void GWait::draw_this(LCD_MODULE* lcd)
{
uint8_t mask=1;
if(R > 5)
{
POINT_T p;//, r(R-2,R-2);
for(int i=0; i < 8; i++, mask <<=1)
{
p = PolarToDevXY(i*45, R-4, lcd);
p += base;
if(last_state & mask)
{
lcd->color = PIX_BLACK;
fill_circle(p, 2);
lcd->color = PIX_WHITE;
draw_circle(p, 2);
continue;
}
if(new_state & mask)
fill_circle(p, 2);
else
draw_circle(p, 2);
}
}
}
// helper function for drawing - no more need to go mess with
// the main function when just want to change what to draw...
void draw() {
int x;
// some pixels
for (x = 0; x < vinfo.xres; x+=5) {
put_pixel(x, vinfo.yres / 2, WHITE);
}
// some lines (note the quite likely 'Moire pattern')
for (x = 0; x < vinfo.xres; x+=20) {
draw_line(0, 0, x, vinfo.yres - 1, GREEN);
}
// some rectangles
draw_rect(vinfo.xres / 4, vinfo.yres / 2 + 10, vinfo.xres / 4, vinfo.yres / 4, PURPLE);
draw_rect(vinfo.xres / 4 + 10, vinfo.yres / 2 + 20, vinfo.xres / 4 - 20, vinfo.yres / 4 - 20, PURPLE);
fill_rect(vinfo.xres / 4 + 20, vinfo.yres / 2 + 30, vinfo.xres / 4 - 40, vinfo.yres / 4 - 40, YELLOW);
// some circles
int d;
for(d = 10; d < vinfo.yres / 6; d+=10) {
draw_circle(3 * vinfo.xres / 4, vinfo.yres / 4, d, RED);
}
fill_circle(3 * vinfo.xres / 4, 3 * vinfo.yres / 4, vinfo.yres / 6, ORANGE);
fill_circle(3 * vinfo.xres / 4, 3 * vinfo.yres / 4, vinfo.yres / 8, RED);
}
int main(int argc, char *argv[]){
// Initialize
std::ofstream fout("data.raw",std::ios::binary);
if( fout.fail() ){ return -1; }
int width = DATA_WIDTH;
int height = DATA_HEIGHT;
// Create image data1 and draw circles
float* data1 = new float[width*height];
std::cout <<"In function: " << __FUNCTION__<< std::endl;
fill_circle( data1, width, height, (1*width)/3, (5*height)/8, width/4 );
fill_circle( data1, width, height, (4*width)/5, (6*height)/8, width/5 );
fill_circle( data1, width, height, (2*width)/3, (1*height)/4, width/6 );
// Create image data2 and draw circles
float* data2 = new float[width*height];
fill_circle( data2, width, height, width/2, height/2, width/5 );
// Create a Gaussian filter
int filt_width = FILT_WIDTH;
int filt_height = FILT_HEIGHT;
float* pfilt = new float[filt_width*filt_height];
fill_gaussian_filter_data(pfilt,filt_width,filt_height);
// Create result image data
// TODO: why do I need sizeof(float) when float is used as type?
float* data_res = new float[sizeof(float)*width*height];
// Apply Gaussian filter to data1 -> data_res
apply_filter(data_res, data1, width, height, pfilt, filt_width, filt_height);
std::cout << "Line : " << __LINE__ << std::endl;
// Copy result (data_res) to data1
memcpy(data1,data_res,width*height*sizeof(data_res)); // HERE IS PROBLEM, RABORT MID OR I FEED
std::cout << "Line : " << __LINE__ << std::endl;
// Take larges pixel value from data1 and data2 and store in data_res
copy_max_value(data_res, data1, data2, width, height);
std::cout << "Line : " << __LINE__ << std::endl;
// Save result to file and clean up
fout.write(reinterpret_cast<char*>(data_res),width*height*sizeof(data_res));
if( fout.fail() ){ return -1; }
fout.close();
std::cout << "Line : " << __LINE__ << std::endl;
delete[] data1;
delete[] data2;
delete[] pfilt;
delete[] data_res;
std::cout << "Line : " << __LINE__ << std::endl;
return 0;
}
int main(int argc, char **argv)
{
struct fb fb;
struct pt p;
struct sigaction sa;
sa.sa_handler = &sighandler;
sigaction(SIGINT, &sa, NULL);
srand(time(NULL));
fb_init(&fb);
int w = fb.vinfo.xres;
int h = fb.vinfo.yres;
int min_r = 5;
int max_r = 200;
while (running) {
set_color(&fb, rand());
p.x = rand() % w;
p.y = rand() % h;
double radius = rand() % (max_r - min_r) + min_r;
if (p.x - radius < 0 || p.x + radius >= w ||
p.y - radius < 0 || p.y + radius >= h) {
continue;
}
fill_circle(&fb, p, radius);
buffer_swap(&fb);
refresh(&fb);
usleep(100);
}
fb_uninit(&fb);
return 0;
}
TestWindow(int w, int h,
char const* const* files, int fileCount,
bool doCircles, bool doFade, ShapeFactory fact,
int repeat) : GXWindow(w, h) {
fDoOpaque = true;
fStartTime = GTime::GetMSec();
fCounter = 0;
GRandom rand;
fBitmapCount = 0;
fBitmaps = new GBitmap[fileCount];
for (int i = 0; i < fileCount; ++i) {
if (GReadBitmapFromFile(files[i], &fBitmaps[i])) {
fBitmapCount += 1;
if (doCircles) {
fill_circle(fBitmaps[i]);
}
} else {
fprintf(stderr, "failed to decode %s\n", files[i]);
}
}
fShapeCount = fBitmapCount * repeat;
fShapes = new Shape*[fShapeCount];
float speed = 300;
for (int i = 0; i < fShapeCount; ++i) {
fShapes[i] = fact(fBitmaps[i % fBitmapCount], w/2, h/2);
fShapes[i]->setup(rand.nextF() * speed,
