1127 lines
27 KiB
C
1127 lines
27 KiB
C
#include "quakedef.h"
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#ifndef SERVERONLY
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#include "shader.h"
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#ifdef _WIN32
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#include <windows.h>
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#endif
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void Font_Init(void);
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void Font_Shutdown(void);
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struct font_s *Font_LoadFont(int height, char *fontfilename);
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void Font_Free(struct font_s *f);
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void Font_BeginString(struct font_s *font, int vx, int vy, int *px, int *py);
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int Font_CharHeight(void);
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int Font_CharWidth(unsigned int charcode);
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int Font_CharEndCoord(int x, unsigned int charcode);
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int Font_DrawChar(int px, int py, unsigned int charcode);
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void Font_EndString(struct font_s *font);
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int Font_LineBreaks(conchar_t *start, conchar_t *end, int maxpixelwidth, int maxlines, conchar_t **starts, conchar_t **ends);
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struct font_s *font_conchar;
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struct font_s *font_tiny;
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#ifdef AVAIL_FREETYPE
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#include <ft2build.h>
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#include FT_FREETYPE_H
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static FT_Library fontlib;
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qboolean triedtoloadfreetype;
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dllhandle_t *fontmodule;
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FT_Error (VARGS *pFT_Init_FreeType) (FT_Library *alibrary);
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FT_Error (VARGS *pFT_Load_Char) (FT_Face face, FT_ULong char_code, FT_Int32 load_flags);
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FT_Error (VARGS *pFT_Set_Pixel_Sizes) (FT_Face face, FT_UInt pixel_width, FT_UInt pixel_height);
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FT_Error (VARGS *pFT_New_Face) (FT_Library library, const char *pathname, FT_Long face_index, FT_Face *aface);
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FT_Error (VARGS *pFT_Done_Face) (FT_Face face);
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#endif
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static const char *imgs[] =
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{
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//0xe10X
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"e100","e101",
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"inv_shotgun",
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"inv_sshotgun",
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"inv_nailgun",
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"inv_snailgun",
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"inv_rlaunch",
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"inv_srlaunch",
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"inv_lightng", //8
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"e109","e10a","e10b","e10c","e10d","e10e","e10f",
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//0xe11X
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"e110","e111",
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"inv2_shotgun",
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"inv2_sshotgun",
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"inv2_nailgun",
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"inv2_snailgun",
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"inv2_rlaunch",
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"inv2_srlaunch",
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"inv2_lightng",
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"e119","e11a","e11b","e11c","e11d","e11e","e11f",
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//0xe12X
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"sb_shells",
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"sb_nails",
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"sb_rocket",
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"sb_cells",
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"sb_armor1",
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"sb_armor2",
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"sb_armor3",
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"e127","e128","e129","e12a","e12b","e12c","e12d","e12e","e12f",
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//0xe13X
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"sb_key1",
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"sb_key2",
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"sb_invis",
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"sb_invuln",
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"sb_suit",
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"sb_quad",
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"sb_sigil1",
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"sb_sigil2",
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"sb_sigil3",
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"sb_sigil4",
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"e13a","e13b","e13c","e13d","e13e","e13f",
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//0xe14X
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"face1",
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"face_p1",
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"face2",
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"face_p2",
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"face3",
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"face_p3",
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"face4",
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"face_p4",
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"face5",
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"face_p5",
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"face_invis",
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"face_invul2",
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"face_inv2",
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"face_quad",
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"e14e",
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"e14f",
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//0xe15X
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"e150",
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"e151",
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"e152",
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"e153",
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"e154",
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"e155",
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"e156",
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"e157",
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"e158",
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"e159",
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"e15a",
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"e15b",
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"e15c",
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"e15d",
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"e15e",
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"e15f",
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//0xe16X
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"e160",
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"e161",
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"e162",
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"e163",
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"e164",
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"e165",
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"e166",
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"e167",
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"e168",
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"e169",
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"e16a",
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"e16b",
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"e16c",
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"e16d",
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"e16e",
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"e16f"
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};
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#define FONTCHARS (1<<16)
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#define FONTPLANES (1<<2) //no more than 16 textures per font
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#define PLANEIDXTYPE unsigned short
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#define CHARIDXTYPE unsigned short
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#define INVALIDPLANE ((1<<(8*sizeof(PLANEIDXTYPE)))-1)
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#define BITMAPPLANE ((1<<(8*sizeof(PLANEIDXTYPE)))-2)
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#define DEFAULTPLANE ((1<<(8*sizeof(PLANEIDXTYPE)))-3)
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#define PLANEWIDTH (1<<8)
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#define PLANEHEIGHT PLANEWIDTH
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#define GEN_CONCHAR_GLYPHS 0 //set to 0 or 1 to define whether to generate glyphs from conchars too, or if it should just draw them as glquake always used to
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extern cvar_t cl_noblink;
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extern cvar_t gl_smoothfont;
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extern cvar_t con_ocranaleds;
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typedef struct font_s
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{
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struct charcache_s
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{
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struct charcache_s *nextchar;
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PLANEIDXTYPE texplane;
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unsigned char advance; //how wide this char is, when drawn
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char pad;
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unsigned char bmx;
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unsigned char bmy;
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unsigned char bmw;
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unsigned char bmh;
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short top;
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short left;
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} chars[FONTCHARS];
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short charheight;
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texid_t singletexture;
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#ifdef AVAIL_FREETYPE
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FT_Face face;
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#endif
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} font_t;
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typedef struct {
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texid_t texnum[FONTPLANES];
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texid_t defaultfont;
