mirror of
https://github.com/ocornut/imgui.git
synced 2024-11-27 16:29:02 +08:00
Updated to stb_truetype 1.05
This commit is contained in:
ocornut
parent
46a27cdb6b
commit
95e2afcad6
@ -1,7 +1,7 @@
|
||||
// [ImGui] this is a slightly modified version of stb_truetype.h 1.02
|
||||
// [ImGui] this is a slightly modified version of stb_truetype.h 1.05
|
||||
// [ImGui] we added stbtt_PackFontRangesGatherRects() and stbtt_PackFontRangesRenderIntoRects() and modified stbtt_PackBegin()
|
||||
|
||||
// stb_truetype.h - v1.02 - public domain
|
||||
// stb_truetype.h - v1.05 - public domain
|
||||
// authored from 2009-2014 by Sean Barrett / RAD Game Tools
|
||||
//
|
||||
// This library processes TrueType files:
|
||||
@ -37,12 +37,20 @@
|
||||
// Johan Duparc
|
||||
// Hou Qiming
|
||||
// Fabian "ryg" Giesen
|
||||
// Martins Mozeiko
|
||||
// Cap Petschulat
|
||||
// Omar Cornut
|
||||
// github:aloucks
|
||||
// Peter LaValle
|
||||
//
|
||||
// Misc other:
|
||||
// Ryan Gordon
|
||||
//
|
||||
// VERSION HISTORY
|
||||
//
|
||||
// 1.05 (2015-04-15) fix misplaced definitions for STBTT_STATIC
|
||||
// 1.04 (2015-04-15) typo in example
|
||||
// 1.03 (2015-04-12) STBTT_STATIC, fix memory leak in new packing, various fixes
|
||||
// 1.02 (2014-12-10) fix various warnings & compile issues w/ stb_rect_pack, C++
|
||||
// 1.01 (2014-12-08) fix subpixel position when oversampling to exactly match
|
||||
// non-oversampled; STBTT_POINT_SIZE for packed case only
|
||||
@ -86,6 +94,9 @@
|
||||
// before the #include of this file. This expands out the actual
|
||||
// implementation into that C/C++ file.
|
||||
//
|
||||
// To make the implementation private to the file that generates the implementation,
|
||||
// #define STBTT_STATIC
|
||||
//
|
||||
// Simple 3D API (don't ship this, but it's fine for tools and quick start)
|
||||
// stbtt_BakeFontBitmap() -- bake a font to a bitmap for use as texture
|
||||
// stbtt_GetBakedQuad() -- compute quad to draw for a given char
|
||||
@ -225,16 +236,16 @@
|
||||
#define STB_TRUETYPE_IMPLEMENTATION // force following include to generate implementation
|
||||
#include "stb_truetype.h"
|
||||
|
||||
char ttf_buffer[1<<20];
|
||||
unsigned char ttf_buffer[1<<20];
|
||||
unsigned char temp_bitmap[512*512];
|
||||
|
||||
stbtt_bakedchar cdata[96]; // ASCII 32..126 is 95 glyphs
|
||||
GLstbtt_uint ftex;
|
||||
GLuint ftex;
|
||||
|
||||
void my_stbtt_initfont(void)
|
||||
{
|
||||
fread(ttf_buffer, 1, 1<<20, fopen("c:/windows/fonts/times.ttf", "rb"));
|
||||
stbtt_BakeFontBitmap(data,0, 32.0, temp_bitmap,512,512, 32,96, cdata); // no guarantee this fits!
|
||||
stbtt_BakeFontBitmap(ttf_buffer,0, 32.0, temp_bitmap,512,512, 32,96, cdata); // no guarantee this fits!
|
||||
// can free ttf_buffer at this point
|
||||
glGenTextures(1, &ftex);
|
||||
glBindTexture(GL_TEXTURE_2D, ftex);
|
||||
@ -246,6 +257,7 @@ void my_stbtt_initfont(void)
|
||||
void my_stbtt_print(float x, float y, char *text)
|
||||
{
|
||||
// assume orthographic projection with units = screen pixels, origin at top left
|
||||
glEnable(GL_TEXTURE_2D);
|
||||
glBindTexture(GL_TEXTURE_2D, ftex);
|
||||
glBegin(GL_QUADS);
|
||||
while (*text) {
|
||||
@ -379,12 +391,6 @@ int main(int arg, char **argv)
|
||||
typedef char stbtt__check_size32[sizeof(stbtt_int32)==4 ? 1 : -1];
|
||||
typedef char stbtt__check_size16[sizeof(stbtt_int16)==2 ? 1 : -1];
|
||||
|
||||
#ifdef STBTT_STATIC
|
||||
#define STBTT_DEF static
|
||||
#else
|
||||
#define STBTT_DEF extern
|
||||
#endif
|
||||
|
||||
// #define your own STBTT_sort() to override this to avoid qsort
|
||||
#ifndef STBTT_sort
|
||||
#include <stdlib.h>
|
||||
@ -437,6 +443,12 @@ int main(int arg, char **argv)
|
||||
#ifndef __STB_INCLUDE_STB_TRUETYPE_H__
|
||||
#define __STB_INCLUDE_STB_TRUETYPE_H__
|
||||
|
||||
#ifdef STBTT_STATIC
|
||||
#define STBTT_DEF static
|
||||
#else
|
||||
#define STBTT_DEF extern
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
