# HG changeset patch
# User John Tsiombikas <nuclear@siggraph.org>
# Date 1288072149 -10800
# Node ID 87b6a11c920b215768949c5e49191b45d560292b
# Parent  03022062c46417782a6e3f24296624ec53a3f754
added gui stuff

diff -r 03022062c464 -r 87b6a11c920b src/gui.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui.cc	Tue Oct 26 08:49:09 2010 +0300
@@ -0,0 +1,295 @@
+#include <stdio.h>
+
+#ifndef __APPLE__
+#include <GL/glut.h>
+#else
+#include <GLUT/glut.h>
+#endif
+
+#include <vmath.h>
+#include <ubertk.h>
+#include "gui.h"
+#include "utktext.h"
+#include "sdr.h"
+
+#define TEXT_PT_SIZE	18
+
+void huecb(utk::Event *ev, void *cls);
+static void cbfunc(utk::Event *ev, void *cls);
+
+void utk_color(int r, int g, int b, int a);
+void utk_clip(int x1, int y1, int x2, int y2);
+void utk_image(int x, int y, const void *pix, int xsz, int ysz);
+
+void utk_rect(int x1, int y1, int x2, int y2);
+void utk_line(int x1, int y1, int x2, int y2, int width);
+
+void utk_text(int x, int y, const char *txt, int sz);
+int utk_text_spacing();
+int utk_text_width(const char *txt, int sz);
+
+
+int xsz, ysz;
+static utk::Container *utkroot;
+static float max_descent;
+utk::Window *win_seed, *win_material;
+
+
+extern unsigned int sdr;
+extern Vector4 seed;
+extern int iter;
+extern float err_thres;
+extern float reflectivity;
+extern Vector3 color;
+
+int gui_init(int width, int height)
+{
+	xsz = width;
+	ysz = height;
+
+	if(!CreateFont("georgia.ttf", TEXT_PT_SIZE)) {
+		fprintf(stderr, "failed to load font\n");
+		return -1;
+	}
+	max_descent = GetMaxDescent();
+
+	utk::gfx::color = utk_color;
+	utk::gfx::clip = utk_clip;
+	utk::gfx::image = utk_image;
+	utk::gfx::rect = utk_rect;
+	utk::gfx::line = utk_line;
+	utk::gfx::text = utk_text;
+	utk::gfx::text_spacing = utk_text_spacing;
+	utk::gfx::text_width = utk_text_width;
+
+	utkroot = utk::init(xsz, ysz);
+
+	win_seed = utk::create_window(utkroot, 5, 25, 220, 175, "julia parameters");
+	win_seed->set_alpha(128);
+	win_seed->show();
+
+	utk::VBox *vbox = utk::create_vbox(win_seed);
+	utk::HBox *hbox;
+
+	hbox = utk::create_hbox(vbox);
+	utk::create_label(hbox, "seed x");
+	utk::create_slider(hbox, -1.0, 1.0, cbfunc, (void*)0)->set_value(seed.x);
+	hbox = utk::create_hbox(vbox);
+	utk::create_label(hbox, "seed y");
+	utk::create_slider(hbox, -1.0, 1.0, cbfunc, (void*)1)->set_value(seed.y);
+	hbox = utk::create_hbox(vbox);
+	utk::create_label(hbox, "seed z");
+	utk::create_slider(hbox, -1.0, 1.0, cbfunc, (void*)2)->set_value(seed.z);
+	hbox = utk::create_hbox(vbox);
+	utk::create_label(hbox, "seed w");
+	utk::create_slider(hbox, -1.0, 1.0, cbfunc, (void*)3)->set_value(seed.w);
+
+	hbox = utk::create_hbox(vbox);
+	utk::create_label(hbox, "iterations");
