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提交 f03e3520 编写于 作者: S Sean Barrett
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stb_rect_pack: fix LARGE_RECT bug 

stb_truetype: oversampling, including oversampling demo app
上级 b6f8358f
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Showing with 1549 addition and 56 deletion
stb_rect_pack.h
浏览文件 @ f03e3520
......@@ -495,6 +495,12 @@ static int rect_original_order(const void *a, const void *b)
return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
}
#ifdef STBRP_LARGE_RECTS
#define STBRP__MAXVAL 0xffffffff
#else
#define STBRP__MAXVAL 0xffff
#endif
STBRP_DEF void stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
{
int i;
......@@ -516,7 +522,7 @@ STBRP_DEF void stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int n
rects[i].x = (stbrp_coord) fr.x;
rects[i].y = (stbrp_coord) fr.y;
} else {
rects[i].x = rects[i].y = 0xffff;
rects[i].x = rects[i].y = STBRP__MAXVAL;
}
}
......@@ -525,6 +531,6 @@ STBRP_DEF void stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int n
// set was_packed flags
for (i=0; i < num_rects; ++i)
rects[i].was_packed = !(rects[i].x == 0xffff && rects[i].y == 0xffff);
rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL);
}
#endif
stb_truetype.h
浏览文件 @ f03e3520
......@@ -35,6 +35,9 @@
// Hou Qiming
// Fabian "ryg" Giesen
//
// Misc other:
// Ryan Gordon
//
// VERSION HISTORY
//
// 0.99 (2014-09-18) fix multiple bugs with subpixel rendering (ryg)
......@@ -428,7 +431,7 @@ extern "C" {
typedef struct
{
unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
float xoff,yoff,xadvance;
float xoff,yoff,xadvance;
} stbtt_bakedchar;
extern int stbtt_BakeFontBitmap(const unsigned char *data, int offset, // font location (use offset=0 for plain .ttf)
......@@ -471,24 +474,38 @@ extern void stbtt_GetBakedQuad(stbtt_bakedchar *chardata, int pw, int ph, // sa
// This provides options for packing multiple fonts into one atlas, not
// perfectly but better than nothing.
typedef struct
{
unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
float xoff,yoff,xadvance;
float xoff2,yoff2;
} stbtt_packedchar;
typedef struct stbtt_pack_context stbtt_pack_context;
typedef struct
{
float font_size; // if positive, pixel height; if negative, points
int first_unicode_char_in_range;
int num_chars_in_range;
stbtt_bakedchar *chardata_for_range; // output
stbtt_packedchar *chardata_for_range; // output
} stbtt_pack_range;
extern int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, void *alloc_context);
extern int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, int padding, void *alloc_context);
// returns 0 if the allocations fail
extern void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample);
extern void stbtt_PackEnd (stbtt_pack_context *spc);
extern int stbtt_PackFontRange(stbtt_pack_context *spc, unsigned char *fontdata, int font_index, float font_size,
int first_unicode_char_in_range, int num_chars_in_range, stbtt_bakedchar *chardata_for_range);
int first_unicode_char_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range);
extern int stbtt_PackFontRanges(stbtt_pack_context *spc, unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges);
extern void stbtt_GetPackedQuad(stbtt_packedchar *chardata, int pw, int ph, // same data as above
int char_index, // character to display
float *xpos, float *ypos, // pointers to current position in screen pixel space
stbtt_aligned_quad *q, // output: quad to draw
int align_to_integer);
// this is an opaque structure that you shouldn't mess with which holds
// all the context needed from PackBegin to PackEnd.