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unsigned char plane[PLANEWIDTH*PLANEHEIGHT][4]; //tracks the current plane
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PLANEIDXTYPE activeplane;
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unsigned char planerowx;
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unsigned char planerowy;
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unsigned char planerowh;
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qboolean planechanged;
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struct charcache_s *oldestchar;
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struct charcache_s *newestchar;
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shader_t *shader;
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shader_t *backshader;
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} fontplanes_t;
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static fontplanes_t fontplanes;
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#define FONT_CHAR_BUFFER 64
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static index_t font_indicies[FONT_CHAR_BUFFER*6];
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static vecV_t font_coord[FONT_CHAR_BUFFER*4];
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static vec2_t font_texcoord[FONT_CHAR_BUFFER*4];
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static vbo_t font_buffer;
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static mesh_t font_mesh;
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static texid_t font_texture;
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static int font_colourmask;
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static struct font_s *curfont;
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//called at load time - initalises font buffers
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void Font_Init(void)
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{
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int i;
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fontplanes.defaultfont = r_nulltex;
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font_buffer.indicies = font_indicies;
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font_buffer.coord = font_coord;
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font_buffer.texcoord = font_texcoord;
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font_mesh.indexes = font_buffer.indicies;
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font_mesh.xyz_array = font_buffer.coord;
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font_mesh.st_array = font_buffer.texcoord;
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for (i = 0; i < FONT_CHAR_BUFFER; i++)
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{
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font_indicies[i*6+0] = i*4+0;
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font_indicies[i*6+1] = i*4+1;
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font_indicies[i*6+2] = i*4+2;
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font_indicies[i*6+3] = i*4+0;
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font_indicies[i*6+4] = i*4+2;
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font_indicies[i*6+5] = i*4+3;
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}
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for (i = 0; i < FONTPLANES; i++)
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{
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fontplanes.texnum[i] = R_AllocNewTexture(PLANEWIDTH, PLANEHEIGHT);
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}
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fontplanes.shader = R_RegisterShader("ftefont",
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"{\n"
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"{\n"
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"map $diffuse\n"
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"rgbgen const\n"
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"alphagen const\n"
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"blendfunc blend\n"
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"}\n"
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"}\n"
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);
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fontplanes.backshader = R_RegisterShader("ftefontback",
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"{\n"
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"{\n"
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"map $whiteimage\n"
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"rgbgen const\n"
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"alphagen const\n"
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"blendfunc blend\n"
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"}\n"
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"}\n"
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);
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font_colourmask = ~0;
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}
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//flush the font buffer, by drawing it to the screen
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static void Font_Flush(void)
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{
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if (!font_mesh.numindexes)
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return;
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if (fontplanes.planechanged)
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{
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R_Upload(fontplanes.texnum[fontplanes.activeplane], NULL, TF_RGBA32, (void*)fontplanes.plane, PLANEWIDTH, PLANEHEIGHT, IF_NOPICMIP|IF_NOMIPMAP|IF_NOGAMMA);
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fontplanes.planechanged = false;
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}
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font_mesh.istrifan = (font_mesh.numvertexes == 4);
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if (font_colourmask & CON_NONCLEARBG)
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{
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fontplanes.backshader->defaulttextures.base = r_nulltex;
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BE_DrawMeshChain(fontplanes.backshader, &font_mesh, NULL, &fontplanes.backshader->defaulttextures);
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fontplanes.shader->defaulttextures.base = font_texture;
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BE_DrawMeshChain(fontplanes.shader, &font_mesh, NULL, &fontplanes.shader->defaulttextures);
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}
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else
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{
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fontplanes.shader->defaulttextures.base = font_texture;
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BE_DrawMeshChain(fontplanes.shader, &font_mesh, NULL, &fontplanes.shader->defaulttextures);
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}
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font_mesh.numindexes = 0;
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font_mesh.numvertexes = 0;
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}
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static int Font_BeginChar(texid_t tex)
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{
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int fvert;
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if (font_mesh.numindexes == FONT_CHAR_BUFFER*6 || memcmp(&font_texture,&tex, sizeof(texid_t)))
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{
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Font_Flush();
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font_texture = tex;
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}
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fvert = font_mesh.numvertexes;
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font_mesh.numindexes += 6;
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font_mesh.numvertexes += 4;
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return fvert;
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}
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//clear the shared planes and free memory etc
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void Font_Shutdown(void)
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{
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int i;
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for (i = 0; i < FONTPLANES; i++)
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fontplanes.texnum[i] = r_nulltex;
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fontplanes.activeplane = 0;
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fontplanes.oldestchar = NULL;
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fontplanes.newestchar = NULL;
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fontplanes.planechanged = 0;
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fontplanes.planerowx = 0;
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fontplanes.planerowy = 0;
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fontplanes.planerowh = 0;
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}
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//we got too many chars and switched to a new plane - purge the chars in that plane
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void Font_FlushPlane(font_t *f)
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{
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/*
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assumption:
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oldest chars must be of the oldest plane
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*/
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//we've not broken anything yet, flush while we can
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Font_Flush();
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fontplanes.activeplane++;
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fontplanes.activeplane = fontplanes.activeplane % FONTPLANES;
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fontplanes.planerowh = 0;
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fontplanes.planerowx = 0;
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fontplanes.planerowy = 0;
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for (; fontplanes.oldestchar; fontplanes.oldestchar = fontplanes.oldestchar->nextchar)
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{
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if (fontplanes.oldestchar->texplane != fontplanes.activeplane)
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break;
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//invalidate it
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fontplanes.oldestchar->texplane = INVALIDPLANE;
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}
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if (!fontplanes.oldestchar)
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fontplanes.newestchar = NULL;
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}
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//obtains a cached char, null if not cached
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static struct charcache_s *Font_GetChar(font_t *f, CHARIDXTYPE charidx)
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{
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struct charcache_s *c = &f->chars[charidx];
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if (c->texplane == INVALIDPLANE)
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{
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//not cached, can't get.