+	utk::Slider *iter_slider = utk::create_slider(hbox, 0, 32, cbfunc, (void*)5);
+	iter_slider->set_value(iter);
+	iter_slider->set_vis_decimal(0);
+
+	hbox = utk::create_hbox(vbox);
+	utk::create_label(hbox, "max error");
+	utk::Slider *err_slider = utk::create_slider(hbox, 0, 0.075, cbfunc, (void*)6);
+	err_slider->set_value(err_thres);
+	err_slider->set_vis_decimal(4);
+
+	win_material = utk::create_window(utkroot, 250, 25, 220, 210, "material");
+	win_material->set_alpha(128);
+	win_material->show();
+	((utk::WinFrame*)win_material->get_parent())->set_shade(true);
+
+	vbox = utk::create_vbox(win_material);
+
+	utk::ColorBox *colbox = new utk::ColorBox;
+	vbox->add_child(colbox);
+	utk::HueBox *huebox = new utk::HueBox;
+	vbox->add_child(huebox);
+	huebox->set_callback(utk::EVENT_MODIFY, huecb, colbox);
+
+	float hue, sat, val;
+	utk::rgb_to_hsv(color.x, color.y, color.z, &hue, &sat, &val);
+	colbox->set_color_hsv(hue, sat, val);
+	huebox->set_h(hue);
+
+	hbox = utk::create_hbox(vbox);
+	utk::create_label(hbox, "reflectivity");
+	utk::create_slider(hbox, 0, 1.0, cbfunc, (void*)4)->set_value(reflectivity);
+
+	return 0;
+}
+
+void gui_draw()
+{
+	glMatrixMode(GL_MODELVIEW);
+	glPushMatrix();
+	glLoadIdentity();
+	glMatrixMode(GL_PROJECTION);
+	glPushMatrix();
+	glLoadIdentity();
+
+	glPushAttrib(GL_ENABLE_BIT);
+	glDisable(GL_LIGHTING);
+	glDisable(GL_DEPTH_TEST);
+	glDisable(GL_CULL_FACE);
+	glEnable(GL_BLEND);
+
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+	utk::draw();
+
+	glPopAttrib();
+
+	glMatrixMode(GL_PROJECTION);
+	glPopMatrix();
+	glMatrixMode(GL_MODELVIEW);
+	glPopMatrix();
+}
+
+void gui_set_visible(bool vis)
+{
+	if(vis) {
+		win_seed->show();
+		win_material->show();
+	} else {
+		win_seed->hide();
+		win_material->hide();
+	}
+}
+
+void huecb(utk::Event *ev, void *cls)
+{
+	utk::HueBox *huebox = (utk::HueBox*)ev->widget;
+	utk::ColorBox *colbox = (utk::ColorBox*)cls;
+
+	colbox->set_h(huebox->get_h());
+}
+
+void cbfunc(utk::Event *ev, void *cls)
+{
+	int id = (int)(intptr_t)cls;
+
+	switch(id) {
+	case 0:
+	case 1:
+	case 2:
+	case 3:
+		{
+			utk::Slider *slider = (utk::Slider*)ev->widget;
+
+			seed[id] = slider->get_value();
+			set_uniform_float4(sdr, "seed", seed.x, seed.y, seed.z, seed.w);
+			glutPostRedisplay();
+		}
+		break;
+
+	case 4:
+		{
+			utk::Slider *slider = (utk::Slider*)ev->widget;
+
+			reflectivity = slider->get_value();
+			set_uniform_float(sdr, "reflectivity", reflectivity);
+			glutPostRedisplay();
+		}
+		break;
+
+	case 5:
+		{
+			utk::Slider *slider = (utk::Slider*)ev->widget;
+
+			iter = (int)slider->get_value();
+			set_uniform_int(sdr, "iter", iter);
+			glutPostRedisplay();
+		}
+		break;