struct stbtt_pack_context {
......@@ -497,6 +514,8 @@ struct stbtt_pack_context {
int width;
int height;
int stride_in_bytes;
int padding;
unsigned int h_oversample, v_oversample;
unsigned char *pixels;
void *nodes;
};
......@@ -808,6 +827,12 @@ enum { // languageID for STBTT_PLATFORM_ID_MAC
#ifdef STB_TRUETYPE_IMPLEMENTATION
#ifndef STBTT_MAX_OVERSAMPLE
#define STBTT_MAX_OVERSAMPLE 8
#endif
typedef stbtt__test_oversample_pow2[(STBTT_MAX_OVERSAMPLE & (STBTT_MAX_OVERSAMPLE-1)) == 0 ? 1 : -1];
//////////////////////////////////////////////////////////////////////////
//
// accessors to parse data from file
......@@ -1947,9 +1972,9 @@ extern int stbtt_BakeFontBitmap(const unsigned char *data, int offset, // font
chardata[i].xadvance = scale * advance;
chardata[i].xoff = (float) x0;
chardata[i].yoff = (float) y0;
x = x + gw + 2;
if (y+gh+2 > bottom_y)
bottom_y = y+gh+2;
x = x + gw + 1;
if (y+gh+1 > bottom_y)
bottom_y = y+gh+1;
}
return bottom_y;
}
......@@ -1977,31 +2002,87 @@ void stbtt_GetBakedQuad(stbtt_bakedchar *chardata, int pw, int ph, int char_inde
//////////////////////////////////////////////////////////////////////////////
//
// bitmap baking
// rectangle packing replacement routines if you don't have stb_rect_pack.h
//
// This is SUPER-AWESOME (tm Ryan Gordon) packing using stb_rect_pack.h. If
// stb_rect_pack.h isn't available, it uses the BakeFontBitmap strategy.
#ifndef STB_RECT_PACK_VERSION
// @TODO: simulate STB_RECT_PACK API with trivial logic from BakeFontBitmap,
// try to share code?!?
#error "no stb_rect_pack"
#ifdef _MSC_VER
#define STBTT__NOTUSED(v) (void)(v)
#else
#define STBTT__NOTUSED(v) (void)sizeof(v)
#endif
#if 0
struct stbtt_pack_context {
void *user_allocator_context;
void *pack_info;
int width;
int height;
unsigned char *pixels;
};
////////////////////////////////////////////////////////////////////////////////////
// //
// //
// COMPILER WARNING ?!?!? //
// //
// //
// if you get a compile warning due to these symbols being defined more than //
// once, move #include "stb_rect_pack.h" before #include "stb_truetype.h" //
// //
////////////////////////////////////////////////////////////////////////////////////
typedef struct
{
int width,height;
int x,y,bottom_y;
} stbrp_context;
typedef struct
{
unsigned char x;
} stbrp_node;
typedef struct
{
int id,w,h,x,y,was_packed;
} stbrp_rect;
static void stbrp_init_target(stbrp_context *con, int pw, int ph, stbrp_node *nodes, int num_nodes)
{
con->width = pw;
con->height = ph;
con->x = 0;
con->y = 0;
con->bottom_y = 0;
STBTT__NOTUSED(nodes);
STBTT__NOTUSED(num_nodes);
}
static void stbrp_pack_rects(stbrp_context *con, stbrp_rect *rects, int num_rects)
{
int i;
for (i=0; i < num_rects; ++i) {
if (con->x + rects[i].w > con->width) {
con->x = 0;
con->y = con->bottom_y;
}
if (con->y + rects[i].h > con->height)
break;
rects[i].x = con->x;
rects[i].y = con->y;
rects[i].was_packed = 1;
con->x += rects[i].w;
if (con->y + rects[i].h > con->bottom_y)
con->bottom_y = con->y + rects[i].h;
}
for ( ; i < num_rects; ++i)
rects[i].was_packed = 0;
}
#endif
int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, void *alloc_context)
//////////////////////////////////////////////////////////////////////////////
//
// bitmap baking
//
// This is SUPER-AWESOME (tm Ryan Gordon) packing using stb_rect_pack.h. If
// stb_rect_pack.h isn't available, it uses the BakeFontBitmap strategy.
