mirror of
https://github.com/jmarshall23/DoomRTX.git
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Doom 3 RTX Initial Checkin.
This commit is contained in:
Justin Marshall
@@ -0,0 +1,548 @@
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/*
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===========================================================================
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Doom 3 GPL Source Code
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Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
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||||
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||||
Doom 3 Source Code is distributed in the hope that it will be useful,
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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.
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||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
|
||||
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||||
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
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||||
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||||
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#include "precompiled.h"
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#include "tr_local.h"
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#define FILESIZE_fontInfo_t (20548)
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#ifdef BUILD_FREETYPE
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#include "../ft2/fterrors.h"
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#include "../ft2/ftsystem.h"
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#include "../ft2/ftimage.h"
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#include "../ft2/freetype.h"
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#include "../ft2/ftoutln.h"
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#define _FLOOR(x) ((x) & -64)
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#define _CEIL(x) (((x)+63) & -64)
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#define _TRUNC(x) ((x) >> 6)
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FT_Library ftLibrary = NULL;
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#endif
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#ifdef BUILD_FREETYPE
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/*
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============
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R_GetGlyphInfo
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============
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*/
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void R_GetGlyphInfo(FT_GlyphSlot glyph, int* left, int* right, int* width, int* top, int* bottom, int* height, int* pitch) {
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*left = _FLOOR(glyph->metrics.horiBearingX);
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*right = _CEIL(glyph->metrics.horiBearingX + glyph->metrics.width);
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*width = _TRUNC(*right - *left);
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*top = _CEIL(glyph->metrics.horiBearingY);
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*bottom = _FLOOR(glyph->metrics.horiBearingY - glyph->metrics.height);
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*height = _TRUNC(*top - *bottom);
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*pitch = (qtrue ? (*width + 3) & -4 : (*width + 7) >> 3);
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}
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/*
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============
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R_RenderGlyph
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============
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*/
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FT_Bitmap* R_RenderGlyph(FT_GlyphSlot glyph, glyphInfo_t* glyphOut) {
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FT_Bitmap* bit2;
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int left, right, width, top, bottom, height, pitch, size;
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R_GetGlyphInfo(glyph, &left, &right, &width, &top, &bottom, &height, &pitch);
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if (glyph->format == ft_glyph_format_outline) {
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size = pitch * height;
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bit2 = Mem_Alloc(sizeof(FT_Bitmap));
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bit2->width = width;
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bit2->rows = height;
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bit2->pitch = pitch;
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bit2->pixel_mode = ft_pixel_mode_grays;
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//bit2->pixel_mode = ft_pixel_mode_mono;
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bit2->buffer = Mem_Alloc(pitch * height);
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bit2->num_grays = 256;
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memset(bit2->buffer, 0, size);
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FT_Outline_Translate(&glyph->outline, -left, -bottom);
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FT_Outline_Get_Bitmap(ftLibrary, &glyph->outline, bit2);
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glyphOut->height = height;
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glyphOut->pitch = pitch;
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glyphOut->top = (glyph->metrics.horiBearingY >> 6) + 1;
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glyphOut->bottom = bottom;
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return bit2;
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}
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else {
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common->Printf("Non-outline fonts are not supported\n");
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}
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return NULL;
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}
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/*
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============
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RE_ConstructGlyphInfo
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============
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*/
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glyphInfo_t* RE_ConstructGlyphInfo(unsigned char* imageOut, int* xOut, int* yOut, int* maxHeight, FT_Face face, const unsigned char c, qboolean calcHeight) {
