[Piglit] [PATCH 2/2] SSO: new test to ensure matching with various qualifier

Dylan Baker baker.dylan.c at gmail.com
Sun Oct 25 10:33:17 PDT 2015


Same with this one
On Oct 25, 2015 07:08, "Gregory Hainaut" <gregory.hainaut at gmail.com> wrote:

> Test is composed of 2 major steps.
>
> First part ensure that a matching (same on both VS & FS) qualifier doesn't
> pertubate the location assignment
>
> Second part ensure that a non-matching qualifier also work. Final
> interpolation
> qualifier is the one of the FS.
> Technically it is only allowed from GLSL4.5. However I don't know if any gl
> implementation really implement this constraint.
>
> Signed-off-by: Gregory Hainaut <gregory.hainaut at gmail.com>
> ---
>  .../arb_separate_shader_objects/CMakeLists.gl.txt  |   1 +
>  .../rendezvous_by_name_interpolation.c             | 210
> +++++++++++++++++++++
>  2 files changed, 211 insertions(+)
>  create mode 100644
> tests/spec/arb_separate_shader_objects/rendezvous_by_name_interpolation.c
>
> diff --git a/tests/spec/arb_separate_shader_objects/CMakeLists.gl.txt
> b/tests/spec/arb_separate_shader_objects/CMakeLists.gl.txt
> index 9ab6606..22a04b7 100644
> --- a/tests/spec/arb_separate_shader_objects/CMakeLists.gl.txt
> +++ b/tests/spec/arb_separate_shader_objects/CMakeLists.gl.txt
> @@ -19,5 +19,6 @@ piglit_add_executable
> (arb_separate_shader_object-rendezvous_by_location rendezv
>  piglit_add_executable
> (arb_separate_shader_object-rendezvous_by_location-3-stages
> rendezvous_by_location-3-stages.c)
>  piglit_add_executable
> (arb_separate_shader_object-rendezvous_by_location-5-stages
> rendezvous_by_location-5-stages.c)
>  piglit_add_executable (arb_separate_shader_object-rendezvous_by_name
> rendezvous_by_name.c)
> +piglit_add_executable
> (arb_separate_shader_object-rendezvous_by_name_interpolation
> rendezvous_by_name_interpolation.c)
>  piglit_add_executable
> (arb_separate_shader_object-UseProgramStages-non-separable
> UseProgramStages-non-separable.c)
>  piglit_add_executable (arb_separate_shader_object-ValidateProgramPipeline
> ValidateProgramPipeline.c)
> diff --git
> a/tests/spec/arb_separate_shader_objects/rendezvous_by_name_interpolation.c
> b/tests/spec/arb_separate_shader_objects/rendezvous_by_name_interpolation.c
> new file mode 100644
> index 0000000..5a99871
> --- /dev/null
> +++
> b/tests/spec/arb_separate_shader_objects/rendezvous_by_name_interpolation.c
> @@ -0,0 +1,210 @@
> +/*
> + * Copyright © 2015 Gregory Hainaut <gregory.hainaut at gmail.com>
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
> "Software"),
> + * to deal in the Software without restriction, including without
> limitation
> + * the rights to use, copy, modify, merge, publish, distribute,
> sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice (including the
> next
> + * paragraph) shall be included in all copies or substantial portions of
> the
> + * Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT
> SHALL
> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
> OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
> DEALINGS
> + * IN THE SOFTWARE.
> + */
> +
> +/**
> + * \file rendezvous_by_name_interpolation.c
> + * Simple test for separate shader objects that use rendezvous-by-name.
> + *
> + * The test ensures that multiple interpolation qualifier doesn't break
> + * the interface matching.
> + */
> +#include "piglit-util-gl.h"
> +
> +PIGLIT_GL_TEST_CONFIG_BEGIN
> +
> +       config.supports_gl_compat_version = 10;
> +       config.window_visual = PIGLIT_GL_VISUAL_RGB |
> PIGLIT_GL_VISUAL_DOUBLE;
> +
> +PIGLIT_GL_TEST_CONFIG_END
> +
> +static GLuint pipeline_match[4];
> +static GLuint pipeline_unmatch[4];
> +
> +static const char *vs_code_template =
> +       "#version %d\n"
> +       "#extension GL_ARB_separate_shader_objects: require\n"
> +       "#extension GL_ARB_explicit_attrib_location: require\n"
> +       "\n"
> +       "layout(location = 0) in vec4 piglit_vertex;\n"
> +       "\n"
> +       "%s out vec4 blue;\n"
> +       "%s out vec4 green;\n"
> +       "%s out vec4 red;\n"
> +       "\n"
> +       "void main()\n"
> +       "{\n"
> +       "    gl_Position = piglit_vertex;\n"
> +       "    red   = vec4(1, 0, 0, 0);\n"
> +       "    green = vec4(0, 1, 0, 0);\n"
> +       "    blue  = vec4(0, 0, 1, 0);\n"
> +       "}\n"
> +       ;
> +
> +static const char *fs_code_template =
> +       "#version %d\n"
> +       "#extension GL_ARB_separate_shader_objects: require\n"
> +       "#extension GL_ARB_explicit_attrib_location: enable\n"
> +       "\n"
> +       "#if __VERSION__ >= 130\n"
> +       "layout(location = 0) out vec4 out_color;\n"
> +       "#else\n"
> +       "#define out_color gl_FragColor\n"
> +       "#endif\n"
> +       "\n"
> +       "%s in vec4 blue;\n"
> +       "%s in vec4 green;\n"
> +       "%s in vec4 red;\n"
> +       "\n"
> +       "void main()\n"
