diff options
Diffstat (limited to 'code/renderer/tr_font.c')
-rwxr-xr-x | code/renderer/tr_font.c | 1084 |
1 files changed, 542 insertions, 542 deletions
diff --git a/code/renderer/tr_font.c b/code/renderer/tr_font.c index a40c935..3813ce4 100755 --- a/code/renderer/tr_font.c +++ b/code/renderer/tr_font.c @@ -1,542 +1,542 @@ -/*
-===========================================================================
-Copyright (C) 1999-2005 Id Software, Inc.
-
-This file is part of Quake III Arena source code.
-
-Quake III Arena source code is free software; you can redistribute it
-and/or modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation; either version 2 of the License,
-or (at your option) any later version.
-
-Quake III Arena source code 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 General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with Foobar; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-===========================================================================
-*/
-// tr_font.c
-//
-//
-// The font system uses FreeType 2.x to render TrueType fonts for use within the game.
-// As of this writing ( Nov, 2000 ) Team Arena uses these fonts for all of the ui and
-// about 90% of the cgame presentation. A few areas of the CGAME were left uses the old
-// fonts since the code is shared with standard Q3A.
-//
-// If you include this font rendering code in a commercial product you MUST include the
-// following somewhere with your product, see www.freetype.org for specifics or changes.
-// The Freetype code also uses some hinting techniques that MIGHT infringe on patents
-// held by apple so be aware of that also.
-//
-// As of Q3A 1.25+ and Team Arena, we are shipping the game with the font rendering code
-// disabled. This removes any potential patent issues and it keeps us from having to
-// distribute an actual TrueTrype font which is 1. expensive to do and 2. seems to require
-// an act of god to accomplish.
-//
-// What we did was pre-render the fonts using FreeType ( which is why we leave the FreeType
-// credit in the credits ) and then saved off the glyph data and then hand touched up the
-// font bitmaps so they scale a bit better in GL.
-//
-// There are limitations in the way fonts are saved and reloaded in that it is based on
-// point size and not name. So if you pre-render Helvetica in 18 point and Impact in 18 point
-// you will end up with a single 18 point data file and image set. Typically you will want to
-// choose 3 sizes to best approximate the scaling you will be doing in the ui scripting system
-//
-// In the UI Scripting code, a scale of 1.0 is equal to a 48 point font. In Team Arena, we
-// use three or four scales, most of them exactly equaling the specific rendered size. We
-// rendered three sizes in Team Arena, 12, 16, and 20.
-//
-// To generate new font data you need to go through the following steps.
-// 1. delete the fontImage_x_xx.tga files and fontImage_xx.dat files from the fonts path.
-// 2. in a ui script, specificy a font, smallFont, and bigFont keyword with font name and
-// point size. the original TrueType fonts must exist in fonts at this point.
-// 3. run the game, you should see things normally.
-// 4. Exit the game and there will be three dat files and at least three tga files. The
-// tga's are in 256x256 pages so if it takes three images to render a 24 point font you
-// will end up with fontImage_0_24.tga through fontImage_2_24.tga
-// 5. You will need to flip the tga's in Photoshop as the tga output code writes them upside
-// down.
-// 6. In future runs of the game, the system looks for these images and data files when a s
-// specific point sized font is rendered and loads them for use.
-// 7. Because of the original beta nature of the FreeType code you will probably want to hand
-// touch the font bitmaps.
-//
-// Currently a define in the project turns on or off the FreeType code which is currently
-// defined out. To pre-render new fonts you need enable the define ( BUILD_FREETYPE ) and
-// uncheck the exclude from build check box in the FreeType2 area of the Renderer project.
