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nuklear_font.c
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nuklear_font.c
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#include "nuklear.h"
#include "nuklear_internal.h"
#ifdef NK_INCLUDE_FONT_BAKING
/* -------------------------------------------------------------
*
* RECT PACK
*
* --------------------------------------------------------------*/
#include "stb_rect_pack.h"
/*
* ==============================================================
*
* TRUETYPE
*
* ===============================================================
*/
#define STBTT_MAX_OVERSAMPLE 8
#include "stb_truetype.h"
/* -------------------------------------------------------------
*
* FONT BAKING
*
* --------------------------------------------------------------*/
struct nk_font_bake_data {
struct stbtt_fontinfo info;
struct stbrp_rect *rects;
stbtt_pack_range *ranges;
nk_rune range_count;
};
struct nk_font_baker {
struct nk_allocator alloc;
struct stbtt_pack_context spc;
struct nk_font_bake_data *build;
stbtt_packedchar *packed_chars;
struct stbrp_rect *rects;
stbtt_pack_range *ranges;
};
NK_GLOBAL const nk_size nk_rect_align = NK_ALIGNOF(struct stbrp_rect);
NK_GLOBAL const nk_size nk_range_align = NK_ALIGNOF(stbtt_pack_range);
NK_GLOBAL const nk_size nk_char_align = NK_ALIGNOF(stbtt_packedchar);
NK_GLOBAL const nk_size nk_build_align = NK_ALIGNOF(struct nk_font_bake_data);
NK_GLOBAL const nk_size nk_baker_align = NK_ALIGNOF(struct nk_font_baker);
NK_INTERN int
nk_range_count(const nk_rune *range)
{
const nk_rune *iter = range;
NK_ASSERT(range);
if (!range) return 0;
while (*(iter++) != 0);
return (iter == range) ? 0 : (int)((iter - range)/2);
}
NK_INTERN int
nk_range_glyph_count(const nk_rune *range, int count)
{
int i = 0;
int total_glyphs = 0;
for (i = 0; i < count; ++i) {
int diff;
nk_rune f = range[(i*2)+0];
nk_rune t = range[(i*2)+1];
NK_ASSERT(t >= f);
diff = (int)((t - f) + 1);
total_glyphs += diff;
}
return total_glyphs;
}
NK_API const nk_rune*
nk_font_default_glyph_ranges(void)
{
NK_STORAGE const nk_rune ranges[] = {0x0020, 0x00FF, 0};
return ranges;
}
NK_API const nk_rune*
nk_font_chinese_glyph_ranges(void)
{
NK_STORAGE const nk_rune ranges[] = {
0x0020, 0x00FF,
0x3000, 0x30FF,
0x31F0, 0x31FF,
0xFF00, 0xFFEF,
0x4e00, 0x9FAF,
0
};
return ranges;
}
NK_API const nk_rune*
nk_font_cyrillic_glyph_ranges(void)
{
NK_STORAGE const nk_rune ranges[] = {
0x0020, 0x00FF,
0x0400, 0x052F,
0x2DE0, 0x2DFF,
0xA640, 0xA69F,
0
};
return ranges;
}
NK_API const nk_rune*
nk_font_korean_glyph_ranges(void)
{
NK_STORAGE const nk_rune ranges[] = {
0x0020, 0x00FF,
0x3131, 0x3163,
0xAC00, 0xD79D,
0
};
return ranges;
}
NK_INTERN void
nk_font_baker_memory(nk_size *temp, int *glyph_count,
struct nk_font_config *config_list, int count)
{
int range_count = 0;
int total_range_count = 0;
struct nk_font_config *iter, *i;
NK_ASSERT(config_list);
NK_ASSERT(glyph_count);
if (!config_list) {
*temp = 0;
*glyph_count = 0;
return;
}
*glyph_count = 0;
for (iter = config_list; iter; iter = iter->next) {
i = iter;
do {if (!i->range) iter->range = nk_font_default_glyph_ranges();
range_count = nk_range_count(i->range);
total_range_count += range_count;
*glyph_count += nk_range_glyph_count(i->range, range_count);
} while ((i = i->n) != iter);
}
*temp = (nk_size)*glyph_count * sizeof(struct stbrp_rect);
*temp += (nk_size)total_range_count * sizeof(stbtt_pack_range);
*temp += (nk_size)*glyph_count * sizeof(stbtt_packedchar);
