paulo@0: /*
paulo@0: Variable width font drawing library for DS (and GBA)
paulo@0: 
paulo@0: Copyright 2007 Damian Yerrick <pinoandchester@pineight.com>
paulo@0: 
paulo@0: This work is provided 'as-is', without any express or implied
paulo@0: warranty.  In no event will the authors be held liable for any
paulo@0: damages arising from the use of this work.
paulo@0: 
paulo@0: Permission is granted to anyone to use this work for any purpose,
paulo@0: including commercial applications, and to alter it and redistribute
paulo@0: it freely, subject to the following restrictions:
paulo@0: 
paulo@0: 1. The origin of this work must not be misrepresented; you must
paulo@0:    not claim that you wrote the original work. If you use
paulo@0:    this work in a product, an acknowledgment in the product
paulo@0:    documentation would be appreciated but is not required.
paulo@0: 2. Altered source versions must be plainly marked as such, and must
paulo@0:    not be misrepresented as being the original work.
paulo@0: 3. This notice may not be removed or altered from any source
paulo@0:    distribution.
paulo@0: 
paulo@0: "Source" is the preferred form of a work for making changes to it.
paulo@0: 
paulo@0: */
paulo@0: 
paulo@0: #ifndef FONTDRAW_H
paulo@0: #define FONTDRAW_H
paulo@0: #include <sys/types.h>
paulo@0: 
paulo@0: #ifdef ARM9
paulo@0: // DS specific macros
paulo@0: #include <nds.h>
paulo@0: #ifndef BG_OFFSET_SUB
paulo@0: #define BG_OFFSET_SUB ((bg_scroll *)(0x04001010))
paulo@0: #endif
paulo@0: 
paulo@0: // macros from libgba that didn't make it to libnds
paulo@0: #ifndef MAP
paulo@0: typedef u16 NAMETABLE[32][32];
paulo@0: #define MAP ((NAMETABLE *)BG_MAP_RAM(0))
paulo@0: #define MAP_SUB ((NAMETABLE *)BG_MAP_RAM_SUB(0))
paulo@0: #endif
paulo@0: 
paulo@0: #else
paulo@0: // GBA specific macros
paulo@0: #include <gba_video.h>
paulo@0: 
paulo@0: #endif
paulo@0: 
paulo@0: unsigned int fontdraw_charWidth(int glyph);
paulo@0: unsigned int fontdraw_strWidth(const char *s);
paulo@0: 
paulo@0: /**
paulo@0:  * Returns the number of characters in s that fit within targetWidth pixels.
paulo@0:  */
paulo@0: size_t fontdraw_cutStr(const char *s, int targetWidth);
paulo@0: 
paulo@0: void fontdraw_setupVRAM(int sub);
paulo@0: 
paulo@0: // New API
paulo@0: 
paulo@0: typedef struct VWFWindow {
paulo@0:   u8 left;    // in 8 pixel units on nametable
paulo@0:   u8 top;     // in 8 pixel units on nametable
paulo@0:   u8 width;   // in 8 pixel units on nametable
paulo@0:   u8 height;  // in 8 pixel units on nametable
paulo@0:   u32 *chrBase;
paulo@0:   u8 map;  // in 2 KiB units on VRAM
paulo@0:   u8 core;    // 0: main; 1: sub
paulo@0:   u16 mapTileBase;
paulo@0: } VWFWindow;
paulo@0: 
paulo@0: void vwfWinInit(const VWFWindow *vwf);
paulo@0: void vwfWinClear(const VWFWindow *vwf);
paulo@0: /**
paulo@0:  * Sets up a portion of a window.
paulo@0:  * @param vwf the window
paulo@0:  * @param l distance in tiles from the left side of the window to the
paulo@0:  * left side of the area to be updated
paulo@0:  * @param t distance in tiles from the top of the window to the
paulo@0:  * top of the area to be updated
paulo@0:  * @param r distance in tiles from the left side of the window to the
paulo@0:  * right side of the area to be updated
paulo@0:  * @param b distance in tiles from the top of the window to the
paulo@0:  * bottom of the area to be updated
paulo@0:  * @param orMask the data to be OR'd with each map space, typically
paulo@0:  * containing a palette number in bits 12 to 15
paulo@0:  */
paulo@0: void vwfPutMap(const VWFWindow *vwf,
paulo@0:                int l, int t, int r, int b,
paulo@0:                unsigned int orMask);
paulo@0: 
paulo@0: unsigned int vwfPutc(const VWFWindow *w,
paulo@0:              int c,
paulo@0:              int x, int y);
paulo@0: unsigned int vwfPuts(const VWFWindow *src,
paulo@0:                      const char *str,
paulo@0:                      int x, int y);
paulo@0: void vwfRectfill(const VWFWindow *v,
paulo@0:                  int l, int t, int r, int b,
paulo@0:                  int c);
paulo@0: void vwfHline(const VWFWindow *v, int l, int t, int r, int c);
paulo@0: void vwfVline(const VWFWindow *v, int l, int t, int b, int c);
paulo@0: void vwfRect(const VWFWindow *v, int l, int t, int r, int b, int c);
paulo@0: 
paulo@0: /**
paulo@0:  * Replaces a rectangle of pixels in dst with pixels from src.
paulo@0:  * @param src the bitmap to copy from
paulo@0:  * @param dst the bitmap to copy to
paulo@0:  * @param srcX the left side of the part of src to copy,
paulo@0:  * in 8-pixel units
paulo@0:  * @param srcY the top of the part of src to copy,
paulo@0:  * in pixels
paulo@0:  * @param dstX the left side of the part of dst to be replaced,
paulo@0:  * in 8-pixel units
paulo@0:  * @param dstY the top of the part of src dst to be replaced,
paulo@0:  * in pixels
paulo@0:  */
paulo@0: void vwfBlitAligned(const VWFWindow *src, const VWFWindow *dst,
paulo@0:                     int srcX, int srcY, int dstX, int dstY,
paulo@0:                     int w, int h);
paulo@0: 
paulo@0: extern const VWFWindow vwfTop, vwfTouch;
paulo@0: 
paulo@0: 
paulo@0: #endif