On 09/20/2012 09:59 AM, Robert Bragg wrote:
This adds an egl_probe_front_pixel_rgb function that is analogous to piglit_probe_pixel_rgba except it probes the front buffer instead of probing the back buffer. --- tests/egl/egl-util.c | 31 +++++++++++++++++++++++++++++++ tests/egl/egl-util.h | 4 ++++ 2 files changed, 35 insertions(+), 0 deletions(-)diff --git a/tests/egl/egl-util.c b/tests/egl/egl-util.c index 20cd699..4f06cab 100644 --- a/tests/egl/egl-util.c +++ b/tests/egl/egl-util.c @@ -37,6 +37,37 @@ static int automatic; int depth; +int +egl_probe_front_pixel_rgb(struct egl_state *state, + int x, int y, const float *expected) +{ + XImage *ximage = XGetImage(state->dpy, state->win, + x, state->height - y - 1, 1, 1, AllPlanes, ZPixmap); + unsigned long pixel = XGetPixel(ximage, 0, 0); + uint8_t *probe = (uint8_t *)&pixel; + int pass = 1; + int i; + + XDestroyImage(ximage); + + /* NB: XGetPixel returns a normalized BGRA, byte per + * component, pixel format */ + for(i = 0; i< 3; ++i) { + if (fabs(probe[2 - i]/255.0 - expected[i])> piglit_tolerance[i]) { + pass = 0; + } + } + + if (pass) + return 1; + + printf("Front Buffer Probe at (%i,%i)\n", x, y); + printf(" Expected: %f %f %f %f\n", expected[0], expected[1], expected[2], expected[3]); + printf(" Observed: %f %f %f %f\n", probe[0]/255.0, probe[1]/255.0, probe[2]/255.0, probe[3]/255.0); + + return 0; +} + void egl_init_test(struct egl_test *test) { diff --git a/tests/egl/egl-util.h b/tests/egl/egl-util.h index 87c2db3..e1caa94 100644 --- a/tests/egl/egl-util.h +++ b/tests/egl/egl-util.h @@ -62,4 +62,8 @@ egl_util_create_pixmap(struct egl_state *state, int egl_util_run(const struct egl_test *test, int argc, char *argv[]); +int +egl_probe_front_pixel_rgb(struct egl_state *state, + int x, int y, const float *expected); + #endif
For both: Reviewed-by: Brian Paul <bri...@vmware.com> _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