*temp += (nk_size)count * sizeof(struct nk_font_bake_data);
*temp += sizeof(struct nk_font_baker);
*temp += nk_rect_align + nk_range_align + nk_char_align;
*temp += nk_build_align + nk_baker_align;
}
NK_INTERN struct nk_font_baker*
nk_font_baker(void *memory, int glyph_count, int count, struct nk_allocator *alloc)
{
struct nk_font_baker *baker;
if (!memory) return 0;
/* setup baker inside a memory block */
baker = (struct nk_font_baker*)NK_ALIGN_PTR(memory, nk_baker_align);
baker->build = (struct nk_font_bake_data*)NK_ALIGN_PTR((baker + 1), nk_build_align);
baker->packed_chars = (stbtt_packedchar*)NK_ALIGN_PTR((baker->build + count), nk_char_align);
baker->rects = (struct stbrp_rect*)NK_ALIGN_PTR((baker->packed_chars + glyph_count), nk_rect_align);
baker->ranges = (stbtt_pack_range*)NK_ALIGN_PTR((baker->rects + glyph_count), nk_range_align);
baker->alloc = *alloc;
return baker;
}
NK_INTERN int
nk_font_bake_pack(struct nk_font_baker *baker,
nk_size *image_memory, int *width, int *height, struct nk_recti *custom,
const struct nk_font_config *config_list, int count,
struct nk_allocator *alloc)
{
NK_STORAGE const nk_size max_height = 1024 * 32;
const struct nk_font_config *config_iter, *it;
int total_glyph_count = 0;
int total_range_count = 0;
int range_count = 0;
int i = 0;
NK_ASSERT(image_memory);
NK_ASSERT(width);
NK_ASSERT(height);
NK_ASSERT(config_list);
NK_ASSERT(count);
NK_ASSERT(alloc);
if (!image_memory || !width || !height || !config_list || !count) return nk_false;
for (config_iter = config_list; config_iter; config_iter = config_iter->next) {
it = config_iter;
do {range_count = nk_range_count(it->range);
total_range_count += range_count;
total_glyph_count += nk_range_glyph_count(it->range, range_count);
} while ((it = it->n) != config_iter);
}
/* setup font baker from temporary memory */
for (config_iter = config_list; config_iter; config_iter = config_iter->next) {
it = config_iter;
do {
struct stbtt_fontinfo *font_info = &baker->build[i++].info;
font_info->userdata = alloc;
if (!stbtt_InitFont(font_info, (const unsigned char*)it->ttf_blob, 0))
return nk_false;
} while ((it = it->n) != config_iter);
}
*height = 0;
*width = (total_glyph_count > 1000) ? 1024 : 512;
stbtt_PackBegin(&baker->spc, 0, (int)*width, (int)max_height, 0, 1, alloc);
{
int input_i = 0;
int range_n = 0;
int rect_n = 0;
int char_n = 0;
if (custom) {
/* pack custom user data first so it will be in the upper left corner*/
struct stbrp_rect custom_space;
nk_zero(&custom_space, sizeof(custom_space));
custom_space.w = (stbrp_coord)(custom->w);
custom_space.h = (stbrp_coord)(custom->h);
stbtt_PackSetOversampling(&baker->spc, 1, 1);
stbrp_pack_rects((struct stbrp_context*)baker->spc.pack_info, &custom_space, 1);
*height = NK_MAX(*height, (int)(custom_space.y + custom_space.h));
custom->x = (short)custom_space.x;
custom->y = (short)custom_space.y;
custom->w = (short)custom_space.w;
custom->h = (short)custom_space.h;
}
/* first font pass: pack all glyphs */
for (input_i = 0, config_iter = config_list; input_i < count && config_iter;
config_iter = config_iter->next) {
it = config_iter;
do {int n = 0;
int glyph_count;
const nk_rune *in_range;
const struct nk_font_config *cfg = it;
struct nk_font_bake_data *tmp = &baker->build[input_i++];
/* count glyphs + ranges in current font */
glyph_count = 0; range_count = 0;
for (in_range = cfg->range; in_range[0] && in_range[1]; in_range += 2) {
glyph_count += (int)(in_range[1] - in_range[0]) + 1;
