidthPx,
		AtlasSprite *	pSprite
	)

CopyNestedPositions()

void CopyNestedPositions	(	Atlas *	pAtlasDest,
		AtlasSprite *	spritesCopySrc,
		int	spritesCopySrcSize
	)

CountTotalSpritesInFonts()

size_t CountTotalSpritesInFonts

(

Atlas *

pAtlas

)

FindFittingFreeSpace()

int FindFittingFreeSpace	(	const AtlasSprite *	sprite,
		VECTOR(struct AtlasRect)	freeSpace
	)

FindRunInPrevRow()

struct FreeSpaceRun * FindRunInPrevRow	(	VECTOR(struct FreeSpaceRun)	prevRow,
		struct FreeSpaceRun *	pRun
	)

FitsInRect()

bool FitsInRect	(	const AtlasSprite *	sprite,
		const struct AtlasRect *	rect
	)

Fo_CharHeight()

float Fo_CharHeight	(	hAtlas	hAtlas,
		HFont	hFont,
		char	c
	)

Fo_CharWidth()

float Fo_CharWidth	(	hAtlas	hAtlas,
		HFont	hFont,
		char	c
	)

Fo_FindFont()

HFont Fo_FindFont	(	hAtlas	hAtlas,
		const char *	fontName,
		float	sizePts
	)

Fo_GetCharSprite()

AtlasSprite * Fo_GetCharSprite	(	hAtlas	hAtlas,
		HFont	hFont,
		char	c
	)

Fo_GetMaxYBearing()

float Fo_GetMaxYBearing	(	hAtlas	hAtlas,
		HFont	hFont,
		const char *	str
	)

Fo_StringHeight()

float Fo_StringHeight	(	hAtlas	hAtlas,
		HFont	hFont,
		const char *	stringVal
	)

Fo_StringWidth()

float Fo_StringWidth	(	hAtlas	hAtlas,
		HFont	hFont,
		const char *	stringVal
	)

Fo_TryGetCharAdvance()

bool Fo_TryGetCharAdvance	(	hAtlas	hAtlas,
		HFont	hFont,
		char	c,
		float *	outAdvance
	)

Fo_TryGetCharBearing()

bool Fo_TryGetCharBearing	(	hAtlas	hAtlas,
		HFont	hFont,
		char	c,
		vec2	outBearing
	)

FreeSpaceSortFunc()

int FreeSpaceSortFunc	(	const void *	a,
		const void *	b
	)

MergeFreeSpace()

struct AtlasRect * MergeFreeSpace	(	struct AtlasRect *	pFreeSpace,
		struct Bitfield2D *	pBF,
		int	w,
		int	h
	)

SortFunc()

int SortFunc	(	const void *	a,
		const void *	b
	)

VECTOR()

static VECTOR

(

struct AtlasRect

)

Variable Documentation

gFTLib

FT_Library gFTLib