rand.nextF() * speed,
doFade ? rand.nextF() : 0);
}
}
SDL_Surface * drawCircle(const float radius, const char red, const char green, const char blue)
{
const int size = static_cast<int>((radius + 0.5f) * 2);
SDL_Surface * result = SDL_CreateRGBSurface(0, size, size, 32, 0, 0, 0, 0);
fill_circle(result, size / 2, size / 2, size/2, SDL_MapRGB(result->format, red, green, blue));
return result;
}
int main(int argc, char** argv) {
init_graphics();
clear_screen();
int x, y;
fill_circle(120, 120, 100, GREEN_COLOR);
exit_graphics();
return 0;
}
int main()
{
int xc, yc, r, ny, nc, k, j;
unsigned char val_fill, val_erode;
void fill_circle(), erode();
/* Values (i.e. VLT index) for filling the circles and erosion replacement. */
val_fill = 8;
val_erode = 1;
/* Allocate space initialized to zero for the test frame buffer: */
ny = YMAX - YMIN + 1; /* number of rasters */
Pt_Frame = (unsigned char *)calloc(STRIDE * ny, sizeof(unsigned char));
/* Obtain user input and loop through circles filling each one. */
printf(" Number of circles: ");
scanf("%d", &nc); /* try: 3 */
for(k=0; k<nc; k++) {
printf(" center (x,y) and radius: ");
scanf("%d%d%d", &xc, &yc, &r); /* try: 5 5 6, 15 12 7, 28 6 5 */
/* Check for total clipping before filling circle: */
if(xc+r < XMIN || xc-r > XMAX || yc+r < YMIN || yc-r > YMAX) {
printf("Circle x,y,r: %d %d %d total clip.\n", xc, yc, r);
}
else {
fill_circle(xc, yc, r, val_fill);
}
} /* end for loop through circles */
/* Print the Upper Left corner of the buffer after filling circles: */
printf("UL corner of filled buffer.\n");
for(k=0; k<23; k++) {
printf("%2d: ",k);
for(j=0; j<35; j++) {
printf("%2d", *(Pt_Frame + j + k * STRIDE));
}
printf("\n");
}
erode(val_fill, val_erode); /* erode the filled circles */
/* Print the Upper Left corner of the buffer after eroding filled circles: */
printf("UL corner of eroded buffer.\n");
for(k=0; k<23; k++) {
printf("%2d: ",k);
for(j=0; j<35; j++) {
printf("%2d", *(Pt_Frame + j + k * STRIDE));
}
printf("\n");
}
free((char*) Pt_Frame); /* free the frame buffer memory */
}
void Canvas::fill_ellipse(const Pointf ¢er, float radius_x, float radius_y, const Gradient &gradient)
{
float max_radius = max(radius_x, radius_y);
if (max_radius == 0)
return;
const Mat4f original_transform = get_transform();
mult_transform(Mat4f::translate(center.x, center.y, 0));
mult_transform(Mat4f::scale(radius_x / max_radius, radius_y / max_radius, 1.0f));
fill_circle(Pointf(0, 0), max_radius, gradient);
set_transform(original_transform);
}
void ArcballHelper::update_rim(Arcball const & arcball)
{
std::vector<glm::vec3> positions;
if (!override_rim) {
auto & material = rim_node->get_material();
material.get_uniform("diffuse") = glm::vec3(0.3f, 0.3f, 0.3f);
fill_circle(arcball, positions);
}
auto & mesh = rim_node->get_mesh();
mesh.set_positions(positions);
}
int main(int argc, char **argv) {
etherdream_lib_start();
/* Sleep for a bit over a second, to ensure that we see broadcasts
* from all available DACs. */
usleep(1200000);
int cc = etherdream_dac_count();
if (!cc) {
printf("No DACs found.\n");
return 0;
}
int mode;
if (argc > 1)
mode = atoi(argv[1]);
else
mode = 0;
int i;
for (i = 0; i < cc; i++) {
printf("%d: Ether Dream %06lx\n", i,
etherdream_get_id(etherdream_get(i)));
}
struct etherdream *d = etherdream_get(0);
printf("Connecting...\n");
if (etherdream_connect(d) < 0)
return 1;
i = 0;
while (1) {
fill_circle((float)i / 50, mode);
int res = etherdream_write(d, circle, CIRCLE_POINTS, 30000, 1);
if (res != 0) {
printf("write %d\n", res);
}
etherdream_wait_for_ready(d);
i++;
}
printf("done\n");
return 0;
}
void UnitTest_ConvexHull::TestFindMax()
{
// Test with empty hull
{
using Point = Point2<int>;
const std::vector<Point> convex_hull{};
auto res = ConvexHull<int>::FindMax(convex_hull.cbegin(), convex_hull.cend(), [](const Point& p1, const Point& p2) { return p1.y() < p2.y(); });
CHECK_TRUE(res == convex_hull.cend());
}
// Test with small hull
{
using Point = Point2<int>;
const std::vector<Point> convex_hull{ Point(0,0), Point(1,0), Point(2,0), Point(1,1) };
auto res = ConvexHull<int>::FindMax(convex_hull.cbegin(), convex_hull.cend(), [](const Point& p1, const Point& p2) { return p1.y() < p2.y(); });
const Point expected(1, 1);
CHECK_EQUAL(*res, expected);
}
// Test with large hull
{
using Point = Point2<float>;
std::vector<Point> convex_hull;
const int vertices_count = 60;
convex_hull.reserve(vertices_count);
fill_circle(vertices_count, 1.f, std::back_inserter(convex_hull));
const int shift_size = 10;
