mirror of https://github.com/PCSX2/pcsx2.git
326 lines
9.2 KiB
C
326 lines
9.2 KiB
C
|
|
/* Simple program: draw as many random objects on the screen as possible */
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
|
|
#include "common.h"
|
|
|
|
#define SWAP(typ,a,b) do{typ t=a;a=b;b=t;}while(0)
|
|
#define NUM_OBJECTS 100
|
|
|
|
static CommonState *state;
|
|
static int num_objects;
|
|
static SDL_bool cycle_color;
|
|
static SDL_bool cycle_alpha;
|
|
static int cycle_direction = 1;
|
|
static int current_alpha = 255;
|
|
static int current_color = 255;
|
|
static SDL_BlendMode blendMode = SDL_BLENDMODE_NONE;
|
|
|
|
void
|
|
DrawPoints(SDL_Renderer * renderer)
|
|
{
|
|
int i;
|
|
int x, y;
|
|
SDL_Rect viewport;
|
|
|
|
/* Query the sizes */
|
|
SDL_RenderGetViewport(renderer, &viewport);
|
|
|
|
for (i = 0; i < num_objects * 4; ++i) {
|
|
/* Cycle the color and alpha, if desired */
|
|
if (cycle_color) {
|
|
current_color += cycle_direction;
|
|
if (current_color < 0) {
|
|
current_color = 0;
|
|
cycle_direction = -cycle_direction;
|
|
}
|
|
if (current_color > 255) {
|
|
current_color = 255;
|
|
cycle_direction = -cycle_direction;
|
|
}
|
|
}
|
|
if (cycle_alpha) {
|
|
current_alpha += cycle_direction;
|
|
if (current_alpha < 0) {
|
|
current_alpha = 0;
|
|
cycle_direction = -cycle_direction;
|
|
}
|
|
if (current_alpha > 255) {
|
|
current_alpha = 255;
|
|
cycle_direction = -cycle_direction;
|
|
}
|
|
}
|
|
SDL_SetRenderDrawColor(renderer, 255, (Uint8) current_color,
|
|
(Uint8) current_color, (Uint8) current_alpha);
|
|
|
|
x = rand() % viewport.w;
|
|
y = rand() % viewport.h;
|
|
SDL_RenderDrawPoint(renderer, x, y);
|
|
}
|
|
}
|
|
|
|
#define MAX_LINES 16
|
|
int num_lines = 0;
|
|
SDL_Rect lines[MAX_LINES];
|
|
static int
|
|
add_line(int x1, int y1, int x2, int y2)
|
|
{
|
|
if (num_lines >= MAX_LINES)
|
|
return 0;
|
|
if ((x1 == x2) && (y1 == y2))
|
|
return 0;
|
|
|
|
printf("adding line (%d, %d), (%d, %d)\n", x1, y1, x2, y2);
|
|
lines[num_lines].x = x1;
|
|
lines[num_lines].y = y1;
|
|
lines[num_lines].w = x2;
|
|
lines[num_lines].h = y2;
|
|
|
|
return ++num_lines;
|
|
}
|
|
|
|
|
|
void
|
|
DrawLines(SDL_Renderer * renderer)
|
|
{
|
|
int i;
|
|
int x1, y1, x2, y2;
|
|
SDL_Rect viewport;
|
|
|
|
/* Query the sizes */
|
|
SDL_RenderGetViewport(renderer, &viewport);
|
|
|
|
SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
|
|
|
|
for (i = 0; i < num_lines; ++i) {
|
|
if (i == -1) {
|
|
SDL_RenderDrawLine(renderer, 0, 0, viewport.w - 1, viewport.h - 1);
|
|
SDL_RenderDrawLine(renderer, 0, viewport.h - 1, viewport.w - 1, 0);
|
|
SDL_RenderDrawLine(renderer, 0, viewport.h / 2, viewport.w - 1, viewport.h / 2);
|
|
SDL_RenderDrawLine(renderer, viewport.w / 2, 0, viewport.w / 2, viewport.h - 1);
