[Piglit] [PATCH V3] arb_separate_shader_objects: test mixed explicit and non-explicit locations

Timothy Arceri timothy.arceri at collabora.com
Tue Nov 24 18:45:51 PST 2015


From: Timothy Arceri <t_arceri at yahoo.com.au>

This tests a bug in Mesa where explicit locations are not taken into
account when assigning varying locations which results in two
inputs/outputs being given the same location.

Test results:
Nvidia GeForce 840M - NVIDIA 352.41: pass
i965 - Mesa 11.1-dev: fail

V3:
- use helper function to format and link shaders
- add array and arrays of arrays subtests
- allow test to be run concurrently

V2: use pick_a_glsl_version() helper

Cc: Gregory Hainaut <gregory.hainaut at gmail.com>
---
 tests/all.py                                       |   2 +
 .../arb_separate_shader_objects/CMakeLists.gl.txt  |   1 +
 .../mixed_explicit_and_non_explicit_locations.c    | 343 +++++++++++++++++++++
 3 files changed, 346 insertions(+)
 create mode 100644 tests/spec/arb_separate_shader_objects/mixed_explicit_and_non_explicit_locations.c

diff --git a/tests/all.py b/tests/all.py
index 07e3599..7689796 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -2161,6 +2161,8 @@ with profile.group_manager(
       'Rendezvous by name')
     g(['arb_separate_shader_object-rendezvous_by_name_interpolation'],
       'Rendezvous by name with multiple interpolation qualifier')
+    g(['arb_separate_shader_object-mixed_explicit_and_non_explicit_locations'],
+      'Mixed explicit and non-explicit locations')
     g(['arb_separate_shader_object-rendezvous_by_location', '-fbo'],
       'Rendezvous by location', run_concurrent=False)
     g(['arb_separate_shader_object-rendezvous_by_location-5-stages'],
diff --git a/tests/spec/arb_separate_shader_objects/CMakeLists.gl.txt b/tests/spec/arb_separate_shader_objects/CMakeLists.gl.txt
index b4fce73..8e4011f 100644
--- a/tests/spec/arb_separate_shader_objects/CMakeLists.gl.txt
+++ b/tests/spec/arb_separate_shader_objects/CMakeLists.gl.txt
@@ -15,6 +15,7 @@ piglit_add_executable (arb_separate_shader_object-compat-builtins compat-builtin
 piglit_add_executable (arb_separate_shader_object-explicit_locations_and_transform_feedback explicit_locations_and_transform_feedback.c)
 piglit_add_executable (arb_separate_shader_object-GetProgramPipelineiv GetProgramPipelineiv.c)
 piglit_add_executable (arb_separate_shader_object-IsProgramPipeline IsProgramPipeline.c)
+piglit_add_executable (arb_separate_shader_object-mixed_explicit_and_non_explicit_locations mixed_explicit_and_non_explicit_locations.c sso-common.c)
 piglit_add_executable (arb_separate_shader_object-ProgramUniform-coverage ProgramUniform-coverage.c)
 piglit_add_executable (arb_separate_shader_object-rendezvous_by_location rendezvous_by_location.c sso-common.c)
 piglit_add_executable (arb_separate_shader_object-rendezvous_by_location-3-stages rendezvous_by_location-3-stages.c)
diff --git a/tests/spec/arb_separate_shader_objects/mixed_explicit_and_non_explicit_locations.c b/tests/spec/arb_separate_shader_objects/mixed_explicit_and_non_explicit_locations.c
new file mode 100644
index 0000000..3bca2bc
--- /dev/null
+++ b/tests/spec/arb_separate_shader_objects/mixed_explicit_and_non_explicit_locations.c
@@ -0,0 +1,343 @@
+/*
+ * Copyright © 2015 Intel Corporation
+ *
+ * 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.
+ */
+
+/**
+ * This tests a bug in Mesa where explicit locations are not taken into
+ * account when assigning varying locations which results in two
+ * inputs/outputs being given the same location.
+ */
+#include "piglit-util-gl.h"
+#include "sso-common.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 = 0;
+static GLuint pipeline_arrays = 0;
+static GLuint pipeline_arrays_of_arrays = 0;
+
+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"
+	"layout(location = 0) out vec3 a;\n"
+        "out vec3 d;\n"
+        "out vec3 e;\n"
+	"layout(location = 1) out vec3 b;\n"
+        "out vec3 f;\n"
+	"layout(location = 2) out vec3 c;\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"    gl_Position = piglit_vertex;\n"