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return NULL;
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}
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return c;
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}
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//loads a new image into a given character slot for the given font.
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//note: make sure it doesn't already exist or things will get cyclic
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//alphaonly says if its a greyscale image. false means rgba.
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static struct charcache_s *Font_LoadGlyphData(font_t *f, CHARIDXTYPE charidx, int alphaonly, void *data, unsigned int bmw, unsigned int bmh, unsigned int pitch)
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{
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int x, y;
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unsigned char *out;
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struct charcache_s *c = &f->chars[charidx];
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if (fontplanes.planerowx + (int)bmw >= PLANEWIDTH)
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{
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fontplanes.planerowx = 0;
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fontplanes.planerowy += fontplanes.planerowh;
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fontplanes.planerowh = 0;
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}
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if (fontplanes.planerowy+(int)bmh >= PLANEHEIGHT)
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Font_FlushPlane(f);
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if (fontplanes.newestchar)
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fontplanes.newestchar->nextchar = c;
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else
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fontplanes.oldestchar = c;
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fontplanes.newestchar = c;
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c->nextchar = NULL;
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c->texplane = fontplanes.activeplane;
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c->bmx = fontplanes.planerowx;
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c->bmy = fontplanes.planerowy;
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c->bmw = bmw;
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c->bmh = bmh;
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if (fontplanes.planerowh < (int)bmh)
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fontplanes.planerowh = bmh;
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fontplanes.planerowx += bmw;
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out = (unsigned char *)&fontplanes.plane[c->bmx+(int)c->bmy*PLANEHEIGHT];
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if (alphaonly)
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{
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for (y = 0; y < bmh; y++)
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{
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for (x = 0; x < bmw; x++)
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{
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*(unsigned int *)&out[x*4] = 0xffffffff;
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out[x*4+3] = ((unsigned char*)data)[x];
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}
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data = (char*)data + pitch;
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out += PLANEWIDTH*4;
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}
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}
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else
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{
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pitch*=4;
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for (y = 0; y < bmh; y++)
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{
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for (x = 0; x < bmw; x++)
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{
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((unsigned int*)out)[x] = ((unsigned int*)data)[x];
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}
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data = (char*)data + pitch;
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out += PLANEWIDTH*4;
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}
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}
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fontplanes.planechanged = true;
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return c;
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}
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//loads the given charidx for the given font, importing from elsewhere if needed.
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static struct charcache_s *Font_TryLoadGlyph(font_t *f, CHARIDXTYPE charidx)
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{
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struct charcache_s *c;
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#if GEN_CONCHAR_GLYPHS != 0
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if (charidx >= 0xe000 && charidx <= 0xe0ff && draw_chars)
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{
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int cpos = charidx & 0xff;
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unsigned int img[64*64], *d;
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unsigned char *s;
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int scale;
