better input, button for quality selection

[gbajam22] / src / voxscape.c

diff --git a/src/voxscape.c b/src/voxscape.c
index b57cad4..e2e8f4d 100644 (file)
--- a/src/voxscape.c
+++ b/src/voxscape.c
@@ -59,6 +59,8 @@ struct voxscape {
        unsigned int valid;
 };
 
+int vox_quality = 1;
+
 struct voxscape *vox_create(int xsz, int ysz, uint8_t *himg, uint8_t *cimg)
 {
        struct voxscape *vox;
@@ -219,10 +221,11 @@ void vox_proj(struct voxscape *vox, int fov, int znear, int zfar)
        vox->zfar = zfar;
 
        vox->nslices = vox->zfar - vox->znear;
-       free(vox->slicelen);
-       if(!(vox->slicelen = iwram_sbrk(vox->nslices * sizeof *vox->slicelen))) {
-               panic(get_pc(), "vox_proj: failed to allocate slice length table (%d)\n", vox->nslices);
-               return;
+       if(!vox->slicelen) {
+               if(!(vox->slicelen = iwram_sbrk(vox->nslices * sizeof *vox->slicelen))) {
+                       panic(get_pc(), "vox_proj: failed to allocate slice length table (%d)\n", vox->nslices);
+                       return;
+               }
        }
 
        vox->valid &= ~SLICELEN;
@@ -239,11 +242,18 @@ void vox_render(struct voxscape *vox)
        int i;
 
        vox_begin(vox);
-       for(i=0; i<vox->nslices; i++) {
-               /*if(i >= 10 && (i & 1) == 0) {
-                       continue;
-               }*/
-               vox_render_slice(vox, i);
+
+       if(vox_quality) {
+               for(i=0; i<vox->nslices; i++) {
+                       vox_render_slice(vox, i);
+               }
+       } else {
+               for(i=0; i<vox->nslices; i++) {
+                       if(i >= 10 && (i & 1) == 0) {
+                               continue;
+                       }
+                       vox_render_slice(vox, i);
+               }
        }
 }