[Mesa-dev] [PATCH] ARB_Uniform_Buffer_Object: layout(std140) test
Vincent Lejeune
vljn at ovi.com
Mon Dec 5 08:06:00 PST 2011
---
tests/spec/CMakeLists.txt | 1 +
.../arb_uniform_buffer_object/CMakeLists.gl.txt | 17 ++
.../spec/arb_uniform_buffer_object/CMakeLists.txt | 1 +
.../arb_uniform_buffer_object/standard-layout.c | 169 ++++++++++++++++++++
4 files changed, 188 insertions(+), 0 deletions(-)
create mode 100644 tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
create mode 100644 tests/spec/arb_uniform_buffer_object/CMakeLists.txt
create mode 100644 tests/spec/arb_uniform_buffer_object/standard-layout.c
diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index a4021c3..c1f3c85 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -38,3 +38,4 @@ add_subdirectory (ext_texture_integer)
add_subdirectory (arb_draw_buffers)
add_subdirectory (oes_draw_texture)
add_subdirectory (arb_blend_func_extended)
+add_subdirectory (arb_uniform_buffer_object)
diff --git a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
new file mode 100644
index 0000000..72478a4
--- /dev/null
+++ b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
@@ -0,0 +1,17 @@
+include_directories(
+ ${GLEXT_INCLUDE_DIR}
+ ${OPENGL_INCLUDE_PATH}
+ ${GLUT_INCLUDE_DIR}
+ ${piglit_SOURCE_DIR}/tests/util
+)
+
+link_libraries (
+ piglitutil
+ ${OPENGL_gl_LIBRARY}
+ ${OPENGL_glu_LIBRARY}
+ ${GLUT_glut_LIBRARY}
+)
+
+add_executable (arb_uniform_buffer_object_standard_layout standard-layout.c)
+
+# vim: ft=cmake:
diff --git a/tests/spec/arb_uniform_buffer_object/CMakeLists.txt b/tests/spec/arb_uniform_buffer_object/CMakeLists.txt
new file mode 100644
index 0000000..144a306
--- /dev/null
+++ b/tests/spec/arb_uniform_buffer_object/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
diff --git a/tests/spec/arb_uniform_buffer_object/standard-layout.c b/tests/spec/arb_uniform_buffer_object/standard-layout.c
new file mode 100644
index 0000000..623960f
--- /dev/null
+++ b/tests/spec/arb_uniform_buffer_object/standard-layout.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ * Copyright 2011 Vincent Lejeune
+ *
+ * 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.
+ */
+
+/**
+ * ARB_uniform_buffer_object test
+ *
+ * This test checks the conformance of offset and size returned by
+ * glGetActiveUniformsiv for uniform in an UBO whose layout is
+ * std140 (and thus, standardised).
+ *
+ * The example shader and expected values for offset and size are
+ * taken from spec :
+ *
+ * http://www.opengl.org/registry/specs/ARB/uniform_buffer_object.txt
+ */
+
+#include "piglit-util.h"
+
+#define Elements(x) (sizeof(x)/sizeof(*(x)))
+
+
+int piglit_width = 100;
+int piglit_height = 100;
+int piglit_window_mode = GLUT_DOUBLE | GLUT_RGB | GLUT_ALPHA;
+static GLuint prog;
+
+static const struct result {
+ const char* name;
+ GLint offset;
+ GLint size;
+} expected_result[] =
+ {
+ { "a", 0, 1 },
+ { "b", 8, 1 },
+ { "c", 16, 1 },
+ { "f.d", 32, 1},
+ { "f.e", 40, 1},
+ { "g", 48, 1},
+ { "h", 64, 2},
+ { "i", 96, 1},
+ { "o[0].j", 128,1},
+ { "o[0].k", 144, 1},
+ { "o[0].l", 160, 2},
+ { "o[0].m", 192, 1},
+ { "o[0].n", 208, 2},
+ { "o[1].j", 304,1},
+ { "o[1].k", 320, 1},
+ { "o[1].l", 336, 2},
+ { "o[1].m", 368, 1},
+ { "o[1].n", 384, 2},
+ };
+
+
+
+static const char frag_shader_text[] =
+ "#version 130\n"
+ "#extension GL_ARB_uniform_buffer_object : enable \n"
+ "layout(std140) uniform test_ubo { \n"
+ "float a;\n"
+ "vec2 b;\n"
+ "vec3 c;\n"
+ "struct {\n"
+ "int d;\n"
+ "bvec2 e;\n"
+ "} f;\n"
+ "float g;\n"
+ "float h[2];\n"
+ "mat2x3 i;\n"
+ "struct {\n"
+ "uvec3 j;\n"
+ "vec2 k;\n"
+ "float l[2];\n"
+ "vec2 m;\n"
+ "mat3 n[2];\n"
+ "} o[2];"
+ "};\n"
+ "void main() {}";
+
+static void
+init(void)
+{
+ GLuint fs;
+
+ piglit_require_GLSL_version(120);
+
+ fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, frag_shader_text);
+ prog = piglit_CreateProgram();
+ piglit_AttachShader(prog, fs);
+
+ piglit_LinkProgram(prog);
+ if (!piglit_link_check_status(prog)) {
+ piglit_DeleteProgram(prog);
+ piglit_report_result(PIGLIT_FAIL);
+ }
+
+ piglit_UseProgram(prog);
+ piglit_check_gl_error(0, PIGLIT_FAIL);
+}
+
+static bool
+validate_offset_and_size()
+{
+ unsigned i,index;
+ GLint offset,size;
+
+ for(i = 0; i < Elements(expected_result); i++) {
+ const char* temp_name = expected_result[i].name;
+ glGetUniformIndices(prog, 1, &temp_name, &index);
+ if (index == GL_INVALID_INDEX) {
+ printf("%s not found\n",temp_name);
+ return 0;
+ }
+ glGetActiveUniformsiv(prog, 1, &index, GL_UNIFORM_OFFSET, &offset);
+ if (offset != expected_result[i].offset) {
+ printf("For %s : offset is %d, should be %d\n",temp_name,
+ offset,expected_result[i].offset);
+ return 0;
+ }
+ glGetActiveUniformsiv(prog, 1, &index, GL_UNIFORM_SIZE, &size);
+ if (size != expected_result[i].size) {
+ printf("For %s : size is %d, should be %d\n",temp_name,
+ size,expected_result[i].size);
+ return 0;
+ }
+ }
+ return 1;
+
+}
+
+static void
+check_results_and_exit(void)
+{
+ GLboolean pass = GL_TRUE;
+ pass = validate_offset_and_size();
+ piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ init();
+ check_results_and_exit();
+}
+
+enum piglit_result piglit_display(void)
+{
+ return PIGLIT_FAIL;
+}
--
1.7.7
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