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second: more box optimization

This commit is contained in:
Vince Weaver 2023-10-01 01:28:13 -04:00
parent 7054084a9e
commit 4d1b567fe5
2 changed files with 20 additions and 7 deletions
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6
demos/second/part18_3d/auto/NOTES
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@ -19,15 +19,15 @@ todo, compressed:
522 bytes: try9: optimize HLIN to HLIN_ADD variants
506 bytes: try10: sort types per color
498 bytes: try11: sort HLIN by Y1
431 bytes: try12: with don't cares
TODO:
Add don't cares
Try all color combos
Sort the color results to have consecutive HLINs together
MOVE PLOTS one line before HLIN
Possible size boxes
48x40,39,38....1

21
demos/second/part18_3d/auto/box_convert.c
View File

@ -168,15 +168,23 @@ int create_using_boxes(void) {
for(box=0;box<NUM_BOX_SIZES;box++) {
int xx,yy,box_found;
int xx,yy,box_found,color_found;
for(row=0;row<48-box_sizes[box].y;row++) {
for(col=0;col<40-box_sizes[box].x;col++) {
box_found=1;
color_found=0;
for(yy=0;yy<box_sizes[box].y;yy++) {
for(xx=0;xx<box_sizes[box].x;xx++) {
if (framebuffer[xx+col][yy+row]!=current_color) {
if (framebuffer[xx+col][yy+row]==current_color) {
color_found=1;
}
if ((framebuffer[xx+col][yy+row]==background_color)||
(framebuffer[xx+col][yy+row]==0xff))
{
box_found=0;
break;
}
@ -184,7 +192,10 @@ int create_using_boxes(void) {
if (!box_found) break;
} // yy
if (box_found) {
if ((box_found)&&(color_found)) {
fprintf(stderr,"Found box c=%d %d,%d to %d,%d\n",
current_color,col,row,col+box_sizes[box].x-1,
row+box_sizes[box].y-1);
primitive_list[current_primitive].color=
current_color;
primitive_list[current_primitive].x1=col;
@ -201,7 +212,9 @@ int create_using_boxes(void) {
}
for(yy=0;yy<box_sizes[box].y;yy++) {
for(xx=0;xx<box_sizes[box].x;xx++) {
framebuffer[xx+col][yy+row]=0xff;
if(framebuffer[xx+col][yy+row]==current_color) {
framebuffer[xx+col][yy+row]=0xff;
}
}
}