[Piglit] [PATCH] gl-3.0: add new test for glVertexAttribIPointer()

Brian Paul brianp at vmware.com
Wed Jun 4 08:17:04 PDT 2014


---
 tests/all.py                             |    1 +
 tests/spec/gl-3.0/CMakeLists.gl.txt      |    1 +
 tests/spec/gl-3.0/vertexattribipointer.c |  239 ++++++++++++++++++++++++++++++
 3 files changed, 241 insertions(+)
 create mode 100644 tests/spec/gl-3.0/vertexattribipointer.c

diff --git a/tests/all.py b/tests/all.py
index 1652d7c..3830013 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -944,6 +944,7 @@ gl30['required-texture-attachment-formats'] = concurrent_test('gl-3.0-required-t
 gl30['forward-compatible-bit yes'] = concurrent_test('gl-3.0-forward-compatible-bit yes')
 gl30['forward-compatible-bit no'] = concurrent_test('gl-3.0-forward-compatible-bit no')
 add_concurrent_test(gl30, 'gl-3.0-texture-integer')
+add_concurrent_test(gl30, 'gl-3.0-vertexattribipointer')
 add_plain_test(gl30, 'gl30basic')
 add_plain_test(gl30, 'array-depth-roundtrip')
 add_plain_test(gl30, 'depth-cube-map')
diff --git a/tests/spec/gl-3.0/CMakeLists.gl.txt b/tests/spec/gl-3.0/CMakeLists.gl.txt
index df9cf25..c107fd5 100644
--- a/tests/spec/gl-3.0/CMakeLists.gl.txt
+++ b/tests/spec/gl-3.0/CMakeLists.gl.txt
@@ -14,5 +14,6 @@ piglit_add_executable (gl-3.0-required-sized-texture-formats required-sized-text
 piglit_add_executable (gl-3.0-required-renderbuffer-attachment-formats required-renderbuffer-attachment-formats.c)
 piglit_add_executable (gl-3.0-required-texture-attachment-formats required-texture-attachment-formats.c)
 piglit_add_executable (gl-3.0-texture-integer texture-integer.c)
+piglit_add_executable (gl-3.0-vertexattribipointer vertexattribipointer.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/gl-3.0/vertexattribipointer.c b/tests/spec/gl-3.0/vertexattribipointer.c
new file mode 100644
index 0000000..b69e731
--- /dev/null
+++ b/tests/spec/gl-3.0/vertexattribipointer.c
@@ -0,0 +1,239 @@
+/*
+ * 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.
+ */
+
+/**
+ * Test OpenGL 3.0's glVertexAttribIPointer function with all combinations
+ * of types and sizes.
+ */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+	config.supports_gl_compat_version = 30;
+	config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+/**
+ * We'll pass in the same data for both the signed and unsigned vertex
+ * attributes and the signed/unsigned expected value.
+ */
+static const char *vertShaderText =
+	"#version 130 \n"
+	"uniform ivec4 expected_i; \n"
+	"in ivec4 attr_i; \n"
+	"uniform uvec4 expected_u; \n"
+	"in uvec4 attr_u; \n"
+	"out vec4 color; \n"
+	" \n"
+	"void main() \n"
+	"{ \n"
+	"   gl_Position = gl_Vertex; \n"
+	"   if (attr_i == expected_i && attr_u == expected_u) \n"
+	"      color = vec4(0, 1, 0, 0); // good! \n"
+	"   else \n"
+	"      color = vec4(1, 0, 0, 0); // bad! \n"
+	"} \n";
+
+static const char *fragShaderText =
+	"#version 130 \n"
+	"in vec4 color;\n"
+	"void main()\n"
+	"{ \n"
+	"   gl_FragColor = color; \n"
+	"} \n";
+
+
+static const GLubyte ubyte4_data[] = { 100, 0, 200, 255 };
+static const GLbyte byte4_data[] = { 50, 0, -25, -50 };
+static const GLushort ushort4_data[] = { 16000, 0, 32000, 65535 };
+static const GLshort short4_data[] = { 2000, 0, -4000, -32010 };
+static const GLuint uint4_data[] = { 10000000, 0, 20000000, 80000020 };
+static const GLint int4_data[] = { 10000000, 0, -20000000, -40000020 };
+
+static GLuint Prog;
+static GLint ExpectedUniform_i, ExpectedUniform_u;
+static GLint Attr_i, Attr_u;
+
+
+/*
+ * Test glVertexAttribIArray(type, size, normalized)
+ */
+static bool
+test_array(GLenum type, GLuint size)
+{
+	static const GLfloat verts[4][2] = {