+	"    a = vec3(0.25, 0, 0);\n"
+	"    b = vec3(0, 0.25, 0);\n"
+	"    c = vec3(0, 0, 0.25);\n"
+	"    d = vec3(0.5, 0, 0);\n"
+	"    e = vec3(0, 0.5, 0);\n"
+	"    f = vec3(0, 0, 0.5);\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"
+	"layout(location = 0) in vec3 a; /* should get vec3(0.25, 0, 0) */\n"
+        "in vec3 d;                      /* should get vec3(0.5, 0, 0)  */\n"
+        "in vec3 e;                      /* should get vec3(0, 0.5, 0)  */\n"
+	"layout(location = 1) in vec3 b; /* should get vec3(0, 0.25, 0) */\n"
+        "in vec3 f;                      /* should get vec3(0, 0, 0.5)  */\n"
+	"layout(location = 2) in vec3 c; /* should get vec3(0, 0, 0.25) */\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"    out_color = vec4(a.x + d.x, b.y + e.y, c.z + f.z, 1);\n"
+	"}\n"
+	;
+
+static const char *vs_arrays_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"
+        "out vec3 c[2];\n"
+	"layout(location = 1) out vec3 a;\n"
+	"layout(location = 2) out vec3 b[2];\n"
+        "out vec3 d;\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"    gl_Position = piglit_vertex;\n"
+	"    a = vec3(0.25, 0, 0);\n"
+	"    b[0] = vec3(0, 0.25, 0);\n"
+	"    b[1] = vec3(0, 0, 0.25);\n"
+	"    c[0] = vec3(0.5, 0, 0);\n"
+	"    c[1] = vec3(0, 0.5, 0);\n"
+	"    d = vec3(0, 0, 0.5);\n"
+	"}\n"
+	;
+
+static const char *fs_arrays_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"
+        "in vec3 c[2];                      /* should get vec3(0.5, 0, 0)\n"
+	"                                    * and vec3(0, 0.5, 0)\n"
+	"                                    */\n"
+	"layout(location = 1) in vec3 a;    /* should get vec3(0.25, 0, 0) */\n"
+	"layout(location = 2) in vec3 b[2]; /* should get vec3(0, 0.25, 0)\n"
+	"                                    * and vec3(0, 0, 0.25)\n"
+	"                                    */\n"
+        "in vec3 d;                         /* should get vec3(0, 0, 0.5)  */\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"    out_color = vec4(a.x + c[0].x, b[0].y + c[1].y, b[1].z + d.z, 1);\n"
+	"}\n"
+	;
+
+static const char *vs_aoa_code_template =
+	"#version %d\n"
+	"#extension GL_ARB_separate_shader_objects: require\n"
+	"#extension GL_ARB_explicit_attrib_location: require\n"
+	"#extension GL_ARB_arrays_of_arrays: require\n"
+	"\n"
+	"layout(location = 0) in vec4 piglit_vertex;\n"
+	"\n"
+        "out vec3 c[2][2];\n"
+	"layout(location = 2) out vec3 a[2][2];\n"
+        "out vec3 d;\n"
+	"layout(location = 8) out vec3 b;\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"    gl_Position = piglit_vertex;\n"
+	"    a[0][0] = vec3(0.25, 0, 0);\n"
+	"    a[0][1] = vec3(0, 0.25, 0);\n"
+	"    a[1][0] = vec3(0.125, 0, 0);\n"
+	"    a[1][1] = vec3(0, 0.125, 0);\n"
+	"    b = vec3(0, 0, 0.25);\n"
+	"    c[0][0] = vec3(0.5, 0, 0);\n"
+	"    c[0][1] = vec3(0, 0.5, 0);\n"
+	"    c[1][0] = vec3(0.0625, 0, 0);\n"
+	"    c[1][1] = vec3(0, 0.0625, 0);\n"
+	"    d = vec3(0, 0, 0.5);\n"
+	"}\n"
+	;
+
+static const char *fs_aoa_code_template =
+	"#version %d\n"
+	"#extension GL_ARB_separate_shader_objects: require\n"
+	"#extension GL_ARB_explicit_attrib_location: enable\n"
+	"#extension GL_ARB_arrays_of_arrays: require\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"
+        "in vec3 c[2][2];\n"
+	"layout(location = 2) in vec3 a[2][2];\n"
+	"layout(location = 8) in vec3 b;\n"
+        "in vec3 d;\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"    float red = a[0][0].x + a[1][0].x + c[0][0].x + c[1][0].x;\n"
+	"    float green = a[0][1].y + a[1][1].y + c[0][1].y + c[1][1].y;\n"
+	"    float blue = b.z + d.z;\n"
+	"    out_color = vec4(red, green, blue, 1);\n"
+	"}\n"
+	;
+
+enum piglit_result
+piglit_display(void)
+{
+	static const float expected[] = {
+		0.75f, 0.75f, 0.75f, 1.0f
+	};
+	static const float expected_aoa[] = {
+		0.9375f, 0.9375f, 0.75f, 1.0f
+	};
+	bool pass, pass1, pass2, pass3;
+	int h_width = piglit_width / 2;
+	int h_height = piglit_height / 2;
