Carl Worth <[email protected]> writes: > Verifying that once one occlusion query has results, that all previous > queries also have results available. (In particular, the final query > includes not drawing.)
> +add_plain_test(arb_occlusion_query, 'occlusion_query_order')
concurrent.
> +/**
> + * \file occlusion_query_order.c
> + *
> + * Verify that once one occlusion query has results, all previous
> + * occlusion queries also have results available.
A spec quote here would be nice, since it's a bit of a surprising
requirement.
> +static void
> +draw_some_things(double frac)
> +{
> + int i;
> + float x, y;
> +
> + x = 0.0;
> + y = frac * piglit_height;
> +
> + glBegin(GL_QUADS);
> +
> + for (i=0; i < 1024; i++) {
> + glVertex3f(x, y, 0.0);
> + glVertex3f(x + 1, y, 0.0);
> + glVertex3f(x + 1, y + 1, 0.0);
> + glVertex3f(x, y + 1, 0.0);
> +
> + x++;
> + if (x >= piglit_width) {
> + x = 0.0;
> + y++;
> + }
> + }
> +
> + glEnd();
> +}
Does the whole window end up getting drawn? I didn't see a glClear(),
but it's not immediately obvious. Actually, I don't see an ortho call,
so these coordinates are all goofy if the code is doing what I think
it's trying to.
> + glColor3ub(0x00, 0xff, 0x00);
We tend to use glColor4f() so people don't have to think in ubytes all
the time.
> + /* At this point, the results of all the previous queries
> + * should be available.
> + */
> + for (i = 0; i < NUM_QUERIES - 1; i++)
> + {
> + glGetQueryObjectuiv(queries[i], GL_QUERY_RESULT_AVAILABLE,
> + &available);
> + if (available != 1) {
> + printf("Query #%d result not available (expected
> in-order processing)\n", i);
> + test_pass = 0;
stderr, and bool result value.
> +void
> +piglit_init(int argc, char **argv)
> +{
> + GLint query_bits;
> +
> + if (piglit_get_gl_version() < 15 &&
> + ! piglit_is_extension_supported("GL_ARB_occlusion_query"))
> + {
> + piglit_report_result(PIGLIT_SKIP);
> + }
require_extension
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