mirror of
https://github.com/dborth/vbagx.git
synced 2024-11-22 10:39:18 +01:00
169 lines
6.5 KiB
C++
169 lines
6.5 KiB
C++
/*
|
|
* FreeTypeGX is a wrapper class for libFreeType which renders a compiled
|
|
* FreeType parsable font into a GX texture for Wii homebrew development.
|
|
* Copyright (C) 2008 Armin Tamzarian
|
|
* Modified by Tantric, 2009-2010
|
|
*
|
|
* This file is part of FreeTypeGX.
|
|
*
|
|
* FreeTypeGX is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published
|
|
* by the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* FreeTypeGX 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with FreeTypeGX. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef FREETYPEGX_H_
|
|
#define FREETYPEGX_H_
|
|
|
|
#include <gccore.h>
|
|
#include <ft2build.h>
|
|
#include FT_FREETYPE_H
|
|
#include FT_BITMAP_H
|
|
|
|
#include <malloc.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
#include <map>
|
|
|
|
#define MAX_FONT_SIZE 100
|
|
|
|
/*! \struct ftgxCharData_
|
|
*
|
|
* Font face character glyph relevant data structure.
|
|
*/
|
|
typedef struct ftgxCharData_ {
|
|
int16_t renderOffsetX; /**< Texture X axis bearing offset. */
|
|
uint16_t glyphAdvanceX; /**< Character glyph X coordinate advance in pixels. */
|
|
uint16_t glyphIndex; /**< Charachter glyph index in the font face. */
|
|
|
|
uint16_t textureWidth; /**< Texture width in pixels/bytes. */
|
|
uint16_t textureHeight; /**< Texture glyph height in pixels/bytes. */
|
|
|
|
int16_t renderOffsetY; /**< Texture Y axis bearing offset. */
|
|
int16_t renderOffsetMax; /**< Texture Y axis bearing maximum value. */
|
|
int16_t renderOffsetMin; /**< Texture Y axis bearing minimum value. */
|
|
|
|
uint8_t* glyphDataTexture; /**< Glyph texture bitmap data buffer. */
|
|
} ftgxCharData;
|
|
|
|
/*! \struct ftgxDataOffset_
|
|
*
|
|
* Offset structure which hold both a maximum and minimum value.
|
|
*/
|
|
typedef struct ftgxDataOffset_ {
|
|
int16_t ascender; /**< Maximum data offset. */
|
|
int16_t descender; /**< Minimum data offset. */
|
|
int16_t max; /**< Maximum data offset. */
|
|
int16_t min; /**< Minimum data offset. */
|
|
} ftgxDataOffset;
|
|
|
|
typedef struct ftgxCharData_ ftgxCharData;
|
|
typedef struct ftgxDataOffset_ ftgxDataOffset;
|
|
|
|
#define _TEXT(t) L ## t /**< Unicode helper macro. */
|
|
|
|
#define FTGX_NULL 0x0000
|
|
#define FTGX_JUSTIFY_LEFT 0x0001
|
|
#define FTGX_JUSTIFY_CENTER 0x0002
|
|
#define FTGX_JUSTIFY_RIGHT 0x0004
|
|
#define FTGX_JUSTIFY_MASK 0x000f
|
|
|
|
#define FTGX_ALIGN_TOP 0x0010
|
|
#define FTGX_ALIGN_MIDDLE 0x0020
|
|
#define FTGX_ALIGN_BOTTOM 0x0040
|
|
#define FTGX_ALIGN_BASELINE 0x0080
|
|
#define FTGX_ALIGN_GLYPH_TOP 0x0100
|
|
#define FTGX_ALIGN_GLYPH_MIDDLE 0x0200
|
|
#define FTGX_ALIGN_GLYPH_BOTTOM 0x0400
|
|
#define FTGX_ALIGN_MASK 0x0ff0
|
|
|
|
#define FTGX_STYLE_UNDERLINE 0x1000
|
|
#define FTGX_STYLE_STRIKE 0x2000
|
|
#define FTGX_STYLE_MASK 0xf000
|
|
|
|
#define FTGX_COMPATIBILITY_DEFAULT_TEVOP_GX_MODULATE 0X0001
|
|
#define FTGX_COMPATIBILITY_DEFAULT_TEVOP_GX_DECAL 0X0002
|
|
#define FTGX_COMPATIBILITY_DEFAULT_TEVOP_GX_BLEND 0X0004
|
|
#define FTGX_COMPATIBILITY_DEFAULT_TEVOP_GX_REPLACE 0X0008
|
|
#define FTGX_COMPATIBILITY_DEFAULT_TEVOP_GX_PASSCLR 0X0010
|
|
|
|
#define FTGX_COMPATIBILITY_DEFAULT_VTXDESC_GX_NONE 0X0100
|
|
#define FTGX_COMPATIBILITY_DEFAULT_VTXDESC_GX_DIRECT 0X0200
|
|
#define FTGX_COMPATIBILITY_DEFAULT_VTXDESC_GX_INDEX8 0X0400