const int iters_count = vertices_count / shift_size - 1;
for (int i = 0; i < iters_count; ++i)
{
auto res = ConvexHull<float>::FindMax(convex_hull.cbegin(), convex_hull.cend(), [](const Point& p1, const Point& p2) { return p1.y() < p2.y(); });
CHECK_TRUE(AlmostEqualAbsolute(res->x(), 0, 0.00001f));
CHECK_TRUE(AlmostEqualRelative(res->y(), 1, 0.00001f));
std::rotate(convex_hull.begin(), convex_hull.begin() + shift_size, convex_hull.end());
}
}
}
void ArcballHelper::fill_constraint(Arcball const & arcball, unsigned int index)
{
std::vector<glm::vec3> positions;
auto & mesh = constraint_nodes[index]->get_mesh();
auto & material = constraint_nodes[index]->get_material();
mesh.set_draw_mode(gst::DrawMode::LINE_STRIP);
material.get_uniform("diffuse") = axis_index_color(index);
material.get_uniform("opacity") = arcball.constraint.nearest == index ? 1.0f : 0.4f;
auto axis = arcball.constraint.available[index];
if (axis.z == 1.0f) {
// we are looking down through the z-axis
mesh.set_draw_mode(gst::DrawMode::LINE_LOOP);
fill_circle(arcball, positions);
// we signal to not draw our rim to avoid color conflicts when drawing
override_rim = true;
} else {
fill_half_arc(arcball, positions, axis);
}
mesh.set_positions(positions);
}
static void repaint_halftone(halftone_screen *halftone)
{
int x, y;
/*
int x_offset = halftone->spacing / 2;
int y_offset = halftone->spacing / 2;
*/
int x_offset = 0;
int y_offset = 0;
/* Fill buffer with background color */
XSetForeground (halftone->dpy, halftone->buffer_gc,
halftone->colors[halftone->color0].pixel);
XFillRectangle(halftone->dpy, halftone->buffer, halftone->buffer_gc, 0, 0, halftone->buffer_width, halftone->buffer_height);
/* Draw dots on buffer */
XSetForeground (halftone->dpy, halftone->buffer_gc,
halftone->colors[halftone->color1].pixel);
if (halftone->color_tick++ >= halftone->cycle_speed)
{
halftone->color_tick = 0;
halftone->color0 = (halftone->color0 + 1) % halftone->ncolors;
halftone->color1 = (halftone->color1 + 1) % halftone->ncolors;
}
for (x = 0; x < halftone->dots_width; x++)
for (y = 0; y < halftone->dots_height; y++)
fill_circle(halftone->dpy, halftone->buffer, halftone->buffer_gc,
x_offset + x * halftone->spacing, y_offset + y * halftone->spacing,
halftone->max_dot_size * halftone->dots[x + y * halftone->dots_width]);
/* Copy buffer to window */
if (halftone->buffer != halftone->window)
XCopyArea(halftone->dpy, halftone->buffer, halftone->window, halftone->gc, 0, 0, halftone->buffer_width, halftone->buffer_height, 0, 0);
}
void UnitTest_ConvexHull::TestCompute()
{
// Test with empty vector
{
std::vector<Point2<int>> points;
std::vector<int> hull;
ConvexHull<int>::ComputeNlgH(points.cbegin(), points.cend(), &hull);
CHECK_EQUAL((int)hull.size(), 0);
}
// Test with all points in line
{
using Point = Point2<int>;
std::vector<Point> points{ Point(0,1), Point(0,2), Point(0,3), Point(0,4) };
std::vector<int> hull;
ConvexHull<int>::ComputeNlgH(points.cbegin(), points.cend(), &hull);
CHECK_EQUAL((int)hull.size(), 2);
CHECK_EQUAL(hull[0], 0);
CHECK_EQUAL(hull.back(), (int)points.size() - 1);
}
// Test circle
{
using Point = Point2<float>;
std::vector<Point> points;
const int vertices_count = 60;
points.reserve(vertices_count);
fill_circle(vertices_count, 1.f, std::back_inserter(points));
std::vector<int> hull;
ConvexHull<float>::ComputeNlgH(points.cbegin(), points.cend(), &hull);
CHECK_EQUAL((int)hull.size(), vertices_count);
bool zero_index_met = false;
for (int i = 1; i < vertices_count; ++i)
{
if (hull[i - 1] == 0)
zero_index_met = true;
CHECK_TRUE(hull[i] == hull[i - 1] + 1 || !zero_index_met && hull[i] == 0);
}
}
// Test circle with circle inside
{
using Point = Point2<float>;
std::vector<Point> points;
const int vertices_count = 60;
points.reserve(vertices_count * 2);
fill_circle(vertices_count, 2.f, std::back_inserter(points));
fill_circle(vertices_count, 1.f, std::back_inserter(points));
std::vector<int> hull;
ConvexHull<float>::ComputeNlgH(points.cbegin(), points.cend(), &hull);
std::vector<int> expected_hull(vertices_count);
std::iota(expected_hull.begin(), expected_hull.end(), 0);
bool zero_index_met = false;
for (int i = 1; i < vertices_count; ++i)
{
if (hull[i - 1] == 0)
zero_index_met = true;
CHECK_TRUE(hull[i] < 60 && hull[i] == hull[i - 1] + 1 || !zero_index_met && hull[i] == 0);
}
}
// Rotated wedding rings
{
using Point = Point2<float>;
std::vector<Point> points;
const int vertices_count = 60;
points.reserve(vertices_count * 2);
fill_circle(vertices_count, 2.f, std::back_inserter(points));