|
|
} else {
|
|
SDL_RenderDrawLine(renderer, lines[i].x, lines[i].y, lines[i].w, lines[i].h);
|
|
}
|
|
}
|
|
}
|
|
|
|
#define MAX_RECTS 16
|
|
int num_rects = 0;
|
|
SDL_Rect rects[MAX_RECTS];
|
|
static int
|
|
add_rect(int x1, int y1, int x2, int y2)
|
|
{
|
|
if (num_rects >= MAX_RECTS)
|
|
return 0;
|
|
if ((x1 == x2) || (y1 == y2))
|
|
return 0;
|
|
|
|
if (x1 > x2)
|
|
SWAP(int, x1, x2);
|
|
if (y1 > y2)
|
|
SWAP(int, y1, y2);
|
|
|
|
printf("adding rect (%d, %d), (%d, %d) [%dx%d]\n", x1, y1, x2, y2,
|
|
x2 - x1, y2 - y1);
|
|
|
|
rects[num_rects].x = x1;
|
|
rects[num_rects].y = y1;
|
|
rects[num_rects].w = x2 - x1;
|
|
rects[num_rects].h = y2 - y1;
|
|
|
|
return ++num_rects;
|
|
}
|
|
|
|
static void
|
|
DrawRects(SDL_Renderer * renderer)
|
|
{
|
|
SDL_SetRenderDrawColor(renderer, 255, 127, 0, 255);
|
|
SDL_RenderFillRects(renderer, rects, num_rects);
|
|
}
|
|
|
|
static void
|
|
DrawRectLineIntersections(SDL_Renderer * renderer)
|
|
{
|
|
int i, j;
|
|
|
|
SDL_SetRenderDrawColor(renderer, 0, 255, 55, 255);
|
|
|
|
for (i = 0; i < num_rects; i++)
|
|
for (j = 0; j < num_lines; j++) {
|
|
int x1, y1, x2, y2;
|
|
SDL_Rect r;
|
|
|
|
r = rects[i];
|
|
x1 = lines[j].x;
|
|
y1 = lines[j].y;
|
|
x2 = lines[j].w;
|
|
y2 = lines[j].h;
|
|
|
|
if (SDL_IntersectRectAndLine(&r, &x1, &y1, &x2, &y2)) {
|
|
SDL_RenderDrawLine(renderer, x1, y1, x2, y2);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
DrawRectRectIntersections(SDL_Renderer * renderer)
|
|
{
|
|
int i, j;
|
|
|
|
SDL_SetRenderDrawColor(renderer, 255, 200, 0, 255);
|
|
|
|
for (i = 0; i < num_rects; i++)
|
|
for (j = i + 1; j < num_rects; j++) {
|
|
SDL_Rect r;
|
|
if (SDL_IntersectRect(&rects[i], &rects[j], &r)) {
|
|
SDL_RenderFillRect(renderer, &r);
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int mouse_begin_x = -1, mouse_begin_y = -1;
|
|
int i, done;
|
|
SDL_Event event;
|
|
Uint32 then, now, frames;
|
|
|
|
/* Initialize parameters */
|
|
num_objects = NUM_OBJECTS;
|
|
|
|
/* Initialize test framework */
|
|
state = CommonCreateState(argv, SDL_INIT_VIDEO);
|
|
if (!state) {
|
|
return 1;
|
|
}
|
|
for (i = 1; i < argc;) {
|
|
int consumed;
|
|
|
|
consumed = CommonArg(state, i);
|
|
if (consumed == 0) {
|
|
consumed = -1;
|
|
if (SDL_strcasecmp(argv[i], "--blend") == 0) {
|
|
if (argv[i + 1]) {
|
|
if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
|
|
blendMode = SDL_BLENDMODE_NONE;
|
|
consumed = 2;
|
|
} else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) {
|
|
blendMode = SDL_BLENDMODE_BLEND;
|
|
consumed = 2;
|
|
} else if (SDL_strcasecmp(argv[i + 1], "add") == 0) {
|
|
blendMode = SDL_BLENDMODE_ADD;
|
|
consumed = 2;
|
|
} else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) {
