[igt-dev] [PATCH i-g-t v1] tests/kms_color: MPO + pipe color test - test for gamma LUT transformation using two planes.

[Sharma, Ananya]

Hi Swati,

Thank you for looking into this, will do the required changes as mentioned and will resubmit the patch.

-Ananya Sharma 
-----Original Message-----
From: Sharma, Swati2 <swati2.sharma at intel.com> 
Sent: Friday, April 8, 2022 11:35 PM
To: Sharma, Ananya <ananya.sharma at intel.com>; igt-dev at lists.freedesktop.org
Subject: Re: [igt-dev] [PATCH i-g-t v1] tests/kms_color: MPO + pipe color test - test for gamma LUT transformation using two planes.

Hi Ananya,

Why such a long patch subject? Please reduce.
Also, indentation is complete off. Please correct.
There seems to be build failure for the patch. Check that too.

Correct these 3 things first, before proceeding for reviews.

On 08-Apr-22 2:12 PM, Ananya Sharma wrote:
> Signed-off-by: Ananya Sharma <ananya.sharma at intel.com>
> ---
>   tests/kms_color.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++-
>   1 file changed, 95 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/kms_color.c b/tests/kms_color.c index 
> 775f3596..c520cd5a 100644
> --- a/tests/kms_color.c
> +++ b/tests/kms_color.c
> @@ -111,7 +111,95 @@ static void test_pipe_degamma(data_t *data,
>   	free_lut(degamma_linear);
>   	free_lut(degamma_full);
>   }
> +static void test_pipe_gamma_multiplane(data_t *data,
> +                            igt_plane_t *primary, igt_plane_t 
> +*overlay) {
> +	igt_output_t *output;
> +        igt_display_t *display = &data->display;
> +        gamma_lut_t *gamma_full;
> +        color_t red_green_blue[] = {
> +                { 1.0, 0.0, 0.0 },
> +                { 0.0, 1.0, 0.0 },
> +                { 0.0, 0.0, 1.0 }
> +        };
> +        drmModeModeInfo *mode;
> +        struct igt_fb fb;
> +        igt_crc_t crc_fullgamma, crc_fullcolors;
> +	int fb_id;
> +	int height_primary, height_overlay, width;
> +        igt_require(igt_pipe_obj_has_prop(primary->pipe, IGT_CRTC_GAMMA_LUT));
> +        gamma_full = generate_table_max(data->gamma_lut_size);
> +
> +        output = igt_get_single_output_for_pipe(&data->display, primary->pipe->pipe);
> +        igt_require(output);
> +
> +        igt_output_set_pipe(output, primary->pipe->pipe);
> +        mode = igt_output_get_mode(output);
> +
> +	height_primary = mode->vdisplay/2;
> +	height_overlay = mode->vdisplay/2+1;
> +	width = mode->hdisplay;
> +
> +        /* Create a framebuffer at the size of the output. */
> +	fb_id = igt_create_fb(data->drm_fd,
> +			      mode->hdisplay,
> +			      mode->vdisplay,
> +			      DRM_FORMAT_XRGB8888,
> +			      DRM_FORMAT_MOD_LINEAR,
> +			      &fb);
> +	igt_assert(fb_id);
> +
> +        igt_plane_set_fb(primary, &fb);
> +	igt_plane_set_size(primary, width, height_primary);
> +	igt_plane_set_fb(overlay, &fb);
> +	igt_plane_set_size(overlay, width, height_overlay);
> +
> +	disable_ctm(primary->pipe);
> +        disable_degamma(primary->pipe);
> +        set_gamma(data, primary->pipe, gamma_full);
> +        igt_display_commit(&data->display);
> +
> +	 /* Draw solid colors with no gamma transformation. */
> +        paint_rectangles(data, mode, red_green_blue, &fb);
> +        igt_plane_set_fb(primary, &fb);
> +
> +        igt_display_commit(&data->display);
> +        igt_wait_for_vblank(data->drm_fd,
> +                            display->pipes[primary->pipe->pipe].crtc_offset);
> +        igt_pipe_crc_collect_crc(data->pipe_crc, &crc_fullcolors);
>   
> +	/* Draw a gradient with gamma LUT to remap all values
> +         * to max red/green/blue.
> +         */
> +       /* paint_gradient_rectangles(data, mode, red_green_blue, &fb);*/
> +	paint_gradient_rectangles(data, mode, red_green_blue, &fb);
> +        igt_plane_set_fb(primary, &fb);
> +	igt_plane_set_position(primary, 0,0);
> +	igt_plane_set_size(primary, width, height_primary);
> +	igt_plane_set_fb(overlay, &fb);
> +        igt_plane_set_position(overlay, 0, height_primary);
> +        igt_plane_set_size(overlay, width, height_overlay);
> +
> +	igt_display_commit(&data->display);
> +        igt_wait_for_vblank(data->drm_fd,
> +                            display->pipes[primary->pipe->pipe].crtc_offset);
> +        igt_pipe_crc_collect_crc(data->pipe_crc, &crc_fullgamma);
> +
> +        /* Verify that the CRC of the software computed output is
> +         * equal to the CRC of the gamma LUT transformation output.
> +       */
> +
> +	igt_assert_crc_equal(&crc_fullgamma, &crc_fullcolors);
> +
> +	disable_gamma(primary->pipe);
> +        igt_plane_set_fb(primary, NULL);
> +	igt_plane_set_fb(overlay, NULL);
> +        igt_output_set_pipe(output, PIPE_NONE);
> +        igt_display_commit(&data->display);
> +        igt_remove_fb(data->drm_fd, &fb);
> +
> +        free_lut(gamma_full);
> +}
>   /*
>    * Draw 3 gradient rectangles in red, green and blue, with a maxed out gamma
>    * LUT and verify we have the same CRC as drawing solid color rectangles.
> @@ -662,7 +750,7 @@ static void
>   run_tests_for_pipe(data_t *data, enum pipe p)
>   {
>   	igt_pipe_t *pipe;
> -	igt_plane_t *primary;
> +	igt_plane_t *primary,*overlay;
>   	double delta;
>   	int i;
>   	color_t red_green_blue[] = {
> @@ -680,6 +768,7 @@ run_tests_for_pipe(data_t *data, enum pipe p)
>   		igt_require(pipe->n_planes >= 0);
>   
>   		primary = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
> +		overlay = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_OVERLAY);
>   
>   		data->pipe_crc = igt_pipe_crc_new(data->drm_fd,
>   						  primary->pipe->pipe,
> @@ -860,6 +949,11 @@ run_tests_for_pipe(data_t *data, enum pipe p)
>   	igt_subtest_f("pipe-%s-legacy-gamma-reset", kmstest_pipe_name(p))
>   		test_pipe_legacy_gamma_reset(data, primary);
>   
> +	igt_describe("Verify that gamma LUT transformation works correctly for multiplane");
> +	igt_subtest_f("pipe-%s-gamma-multiplane", kmstest_pipe_name(p))
> +                test_pipe_gamma_multiplane(data,primary,overlay);
> +
> +
>   	igt_fixture {
>   		disable_degamma(primary->pipe);
>   		disable_gamma(primary->pipe);

--
~Swati Sharma