[Piglit] [PATCH 2/2] SSO: new test to ensure matching with various qualifier
Gregory Hainaut
gregory.hainaut at gmail.com
Sun Oct 25 07:07:31 PDT 2015
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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