[Piglit] [PATCH] fp64: check GetTransformFeedbackVaryings returns the correct types

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This just tests we get back the correct GL types from the query.

This passes on mesa currently.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 .../execution/CMakeLists.gl.txt                    |   1 +
 .../execution/double-gettransformfeedbackvarying.c | 133 +++++++++++++++++++++
 2 files changed, 134 insertions(+)
 create mode 100644 tests/spec/arb_gpu_shader_fp64/execution/double-gettransformfeedbackvarying.c

diff --git a/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.gl.txt b/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.gl.txt
index af7df11..68d0b07 100644
--- a/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.gl.txt
+++ b/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.gl.txt
@@ -11,3 +11,4 @@ link_libraries (
 )
 
 piglit_add_executable (arb_gpu_shader_fp64-tf-separate tf-separate.c)
+piglit_add_executable (arb_gpu_shader_fp64-double-gettransformfeedbackvarying double-gettransformfeedbackvarying.c)
diff --git a/tests/spec/arb_gpu_shader_fp64/execution/double-gettransformfeedbackvarying.c b/tests/spec/arb_gpu_shader_fp64/execution/double-gettransformfeedbackvarying.c
new file mode 100644
index 0000000..ff4b0e0
--- /dev/null
+++ b/tests/spec/arb_gpu_shader_fp64/execution/double-gettransformfeedbackvarying.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright © 2015 Red Hat
+ *
+ * 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 double-gettransformfeedbackvarying.c
+ *
+ * Verify that transform feedback on double varyings returns
+ * the correct types.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+        config.supports_gl_core_version = 32;
+	config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGB;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+#define MAX_EXPECTED_OUTPUT_COMPONENTS 8
+
+static const char *vstext = {
+	"#version 150\n"
+	"#extension GL_ARB_gpu_shader_fp64 : require\n"
+	"in vec4 vertex;"
+	"out %s tfout;"
+	"void main() {"
+	"  gl_Position = vertex;"
+	"  tfout = %s(0.2lf);"
+	"}"
+};
+
+static struct get_tests {
+	GLenum type;
+	const char *glsltype;
+	int size;
+} tests[] = {
+	{ GL_DOUBLE, "double", 1 },
+	{ GL_DOUBLE_VEC2 , "dvec2", 1 },
+	{ GL_DOUBLE_VEC3 , "dvec3", 1 },
+	{ GL_DOUBLE_VEC4 , "dvec4", 1 },
+	{ GL_DOUBLE_MAT2 , "dmat2", 1 },
+	{ GL_DOUBLE_MAT2x3 , "dmat2x3", 1 },
+	{ GL_DOUBLE_MAT2x4 , "dmat2x4", 1 },
+	{ GL_DOUBLE_MAT3 , "dmat3", 1 },
+	{ GL_DOUBLE_MAT3x2 , "dmat3x2", 1 },
+	{ GL_DOUBLE_MAT3x4 , "dmat3x4", 1 },
+	{ GL_DOUBLE_MAT4 , "dmat4", 1 },
+	{ GL_DOUBLE_MAT4x2 , "dmat4x2", 1 },
+	{ GL_DOUBLE_MAT4x3 , "dmat4x3", 1 },
+};
+	
+static bool size_and_type_ok = true;
+static const char *varyings[] = { "tfout" };
+
+void run_test(struct get_tests *test)
+{
+	GLsizei size;
+	GLenum type;
+	GLuint vs;
+	GLuint prog;
+	char vstest[1024];
+
+	snprintf(vstest, 1024, vstext, test->glsltype, test->glsltype);
+
+	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstest);
+	prog = glCreateProgram();
+	glAttachShader(prog, vs);
+	glBindAttribLocation(prog, 0, "vertex");
+	glTransformFeedbackVaryings(prog, ARRAY_SIZE(varyings),
+				    varyings,
+				    GL_INTERLEAVED_ATTRIBS_EXT);
+	glLinkProgram(prog);
+	if (!piglit_link_check_status(prog)) {
+		glDeleteProgram(prog);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	glGetTransformFeedbackVarying(prog, 0, 0, NULL, &size,
+				      &type, NULL);
+	if (size != test->size) {
+		printf("For %s, size %d vs %d\n", test->glsltype, size, test->size);
+		size_and_type_ok = false;
+	}
+	if (type != test->type) {
+		printf("For %s, size %d vs %d\n", test->glsltype, type, test->type);
+		size_and_type_ok = false;
+	}
+	glDeleteProgram(prog);
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+	int i;
+
+	/* Set up test */
+	piglit_require_GLSL_version(1.50);
+	piglit_require_transform_feedback();
+	piglit_require_extension("GL_ARB_gpu_shader_fp64");
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++)
+		run_test(&tests[i]);
+
+	if (size_and_type_ok == false)
+		piglit_report_result(PIGLIT_FAIL);
+	piglit_report_result(PIGLIT_PASS);
+}
+
+enum piglit_result piglit_display(void)
+{
+	return PIGLIT_PASS;
+}
-- 
1.9.3