From: Ian Romanick <[email protected]>

This covers the transform feedback object state queries added in the
extension.  Other transform feedback queires should be covered by
existing EXT_transform_feedback tests.

NVIDIA's closed-source driver passes this test.  AMD's closed-source
driver has not been tested.

Signed-off-by: Ian Romanick <[email protected]>
---
 tests/all.tests                                    |    1 +
 .../spec/arb_transform_feedback2/CMakeLists.gl.txt |    1 +
 tests/spec/arb_transform_feedback2/api-queries.c   |  196 ++++++++++++++++++++
 3 files changed, 198 insertions(+), 0 deletions(-)
 create mode 100644 tests/spec/arb_transform_feedback2/api-queries.c

diff --git a/tests/all.tests b/tests/all.tests
index e9a8cbc..1614d95 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1865,6 +1865,7 @@ arb_transform_feedback2['draw-auto'] = 
PlainExecTest(['arb_transform_feedback2-d
 arb_transform_feedback2['glGenTransformFeedbacks names only'] = 
concurrent_test('arb_transform_feedback2-gen-names-only')
 arb_transform_feedback2['cannot bind when another object is active'] = 
concurrent_test('arb_transform_feedback2-cannot-bind-when-active')
 arb_transform_feedback2['misc. API error checks'] = 
concurrent_test('arb_transform_feedback2-api-errors')
+arb_transform_feedback2['misc. API queries'] = 
concurrent_test('arb_transform_feedback2-api-queries')
 
 arb_transform_feedback_instanced = Group()
 spec['ARB_transform_feedback_instanced'] = arb_transform_feedback_instanced
diff --git a/tests/spec/arb_transform_feedback2/CMakeLists.gl.txt 
b/tests/spec/arb_transform_feedback2/CMakeLists.gl.txt
index f95592b..35b4913 100644
--- a/tests/spec/arb_transform_feedback2/CMakeLists.gl.txt
+++ b/tests/spec/arb_transform_feedback2/CMakeLists.gl.txt
@@ -10,6 +10,7 @@ link_libraries (
 )
 
 piglit_add_executable (arb_transform_feedback2-api-errors api-errors.c)
+piglit_add_executable (arb_transform_feedback2-api-queries api-queries.c)
 piglit_add_executable (arb_transform_feedback2-cannot-bind-when-active 
cannot-bind-when-active.c)
 piglit_add_executable (arb_transform_feedback2-draw-auto draw-auto.c)
 piglit_add_executable (arb_transform_feedback2-gen-names-only gen-names-only.c)
diff --git a/tests/spec/arb_transform_feedback2/api-queries.c 
b/tests/spec/arb_transform_feedback2/api-queries.c
new file mode 100644
index 0000000..2284a18
--- /dev/null
+++ b/tests/spec/arb_transform_feedback2/api-queries.c
@@ -0,0 +1,196 @@
+/*
+ * Copyright © 2012 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.
+ */
+
+/**
+ * \file api-queries.c
+ * Verify a handful of API queries.
+ *
+ * None of these subtests is large enough to warrant a separate test case.
+ */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_MAIN(
+    10 /*window_width*/,
+    10 /*window_height*/,
+    GLUT_RGB)
+
+enum piglit_result
+piglit_display(void)
+{
+       return PIGLIT_FAIL;
+}
+
+static const char vstext[] =
+       "varying vec4 x;\n"
+       "void main()\n"
+       "{\n"
+       "    gl_Position = vec4(0);\n"
+       "    x = vec4(0);\n"
+       "}"
+       ;
+
+static bool expect_bool(const char *name, bool expect, bool value)
+{
+       if (expect != value) {
+               fprintf(stderr,
+                       "%s has incorrect state.\n"
+                       "Got %s, expected %s.\n",
+                       name,
+                       value ? "true" : "false",
+                       expect ? "true" : "false");
+               return false;
+       }
+
+       return true;
+}
+
+static bool expect_int(const char *name, int expect, int value)
+{
+       if (expect != value) {
+               fprintf(stderr,
+                       "%s has incorrect state.\n"
+                       "Got %d, expected %d.\n",
+                       name, value, expect);
+               return false;
+       }
+
+       return true;
+}
+
+void piglit_init(int argc, char **argv)
+{
+       GLuint buf;
+       GLuint id;
+       GLuint prog;
+       GLuint vs;
+       const char *varyings[] = {"x"};
+       bool pass = true;
+       GLboolean bool_value;
+       GLint int_value;
+
+       piglit_require_transform_feedback();
+       piglit_require_GLSL();
+       piglit_require_extension("GL_ARB_transform_feedback2");
+
+       glGetIntegerv(GL_TRANSFORM_FEEDBACK_BINDING, &int_value);
+       pass = expect_int("GL_TRANSFORM_FEEDBACK_BINDING",
+                          0, int_value)
+               && pass;
+
+       /* This is all just the boot-strap work for the test.
+        */
+       glGenBuffers(1, &buf);
+       glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, buf);
+       glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 1024, NULL, GL_STREAM_READ);
+
+       vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
+       prog = piglit_CreateProgram();
+       piglit_AttachShader(prog, vs);
+
+       glTransformFeedbackVaryings(prog, 1, varyings,
+                                   GL_INTERLEAVED_ATTRIBS);
+       piglit_LinkProgram(prog);
+       if (!piglit_link_check_status(prog)) {
+               pass = false;
+               goto done;
+       }
+
+       glUseProgram(prog);
+
+       glGenTransformFeedbacks(1, &id);
+
+       glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, id);
+       glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, buf);
+
+       /* Verify the initial state of transform feedback object queires.
+        */
+       glGetIntegerv(GL_TRANSFORM_FEEDBACK_BINDING, &int_value);
+       pass = expect_int("GL_TRANSFORM_FEEDBACK_BINDING",
+                          id, int_value)
+               && pass;
+
+       glGetBooleanv(GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, &bool_value);
+       pass = expect_bool("GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED",
+                          false, bool_value)
+               && pass;
+
+       glGetBooleanv(GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, &bool_value);
+       pass = expect_bool("GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE",
+                          false, bool_value)
+               && pass;
+
+       /* Make active and verify.
+        */
+       glBeginTransformFeedback(GL_TRIANGLES);
+       pass = piglit_check_gl_error(0) && pass;
+
+       glGetBooleanv(GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, &bool_value);
+       pass = expect_bool("GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE",
+                          true, bool_value)
+               && pass;
+
+       /* Pause and verify.
+        */
+       glPauseTransformFeedback();
+       pass = piglit_check_gl_error(0) && pass;
+
+       glGetBooleanv(GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, &bool_value);
+       pass = expect_bool("GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED",
+                          true, bool_value)
+               && pass;
+
+       /* Resume and verify.
+        */
+       glResumeTransformFeedback();
+       pass = piglit_check_gl_error(0) && pass;
+
+       glGetBooleanv(GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, &bool_value);
+       pass = expect_bool("GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED",
+                          false, bool_value)
+               && pass;
+
+       /* End and verify.
+        */
+       glEndTransformFeedback();
+       pass = piglit_check_gl_error(0) && pass;
+
+       glGetBooleanv(GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, &bool_value);
+       pass = expect_bool("GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE",
+                          false, bool_value)
+               && pass;
+
+       glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, 0);
+
+done:
+       glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, 0);
+       glDeleteBuffers(1, &buf);
+
+       glDeleteTransformFeedbacks(1, &id);
+
+       glUseProgram(0);
+       glDeleteShader(vs);
+       glDeleteProgram(prog);
+
+       piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
-- 
1.7.6.5

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