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int x,y, ys;
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if (draw_chars)
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{
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d = img;
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s = draw_chars + 8*(cpos&15)+128*8*(cpos/16);
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scale = f->charheight/8;
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if (scale < 1)
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scale = 1;
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if (scale > 64/8)
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scale = 64/8;
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for (y = 0; y < 8; y++)
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{
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for (ys = 0; ys < scale; ys++)
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{
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for (x = 0; x < 8*scale; x++)
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d[x] = d_8to24rgbtable[s[x/scale]];
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d+=8*scale;
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}
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s+=128;
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}
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c = Font_LoadGlyphData(f, charidx, false, img, 8*scale, 8*scale, 8*scale);
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if (c)
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{
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c->advance = 8*scale;
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c->left = 0;
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c->top = 7*scale;
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}
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return c;
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}
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charidx &= 0x7f;
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}
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#endif
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if (charidx >= 0xe100 && charidx <= 0xe1ff)
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{
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qpic_t *wadimg;
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unsigned char *src;
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unsigned int img[64*64];
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int nw, nh;
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int x, y;
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unsigned int stepx, stepy;
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unsigned int srcx, srcy;
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if (charidx-0xe100 >= sizeof(imgs)/sizeof(imgs[0]))
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wadimg = NULL;
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else
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wadimg = W_SafeGetLumpName(imgs[charidx-0xe100]);
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if (wadimg)
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{
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nh = wadimg->height;
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nw = wadimg->width;
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while (nh < f->charheight)
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{
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nh *= 2;
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nw *= 2;
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}
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if (nh > f->charheight)
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{
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nw = (nw * f->charheight)/nh;
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nh = f->charheight;
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}
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stepy = 0x10000*((float)wadimg->height/nh);
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stepx = 0x10000*((float)wadimg->width/nw);
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if (nh > 64)
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nh = 64;
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if (nw > 64)
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nw = 64;
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srcy = 0;
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for (y = 0; y < nh; y++)
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{
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src = (unsigned char *)(wadimg->data);
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src += wadimg->width * (srcy>>16);
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srcy += stepy;
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srcx = 0;
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for (x = 0; x < nw; x++)
|
|
{
|
|
img[x+y*64] = d_8to24rgbtable[src[srcx>>16]];
|
|
srcx += stepx;
|
|
}
|
|
}
|
|
|
|
c = Font_LoadGlyphData(f, charidx, false, img, nw, nh, 64);
|
|
if (c)
|
|
{
|
|
c->left = 0;
|
|
c->top = f->charheight - nh;
|
|
c->advance = nw;
|
|
return c;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef AVAIL_FREETYPE
|
|
if (f->face)
|
|
{
|
|
if (pFT_Load_Char(f->face, charidx, FT_LOAD_RENDER) == 0)
|
|
{
|
|
FT_GlyphSlot slot;
|
|
FT_Bitmap *bm;
|
|
|
|
slot = f->face->glyph;
|
|
bm = &slot->bitmap;
|
|
c = Font_LoadGlyphData(f, charidx, true, bm->buffer, bm->width, bm->rows, bm->pitch);
|
|
|
|
if (c)
|
|
{
|
|
c->advance = slot->advance.x >> 6;
|
|
c->left = slot->bitmap_left;
|
|
