rayfract

diff src/imtk/imtk.c @ 10:1496aae2e7d4

- simplified build by including dependences in the source tree - added make dep tracking - added mingw cross-build rules - added readme & licence
author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 31 Jul 2023 18:58:56 +0300
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     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/imtk/imtk.c	Mon Jul 31 18:58:56 2023 +0300
     1.3 @@ -0,0 +1,70 @@
     1.4 +#include <stdio.h>
     1.5 +#include <stdlib.h>
     1.6 +#include <string.h>
     1.7 +#include <ctype.h>
     1.8 +#include <assert.h>
     1.9 +#ifndef __APPLE__
    1.10 +#include <GL/glut.h>
    1.11 +#else
    1.12 +#include <GLUT/glut.h>
    1.13 +#endif
    1.14 +#include "imtk.h"
    1.15 +#include "state.h"
    1.16 +#include "draw.h"
    1.17 +
    1.18 +void imtk_post_redisplay(void)
    1.19 +{
    1.20 +	glutPostRedisplay();
    1.21 +}
    1.22 +
    1.23 +void imtk_begin(void)
    1.24 +{
    1.25 +	int width, height;
    1.26 +
    1.27 +	glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
    1.28 +
    1.29 +	glDisable(GL_DEPTH_TEST);
    1.30 +	glDisable(GL_STENCIL_TEST);
    1.31 +	glDisable(GL_ALPHA_TEST);
    1.32 +	glDisable(GL_TEXTURE_1D);
    1.33 +	glDisable(GL_TEXTURE_2D);
    1.34 +	glDisable(GL_CULL_FACE);
    1.35 +	glDisable(GL_SCISSOR_TEST);
    1.36 +	glDisable(GL_LIGHTING);
    1.37 +	glEnable(GL_BLEND);
    1.38 +	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    1.39 +
    1.40 +
    1.41 +	imtk_get_viewport(&width, &height);
    1.42 +
    1.43 +	glMatrixMode(GL_PROJECTION);
    1.44 +	glPushMatrix();
    1.45 +	glLoadIdentity();
    1.46 +	glTranslatef(-1, 1, 0);
    1.47 +	glScalef(2.0 / width, -2.0 / height, 1.0);
    1.48 +
    1.49 +	glMatrixMode(GL_MODELVIEW);
    1.50 +	glPushMatrix();
    1.51 +	glLoadIdentity();
    1.52 +}
    1.53 +
    1.54 +void imtk_end(void)
    1.55 +{
    1.56 +	glMatrixMode(GL_PROJECTION);
    1.57 +	glPopMatrix();
    1.58 +	glMatrixMode(GL_MODELVIEW);
    1.59 +	glPopMatrix();
    1.60 +
    1.61 +	glPopAttrib();
    1.62 +}
    1.63 +
    1.64 +void imtk_label(const char *str, int x, int y)
    1.65 +{
    1.66 +	if(x == IMTK_AUTO || y == IMTK_AUTO) {
    1.67 +		imtk_layout_get_pos(&x, &y);
    1.68 +	}
    1.69 +
    1.70 +	glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
    1.71 +	imtk_draw_string(x, y + 14, str);
    1.72 +	imtk_layout_advance(imtk_string_size(str), 12);
    1.73 +}