-
-
-#include "tr_local.h"
-#include "../qcommon/qcommon.h"
-
-#ifdef BUILD_FREETYPE
-#include "../ft2/fterrors.h"
-#include "../ft2/ftsystem.h"
-#include "../ft2/ftimage.h"
-#include "../ft2/freetype.h"
-#include "../ft2/ftoutln.h"
-
-#define _FLOOR(x) ((x) & -64)
-#define _CEIL(x) (((x)+63) & -64)
-#define _TRUNC(x) ((x) >> 6)
-
-FT_Library ftLibrary = NULL;
-#endif
-
-#define MAX_FONTS 6
-static int registeredFontCount = 0;
-static fontInfo_t registeredFont[MAX_FONTS];
-
-#ifdef BUILD_FREETYPE
-void R_GetGlyphInfo(FT_GlyphSlot glyph, int *left, int *right, int *width, int *top, int *bottom, int *height, int *pitch) {
-
- *left = _FLOOR( glyph->metrics.horiBearingX );
- *right = _CEIL( glyph->metrics.horiBearingX + glyph->metrics.width );
- *width = _TRUNC(*right - *left);
-
- *top = _CEIL( glyph->metrics.horiBearingY );
- *bottom = _FLOOR( glyph->metrics.horiBearingY - glyph->metrics.height );
- *height = _TRUNC( *top - *bottom );
- *pitch = ( qtrue ? (*width+3) & -4 : (*width+7) >> 3 );
-}
-
-
-FT_Bitmap *R_RenderGlyph(FT_GlyphSlot glyph, glyphInfo_t* glyphOut) {
-
- FT_Bitmap *bit2;
- int left, right, width, top, bottom, height, pitch, size;
-
- R_GetGlyphInfo(glyph, &left, &right, &width, &top, &bottom, &height, &pitch);
-
- if ( glyph->format == ft_glyph_format_outline ) {
- size = pitch*height;
-
- bit2 = Z_Malloc(sizeof(FT_Bitmap));
-
- bit2->width = width;
- bit2->rows = height;
- bit2->pitch = pitch;
- bit2->pixel_mode = ft_pixel_mode_grays;
- //bit2->pixel_mode = ft_pixel_mode_mono;
- bit2->buffer = Z_Malloc(pitch*height);
- bit2->num_grays = 256;
-
- Com_Memset( bit2->buffer, 0, size );
-
- FT_Outline_Translate( &glyph->outline, -left, -bottom );
-
- FT_Outline_Get_Bitmap( ftLibrary, &glyph->outline, bit2 );
-
- glyphOut->height = height;
- glyphOut->pitch = pitch;
- glyphOut->top = (glyph->metrics.horiBearingY >> 6) + 1;
- glyphOut->bottom = bottom;
-
- return bit2;
- }
- else {
- ri.Printf(PRINT_ALL, "Non-outline fonts are not supported\n");
- }
- return NULL;
-}
-
-void WriteTGA (char *filename, byte *data, int width, int height) {
- byte *buffer;
- int i, c;
-
- buffer = Z_Malloc(width*height*4 + 18);
- Com_Memset (buffer, 0, 18);
- buffer[2] = 2; // uncompressed type
- buffer[12] = width&255;
- buffer[13] = width>>8;
- buffer[14] = height&255;
- buffer[15] = height>>8;
- buffer[16] = 32; // pixel size
-
- // swap rgb to bgr
- c = 18 + width * height * 4;
- for (i=18 ; i<c ; i+=4)
- {
- buffer[i] = data[i-18+2]; // blue
- buffer[i+1] = data[i-18+1]; // green
- buffer[i+2] = data[i-18+0]; // red
- buffer[i+3] = data[i-18+3]; // alpha
- }
-
- ri.FS_WriteFile(filename, buffer, c);
-
- //f = fopen (filename, "wb");
- //fwrite (buffer, 1, c, f);
- //fclose (f);
-
- Z_Free (buffer);
-}
-
-static glyphInfo_t *RE_ConstructGlyphInfo(unsigned char *imageOut, int *xOut, int *yOut, int *maxHeight, FT_Face face, const unsigned char c, qboolean calcHeight) {
- int i;
- static glyphInfo_t glyph;
- unsigned char *src, *dst;
- float scaled_width, scaled_height;
- FT_Bitmap *bitmap = NULL;
-
- Com_Memset(&glyph, 0, sizeof(glyphInfo_t));
- // make sure everything is here
- if (face != NULL) {
- FT_Load_Glyph(face, FT_Get_Char_Index( face, c), FT_LOAD_DEFAULT );
- bitmap = R_RenderGlyph(face->glyph, &glyph);
- if (bitmap) {
- glyph.xSkip = (face->glyph->metrics.horiAdvance >> 6) + 1;
- } else {
- return &glyph;
- }
-
- if (glyph.height > *maxHeight) {
- *maxHeight = glyph.height;
- }
-
- if (calcHeight) {
- Z_Free(bitmap->buffer);
- Z_Free(bitmap);
- return &glyph;
- }
-
-/*
- // need to convert to power of 2 sizes so we do not get
- // any scaling from the gl upload
- for (scaled_width = 1 ; scaled_width < glyph.pitch ; scaled_width<<=1)
- ;
- for (scaled_height = 1 ; scaled_height < glyph.height ; scaled_height<<=1)
- ;
-*/
-
- scaled_width = glyph.pitch;
- scaled_height = glyph.height;
-
- // we need to make sure we fit
- if (*xOut + scaled_width + 1 >= 255) {
- if (*yOut + *maxHeight + 1 >= 255) {