fill_circle(vertices_count, 2.f, std::back_inserter(points));
// Move second circle along y axis a bit
std::transform(points.begin() + vertices_count, points.end(), points.begin() + vertices_count, [](const Point& p) { return p + Point(0.f, 1.f); });
std::vector<int> hull;
ConvexHull<float>::ComputeNlgH(points.cbegin(), points.cend(), &hull);
std::vector<int> expected_hull(vertices_count + 2);
expected_hull[0] = 0; // Rightmost vertex of the lowest circle
std::iota(expected_hull.begin() + 1, expected_hull.begin() + 32, 60);
std::iota(expected_hull.begin() + 32, expected_hull.end(), 30);
utilities::unit_tests::UnitTestHelper::CheckVectorsForEquality(hull, expected_hull);
}
}
void Canvas::fill_circle(const Pointf ¢er, float radius, const Gradient &gradient)
{
fill_circle(center, center, radius, gradient);
}
void
Canvas::run(uint8_t ix, const void_P* tab, uint8_t max)
{
if (ix >= max) return;
const uint8_t* ip = (const uint8_t*) pgm_read_word(tab + ix);
uint8_t x, y, r, g, b, w, h, s;
int8_t dx, dy;
char c;
while (1) {
switch (pgm_read_byte(ip++)) {
case END_SCRIPT:
return;
case CALL_SCRIPT:
ix = pgm_read_byte(ip++);
if (ix >= max) return;
run(ix, tab, max);
break;
case SET_CANVAS_COLOR:
r = pgm_read_byte(ip++);
g = pgm_read_byte(ip++);
b = pgm_read_byte(ip++);
set_canvas_color(color(r, b, g));
break;
case SET_PEN_COLOR:
r = pgm_read_byte(ip++);
g = pgm_read_byte(ip++);
b = pgm_read_byte(ip++);
set_pen_color(color(r, g, b));
break;
case SET_TEXT_COLOR:
r = pgm_read_byte(ip++);
g = pgm_read_byte(ip++);
b = pgm_read_byte(ip++);
set_text_color(color(r, g, b));
break;
case SET_TEXT_SCALE:
set_text_scale(pgm_read_byte(ip++));
break;
case SET_TEXT_FONT:
ix = pgm_read_byte(ip++);
if (ix >= max) return;
set_text_font((Font*) pgm_read_word(tab + ix));
break;
case SET_CURSOR:
x = pgm_read_byte(ip++);
y = pgm_read_byte(ip++);
set_cursor(x, y);
break;
case MOVE_CURSOR:
dx = pgm_read_byte(ip++);
dy = pgm_read_byte(ip++);
move_cursor(dx, dy);
break;
case DRAW_BITMAP:
ix = pgm_read_byte(ip++);
if (ix >= max) return;
w = pgm_read_byte(ip++);
h = pgm_read_byte(ip++);
s = pgm_read_byte(ip++);
draw_bitmap((const uint8_t*) pgm_read_word(tab + ix), w, h, s);
break;
case DRAW_ICON:
ix = pgm_read_byte(ip++);
if (ix >= max) return;
s = pgm_read_byte(ip++);
draw_icon((const uint8_t*) pgm_read_word(tab + ix), s);
break;
case DRAW_PIXEL:
draw_pixel();
break;
case DRAW_LINE:
x = pgm_read_byte(ip++);
y = pgm_read_byte(ip++);
draw_line(x, y);
break;
case DRAW_POLY:
ix = pgm_read_byte(ip++);
if (ix >= max) return;
s = pgm_read_byte(ip++);
draw_poly_P((const int8_t*) pgm_read_word(tab + ix), s);
break;
case DRAW_STROKE:
ix = pgm_read_byte(ip++);
if (ix >= max) return;
s = pgm_read_byte(ip++);
draw_stroke_P((const int8_t*) pgm_read_word(tab + ix), s);
break;
case DRAW_RECT:
w = pgm_read_byte(ip++);
h = pgm_read_byte(ip++);
draw_rect(w, h);
break;
case FILL_RECT:
w = pgm_read_byte(ip++);
h = pgm_read_byte(ip++);
fill_rect(w, h);
break;
case DRAW_ROUNDRECT:
w = pgm_read_byte(ip++);
h = pgm_read_byte(ip++);
r = pgm_read_byte(ip++);
draw_roundrect(w, h, r);
break;
case FILL_ROUNDRECT:
w = pgm_read_byte(ip++);
h = pgm_read_byte(ip++);
r = pgm_read_byte(ip++);
fill_roundrect(w, h, r);
break;
case DRAW_CIRCLE:
r = pgm_read_byte(ip++);
draw_circle(r);
break;
case FILL_CIRCLE:
r = pgm_read_byte(ip++);
fill_circle(r);
break;
case DRAW_CHAR:
c = pgm_read_byte(ip++);
draw_char(c);
break;
case DRAW_STRING:
ix = pgm_read_byte(ip++);
if (ix >= max) return;
draw_string_P((const char*) pgm_read_word(tab + ix));
break;
case FILL_SCREEN:
fill_screen();
break;
default:
return;
}
}
}
int main (int argc, char** argv)
{
printf("\nPress \"1\" to draw a non-filled rectangle.\n");
printf("Press \"2\" to draw a filled circle.\n");
printf("Press \"3\" to display a string.\n");
printf("**Select shape. Use the \"WASD\" keys to move the shape around.\n");
printf("**Press the \"q\" at any point to termiante the program.\n");
char key;
int x = (640-20)/2;
int y = (480-20)/2;
int choice;
scanf("%d", &choice);
/**
* Draw a non-filled rectangle.
* Move around with 'WASD' keys.
* Terminate with 'q' key.
*/
{
if(choice == 1)
init_graphics();
clear_screen();
draw_rect(x, y, 200, 100, 20);
do
{
key = getkey();
if(key == 'w') y-=10;
else if(key == 's') y+=10;
else if(key == 'a') x-=10;
else if(key == 'd') x+=10;
clear_screen();
draw_rect(x, y, 200, 100, 20);
sleep_ms(20);
} while(key != 'q');
clear_screen();
exit_graphics();
}
/**
* Draw a filled circle with the midpoint circle algorithm.