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int i;
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static glyphInfo_t glyph;
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unsigned char* src, * dst;
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float scaled_width, scaled_height;
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FT_Bitmap* bitmap = NULL;
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memset(&glyph, 0, sizeof(glyphInfo_t));
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// make sure everything is here
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if (face != NULL) {
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FT_Load_Glyph(face, FT_Get_Char_Index(face, c), FT_LOAD_DEFAULT);
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bitmap = R_RenderGlyph(face->glyph, &glyph);
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if (bitmap) {
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glyph.xSkip = (face->glyph->metrics.horiAdvance >> 6) + 1;
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}
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else {
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return &glyph;
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}
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if (glyph.height > *maxHeight) {
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*maxHeight = glyph.height;
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}
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if (calcHeight) {
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Mem_Free(bitmap->buffer);
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Mem_Free(bitmap);
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return &glyph;
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}
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/*
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// need to convert to power of 2 sizes so we do not get
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// any scaling from the gl upload
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for (scaled_width = 1 ; scaled_width < glyph.pitch ; scaled_width<<=1)
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;
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for (scaled_height = 1 ; scaled_height < glyph.height ; scaled_height<<=1)
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;
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*/
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scaled_width = glyph.pitch;
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scaled_height = glyph.height;
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// we need to make sure we fit
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if (*xOut + scaled_width + 1 >= 255) {
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if (*yOut + *maxHeight + 1 >= 255) {
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*yOut = -1;
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*xOut = -1;
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Mem_Free(bitmap->buffer);
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Mem_Free(bitmap);
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return &glyph;
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}
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else {
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*xOut = 0;
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*yOut += *maxHeight + 1;
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}
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}
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else if (*yOut + *maxHeight + 1 >= 255) {
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*yOut = -1;
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*xOut = -1;
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Mem_Free(bitmap->buffer);
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Mem_Free(bitmap);
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return &glyph;
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}
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src = bitmap->buffer;
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dst = imageOut + (*yOut * 256) + *xOut;
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if (bitmap->pixel_mode == ft_pixel_mode_mono) {
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for (i = 0; i < glyph.height; i++) {
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int j;
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unsigned char* _src = src;
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unsigned char* _dst = dst;
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unsigned char mask = 0x80;
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unsigned char val = *_src;
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for (j = 0; j < glyph.pitch; j++) {
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if (mask == 0x80) {
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val = *_src++;
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}
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if (val & mask) {
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*_dst = 0xff;
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}
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mask >>= 1;
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if (mask == 0) {
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mask = 0x80;
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}
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_dst++;
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}
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src += glyph.pitch;
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dst += 256;
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}
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}
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else {
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for (i = 0; i < glyph.height; i++) {
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memcpy(dst, src, glyph.pitch);
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src += glyph.pitch;
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dst += 256;
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}
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}
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// we now have an 8 bit per pixel grey scale bitmap
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// that is width wide and pf->ftSize->metrics.y_ppem tall
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glyph.imageHeight = scaled_height;
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glyph.imageWidth = scaled_width;
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glyph.s = (float)*xOut / 256;
