IABSD.fr/xenocara/driver/xf86-video-intel/test/render-copyarea-size.c

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• Author : matthieu
  Date : 2015-04-12 19:41:54
  Hash : d031df27
  Message : Update to xf86-video-intel 2.99.916 Fixes a display bug seenby ajacoutot@, ok jsg@ and kettenis@. newer X.Org (2.99.917 or master) version cause corruption on older machines (X40, i965), probably caused by a bug in our kernel, under investigation by kettenis@.

• driver/xf86-video-intel/test/render-copyarea-size.c

• #include <stdint.h>
  #include <stdio.h>
  #include <stdlib.h>
  
  #include <X11/Xutil.h> /* for XDestroyImage */
  
  #include "test.h"
  
  #define SIZE 20000
  struct draw {
  	Pixmap a, b;
  	Picture pa, pb;
  	GC gc;
  	XRenderPictFormat *format;
  };
  
  static void target_init(struct test_display *t, struct draw *tt, int size)
  {
  	XRenderColor color;
  
  	tt->format = XRenderFindStandardFormat(t->dpy, PictStandardARGB32);
  
  	tt->a = XCreatePixmap(t->dpy, DefaultRootWindow(t->dpy),
  			      size, size, tt->format->depth);
  	tt->pa = XRenderCreatePicture(t->dpy, tt->a, tt->format, 0, NULL);
  
  	color.alpha = 0xffff;
  	color.red = 0xffff;
  	color.green = 0;
  	color.blue = 0;
  	XRenderFillRectangle(t->dpy, PictOpSrc, tt->pa, &color, 0, 0, size, size);
  
  	tt->b = XCreatePixmap(t->dpy, DefaultRootWindow(t->dpy),
  			      size, size, tt->format->depth);
  	tt->pb = XRenderCreatePicture(t->dpy, tt->b, tt->format, 0, NULL);
  
  	color.alpha = 0xffff;
  	color.red = 0;
  	color.green = 0;
  	color.blue = 0xffff;
  	XRenderFillRectangle(t->dpy, PictOpSrc, tt->pb, &color, 0, 0, size, size);
  }
  
  static void target_fini(struct test_display *t, struct draw *tt)
  {
  	XRenderFreePicture(t->dpy, tt->pa);
  	XFreePixmap(t->dpy, tt->a);
  
  	XRenderFreePicture(t->dpy, tt->pb);
  	XFreePixmap(t->dpy, tt->b);
  }
  
  int main(int argc, char **argv)
  {
  	struct test test;
  	struct draw out, ref;
  	int size, i;
  
  	test_init(&test, argc, argv);
  
  	/* Copy back and forth betwenn two pixmaps, gradually getting larger */
  	for (size = 1; size <= SIZE; size = (size * 3 + 1) / 2) {
  		target_init(&test.out, &out, size);
  		target_init(&test.ref, &ref, size);
  
  		printf("size=%d\n", size);
  		for (i = 0; i <= DEFAULT_ITERATIONS; i++) {
  			int reps = REPS(i);
  			do {
  				int sx = rand() % (2*size) - size;
  				int sy = rand() % (2*size) - size;
  
  				int dx = rand() % (2*size) - size;
  				int dy = rand() % (2*size) - size;
  
  				int w = rand() % size;
  				int h = rand() % size;
  
  				int order = rand() & 1;
  
  				XRenderComposite(test.out.dpy, PictOpSrc,
  						 order ? out.pa : out.pb,
  						 0,
  						 (!order) ? out.pa : out.pb,
  						 sx, sy,
  						 0, 0,
  						 dx, dy,
  						 w, h);
  
  				XRenderComposite(test.ref.dpy, PictOpSrc,
  						 order ? ref.pa : ref.pb,
  						 0,
  						 (!order) ? ref.pa : ref.pb,
  						 sx, sy,
  						 0, 0,
  						 dx, dy,
  						 w, h);
  			} while (--reps);
  		}
  
  		test_compare(&test,
  			     out.a, out.format,
  			     ref.a, ref.format,
  			     0, 0, size, size,
  			     "");
  		test_compare(&test,
  			     out.b, out.format,
  			     ref.b, ref.format,
  			     0, 0, size, size,
  			     "");
  
  		target_fini(&test.out, &out);
  		target_fini(&test.ref, &ref);
  	}
  
  	return 0;
  }