range_count++;
}
/* setup ranges */
tmp->ranges = baker->ranges + range_n;
tmp->range_count = (nk_rune)range_count;
range_n += range_count;
for (i = 0; i < range_count; ++i) {
in_range = &cfg->range[i * 2];
tmp->ranges[i].font_size = cfg->size;
tmp->ranges[i].first_unicode_codepoint_in_range = (int)in_range[0];
tmp->ranges[i].num_chars = (int)(in_range[1]- in_range[0]) + 1;
tmp->ranges[i].chardata_for_range = baker->packed_chars + char_n;
char_n += tmp->ranges[i].num_chars;
}
/* pack */
tmp->rects = baker->rects + rect_n;
rect_n += glyph_count;
stbtt_PackSetOversampling(&baker->spc, cfg->oversample_h, cfg->oversample_v);
n = stbtt_PackFontRangesGatherRects(&baker->spc, &tmp->info,
tmp->ranges, (int)tmp->range_count, tmp->rects);
stbrp_pack_rects((struct stbrp_context*)baker->spc.pack_info, tmp->rects, (int)n);
/* texture height */
for (i = 0; i < n; ++i) {
if (tmp->rects[i].was_packed)
*height = NK_MAX(*height, tmp->rects[i].y + tmp->rects[i].h);
}
} while ((it = it->n) != config_iter);
}
NK_ASSERT(rect_n == total_glyph_count);
NK_ASSERT(char_n == total_glyph_count);
NK_ASSERT(range_n == total_range_count);
}
*height = (int)nk_round_up_pow2((nk_uint)*height);
*image_memory = (nk_size)(*width) * (nk_size)(*height);
return nk_true;
}
NK_INTERN void
nk_font_bake(struct nk_font_baker *baker, void *image_memory, int width, int height,
struct nk_font_glyph *glyphs, int glyphs_count,
const struct nk_font_config *config_list, int font_count)
{
int input_i = 0;
nk_rune glyph_n = 0;
const struct nk_font_config *config_iter;
const struct nk_font_config *it;
NK_ASSERT(image_memory);
NK_ASSERT(width);
NK_ASSERT(height);
NK_ASSERT(config_list);
NK_ASSERT(baker);
NK_ASSERT(font_count);
NK_ASSERT(glyphs_count);
if (!image_memory || !width || !height || !config_list ||
!font_count || !glyphs || !glyphs_count)
return;
/* second font pass: render glyphs */
nk_zero(image_memory, (nk_size)((nk_size)width * (nk_size)height));
baker->spc.pixels = (unsigned char*)image_memory;
baker->spc.height = (int)height;
for (input_i = 0, config_iter = config_list; input_i < font_count && config_iter;
config_iter = config_iter->next) {
it = config_iter;
do {const struct nk_font_config *cfg = it;
struct nk_font_bake_data *tmp = &baker->build[input_i++];
stbtt_PackSetOversampling(&baker->spc, cfg->oversample_h, cfg->oversample_v);
stbtt_PackFontRangesRenderIntoRects(&baker->spc, &tmp->info, tmp->ranges, (int)tmp->range_count, tmp->rects);
} while ((it = it->n) != config_iter);
} stbtt_PackEnd(&baker->spc);
/* third pass: setup font and glyphs */
for (input_i = 0, config_iter = config_list; input_i < font_count && config_iter;
config_iter = config_iter->next) {
it = config_iter;
do {nk_size i = 0;
int char_idx = 0;
nk_rune glyph_count = 0;
const struct nk_font_config *cfg = it;
struct nk_font_bake_data *tmp = &baker->build[input_i++];
struct nk_baked_font *dst_font = cfg->font;
float font_scale = stbtt_ScaleForPixelHeight(&tmp->info, cfg->size);
int unscaled_ascent, unscaled_descent, unscaled_line_gap;
stbtt_GetFontVMetrics(&tmp->info, &unscaled_ascent, &unscaled_descent,
&unscaled_line_gap);
/* fill baked font */
if (!cfg->merge_mode) {
dst_font->ranges = cfg->range;
dst_font->height = cfg->size;
dst_font->ascent = ((float)unscaled_ascent * font_scale);
dst_font->descent = ((float)unscaled_descent * font_scale);
dst_font->glyph_offset = glyph_n;
/*
Need to zero this, or it will carry over from a previous
bake, and cause a segfault when accessing glyphs[].