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glyph.t = (float)*yOut / 256;
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glyph.s2 = glyph.s + (float)scaled_width / 256;
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glyph.t2 = glyph.t + (float)scaled_height / 256;
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*xOut += scaled_width + 1;
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}
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Mem_Free(bitmap->buffer);
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Mem_Free(bitmap);
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return &glyph;
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}
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#endif
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static int fdOffset;
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static byte* fdFile;
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/*
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============
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readInt
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============
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*/
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int readInt(void) {
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int i = fdFile[fdOffset] + (fdFile[fdOffset + 1] << 8) + (fdFile[fdOffset + 2] << 16) + (fdFile[fdOffset + 3] << 24);
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fdOffset += 4;
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return i;
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}
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/*
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============
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readFloat
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============
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*/
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float readFloat(void) {
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float f;
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memcpy(&f, &fdFile[fdOffset], sizeof(float));
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fdOffset += sizeof(float);
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return LittleFloat(f);
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}
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/*
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============
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RegisterFont
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Loads 3 point sizes, 12, 24, and 48
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============
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*/
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bool idRenderSystemLocal::RegisterFont(const char* fontName, fontInfoEx_t& font) {
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#ifdef BUILD_FREETYPE
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FT_Face face;
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int j, k, xOut, yOut, lastStart, imageNumber;
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int scaledSize, newSize, maxHeight, left, satLevels;
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unsigned char* out, * imageBuff;
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glyphInfo_t* glyph;
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idImage* image;
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idMaterial* h;
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float max;
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#endif
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void* faceData;
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ID_TIME_T ftime;
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int i, len, fontCount;
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char name[1024];
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int pointSize = 12;
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/*
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if ( registeredFontCount >= MAX_FONTS ) {
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common->Warning( "RegisterFont: Too many fonts registered already." );
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return false;
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}
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int pointSize = 12;
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idStr::snPrintf( name, sizeof(name), "%s/fontImage_%i.dat", fontName, pointSize );
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for ( i = 0; i < registeredFontCount; i++ ) {
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if ( idStr::Icmp(name, registeredFont[i].fontInfoSmall.name) == 0 ) {
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memcpy( &font, ®isteredFont[i], sizeof( fontInfoEx_t ) );
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return true;
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}
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}
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*/
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assert(sizeof(float) == 4 && "if this is false, readFloat() won't work");
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memset(&font, 0, sizeof(font));
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for (fontCount = 0; fontCount < 3; fontCount++) {
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if (fontCount == 0) {
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pointSize = 12;
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}
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else if (fontCount == 1) {
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pointSize = 24;
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}
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else {
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pointSize = 48;
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}
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// 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
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float glyphScale = 1.0f; // change the scale to be relative to 1 based on 72 dpi ( so dpi of 144 means a scale of .5 )
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glyphScale *= 48.0f / pointSize;
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idStr::snPrintf(name, sizeof(name), "%s/fontImage_%i.dat", fontName, pointSize);
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fontInfo_t* outFont;
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if (fontCount == 0) {
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outFont = &font.fontInfoSmall;