+
+	case 6:
+		{
+			utk::Slider *slider = (utk::Slider*)ev->widget;
+
+			err_thres = slider->get_value();
+			set_uniform_float(sdr, "err_thres", err_thres);
+			glutPostRedisplay();
+		}
+		break;
+
+	default:
+		fprintf(stderr, "unhandled callback (id: %d)\n", id);
+		break;
+	}
+}
+
+
+#define CONVX(x)	(2.0 * (float)(x) / (float)xsz - 1.0)
+#define CONVY(y)	(1.0 - 2.0 * (float)(y) / (float)ysz)
+
+void utk_color(int r, int g, int b, int a)
+{
+	glColor4ub(r, g, b, a);
+	SetTextColor(Color(r / 255.0, g / 255.0, b / 255.0, a / 255.0));
+}
+
+void utk_clip(int x1, int y1, int x2, int y2)
+{
+	if(x1 == x2 && y1 == y2 && x1 == y1 && x1 == 0) {
+		glDisable(GL_SCISSOR_TEST);
+	} else {
+		glEnable(GL_SCISSOR_TEST);
+	}
+	glScissor(x1, ysz - y2, x2 - x1, y2 - y1);
+}
+
+void utk_image(int x, int y, const void *pix, int w, int h)
+{
+	glPixelZoom(1, -1);
+	glRasterPos2f(CONVX(x), CONVY(y));
+	glDrawPixels(w, h, GL_BGRA, GL_UNSIGNED_BYTE, pix);
+}
+
+void utk_rect(int x1, int y1, int x2, int y2)
+{
+	glRectf(CONVX(x1), CONVY(y1), CONVX(x2), CONVY(y2));
+}
+
+void utk_line(int x1, int y1, int x2, int y2, int width)
+{
+	glPushAttrib(GL_LINE_BIT);
+
+	glLineWidth((float)width);
+	glBegin(GL_LINES);
+	glVertex2f(CONVX(x1), CONVY(y1));
+	glVertex2f(CONVX(x2), CONVY(y2));
+	glEnd();
+
+	glPopAttrib();
+}
+
+void utk_text(int x, int y, const char *txt, int sz)
+{
+	float fx = (float)x / (float)xsz;
+	float fy = (float)y / (float)ysz;
+
+	SetTextPos(Vector2(fx, fy - max_descent));
+	//SetTextPos(Vector2(0.25, 0.25));
+	SetTextSize((float)sz / (float)TEXT_PT_SIZE);
+	PrintString(txt);
+}
+
+int utk_text_spacing()
+{
+	return (int)(GetLineAdvance() * (float)ysz);
+}
+
+int utk_text_width(const char *txt, int sz)
+{
+	float prev_sz = GetTextSize();
+	SetTextSize((float)sz / (float)TEXT_PT_SIZE);
+
+	int width = (int)(GetTextWidth(txt) * (float)xsz);
+
+	SetTextSize(prev_sz);
+	return width;
+}
+
diff -r 03022062c464 -r 87b6a11c920b src/gui.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui.h	Tue Oct 26 08:49:09 2010 +0300
@@ -0,0 +1,10 @@
+#ifndef GUI_H_
+#define GUI_H_
+
+#include <ubertk.h>
+
+int gui_init(int xsz, int ysz);
+void gui_draw();
+void gui_set_visible(bool vis);
+
+#endif
diff -r 03022062c464 -r 87b6a11c920b src/utktext.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/utktext.cc	Tue Oct 26 08:49:09 2010 +0300
@@ -0,0 +1,444 @@
+#include <math.h>
+#include <ctype.h>
+#define GL_GLEXT_PROTOTYPES
+#if defined(__APPLE__) && defined(__MACH__)
+#include <GLUT/glut.h>
+#else
+#include <GL/glut.h>
+#endif
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include <vmath.h>
+#include "utktext.h"
+#include "utk_common.h"
+
+#ifndef GL_BGRA
+#define GL_BGRA	0x80E1