int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, int padding, void *alloc_context)
{
stbrp_context *context = (stbrp_context *) STBTT_malloc(sizeof(*context) ,alloc_context);
int num_nodes = pw-1;
int num_nodes = pw - padding;
stbrp_node *nodes = (stbrp_node *) STBTT_malloc(sizeof(*nodes ) * num_nodes,alloc_context);
if (context == NULL || nodes == NULL) {
......@@ -2016,9 +2097,12 @@ int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int
spc->pixels = pixels;
spc->pack_info = context;
spc->nodes = nodes;
spc->padding = padding;
spc->stride_in_bytes = stride_in_bytes != 0 ? stride_in_bytes : pw;
spc->h_oversample = 1;
spc->v_oversample = 1;
stbrp_init_target(context, pw-1, ph-1, nodes, num_nodes);
stbrp_init_target(context, pw-padding, ph-padding, nodes, num_nodes);
STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
......@@ -2031,9 +2115,135 @@ void stbtt_PackEnd (stbtt_pack_context *spc)
STBTT_free(spc->pack_info, spc->user_allocator_context);
}
void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample)
{
assert(h_oversample <= STBTT_MAX_OVERSAMPLE);
assert(v_oversample <= STBTT_MAX_OVERSAMPLE);
if (h_oversample <= STBTT_MAX_OVERSAMPLE)
spc->h_oversample = h_oversample;
if (v_oversample <= STBTT_MAX_OVERSAMPLE)
spc->v_oversample = v_oversample;
}
#define STBTT__OVER_MASK (STBTT_MAX_OVERSAMPLE-1)
static void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
{
unsigned char buffer[STBTT_MAX_OVERSAMPLE];
int safe_w = w - kernel_width;
int j;
for (j=0; j < h; ++j) {
int i;
unsigned int total;
unsigned char *pixels_ahead = pixels + (kernel_width);
memset(buffer, 0, kernel_width);
total = 0;
// make kernel_width a constant in common cases so compiler can optimize out the divide
switch (kernel_width) {
case 2:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = total / 2;
}
break;
case 3:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = total / 3;
}
break;
case 4:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = total / 4;
}
break;
default:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = total / kernel_width;
}
break;
}
for (; i < w; ++i) {
assert(pixels[i] == 0);
total -= buffer[i & STBTT__OVER_MASK];
pixels[i] = total / kernel_width;
}
pixels += stride_in_bytes;
}
}
static void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
{
unsigned char buffer[STBTT_MAX_OVERSAMPLE];
int safe_h = h - kernel_width;
int j;
for (j=0; j < w; ++j) {
int i;
unsigned int total;
unsigned char *pixels_ahead = pixels + (kernel_width)*stride_in_bytes;
memset(buffer, 0, kernel_width);
total = 0;
// make kernel_width a constant in common cases so compiler can optimize out the divide
switch (kernel_width) {
case 2:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = total / 2;
}
break;
case 3:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = total / 3;
}
break;
case 4:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = total / 4;
}
break;
default:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = total / kernel_width;
}
break;
}
for (; i < h; ++i) {
assert(pixels[i*stride_in_bytes] == 0);
total -= buffer[i & STBTT__OVER_MASK];
pixels[i*stride_in_bytes] = total / kernel_width;
}
pixels += 1;
}
}
int stbtt_PackFontRanges(stbtt_pack_context *spc, unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges)
{
stbtt_fontinfo info;
float recip_h = 1.0f / spc->h_oversample;
float recip_v = 1.0f / spc->v_oversample;
float sub_x = spc->h_oversample ? recip_h : 0;
float sub_y = spc->v_oversample ? recip_v : 0;
int i,j,k,n, return_value = 1;
stbrp_context *context = (stbrp_context *) spc->pack_info;
stbrp_rect *rects;
......@@ -2062,9 +2272,13 @@ int stbtt_PackFontRanges(stbtt_pack_context *spc, unsigned char *fontdata, int f