|
|
#define FTGX_COMPATIBILITY_DEFAULT_VTXDESC_GX_INDEX16 0X0800
|
|
|
|
#define FTGX_COMPATIBILITY_NONE 0x0000
|
|
#define FTGX_COMPATIBILITY_GRRLIB FTGX_COMPATIBILITY_DEFAULT_TEVOP_GX_PASSCLR | FTGX_COMPATIBILITY_DEFAULT_VTXDESC_GX_NONE
|
|
#define FTGX_COMPATIBILITY_LIBWIISPRITE FTGX_COMPATIBILITY_DEFAULT_TEVOP_GX_MODULATE | FTGX_COMPATIBILITY_DEFAULT_VTXDESC_GX_DIRECT
|
|
|
|
const GXColor ftgxWhite = (GXColor){0xff, 0xff, 0xff, 0xff}; /**< Constant color value used only to sanitize Doxygen documentation. */
|
|
|
|
void InitFreeType(uint8_t* fontBuffer, FT_Long bufferSize);
|
|
void DeinitFreeType();
|
|
void ChangeFontSize(FT_UInt pixelSize);
|
|
wchar_t* charToWideChar(const char* p);
|
|
void ClearFontData();
|
|
|
|
/*! \class FreeTypeGX
|
|
* \brief Wrapper class for the libFreeType library with GX rendering.
|
|
* \author Armin Tamzarian
|
|
* \version 0.2.4
|
|
*
|
|
* FreeTypeGX acts as a wrapper class for the libFreeType library. It supports precaching of transformed glyph data into
|
|
* a specified texture format. Rendering of the data to the EFB is accomplished through the application of high performance
|
|
* GX texture functions resulting in high throughput of string rendering.
|
|
*/
|
|
class FreeTypeGX {
|
|
|
|
private:
|
|
FT_UInt ftPointSize; /**< Requested size of the rendered font. */
|
|
bool ftKerningEnabled; /**< Flag indicating the availability of font kerning data. */
|
|
uint8_t vertexIndex; /**< Vertex format descriptor index. */
|
|
uint32_t compatibilityMode; /**< Compatibility mode for default tev operations and vertex descriptors. */
|
|
std::map<wchar_t, ftgxCharData> fontData; /**< Map which holds the glyph data structures for the corresponding characters. */
|
|
|
|
static uint16_t adjustTextureWidth(uint16_t textureWidth);
|
|
static uint16_t adjustTextureHeight(uint16_t textureHeight);
|
|
|
|
static int16_t getStyleOffsetWidth(uint16_t width, uint16_t format);
|
|
static int16_t getStyleOffsetHeight(ftgxDataOffset *offset, uint16_t format);
|
|
|
|
void unloadFont();
|
|
ftgxCharData *cacheGlyphData(wchar_t charCode);
|
|
uint16_t cacheGlyphDataComplete();
|
|
void loadGlyphData(FT_Bitmap *bmp, ftgxCharData *charData);
|
|
|
|
void setDefaultMode();
|
|
|
|
void drawTextFeature(int16_t x, int16_t y, uint16_t width, ftgxDataOffset *offsetData, uint16_t format, GXColor color);
|
|
void copyTextureToFramebuffer(GXTexObj *texObj, f32 texWidth, f32 texHeight, int16_t screenX, int16_t screenY, GXColor color);
|
|
void copyFeatureToFramebuffer(f32 featureWidth, f32 featureHeight, int16_t screenX, int16_t screenY, GXColor color);
|
|
|
|
public:
|
|
FreeTypeGX(FT_UInt pixelSize, uint8_t vertexIndex = GX_VTXFMT1);
|
|
~FreeTypeGX();
|
|
|
|
void setVertexFormat(uint8_t vertexIndex);
|
|
void setCompatibilityMode(uint32_t compatibilityMode);
|
|
|
|
uint16_t drawText(int16_t x, int16_t y, wchar_t *text, GXColor color = ftgxWhite, uint16_t textStyling = FTGX_NULL);
|
|
uint16_t drawText(int16_t x, int16_t y, wchar_t const *text, GXColor color = ftgxWhite, uint16_t textStyling = FTGX_NULL);
|
|
|
|
uint16_t getWidth(wchar_t *text);
|
|
uint16_t getWidth(wchar_t const *text);
|
|
uint16_t getHeight(wchar_t *text);
|
|
uint16_t getHeight(wchar_t const *text);
|
|
void getOffset(wchar_t *text, ftgxDataOffset* offset);
|
|
void getOffset(wchar_t const *text, ftgxDataOffset* offset);
|
|
};
|
|
|
|
#endif /* FREETYPEGX_H_ */
|