*/
dst_font->glyph_count = 0;
}
/* fill own baked font glyph array */
for (i = 0; i < tmp->range_count; ++i) {
stbtt_pack_range *range = &tmp->ranges[i];
for (char_idx = 0; char_idx < range->num_chars; char_idx++)
{
nk_rune codepoint = 0;
float dummy_x = 0, dummy_y = 0;
stbtt_aligned_quad q;
struct nk_font_glyph *glyph;
/* query glyph bounds from stb_truetype */
const stbtt_packedchar *pc = &range->chardata_for_range[char_idx];
if (!pc->x0 && !pc->x1 && !pc->y0 && !pc->y1) continue;
codepoint = (nk_rune)(range->first_unicode_codepoint_in_range + char_idx);
stbtt_GetPackedQuad(range->chardata_for_range, (int)width,
(int)height, char_idx, &dummy_x, &dummy_y, &q, 0);
/* fill own glyph type with data */
glyph = &glyphs[dst_font->glyph_offset + dst_font->glyph_count + (unsigned int)glyph_count];
glyph->codepoint = codepoint;
glyph->x0 = q.x0; glyph->y0 = q.y0;
glyph->x1 = q.x1; glyph->y1 = q.y1;
glyph->y0 += (dst_font->ascent + 0.5f);
glyph->y1 += (dst_font->ascent + 0.5f);
glyph->w = glyph->x1 - glyph->x0 + 0.5f;
glyph->h = glyph->y1 - glyph->y0;
if (cfg->coord_type == NK_COORD_PIXEL) {
glyph->u0 = q.s0 * (float)width;
glyph->v0 = q.t0 * (float)height;
glyph->u1 = q.s1 * (float)width;
glyph->v1 = q.t1 * (float)height;
} else {
glyph->u0 = q.s0;
glyph->v0 = q.t0;
glyph->u1 = q.s1;
glyph->v1 = q.t1;
}
glyph->xadvance = (pc->xadvance + cfg->spacing.x);
if (cfg->pixel_snap)
glyph->xadvance = (float)(int)(glyph->xadvance + 0.5f);
glyph_count++;
}
}
dst_font->glyph_count += glyph_count;
glyph_n += glyph_count;
} while ((it = it->n) != config_iter);
}
}
NK_INTERN void
nk_font_bake_custom_data(void *img_memory, int img_width, int img_height,
struct nk_recti img_dst, const char *texture_data_mask, int tex_width,
int tex_height, char white, char black)
{
nk_byte *pixels;
int y = 0;
int x = 0;
int n = 0;
NK_ASSERT(img_memory);
NK_ASSERT(img_width);
NK_ASSERT(img_height);
NK_ASSERT(texture_data_mask);
NK_UNUSED(tex_height);
if (!img_memory || !img_width || !img_height || !texture_data_mask)
return;
pixels = (nk_byte*)img_memory;
for (y = 0, n = 0; y < tex_height; ++y) {
for (x = 0; x < tex_width; ++x, ++n) {
const int off0 = ((img_dst.x + x) + (img_dst.y + y) * img_width);
const int off1 = off0 + 1 + tex_width;
pixels[off0] = (texture_data_mask[n] == white) ? 0xFF : 0x00;
pixels[off1] = (texture_data_mask[n] == black) ? 0xFF : 0x00;
}
}
}
NK_INTERN void
nk_font_bake_convert(void *out_memory, int img_width, int img_height,
const void *in_memory)
{
int n = 0;
nk_rune *dst;
const nk_byte *src;
NK_ASSERT(out_memory);
NK_ASSERT(in_memory);
NK_ASSERT(img_width);
NK_ASSERT(img_height);
if (!out_memory || !in_memory || !img_height || !img_width) return;
dst = (nk_rune*)out_memory;
src = (const nk_byte*)in_memory;
for (n = (int)(img_width * img_height); n > 0; n--)
*dst++ = ((nk_rune)(*src++) << 24) | 0x00FFFFFF;
}
/* -------------------------------------------------------------
*
* FONT
*
* --------------------------------------------------------------*/
NK_INTERN float
nk_font_text_width(nk_handle handle, float height, const char *text, int len)
{
nk_rune unicode;
int text_len = 0;
float text_width = 0;
int glyph_len = 0;
float scale = 0;
struct nk_font *font = (struct nk_font*)handle.ptr;
NK_ASSERT(font);
NK_ASSERT(font->glyphs);
if (!font || !text || !len)
return 0;
scale = height/font->info.height;
glyph_len = text_len = nk_utf_decode(text, &unicode, (int)len);
if (!glyph_len) return 0;
while (text_len <= (int)len && glyph_len) {
const struct nk_font_glyph *g;
if (unicode == NK_UTF_INVALID) break;
/* query currently drawn glyph information */
