[Piglit] [WIP 2/4] tests/spec: ARB_transform_feedback3 interleaved in two buffers
Topi Pohjolainen
topi.pohjolainen at intel.com
Mon Sep 16 07:54:43 PDT 2013
Signed-off-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
---
tests/all.tests | 3 +
tests/spec/CMakeLists.txt | 1 +
.../spec/arb_transform_feedback3/CMakeLists.gl.txt | 13 ++
tests/spec/arb_transform_feedback3/CMakeLists.txt | 1 +
.../ext_interleaved_two_bufs.c | 223 +++++++++++++++++++++
5 files changed, 241 insertions(+)
create mode 100644 tests/spec/arb_transform_feedback3/CMakeLists.gl.txt
create mode 100644 tests/spec/arb_transform_feedback3/CMakeLists.txt
create mode 100644 tests/spec/arb_transform_feedback3/ext_interleaved_two_bufs.c
diff --git a/tests/all.tests b/tests/all.tests
index dc36841..bdebd17 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -2256,6 +2256,9 @@ for param in ['gl_NextBuffer-1', 'gl_NextBuffer-2', 'gl_SkipComponents1-1',
arb_transform_feedback3[param] = concurrent_test(
'ext_transform_feedback-output-type {0}'.format(param))
+arb_transform_feedback3['arb_transform_feedback3-ext_interleaved_two_bufs_vs'] = PlainExecTest(['arb_transform_feedback3-ext_interleaved_two_bufs', '-auto', 'vs'])
+arb_transform_feedback3['arb_transform_feedback3-ext_interleaved_two_bufs_gs'] = PlainExecTest(['arb_transform_feedback3-ext_interleaved_two_bufs', '-auto', 'gs'])
+
arb_uniform_buffer_object = Group()
spec['ARB_uniform_buffer_object'] = arb_uniform_buffer_object
import_glsl_parser_tests(spec['ARB_uniform_buffer_object'],
diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index 3bd8e9c..fd21b84 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -38,6 +38,7 @@ add_subdirectory (arb_texture_storage_multisample)
add_subdirectory (arb_texture_view)
add_subdirectory (arb_timer_query)
add_subdirectory (arb_transform_feedback2)
+add_subdirectory (arb_transform_feedback3)
add_subdirectory (ati_envmap_bumpmap)
add_subdirectory (ext_fog_coord)
add_subdirectory (ext_framebuffer_multisample)
diff --git a/tests/spec/arb_transform_feedback3/CMakeLists.gl.txt b/tests/spec/arb_transform_feedback3/CMakeLists.gl.txt
new file mode 100644
index 0000000..614ccd6
--- /dev/null
+++ b/tests/spec/arb_transform_feedback3/CMakeLists.gl.txt
@@ -0,0 +1,13 @@
+include_directories(
+ ${GLEXT_INCLUDE_DIR}
+ ${OPENGL_INCLUDE_PATH}
+)
+
+link_libraries (
+ piglitutil_${piglit_target_api}
+ ${OPENGL_gl_LIBRARY}
+)
+
+piglit_add_executable (arb_transform_feedback3-ext_interleaved_two_bufs ext_interleaved_two_bufs.c)
+
+# vim: ft=cmake:
diff --git a/tests/spec/arb_transform_feedback3/CMakeLists.txt b/tests/spec/arb_transform_feedback3/CMakeLists.txt
new file mode 100644
index 0000000..144a306
--- /dev/null
+++ b/tests/spec/arb_transform_feedback3/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
diff --git a/tests/spec/arb_transform_feedback3/ext_interleaved_two_bufs.c b/tests/spec/arb_transform_feedback3/ext_interleaved_two_bufs.c
new file mode 100644
index 0000000..7b43dca
--- /dev/null
+++ b/tests/spec/arb_transform_feedback3/ext_interleaved_two_bufs.c
@@ -0,0 +1,223 @@
+/*
+ * Copyright © 2013 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.
+ */
+
+#include "piglit-util-gl-common.h"
+
+/**
+ * @file ext_interleaved_two_bufs.c
+ *
+ * Record two interleaved sets of attributes, one holding two attributes and the
+ * other holding three, into two separate buffers. The test can be executed in
+ * two different ways: both sets originating from vertex shader or both sets
+ * originating from geometry shader.
+ *
+ * Recording both vertex shader and geometry shader outputs in parallel is not
+ * supported by the extension. The spec says:
+ *
+ * "When a geometry shader is active (see section 2.12), transform feedback
+ * records the values of the selected geometry shader output variables from the
+ * emitted vertices. Otherwise, the values of the selected vertex shader output
+ * variables are recorded."
+ *
+ * This test uses the "EXT"-style GLSL transform feedback.