* Move around with 'WASD' keys.
* Terminate with 'q' key.
*/
if(choice == 2)
{
init_graphics();
clear_screen();
fill_circle(x, y, 75, 20);
do
{
key = getkey();
if(key == 'w') y-=10;
else if(key == 's') y+=10;
else if(key == 'a') x-=10;
else if(key == 'd') x+=10;
clear_screen();
fill_circle(x, y, 75, 20);
sleep_ms(20);
} while(key != 'q');
clear_screen();
exit_graphics();
}
/**
* Write a string usign the iso_font.h header file.
* Move around with 'WASD' keys.
* Terminate with 'q' key.
*/
if(choice == 3)
{
const char *text_input = "Hello World!";
init_graphics();
clear_screen();
draw_text(x, y, text_input, 20);
do
{
key = getkey();
if(key == 'w') x-=10;
else if(key == 's') x+=10;
else if(key == 'a') y-=10;
else if(key == 'd') y+=10;
clear_screen();
draw_text(x, y, text_input, 20);
sleep_ms(20);
} while(key != 'q');
clear_screen();
exit_graphics();
}
return 0;
}
// MAIN
int main(int argc, char ** argv) {
int scene_id = 0;
bool use_octree = false;
char basename[256] = "";
if (argc > 1)
scene_id = atoi(argv[1]);
if (argc > 2)
strcpy(basename, argv[2]);
// scene_id 0, 1, 2, 3 is for tp 1 tests;
switch (scene_id) {
case 0:
fill_red(output_image);
break;
case 1:
fill(output_image, vector_init(0.7, 0.3, 0.1));
fill_rect(output_image, vector_init(0.2, 0.6, 0.7), vector_init(WIDTH / 4, HEIGHT / 5, 0), vector_init(WIDTH / 3, HEIGHT / 4, 0));
break;
case 2:
horizontal_gradient(output_image, vector_init(0, 0, 1), vector_init(1, 1, 1));
break;
case 3:
horizontal_gradient(output_image, vector_init(0, 0, 1), vector_init(1, 1, 1));
fill_circle(output_image, WIDTH / 20, vector_init(4 * WIDTH / 5, 4 * HEIGHT / 5, 0), vector_init(1, 1, 0));
fill_rect(output_image, vector_init(0.1, 0.8, 0.4), vector_init(0, 0, 0), vector_init(WIDTH, HEIGHT / 4, 0));
break;
case 4:
horizontal_gradient(output_image, vector_init(0.5, 0.8, 1), vector_init(1, 1, 1));
fill_circle(output_image, WIDTH / 20, vector_init(4 * WIDTH / 5, 4 * HEIGHT / 5, 0), vector_init(1, 1, 0));
fill_circle(output_image, WIDTH / 21, vector_init(3 * WIDTH / 5, 3 * HEIGHT / 5, 0), vector_init(1, 0.3, 0.1));
fill_rect(output_image, vector_init(0.85, 0.85, 0.3), vector_init(0, 0, 0), vector_init(WIDTH, HEIGHT / 4, 0));
break;
default:
setup_scene(scene_id - 5);
raytrace();
break;
}
#ifdef USE_FREEIMAGE
FreeImage_Initialise();
FIBITMAP *bitmap = FreeImage_Allocate(WIDTH, HEIGHT, 32, FI_RGBA_RED_MASK,
FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
if (bitmap) {
// bitmap successfully created!
// Calculate the number of bytes per pixel (3 for 24-bit or 4 for 32-bit)
color *ptr = output_image;
int bytespp = FreeImage_GetLine(bitmap) / FreeImage_GetWidth(bitmap);
for(unsigned y = 0; y < FreeImage_GetHeight(bitmap); y++) {
BYTE *bits = FreeImage_GetScanLine(bitmap, y);
for(unsigned x = 0; x < FreeImage_GetWidth(bitmap); x++) {
// Set pixel color to green with a transparency of 128
*ptr = vector_clamp(*ptr, 0.f, 1.f);
bits[FI_RGBA_RED] = ptr->x*255;
bits[FI_RGBA_GREEN] = ptr->y*255;
bits[FI_RGBA_BLUE] = ptr->z*255;
bits[FI_RGBA_ALPHA] = 255;
// jump to next pixel
bits += bytespp;
ptr++;
}
}
// FreeImage_Save(FREE_IMAGE_FORMAT fif, FIBITMAP *dib, const char *filename, int flags FI_DEFAULT(0));
char filename[256];
strcpy(filename, basename);
strcat(filename, ".png");
if (FreeImage_Save(FIF_PNG, bitmap, filename, 0)) {
// bitmap successfully saved!