- *yOut = -1;
- *xOut = -1;
- Z_Free(bitmap->buffer);
- Z_Free(bitmap);
- return &glyph;
- } else {
- *xOut = 0;
- *yOut += *maxHeight + 1;
- }
- } else if (*yOut + *maxHeight + 1 >= 255) {
- *yOut = -1;
- *xOut = -1;
- Z_Free(bitmap->buffer);
- Z_Free(bitmap);
- return &glyph;
- }
-
-
- src = bitmap->buffer;
- dst = imageOut + (*yOut * 256) + *xOut;
-
- if (bitmap->pixel_mode == ft_pixel_mode_mono) {
- for (i = 0; i < glyph.height; i++) {
- int j;
- unsigned char *_src = src;
- unsigned char *_dst = dst;
- unsigned char mask = 0x80;
- unsigned char val = *_src;
- for (j = 0; j < glyph.pitch; j++) {
- if (mask == 0x80) {
- val = *_src++;
- }
- if (val & mask) {
- *_dst = 0xff;
- }
- mask >>= 1;
-
- if ( mask == 0 ) {
- mask = 0x80;
- }
- _dst++;
- }
-
- src += glyph.pitch;
- dst += 256;
-
- }
- } else {
- for (i = 0; i < glyph.height; i++) {
- Com_Memcpy(dst, src, glyph.pitch);
- src += glyph.pitch;
- dst += 256;
- }
- }
-
- // we now have an 8 bit per pixel grey scale bitmap
- // that is width wide and pf->ftSize->metrics.y_ppem tall
-
- glyph.imageHeight = scaled_height;
- glyph.imageWidth = scaled_width;
- glyph.s = (float)*xOut / 256;
- glyph.t = (float)*yOut / 256;
- glyph.s2 = glyph.s + (float)scaled_width / 256;
- glyph.t2 = glyph.t + (float)scaled_height / 256;
-
- *xOut += scaled_width + 1;
- }
-
- Z_Free(bitmap->buffer);
- Z_Free(bitmap);
-
- return &glyph;
-}
-#endif
-
-static int fdOffset;
-static byte *fdFile;
-
-int readInt() {
- int i = fdFile[fdOffset]+(fdFile[fdOffset+1]<<8)+(fdFile[fdOffset+2]<<16)+(fdFile[fdOffset+3]<<24);
- fdOffset += 4;
- return i;
-}
-
-typedef union {
- byte fred[4];
- float ffred;
-} poor;
-
-float readFloat() {
- poor me;
-#if idppc
- me.fred[0] = fdFile[fdOffset+3];
- me.fred[1] = fdFile[fdOffset+2];
- me.fred[2] = fdFile[fdOffset+1];
- me.fred[3] = fdFile[fdOffset+0];
-#else
- me.fred[0] = fdFile[fdOffset+0];
- me.fred[1] = fdFile[fdOffset+1];
- me.fred[2] = fdFile[fdOffset+2];
- me.fred[3] = fdFile[fdOffset+3];
-#endif
- fdOffset += 4;
- return me.ffred;
-}
-
-void RE_RegisterFont(const char *fontName, int pointSize, fontInfo_t *font) {
-#ifdef BUILD_FREETYPE
- FT_Face face;
- int j, k, xOut, yOut, lastStart, imageNumber;
- int scaledSize, newSize, maxHeight, left, satLevels;
- unsigned char *out, *imageBuff;
- glyphInfo_t *glyph;
- image_t *image;
- qhandle_t h;
- float max;
-#endif
- void *faceData;
- int i, len;
- char name[1024];
- float dpi = 72; //
- float glyphScale = 72.0f / dpi; // change the scale to be relative to 1 based on 72 dpi ( so dpi of 144 means a scale of .5 )
-
- if (pointSize <= 0) {
- pointSize = 12;
- }
- // we also need to adjust the scale based on point size relative to 48 points as the ui scaling is based on a 48 point font
- glyphScale *= 48.0f / pointSize;
-
- // make sure the render thread is stopped
- R_SyncRenderThread();
-
- if (registeredFontCount >= MAX_FONTS) {
- ri.Printf(PRINT_ALL, "RE_RegisterFont: Too many fonts registered already.\n");
- return;
- }
-
- Com_sprintf(name, sizeof(name), "fonts/fontImage_%i.dat",pointSize);
- for (i = 0; i < registeredFontCount; i++) {
- if (Q_stricmp(name, registeredFont[i].name) == 0) {
- Com_Memcpy(font, ®isteredFont[i], sizeof(fontInfo_t));
- return;
- }
- }
-
- len = ri.FS_ReadFile(name, NULL);
- if (len == sizeof(fontInfo_t)) {
- ri.FS_ReadFile(name, &faceData);
- fdOffset = 0;
- fdFile = faceData;
- for(i=0; i<GLYPHS_PER_FONT; i++) {
- font->glyphs[i].height = readInt();
- font->glyphs[i].top = readInt();
- font->glyphs[i].bottom = readInt();
- font->glyphs[i].pitch = readInt();
- font->glyphs[i].xSkip = readInt();
- font->glyphs[i].imageWidth = readInt();
- font->glyphs[i].imageHeight = readInt();
- font->glyphs[i].s = readFloat();
- font->glyphs[i].t = readFloat();
- font->glyphs[i].s2 = readFloat();
- font->glyphs[i].t2 = readFloat();
- font->glyphs[i].glyph = readInt();
- Com_Memcpy(font->glyphs[i].shaderName, &fdFile[fdOffset], 32);
- fdOffset += 32;
