[Piglit] [PATCH 3/4] arb_direct_state_access: Added glTransformFeedbackBufferRange tests

Martin Peres martin.peres at linux.intel.com
Mon Feb 9 04:26:01 PST 2015


Signed-off-by: Martin Peres <martin.peres at linux.intel.com>
---
 tests/all.py                                       |   1 +
 .../spec/arb_direct_state_access/CMakeLists.gl.txt |   1 +
 .../transformfeedback-bufferrange.c                | 234 +++++++++++++++++++++
 3 files changed, 236 insertions(+)
 create mode 100644 tests/spec/arb_direct_state_access/transformfeedback-bufferrange.c

diff --git a/tests/all.py b/tests/all.py
index 2ba1820..c3fdba7 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -4408,6 +4408,7 @@ import_glsl_parser_tests(arb_derivative_control,
 spec['ARB_direct_state_access'] = {}
 spec['ARB_direct_state_access']['create-transformfeedbacks'] = PiglitGLTest(['arb_direct_state_access-create-transformfeedbacks'], run_concurrent=True)
 spec['ARB_direct_state_access']['transformfeedback-bufferbase'] = PiglitGLTest(['arb_direct_state_access-transformfeedback-bufferbase'], run_concurrent=True)
+spec['ARB_direct_state_access']['transformfeedback-bufferrange'] = PiglitGLTest(['arb_direct_state_access-transformfeedback-bufferrange'], run_concurrent=True)
 spec['ARB_direct_state_access']['dsa-textures'] = PiglitGLTest(['arb_direct_state_access-dsa-textures'], run_concurrent=True)
 spec['ARB_direct_state_access']['texturesubimage'] = PiglitGLTest(['arb_direct_state_access-texturesubimage'], run_concurrent=True)
 spec['ARB_direct_state_access']['bind-texture-unit'] = PiglitGLTest(['arb_direct_state_access-bind-texture-unit'], run_concurrent=True)
diff --git a/tests/spec/arb_direct_state_access/CMakeLists.gl.txt b/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
index e01894f..8ae8275 100644
--- a/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
+++ b/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
@@ -11,6 +11,7 @@ link_libraries (
 