}
FreeImage_Unload(bitmap);
}
FreeImage_DeInitialise();
#endif
// le code ci dessous crée et sauvegarde une image sous le nom output.png dans le repertoire d'execution
{
FILE *fp = NULL;
char filename[256];
strcpy(filename, basename);
strcat(filename, ".ppm");
fp = fopen(filename, "w");
if (fp) {
// création réussi
fprintf(fp, "P3\n");
fprintf(fp, "%d %d\n255\n", WIDTH, HEIGHT);
// La c'est pour faire la boucle
for (unsigned y = 0; y < HEIGHT; y++) {
color *ptr = &(output_image[(HEIGHT - y - 1) * WIDTH]);
for (unsigned x = 0; x < WIDTH; x++) {
*ptr = vector_clamp(*ptr, 0.f, 1.f);
unsigned char r = ptr->x * 255;
unsigned char g = ptr->y * 255;
unsigned char b = ptr->z * 255;
ptr++;
fprintf(fp, "%d %d %d ", r, g, b);
}
fprintf(fp, "\n");
}
fclose(fp);
}
}
return 0;
}
void generic_fill_ellipse(u32 x, u32 y, u32 a, u32 b, pixel_t pixel)
{
if (a == b)
fill_circle(x, y, a, pixel);
else {
u32 a2 = a*a;
u32 b2 = b*b;
if (a <= b) {
u32 x1 = 0;
u32 y1 = b;
int S = a2*(1-2*b)+2*b2;
int T = b2-2*a2*(2*b-1);
int dT1 = 4*b2;
int dS1 = dT1+2*b2;
int dS2 = -4*a2*(b-1);
int dT2 = dS2+2*a2;
while (1) {
if (S < 0) {
S += dS1;
T += dT1;
dS1 += 4*b2;
dT1 += 4*b2;
x1++;
} else if (T < 0) {
fill_ellipse_points(x, y, x1, y1, pixel);
if (y1 == 0)
break;
S += dS1+dS2;
T += dT1+dT2;
dS1 += 4*b2;
dT1 += 4*b2;
dS2 += 4*a2;
dT2 += 4*a2;
x1++;
y1--;
} else {
fill_ellipse_points(x, y, x1, y1, pixel);
if (y1 == 0)
break;
S += dS2;
T += dT2;
dS2 += 4*a2;
dT2 += 4*a2;
y1--;
}
}
} else {
u32 x1 = a;
u32 y1 = 0;
int S = b2*(1-2*a)+2*a2;
int T = a2-2*b2*(2*a-1);
int dT1 = 4*a2;
int dS1 = dT1+2*a2;
int dS2 = -4*b2*(a-1);
int dT2 = dS2+2*b2;
fill_ellipse_points(x, y, x1, y1, pixel);
do {
if (S < 0) {
S += dS1;
T += dT1;
dS1 += 4*a2;
dT1 += 4*a2;
y1++;
fill_ellipse_points(x, y, x1, y1, pixel);
} else if (T < 0) {
S += dS1+dS2;
T += dT1+dT2;
dS1 += 4*a2;
dT1 += 4*a2;
dS2 += 4*b2;
dT2 += 4*b2;
x1--;
if (x1 < 0)
break;
y1++;
fill_ellipse_points(x, y, x1, y1, pixel);
} else {
S += dS2;
T += dT2;
dS2 += 4*b2;
dT2 += 4*b2;
x1--;
}
} while (x1 > 0);
}
}
}
int main(){
//Standard start to triangle
struct triangulateio in;
struct triangulateio out;
struct triangulateio *vorout = (struct triangulateio *) NULL;
char Switches[] = "pq30a0.1z";
//Initialize the the arrays that will be used to pass data to triangle and to
//take data from triangle
init_triangleio( &in);
init_triangleio( &out);
//fill the circle for points
fill_circle( &in, 50, 3.0);
//Execute triangulate
triangulate( Switches, &in, &out, vorout);
//Initialize the variable for the the final summation
tripoint triangle;
double element;
//Print he triangle, the nodes associated with that triangle and the moving sum
// of the elements
printf("Number of Triangles: %i\n", out.numberoftriangles);
for(int i = 0; i < out.numberoftriangles; i++){
printf("Triangle %i: ",i);
for(int j = 0; j < out.numberofcorners; j++){
printf("\t %d", out.trianglelist[i*out.numberofcorners + j]);
if(j % 3 == 0){
triangle.a = out.trianglelist[i*out.numberofcorners + j];
} else if(j % 3 == 1){
triangle.b = out.trianglelist[i*out.numberofcorners + j];
} else {
triangle.c = out.trianglelist[i*out.numberofcorners + j];
}
}
printf("\n");
printf("\t %d %d %d \n", triangle.a, triangle.b, triangle.c);
element += passPoints(triangle, out.pointlist, 3.0);
printf("Element: %f", element);
printf("\n");
}
printf("The integration over this mesh is %f \n", element);
//Freeing the arrays
free_circle( &in);
free_circle( &out);
// trifree( &out);
return 0;
}
/* Remplit un cercle de centre (x, y) et de rayon r */
void CerclePlein(int x, int y, int r) {
fill_circle(fenetreCourante, x, y, r);
}
void Canvas::fill_circle(float center_x, float center_y, float radius, const Colorf &color)
{
fill_circle(Pointf(center_x, center_y), Pointf(center_x, center_y), radius, Gradient(color, color));
}
void Canvas::fill_circle(const Pointf ¢er, float radius, const Colorf &color)
{
fill_circle(center, center, radius, Gradient(color, color));
}
void draw_points(point *points, int numpoints, int *cluster_centersx, int *cluster_centersy, int clusters)
{
SDL_Rect rect = {0, 0, WINW, WINH};
SDL_FillRect(screen, &rect, WHITE);
//Draw axis
#ifdef WANT_AXIS_DRAWN
#ifdef WANT_MEAN_AXIS
int totx = 0, toty = 0;
for(int i = 0; i < numpoints; i++)
{
totx += points[i].x;
toty += points[i].y;
}
debug("Drawing axis...");
