- separated mesh algorithms in mesh.h/mesh.c

[dosdemo] / src / infcubes.c

diff --git a/src/infcubes.c b/src/infcubes.c
index 5fe7df9..cfa665b 100644 (file)
--- a/src/infcubes.c
+++ b/src/infcubes.c
@@ -1,15 +1,19 @@
 #include <stdio.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"
 
 static int init(void);
 static void destroy(void);
 static void start(long trans_time);
 static void draw(void);
-static void draw_cube(void);
+static void draw_cube(float sz);
 
 static struct screen scr = {
        "infcubes",
@@ -19,8 +23,9 @@ static struct screen scr = {
        draw
 };
 
-static float cam_theta, cam_phi;
+static float cam_theta = -29, cam_phi = 35;
 static float cam_dist = 5;
+static struct pimage tex_crate;
 
 struct screen *infcubes_screen(void)
 {
@@ -30,11 +35,31 @@ struct screen *infcubes_screen(void)
 
 static int init(void)
 {
+       int i, npixels;
+       unsigned char *src;
+       uint16_t *dst;
+
+       if(!(tex_crate.pixels = img_load_pixels("data/crate.jpg", &tex_crate.width,
+                                       &tex_crate.height, IMG_FMT_RGB24))) {
+               fprintf(stderr, "infcubes: failed to load crate texture\n");
+               return -1;
+       }
+
+       npixels = tex_crate.width * tex_crate.height;
+       src = (unsigned char*)tex_crate.pixels;
+       dst = tex_crate.pixels;
+       for(i=0; i<npixels; i++) {
+               int r = *src++;
+               int g = *src++;
+               int b = *src++;
+               *dst++ = PACK_RGB16(r, g, b);
+       }
        return 0;
 }
 
 static void destroy(void)
 {
+       img_free_pixels(tex_crate.pixels);
 }
 
 static void start(long trans_time)
@@ -43,8 +68,11 @@ static void start(long trans_time)
        g3d_load_identity();
        g3d_perspective(50.0, 1.3333333, 0.5, 100.0);
 
-       g3d_enable(G3D_LIGHTING);
+       g3d_enable(G3D_CULL_FACE);
+       g3d_disable(G3D_LIGHTING);
        g3d_enable(G3D_LIGHT0);
+
+       g3d_set_texture(tex_crate.width, tex_crate.height, tex_crate.pixels);
 }
 
 static void update(void)
@@ -67,43 +95,54 @@ static void draw(void)
 
        memset(fb_pixels, 0, fb_width * fb_height * 2);
 
-       draw_cube();
+       g3d_polygon_mode(G3D_FLAT);
+       draw_cube(-6);
+
+       g3d_polygon_mode(G3D_TEX);
+       draw_cube(1);
 
        swap_buffers(fb_pixels);
 }
 
-static void draw_cube(void)
+static void draw_cube(float sz)
 {
+       float hsz = sz * 0.5f;
        g3d_begin(G3D_QUADS);
+       g3d_color3b(255, 0, 0);
        g3d_normal(0, 0, 1);
-       g3d_vertex(-1, -1, 1);
-       g3d_vertex(1, -1, 1);
-       g3d_vertex(1, 1, 1);
-       g3d_vertex(-1, 1, 1);
+       g3d_texcoord(0, 0); g3d_vertex(-hsz, -hsz, hsz);
+       g3d_texcoord(1, 0); g3d_vertex(hsz, -hsz, hsz);
+       g3d_texcoord(1, 1); g3d_vertex(hsz, hsz, hsz);
+       g3d_texcoord(0, 1); g3d_vertex(-hsz, hsz, hsz);
+       g3d_color3b(0, 255, 0);
        g3d_normal(1, 0, 0);
-       g3d_vertex(1, -1, 1);
-       g3d_vertex(1, -1, -1);
-       g3d_vertex(1, 1, -1);
-       g3d_vertex(1, 1, 1);
+       g3d_texcoord(0, 0); g3d_vertex(hsz, -hsz, hsz);
+       g3d_texcoord(1, 0); g3d_vertex(hsz, -hsz, -hsz);
+       g3d_texcoord(1, 1); g3d_vertex(hsz, hsz, -hsz);
+       g3d_texcoord(0, 1); g3d_vertex(hsz, hsz, hsz);
+       g3d_color3b(0, 0, 255);
        g3d_normal(0, 0, -1);
-       g3d_vertex(1, -1, -1);
-       g3d_vertex(-1, -1, -1);
-       g3d_vertex(-1, 1, -1);
-       g3d_vertex(1, 1, -1);
+       g3d_texcoord(0, 0); g3d_vertex(hsz, -hsz, -hsz);
+       g3d_texcoord(1, 0); g3d_vertex(-hsz, -hsz, -hsz);
+       g3d_texcoord(1, 1); g3d_vertex(-hsz, hsz, -hsz);
+       g3d_texcoord(0, 1); g3d_vertex(hsz, hsz, -hsz);
+       g3d_color3b(255, 0, 255);
        g3d_normal(-1, 0, 0);
-       g3d_vertex(-1, -1, -1);
-       g3d_vertex(-1, -1, 1);
-       g3d_vertex(-1, 1, 1);
-       g3d_vertex(-1, 1, -1);
+       g3d_texcoord(0, 0); g3d_vertex(-hsz, -hsz, -hsz);
+       g3d_texcoord(1, 0); g3d_vertex(-hsz, -hsz, hsz);
+       g3d_texcoord(1, 1); g3d_vertex(-hsz, hsz, hsz);
+       g3d_texcoord(0, 1); g3d_vertex(-hsz, hsz, -hsz);
+       g3d_color3b(255, 255, 0);
        g3d_normal(0, 1, 0);
-       g3d_vertex(-1, 1, 1);
-       g3d_vertex(1, 1, 1);
-       g3d_vertex(1, 1, -1);
-       g3d_vertex(-1, 1, -1);
+       g3d_texcoord(0, 0); g3d_vertex(-hsz, hsz, hsz);
+       g3d_texcoord(1, 0); g3d_vertex(hsz, hsz, hsz);
+       g3d_texcoord(1, 1); g3d_vertex(hsz, hsz, -hsz);
+       g3d_texcoord(0, 1); g3d_vertex(-hsz, hsz, -hsz);
+       g3d_color3b(0, 255, 255);
        g3d_normal(0, -1, 0);
-       g3d_vertex(1, -1, 1);
-       g3d_vertex(-1, -1, 1);
-       g3d_vertex(-1, -1, -1);
-       g3d_vertex(1, -1, -1);
+       g3d_texcoord(0, 0); g3d_vertex(hsz, -hsz, hsz);
+       g3d_texcoord(1, 0); g3d_vertex(-hsz, -hsz, hsz);
+       g3d_texcoord(1, 1); g3d_vertex(-hsz, -hsz, -hsz);
+       g3d_texcoord(0, 1); g3d_vertex(hsz, -hsz, -hsz);
        g3d_end();
 }