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Update testsprite2 for visual testing: user fuzzer and add --iteration parameter to enable deterministic screen end-state

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This commit is contained in:
Andreas Schiffler 2013-06-23 15:00:23 -07:00
parent 319984251f
commit 7827720b8b
1 changed files with 58 additions and 21 deletions
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55
test/testsprite2.c
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@ -15,6 +15,7 @@
#include <stdio.h> #include <stdio.h>
#include <time.h> #include <time.h>
#include "SDL_test.h"
#include "SDL_test_common.h" #include "SDL_test_common.h"
#define NUM_SPRITES 100 #define NUM_SPRITES 100
@ -33,6 +34,10 @@ static SDL_Rect *velocities;
static int sprite_w, sprite_h; static int sprite_w, sprite_h;
static SDL_BlendMode blendMode = SDL_BLENDMODE_BLEND; 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. */ /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
static void static void
quit(int rc) quit(int rc)
@ -105,7 +110,7 @@ LoadSprite(char *file)
void void
MoveSprites(SDL_Renderer * renderer, SDL_Texture * sprite) MoveSprites(SDL_Renderer * renderer, SDL_Texture * sprite)
{ {
int i, n; int i;
SDL_Rect viewport, temp; SDL_Rect viewport, temp;
SDL_Rect *position, *velocity; SDL_Rect *position, *velocity;
@ -191,8 +196,8 @@ MoveSprites(SDL_Renderer * renderer, SDL_Texture * sprite)
SDL_RenderDrawLine(renderer, viewport.w-sprite_w-2, sprite_h, SDL_RenderDrawLine(renderer, viewport.w-sprite_w-2, sprite_h,
sprite_w, viewport.h-sprite_h-2); sprite_w, viewport.h-sprite_h-2);
/* Move the sprite, bounce at the wall, and draw */ /* Conditionally move the sprites, bounce at the wall */
n = 0; if (iterations == -1 || iterations > 0) {
for (i = 0; i < num_sprites; ++i) { for (i = 0; i < num_sprites; ++i) {
position = &positions[i]; position = &positions[i];
velocity = &velocities[i]; velocity = &velocities[i];
@ -207,6 +212,22 @@ MoveSprites(SDL_Renderer * renderer, SDL_Texture * sprite)
position->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 */ /* Blit the sprite onto the screen */
SDL_RenderCopy(renderer, sprite, NULL, position); SDL_RenderCopy(renderer, sprite, NULL, position);
} }
@ -221,6 +242,7 @@ main(int argc, char *argv[])
int i, done; int i, done;
SDL_Event event; SDL_Event event;
Uint32 then, now, frames; Uint32 then, now, frames;
Uint64 seed;
/* Initialize parameters */ /* Initialize parameters */
num_sprites = NUM_SPRITES; num_sprites = NUM_SPRITES;
@ -255,6 +277,12 @@ main(int argc, char *argv[])
consumed = 2; 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) { } else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) {
cycle_color = SDL_TRUE; cycle_color = SDL_TRUE;
consumed = 1; consumed = 1;
@ -268,7 +296,7 @@ main(int argc, char *argv[])
} }
if (consumed < 0) { if (consumed < 0) {
fprintf(stderr, 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)); argv[0], SDLTest_CommonUsage(state));
quit(1); quit(1);
} }
@ -301,17 +329,26 @@ main(int argc, char *argv[])
fprintf(stderr, "Out of memory!\n"); fprintf(stderr, "Out of memory!\n");
quit(2); 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) { for (i = 0; i < num_sprites; ++i) {
positions[i].x = rand() % (state->window_w - sprite_w); positions[i].x = SDLTest_RandomIntegerInRange(0, state->window_w - sprite_w);
positions[i].y = rand() % (state->window_h - sprite_h); positions[i].y = SDLTest_RandomIntegerInRange(0, state->window_h - sprite_h);
positions[i].w = sprite_w; positions[i].w = sprite_w;
positions[i].h = sprite_h; positions[i].h = sprite_h;
velocities[i].x = 0; velocities[i].x = 0;
velocities[i].y = 0; velocities[i].y = 0;
while (!velocities[i].x && !velocities[i].y) { while (!velocities[i].x && !velocities[i].y) {
velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED; velocities[i].x = SDLTest_RandomIntegerInRange(-MAX_SPEED, MAX_SPEED);
velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED; velocities[i].y = SDLTest_RandomIntegerInRange(-MAX_SPEED, MAX_SPEED);
} }
} }