+ */
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_compat_version = 10;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static const char vs_text_two_sets[] =
+ "#version 150\n"
+ "out float x1_out;\n"
+ "out vec2 x2_out;\n"
+ "out vec3 x3_out;\n"
+ "out float y1_out;\n"
+ "out vec4 y2_out;\n"
+ "void main() {\n"
+ " gl_Position = vec4(0.0);\n"
+ " x1_out = 0.1;\n"
+ " x2_out = vec2(0.2, 0.3);\n"
+ " x3_out = vec3(0.4, 0.5, 0.6);\n"
+ " y1_out = 0.7;\n"
+ " y2_out = vec4(0.75, 0.80, 0.85, 0.90);\n"
+ "}";
+
+static const char vs_text_no_set[] =
+ "#version 150\n"
+ "void main() {\n"
+ " gl_Position = vec4(0.0);\n"
+ "}";
+
+static const char gs_text_two_sets[] =
+ "#version 150\n"
+ "layout(points) in;\n"
+ "layout(points, max_vertices = 1) out;\n"
+ "out float x1_out;\n"
+ "out vec2 x2_out;\n"
+ "out vec3 x3_out;\n"
+ "out float y1_out;\n"
+ "out vec4 y2_out;\n"
+ "void main() {\n"
+ " gl_Position = gl_in[0].gl_Position;\n"
+ " x1_out = 0.1;\n"
+ " x2_out = vec2(0.2, 0.3);\n"
+ " x3_out = vec3(0.4, 0.5, 0.6);\n"
+ " y1_out = 0.7;\n"
+ " y2_out = vec4(0.75, 0.80, 0.85, 0.90);\n"
+ " EmitVertex();\n"
+ "}";
+
+/**
+ * The spec for ARB_transform_feedback3 says:
+ *
+ * If a string in <varyings> is "gl_NextBuffer", it does not identify a
+ * varying variable, but instead serves as a buffer separator value to
+ * direct subsequent varyings at the next transform feedback binding point.
+ */
+static const char *varyings[] = { "x1_out", "x2_out", "x3_out", "gl_NextBuffer",
+ "y1_out", "y2_out" };
+
+/* Expected transform feedback results in the first buffer: */
+static const float expected_xfb_result_1[] = {
+ 0.1, /* x1 */
+ 0.2, 0.3, /* x2 */
+ 0.4, 0.5, 0.6 /* x3 */
+};
+
+/* Expected transform feedback results in the second buffer: */
+static const float expected_xfb_result_2[] = {
+ 0.7, /* y1 */
+ 0.75, 0.80, 0.85, 0.90 /* y2 */
+};
+
+static void
+print_usage_and_exit(const char *prog_name)
+{
+ printf("Usage: %s <subtest>\n"
+ " where <subtest> is one of the following:\n"
+ " gs\n"
+ " vs\n", prog_name);
+ piglit_report_result(PIGLIT_FAIL);
+}
+
+static void
+build_and_use_program(const char *vs_text, const char *gs_text)
+{
+ GLuint vs, gs, prog;
+
+ prog = glCreateProgram();
+ vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);
+ glAttachShader(prog, vs);
+
+ if (gs_text) {
+ gs = piglit_compile_shader_text(GL_GEOMETRY_SHADER, gs_text);
+ glAttachShader(prog, gs);
+ }
+
+ /**
+ * In the EXT-style the recorded varyings need to be set before
+ * linking.
+ * Also it should be noticed that when mixed mode is used, i.e., where
+ * one records multiple attributes per buffer but also uses separate
+ * buffers, the mode must be set to interleaved.
+ */
+ glTransformFeedbackVaryings(prog, ARRAY_SIZE(varyings), varyings,
+ GL_INTERLEAVED_ATTRIBS_EXT);
+
+ glLinkProgram(prog);
+ if (!piglit_link_check_status(prog))
+ piglit_report_result(PIGLIT_FAIL);
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ piglit_report_result(PIGLIT_FAIL);
+
+ glUseProgram(prog);
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ int pass;
+ GLuint xfb[2];
+ const char *vs_text;
+ const char *gs_text;
+
+ if (argc != 2)
+ print_usage_and_exit(argv[0]);
+ if (strcmp(argv[1], "vs") == 0) {
+ vs_text = vs_text_two_sets;
+ gs_text = 0;
+ } else if (strcmp(argv[1], "gs") == 0) {
+ vs_text = vs_text_no_set;
+ gs_text = gs_text_two_sets;
+ } else
+ print_usage_and_exit(argv[0]);
+
+ piglit_require_GLSL_version(130);
+ piglit_require_extension("GL_ARB_geometry_shader4");
+ piglit_require_extension("GL_ARB_transform_feedback3");
+
+ build_and_use_program(vs_text, gs_text);
+
+ /* Set up the transform feedback buffers. */
+ glGenBuffers(2, xfb);
+ glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, 0, xfb[0]);
+ glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+ sizeof(expected_xfb_result_1), NULL, GL_STREAM_READ);
+ glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, 1, xfb[1]);
+ glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+ sizeof(expected_xfb_result_2), NULL, GL_STREAM_READ);
+
+ /* Use GL_RASTERIZER_DISCARD, since we are going to use
+ * transform feedback for this test.
+ */
+ glEnable(GL_RASTERIZER_DISCARD);
+
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ piglit_report_result(PIGLIT_FAIL);
+
+ /* Draw and record */
+ glBeginTransformFeedback(GL_POINTS);
+ glDrawArrays(GL_POINTS, 0, 1);
+ glEndTransformFeedback();
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ piglit_report_result(PIGLIT_FAIL);
+
+ /* Check the recordings against expectations */
+ pass = piglit_probe_buffer(xfb[0], GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+ "first", 1, ARRAY_SIZE(expected_xfb_result_1),
+ expected_xfb_result_1);
+ pass = piglit_probe_buffer(xfb[1], GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+ "second", 1, ARRAY_SIZE(expected_xfb_result_2),
+ expected_xfb_result_2) && pass;
+
+ piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+ /* Should never be reached */
+ return PIGLIT_FAIL;
+}
--
1.8.3.1
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