g = nk_font_find_glyph(font, unicode);
text_width += g->xadvance * scale;
/* offset next glyph */
glyph_len = nk_utf_decode(text + text_len, &unicode, (int)len - text_len);
text_len += glyph_len;
}
return text_width;
}
#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
NK_INTERN void
nk_font_query_font_glyph(nk_handle handle, float height,
struct nk_user_font_glyph *glyph, nk_rune codepoint, nk_rune next_codepoint)
{
float scale;
const struct nk_font_glyph *g;
struct nk_font *font;
NK_ASSERT(glyph);
NK_UNUSED(next_codepoint);
font = (struct nk_font*)handle.ptr;
NK_ASSERT(font);
NK_ASSERT(font->glyphs);
if (!font || !glyph)
return;
scale = height/font->info.height;
g = nk_font_find_glyph(font, codepoint);
glyph->width = (g->x1 - g->x0) * scale;
glyph->height = (g->y1 - g->y0) * scale;
glyph->offset = nk_vec2(g->x0 * scale, g->y0 * scale);
glyph->xadvance = (g->xadvance * scale);
glyph->uv[0] = nk_vec2(g->u0, g->v0);
glyph->uv[1] = nk_vec2(g->u1, g->v1);
}
#endif
NK_API const struct nk_font_glyph*
nk_font_find_glyph(struct nk_font *font, nk_rune unicode)
{
int i = 0;
int count;
int total_glyphs = 0;
const struct nk_font_glyph *glyph = 0;
const struct nk_font_config *iter = 0;
NK_ASSERT(font);
NK_ASSERT(font->glyphs);
NK_ASSERT(font->info.ranges);
if (!font || !font->glyphs) return 0;
glyph = font->fallback;
iter = font->config;
do {count = nk_range_count(iter->range);
for (i = 0; i < count; ++i) {
nk_rune f = iter->range[(i*2)+0];
nk_rune t = iter->range[(i*2)+1];
int diff = (int)((t - f) + 1);
if (unicode >= f && unicode <= t)
return &font->glyphs[((nk_rune)total_glyphs + (unicode - f))];
total_glyphs += diff;
}
} while ((iter = iter->n) != font->config);
return glyph;
}
NK_INTERN void
nk_font_init(struct nk_font *font, float pixel_height,
nk_rune fallback_codepoint, struct nk_font_glyph *glyphs,
const struct nk_baked_font *baked_font, nk_handle atlas)
{
struct nk_baked_font baked;
NK_ASSERT(font);
NK_ASSERT(glyphs);
NK_ASSERT(baked_font);
if (!font || !glyphs || !baked_font)
return;
baked = *baked_font;
font->fallback = 0;
font->info = baked;
font->scale = (float)pixel_height / (float)font->info.height;
font->glyphs = &glyphs[baked_font->glyph_offset];
font->texture = atlas;
font->fallback_codepoint = fallback_codepoint;
font->fallback = nk_font_find_glyph(font, fallback_codepoint);
font->handle.height = font->info.height * font->scale;
font->handle.width = nk_font_text_width;
font->handle.userdata.ptr = font;
#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
font->handle.query = nk_font_query_font_glyph;
font->handle.texture = font->texture;
#endif
}
/* ---------------------------------------------------------------------------
*
* DEFAULT FONT
*
* ProggyClean.ttf
* Copyright (c) 2004, 2005 Tristan Grimmer
* MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
* Download and more information at http://upperbounds.net
*-----------------------------------------------------------------------------*/
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Woverlength-strings"
#elif defined(__GNUC__) || defined(__GNUG__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Woverlength-strings"
#endif
#ifdef NK_INCLUDE_DEFAULT_FONT
NK_GLOBAL const char nk_proggy_clean_ttf_compressed_data_base85[11980+1] =
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":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
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"?6*C()dOp7:WL,b&3Rg/.cmM9&r^>$(>.Z-I&J(Q0Hd5Q%7Co-b`-c<N(6r@ip+AurK<m86QIth*#v;-OBqi+L7wDE-Ir8K['m+DDSLwK&/.?-V%U_%3:qKNu$_b*B-kp7NaD'QdWQPK"
