Attachment 21287 Details for Bug 19169 – Patch to glxgears that adds a teartest.

[patch] Patch to glxgears that adds a teartest.

glxgears.patch (text/plain), 2.64 KB, created by peter garrone on 2008-12-18 16:57:25 UTC

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Creator: peter garrone

Created: 2008-12-18 16:57:25 UTC

Size: 2.64 KB

patch

obsolete

>diff --git a/progs/xdemos/glxgears.c b/progs/xdemos/glxgears.c
>index 8db717f..52c697f 100644
>--- a/progs/xdemos/glxgears.c
>+++ b/progs/xdemos/glxgears.c
>@@ -100,6 +100,7 @@ static GLfloat angle = 0.0;
> static GLboolean fullscreen = GL_FALSE;	/* Create a single fullscreen window */
> static GLboolean stereo = GL_FALSE;	/* Enable stereo.  */
> static GLboolean animate = GL_TRUE;	/* Animation */
>+static GLboolean teartest = GL_FALSE;	/* Run a tear test. */
> static GLfloat eyesep = 5.0;		/* Eye separation. */
> static GLfloat fix_point = 40.0;	/* Fixation point distance.  */
> static GLfloat left, right, asp;	/* Stereo frustum params.  */
>@@ -312,7 +313,53 @@ draw_gears(void)
>       draw();
>    }
> }
>-
>+void draw_tear_test(int n)
>+{
>+	GLint params[4];
>+	GLint matrixmode;
>+	GLboolean depthtest;
>+	GLboolean lighting;
>+	int bw = 10;
>+	int w,h,x0;
>+	glGetIntegerv(GL_VIEWPORT, params);
>+	glGetIntegerv(GL_MATRIX_MODE, &matrixmode);
>+	glGetBooleanv(GL_DEPTH_TEST, &depthtest);
>+	glGetBooleanv(GL_LIGHTING, &lighting);
>+	if(depthtest)glDisable(GL_DEPTH_TEST);
>+	if(lighting)glDisable(GL_LIGHTING);
>+	w = params[2];
>+	h = params[3];
>+	glMatrixMode(GL_PROJECTION);
>+	glPushMatrix();
>+	glLoadIdentity();
>+	glOrtho(0, w, h, 0, 0, 1);
>+	glMatrixMode(GL_MODELVIEW);
>+	glPushMatrix();
>+	glLoadIdentity();
>+
>+	if (n & 1)glColor3f(1.0,1.0,1.0);
>+	else glColor3f(0,0,0);
>+
>+	glBegin(GL_QUADS);
>+	glVertex2i(0, 0);
>+	glVertex2i(0, h);
>+	glVertex2i(bw, h);
>+	glVertex2i(bw, 0);
>+
>+	x0 = w - bw;
>+	glVertex2i(x0, 0);
>+	glVertex2i(x0, h);
>+	glVertex2i(x0 + w, h);
>+	glVertex2i(x0 + w, 0);
>+	glEnd();
>+
>+	glPopMatrix();
>+	glMatrixMode(GL_PROJECTION);
>+	glPopMatrix();
>+	glMatrixMode(matrixmode);
>+	if(depthtest)glEnable(GL_DEPTH_TEST);
>+	if(lighting)glEnable(GL_LIGHTING);
>+}
> 
> /** Draw single frame, do SwapBuffers, compute FPS */
> static void
>@@ -335,6 +382,7 @@ draw_frame(Display *dpy, Window win)
>    }
> 
>    draw_gears();
>+   if(teartest)draw_tear_test(frames);
>    glXSwapBuffers(dpy, win);
> 
>    frames++;
>@@ -637,6 +685,7 @@ usage(void)
>    printf("  -fullscreen             run in fullscreen mode\n");
>    printf("  -info                   display OpenGL renderer info\n");
>    printf("  -geometry WxH+X+Y       window geometry\n");
>+   printf("  -teartest               Output small alternately colored sidebars.\n");
> }
>  
> 
>@@ -666,6 +715,9 @@ main(int argc, char *argv[])
>       else if (strcmp(argv[i], "-fullscreen") == 0) {
>          fullscreen = GL_TRUE;
>       }
>+      else if (strcmp(argv[i], "-teartest") == 0) {
>+         teartest = GL_TRUE;
>+      }
>       else if (i < argc-1 && strcmp(argv[i], "-geometry") == 0) {
>          XParseGeometry(argv[i+1], &x, &y, &winWidth, &winHeight);
>          i++;
>

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