@ -1059,7 +1071,6 @@ STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codep
|
||||
stbtt_uint16 searchRange = ttUSHORT(data+index_map+8) >> 1;
|
||||
stbtt_uint16 entrySelector = ttUSHORT(data+index_map+10);
|
||||
stbtt_uint16 rangeShift = ttUSHORT(data+index_map+12) >> 1;
|
||||
stbtt_uint16 item, offset, start, end;
|
||||
|
||||
// do a binary search of the segments
|
||||
stbtt_uint32 endCount = index_map + 14;
|
||||
@ -1076,8 +1087,8 @@ STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codep
|
||||
// now decrement to bias correctly to find smallest
|
||||
search -= 2;
|
||||
while (entrySelector) {
|
||||
stbtt_uint16 end;
|
||||
searchRange >>= 1;
|
||||
start = ttUSHORT(data + search + searchRange*2 + segcount*2 + 2);
|
||||
end = ttUSHORT(data + search + searchRange*2);
|
||||
if (unicode_codepoint > end)
|
||||
search += searchRange*2;
|
||||
@ -1085,11 +1096,12 @@ STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codep
|
||||
}
|
||||
search += 2;
|
||||
|
||||
item = (stbtt_uint16) ((search - endCount) >> 1);
|
||||
{
|
||||
stbtt_uint16 offset, start;
|
||||
stbtt_uint16 item = (stbtt_uint16) ((search - endCount) >> 1);
|
||||
|
||||
STBTT_assert(unicode_codepoint <= ttUSHORT(data + endCount + 2*item));
|
||||
start = ttUSHORT(data + index_map + 14 + segcount*2 + 2 + 2*item);
|
||||
end = ttUSHORT(data + index_map + 14 + 2 + 2*item);
|
||||
if (unicode_codepoint < start)
|
||||
return 0;
|
||||
|
||||
@ -1098,6 +1110,7 @@ STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codep
|
||||
return (stbtt_uint16) (unicode_codepoint + ttSHORT(data + index_map + 14 + segcount*4 + 2 + 2*item));
|
||||
|
||||
return ttUSHORT(data + offset + (unicode_codepoint-start)*2 + index_map + 14 + segcount*6 + 2 + 2*item);
|
||||
}
|
||||
} else if (format == 12 || format == 13) {
|
||||
stbtt_uint32 ngroups = ttULONG(data+index_map+12);
|
||||
stbtt_int32 low,high;
|
||||
@ -2054,8 +2067,8 @@ STBTT_DEF void stbtt_GetBakedQuad(stbtt_bakedchar *chardata, int pw, int ph, int
|
||||
float d3d_bias = opengl_fillrule ? 0 : -0.5f;
|
||||
float ipw = 1.0f / pw, iph = 1.0f / ph;
|
||||
stbtt_bakedchar *b = chardata + char_index;
|
||||
int round_x = STBTT_ifloor((*xpos + b->xoff) + 0.5);
|
||||
int round_y = STBTT_ifloor((*ypos + b->yoff) + 0.5);
|
||||
int round_x = STBTT_ifloor((*xpos + b->xoff) + 0.5f);
|
||||
int round_y = STBTT_ifloor((*ypos + b->yoff) + 0.5f);
|
||||
|
||||
q->x0 = round_x + d3d_bias;
|
||||
q->y0 = round_y + d3d_bias;
|
||||
@ -2209,7 +2222,7 @@ static void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_i
|
||||
for (j=0; j < h; ++j) {
|
||||
int i;
|
||||
unsigned int total;
|
||||
memset(buffer, 0, kernel_width);
|
||||
STBTT_memset(buffer, 0, kernel_width);
|
||||
|
||||
total = 0;
|
||||
|
||||
@ -2263,7 +2276,7 @@ static void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_i
|
||||
for (j=0; j < w; ++j) {
|
||||
int i;
|
||||
unsigned int total;
|
||||
memset(buffer, 0, kernel_width);
|
||||
STBTT_memset(buffer, 0, kernel_width);
|
||||
|
||||
total = 0;
|
||||
|
||||
@ -2453,6 +2466,7 @@ STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, unsigned char *fontd
|
||||
|
||||
return_value = stbtt_PackFontRangesRenderIntoRects(spc, &info, ranges, num_ranges, rects);
|
||||
|
||||
STBTT_free(rects, spc->user_allocator_context);
|
||||
return return_value;
|
||||
}
|
||||
|
||||
@ -2473,8 +2487,8 @@ STBTT_DEF void stbtt_GetPackedQuad(stbtt_packedchar *chardata, int pw, int ph, i
|
||||
stbtt_packedchar *b = chardata + char_index;
|
||||
|
||||
if (align_to_integer) {
|
||||
float x = (float) STBTT_ifloor((*xpos + b->xoff) + 0.5);
|
||||
float y = (float) STBTT_ifloor((*ypos + b->yoff) + 0.5);
|
||||
float x = (float) STBTT_ifloor((*xpos + b->xoff) + 0.5f);
|
||||
float y = (float) STBTT_ifloor((*ypos + b->yoff) + 0.5f);
|
||||
q->x0 = x;
|
||||
q->y0 = y;
|
||||
q->x1 = x + b->xoff2 - b->xoff;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user