float scale = stbtt_ScaleForPixelHeight(&info, fh);
for (j=0; j < ranges[i].num_chars_in_range; ++j) {
int x0,y0,x1,y1;
stbtt_GetCodepointBitmapBox(&info, ranges[i].first_unicode_char_in_range + j, scale,scale, &x0,&y0,&x1,&y1);
rects[k].w = x1-x0+1;
rects[k].h = y1-y0+1;
stbtt_GetCodepointBitmapBoxSubpixel(&info, ranges[i].first_unicode_char_in_range + j,
scale * spc->h_oversample,
scale * spc->v_oversample,
0,0,
&x0,&y0,&x1,&y1);
rects[k].w = x1-x0 + spc->padding + spc->h_oversample-1;
rects[k].h = y1-y0 + spc->padding + spc->v_oversample-1;
++k;
}
}
......@@ -2079,26 +2293,49 @@ int stbtt_PackFontRanges(stbtt_pack_context *spc, unsigned char *fontdata, int f
for (j=0; j < ranges[i].num_chars_in_range; ++j) {
stbrp_rect *r = &rects[k];
if (r->was_packed) {
stbtt_bakedchar *bc = &ranges[i].chardata_for_range[j];
stbtt_packedchar *bc = &ranges[i].chardata_for_range[j];
int advance, lsb, x0,y0,x1,y1;
int glyph = stbtt_FindGlyphIndex(&info, ranges[i].first_unicode_char_in_range + j);
// pad on left and top
r->x += spc->padding;
r->y += spc->padding;
r->w -= spc->padding;
r->h -= spc->padding;
stbtt_GetGlyphHMetrics(&info, glyph, &advance, &lsb);
stbtt_GetGlyphBitmapBox(&info, glyph, scale,scale, &x0,&y0,&x1,&y1);
stbtt_GetGlyphBitmapBox(&info, glyph,
scale * spc->h_oversample,
scale * spc->v_oversample,
&x0,&y0,&x1,&y1);
stbtt_MakeGlyphBitmapSubpixel(&info,
spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w-1, r->h-1,
r->w - spc->h_oversample+1,
r->h - spc->v_oversample+1,
spc->stride_in_bytes,
scale,scale,
0.0f, 0.0f,
scale * spc->h_oversample,
scale * spc->v_oversample,
0,0,
glyph);
if (spc->h_oversample > 1)
stbtt__h_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w, r->h, spc->stride_in_bytes,
spc->h_oversample);
if (spc->v_oversample > 1)
stbtt__v_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w, r->h, spc->stride_in_bytes,
spc->v_oversample);
bc->x0 = (stbtt_int16) r->x;
bc->y0 = (stbtt_int16) r->y;
bc->x1 = (stbtt_int16) (r->x + r->w-1);
bc->y1 = (stbtt_int16) (r->y + r->h-1);
bc->x1 = (stbtt_int16) (r->x + r->w);
bc->y1 = (stbtt_int16) (r->y + r->h);
bc->xadvance = scale * advance;
bc->xoff = (float) x0;
bc->yoff = (float) y0;
bc->xoff = (float) x0 * recip_h + sub_x;
bc->yoff = (float) y0 * recip_v + sub_y;
bc->xoff2 = (x0 + r->w) * recip_h + sub_x;
bc->yoff2 = (y0 + r->h) * recip_v + sub_y;
} else {
return_value = 0; // if any fail, report failure
}
......@@ -2111,7 +2348,7 @@ int stbtt_PackFontRanges(stbtt_pack_context *spc, unsigned char *fontdata, int f
}
int stbtt_PackFontRange(stbtt_pack_context *spc, unsigned char *fontdata, int font_index, float font_size,
int first_unicode_char_in_range, int num_chars_in_range, stbtt_bakedchar *chardata_for_range)
int first_unicode_char_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range)
{
stbtt_pack_range range;
range.first_unicode_char_in_range = first_unicode_char_in_range;
......@@ -2121,6 +2358,34 @@ int stbtt_PackFontRange(stbtt_pack_context *spc, unsigned char *fontdata, int fo
return stbtt_PackFontRanges(spc, fontdata, font_index, &range, 1);
}
void stbtt_GetPackedQuad(stbtt_packedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int align_to_integer)
{
float ipw = 1.0f / pw, iph = 1.0f / ph;
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);
q->x0 = x;
q->y0 = y;
q->x1 = x + b->xoff2 - b->xoff;
q->y1 = y + b->yoff2 - b->yoff;
} else {
q->x0 = *xpos + b->xoff;
q->y0 = *ypos + b->yoff;
q->x1 = *xpos + b->xoff2;
q->y1 = *ypos + b->yoff2;
}
q->s0 = b->x0 * ipw;
q->t0 = b->y0 * iph;
q->s1 = b->x1 * ipw;
q->t1 = b->y1 * iph;
*xpos += b->xadvance;
}
//////////////////////////////////////////////////////////////////////////////
//
// font name matching -- recommended not to use this
......