|
|
blendMode = SDL_BLENDMODE_MOD;
|
|
consumed = 2;
|
|
}
|
|
}
|
|
} else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) {
|
|
cycle_color = SDL_TRUE;
|
|
consumed = 1;
|
|
} else if (SDL_strcasecmp(argv[i], "--cyclealpha") == 0) {
|
|
cycle_alpha = SDL_TRUE;
|
|
consumed = 1;
|
|
} else if (SDL_isdigit(*argv[i])) {
|
|
num_objects = SDL_atoi(argv[i]);
|
|
consumed = 1;
|
|
}
|
|
}
|
|
if (consumed < 0) {
|
|
fprintf(stderr,
|
|
"Usage: %s %s [--blend none|blend|add|mod] [--cyclecolor] [--cyclealpha]\n",
|
|
argv[0], CommonUsage(state));
|
|
return 1;
|
|
}
|
|
i += consumed;
|
|
}
|
|
if (!CommonInit(state)) {
|
|
return 2;
|
|
}
|
|
|
|
/* Create the windows and initialize the renderers */
|
|
for (i = 0; i < state->num_windows; ++i) {
|
|
SDL_Renderer *renderer = state->renderers[i];
|
|
SDL_SetRenderDrawBlendMode(renderer, blendMode);
|
|
SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
|
|
SDL_RenderClear(renderer);
|
|
}
|
|
|
|
srand(time(NULL));
|
|
|
|
/* Main render loop */
|
|
frames = 0;
|
|
then = SDL_GetTicks();
|
|
done = 0;
|
|
while (!done) {
|
|
/* Check for events */
|
|
++frames;
|
|
while (SDL_PollEvent(&event)) {
|
|
CommonEvent(state, &event, &done);
|
|
switch (event.type) {
|
|
case SDL_MOUSEBUTTONDOWN:
|
|
mouse_begin_x = event.button.x;
|
|
mouse_begin_y = event.button.y;
|
|
break;
|
|
case SDL_MOUSEBUTTONUP:
|
|
if (event.button.button == 3)
|
|
add_line(mouse_begin_x, mouse_begin_y, event.button.x,
|
|
event.button.y);
|
|
if (event.button.button == 1)
|
|
add_rect(mouse_begin_x, mouse_begin_y, event.button.x,
|
|
event.button.y);
|
|
break;
|
|
case SDL_KEYDOWN:
|
|
switch (event.key.keysym.sym) {
|
|
case 'l':
|
|
if (event.key.keysym.mod & KMOD_SHIFT)
|
|
num_lines = 0;
|
|
else
|
|
add_line(rand() % 640, rand() % 480, rand() % 640,
|
|
rand() % 480);
|
|
break;
|
|
case 'r':
|
|
if (event.key.keysym.mod & KMOD_SHIFT)
|
|
num_rects = 0;
|
|
else
|
|
add_rect(rand() % 640, rand() % 480, rand() % 640,
|
|
rand() % 480);
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
for (i = 0; i < state->num_windows; ++i) {
|
|
SDL_Renderer *renderer = state->renderers[i];
|
|
SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
|
|
SDL_RenderClear(renderer);
|
|
|
|
DrawRects(renderer);
|
|
DrawPoints(renderer);
|
|
DrawRectRectIntersections(renderer);
|
|
DrawLines(renderer);
|
|
DrawRectLineIntersections(renderer);
|
|
|
|
SDL_RenderPresent(renderer);
|
|
}
|
|
}
|
|
|
|
CommonQuit(state);
|
|
|
|
/* Print out some timing information */
|
|
now = SDL_GetTicks();
|
|
if (now > then) {
|
|
double fps = ((double) frames * 1000) / (now - then);
|
|
printf("%2.2f frames per second\n", fps);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|