c->top = f->charheight*3/4 - slot->bitmap_top;
|
|
return c;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
qboolean Font_LoadFreeTypeFont(struct font_s *f, int height, char *fontfilename)
|
|
{
|
|
#ifdef AVAIL_FREETYPE
|
|
FT_Face face;
|
|
int error;
|
|
if (!fontlib)
|
|
{
|
|
dllfunction_t ft2funcs[] =
|
|
{
|
|
{(void**)&pFT_Init_FreeType, "FT_Init_FreeType"},
|
|
{(void**)&pFT_Load_Char, "FT_Load_Char"},
|
|
{(void**)&pFT_Set_Pixel_Sizes, "FT_Set_Pixel_Sizes"},
|
|
{(void**)&pFT_New_Face, "FT_New_Face"},
|
|
{(void**)&pFT_Init_FreeType, "FT_Init_FreeType"},
|
|
{(void**)&pFT_Done_Face, "FT_Done_Face"},
|
|
{NULL, NULL}
|
|
};
|
|
if (triedtoloadfreetype)
|
|
return false;
|
|
triedtoloadfreetype = true;
|
|
|
|
fontmodule = Sys_LoadLibrary("freetype6", ft2funcs);
|
|
if (!fontmodule)
|
|
return false;
|
|
error = pFT_Init_FreeType(&fontlib);
|
|
if (error)
|
|
{
|
|
Sys_CloseLibrary(fontmodule);
|
|
return false;
|
|
}
|
|
/*any other errors leave freetype open*/
|
|
}
|
|
|
|
//fixme: use FT_Open_Face eventually
|
|
error = pFT_New_Face(fontlib, fontfilename, 0, &face);
|
|
#ifdef _WIN32
|
|
if (error)
|
|
{
|
|
char fontdir[MAX_OSPATH];
|
|
HMODULE shfolder = LoadLibrary("shfolder.dll");
|
|
DWORD winver = (DWORD)LOBYTE(LOWORD(GetVersion()));
|
|
|
|
if (shfolder)
|
|
{
|
|
HRESULT (WINAPI *dSHGetFolderPath) (HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPTSTR pszPath);
|
|
dSHGetFolderPath = (void *)GetProcAddress(shfolder, "SHGetFolderPathA");
|
|
if (dSHGetFolderPath)
|
|
{
|
|
// 0x14 == CSIDL_FONTS
|
|
if (dSHGetFolderPath(NULL, 0x14, NULL, 0, fontdir) == S_OK)
|
|
{
|
|
error = pFT_New_Face(fontlib, va("%s/%s.ttf", fontdir, fontfilename), 0, &face);
|
|
if (error)
|
|
error = pFT_New_Face(fontlib, va("%s/%s", fontdir, fontfilename), 0, &face);
|
|
}
|
|
}
|
|
FreeLibrary(shfolder);
|
|
}
|
|
}
|
|
#endif
|
|
if (error)
|
|
return false;
|
|
|
|
error = pFT_Set_Pixel_Sizes(face, 0, height);
|
|
if (error)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
f->face = face;
|
|
return true;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
static texid_t Font_LoadReplacementConchars(void)
|
|
{
|
|
texid_t tex;
|
|
//q1 replacement
|
|
tex = R_LoadReplacementTexture("gfx/conchars.lmp", NULL, IF_NOMIPMAP|IF_NOGAMMA);
|
|
if (TEXVALID(tex))
|
|
return tex;
|
|
//q2
|
|
tex = R_LoadHiResTexture("pics/conchars.pcx", NULL, IF_NOMIPMAP|IF_NOGAMMA);
|
|
if (TEXVALID(tex))
|
|
return tex;
|
|
//q3
|
|
tex = R_LoadHiResTexture("gfx/2d/bigchars.tga", NULL, IF_NOMIPMAP|IF_NOGAMMA);
|
|
if (TEXVALID(tex))
|
|
return tex;
|
|
return r_nulltex;
|
|
}
|
|
static texid_t Font_LoadQuakeConchars(void)
|
|
{
|
|
unsigned int i;
|
|
qbyte *lump;
|
|
lump = W_SafeGetLumpName ("conchars");
|
|
if (lump)
|
|
{
|
|
// add ocrana leds
|
|
if (con_ocranaleds.ival)
|
|
{
|
|
if (con_ocranaleds.ival != 2 || QCRC_Block(lump, 128*128) == 798)
|
|
AddOcranaLEDsIndexed (lump, 128, 128);
|
|
}
|
|
|
|
for (i=0 ; i<128*128 ; i++)
|
|
if (lump[i] == 0)
|
|
lump[i] = 255; // proper transparent color
|
|
|
|
return R_LoadTexture8("charset", 128, 128, (void*)lump, IF_NOMIPMAP|IF_NOGAMMA, 1);
|
|
}
|
|
return r_nulltex;
|
|
}
|
|
|
|
static texid_t Font_LoadHexen2Conchars(void)
|
|
{
|
|
//gulp... so it's come to this has it? rework the hexen2 conchars into the q1 system.
|
|
texid_t tex;
|
|
unsigned int i, x;
|
|
unsigned char *tempchars;
|
|
unsigned char *in, *out, *outbuf;
|
|
FS_LoadFile("gfx/menu/conchars.lmp", (void**)&tempchars);
|
|
if (tempchars)
|
|
{
|
|
outbuf = BZ_Malloc(8*8*256*8);
|
|
|
|
out = outbuf;
|
|
for (i = 0; i < 8*8; i+=1)
|
|
{
|
|
if ((i/8)&1)
|
|
{
|
|
in = tempchars + ((i)/8)*16*8*8+(i&7)*32*8 - 256*4+128;
|
|
for (x = 0; x < 16*8; x++)
|
|
*out++ = *in++;
|
|
}
|
|
else
|
|
{
|
|
in = tempchars + (i/8)*16*8*8+(i&7)*32*8;
|
|
for (x = 0; x < 16*8; x++)
|
|
*out++ = *in++;
|
|
}
|
|
}
|
|
for (i = 0; i < 8*8; i+=1)
|
|
{
|
|
if ((i/8)&1)
|
|
{
|
|
in = tempchars+128*128 + ((i)/8)*16*8*8+(i&7)*32*8 - 256*4+128;
|
|
for (x = 0; x < 16*8; x++)
|
|
*out++ = *in++;
|
|
}
|
|
else
|
|
{
|
|
in = tempchars+128*128 + (i/8)*16*8*8+(i&7)*32*8;
|
|
for (x = 0; x < 16*8; x++)
|
|
*out++ = *in++;
|
|
}
|
|
}
|
|
FS_FreeFile(tempchars);
|
|
|
|
// add ocrana leds
|
|
if (con_ocranaleds.value && con_ocranaleds.value != 2)
|
|
AddOcranaLEDsIndexed (outbuf, 128, 128);
|
|
|
|
for (i=0 ; i<128*128 ; i++)
|
|
if (outbuf[i] == 0)
|
|
outbuf[i] = 255; // proper transparent color
|
|
tex = R_LoadTexture8 ("charset", 128, 128, outbuf, IF_NOMIPMAP|IF_NOGAMMA, 1);
|
|
Z_Free(outbuf);
|
|
return tex;
|
|
}
|
|
return r_nulltex;
|
|
}
|
|
|
|
static texid_t Font_LoadFallbackConchars(void)
|
|
{
|
|
texid_t tex;
|
|
extern qbyte default_conchar[11356];
|
|
int width, height;
|
|
unsigned int i;
|
|
qbyte *lump;
|
|
lump = ReadTargaFile(default_conchar, sizeof(default_conchar), &width, &height, false);
|
|
if (!lump)
|
|
Sys_Error("Corrupt internal drawchars");
|
|
/*convert greyscale to alpha*/
|
|
for (i = 0; i < width*height; i++)
|
|
{
|
|
lump[i*4+3] = lump[i*4];
|
|
lump[i*4+0] = 255;
|
|
lump[i*4+1] = 255;
|
|
lump[i*4+2] = 255;
|
|
}
|
|
tex = R_LoadTexture32("charset", width, height, (void*)lump, IF_NOMIPMAP|IF_NOGAMMA);
|
|
BZ_Free(lump);
|
|
return tex;
|
|
}
|
|
|
|
/*loads a fallback image. not allowed to fail (use syserror if needed)*/
|
|
static texid_t Font_LoadDefaultConchars(void)
|
|
{
|
|
texid_t tex;
|
|
tex = Font_LoadReplacementConchars();
|
|
if (TEXVALID(tex))
|
|
return tex;
|
|
tex = Font_LoadQuakeConchars();
|
|
if (TEXVALID(tex))
|
|
return tex;
|
|
tex = Font_LoadHexen2Conchars();
|
|
if (TEXVALID(tex))
|
|
return tex;
|
|
tex = Font_LoadFallbackConchars();
|
|
if (TEXVALID(tex))
|
|
return tex;
|
|
Sys_Error("Unable to load any conchars\n");
|
|
}
|
|
|
|
//creates a new font object from the given file, with each text row with the given height.
