IABSD.fr/xenocara/driver/xf86-video-intel/test/basic-lines.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/basic-lines.c

• #include <stdint.h>
  #include <stdio.h>
  #include <stdlib.h>
  
  #include <X11/Xutil.h> /* for XDestroyImage */
  #include <pixman.h> /* for pixman blt functions */
  
  #include "test.h"
  
  static const XPoint points[]= {
  	/* top */
  	{ 0, 0},
  	{ 1, 0},
  	{ 2, 0},
  	{ 3, 0},
  	{ 4, 0},
  	{ 5, 0},
  	{ 6, 0},
  	{ 7, 0},
  	{ 8, 0},
  	/* right */
  	{ 8, 1},
  	{ 8, 2},
  	{ 8, 3},
  	{ 8, 4},
  	{ 8, 5},
  	{ 8, 6},
  	{ 8, 7},
  	{ 8, 8},
  	/* bottom */
  	{ 7, 8},
  	{ 6, 8},
  	{ 5, 8},
  	{ 4, 8},
  	{ 3, 8},
  	{ 2, 8},
  	{ 1, 8},
  	{ 0, 8},
  	/* left */
  	{ 0, 7},
  	{ 0, 6},
  	{ 0, 5},
  	{ 0, 4},
  	{ 0, 3},
  	{ 0, 2},
  	{ 0, 1},
  	{ 0, 0} /* and origin again for luck */
  };
  #define NUM_POINTS (sizeof(points)/sizeof(points[0]))
  
  static void clear(struct test_display *dpy, struct test_target *tt)
  {
  	XRenderColor render_color = {0};
  	XRenderFillRectangle(dpy->dpy, PictOpClear, tt->picture, &render_color,
  			     0, 0, tt->width, tt->height);
  }
  
  static void draw_line(struct test_display *dpy, struct test_target *tt,
  		      int alu, int width, int style, int cap,
  		      const XPoint *p1, const XPoint *p2,
  		      int dx, int dy)
  {
  	XGCValues val;
  	GC gc;
  
  	val.function = GXcopy;
  	val.foreground = WhitePixel(dpy->dpy, 0);
  	val.line_width = width;
  	val.line_style = style;
  	val.cap_style = cap;
  
  	gc = XCreateGC(dpy->dpy, tt->draw,
  		       GCForeground |
  		       GCFunction |
  		       GCLineWidth |
  		       GCLineStyle |
  		       GCCapStyle,
  		       &val);
  	XDrawLine(dpy->dpy, tt->draw, gc,
  		  p1->x + dx, p1->y + dy,
  		  p2->x + dx, p2->y + dy);
  	XFreeGC(dpy->dpy, gc);
  }
  
  static void line_tests(struct test *t, enum target target)
  {
  	char buf[1024];
  	struct test_target out, ref;
  	int a, b, alu, lw, style, cap;
  
  	printf("Testing drawing of single line segments (%s): ",
  	       test_target_name(target));
  	fflush(stdout);
  
  	test_target_create_render(&t->out, target, &out);
  	test_target_create_render(&t->ref, target, &ref);
  
  	style = LineSolid;
  
  	for (alu = 0; alu < 16; alu++) {
  		for (cap = CapNotLast; cap <= CapProjecting; cap++) {
  			for (lw = 0; lw <= 4; lw++) {
  				for (a = 0; a < NUM_POINTS; a++) {
  					for (b = 0; b < NUM_POINTS; b++) {
  						sprintf(buf,
  							"p1=(%d, %d), p2=(%d, %d), width=%d, cap=%d, alu=%d",
  							points[a].x, points[a].y,
  							points[b].x, points[b].y,
  							lw, cap, alu);
  
  						clear(&t->out, &out);
  						clear(&t->ref, &ref);
  
  						draw_line(&t->out, &out, alu, lw, style, cap,
  							  &points[a], &points[b], 64, 64);
  						draw_line(&t->ref, &ref, alu, lw, style, cap,
  							  &points[a], &points[b], 64, 64);
  
  						test_compare(t,
  							     out.draw, out.format,
  							     ref.draw, ref.format,
  							     0, 0, out.width, out.height,
  							     buf);
  					}
  				}
  			}
  		}
  	}
  
  	test_target_destroy_render(&t->out, &out);
  	test_target_destroy_render(&t->ref, &ref);
  
  	printf("\n");
  }
  
  int main(int argc, char **argv)
  {
  	struct test test;
  	enum target t;
  
  	test_init(&test, argc, argv);
  
  	for (t = TARGET_FIRST; t <= TARGET_LAST; t++)
  		line_tests(&test, t);
  
  	return 0;
  }