 piglit_add_executable (arb_direct_state_access-create-transformfeedbacks create-transformfeedbacks.c)
 piglit_add_executable (arb_direct_state_access-transformfeedback-bufferbase transformfeedback-bufferbase.c)
+piglit_add_executable (arb_direct_state_access-transformfeedback-bufferrange transformfeedback-bufferrange.c)
 piglit_add_executable (arb_direct_state_access-dsa-textures dsa-textures.c dsa-utils.c)
 piglit_add_executable (arb_direct_state_access-texturesubimage texturesubimage.c)
 piglit_add_executable (arb_direct_state_access-bind-texture-unit bind-texture-unit.c)
diff --git a/tests/spec/arb_direct_state_access/transformfeedback-bufferrange.c b/tests/spec/arb_direct_state_access/transformfeedback-bufferrange.c
new file mode 100644
index 0000000..58c43ea
--- /dev/null
+++ b/tests/spec/arb_direct_state_access/transformfeedback-bufferrange.c
@@ -0,0 +1,234 @@
+/*
+ * Copyright © 2014 VMware, Inc.
+ *
+ * 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 transformfeedback-bufferrange.c
+ * Simple transform feedback test drawing GL_POINTS and making use of the
+ * transform-feedback-related direct state access entry points.
+ *
+ * Greatly inspired from ext_transform_feedback/points.c.
+ */
+
+#include "piglit-util-gl.h"
+#include "dsa-utils.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+	config.supports_gl_compat_version = 10;
+	config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+static GLuint prog;
+static GLuint xfb_buf[3], vert_buf;
+static const int xfb_buf_size = 500;
+static const int offset = 16;
+
+static const char *vstext = {
+	"void main() {"
+	"   gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;"
+	"   gl_FrontColor = vec4(0.9, 0.8, 0.7, 0.6);"
+	"}"
+};
+
+#define NUM_VERTS 3
+static const GLfloat verts[NUM_VERTS][3] =
+{
+	{-1.0, 0.2, 0},
+	{0, 0.2, 0},
+	{1, 0.2, 0}
+};
+
+static const GLfloat verts_ret[NUM_VERTS][3] =
+{
+	{-0.5, 0.1, 0},
+	{ 0.0, 0.1, 0},
+	{ 0.5, 0.1, 0}
+};
+
+static const GLfloat color_ret[NUM_VERTS][3] =
+{
+	{0.9, 0.8, 0.7},
+	{0.9, 0.8, 0.7},
+	{0.9, 0.8, 0.7}
+};
+
+void
+piglit_init(int argc, char **argv)
+{
+	static const char *varyings[] = { "gl_Position", "gl_FrontColor" };
+	GLuint vs;
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	glScalef(0.5, 0.5, 1.0);
+
+	/* Check the driver. */
+	piglit_require_gl_version(15);
+	piglit_require_GLSL();
+	piglit_require_extension("GL_ARB_transform_feedback3");
+	piglit_require_extension("GL_ARB_direct_state_access");
+
+	/* Create shaders. */
+	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
+	prog = glCreateProgram();
+	glAttachShader(prog, vs);
+	glTransformFeedbackVaryings(prog, 2, varyings,
+					GL_SEPARATE_ATTRIBS);
+	glLinkProgram(prog);
+	if (!piglit_link_check_status(prog)) {
+		glDeleteProgram(prog);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+	glUseProgram(prog);
+
+	/* Set up the vertex data buffer */
+	glGenBuffers(1, &vert_buf);
+	glBindBuffer(GL_ARRAY_BUFFER, vert_buf);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW);
+
+	glClearColor(0.2, 0.2, 0.2, 1.0);
+}
+
+static bool
+equal(float a, float b)
+{
+	return fabsf(a - b) < 0.0001;
+}
+
+enum piglit_result
+piglit_display(void)
+{
+	bool pass = true, test = true;
+	GLint max_bind_points = 0;
+	GLuint q, num_prims;
+	GLfloat *v, *w;
+	int i, j;
+
+	/* Allocate the transform feedback buffers */
+	glCreateTransformFeedbacks(3, xfb_buf);
+	glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, xfb_buf[2]);
+	piglit_check_gl_error(GL_NO_ERROR);
+
+	/* test corner cases */
+	glGetIntegerv(GL_MAX_TRANSFORM_FEEDBACK_BUFFERS, &max_bind_points);
+	SUBTEST(GL_NO_ERROR, pass, "fetch maximum number of bind points");
+
+	/* bind a non-existing transform feedback BO */
+	glTransformFeedbackBufferRange(1337, 0, 0, 0, 4096);
+	SUBTEST(GL_INVALID_OPERATION, pass, "bind non-existing transform "
+					    "feedback BO");
+
+	/* bind a non-existing output BO */
+	glTransformFeedbackBufferRange(0, 0, 1337, 0, 4096);
+	SUBTEST(GL_INVALID_VALUE, pass, "bind a non-existing output BO");
+
+	/* bind to a negative index */
+	glTransformFeedbackBufferRange(0, -1, xfb_buf[2], 0, 4096);
+	SUBTEST(GL_INVALID_VALUE, pass, "bind negative index");
+
+	/* bind to an index == max */
+	glTransformFeedbackBufferRange(0, max_bind_points, xfb_buf[2], 0,
+			4096);
+	SUBTEST(GL_INVALID_VALUE, pass, "bind to index == max_bind_points "
+		"(%i)", max_bind_points);
+
+	/* bind at a non-aligned offset */
+	glTransformFeedbackBufferRange(0, 0, xfb_buf[2], 3, 4096);
+	SUBTEST(GL_INVALID_VALUE, pass, "bind at a non-aligned offset");
+
+	/* bind with a non-aligned size */
+	glTransformFeedbackBufferRange(0, 0, xfb_buf[2], 0, 4095);
+	SUBTEST(GL_INVALID_VALUE, pass, "bind with a non-aligned size");
+
+	/* start the proper test */
+	for (i = 0; i < 2; i++) {
+		glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, xfb_buf[i]);
+		glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER,
+				 xfb_buf_size, NULL, GL_STREAM_READ);
+		glTransformFeedbackBufferRange(0, i, xfb_buf[i], offset,
+					       xfb_buf_size);
+		piglit_check_gl_error(GL_NO_ERROR);
+	}
+
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	glGenQueries(1, &q);
+	glBeginQuery(GL_PRIMITIVES_GENERATED, q);
+	piglit_check_gl_error(GL_NO_ERROR);
+
+	glBeginTransformFeedback(GL_POINTS);
+	glBindBuffer(GL_ARRAY_BUFFER, vert_buf);
+	glVertexPointer(3, GL_FLOAT, 0, 0);
+	glEnable(GL_VERTEX_ARRAY);
+	glDrawArrays(GL_POINTS, 0, 3);
+	glEndTransformFeedback();
+
+	glEndQuery(GL_PRIMITIVES_GENERATED);
+
+	glGetQueryObjectuiv(q, GL_QUERY_RESULT, &num_prims);
+	glDeleteQueries(1, &q);
+	printf("%u primitives generated:\n", num_prims);
+
+	if (num_prims != NUM_VERTS) {
+		printf("Incorrect number of prims generated.\n");
+		printf("Found %u, expected %u\n", num_prims, NUM_VERTS);
+		pass = false;
+	}
+
+	glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, xfb_buf[0]);
+	v = glMapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, GL_READ_ONLY) + offset;
+	piglit_check_gl_error(GL_NO_ERROR);
+	glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, xfb_buf[1]);
+	w = glMapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, GL_READ_ONLY) + offset;
+	piglit_check_gl_error(GL_NO_ERROR);
+	for (i = 0; i < num_prims; i++) {
+		printf("vertex %2d: pos %5.2g, %5.2g, %5.2g, %5.2g   "
+			   "color %5.2g, %5.2g, %5.2g, %5.2g\n", i,
+			   v[i*4+0], v[i*4+1], v[i*4+2], v[i*4+3],
+			   w[i*4+0], w[i*4+1], w[i*4+2], w[i*4+3]);
+
+		for(j = 0; j < 3; j++) {
+			if (!equal(v[i*4+j], verts_ret[i][j])) {
+				printf("	Incorrect coord %i for point "
+				       " %d: %f instead of %f\n",
+				       j, i, v[i*4+j], verts_ret[i][j]);
+				test = false;
+			}
+			if (!equal(w[i*4+j], color_ret[i][j])) {
+				printf("	Incorrect color component %i "
+				       "for point %d: %f instead of %f\n",
+				       j, i, w[i*4+j], color_ret[i][j]);
+				test = false;
+			}
+		}
+	}
+	SUBTESTCONDITION(test, pass, "general test");
+
+	glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, xfb_buf[0]);
+	glUnmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
+	glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, xfb_buf[1]);
+	glUnmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
+
+	piglit_present_results();
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
-- 
2.2.2



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