+#endif
+
+#ifndef GL_ABGR
+#define GL_ABGR	0x8000
+#endif
+
+#ifdef UTK_BIG_ENDIAN
+#define PIXFMT	GL_ABGR
+#else
+#define PIXFMT	GL_BGRA
+#endif
+
+#define MAX_CHARS		128
+#define MAX_IMG_WIDTH	1024
+#define SIZE_PIXELS(x)	((x) / 64)
+
+struct Font {
+	unsigned int tex_id;
+	float scale;	// this compensates if a higher res font is loaded in its stead, with a new CreateFont
+	float line_adv;	// vertical advance to go to the next line
+	struct {
+		Vector2 pos, size;		// glyph position (from origin) and size in normalized coords [0, 1]
+		float advance;			// advance in normalized coords
+		Vector2 tc_pos, tc_sz;	// tex coord box pos/size
+	} glyphs[MAX_CHARS];
+};
+
+static void BlitFontGlyph(Font *fnt, int x, int y, FT_GlyphSlot glyph, unsigned int *img, int xsz, int ysz);
+static void CleanUp();
+
+static FT_Library ft;
+static Vector2 text_pos;
+static float text_size = 1.0;
+static Color text_color;
+static Font *act_fnt;
+
+#if !defined(GLIBC) && !defined(__GLIBC__)
+float log2(float x) {
+	float res = 0.0;
+	while(x > 1.0) {
+		x /= 2.0;
+		res += 1.0;
+	}
+	return res;
+}
+#endif	// _MSC_VER
+
+
+static inline int NextPow2(int x)
+{
+	float lg2 = log2((float)x);
+	return (int)pow(2.0f, (int)ceil(lg2));
+}
+
+
+unsigned int CreateFont(const char *fname, int font_size)
+{
+	if(!ft) {
+		if(FT_Init_FreeType(&ft) != 0) {
+			fprintf(stderr, "failed to initialize freetype\n");
+			return 0;
+		}
+		atexit(CleanUp);
+	}
+
+	FT_Face face;
+	if(FT_New_Face(ft, fname, 0, &face) != 0) {
+		fprintf(stderr, "failed to load font: %s\n", fname);
+		return 0;
+	}
+
+	FT_Set_Pixel_Sizes(face, 0, font_size);
+
+	Font *fnt = new Font;
+	int max_width = MAX_CHARS * SIZE_PIXELS(face->bbox.xMax - face->bbox.xMin);
+	int foo_xsz = MAX_IMG_WIDTH;
+	int foo_ysz = SIZE_PIXELS(face->bbox.yMax - face->bbox.yMin) * max_width / foo_xsz;
+
+	int tex_xsz = NextPow2(foo_xsz);
+	int tex_ysz = NextPow2(foo_ysz);
+
+	unsigned int *img;
+	img = new unsigned int[tex_xsz * tex_ysz];
+	memset(img, 0, tex_xsz * tex_ysz * sizeof *img);
+
+	extern int xsz, ysz;
+	int vport_xsz = xsz, vport_ysz = ysz;
+
+	int max_glyph_y = 0;
+	int max_glyph_x = 0;
+	for(int i=0; i<MAX_CHARS; i++) {
+		FT_Load_Char(face, i, 0);
+		int width = SIZE_PIXELS(face->glyph->metrics.width);
+		int height = SIZE_PIXELS(face->glyph->metrics.height);
+		
+		if(height > max_glyph_y) {
+			max_glyph_y = height;
+		}
+
+		if(width > max_glyph_x) {
+			max_glyph_x = width;
+		}
+	}
+
+	int gx = 0, gy = 0;
+	for(int i=0; i<MAX_CHARS; i++) {
+		FT_Load_Char(face, i, FT_LOAD_RENDER);
+		FT_GlyphSlot g = face->glyph;
+
+		int gwidth = SIZE_PIXELS(g->metrics.width);
+		int gheight = SIZE_PIXELS(g->metrics.height);
+