#ifdef MIRROR_Y
SDL_Rect xaxis = {0, toty/numpoints*-1+offset_y, WINW, 1};
#else
SDL_Rect xaxis = {0, toty/numpoints+offset_y, WINW, 1};
#endif
SDL_Rect yaxis = {totx/numpoints+offset_x, 0, 1, WINH};
SDL_FillRect(screen, &xaxis, BLACK);
SDL_FillRect(screen, &yaxis, BLACK);
#endif
#ifdef WANT_SPLIT_AXIS
int avgx = 0, avgy = 0, greatx=points[0].x, lowx=points[0].x, greaty=points[0].y, lowy=points[0].y;
for(int i = 0; i < numpoints; i++)
{
if(points[i].x > greatx)
greatx = points[i].x;
if(points[i].x < lowx)
lowx = points[i].x;
if(points[i].y > greaty)
greaty = points[i].y;
if(points[i].y < lowy)
lowy = points[i].y;
}
avgx = (greatx + lowx) / 2;
avgy = (greaty + lowy) / 2;
#ifdef MIRROR_Y
SDL_Rect xaxis = {0, avgy*-1+offset_y, WINW, 1};
#else
SDL_Rect xaxis = {0, avgy+offset_y, WINW, 1};
#endif
SDL_Rect yaxis = {avgx+offset_x, 0, 1, WINH};
SDL_FillRect(screen, &xaxis, BLACK);
SDL_FillRect(screen, &yaxis, BLACK);
#endif
#ifdef WANT_ORIGIN_AXIS
SDL_Rect xaxis = {0, 0+offset_y, WINW, 1};
SDL_Rect yaxis = {0+offset_x, 0, 1, WINH};
SDL_FillRect(screen, &xaxis, BLACK);
SDL_FillRect(screen, &yaxis, BLACK);
#endif
#endif
//TODO : Generate a random color for each cluster
debug("Plotting points...");
//Draw points
for(int i = 0; i < numpoints; i++)
{
#ifdef MIRROR_Y
SDL_Rect pixel = {points[i].x-2+offset_x, points[i].y*-1-2+offset_y, 5, 5};
#else
SDL_Rect pixel = {points[i].x-2+offset_x, points[i].y-2+offset_y, 5, 5};//Offset of -3 makes center pixel of 5x5 appear at x,y
#endif
switch(points[i].cluster)
{
case 0:
SDL_FillRect(screen, &pixel, RED);
break;
case 1:
SDL_FillRect(screen, &pixel, GREEN);
break;
case 2:
SDL_FillRect(screen, &pixel, BLUE);
break;
case 3:
SDL_FillRect(screen, &pixel, PINK);
break;
default:
SDL_FillRect(screen, &pixel, BLACK);
break;
}
}
//Draw Cluster Centers
#ifdef WANT_CENTERS_DRAWN
debug("Drawing cluster centers...");
for(int i = 0; i < clusters; i++)
{
#ifdef MIRROR_Y
if(cluster_centersy[i]*-1 + offset_y - 10 >= 0 && cluster_centersy[i]*-1 + offset_y + 10 <= WINH && cluster_centersx[i] + offset_x - 10 >= 0 && cluster_centersx[i] + offset_x + 10 <= WINW)
{
#else
if(cluster_centersy[i] + offset_y - 10 >= 0 && cluster_centersy[i] + offset_y + 10 <= WINH && cluster_centersx[i] + offset_x - 10 >= 0 && cluster_centersx[i] + offset_x + 10 <= WINW)
{//Causes a crash if a circle is drawn off the screen partially. I need a better circle function..
#endif
Uint32 col = 0;
if(i == 0)
col = (ALPHA | RED);
if(i == 1)
col = (ALPHA | GREEN);
if(i == 2)
col = (ALPHA | BLUE);
if(i >= 3)
col = (ALPHA | PINK);
#ifdef MIRROR_Y
fill_circle(screen, cluster_centersx[i]+offset_x, (cluster_centersy[i]*-1+offset_y), 10, col);
//std::cout << "(" << cluster_centersx[i]+offset_x << "," << (cluster_centersy[i]*-1+offset_y) << ")\n";
#else
fill_circle(screen, cluster_centersx[i]+offset_x, cluster_centersy[i]+offset_y, 10, col);
#endif
}
}
#endif
}
/*
* SDL_Surface 32-bit circle-fill algorithm without using trig
*
* While I humbly call this "Celdecea's Method", odds are that the
* procedure has already been documented somewhere long ago. All of
* the circle-fill examples I came across utilized trig functions or
* scanning neighbor pixels. This algorithm identifies the width of
* a semi-circle at each pixel height and draws a scan-line covering
* that width.
*
* The code is not optimized but very fast, owing to the fact that it
* alters pixels in the provided surface directly rather than through
* function calls.
*
* WARNING: This function does not lock surfaces before altering, so
* use SDL_LockSurface in any release situation.
*/
void fill_circle(SDL_Surface *surface, int cx, int cy, int radius, Uint32 pixel) {
// Note that there is more to altering the bitrate of this
// method than just changing this value. See how pixels are
// altered at the following web page for tips:
// http://www.libsdl.org/intro.en/usingvideo.html
static const int BPP = 4;
double r = (double)radius;
for (double dy = 1; dy <= r; dy += 1.0)
{
// This loop is unrolled a bit, only iterating through half of the
// height of the circle. The result is used to draw a scan line and
// its mirror image below it.
// The following formula has been simplified from our original. We
// are using half of the width of the circle because we are provided
// with a center and we need left/right coordinates.
