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Update testsprite2 for visual testing: user fuzzer and add --iteratio…

…n parameter to enable deterministic screen end-state
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ferzkopp committed Jun 23, 2013
1 parent 5f8e34e commit ad874ac164e9e9fc9d911a5f4de35b5b0a3fb05a
Showing with 56 additions and 19 deletions.
  1. +56 −19 test/testsprite2.c
@@ -15,6 +15,7 @@
#include <stdio.h>
#include <time.h>

#include "SDL_test.h"
#include "SDL_test_common.h"

#define NUM_SPRITES 100
@@ -33,6 +34,10 @@ static SDL_Rect *velocities;
static int sprite_w, sprite_h;
static SDL_BlendMode blendMode = SDL_BLENDMODE_BLEND;

/* Number of iterations to move sprites - used for visual tests. */
/* -1: infinite random moves (default); >=0: enables N deterministic moves */
static int iterations = -1;

/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
static void
quit(int rc)
@@ -105,7 +110,7 @@ LoadSprite(char *file)
void
MoveSprites(SDL_Renderer * renderer, SDL_Texture * sprite)
{
int i, n;
int i;
SDL_Rect viewport, temp;
SDL_Rect *position, *velocity;

@@ -191,22 +196,38 @@ MoveSprites(SDL_Renderer * renderer, SDL_Texture * sprite)
SDL_RenderDrawLine(renderer, viewport.w-sprite_w-2, sprite_h,
sprite_w, viewport.h-sprite_h-2);

/* Move the sprite, bounce at the wall, and draw */
n = 0;
for (i = 0; i < num_sprites; ++i) {
position = &positions[i];
velocity = &velocities[i];
position->x += velocity->x;
if ((position->x < 0) || (position->x >= (viewport.w - sprite_w))) {
velocity->x = -velocity->x;
/* Conditionally move the sprites, bounce at the wall */
if (iterations == -1 || iterations > 0) {
for (i = 0; i < num_sprites; ++i) {
position = &positions[i];
velocity = &velocities[i];
position->x += velocity->x;
}
position->y += velocity->y;
if ((position->y < 0) || (position->y >= (viewport.h - sprite_h))) {
velocity->y = -velocity->y;
if ((position->x < 0) || (position->x >= (viewport.w - sprite_w))) {
velocity->x = -velocity->x;
position->x += velocity->x;
}
position->y += velocity->y;
if ((position->y < 0) || (position->y >= (viewport.h - sprite_h))) {
velocity->y = -velocity->y;
position->y += velocity->y;
}

}

/* Countdown sprite-move iterations and disable color changes at iteration end - used for visual tests. */
if (iterations > 0) {
iterations--;
if (iterations == 0) {
cycle_alpha = SDL_FALSE;
cycle_color = SDL_FALSE;
}
}
}

/* Draw sprites */
for (i = 0; i < num_sprites; ++i) {
position = &positions[i];

/* Blit the sprite onto the screen */
SDL_RenderCopy(renderer, sprite, NULL, position);
}
@@ -221,6 +242,7 @@ main(int argc, char *argv[])
int i, done;
SDL_Event event;
Uint32 then, now, frames;
Uint64 seed;

/* Initialize parameters */
num_sprites = NUM_SPRITES;
@@ -255,6 +277,12 @@ main(int argc, char *argv[])
consumed = 2;
}
}
} else if (SDL_strcasecmp(argv[i], "--iterations") == 0) {
if (argv[i + 1]) {
iterations = SDL_atoi(argv[i + 1]);
if (iterations < -1) iterations = -1;
consumed = 2;
}
} else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) {
cycle_color = SDL_TRUE;
consumed = 1;
@@ -268,7 +296,7 @@ main(int argc, char *argv[])
}
if (consumed < 0) {
fprintf(stderr,
"Usage: %s %s [--blend none|blend|add|mod] [--cyclecolor] [--cyclealpha]\n",
"Usage: %s %s [--blend none|blend|add|mod] [--cyclecolor] [--cyclealpha] [--iterations N]\n",
argv[0], SDLTest_CommonUsage(state));
quit(1);
}
@@ -301,17 +329,26 @@ main(int argc, char *argv[])
fprintf(stderr, "Out of memory!\n");
quit(2);
}
srand((unsigned int)time(NULL));

/* Position sprites and set their velocities using the fuzzer */
if (iterations >= 0) {
/* Deterministic seed - used for visual tests */
seed = (Uint64)iterations;
} else {
/* Pseudo-random seed generated from the time */
seed = (Uint64)time(NULL);
}
SDLTest_FuzzerInit(seed);
for (i = 0; i < num_sprites; ++i) {
positions[i].x = rand() % (state->window_w - sprite_w);
positions[i].y = rand() % (state->window_h - sprite_h);
positions[i].x = SDLTest_RandomIntegerInRange(0, state->window_w - sprite_w);
positions[i].y = SDLTest_RandomIntegerInRange(0, state->window_h - sprite_h);
positions[i].w = sprite_w;
positions[i].h = sprite_h;
velocities[i].x = 0;
velocities[i].y = 0;
while (!velocities[i].x && !velocities[i].y) {
velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
velocities[i].x = SDLTest_RandomIntegerInRange(-MAX_SPEED, MAX_SPEED);
velocities[i].y = SDLTest_RandomIntegerInRange(-MAX_SPEED, MAX_SPEED);
}
}

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