+		if(gx > MAX_IMG_WIDTH - gwidth) {
+			gx = 0;
+			gy += max_glyph_y;
+		}
+
+		BlitFontGlyph(fnt, gx, gy, g, img, tex_xsz, tex_ysz);
+		fnt->scale = 1.0;
+		fnt->line_adv = (float)SIZE_PIXELS(g->metrics.vertAdvance) / (float)vport_ysz;
+		fnt->glyphs[i].tc_pos.x = (float)gx / (float)tex_xsz;
+		fnt->glyphs[i].tc_pos.y = (float)gy / (float)tex_ysz;
+		fnt->glyphs[i].tc_sz.x = (float)gwidth / (float)tex_xsz;
+		fnt->glyphs[i].tc_sz.y = (float)gheight / (float)tex_ysz;
+		fnt->glyphs[i].size.x = (float)gwidth / (float)vport_xsz;
+		fnt->glyphs[i].size.y = (float)gheight / (float)vport_ysz;
+		fnt->glyphs[i].pos.x = (float)SIZE_PIXELS(g->metrics.horiBearingX) / (float)vport_xsz;
+		fnt->glyphs[i].pos.y = -(float)SIZE_PIXELS(g->metrics.horiBearingY) / (float)vport_ysz;
+		fnt->glyphs[i].advance = (float)SIZE_PIXELS(g->metrics.horiAdvance) / (float)vport_xsz;
+
+		gx += gwidth;
+	}
+
+	FT_Done_Face(face);
+
+	glGenTextures(1, &fnt->tex_id);
+	glBindTexture(GL_TEXTURE_2D, fnt->tex_id);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexImage2D(GL_TEXTURE_2D, 0, 4, tex_xsz, tex_ysz, 0, PIXFMT, GL_UNSIGNED_BYTE, img);
+
+#ifdef DUMP_FONT_IMG
+	FILE *fp;
+	unsigned int *ptr = img;
+
+	if((fp = fopen("fnt.ppm", "wb"))) {
+		fprintf(fp, "P6\n%d %d\n255\n", tex_xsz, tex_ysz);
+
+		for(int i=0; i<tex_xsz * tex_ysz; i++) {
+			fputc((*ptr >> 24) & 0xff, fp);
+			fputc((*ptr >> 24) & 0xff, fp);
+			fputc((*ptr >> 24) & 0xff, fp);
+			ptr++;
+		}
+		fclose(fp);
+	}
+#endif
+	
+	delete [] img;
+
+	act_fnt = fnt;
+
+	return 1;
+}
+
+void DeleteFont(unsigned int fid)
+{
+}
+
+unsigned int GetFont(const char *fname, int sz)
+{
+	return 1;
+}
+
+bool BindFont(unsigned int fid)
+{
+	return true;
+}
+
+void SetTextPos(const Vector2 &pos)
+{
+	text_pos = pos;
+}
+
+Vector2 GetTextPos()
+{
+	return text_pos;
+}
+
+void TextLineAdvance(int adv)
+{
+	text_pos.y += (float)adv * act_fnt->line_adv;
+}
+
+void TextCRet()
+{
+	text_pos.x = 0.0;
+}
+
+void SetTextSize(float sz)
+{
+	text_size = sz;
+}
+
+float GetTextSize()
+{
+	return text_size;
+}
+
+void SetTextColor(const Color &col)
+{
+	text_color = col;
+}
+
+Color GetTextColor()
+{
+	return text_color;
+}
+
+static void ImOverlay(const Vector2 &v1, const Vector2 &v2, const Color &col, unsigned int tex)
+{
+	float l = v1.x * 2.0f - 1.0f;
+	float r = v2.x * 2.0f - 1.0f;
+	float u = -v1.y * 2.0f + 1.0f;
+	float d = -v2.y * 2.0f + 1.0f;
+
+	glMatrixMode(GL_PROJECTION);
+	glPushMatrix();
+	glLoadIdentity();
+	glMatrixMode(GL_MODELVIEW);
+	glPushMatrix();
+	glLoadIdentity();
+
+	glBindTexture(GL_TEXTURE_2D, tex);
+
+	glDisable(GL_DEPTH_TEST);
+	glDisable(GL_LIGHTING);
+	glDisable(GL_CULL_FACE);
+
+	glBegin(GL_QUADS);
+	glColor4f(col.r, col.g, col.b, col.a);