double dx = floor(sqrt((2.0 * r * dy) - (dy * dy)));
int x = cx - dx;
// Grab a pointer to the left-most pixel for each half of the circle
Uint8 *target_pixel_a = (Uint8 *)surface->pixels + ((int)(cy + r - dy)) * surface->pitch + x * BPP;
Uint8 *target_pixel_b = (Uint8 *)surface->pixels + ((int)(cy - r + dy)) * surface->pitch + x * BPP;
for (; x <= cx + dx; x++)
{
*(Uint32 *)target_pixel_a = pixel;
*(Uint32 *)target_pixel_b = pixel;
target_pixel_a += BPP;
target_pixel_b += BPP;
}
}
}
int main(int argc, char** argv)
{
color_t pikachu[24][28] = {
{BLA, BLA, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, BLA, BLA},
{BLA, BLA, BLA, BLA, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, BLA, BLA, BLA, BLA},
{BLA, BLA, BLA, YEL, BLA, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, BLA, YEL, BLA, BLA, BLA},
{BLA, BLA, BLA, YEL, YEL, BLA, BLA, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, BLA, BLA, YEL, YEL, BLA, BLA, BLA},
{WHI, BLA, BLA, YEL, YEL, YEL, YEL, BLA, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, BLA, YEL, YEL, YEL, YEL, BLA, BLA, WHI},
{WHI, BLA, BLA, YEL, YEL, YEL, YEL, YEL, BLA, BLA, WHI, WHI, BLA, BLA, BLA, BLA, WHI, WHI, BLA, BLA, YEL, YEL, YEL, YEL, YEL, BLA, BLA, WHI},
{WHI, WHI, BLA, YEL, YEL, YEL, YEL, YEL, YEL, YEL, BLA, BLA, YEL, YEL, YEL, YEL, BLA, BLA, YEL, YEL, YEL, YEL, YEL, YEL, YEL, BLA, WHI, WHI},
{WHI, WHI, BLA, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, BLA, WHI, WHI},
{WHI, WHI, WHI, BLA, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, BLA, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, BLA, YEL, BLA, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, BLA, YEL, BLA, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, WHI, BLA, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, BLA, WHI, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, WHI, BLA, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, BLA, WHI, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, BLA, YEL, YEL, YEL, BLA, BLA, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, BLA, BLA, YEL, YEL, YEL, BLA, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, BLA, YEL, YEL, BLA, WHI, BLA, BLA, YEL, YEL, YEL, YEL, YEL, YEL, BLA, BLA, WHI, BLA, YEL, YEL, BLA, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, BLA, YEL, YEL, BLA, BLA, BLA, BLA, YEL, YEL, YEL, YEL, YEL, YEL, BLA, BLA, BLA, BLA, YEL, YEL, BLA, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, BLA, YEL, YEL, YEL, BLA, BLA, YEL, YEL, YEL, BLA, BLA, YEL, YEL, YEL, BLA, BLA, YEL, YEL, YEL, BLA, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, BLA, YEL, YEL, RED, RED, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, YEL, RED, RED, YEL, YEL, BLA, WHI, WHI, WHI},
{WHI, WHI, WHI, BLA, YEL, RED, RED, RED, RED, YEL, YEL, BLA, YEL, BLA, BLA, YEL, BLA, YEL, YEL, RED, RED, RED, RED, YEL, BLA, WHI, WHI, WHI},
{WHI, WHI, WHI, BLA, YEL, RED, RED, RED, RED, YEL, YEL, YEL, BLA, BLA, BLA, BLA, YEL, YEL, YEL, RED, RED, RED, RED, YEL, BLA, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, BLA, YEL, RED, RED, YEL, YEL, YEL, YEL, BLA, RED, RED, BLA, YEL, YEL, YEL, YEL, RED, RED, YEL, BLA, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, WHI, BLA, YEL, YEL, YEL, YEL, YEL, YEL, BLA, RED, RED, BLA, YEL, YEL, YEL, YEL, YEL, YEL, BLA, WHI, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, WHI, WHI, BLA, BLA, YEL, YEL, YEL, YEL, YEL, BLA, BLA, YEL, YEL, YEL, YEL, YEL, BLA, BLA, WHI, WHI, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, BLA, BLA, BLA, YEL, YEL, YEL, YEL, YEL, YEL, BLA, BLA, BLA, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI},
{WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, BLA, BLA, BLA, BLA, BLA, BLA, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI, WHI}
};
char key;
char *dance = "Let's dance!!";
char *exit = "n => EXIT";
int swip = 0;
int pika = 0;
init_graphics();
sleep_ms(20);
char* s = "Hello PIKACHU!!!";
draw_text(50, 30, s, YEL);
clear_screen();
int i, j;
/*
for (i = 0; i < 24; i++)
{
for (j = 0; j < 28; j++)
{
draw_rect((50+j*8), (50+i*8), 8, 8, pikachu[i][j]);
fill_circle((350+j*8), (50+i*8), 4, pikachu[i][j]);
}
}
*/
sleep_ms(200000000);
char* start = "Want to see pikachu dance? (y => YES; n => EXIT)";
draw_text(50, 30, s, BLA);
draw_text(50, 30, start, YEL);
for (i = 0; i < 24; i++)
{
for (j = 0; j < 28; j++)
{
draw_rect((50+j*8), (50+i*8), 8, 8, pikachu[i][j]);
fill_circle((350+j*8), (50+i*8), 4, pikachu[i][j]);
}
}
do
{
key = getkey();
if(key == 'y')
pika = 1;
if(key == 'n')
pika = 0;
if (pika == 1)
{
clear_screen();
fill_rect(50, 30, 400, 16, BLA);
fill_rect(40, 30, 600, 400, BLA);
if (swip == 0)
{
for (i = 0; i < 24; i++)
{
for (j = 0; j < 28; j++)
{
fill_circle((350+j*8), (50+i*8), 8, pikachu[i][j]);
}
}
swip = 1;
}
else
{
for (i = 23; i >= 0; i--)
{
for (j = 27; j >= 0; j--)
{
fill_circle((50+j*8), (50+i*8), 8, pikachu[i][j]);
}
}
swip = 0;
}
sleep_ms(900000000000000);
draw_text(50, 350, exit, YEL);
}
} while(key != 'n');
/*
int i, j;
for (i = 0; i < 24; i++)
{
for (j = 0; j < 28; j++)
{
draw_rect((50+j*8), (50+i*8), 8, 8, pikachu[i][j]);
fill_circle((350+j*8), (50+i*8), 4, pikachu[i][j]);
}
}
*/
char *gb = "Goodbye!! PIKAPIKACHU!!";
// draw_text(50, 30, start, BLA);
// draw_text(50, 30, dance, BLA);
draw_text(50, 350, exit, BLA);
// fill_rect(50, 30, 400, 16, BLA);
fill_rect(50, 30, 400, 16, BLA);
fill_rect(30, 20, 600, 400, BLA);
draw_text(50, 30, gb, YEL);
exit_graphics();
return 0;
}