|
|
//width is implicit and scales with height and choice of font.
|
|
struct font_s *Font_LoadFont(int height, char *fontfilename)
|
|
{
|
|
struct font_s *f;
|
|
int i = 0;
|
|
|
|
f = Z_Malloc(sizeof(*f));
|
|
f->charheight = height;
|
|
|
|
if (!Font_LoadFreeTypeFont(f, height, fontfilename))
|
|
{
|
|
if (*fontfilename)
|
|
f->singletexture = R_LoadHiResTexture(fontfilename, "fonts", IF_NOMIPMAP);
|
|
|
|
/*force it to load, even if there's nothing there*/
|
|
for (; i < 256; i++)
|
|
{
|
|
f->chars[i].advance = f->charheight;
|
|
f->chars[i].bmh = PLANEWIDTH/16;
|
|
f->chars[i].bmw = PLANEWIDTH/16;
|
|
f->chars[i].bmx = (i&15)*(PLANEWIDTH/16);
|
|
f->chars[i].bmy = (i/16)*(PLANEWIDTH/16);
|
|
f->chars[i].left = 0;
|
|
f->chars[i].top = 0;
|
|
f->chars[i].nextchar = 0; //these chars are not linked in
|
|
f->chars[i].pad = 0;
|
|
f->chars[i].texplane = BITMAPPLANE;
|
|
}
|
|
}
|
|
|
|
if (!TEXVALID(f->singletexture))
|
|
{
|
|
if (!TEXVALID(f->singletexture) && !TEXVALID(fontplanes.defaultfont))
|
|
fontplanes.defaultfont = Font_LoadDefaultConchars();
|
|
|
|
f->singletexture = fontplanes.defaultfont;
|
|
}
|
|
|
|
for (; i < FONTCHARS; i++)
|
|
{
|
|
f->chars[i].texplane = INVALIDPLANE;
|
|
}
|
|
|
|
/*pack the default chars into it*/
|
|
for (i = 0xe000; i <= 0xe0ff; i++)
|
|
{
|
|
f->chars[i].advance = f->charheight;
|
|
f->chars[i].bmh = PLANEWIDTH/16;
|
|
f->chars[i].bmw = PLANEWIDTH/16;
|
|
f->chars[i].bmx = (i&15)*(PLANEWIDTH/16);
|
|
f->chars[i].bmy = (i/16)*(PLANEWIDTH/16);
|
|
f->chars[i].left = 0;
|
|
f->chars[i].top = 0;
|
|
f->chars[i].nextchar = 0; //these chars are not linked in
|
|
f->chars[i].pad = 0;
|
|
f->chars[i].texplane = BITMAPPLANE; /*if its a 'raster' font, don't use the default chars, always use the raster images*/
|
|
}
|
|
return f;
|
|
}
|
|
|
|
//removes a font from memory.
|
|
void Font_Free(struct font_s *f)
|
|
{
|
|
struct charcache_s **link;
|
|
for (link = &fontplanes.oldestchar; *link; )
|
|
{
|
|
if (*link >= f->chars && *link <= f->chars + FONTCHARS)
|
|
{
|
|
*link = (*link)->nextchar;
|
|
if (!*link)
|
|
fontplanes.newestchar = NULL;
|
|
}
|
|
else
|
|
link = &(*link)->nextchar;
|
|
}
|
|
|
|
#ifdef AVAIL_FREETYPE
|
|
if (f->face)
|
|
pFT_Done_Face(f->face);
|
|
#endif
|
|
free(f);
|
|
}
|
|
|
|
//maps a given virtual screen coord to a pixel coord, which matches the font's height/width values
|
|
void Font_BeginString(struct font_s *font, int vx, int vy, int *px, int *py)
|
|
{
|
|
curfont = font;
|
|
*px = (vx*vid.pixelwidth) / (float)vid.width;
|
|
*py = (vy*vid.pixelheight) / (float)vid.height;
|
|
}
|
|
|
|
void Font_EndString(struct font_s *font)
|
|
{
|
|
Font_Flush();
|
|
curfont = NULL;
|
|
}
|
|
|
|
//obtains the font's row height (each row of chars should be drawn using this increment)
|
|
int Font_CharHeight(void)
|
|
{
|
|
return curfont->charheight;
|
|
}
|
|
|
|
/*
|
|
This is where the character ends.