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">gXm8YB`1d@K#n]76-a$U,mF<fX]idqd)<3,]J7JmW4`6]uks=4-72L(jEk+:bJ0M^q-8Dm_Z?0olP1C9Sa&H[d&c$ooQUj]Exd*3ZM@-WGW2%s',B-_M%>%Ul:#/'xoFM9QX-$.QN'>"
"[%$Z$uF6pA6Ki2O5:8w*vP1<-1`[G,)-m#>0`P&#eb#.3i)rtB61(o'$?X3B</R90;eZ]%Ncq;-Tl]#F>2Qft^ae_5tKL9MUe9b*sLEQ95C&`=G?@Mj=wh*'3E>=-<)Gt*Iw)'QG:`@I"
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";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>"
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"d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4"
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"/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
"m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
"TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
"GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
"O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
#endif /* NK_INCLUDE_DEFAULT_FONT */
#define NK_CURSOR_DATA_W 90
#define NK_CURSOR_DATA_H 27
NK_GLOBAL const char nk_custom_cursor_data[NK_CURSOR_DATA_W * NK_CURSOR_DATA_H + 1] =
{
"..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX"
"..- -X.....X- X.X - X.X -X.....X - X.....X"
"--- -XXX.XXX- X...X - X...X -X....X - X....X"
"X - X.X - X.....X - X.....X -X...X - X...X"
"XX - X.X -X.......X- X.......X -X..X.X - X.X..X"
"X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X"
"X..X - X.X - X.X - X.X -XX X.X - X.X XX"
"X...X - X.X - X.X - XX X.X XX - X.X - X.X "
"X....X - X.X - X.X - X.X X.X X.X - X.X - X.X "
"X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X "
"X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X "
"X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X "
"X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X "
"X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X "
"X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X "
"X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X "
"X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX "
"X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------"
"X.X X..X - -X.......X- X.......X - XX XX - "
"XX X..X - - X.....X - X.....X - X.X X.X - "
" X..X - X...X - X...X - X..X X..X - "
" XX - X.X - X.X - X...XXXXXXXXXXXXX...X - "
"------------ - X - X -X.....................X- "
" ----------------------------------- X...XXXXXXXXXXXXX...X - "
" - X..X X..X - "
" - X.X X.X - "
" - XX XX - "
};
#ifdef __clang__
#pragma clang diagnostic pop
#elif defined(__GNUC__) || defined(__GNUG__)
#pragma GCC diagnostic pop
#endif
NK_GLOBAL unsigned char *nk__barrier;
NK_GLOBAL unsigned char *nk__barrier2;
NK_GLOBAL unsigned char *nk__barrier3;
NK_GLOBAL unsigned char *nk__barrier4;
NK_GLOBAL unsigned char *nk__dout;
NK_INTERN unsigned int
nk_decompress_length(unsigned char *input)
{
return (unsigned int)((input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11]);
}
NK_INTERN void
nk__match(unsigned char *data, unsigned int length)
{
/* INVERSE of memmove... write each byte before copying the next...*/
NK_ASSERT (nk__dout + length <= nk__barrier);
if (nk__dout + length > nk__barrier) { nk__dout += length; return; }
if (data < nk__barrier4) { nk__dout = nk__barrier+1; return; }
while (length--) *nk__dout++ = *data++;
}
NK_INTERN void
nk__lit(unsigned char *data, unsigned int length)
{
NK_ASSERT (nk__dout + length <= nk__barrier);
if (nk__dout + length > nk__barrier) { nk__dout += length; return; }
if (data < nk__barrier2) { nk__dout = nk__barrier+1; return; }
NK_MEMCPY(nk__dout, data, length);
nk__dout += length;
}
NK_INTERN unsigned char*
nk_decompress_token(unsigned char *i)
{