tests/image_test.dsp
浏览文件 @ f03e3520
......@@ -41,7 +41,7 @@ RSC=rc.exe
# PROP Intermediate_Dir "Release"
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /W3 /GX /O2 /I ".." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG"
BSC32=bscmake.exe
......
tests/oversample/main.c 0 → 100644
浏览文件 @ f03e3520
#pragma warning(disable:4244; disable:4305; disable:4018)
#include <assert.h>
#include <ctype.h>
#define STB_DEFINE
#define STB_WINMAIN
#define STB_NO_REGISTRY
#include "stb_wingraph.h"
#include "stb.h"
#define STB_TRUETYPE_IMPLEMENTATION
#define STB_RECT_PACK_IMPLEMENTATION
#include "stb_rect_pack.h"
#include "stb_truetype.h"
#ifndef WINGDIAPI
#define CALLBACK __stdcall
#define WINGDIAPI __declspec(dllimport)
#define APIENTRY __stdcall
#endif
#include <gl/gl.h>
#include <gl/glu.h>
#define SIZE_X 1024
#define SIZE_Y 768
stbtt_packedchar chardata[3][128];
int sx=SIZE_X, sy=SIZE_Y;
#define BITMAP_W 512
#define BITMAP_H 512
unsigned char temp_bitmap[BITMAP_W][BITMAP_H];
unsigned char ttf_buffer[1 << 25];
GLuint font_tex;
void load_fonts(void)
{
stbtt_pack_context pc;
FILE *f = fopen("c:/windows/fonts/times.ttf", "rb");
if (!f) exit(0);
fread(ttf_buffer, 1, 1<<25, f);
stbtt_PackBegin(&pc, temp_bitmap[0], BITMAP_W, BITMAP_H, 0, 1, NULL);
stbtt_PackFontRange(&pc, ttf_buffer, 0, 24.0, 32, 95, chardata[0]+32);
stbtt_PackSetOversampling(&pc, 2, 2);
stbtt_PackFontRange(&pc, ttf_buffer, 0, 24.0, 32, 95, chardata[1]+32);
stbtt_PackSetOversampling(&pc, 3, 1);
stbtt_PackFontRange(&pc, ttf_buffer, 0, 24.0, 32, 95, chardata[2]+32);
stbtt_PackEnd(&pc);
glGenTextures(1, &font_tex);
glBindTexture(GL_TEXTURE_2D, font_tex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, BITMAP_W, BITMAP_H, 0, GL_ALPHA, GL_UNSIGNED_BYTE, temp_bitmap);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
void draw_init(void)
{
glDisable(GL_CULL_FACE);
glDisable(GL_TEXTURE_2D);
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
glViewport(0,0,sx,sy);
glClearColor(0,0,0,0);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0,sx,sy,0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void drawBoxTC(float x0, float y0, float x1, float y1, float s0, float t0, float s1, float t1)
{
glTexCoord2f(s0,t0); glVertex2f(x0,y0);
glTexCoord2f(s1,t0); glVertex2f(x1,y0);
glTexCoord2f(s1,t1); glVertex2f(x1,y1);
glTexCoord2f(s0,t1); glVertex2f(x0,y1);
}
int integer_align;
void print(float x, float y, int font, char *text)
{
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, font_tex);
glBegin(GL_QUADS);
while (*text) {
stbtt_aligned_quad q;
stbtt_GetPackedQuad(chardata[font], BITMAP_W, BITMAP_H, *text++, &x, &y, &q, font ? 0 : integer_align);
drawBoxTC(q.x0,q.y0,q.x1,q.y1, q.s0,q.t0,q.s1,q.t1);
}
glEnd();
}
int font=0;
int translating;
int rotating=0;
float rotate_t, translate_t;
int show_tex;
void draw_world(void)
{
float x = 20;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor3f(1,1,1);
if (font==1)
print(100, 50, font, "2x2 oversampled text at 1:1");
else if (font == 2)
print(100, 50, font, "3x1 oversampled text at 1:1");
else if (integer_align)
print(100, 50, font, "1:1 text, one texel = one pixel, snapped to integer coordinates");
else
print(100, 50, font, "1:1 text, one texel = one pixel");