- }
- font->glyphScale = readFloat();
- Com_Memcpy(font->name, &fdFile[fdOffset], MAX_QPATH);
-
-// Com_Memcpy(font, faceData, sizeof(fontInfo_t));
- Q_strncpyz(font->name, name, sizeof(font->name));
- for (i = GLYPH_START; i < GLYPH_END; i++) {
- font->glyphs[i].glyph = RE_RegisterShaderNoMip(font->glyphs[i].shaderName);
- }
- Com_Memcpy(®isteredFont[registeredFontCount++], font, sizeof(fontInfo_t));
- return;
- }
-
-#ifndef BUILD_FREETYPE
- ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType code not available\n");
-#else
- if (ftLibrary == NULL) {
- ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType not initialized.\n");
- return;
- }
-
- len = ri.FS_ReadFile(fontName, &faceData);
- if (len <= 0) {
- ri.Printf(PRINT_ALL, "RE_RegisterFont: Unable to read font file\n");
- return;
- }
-
- // allocate on the stack first in case we fail
- if (FT_New_Memory_Face( ftLibrary, faceData, len, 0, &face )) {
- ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType2, unable to allocate new face.\n");
- return;
- }
-
-
- if (FT_Set_Char_Size( face, pointSize << 6, pointSize << 6, dpi, dpi)) {
- ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType2, Unable to set face char size.\n");
- return;
- }
-
- //*font = ®isteredFonts[registeredFontCount++];
-
- // make a 256x256 image buffer, once it is full, register it, clean it and keep going
- // until all glyphs are rendered
-
- out = Z_Malloc(1024*1024);
- if (out == NULL) {
- ri.Printf(PRINT_ALL, "RE_RegisterFont: Z_Malloc failure during output image creation.\n");
- return;
- }
- Com_Memset(out, 0, 1024*1024);
-
- maxHeight = 0;
-
- for (i = GLYPH_START; i < GLYPH_END; i++) {
- glyph = RE_ConstructGlyphInfo(out, &xOut, &yOut, &maxHeight, face, (unsigned char)i, qtrue);
- }
-
- xOut = 0;
- yOut = 0;
- i = GLYPH_START;
- lastStart = i;
- imageNumber = 0;
-
- while ( i <= GLYPH_END ) {
-
- glyph = RE_ConstructGlyphInfo(out, &xOut, &yOut, &maxHeight, face, (unsigned char)i, qfalse);
-
- if (xOut == -1 || yOut == -1 || i == GLYPH_END) {
- // ran out of room
- // we need to create an image from the bitmap, set all the handles in the glyphs to this point
- //
-
- scaledSize = 256*256;
- newSize = scaledSize * 4;
- imageBuff = Z_Malloc(newSize);
- left = 0;
- max = 0;
- satLevels = 255;
- for ( k = 0; k < (scaledSize) ; k++ ) {
- if (max < out[k]) {
- max = out[k];
- }
- }
-
- if (max > 0) {
- max = 255/max;
- }
-
- for ( k = 0; k < (scaledSize) ; k++ ) {
- imageBuff[left++] = 255;
- imageBuff[left++] = 255;
- imageBuff[left++] = 255;
-
- imageBuff[left++] = ((float)out[k] * max);
- }
-
- Com_sprintf (name, sizeof(name), "fonts/fontImage_%i_%i.tga", imageNumber++, pointSize);
- if (r_saveFontData->integer) {
- WriteTGA(name, imageBuff, 256, 256);
- }
-
- //Com_sprintf (name, sizeof(name), "fonts/fontImage_%i_%i", imageNumber++, pointSize);
- image = R_CreateImage(name, imageBuff, 256, 256, qfalse, qfalse, GL_CLAMP);
- h = RE_RegisterShaderFromImage(name, LIGHTMAP_2D, image, qfalse);
- for (j = lastStart; j < i; j++) {
- font->glyphs[j].glyph = h;
- Q_strncpyz(font->glyphs[j].shaderName, name, sizeof(font->glyphs[j].shaderName));
- }
- lastStart = i;
- Com_Memset(out, 0, 1024*1024);
- xOut = 0;
- yOut = 0;
- Z_Free(imageBuff);
- i++;
- } else {
- Com_Memcpy(&font->glyphs[i], glyph, sizeof(glyphInfo_t));
- i++;
- }
- }
-
- registeredFont[registeredFontCount].glyphScale = glyphScale;
- font->glyphScale = glyphScale;
- Com_Memcpy(®isteredFont[registeredFontCount++], font, sizeof(fontInfo_t));
-
- if (r_saveFontData->integer) {
- ri.FS_WriteFile(va("fonts/fontImage_%i.dat", pointSize), font, sizeof(fontInfo_t));
- }
-
- Z_Free(out);
-
- ri.FS_FreeFile(faceData);
-#endif
-}
-
-
-
-void R_InitFreeType() {
-#ifdef BUILD_FREETYPE
- if (FT_Init_FreeType( &ftLibrary )) {
- ri.Printf(PRINT_ALL, "R_InitFreeType: Unable to initialize FreeType.\n");
- }
-#endif
- registeredFontCount = 0;
-}
-
-
-void R_DoneFreeType() {
-#ifdef BUILD_FREETYPE
- if (ftLibrary) {