> +       "{\n"
> +       "    out_color = vec4(red.r, green.g, blue.b, 1);\n"
> +       "}\n"
> +       ;
> +
> +static const char *qualifiers[] = {
> +       "",
> +       "flat",
> +       "smooth",
> +       "noperspective"
> +};
> +
> +enum piglit_result
> +piglit_display(void)
> +{
> +       static const float expected[] = {
> +               1.0f, 1.0f, 1.0f, 1.0f
> +       };
> +       bool pass = true;
> +       int i;
> +
> +       glClearColor(0.1f, 0.1f, 0.1f, 0.1f);
> +       glClear(GL_COLOR_BUFFER_BIT);
> +
> +       for (i = 0; i < 4; i++) {
> +               float w = 0.5;
> +               float x = -1.0 + w * i;
> +               /*
> +                * Match qualifier on bottom row
> +                */
> +               glBindProgramPipeline(pipeline_match[i]);
> +               piglit_draw_rect(x, -1, w, 1);
> +
> +               /*
> +                * Unmatch qualifier on top row
> +                */
> +               glBindProgramPipeline(pipeline_unmatch[i]);
> +               piglit_draw_rect(x, 0, w, 1);
> +       }
> +
> +       pass &= piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
> +                                     expected);
> +
> +       piglit_present_results();
> +
> +       return pass ? PIGLIT_PASS : PIGLIT_FAIL;
> +}
> +
> +GLuint format_and_link_program(GLenum type, const char* code, unsigned
> glsl_version,
> +               unsigned q1, unsigned q2, unsigned q3)
> +{
> +       char *source;
> +       GLuint prog;
> +
> +       asprintf(&source, code, glsl_version, qualifiers[q1],
> qualifiers[q2], qualifiers[q3]);
> +       prog = glCreateShaderProgramv(type, 1,
> +                       (const GLchar *const *) &source);
> +
> +       piglit_link_check_status(prog);
> +       free(source);
> +
> +       return prog;
> +}
> +
> +void piglit_init(int argc, char **argv)
> +{
> +       unsigned i;
> +       unsigned glsl_version;
> +       GLuint vs_prog[4];
> +       GLuint fs_prog_match[4];
> +       GLuint fs_prog_unmatch[4];
> +       bool es;
> +       int glsl_major;
> +       int glsl_minor;
> +
> +       piglit_require_vertex_shader();
> +       piglit_require_fragment_shader();
> +       piglit_require_GLSL_version(130); /* Support layout index on
> output color */
> +       piglit_require_extension("GL_ARB_separate_shader_objects");
> +       piglit_require_extension("GL_ARB_explicit_attrib_location");
> +       piglit_require_extension("GL_ARB_blend_func_extended");
> +
> +       /* Some NVIDIA drivers have issues with layout qualifiers, 'in'
> +        * keywords, and 'out' keywords in "lower" GLSL versions.  If the
> +        * driver supports GLSL >= 1.40, use 1.40.  Otherwise, pick the
> +        * highest version that the driver supports.
> +        */
> +       piglit_get_glsl_version(&es, &glsl_major, &glsl_minor);
> +       glsl_version = ((glsl_major * 100) + glsl_minor) >= 140
> +               ? 140 : ((glsl_major * 100) + glsl_minor);
> +
> +       /*
> +        * Program compilation and link
> +        */
> +       for (i = 0; i < 4; i++) {
> +               int next = (i+1) % 4;
> +               int prev = (i-1) % 4;
> +               printf("Compile vs_prog[%d]\n", i);
> +               vs_prog[i] = format_and_link_program(GL_VERTEX_SHADER,
> +                               vs_code_template, glsl_version, prev, i,
> next);
> +
> +               printf("Compile fs_prog_match[%d]\n", i);
> +               fs_prog_match[i] =
> format_and_link_program(GL_FRAGMENT_SHADER,
> +                               fs_code_template, glsl_version, prev, i,
> next);
> +
> +               printf("Compile fs_prog_unmatch[%d]\n", i);
> +               fs_prog_unmatch[i] =
> format_and_link_program(GL_FRAGMENT_SHADER,
> +                               fs_code_template, glsl_version, next,
> prev, i);
> +       }
> +
> +       /*
> +        * Pipeline creation
> +        */
> +       glGenProgramPipelines(4, pipeline_match);
> +       glGenProgramPipelines(4, pipeline_unmatch);
> +       for (i = 0; i < 4; i++) {
> +               glBindProgramPipeline(pipeline_match[i]);
> +               glUseProgramStages(pipeline_match[i],
> +                               GL_VERTEX_SHADER_BIT, vs_prog[i]);
> +               glUseProgramStages(pipeline_match[i],
> +                               GL_FRAGMENT_SHADER_BIT, fs_prog_match[i]);
> +
> +               glBindProgramPipeline(pipeline_unmatch[i]);
> +               glUseProgramStages(pipeline_unmatch[i],
> +                               GL_VERTEX_SHADER_BIT, vs_prog[i]);
> +               glUseProgramStages(pipeline_unmatch[i],
> +                               GL_FRAGMENT_SHADER_BIT,
> fs_prog_unmatch[i]);
> +       }
> +
> +       if (!piglit_check_gl_error(0))
> +               piglit_report_result(PIGLIT_FAIL);
> +}
> --
> 2.1.4
>
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