+	glTexCoord2f(0, 0);
+	glVertex2f(l, u);
+	glTexCoord2f(1, 0);
+	glVertex2f(r, u);
+	glTexCoord2f(1, 1);
+	glVertex2f(r, d);
+	glTexCoord2f(0, 1);
+	glVertex2f(l, d);
+	glEnd();
+
+	glEnable(GL_LIGHTING);
+	glEnable(GL_DEPTH_TEST);
+
+	glMatrixMode(GL_PROJECTION);
+	glPopMatrix();
+	glMatrixMode(GL_MODELVIEW);
+	glPopMatrix();
+}
+
+float PrintChar(char c)
+{
+	// get texture coordinates for the glyph, and construct the texture matrix
+	float tx = act_fnt->glyphs[(int)c].tc_pos.x;
+	float ty = act_fnt->glyphs[(int)c].tc_pos.y;
+	float sx = act_fnt->glyphs[(int)c].tc_sz.x;
+	float sy = act_fnt->glyphs[(int)c].tc_sz.y;
+
+	float mat[] = {
+		sx, 0, tx, 0,
+		0, sy, ty, 0,
+		0, 0, 1, 0,
+		0, 0, 0, 1
+	};
+
+	glMatrixMode(GL_TEXTURE);
+	glPushMatrix();
+	glLoadMatrixf(mat);
+
+	Vector2 pos = text_pos + act_fnt->glyphs[(int)c].pos * act_fnt->scale;
+	ImOverlay(pos, pos + act_fnt->glyphs[(int)c].size * act_fnt->scale, text_color, act_fnt->tex_id);
+
+	glMatrixMode(GL_TEXTURE);
+	glPopMatrix();
+
+	return act_fnt->glyphs[(int)c].advance * act_fnt->scale;
+}
+
+// this function contains the preamble of all block text drawing functions (i.e. not printchar above)
+static void PreDraw()
+{
+	glMatrixMode(GL_PROJECTION);
+	glPushMatrix();
+	/*glLoadTransposeMatrixf(OrthoProj(2, 2, 0, 10).m);*/
+	glLoadIdentity();
+	glMatrixMode(GL_MODELVIEW);
+	glPushMatrix();
+	glLoadIdentity();
+	glMatrixMode(GL_TEXTURE);
+	glPushMatrix();
+	glLoadIdentity();
+
+	glEnable(GL_TEXTURE_2D);
+	glBindTexture(GL_TEXTURE_2D, act_fnt->tex_id);
+
+	glBegin(GL_QUADS);
+	glColor4f(text_color.r, text_color.g, text_color.b, text_color.a);
+}
+
+static void PostDraw()
+{
+	glEnd();
+
+	glDisable(GL_TEXTURE_2D);
+
+	glMatrixMode(GL_TEXTURE);
+	glPopMatrix();
+	glMatrixMode(GL_MODELVIEW);
+	glPopMatrix();
+	glMatrixMode(GL_PROJECTION);
+	glPopMatrix();
+}
+
+float PrintString(const char *str, bool standalone)
+{
+	if(standalone) PreDraw();
+	
+	float start_x = text_pos.x;
+	while(*str) {
+		float tx = act_fnt->glyphs[(int)*str].tc_pos.x;
+		float ty = act_fnt->glyphs[(int)*str].tc_pos.y;
+		float sx = act_fnt->glyphs[(int)*str].tc_sz.x;
+		float sy = act_fnt->glyphs[(int)*str].tc_sz.y;
+
+		Vector2 tc1 = Vector2(tx, ty);
+		Vector2 tc2 = Vector2(tx + sx, ty + sy);
+
+		Vector2 v1 = text_pos + act_fnt->glyphs[(int)*str].pos * act_fnt->scale * text_size;
+		Vector2 v2 = v1 + act_fnt->glyphs[(int)*str].size * act_fnt->scale * text_size;
+		float l = v1.x * 2.0f - 1.0f;
+		float r = v2.x * 2.0f - 1.0f;
+		float u = -v1.y * 2.0f + 1.0f;
+		float d = -v2.y * 2.0f + 1.0f;
+
+		glTexCoord2f(tc1.x, tc1.y);
+		glVertex2f(l, u);
+		glTexCoord2f(tc2.x, tc1.y);
+		glVertex2f(r, u);
+		glTexCoord2f(tc2.x, tc2.y);