#define nk__in2(x) ((i[x] << 8) + i[(x)+1])
#define nk__in3(x) ((i[x] << 16) + nk__in2((x)+1))
#define nk__in4(x) ((i[x] << 24) + nk__in3((x)+1))
if (*i >= 0x20) { /* use fewer if's for cases that expand small */
if (*i >= 0x80) nk__match(nk__dout-i[1]-1, (unsigned int)i[0] - 0x80 + 1), i += 2;
else if (*i >= 0x40) nk__match(nk__dout-(nk__in2(0) - 0x4000 + 1), (unsigned int)i[2]+1), i += 3;
else /* *i >= 0x20 */ nk__lit(i+1, (unsigned int)i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
} else { /* more ifs for cases that expand large, since overhead is amortized */
if (*i >= 0x18) nk__match(nk__dout-(unsigned int)(nk__in3(0) - 0x180000 + 1), (unsigned int)i[3]+1), i += 4;
else if (*i >= 0x10) nk__match(nk__dout-(unsigned int)(nk__in3(0) - 0x100000 + 1), (unsigned int)nk__in2(3)+1), i += 5;
else if (*i >= 0x08) nk__lit(i+2, (unsigned int)nk__in2(0) - 0x0800 + 1), i += 2 + (nk__in2(0) - 0x0800 + 1);
else if (*i == 0x07) nk__lit(i+3, (unsigned int)nk__in2(1) + 1), i += 3 + (nk__in2(1) + 1);
else if (*i == 0x06) nk__match(nk__dout-(unsigned int)(nk__in3(1)+1), i[4]+1u), i += 5;
else if (*i == 0x04) nk__match(nk__dout-(unsigned int)(nk__in3(1)+1), (unsigned int)nk__in2(4)+1u), i += 6;
}
return i;
}
NK_INTERN unsigned int
nk_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
{
const unsigned long ADLER_MOD = 65521;
unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
unsigned long blocklen, i;
blocklen = buflen % 5552;
while (buflen) {
for (i=0; i + 7 < blocklen; i += 8) {
s1 += buffer[0]; s2 += s1;
s1 += buffer[1]; s2 += s1;
s1 += buffer[2]; s2 += s1;
s1 += buffer[3]; s2 += s1;
s1 += buffer[4]; s2 += s1;
s1 += buffer[5]; s2 += s1;
s1 += buffer[6]; s2 += s1;
s1 += buffer[7]; s2 += s1;
buffer += 8;
}
for (; i < blocklen; ++i) {
s1 += *buffer++; s2 += s1;
}
s1 %= ADLER_MOD; s2 %= ADLER_MOD;
buflen -= (unsigned int)blocklen;
blocklen = 5552;
}
return (unsigned int)(s2 << 16) + (unsigned int)s1;
}
NK_INTERN unsigned int
nk_decompress(unsigned char *output, unsigned char *i, unsigned int length)
{
unsigned int olen;
if (nk__in4(0) != 0x57bC0000) return 0;
if (nk__in4(4) != 0) return 0; /* error! stream is > 4GB */
olen = nk_decompress_length(i);
nk__barrier2 = i;
nk__barrier3 = i+length;
nk__barrier = output + olen;
nk__barrier4 = output;
i += 16;
nk__dout = output;
for (;;) {
unsigned char *old_i = i;
i = nk_decompress_token(i);
if (i == old_i) {
if (*i == 0x05 && i[1] == 0xfa) {
NK_ASSERT(nk__dout == output + olen);
if (nk__dout != output + olen) return 0;
if (nk_adler32(1, output, olen) != (unsigned int) nk__in4(2))
return 0;
return olen;
} else {
NK_ASSERT(0); /* NOTREACHED */
return 0;
}
}
NK_ASSERT(nk__dout <= output + olen);
if (nk__dout > output + olen)
return 0;
}
}
NK_INTERN unsigned int
nk_decode_85_byte(char c)
{
return (unsigned int)((c >= '\\') ? c-36 : c-35);
}
NK_INTERN void
nk_decode_85(unsigned char* dst, const unsigned char* src)
{
while (*src)
{
unsigned int tmp =
nk_decode_85_byte((char)src[0]) +
85 * (nk_decode_85_byte((char)src[1]) +
85 * (nk_decode_85_byte((char)src[2]) +
85 * (nk_decode_85_byte((char)src[3]) +
85 * nk_decode_85_byte((char)src[4]))));
/* we can't assume little-endianess. */
dst[0] = (unsigned char)((tmp >> 0) & 0xFF);
dst[1] = (unsigned char)((tmp >> 8) & 0xFF);
dst[2] = (unsigned char)((tmp >> 16) & 0xFF);
dst[3] = (unsigned char)((tmp >> 24) & 0xFF);
src += 5;
dst += 4;
}
}
/* -------------------------------------------------------------
*
* FONT ATLAS
*
* --------------------------------------------------------------*/
NK_API struct nk_font_config
nk_font_config(float pixel_height)
