arb_gpu_shader_fp64: add separate transform feedback test.

Based on the current EXT_transform_feedback/separate.c test
this just adds some doubles to the mix.

Signed-off-by: Dave Airlie <airlied@redhat.com>

4 files changed, 189 insertions, 0 deletions

diff --git a/tests/spec/arb_gpu_shader_fp64/CMakeLists.txt b/tests/spec/arb_gpu_shader_fp64/CMakeLists.txt
index 144a306f4..e4126fc2d 100644
--- a/tests/spec/arb_gpu_shader_fp64/CMakeLists.txt
+++ b/tests/spec/arb_gpu_shader_fp64/CMakeLists.txt
@@ -1 +1,2 @@
+add_subdirectory (execution)
 piglit_include_target_api()
diff --git a/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.gl.txt b/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.gl.txt
new file mode 100644
index 000000000..af7df1195
--- /dev/null
+++ b/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.gl.txt
@@ -0,0 +1,13 @@
+include_directories(
+	${GLEXT_INCLUDE_DIR}
+	${OPENGL_INCLUDE_PATH}
+	${piglit_SOURCE_DIR}/tests/util
+)
+
+link_libraries (
+	piglitutil_${piglit_target_api}
+	${OPENGL_gl_LIBRARY}
+	${OPENGL_glu_LIBRARY}
+)
+
+piglit_add_executable (arb_gpu_shader_fp64-tf-separate tf-separate.c)
diff --git a/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.txt b/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.txt
new file mode 100644
index 000000000..144a306f4
--- /dev/null
+++ b/tests/spec/arb_gpu_shader_fp64/execution/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
diff --git a/tests/spec/arb_gpu_shader_fp64/execution/tf-separate.c b/tests/spec/arb_gpu_shader_fp64/execution/tf-separate.c
new file mode 100644
index 000000000..7f2bf334c
--- /dev/null
+++ b/tests/spec/arb_gpu_shader_fp64/execution/tf-separate.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
+ * 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.
+ *
+ * Authors:
+ *   Dave Airlie
+ */
+
+/**
+ * ARB_gpu_shader_fp64 + EXT_transform_feedback test.
+ *
+ * Test writing separate double vertex attribs into a buffer object.
+ * this is based on Marek's separate.c test for EXT_transform_feedback
+ */
+
+#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_RGBA;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static const char *vstext = {
+	"#version 150\n"
+	"#extension GL_ARB_gpu_shader_fp64 : require\n"
+	"in vec4 vertex;"
+	"out vec4 color;"
+	"out vec4 texcoord[2];"
+	"out dvec3 v3;"
+	"out dvec2 v2;"
+	"void main() {"
+	"  gl_Position = vertex;"
+	"  color = vec4(1.0, 0.9, 0.8, 0.7);"
+	"  texcoord[0] = vec4(0.5);"
+	"  texcoord[1] = vec4(0.6, 0.0, 0.1, 0.6);"
+	"  v2 = dvec2(0.2lf, 0.7lf);"
+	"  v3 = dvec3(0.55lf, 0.66lf, 0.77lf);"
+	"}"
+};
+
+static const char *varyings[] = {"v3", "color", "v2", "texcoord[1]"};
+GLuint buf[4];
+GLuint prog;
+GLuint vbo, vao;
+
+#define NUM_OUT_VERTICES 6
+
+void piglit_init(int argc, char **argv)
+{
+	GLuint vs;
+	GLint maxcomps, maxattrs;
+	unsigned i;
+
+	/* Check the driver. */
+	piglit_require_transform_feedback();
+	piglit_require_extension("GL_ARB_gpu_shader_fp64");
+
+	glGetIntegerv(GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT, &maxattrs);
+	if (maxattrs < 4) {
+		fprintf(stderr, "Not enough separate attribs supported by transform feedback.\n");
+		piglit_report_result(PIGLIT_SKIP);
+	}
+	glGetIntegerv(GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT, &maxcomps);
+	if (maxcomps < 4) {
+		fprintf(stderr, "Not enough separate components supported by transform feedback.\n");
+		piglit_report_result(PIGLIT_SKIP);
+	}
+
+	/* Create shaders. */
+	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
+	prog = glCreateProgram();
+	glAttachShader(prog, vs);
+	glTransformFeedbackVaryings(prog, sizeof(varyings)/sizeof(varyings[0]),
+				    varyings, GL_SEPARATE_ATTRIBS_EXT);
+	glLinkProgram(prog);
+	if (!piglit_link_check_status(prog)) {
+		glDeleteProgram(prog);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	/* Set up the transform feedback buffer. */
+	glGenBuffers(4, buf);
+	for (i = 0; i < 4; i++) {
+		unsigned j;
+		float *ptr;
+		glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, buf[i]);
+		glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+			     NUM_OUT_VERTICES*8*sizeof(float), NULL, GL_STREAM_READ);
+		ptr = glMapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, GL_WRITE_ONLY);
+		for (j = 0; j < NUM_OUT_VERTICES*4; j++) {
+			ptr[j] = 0.123456;
+		}
+		glUnmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER_EXT);
+		glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, i, buf[i]);
+	}
+
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		piglit_report_result(PIGLIT_FAIL);
+
+	glClearColor(0.2, 0.2, 0.2, 1.0);
+}
+
+enum piglit_result piglit_display(void)
+{
+	bool pass = true;
+	static const float verts[] = {
+		10, 10,
+		10, 20,
+		20, 20,
+		20, 10
+	};
+	static const double v3[] = {0.55, 0.66, 0.77};
+	static const float frontcolor[] = {1.0, 0.9, 0.8, 0.7};
+	static const double v2[] = {0.2, 0.7};
+	static const float texcoord1[] = {0.6, 0.0, 0.1, 0.6};
+
+        glGenVertexArrays(1, &vao);
+        glBindVertexArray(vao);
+
+	glGenBuffers(1, &vbo);
+	glBindBuffer(GL_ARRAY_BUFFER, vbo);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW);
+	glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, (GLvoid const *)0);
+
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	/* Render into TFBO. */
+	glUseProgram(prog);
+	glEnable(GL_RASTERIZER_DISCARD);
+	glBeginTransformFeedback(GL_TRIANGLES);
+	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+	glEndTransformFeedback();
+	glDisable(GL_RASTERIZER_DISCARD);
+
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		piglit_report_result(PIGLIT_FAIL);
+
+	pass = piglit_probe_buffer_doubles(buf[0], GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+			"Buffer[0]", NUM_OUT_VERTICES, 3, v3) && pass;
+	pass = piglit_probe_buffer(buf[1], GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+			"Buffer[1]", NUM_OUT_VERTICES, 4, frontcolor)&& pass;
+	pass = piglit_probe_buffer_doubles(buf[2], GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+			"Buffer[2]", NUM_OUT_VERTICES, 2, v2) && pass;
+	pass = piglit_probe_buffer(buf[3], GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
+			"Buffer[3]", NUM_OUT_VERTICES, 4, texcoord1) && pass;
+
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		piglit_report_result(PIGLIT_FAIL);
+
+	piglit_present_results();
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}