- FT_Done_FreeType( ftLibrary );
- ftLibrary = NULL;
- }
-#endif
- registeredFontCount = 0;
-}
-
+/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. + +This file is part of Quake III Arena source code. + +Quake III Arena source code is free software; you can redistribute it +and/or modify it under the terms of the GNU General Public License as +published by the Free Software Foundation; either version 2 of the License, +or (at your option) any later version. + +Quake III Arena source code 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 General Public License for more details. + +You should have received a copy of the GNU General Public License +along with Foobar; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +// tr_font.c +// +// +// The font system uses FreeType 2.x to render TrueType fonts for use within the game. +// As of this writing ( Nov, 2000 ) Team Arena uses these fonts for all of the ui and +// about 90% of the cgame presentation. A few areas of the CGAME were left uses the old +// fonts since the code is shared with standard Q3A. +// +// If you include this font rendering code in a commercial product you MUST include the +// following somewhere with your product, see www.freetype.org for specifics or changes. +// The Freetype code also uses some hinting techniques that MIGHT infringe on patents +// held by apple so be aware of that also. +// +// As of Q3A 1.25+ and Team Arena, we are shipping the game with the font rendering code +// disabled. This removes any potential patent issues and it keeps us from having to +// distribute an actual TrueTrype font which is 1. expensive to do and 2. seems to require +// an act of god to accomplish. +// +// What we did was pre-render the fonts using FreeType ( which is why we leave the FreeType +// credit in the credits ) and then saved off the glyph data and then hand touched up the +// font bitmaps so they scale a bit better in GL. +// +// There are limitations in the way fonts are saved and reloaded in that it is based on +// point size and not name. So if you pre-render Helvetica in 18 point and Impact in 18 point +// you will end up with a single 18 point data file and image set. Typically you will want to +// choose 3 sizes to best approximate the scaling you will be doing in the ui scripting system +// +// In the UI Scripting code, a scale of 1.0 is equal to a 48 point font. In Team Arena, we +// use three or four scales, most of them exactly equaling the specific rendered size. We +// rendered three sizes in Team Arena, 12, 16, and 20. +// +// To generate new font data you need to go through the following steps. +// 1. delete the fontImage_x_xx.tga files and fontImage_xx.dat files from the fonts path. +// 2. in a ui script, specificy a font, smallFont, and bigFont keyword with font name and +// point size. the original TrueType fonts must exist in fonts at this point. +// 3. run the game, you should see things normally. +// 4. Exit the game and there will be three dat files and at least three tga files. The +// tga's are in 256x256 pages so if it takes three images to render a 24 point font you +// will end up with fontImage_0_24.tga through fontImage_2_24.tga +// 5. You will need to flip the tga's in Photoshop as the tga output code writes them upside +// down. +// 6. In future runs of the game, the system looks for these images and data files when a s +// specific point sized font is rendered and loads them for use. +// 7. Because of the original beta nature of the FreeType code you will probably want to hand +// touch the font bitmaps. +// +// Currently a define in the project turns on or off the FreeType code which is currently +// defined out. To pre-render new fonts you need enable the define ( BUILD_FREETYPE ) and +// uncheck the exclude from build check box in the FreeType2 area of the Renderer project. + + +#include "tr_local.h" +#include "../qcommon/qcommon.h" + +#ifdef BUILD_FREETYPE +#include "../ft2/fterrors.h" +#include "../ft2/ftsystem.h" +#include "../ft2/ftimage.h" +#include "../ft2/freetype.h" +#include "../ft2/ftoutln.h" + +#define _FLOOR(x) ((x) & -64) +#define _CEIL(x) (((x)+63) & -64) +#define _TRUNC(x) ((x) >> 6) + +FT_Library ftLibrary = NULL; +#endif + +#define MAX_FONTS 6 +static int registeredFontCount = 0; +static fontInfo_t registeredFont[MAX_FONTS]; + +#ifdef BUILD_FREETYPE +void R_GetGlyphInfo(FT_GlyphSlot glyph, int *left, int *right, int *width, int *top, int *bottom, int *height, int *pitch) { + + *left = _FLOOR( glyph->metrics.horiBearingX ); + *right = _CEIL( glyph->metrics.horiBearingX + glyph->metrics.width ); + *width = _TRUNC(*right - *left); + + *top = _CEIL( glyph->metrics.horiBearingY ); + *bottom = _FLOOR( glyph->metrics.horiBearingY - glyph->metrics.height ); + *height = _TRUNC( *top - *bottom ); + *pitch = ( qtrue ? (*width+3) & -4 : (*width+7) >> 3 ); +} + + +FT_Bitmap *R_RenderGlyph(FT_GlyphSlot glyph, glyphInfo_t* glyphOut) { + + FT_Bitmap *bit2; + int left, right, width, top, bottom, height, pitch, size; + + R_GetGlyphInfo(glyph, &left, &right, &width, &top, &bottom, &height, &pitch); + + if ( glyph->format == ft_glyph_format_outline ) { + size = pitch*height; + + bit2 = Z_Malloc(sizeof(FT_Bitmap)); + + bit2->width = width; + bit2->rows = height; + bit2->pitch = pitch; + bit2->pixel_mode = ft_pixel_mode_grays; + //bit2->pixel_mode = ft_pixel_mode_mono; + bit2->buffer = Z_Malloc(pitch*height); + bit2->num_grays = 256; + + Com_Memset( bit2->buffer, 0, size ); + + FT_Outline_Translate( &glyph->outline, -left, -bottom ); + + FT_Outline_Get_Bitmap( ftLibrary, &glyph->outline, bit2 ); + + glyphOut->height = height; + glyphOut->pitch = pitch; + glyphOut->top = (glyph->metrics.horiBearingY >> 6) + 1; + glyphOut->bottom = bottom; + + return bit2; + } + else { + ri.Printf(PRINT_ALL, "Non-outline fonts are not supported\n"); + } + return NULL; +} + +void WriteTGA (char *filename, byte *data, int width, int height) { + byte *buffer; + int i, c; + + buffer = Z_Malloc(width*height*4 + 18); + Com_Memset (buffer, 0, 18); + buffer[2] = 2; // uncompressed type + buffer[12] = width&255; + buffer[13] = width>>8; + buffer[14] = height&255; + buffer[15] = height>>8; + buffer[16] = 32; // pixel size + + // swap rgb to bgr + c = 18 + width * height * 4; + for (i=18 ; i<c ; i+=4) + { + buffer[i] = data[i-18+2]; // blue + buffer[i+1] = data[i-18+1]; // green + buffer[i+2] = data[i-18+0]; // red + buffer[i+3] = data[i-18+3]; // alpha + } + + ri.FS_WriteFile(filename, buffer, c); + + //f = fopen (filename, "wb"); + //fwrite (buffer, 1, c, f); + //fclose (f); + + Z_Free (buffer); +} + +static glyphInfo_t *RE_ConstructGlyphInfo(unsigned char *imageOut, int *xOut, int *yOut, int *maxHeight, FT_Face face, const unsigned char c, qboolean calcHeight) { + int i; + static glyphInfo_t glyph; + unsigned char *src, *dst; + float scaled_width, scaled_height; + FT_Bitmap *bitmap = NULL; + + Com_Memset(&glyph, 0, sizeof(glyphInfo_t)); + // make sure everything is here + if (face != NULL) { + FT_Load_Glyph(face, FT_Get_Char_Index( face, c), FT_LOAD_DEFAULT ); + bitmap = R_RenderGlyph(face->glyph, &glyph); + if (bitmap) { + glyph.xSkip = (face->glyph->metrics.horiAdvance >> 6) + 1; + } else { + return &glyph; + } + + if (glyph.height > *maxHeight) { + *maxHeight = glyph.height; + } + + if (calcHeight) { + Z_Free(bitmap->buffer); + Z_Free(bitmap); + return &glyph; + } + +/* + // need to convert to power of 2 sizes so we do not get + // any scaling from the gl upload + for (scaled_width = 1 ; scaled_width < glyph.pitch ; scaled_width<<=1) + ; + for (scaled_height = 1 ; scaled_height < glyph.height ; scaled_height<<=1) + ; +*/ + + scaled_width = glyph.pitch; + scaled_height = glyph.height; + + // we need to make sure we fit + if (*xOut + scaled_width + 1 >= 255) { + if (*yOut + *maxHeight + 1 >= 255) { + *yOut = -1; + *xOut = -1; + Z_Free(bitmap->buffer); + Z_Free(bitmap); + return &glyph; + } else { + *xOut = 0; + *yOut += *maxHeight + 1; + } + } else if (*yOut + *maxHeight + 1 >= 255) { + *yOut = -1; + *xOut = -1; + Z_Free(bitmap->buffer); + Z_Free(bitmap); + return &glyph; + } + + + src = bitmap->buffer; + dst = imageOut + (*yOut * 256) + *xOut; + + if (bitmap->pixel_mode == ft_pixel_mode_mono) { + for (i = 0; i < glyph.height; i++) { + int j; + unsigned char *_src = src; + unsigned char *_dst = dst; + unsigned char mask = 0x80; + unsigned char val = *_src; + for (j = 0; j < glyph.pitch; j++) { + if (mask == 0x80) { + val = *_src++; + } + if (val & mask) { + *_dst = 0xff; + } + mask >>= 1; + + if ( mask == 0 ) { + mask = 0x80; + } + _dst++; + } + + src += glyph.pitch; + dst += 256; + + } + } else { + for (i = 0; i < glyph.height; i++) { + Com_Memcpy(dst, src, glyph.pitch); + src += glyph.pitch; + dst += 256; + } + } + + // we now have an 8 bit per pixel grey scale bitmap + // that is width wide and pf->ftSize->metrics.y_ppem tall + + glyph.imageHeight = scaled_height; + glyph.imageWidth = scaled_width; + glyph.s = (float)*xOut / 256; + glyph.t = (float)*yOut / 256; + glyph.s2 = glyph.s + (float)scaled_width / 256; + glyph.t2 = glyph.t + (float)scaled_height / 256; + + *xOut += scaled_width + 1; + } + + Z_Free(bitmap->buffer); + Z_Free(bitmap); + + return &glyph; +} +#endif + +static int fdOffset; +static byte *fdFile; + +int readInt() { + int i = fdFile[fdOffset]+(fdFile[fdOffset+1]<<8)+(fdFile[fdOffset+2]<<16)+(fdFile[fdOffset+3]<<24); + fdOffset += 4; + return i; +} + +typedef union { + byte fred[4]; + float ffred; +} poor; + +float readFloat() { + poor me; +#if idppc + me.fred[0] = fdFile[fdOffset+3]; + me.fred[1] = fdFile[fdOffset+2]; + me.fred[2] = fdFile[fdOffset+1]; + me.fred[3] = fdFile[fdOffset+0]; +#else + me.fred[0] = fdFile[fdOffset+0]; + me.fred[1] = fdFile[fdOffset+1]; + me.fred[2] = fdFile[fdOffset+2]; + me.fred[3] = fdFile[fdOffset+3]; +#endif + fdOffset += 4; + return me.ffred; +} + +void RE_RegisterFont(const char *fontName, int pointSize, fontInfo_t *font) { +#ifdef BUILD_FREETYPE + FT_Face face; + int j, k, xOut, yOut, lastStart, imageNumber; + int scaledSize, newSize, maxHeight, left, satLevels; + unsigned char *out, *imageBuff; + glyphInfo_t *glyph; + image_t *image; + qhandle_t h; + float max; +#endif + void *faceData; + int i, len; + char name[1024]; + float dpi = 72; // + float glyphScale = 72.0f / dpi; // change the scale to be relative to 1 based on 72 dpi ( so dpi of 144 means a scale of .5 ) + + if (pointSize <= 0) { + pointSize = 12; + } + // we also need to adjust the scale based on point size relative to 48 points as the ui scaling is based on a 48 point font + glyphScale *= 48.0f / pointSize; + + // make sure the render thread is stopped + R_SyncRenderThread(); + + if (registeredFontCount >= MAX_FONTS) { + ri.Printf(PRINT_ALL, "RE_RegisterFont: Too many fonts registered already.\n"); + return; + } + + Com_sprintf(name, sizeof(name), "fonts/fontImage_%i.dat",pointSize); + for (i = 0; i < registeredFontCount; i++) { + if (Q_stricmp(name, registeredFont[i].name) == 0) { + Com_Memcpy(font, ®isteredFont[i], sizeof(fontInfo_t)); + return; + } + } + + len = ri.FS_ReadFile(name, NULL); + if (len == sizeof(fontInfo_t)) { + ri.FS_ReadFile(name, &faceData); + fdOffset = 0; + fdFile = faceData; + for(i=0; i<GLYPHS_PER_FONT; i++) { + font->glyphs[i].height = readInt(); + font->glyphs[i].top = readInt(); + font->glyphs[i].bottom = readInt(); + font->glyphs[i].pitch = readInt(); + font->glyphs[i].xSkip = readInt(); + font->glyphs[i].imageWidth = readInt(); + font->glyphs[i].imageHeight = readInt(); + font->glyphs[i].s = readFloat(); + font->glyphs[i].t = readFloat(); + font->glyphs[i].s2 = readFloat(); + font->glyphs[i].t2 = readFloat(); + font->glyphs[i].glyph = readInt(); + Com_Memcpy(font->glyphs[i].shaderName, &fdFile[fdOffset], 32); + fdOffset += 32; + } + font->glyphScale = readFloat(); + Com_Memcpy(font->name, &fdFile[fdOffset], MAX_QPATH); + +// Com_Memcpy(font, faceData, sizeof(fontInfo_t)); + Q_strncpyz(font->name, name, sizeof(font->name)); + for (i = GLYPH_START; i < GLYPH_END; i++) { + font->glyphs[i].glyph = RE_RegisterShaderNoMip(font->glyphs[i].shaderName); + } + Com_Memcpy(®isteredFont[registeredFontCount++], font, sizeof(fontInfo_t)); + return; + } + +#ifndef BUILD_FREETYPE + ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType code not available\n"); +#else + if (ftLibrary == NULL) { + ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType not initialized.