+		{ -1.0, -1.0 },
+		{ 1.0, -1.0 },
+		{ 1.0, 1.0 },
+		{ -1.0, 1.0 }
+	};
+	static const GLfloat green[4] = { 0.0, 1.0, 0.0, 0.0 };
+	GLubyte attr_buffer[4 * 4 * sizeof(GLuint)];
+	int typeSize;
+	const void *data;
+	GLint expected[4];
+	int i, p;
+
+	switch (type) {
+	case GL_BYTE:
+		typeSize = sizeof(GLbyte);
+		data = byte4_data;
+		for (i = 0; i < 4; i++)
+			expected[i] = byte4_data[i];
+		break;
+	case GL_UNSIGNED_BYTE:
+		typeSize = sizeof(GLubyte);
+		data = ubyte4_data;
+		for (i = 0; i < 4; i++)
+			expected[i] = ubyte4_data[i];
+		break;
+	case GL_SHORT:
+		typeSize = sizeof(GLshort);
+		data = short4_data;
+		for (i = 0; i < 4; i++)
+			expected[i] = short4_data[i];
+		break;
+	case GL_UNSIGNED_SHORT:
+		typeSize = sizeof(GLushort);
+		data = ushort4_data;
+		for (i = 0; i < 4; i++)
+			expected[i] = ushort4_data[i];
+		break;
+	case GL_INT:
+		typeSize = sizeof(GLint);
+		data = int4_data;
+		for (i = 0; i < 4; i++)
+			expected[i] = int4_data[i];
+		break;
+	case GL_UNSIGNED_INT:
+		typeSize = sizeof(GLuint);
+		data = uint4_data;
+		for (i = 0; i < 4; i++)
+			expected[i] = uint4_data[i];
+		break;
+	default:
+		assert(0);
+		typeSize = sizeof(GLint);
+	}
+
+	/* set unused components to defaults */
+	switch (size) {
+	case 1:
+		expected[1] = 0;
+	case 2:
+		expected[2] = 0;
+	case 3:
+		expected[3] = 1;
+	}
+
+	/* Setup the attribute buffer by making four copies of the
+	 * test's array data (for the four vertices).
+	 */
+	{
+		int i, sz = typeSize * size;
+		for (i = 0; i < 4; i++) {
+			memcpy(attr_buffer + i * sz, data, sz);
+		}		       
+	}
+
+	/* We set up both the signed and unsigned int attribute arrays to
+	 * point to the same vertex data.
+	 */
+	glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, verts);
+	glEnableVertexAttribArray(0);
+	glVertexAttribIPointer(Attr_i, size, type, 0, attr_buffer);
+	glEnableVertexAttribArray(Attr_i);
+	glVertexAttribIPointer(Attr_u, size, type, 0, attr_buffer);
+	glEnableVertexAttribArray(Attr_u);
+
+	glViewport(0, 0, piglit_width, piglit_height);
+	glClearColor(1,0,0,0);
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	/* The same value is expected for the signed and unsigned attributes */
+	glUniform4iv(ExpectedUniform_i, 1, expected);
+	glUniform4uiv(ExpectedUniform_u, 1, (const GLuint *) expected);
+
+	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+	glDisableVertexAttribArray(0);
+	glDisableVertexAttribArray(Attr_i);
+	glDisableVertexAttribArray(Attr_u);
+
+	p = piglit_probe_pixel_rgba(piglit_width / 2, piglit_height / 2,
+				    green);
+	if (!p) {
+		printf("Test %s[%d] failed\n",
+		       piglit_get_gl_enum_name(type), size);
+                fflush(stdout);
+	}
+
+	piglit_present_results();
+
+	return p;
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+	static const GLenum types[] = {
+		GL_BYTE,
+		GL_UNSIGNED_BYTE,
+		GL_SHORT,
+		GL_UNSIGNED_SHORT,
+		GL_INT,
+		GL_UNSIGNED_INT
+	};
+	bool pass = true;
+	int t, size;
+
+	for (t = 0; t < ARRAY_SIZE(types); t++) {
+		for (size = 1; size <= 4; size++) {
+			pass = test_array(types[t], size) && pass;
+		}
+	}
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+	piglit_require_gl_version(30);
+
+	Prog = piglit_build_simple_program(vertShaderText, fragShaderText);
+	if (!Prog) {
+		printf("Failed to compile/link program\n");
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	glUseProgram(Prog);
+
+	Attr_i = glGetAttribLocation(Prog, "attr_i");
+	Attr_u = glGetAttribLocation(Prog, "attr_u");
+	ExpectedUniform_i = glGetUniformLocation(Prog, "expected_i");
+	ExpectedUniform_u = glGetUniformLocation(Prog, "expected_u");
+}
-- 
1.7.10.4



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