|
|
Note: this function supports tabs - x must always be based off 0, with Font_LineDraw actually used to draw the line.
|
|
*/
|
|
int Font_CharEndCoord(int x, unsigned int charcode)
|
|
{
|
|
struct charcache_s *c;
|
|
#define TABWIDTH (8*20)
|
|
if ((charcode&CON_CHARMASK) == '\t')
|
|
return x + ((TABWIDTH - (x % TABWIDTH)) % TABWIDTH);
|
|
|
|
c = Font_GetChar(curfont, (CHARIDXTYPE)(charcode&CON_CHARMASK));
|
|
if (!c)
|
|
{
|
|
c = Font_TryLoadGlyph(curfont, (CHARIDXTYPE)(charcode&CON_CHARMASK));
|
|
if (!c)
|
|
return x+0;
|
|
}
|
|
|
|
return x+c->advance;
|
|
}
|
|
|
|
//obtains the width of a character from a given font. This is how wide it is. The next char should be drawn at x + result.
|
|
int Font_CharWidth(unsigned int charcode)
|
|
{
|
|
struct charcache_s *c;
|
|
|
|
c = Font_GetChar(curfont, (CHARIDXTYPE)(charcode&CON_CHARMASK));
|
|
if (!c)
|
|
{
|
|
c = Font_TryLoadGlyph(curfont, (CHARIDXTYPE)(charcode&CON_CHARMASK));
|
|
if (!c)
|
|
return 0;
|
|
}
|
|
|
|
return c->advance;
|
|
}
|
|
|
|
//for a given font, calculate the line breaks and word wrapping for a block of text
|
|
//start+end are the input string
|
|
//starts+ends are an array of line start and end points, which have maxlines elements.
|
|
//(end is the terminator, null or otherwise)
|
|
//maxpixelwidth is the width of the display area in pixels
|
|
int Font_LineBreaks(conchar_t *start, conchar_t *end, int maxpixelwidth, int maxlines, conchar_t **starts, conchar_t **ends)
|
|
{
|
|
int l, bt;
|
|
int px;
|
|
int foundlines = 0;
|
|
|
|
while (start < end)
|
|
{
|
|
// scan the width of the line
|
|
for (px=0, l=0 ; px <= maxpixelwidth; )
|
|
{
|
|
if ((start[l]&CON_CHARMASK) == '\n' || (start+l >= end))
|
|
break;
|
|
l++;
|
|
px = Font_CharEndCoord(px, start[l]);
|
|
}
|
|
//if we did get to the end
|
|
if (px > maxpixelwidth)
|
|
{
|
|
bt = l;
|
|
//backtrack until we find a space
|
|
while(l > 0 && (start[l-1]&CON_CHARMASK)>' ')
|
|
{
|
|
l--;
|
|
}
|
|
if (l == 0 && bt>0)
|
|
l = bt-1;
|
|
}
|
|
|
|
starts[foundlines] = start;
|
|
ends[foundlines] = start+l;
|
|
foundlines++;
|
|
if (foundlines == maxlines)
|
|
break;
|
|
|
|
start+=l;
|
|
|
|
if ((*start&CON_CHARMASK) == '\n'||!l)
|
|
start++; // skip the \n
|
|
}
|
|
|
|
return foundlines;
|
|
}
|
|
|
|
int Font_LineWidth(conchar_t *start, conchar_t *end)
|
|
{
|
|
int x = 0;
|
|
for (; start < end; start++)
|
|
{
|
|
x = Font_CharEndCoord(x, *start);
|
|
}
|
|
return x;
|
|
}
|
|
void Font_LineDraw(int x, int y, conchar_t *start, conchar_t *end)
|
|
{
|
|
int lx = 0;
|
|
for (; start < end; start++)
|
|
{
|
|
Font_DrawChar(x+lx, y, *start);
|
|
lx = Font_CharEndCoord(lx, *start);
|
|
}
|
|
}
|
|
|
|
/*Note: *all* strings after the current one will inherit the same colour, until one changes it explicitly
|
|
correct usage of this function thus requires calling this with 1111 before Font_EndString*/
|
|
void Font_ForceColour(float r, float g, float b, float a)
|
|
{
|
|
Font_Flush();
|
|
font_colourmask = CON_WHITEMASK;
|
|
|
|
/*force the colour to the requested one*/
|
|
fontplanes.shader->passes[0].rgbgen_func.args[0] = r;
|
|
fontplanes.shader->passes[0].rgbgen_func.args[1] = g;
|
|
fontplanes.shader->passes[0].rgbgen_func.args[2] = b;
|
|
fontplanes.shader->passes[0].alphagen_func.args[0] = a;
|
|
|
|
/*no background*/
|
|
fontplanes.backshader->passes[0].alphagen_func.args[0] = 0;
|
|
|
|
/*Any drawchars that are now drawn will get the forced colour*/
|
|
}
|
|
void Font_InvalidateColour(void)
|
|
{
|
|
Font_Flush();
|
|
font_colourmask = ~0;
|
|
}
|
|
|
|
void GLDraw_FillRGB (int x, int y, int w, int h, float r, float g, float b);
|
|
|
|
//draw a character from the current font at a pixel location.