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}
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else if (fontCount == 1) {
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outFont = &font.fontInfoMedium;
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}
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else {
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outFont = &font.fontInfoLarge;
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}
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idStr::Copynz(outFont->name, name, sizeof(outFont->name));
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len = fileSystem->ReadFile(name, NULL, &ftime);
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if (len != FILESIZE_fontInfo_t) {
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common->Warning("RegisterFont: couldn't find font: '%s'", name);
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return false;
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}
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fileSystem->ReadFile(name, &faceData, &ftime);
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fdOffset = 0;
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fdFile = reinterpret_cast<unsigned char*>(faceData);
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for (i = 0; i < GLYPHS_PER_FONT; i++) {
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||||
outFont->glyphs[i].height = readInt();
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outFont->glyphs[i].top = readInt();
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||||
outFont->glyphs[i].bottom = readInt();
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||||
outFont->glyphs[i].pitch = readInt();
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||||
outFont->glyphs[i].xSkip = readInt();
|
||||
outFont->glyphs[i].imageWidth = readInt();
|
||||
outFont->glyphs[i].imageHeight = readInt();
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outFont->glyphs[i].s = readFloat();
|
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outFont->glyphs[i].t = readFloat();
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||||
outFont->glyphs[i].s2 = readFloat();
|
||||
outFont->glyphs[i].t2 = readFloat();
|
||||
/* font.glyphs[i].glyph = */ readInt();
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||||
//FIXME: the +6, -6 skips the embedded fonts/
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||||
memcpy(outFont->glyphs[i].shaderName, &fdFile[fdOffset + 6], 32 - 6);
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||||
fdOffset += 32;
|
||||
}
|
||||
outFont->glyphScale = readFloat();
|
||||
|
||||
int mw = 0;
|
||||
int mh = 0;
|
||||
for (i = GLYPH_START; i < GLYPH_END; i++) {
|
||||
idStr::snPrintf(name, sizeof(name), "%s/%s", fontName, outFont->glyphs[i].shaderName);
|
||||
outFont->glyphs[i].glyph = declManager->FindMaterial(name);
|
||||
outFont->glyphs[i].glyph->SetSort(SS_GUI);
|
||||
if (mh < outFont->glyphs[i].height) {
|
||||
mh = outFont->glyphs[i].height;
|
||||
}
|
||||
if (mw < outFont->glyphs[i].xSkip) {
|
||||
mw = outFont->glyphs[i].xSkip;
|
||||
}
|
||||
}
|
||||
if (fontCount == 0) {
|
||||
font.maxWidthSmall = mw;
|
||||
font.maxHeightSmall = mh;
|
||||
}
|
||||
else if (fontCount == 1) {
|
||||
font.maxWidthMedium = mw;
|
||||
font.maxHeightMedium = mh;
|
||||
}
|
||||
else {
|
||||
font.maxWidthLarge = mw;
|
||||
font.maxHeightLarge = mh;
|
||||
}
|
||||
fileSystem->FreeFile(faceData);
|
||||
}
|
||||
|
||||
//memcpy( ®isteredFont[registeredFontCount++], &font, sizeof( fontInfoEx_t ) );
|
||||
|
||||
return true;
|
||||
|
||||
#ifndef BUILD_FREETYPE
|
||||
common->Warning("RegisterFont: couldn't load FreeType code %s", name);
|
||||
#else
|
||||
|
||||
if (ftLibrary == NULL) {
|
||||
common->Warning("RegisterFont: FreeType not initialized.");
|
||||
return;
|
||||
}
|
||||
|
||||
len = fileSystem->ReadFile(fontName, &faceData, &ftime);
|
||||
if (len <= 0) {
|
||||
common->Warning("RegisterFont: Unable to read font file");
|
||||
return;
|
||||
}
|
||||
|
||||
// allocate on the stack first in case we fail
|
||||
if (FT_New_Memory_Face(ftLibrary, faceData, len, 0, &face)) {
|
||||
common->Warning("RegisterFont: FreeType2, unable to allocate new face.");
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
if (FT_Set_Char_Size(face, pointSize << 6, pointSize << 6, dpi, dpi)) {
|
||||
common->Warning("RegisterFont: FreeType2, Unable to set face char size.");
|
||||
return;
|
||||
}
|
||||
|
||||
// font = registeredFonts[registeredFontCount++];
|
||||
|
||||
// make a 256x256 image buffer, once it is full, register it, clean it and keep going
|
||||
// until all glyphs are rendered
|
||||
|
||||
out = Mem_Alloc(1024 * 1024);
|
||||
if (out == NULL) {
|
||||
common->Warning("RegisterFont: Mem_Alloc failure during output image creation.");
|
||||
return;
|
||||
}
|
||||
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 = Mem_Alloc(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);
|
||||
}
|
||||
|
||||
idStr::snprintf(name, sizeof(name), "fonts/fontImage_%i_%i.tga", imageNumber++, pointSize);
|
||||
if (r_saveFontData->integer) {
|
||||
R_WriteTGA(name, imageBuff, 256, 256);
|
||||
}
|
||||
|
||||
//idStr::snprintf( 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;
|
||||
idStr::Copynz(font.glyphs[j].shaderName, name, sizeof(font.glyphs[j].shaderName));
|
||||
}
|
||||
lastStart = i;
|
||||
memset(out, 0, 1024 * 1024);
|
||||
xOut = 0;
|
||||
yOut = 0;
|
||||
Mem_Free(imageBuff);
|
||||
i++;
|
||||
}
|
||||
else {
|
||||
memcpy(&font.glyphs[i], glyph, sizeof(glyphInfo_t));
|
||||
i++;
|
||||
}
|
||||
}
|
||||
|
||||
registeredFont[registeredFontCount].glyphScale = glyphScale;
|
||||
font.glyphScale = glyphScale;
|
||||
memcpy(®isteredFont[registeredFontCount++], &font, sizeof(fontInfo_t));
|
||||
|
||||
if (r_saveFontData->integer) {
|
||||
common->Warning("FIXME: font saving doesnt respect alignment!");
|
||||
fileSystem->WriteFile(va("fonts/fontImage_%i.dat", pointSize), &font, sizeof(fontInfo_t));
|
||||
}
|
||||
|
||||
Mem_Free(out);
|
||||
|
||||
fileSystem->FreeFile(faceData);
|
||||
#endif
|
||||
return true;
|
||||
}
|
||||
|
||||
/*
|
||||
============
|
||||
R_InitFreeType
|
||||
============
|
||||
*/
|
||||
void R_InitFreeType(void) {
|
||||
#ifdef BUILD_FREETYPE
|
||||
if (FT_Init_FreeType(&ftLibrary)) {
|
||||
common->Printf("R_InitFreeType: Unable to initialize FreeType.\n");
|
||||
}
|
||||
#endif
|
||||
// registeredFontCount = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
============
|
||||
R_DoneFreeType
|
||||
============
|
||||
*/
|
||||
void R_DoneFreeType(void) {
|
||||
#ifdef BUILD_FREETYPE
|
||||
if (ftLibrary) {
|
||||
FT_Done_FreeType(ftLibrary);
|
||||
ftLibrary = NULL;
|
||||
}
|
||||
#endif
|
||||
// registeredFontCount = 0;
|
||||
}
|
||||
Reference in New Issue
Block a user