print(100, 80, font, "O: toggle oversampling");
print(100,105, font, "T: toggle translation");
print(100,130, font, "R: toggle rotation");
print(100,155, font, "P: toggle pixel-snap (only non-oversampled)");
print(100,180, font, "V: view font texture");
if (show_tex) {
glBegin(GL_QUADS);
drawBoxTC(200,200, 200+BITMAP_W,200+BITMAP_H, 0,0,1,1);
glEnd();
} else {
glMatrixMode(GL_MODELVIEW);
glTranslatef(200,250,0);
if (translating)
x += fmod(translate_t*8,30);
if (rotating) {
glTranslatef(100,150,0);
glRotatef(rotate_t*2,0,0,1);
glTranslatef(-100,-150,0);
}
print(x,100, font, "This is a test");
print(x,130, font, "Now is the time for all good men to come to the aid of their country.");
print(x,160, font, "The quick brown fox jumps over the lazy dog.");
print(x,190, font, "0123456789");
}
}
void draw(void)
{
draw_init();
draw_world();
stbwingraph_SwapBuffers(NULL);
}
static int initialized=0;
static float last_dt;
int move[4];
int raw_mouse_x, raw_mouse_y;
int loopmode(float dt, int real, int in_client)
{
float actual_dt = dt;
if (!initialized) return 0;
rotate_t += dt;
translate_t += dt;
// music_sim();
if (!real)
return 0;
if (dt > 0.25) dt = 0.25;
if (dt < 0.01) dt = 0.01;
draw();
return 0;
}
int winproc(void *data, stbwingraph_event *e)
{
switch (e->type) {
case STBWGE_create:
break;
case STBWGE_char:
switch(e->key) {
case 27:
stbwingraph_ShowCursor(NULL,1);
return STBWINGRAPH_winproc_exit;
break;
case 'o': case 'O':
font = (font+1) % 3;
break;
case 't': case 'T':
translating = !translating;
translate_t = 0;
break;
case 'r': case 'R':
rotating = !rotating;
rotate_t = 0;
break;
case 'p': case 'P':
integer_align = !integer_align;
break;
case 'v': case 'V':
show_tex = !show_tex;
break;
}
break;
case STBWGE_mousemove:
raw_mouse_x = e->mx;
raw_mouse_y = e->my;
break;
#if 0
case STBWGE_mousewheel: do_mouse(e,0,0); break;
case STBWGE_leftdown: do_mouse(e, 1,0); break;
case STBWGE_leftup: do_mouse(e,-1,0); break;
case STBWGE_rightdown: do_mouse(e,0, 1); break;
case STBWGE_rightup: do_mouse(e,0,-1); break;
#endif
case STBWGE_keydown:
if (e->key == VK_RIGHT) move[0] = 1;
if (e->key == VK_LEFT) move[1] = 1;
if (e->key == VK_UP) move[2] = 1;
if (e->key == VK_DOWN) move[3] = 1;
break;
case STBWGE_keyup:
if (e->key == VK_RIGHT) move[0] = 0;
if (e->key == VK_LEFT) move[1] = 0;
if (e->key == VK_UP) move[2] = 0;
if (e->key == VK_DOWN) move[3] = 0;
break;
case STBWGE_size:
sx = e->width;
sy = e->height;
loopmode(0,1,0);
break;
case STBWGE_draw:
if (initialized)
loopmode(0,1,0);
break;
default:
return STBWINGRAPH_unprocessed;
}
return 0;
}
void stbwingraph_main(void)
{
stbwingraph_Priority(2);
stbwingraph_CreateWindow(1, winproc, NULL, "tt", SIZE_X,SIZE_Y, 0, 1, 0, 0);
stbwingraph_ShowCursor(NULL, 0);
load_fonts();
initialized = 1;
stbwingraph_MainLoop(loopmode, 0.016f); // 30 fps = 0.33
}
tests/oversample/oversample.dsp 0 → 100644
浏览文件 @ f03e3520
# Microsoft Developer Studio Project File - Name="oversample" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Application" 0x0101
CFG=oversample - Win32 Debug
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
!MESSAGE use the Export Makefile command and run
!MESSAGE
!MESSAGE NMAKE /f "oversample.mak".