|
|
int Font_DrawChar(int px, int py, unsigned int charcode)
|
|
{
|
|
struct charcache_s *c;
|
|
float s0, s1;
|
|
float t0, t1;
|
|
float nextx;
|
|
float sx, sy, sw, sh;
|
|
int col;
|
|
int v;
|
|
|
|
//crash if there is no current font.
|
|
c = Font_GetChar(curfont, (CHARIDXTYPE)(charcode&CON_CHARMASK));
|
|
if (!c)
|
|
{
|
|
c = Font_TryLoadGlyph(curfont, (CHARIDXTYPE)(charcode&CON_CHARMASK));
|
|
if (!c)
|
|
return px;
|
|
}
|
|
|
|
nextx = px + c->advance;
|
|
|
|
if ((charcode & CON_CHARMASK) == ' ')
|
|
return nextx;
|
|
|
|
if (charcode & CON_BLINKTEXT)
|
|
{
|
|
if (!cl_noblink.ival)
|
|
if ((int)(realtime*3) & 1)
|
|
return nextx;
|
|
}
|
|
|
|
col = charcode & (CON_NONCLEARBG|CON_BGMASK|CON_FGMASK|CON_HALFALPHA);
|
|
if (col != font_colourmask)
|
|
{
|
|
Font_Flush();
|
|
font_colourmask = col;
|
|
|
|
col = (charcode&CON_FGMASK)>>CON_FGSHIFT;
|
|
fontplanes.shader->passes[0].rgbgen_func.args[0] = consolecolours[col].fr;
|
|
fontplanes.shader->passes[0].rgbgen_func.args[1] = consolecolours[col].fg;
|
|
fontplanes.shader->passes[0].rgbgen_func.args[2] = consolecolours[col].fb;
|
|
fontplanes.shader->passes[0].alphagen_func.args[0] = (charcode & CON_HALFALPHA)?0.5:1;
|
|
|
|
col = (charcode&CON_BGMASK)>>CON_BGSHIFT;
|
|
fontplanes.backshader->passes[0].rgbgen_func.args[0] = consolecolours[col].fr;
|
|
fontplanes.backshader->passes[0].rgbgen_func.args[1] = consolecolours[col].fg;
|
|
fontplanes.backshader->passes[0].rgbgen_func.args[2] = consolecolours[col].fb;
|
|
fontplanes.backshader->passes[0].alphagen_func.args[0] = (charcode & CON_NONCLEARBG)?0.5:0;
|
|
}
|
|
|
|
s0 = (float)c->bmx/PLANEWIDTH;
|
|
t0 = (float)c->bmy/PLANEWIDTH;
|
|
s1 = (float)(c->bmx+c->bmw)/PLANEWIDTH;
|
|
t1 = (float)(c->bmy+c->bmh)/PLANEWIDTH;
|
|
|
|
if (c->texplane >= DEFAULTPLANE)
|
|
{
|
|
sx = ((px+c->left)*(int)vid.width) / (float)vid.pixelwidth;
|
|
sy = ((py+c->top)*(int)vid.height) / (float)vid.pixelheight;
|
|
sw = ((curfont->charheight)*vid.width) / (float)vid.pixelwidth;
|
|
sh = ((curfont->charheight)*vid.height) / (float)vid.pixelheight;
|
|
|
|
if (c->texplane == DEFAULTPLANE)
|
|
v = Font_BeginChar(fontplanes.defaultfont);
|
|
else
|
|
v = Font_BeginChar(curfont->singletexture);
|
|
}
|
|
else
|
|
{
|
|
sx = ((px+c->left)*(int)vid.width) / (float)vid.pixelwidth;
|
|
sy = ((py+c->top)*(int)vid.height) / (float)vid.pixelheight;
|
|
sw = ((c->bmw+1)*vid.width) / (float)vid.pixelwidth;
|
|
sh = ((c->bmh+1)*vid.height) / (float)vid.pixelheight;
|
|
v = Font_BeginChar(fontplanes.texnum[c->texplane]);
|
|
}
|
|
|
|
font_texcoord[v+0][0] = s0;
|
|
font_texcoord[v+0][1] = t0;
|
|
font_texcoord[v+1][0] = s1;
|
|
font_texcoord[v+1][1] = t0;
|
|
font_texcoord[v+2][0] = s1;
|
|
font_texcoord[v+2][1] = t1;
|
|
font_texcoord[v+3][0] = s0;
|
|
font_texcoord[v+3][1] = t1;
|
|
|
|
font_coord[v+0][0] = sx;
|
|
font_coord[v+0][1] = sy;
|
|
font_coord[v+1][0] = sx+sw;
|
|
font_coord[v+1][1] = sy;
|
|
font_coord[v+2][0] = sx+sw;
|
|
font_coord[v+2][1] = sy+sh;
|
|
font_coord[v+3][0] = sx;
|
|
font_coord[v+3][1] = sy+sh;
|
|
|
|
return nextx;
|
|
}
|
|
#endif //!SERVERONLY
|