+
+	glClearColor(0.1f, 0.1f, 0.1f, 0.1f);
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	/*
+	 * Test 1: Test for overlap of location assignment for varying.
+	 */
+	glBindProgramPipeline(pipeline);
+	piglit_draw_rect(-1, -1, 1, 1);
+
+	/*
+	 * Test 2: Test for overlap of location assignment for varying arrays.
+	 */
+	if (pipeline_arrays) {
+		glBindProgramPipeline(pipeline_arrays);
+		piglit_draw_rect(-1, 0, 1, 1);
+	}
+
+	/*
+	 * Test 3: Test for overlap of location assignment for varying
+	 * arrays of arrays.
+	 */
+	if (pipeline_arrays_of_arrays) {
+		glBindProgramPipeline(pipeline_arrays_of_arrays);
+		piglit_draw_rect(0, -1, 1, 2);
+	}
+
+	/*
+	 * Probe and report result
+	 */
+	pass1 = piglit_probe_rect_rgba(0, 0, h_width, h_height, expected);
+	pass2 = !pipeline_arrays ||
+		piglit_probe_rect_rgba(0, h_height, h_width, h_height,
+				       expected);
+	pass3 = !pipeline_arrays_of_arrays ||
+		piglit_probe_rect_rgba(h_width, h_height, h_width, h_height,
+				       expected_aoa);
+
+	piglit_present_results();
+
+	pass = pass1 & pass2 & pass3;
+
+	piglit_report_subtest_result(pass1 ? PIGLIT_PASS : PIGLIT_FAIL,
+			"Varying location assignment overlap");
+
+	if (pipeline_arrays) {
+		piglit_report_subtest_result(pass2 ? PIGLIT_PASS : PIGLIT_FAIL,
+			"Varying arrays location assignment overlap");
+	}
+
+	if (pipeline_arrays_of_arrays) {
+		piglit_report_subtest_result(pass3 ? PIGLIT_PASS : PIGLIT_FAIL,
+			"Varying arrays of arrays location assignment "
+			"overlap");
+	}
+
+	piglit_present_results();
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void piglit_init(int argc, char **argv)
+{
+	unsigned glsl_version;
+	GLuint vs_prog, vs_prog_arrays, vs_prog_arrays_of_arrays;
+	GLuint fs_prog, fs_prog_arrays, fs_prog_arrays_of_arrays;
+
+	piglit_require_vertex_shader();
+	piglit_require_fragment_shader();
+	piglit_require_extension("GL_ARB_separate_shader_objects");
+	piglit_require_extension("GL_ARB_explicit_attrib_location");
+
+	glsl_version = pick_a_glsl_version();
+
+	/* Link and build pipeline for Varying test */
+	vs_prog = format_and_link_program(GL_VERTEX_SHADER, vs_code_template,
+					 glsl_version);
+
+	fs_prog = format_and_link_program(GL_FRAGMENT_SHADER,
+					 fs_code_template, glsl_version);
+
+	glGenProgramPipelines(1, &pipeline);
+	glUseProgramStages(pipeline,
+			   GL_VERTEX_SHADER_BIT,
+			   vs_prog);
+	glUseProgramStages(pipeline,
+			   GL_FRAGMENT_SHADER_BIT,
+			   fs_prog);
+	piglit_program_pipeline_check_status(pipeline);
+
+	/* Link and build pipeline for Varying arrays test */
+	if (glsl_version >= 110) {
+		vs_prog_arrays = format_and_link_program(GL_VERTEX_SHADER,
+							vs_arrays_code_template,
+							glsl_version);
+
+		fs_prog_arrays = format_and_link_program(GL_FRAGMENT_SHADER,
+							fs_arrays_code_template,
+							glsl_version);
+
+		glGenProgramPipelines(1, &pipeline_arrays);
+		glUseProgramStages(pipeline_arrays,
+				   GL_VERTEX_SHADER_BIT,
+				   vs_prog_arrays);
+		glUseProgramStages(pipeline_arrays,
+				   GL_FRAGMENT_SHADER_BIT,
+				   fs_prog_arrays);
+		piglit_program_pipeline_check_status(pipeline_arrays);
+	}
+
+	/* Link and build pipeline for Varying arrays test */
+	if (piglit_is_extension_supported("GL_ARB_arrays_of_arrays")) {
+		vs_prog_arrays_of_arrays =
+			format_and_link_program(GL_VERTEX_SHADER,
+						vs_aoa_code_template,
+						glsl_version);
+
+		fs_prog_arrays_of_arrays =
+			format_and_link_program(GL_FRAGMENT_SHADER,
+						fs_aoa_code_template,
+						glsl_version);
+
+		glGenProgramPipelines(1, &pipeline_arrays_of_arrays);
+		glUseProgramStages(pipeline_arrays_of_arrays,
+				   GL_VERTEX_SHADER_BIT,
+				   vs_prog_arrays_of_arrays);
+		glUseProgramStages(pipeline_arrays_of_arrays,
+				  GL_FRAGMENT_SHADER_BIT,
+				  fs_prog_arrays_of_arrays);
+		piglit_program_pipeline_check_status(pipeline_arrays_of_arrays);
+	}
+
+	if (!piglit_check_gl_error(0))
+		piglit_report_result(PIGLIT_FAIL);
+}
-- 
2.4.3



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