!MESSAGE
!MESSAGE You can specify a configuration when running NMAKE
!MESSAGE by defining the macro CFG on the command line. For example:
!MESSAGE
!MESSAGE NMAKE /f "oversample.mak" CFG="oversample - Win32 Debug"
!MESSAGE
!MESSAGE Possible choices for configuration are:
!MESSAGE
!MESSAGE "oversample - Win32 Release" (based on "Win32 (x86) Application")
!MESSAGE "oversample - Win32 Debug" (based on "Win32 (x86) Application")
!MESSAGE
# Begin Project
# PROP AllowPerConfigDependencies 0
# PROP Scc_ProjName ""
# PROP Scc_LocalPath ""
CPP=cl.exe
MTL=midl.exe
RSC=rc.exe
!IF "$(CFG)" == "oversample - Win32 Release"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "Release"
# PROP BASE Intermediate_Dir "Release"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 0
# PROP Output_Dir "Release"
# PROP Intermediate_Dir "Release"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /W3 /WX /GX /O2 /I "c:\sean\prj\stb" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /FD /c
# SUBTRACT CPP /YX
# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386
# SUBTRACT LINK32 /map /debug
!ELSEIF "$(CFG)" == "oversample - Win32 Debug"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 1
# PROP BASE Output_Dir "Debug"
# PROP BASE Intermediate_Dir "Debug"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 1
# PROP Output_Dir "Debug"
# PROP Intermediate_Dir "Debug"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /YX /FD /GZ /c
# ADD CPP /nologo /W3 /WX /Gm /GX /Zi /Od /I "c:\sean\prj\stb" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /FD /GZ /c
# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
# ADD BASE RSC /l 0x409 /d "_DEBUG"
# ADD RSC /l 0x409 /d "_DEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /pdbtype:sept
# ADD LINK32 kernel32.lib user32.lib gdi32.lib advapi32.lib winspool.lib comdlg32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /incremental:no /debug /machine:I386 /pdbtype:sept
!ENDIF
# Begin Target
# Name "oversample - Win32 Release"
# Name "oversample - Win32 Debug"
# Begin Source File
SOURCE=.\main.c
# End Source File
# End Target
# End Project
tests/oversample/oversample.dsw 0 → 100644
浏览文件 @ f03e3520
Microsoft Developer Studio Workspace File, Format Version 6.00
# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
###############################################################################
Project: "oversample"=.\oversample.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
}}}
###############################################################################
Global:
Package=<5>
{{{
}}}
Package=<3>
{{{
}}}
###############################################################################
tests/oversample/stb_wingraph.h 0 → 100644
浏览文件 @ f03e3520
此差异已折叠。
tests/stb.dsp
浏览文件 @ f03e3520
......@@ -42,7 +42,7 @@ RSC=rc.exe
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /G6 /MT /W3 /GX /Z7 /O2 /Ob2 /I ".." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /D "MAIN_TEST" /FD /c
# ADD CPP /nologo /G6 /MT /W3 /GX /Z7 /O2 /Ob2 /I ".." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /D "TT_TEST" /FD /c
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG"
BSC32=bscmake.exe
......
tests/stb_cpp.dsp
浏览文件 @ f03e3520
......@@ -41,7 +41,7 @@ RSC=rc.exe
# PROP Intermediate_Dir "Release"
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /W3 /GX /O2 /I ".." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /MT /W3 /GX /O2 /I ".." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG"
BSC32=bscmake.exe
......