+		glVertex2f(r, d);
+		glTexCoord2f(tc1.x, tc2.y);
+		glVertex2f(l, d);
+
+		text_pos.x += act_fnt->glyphs[(int)*str++].advance * act_fnt->scale * text_size;
+	}
+
+	if(standalone) PostDraw();
+	return text_pos.x - start_x;
+}
+
+void PrintStringLines(const char **str, int lines)
+{
+	PreDraw();
+
+	while(lines-- > 0) {
+		PrintString(*str++, false);
+		TextLineAdvance();
+		TextCRet();
+	}
+
+	PostDraw();
+}
+
+static void BlitFontGlyph(Font *fnt, int x, int y, FT_GlyphSlot glyph, unsigned int *img, int xsz, int ysz)
+{
+	if(glyph->bitmap.pixel_mode != FT_PIXEL_MODE_GRAY) {
+		fprintf(stderr, "BlitFontGlyph: unsupported pixel mode: %d\n", glyph->bitmap.pixel_mode);
+		return;
+	}
+
+	unsigned int *dest = img + y * xsz + x;
+	unsigned char *src = glyph->bitmap.buffer;
+
+	for(int j=0; j<glyph->bitmap.rows; j++) {
+		for(int i=0; i<glyph->bitmap.width; i++) {
+			dest[i] = 0x00ffffff | ((unsigned int)src[i] << 24);
+		}
+		dest += xsz;
+		src += glyph->bitmap.pitch;
+	}
+}
+
+static void CleanUp()
+{
+	FT_Done_FreeType(ft);
+}
+
+float GetMaxDescent()
+{
+	Font *fnt = act_fnt;
+
+	float max_descent = 0.0f;
+	
+	for(int i=0; i<MAX_CHARS; i++) {
+		float des = fnt->glyphs[i].pos.y + fnt->glyphs[i].size.y;
+		if(isprint(i) && des > max_descent) {
+			max_descent = des;
+		}
+	}
+
+	return max_descent;
+}
+
+float GetLineAdvance()
+{
+	return act_fnt->line_adv;
+}
+
+float GetTextWidth(const char *str)
+{
+	float width = 0;
+	while(*str) {
+		width += act_fnt->glyphs[(int)*str++].advance * act_fnt->scale * text_size;
+	}
+	return width;
+}
diff -r 03022062c464 -r 87b6a11c920b src/utktext.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/utktext.h	Tue Oct 26 08:49:09 2010 +0300
@@ -0,0 +1,45 @@
+#ifndef TEXT_H
+#define TEXT_H
+
+#if defined(WIN32) || defined(__WIN32__)
+#include <windows.h>
+#endif
+
+#include <vmath.h>
+
+class Color {
+public:
+	float r, g, b, a;
+
+	Color() {r = g = b = a = 1.0f;}
+	Color(float r, float g, float b, float a = 1.0f) {this->r = r; this->g = g; this->b = b; this->a = a;}
+};
+
+
+unsigned int CreateFont(const char *fname, int font_size);
+void DeleteFont(unsigned int fid);
+unsigned int GetFont(const char *fname, int sz);
+bool BindFont(unsigned int fid);
+
+
+void SetTextPos(const Vector2 &pos);
+Vector2 GetTextPos();
+
+void TextLineAdvance(int adv = 1);
+void TextCRet();
+
+void SetTextSize(float sz);
+float GetTextSize();
+
+void SetTextColor(const Color &col);
+Color GetTextColor();
+
+float PrintChar(char c);
+float PrintString(const char *text, bool standalone = true);
+void PrintStringLines(const char **str, int lines);
+
+float GetMaxDescent();
+float GetLineAdvance();
+float GetTextWidth(const char *str);
+
+#endif	// TEXT_H