partial zbuffer implementation #2

[dosdemo] / src / scr / polytest.c

diff --git a/src/scr/polytest.c b/src/scr/polytest.c
index 0b05313..ca04256 100644 (file)
--- a/src/scr/polytest.c
+++ b/src/scr/polytest.c
@@ -10,6 +10,7 @@
 #include "cfgopt.h"
 #include "mesh.h"
 #include "bsptree.h"
+#include "util.h"
 
 static int init(void);
 static void destroy(void);
@@ -66,11 +67,11 @@ static int init(void)
        }
        */
 
-       gen_texture(&tex, 128, 128);
+       gen_texture(&tex, 64, 64);
 
 #ifdef DEBUG_POLYFILL
-       lowres_width = fb_width / LOWRES_SCALE;
-       lowres_height = fb_height / LOWRES_SCALE;
+       lowres_width = FB_WIDTH / LOWRES_SCALE;
+       lowres_height = FB_HEIGHT / LOWRES_SCALE;
        lowres_pixels = malloc(lowres_width * lowres_height * 2);
        scr.draw = draw_debug;
 #endif
@@ -101,6 +102,8 @@ static void start(long trans_time)
 
        g3d_polygon_mode(G3D_GOURAUD);
        g3d_enable(G3D_TEXTURE_2D);
+
+       g3d_enable(G3D_DEPTH_TEST);
 }
 
 static void update(void)
@@ -116,7 +119,9 @@ static void draw(void)
 
        update();
 
-       memset(fb_pixels, 0, fb_width * fb_height * 2);
+       //memset16(fb_pixels, PACK_RGB16(20, 30, 50), FB_WIDTH * FB_HEIGHT);
+       g3d_clear_color(20, 30, 50);
+       g3d_clear(G3D_COLOR_BUFFER_BIT | G3D_DEPTH_BUFFER_BIT);
 
        g3d_matrix_mode(G3D_MODELVIEW);
        g3d_load_identity();
@@ -128,9 +133,8 @@ static void draw(void)
                g3d_rotate(cam_theta, 0, 1, 0);
        }
 
-       g3d_light_pos(0, -10, 10, 20);
-
-       g3d_mtl_diffuse(0.4, 0.7, 1.0);
+       g3d_light_dir(0, -10, 10, 10);
+       g3d_mtl_diffuse(1.0, 1.0, 1.0);
        g3d_set_texture(tex.width, tex.height, tex.pixels);
 
        if(use_bsp) {
@@ -143,10 +147,18 @@ static void draw(void)
 
                draw_bsp(&torus_bsp, vdir[0], vdir[1], vdir[2]);
        } else {
-               zsort_mesh(&torus);
+               //zsort_mesh(&torus);
                draw_mesh(&torus);
        }
 
+       /*{
+               int i;
+               for(i=0; i<FB_WIDTH*FB_HEIGHT; i++) {
+                       unsigned int z = pfill_zbuf[i];
+                       fb_pixels[i] = z;
+               }
+       }*/
+
        /*draw_mesh(&cube);*/
        swap_buffers(fb_pixels);
 }
@@ -170,7 +182,7 @@ static void draw_debug(void)
        draw_lowres_raster();
 
 
-       g3d_framebuffer(fb_width, fb_height, fb_pixels);
+       g3d_framebuffer(FB_WIDTH, FB_HEIGHT, fb_pixels);
 
        g3d_polygon_mode(G3D_WIRE);
        draw_mesh(&cube);
@@ -201,10 +213,10 @@ static void draw_lowres_raster(void)
 
        for(i=0; i<lowres_height; i++) {
                for(j=0; j<lowres_width; j++) {
-                       draw_huge_pixel(dptr, fb_width, *sptr++);
+                       draw_huge_pixel(dptr, FB_WIDTH, *sptr++);
                        dptr += LOWRES_SCALE;
                }
-               dptr += fb_width * LOWRES_SCALE - fb_width;
+               dptr += FB_WIDTH * LOWRES_SCALE - FB_WIDTH;
        }
 }
 
@@ -230,9 +242,12 @@ static int gen_texture(struct pimage *img, int xsz, int ysz)
 
        for(i=0; i<ysz; i++) {
                for(j=0; j<xsz; j++) {
-                       int val = i ^ j;
+                       int val = (i << 2) ^ (j << 2);
+                       uint16_t r = val;
+                       uint16_t g = val << 1;
+                       uint16_t b = val << 2;
 
-                       *pix++ = PACK_RGB16(val, val, val);
+                       *pix++ = PACK_RGB16(r, g, b);
                }
        }