tests/stretch_test.dsp
浏览文件 @ f03e3520
......@@ -41,7 +41,7 @@ RSC=rc.exe
# PROP Intermediate_Dir "Release"
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /W3 /GX /O2 /I "..\.." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /W3 /GX /O2 /I "..\.." /I ".." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /D "TT_TEST" /YX /FD /c
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG"
BSC32=bscmake.exe
......@@ -63,8 +63,8 @@ LINK32=link.exe
# PROP Output_Dir "Debug"
# PROP Intermediate_Dir "Debug\stretch_test"
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /I ".." /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /I ".." /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
# ADD BASE RSC /l 0x409 /d "_DEBUG"
# ADD RSC /l 0x409 /d "_DEBUG"
BSC32=bscmake.exe
......
tests/test_truetype.c
浏览文件 @ f03e3520
......@@ -20,9 +20,10 @@ void debug(void)
}
#define BITMAP_W 256
#define BITMAP_H 400
#define BITMAP_H 512
unsigned char temp_bitmap[BITMAP_H][BITMAP_W];
stbtt_bakedchar cdata[256*2]; // ASCII 32..126 is 95 glyphs
stbtt_packedchar pdata[256*2];
int main(int argc, char **argv)
{
stbtt_fontinfo font;
......@@ -37,13 +38,11 @@ int main(int argc, char **argv)
stbtt_BakeFontBitmap(ttf_buffer,stbtt_GetFontOffsetForIndex(ttf_buffer,0), 40.0, temp_bitmap[0],BITMAP_W,BITMAP_H, 32,96, cdata); // no guarantee this fits!
stbi_write_png("fonttest1.png", BITMAP_W, BITMAP_H, 1, temp_bitmap, 0);
stbtt_BakeFontBitmap(ttf_buffer,stbtt_GetFontOffsetForIndex(ttf_buffer,0), 40.0, temp_bitmap[0],BITMAP_W,BITMAP_H, 32,96, cdata); // no guarantee this fits!
{
stbtt_pack_context pc;
stbtt_PackBegin(&pc, temp_bitmap[0], BITMAP_W, BITMAP_H, 0, NULL);
stbtt_PackFontRange(&pc, ttf_buffer, 0, 40.0, 32, 95, cdata);
stbtt_PackFontRange(&pc, ttf_buffer, 0, 40.0, 0xa0, 0x100-0xa0, cdata);
stbtt_PackBegin(&pc, temp_bitmap[0], BITMAP_W, BITMAP_H, 0, 1, NULL);
stbtt_PackFontRange(&pc, ttf_buffer, 0, 20.0, 32, 95, pdata);
stbtt_PackFontRange(&pc, ttf_buffer, 0, 20.0, 0xa0, 0x100-0xa0, pdata);
stbtt_PackEnd(&pc);
stbi_write_png("fonttest2.png", BITMAP_W, BITMAP_H, 1, temp_bitmap, 0);
}
......@@ -51,17 +50,18 @@ int main(int argc, char **argv)
{
stbtt_pack_context pc;
stbtt_pack_range pr[2];
stbtt_PackBegin(&pc, temp_bitmap[0], BITMAP_W, BITMAP_H, 0, NULL);
stbtt_PackBegin(&pc, temp_bitmap[0], BITMAP_W, BITMAP_H, 0, 1, NULL);
pr[0].chardata_for_range = cdata;
pr[0].chardata_for_range = pdata;
pr[0].first_unicode_char_in_range = 32;
pr[0].num_chars_in_range = 95;
pr[0].font_size = 40.0;
pr[1].chardata_for_range = cdata+256;
pr[0].font_size = 20.0f;
pr[1].chardata_for_range = pdata+256;
pr[1].first_unicode_char_in_range = 0xa0;
pr[1].num_chars_in_range = 0x100 - 0xa0;
pr[1].font_size = 40.0;
pr[1].font_size = 20.0f;
stbtt_PackSetOversampling(&pc, 2, 2);
stbtt_PackFontRanges(&pc, ttf_buffer, 0, pr, 2);
stbtt_PackEnd(&pc);
stbi_write_png("fonttest3.png", BITMAP_W, BITMAP_H, 1, temp_bitmap, 0);
......
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