\n"); + return; + } + + len = ri.FS_ReadFile(fontName, &faceData); + if (len <= 0) { + ri.Printf(PRINT_ALL, "RE_RegisterFont: Unable to read font file\n"); + return; + } + + // allocate on the stack first in case we fail + if (FT_New_Memory_Face( ftLibrary, faceData, len, 0, &face )) { + ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType2, unable to allocate new face.\n"); + return; + } + + + if (FT_Set_Char_Size( face, pointSize << 6, pointSize << 6, dpi, dpi)) { + ri.Printf(PRINT_ALL, "RE_RegisterFont: FreeType2, Unable to set face char size.\n"); + return; + } + + //*font = ®isteredFonts[registeredFontCount++]; + + // make a 256x256 image buffer, once it is full, register it, clean it and keep going + // until all glyphs are rendered + + out = Z_Malloc(1024*1024); + if (out == NULL) { + ri.Printf(PRINT_ALL, "RE_RegisterFont: Z_Malloc failure during output image creation.\n"); + return; + } + Com_Memset(out, 0, 1024*1024); + + maxHeight = 0; + + for (i = GLYPH_START; i < GLYPH_END; i++) { + glyph = RE_ConstructGlyphInfo(out, &xOut, &yOut, &maxHeight, face, (unsigned char)i, qtrue); + } + + xOut = 0; + yOut = 0; + i = GLYPH_START; + lastStart = i; + imageNumber = 0; + + while ( i <= GLYPH_END ) { + + glyph = RE_ConstructGlyphInfo(out, &xOut, &yOut, &maxHeight, face, (unsigned char)i, qfalse); + + if (xOut == -1 || yOut == -1 || i == GLYPH_END) { + // ran out of room + // we need to create an image from the bitmap, set all the handles in the glyphs to this point + // + + scaledSize = 256*256; + newSize = scaledSize * 4; + imageBuff = Z_Malloc(newSize); + left = 0; + max = 0; + satLevels = 255; + for ( k = 0; k < (scaledSize) ; k++ ) { + if (max < out[k]) { + max = out[k]; + } + } + + if (max > 0) { + max = 255/max; + } + + for ( k = 0; k < (scaledSize) ; k++ ) { + imageBuff[left++] = 255; + imageBuff[left++] = 255; + imageBuff[left++] = 255; + + imageBuff[left++] = ((float)out[k] * max); + } + + Com_sprintf (name, sizeof(name), "fonts/fontImage_%i_%i.tga", imageNumber++, pointSize); + if (r_saveFontData->integer) { + WriteTGA(name, imageBuff, 256, 256); + } + + //Com_sprintf (name, sizeof(name), "fonts/fontImage_%i_%i", imageNumber++, pointSize); + image = R_CreateImage(name, imageBuff, 256, 256, qfalse, qfalse, GL_CLAMP); + h = RE_RegisterShaderFromImage(name, LIGHTMAP_2D, image, qfalse); + for (j = lastStart; j < i; j++) { + font->glyphs[j].glyph = h; + Q_strncpyz(font->glyphs[j].shaderName, name, sizeof(font->glyphs[j].shaderName)); + } + lastStart = i; + Com_Memset(out, 0, 1024*1024); + xOut = 0; + yOut = 0; + Z_Free(imageBuff); + i++; + } else { + Com_Memcpy(&font->glyphs[i], glyph, sizeof(glyphInfo_t)); + i++; + } + } + + registeredFont[registeredFontCount].glyphScale = glyphScale; + font->glyphScale = glyphScale; + Com_Memcpy(®isteredFont[registeredFontCount++], font, sizeof(fontInfo_t)); + + if (r_saveFontData->integer) { + ri.FS_WriteFile(va("fonts/fontImage_%i.dat", pointSize), font, sizeof(fontInfo_t)); + } + + Z_Free(out); + + ri.FS_FreeFile(faceData); +#endif +} + + + +void R_InitFreeType() { +#ifdef BUILD_FREETYPE + if (FT_Init_FreeType( &ftLibrary )) { + ri.Printf(PRINT_ALL, "R_InitFreeType: Unable to initialize FreeType.\n"); + } +#endif + registeredFontCount = 0; +} + + +void R_DoneFreeType() { +#ifdef BUILD_FREETYPE + if (ftLibrary) { + FT_Done_FreeType( ftLibrary ); + ftLibrary = NULL; + } +#endif + registeredFontCount = 0; +} + |