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Topic: Simple pixel buffer problem (Read 346 times) |
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Dan
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Simple pixel buffer problem
« on: Jan 27th, 2003, 3:17pm » |
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Ok, I'm creating a class called "environment" that's going to be a pixel buffer for use within some other experiments. As you'll see from the code below it's not got very far, but for some reason p5 won't even run the program - with no errors!?
I'm sure it's something stupid...
Code://===============================================================
// Pixel Buffer Test
// by Daniel Pupius (http://pupius.co.uk)
//
// Created: 27 January 2003
// Revised: Never
//===============================================================
//constants
int WIDTH = 300;
int HEIGHT = 300;
//global variables
environment env = new environment(0, 50, 0);;
//===============================================================
void setup() {
size(WIDTH, HEIGHT);
colorMode(RGB,100);
background(100);
}
void loop() {
env.paint();
}
//===============================================================
class environment {
int[][] pixel_buffer = new int[WIDTH][HEIGHT];
environment(int r,int g,int b) {
//set base colour of all pixels
for(int i=0;i<WIDTH;i++) for(int j=0;j<HEIGHT;j++) this.pixel_buffer[i][j] = color(r,g,b);
}
void paint() {
//Loop through all pixels and set windows' colours
for(int x=0;x<WIDTH;x++) for(int y=0;y<WIDTH;y++) pixels[x+y*WIDTH] = this.pixel_buffer[x][y];
}
}
//===============================================================
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REAS
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Re: Simple pixel buffer problem
« Reply #1 on: Jan 27th, 2003, 9:03pm » |
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I think it's a problem with Proce55ing. I couldn't track it down precisely, but this works as a starting point for continuing your program:
Code:
//===============================================================
// Pixel Buffer Test
// by Daniel Pupius (http://pupius.co.uk)
//
// Created: 27 January 2003
// Revised: Never
//===============================================================
//global variables
Environment env;
//===============================================================
void setup()
{
size(300, 300);
colorMode(RGB,100);
background(100);
env = new Environment(255, 204, 102, width, height);
}
void loop()
{
env.paint();
}
//===============================================================
class Environment
{
int[][] pixel_buffer; //= new int[width][height];
int ewidth, eheight;
Environment(int r, int g, int b, int w, int h) {
ewidth = w;
eheight = h;
pixel_buffer = new int[ewidth][eheight];
//set base colour of all pixels
for(int i=0; i<ewidth; i++) {
for(int j=0; j<eheight; j++) {
//pixel_buffer[i][j] = color(r,g,b);
pixel_buffer[i][j] = r << 16 | g << 8 | b & 0xFF;
}
}
}
void paint() {
//Loop through all pixels and set windows' colours
for(int x=0; x<ewidth; x++) {
for(int y=0; y<eheight; y++) {
pixels[x+y*ewidth] = pixel_buffer[x][y];
}
}
}
}
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fry
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Re: Simple pixel buffer problem
« Reply #2 on: Jan 27th, 2003, 9:32pm » |
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i think it's the same compiler bug that won't let you use any p5-specific functions in the constructor of another class. this one is really getting to be a problem, it would seem.
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Dan
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Re: Simple pixel buffer problem
« Reply #3 on: Jan 28th, 2003, 7:47pm » |
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Thanks guys, that seems to have fixed it. Now on with the experimentation!
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