[Piglit] [PATCH] primitive-restart: change test for new OpenGL 4.5 behavior
Mathias Fröhlich
Mathias.Froehlich at gmx.net
Wed Aug 17 05:53:24 UTC 2016
Hi,
On Monday, 15 August 2016 09:47:55 CEST Yang, Kefeng wrote:
> Patch is updated to remove the DrawArray test for GL_PRIMITIVE_RESTART,
retroactively for all GL versions.
> DrawElement test still need to be kept.
I am fine with just removing these tests also for older than 4.5 GL versions.
But for the type of tests I really meant DrawElement* calls and nothing else.
Probably the best description in the 4.5 spec is:
10.3.6 Primitive Restart
[...]
Note that primitive restart is not performed for array elements transferred by
any drawing command not taking a type parameter, including ArrayElement and
all of the *Draw* commands other than *DrawElements*.
For this test this means that only the lines calling test_draw_elements stay.
The lines from the Have_31 scope calling test_draw_arrays, as you already did,
as well as the lines calling test_array_element should go away to be
compatible with 4.5.
best
Mathias
>
> From 02c464d0d1b2f6f600e4e080835087ebe94d2f84 Mon Sep 17 00:00:00 2001
> From: Kefeng Yang <kefeng.yang at amd.com>
> Date: Mon, 15 Aug 2016 17:24:04 +0800
> Subject: [PATCH] Remove glDrawArray test for GL_PRIMITIVE_RESTART
> retroactively for all GL versions
>
> ---
> tests/general/primitive-restart.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/tests/general/primitive-restart.c b/tests/general/primitive-
restart.c
> index 5cd8be3..f946316 100644
> --- a/tests/general/primitive-restart.c
> +++ b/tests/general/primitive-restart.c
> @@ -659,7 +659,6 @@ primitive_restart_test(VBO_CFG vbo_cfg)
> pass = pass && test_array_element(vbo_cfg, GL_LINE_STRIP,
GL_UNSIGNED_BYTE);
> pass = pass && test_array_element(vbo_cfg, GL_LINE_STRIP,
GL_UNSIGNED_SHORT);
> pass = pass && test_array_element(vbo_cfg, GL_LINE_STRIP,
GL_UNSIGNED_INT);
> - pass = pass && test_draw_arrays(vbo_cfg);
> }
>
> return pass;
> --
> 1.9.1
>
>
> Cheers,
> Kefeng
>
> -----Original Message-----
> From: Mathias Fröhlich [mailto:Mathias.Froehlich at gmx.net]
> Sent: Saturday, August 13, 2016 4:36 PM
> To: piglit at lists.freedesktop.org
> Cc: Nicolai Hähnle; Yang, Kefeng
> Subject: Re: [Piglit] [PATCH] primitive-restart: change test for new OpenGL
4.5 behavior
>
> On Thursday, 11 August 2016 13:11:38 CEST Nicolai Hähnle wrote:
> > From: "Yang, Kefeng" <Kefeng.Yang at amd.com>
> >
> > With OpenGL 4.5, the spec was changed to remove primitive restart from
> > glDrawArrays and friends.
>
> Ok, I have now spotted a difference between the 4.4 and 4.5 specs.
> But it appears to me that primitive restart is basically staying, but is
reduced to these cases that actually make sense somehow.
>
> That is, primitive restart *stays* for all DrawElements calls and vanishes
for almost all other cases.
>
> So, the test should still test the DrawElement calls as before - also for gl
> >= 4.5.
