X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosdemo;a=blobdiff_plain;f=src%2Fscr%2Finfcubes.c;fp=src%2Fscr%2Finfcubes.c;h=dd1bd33a2b4ec83ea83b5c790c83471dab9949c6;hp=0000000000000000000000000000000000000000;hb=ba648ddfc62fc6d3f47294aa8bfc10ea6ca3f479;hpb=3398fc6c4188104048f99b650a6cb90beda9b6ed

diff --git a/src/scr/infcubes.c b/src/scr/infcubes.c
new file mode 100644
index 0000000..dd1bd33
--- /dev/null
+++ b/src/scr/infcubes.c
@@ -0,0 +1,174 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include "demo.h"
+#include "3dgfx.h"
+#include "screen.h"
+#include "cfgopt.h"
+#include "polyfill.h"
+#include "imago2.h"
+#include "gfxutil.h"
+#include "mesh.h"
+
+static int init(void);
+static void destroy(void);
+static void start(long trans_time);
+static void draw(void);
+static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,
+		float offx, float offy,	int dr, int dg, int db, int sr, int sg, int sb);
+
+static struct screen scr = {
+	"infcubes",
+	init,
+	destroy,
+	start, 0,
+	draw
+};
+
+static float cam_theta = -29, cam_phi = 35;
+static float cam_dist = 6;
+static struct pimage tex_inner, tex_outer;
+static struct g3d_mesh mesh_cube, mesh_cube2;
+
+struct screen *infcubes_screen(void)
+{
+	return &scr;
+}
+
+#define PHONG_TEX_SZ	128
+
+static int init(void)
+{
+	static const float scalemat[16] = {-6, 0, 0, 0, 0, -6, 0, 0, 0, 0, -6, 0, 0, 0, 0, 1};
+	/*
+	if(!(tex_inner.pixels = img_load_pixels("data/crate.jpg", &tex_inner.width,
+					&tex_inner.height, IMG_FMT_RGB24))) {
+		fprintf(stderr, "infcubes: failed to load crate texture\n");
+		return -1;
+	}
+	convimg_rgb24_rgb16(tex_inner.pixels, (unsigned char*)tex_inner.pixels, tex_inner.width, tex_inner.height);
+	*/
+	gen_phong_tex(&tex_inner, PHONG_TEX_SZ, PHONG_TEX_SZ, 5.0f, 0, 0, 10, 50, 92, 192, 192, 192);
+
+	if(!(tex_outer.pixels = img_load_pixels("data/refmap1.jpg", &tex_outer.width,
+					&tex_outer.height, IMG_FMT_RGB24))) {
+		fprintf(stderr, "infcubes: failed to load outer texture\n");
+		return -1;
+	}
+	convimg_rgb24_rgb16(tex_outer.pixels, (unsigned char*)tex_outer.pixels, tex_outer.width, tex_outer.height);
+	/*gen_phong_tex(&tex_outer, PHONG_TEX_SZ, PHONG_TEX_SZ, 5.0f, 50, 50, 50, 255, 255, 255);*/
+
+	/*
+	if(gen_cube_mesh(&mesh_cube, 1.0f, 3) == -1) {
+		return -1;
+	}
+	*/
+	if(load_mesh(&mesh_cube, "data/bevelbox.obj") == -1) {
+		return -1;
+	}
+	if(load_mesh(&mesh_cube2, "data/bevelbox.obj") == -1) {
+		return -1;
+	}
+	apply_mesh_xform(&mesh_cube2, scalemat);
+	normalize_mesh_normals(&mesh_cube2);
+	return 0;
+}
+
+static void destroy(void)
+{
+	img_free_pixels(tex_inner.pixels);
+}
+
+static void start(long trans_time)
+{
+	g3d_matrix_mode(G3D_PROJECTION);
+	g3d_load_identity();
+	g3d_perspective(70.0, 1.3333333, 0.5, 100.0);
+
+	g3d_enable(G3D_CULL_FACE);
+	g3d_disable(G3D_LIGHTING);
+	g3d_enable(G3D_LIGHT0);
+}
+
+static void update(void)
+{
+	mouse_orbit_update(&cam_theta, &cam_phi, &cam_dist);
+}
+
+static void draw(void)
+{
+	float t = (float)time_msec / 16.0f;
+	update();
+
+	g3d_matrix_mode(G3D_MODELVIEW);
+	g3d_load_identity();
+	g3d_translate(0, 0, -cam_dist);
+	g3d_rotate(cam_phi, 1, 0, 0);
+	g3d_rotate(cam_theta, 0, 1, 0);
+	if(opt.sball) {
+		g3d_mult_matrix(sball_matrix);
+	}
+
+	memset(fb_pixels, 0, fb_width * fb_height * 2);
+
+	g3d_polygon_mode(G3D_FLAT);
+	g3d_enable(G3D_TEXTURE_2D);
+	g3d_enable(G3D_TEXTURE_GEN);
+
+	g3d_push_matrix();
+	g3d_rotate(t, 1, 0, 0);
+	g3d_rotate(t, 0, 1, 0);
+	g3d_set_texture(tex_outer.width, tex_outer.height, tex_outer.pixels);
+	draw_mesh(&mesh_cube2);
+	g3d_pop_matrix();
+
+	g3d_set_texture(tex_inner.width, tex_inner.height, tex_inner.pixels);
+	draw_mesh(&mesh_cube);
+	g3d_disable(G3D_TEXTURE_GEN);
+
+	swap_buffers(fb_pixels);
+}
+
+static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,
+		float offx, float offy,	int dr, int dg, int db, int sr, int sg, int sb)
+{
+	int i, j;
+	float u, v, du, dv;
+	uint16_t *pix;
+
+	if(!(img->pixels = malloc(xsz * ysz * sizeof *pix))) {
+		return -1;
+	}
+	pix = img->pixels;
+
+	du = 2.0f / (float)(xsz - 1);
+	dv = 2.0f / (float)(ysz - 1);
+
+	v = -1.0f - offy;
+	for(i=0; i<ysz; i++) {
+		u = -1.0f - offx;
+		for(j=0; j<xsz; j++) {
+			float d = sqrt(u * u + v * v);
+			float val = pow(cos(d * M_PI / 2.0f), sexp);
+			int ival = abs(val * 255.0f);
+
+			int r = dr + ival * sr / 256;
+			int g = dg + ival * sg / 256;
+			int b = db + ival * sb / 256;
+
+			if(r > 255) r = 255;
+			if(g > 255) g = 255;
+			if(b > 255) b = 255;
+
+			*pix++ = PACK_RGB16(r, g, b);
+
+			u += du;
+		}
+		v += dv;
+	}
+
+	img->width = xsz;
+	img->height = ysz;
+	return 0;
+}