{
struct nk_font_config cfg;
nk_zero_struct(cfg);
cfg.ttf_blob = 0;
cfg.ttf_size = 0;
cfg.ttf_data_owned_by_atlas = 0;
cfg.size = pixel_height;
cfg.oversample_h = 3;
cfg.oversample_v = 1;
cfg.pixel_snap = 0;
cfg.coord_type = NK_COORD_UV;
cfg.spacing = nk_vec2(0,0);
cfg.range = nk_font_default_glyph_ranges();
cfg.merge_mode = 0;
cfg.fallback_glyph = '?';
cfg.font = 0;
cfg.n = 0;
return cfg;
}
#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
NK_API void
nk_font_atlas_init_default(struct nk_font_atlas *atlas)
{
NK_ASSERT(atlas);
if (!atlas) return;
nk_zero_struct(*atlas);
atlas->temporary.userdata.ptr = 0;
atlas->temporary.alloc = nk_malloc;
atlas->temporary.free = nk_mfree;
atlas->permanent.userdata.ptr = 0;
atlas->permanent.alloc = nk_malloc;
atlas->permanent.free = nk_mfree;
}
#endif
NK_API void
nk_font_atlas_init(struct nk_font_atlas *atlas, struct nk_allocator *alloc)
{
NK_ASSERT(atlas);
NK_ASSERT(alloc);
if (!atlas || !alloc) return;
nk_zero_struct(*atlas);
atlas->permanent = *alloc;
atlas->temporary = *alloc;
}
NK_API void
nk_font_atlas_init_custom(struct nk_font_atlas *atlas,
struct nk_allocator *permanent, struct nk_allocator *temporary)
{
NK_ASSERT(atlas);
NK_ASSERT(permanent);
NK_ASSERT(temporary);
if (!atlas || !permanent || !temporary) return;
nk_zero_struct(*atlas);
atlas->permanent = *permanent;
atlas->temporary = *temporary;
}
NK_API void
nk_font_atlas_begin(struct nk_font_atlas *atlas)
{
NK_ASSERT(atlas);
NK_ASSERT(atlas->temporary.alloc && atlas->temporary.free);
NK_ASSERT(atlas->permanent.alloc && atlas->permanent.free);
if (!atlas || !atlas->permanent.alloc || !atlas->permanent.free ||
!atlas->temporary.alloc || !atlas->temporary.free) return;
if (atlas->glyphs) {
atlas->permanent.free(atlas->permanent.userdata, atlas->glyphs);
atlas->glyphs = 0;
}
if (atlas->pixel) {
atlas->permanent.free(atlas->permanent.userdata, atlas->pixel);
atlas->pixel = 0;
}
}
NK_API struct nk_font*
nk_font_atlas_add(struct nk_font_atlas *atlas, const struct nk_font_config *config)
{
struct nk_font *font = 0;
struct nk_font_config *cfg;
NK_ASSERT(atlas);
NK_ASSERT(atlas->permanent.alloc);
NK_ASSERT(atlas->permanent.free);
NK_ASSERT(atlas->temporary.alloc);
NK_ASSERT(atlas->temporary.free);
NK_ASSERT(config);
NK_ASSERT(config->ttf_blob);
NK_ASSERT(config->ttf_size);
NK_ASSERT(config->size > 0.0f);
if (!atlas || !config || !config->ttf_blob || !config->ttf_size || config->size <= 0.0f||
!atlas->permanent.alloc || !atlas->permanent.free ||
!atlas->temporary.alloc || !atlas->temporary.free)
return 0;
/* allocate font config */
cfg = (struct nk_font_config*)
atlas->permanent.alloc(atlas->permanent.userdata,0, sizeof(struct nk_font_config));
NK_MEMCPY(cfg, config, sizeof(*config));
cfg->n = cfg;
cfg->p = cfg;
if (!config->merge_mode) {
/* insert font config into list */
if (!atlas->config) {
atlas->config = cfg;
cfg->next = 0;
} else {
struct nk_font_config *i = atlas->config;
while (i->next) i = i->next;
i->next = cfg;
cfg->next = 0;
}
/* allocate new font */
font = (struct nk_font*)
atlas->permanent.alloc(atlas->permanent.userdata,0, sizeof(struct nk_font));
NK_ASSERT(font);
nk_zero(font, sizeof(*font));
if (!font) return 0;
font->config = cfg;
/* insert font into list */
if (!atlas->fonts) {
atlas->fonts = font;
font->next = 0;
} else {
struct nk_font *i = atlas->fonts;
while (i->next) i = i->next;
i->next = font;
font->next = 0;
}
cfg->font = &font->info;
} else {
/* extend previously added font */
struct nk_font *f = 0;
struct nk_font_config *c = 0;
NK_ASSERT(atlas->font_num);
f = atlas->fonts;
c = f->config;