>
> best
> Mathias
>
> > ---
> > tests/general/primitive-restart.c | 12 +++++++-----
> > 1 file changed, 7 insertions(+), 5 deletions(-)
> >
> > diff --git a/tests/general/primitive-restart.c
> > b/tests/general/primitive-
> restart.c
> > index 5cd8be3..48c2a11 100644
> > --- a/tests/general/primitive-restart.c
> > +++ b/tests/general/primitive-restart.c
> > @@ -63,21 +63,21 @@ static char* vbo_cfg_names[] = {
> > "all",
> > };
> >
> > static VBO_CFG vbo_init_cfg = DISABLE_VBO;
> >
> > static const GLfloat red[4] = {1.0, 0.0, 0.0, 1.0}; static const
> > GLfloat green[4] = {0.0, 1.0, 0.0, 0.0}; static const GLfloat
> > black[4] = {0.0, 0.0, 0.0, 0.0};
> >
> > static bool Have_NV;
> > -static bool Have_31;
> > +static bool Have_31_to_44;
> > static bool TestGL31;
> >
> >
> > static bool
> > check_rendering(void)
> > {
> > const GLfloat x0 = 0.0, x1 = piglit_width - 10.0, dx = 20.0;
> > const GLint iy = piglit_height / 2;
> > bool draw = true;
> > GLfloat x;
> > @@ -638,21 +638,21 @@ primitive_restart_test(VBO_CFG vbo_cfg)
> > pass = pass && test_draw_elements(vbo_cfg, GL_LINE_STRIP,
> GL_UNSIGNED_INT);
> > pass = pass && test_array_element(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_BYTE);
> > pass = pass && test_array_element(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_SHORT);
> > pass = pass && test_array_element(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_INT);
> > pass = pass && test_array_element(vbo_cfg, GL_LINE_STRIP,
> GL_UNSIGNED_BYTE);
> > pass = pass && test_array_element(vbo_cfg, GL_LINE_STRIP,
> GL_UNSIGNED_SHORT);
> > pass = pass && test_array_element(vbo_cfg, GL_LINE_STRIP,
> GL_UNSIGNED_INT);
> > pass = pass && test_draw_arrays(vbo_cfg);
> > }
> >
> > - if (Have_31) {
> > + if (Have_31_to_44) {
> > TestGL31 = true;
> > pass = pass && test_draw_elements(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_BYTE);
> > pass = pass && test_draw_elements(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_SHORT);
> > pass = pass && test_draw_elements(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_INT);
> > pass = pass && test_draw_elements(vbo_cfg, GL_LINE_STRIP,
> GL_UNSIGNED_BYTE);
> > pass = pass && test_draw_elements(vbo_cfg, GL_LINE_STRIP,
> GL_UNSIGNED_SHORT);
> > pass = pass && test_draw_elements(vbo_cfg, GL_LINE_STRIP,
> GL_UNSIGNED_INT);
> > pass = pass && test_array_element(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_BYTE);
> > pass = pass && test_array_element(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_SHORT);
> > pass = pass && test_array_element(vbo_cfg, GL_TRIANGLE_STRIP,
> GL_UNSIGNED_INT);
> > @@ -680,35 +680,37 @@ piglit_display(void)
> > } else {
> > return primitive_restart_test(vbo_init_cfg) ? PIGLIT_PASS :
> PIGLIT_FAIL;
> > }
> > }
> >
> >
> > void
> > piglit_init(int argc, char **argv)
> > {
> > Have_NV = piglit_is_extension_supported("GL_NV_primitive_restart");
> > - Have_31 = piglit_get_gl_version() >= 31;
> > +
> > + //In OGL 4.5, the PRIMITIVE_RESTART feature for DA-style draws is
> deprecated
> > + Have_31_to_44 = piglit_get_gl_version() >= 31 &&
> > + piglit_get_gl_version()
> <= 44;
> >
> > if (argc >= 2) {
> > VBO_CFG vbo_cfg;
> > for (vbo_cfg = 0; vbo_cfg < ARRAY_SIZE(vbo_cfg_names); vbo_cfg++) {
> > if (strcmp(argv[1], vbo_cfg_names[vbo_cfg]) == 0) {
> > vbo_init_cfg = vbo_cfg;
> > break;
> > }
> > }
> > }
> >
> > /* Debug */
> > if (0) {
> > printf("Have NV: %d\n", Have_NV);
> > - printf("Have 31: %d\n", Have_31);
> > + printf("Have 31 to 44: %d\n", Have_31_to_44);
> > }
> >
> > - if (!Have_NV && !Have_31) {
> > + if (!Have_NV && !Have_31_to_44) {
> > piglit_report_result(PIGLIT_SKIP);
> > exit(1);
> > }
> >
> > glClearColor(0, 0, 0, 0);
> > }
> >
>
>
>
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