[Piglit] [PATCH] GL-3.2 ARB_draw_elements_base_vertex: Add DrawRangeElementsBaseVertex test.

Jacob Penner jkpenner91 at gmail.com
Tue Jul 30 10:49:04 PDT 2013


DrawRangeElementsBaseVertex was added in GL-3.2, test that it functions
properly.
---
 .../CMakeLists.gl.txt                              |   2 +-
 .../draw-range-elements-base-vertex.c              | 188 +++++++++++++++++++++
 2 files changed, 189 insertions(+), 1 deletion(-)
 create mode 100644 tests/spec/arb_draw_elements_base_vertex/draw-range-elements-base-vertex.c

diff --git a/tests/spec/arb_draw_elements_base_vertex/CMakeLists.gl.txt b/tests/spec/arb_draw_elements_base_vertex/CMakeLists.gl.txt
index adbba29..3a0091e 100644
--- a/tests/spec/arb_draw_elements_base_vertex/CMakeLists.gl.txt
+++ b/tests/spec/arb_draw_elements_base_vertex/CMakeLists.gl.txt
@@ -11,5 +11,5 @@ link_libraries (
 
 piglit_add_executable (draw-elements-instanced-base-vertex draw-elements-instanced-base-vertex.c)
 piglit_add_executable (arb_draw_elements_base_vertex-dlist-arb_draw_instanced dlist-arb_draw_instanced.c)
-
+piglit_add_executable (draw-ranged-elements-base-vertex draw-range-elements-base-vertex.c)
 # vim: ft=cmake:
diff --git a/tests/spec/arb_draw_elements_base_vertex/draw-range-elements-base-vertex.c b/tests/spec/arb_draw_elements_base_vertex/draw-range-elements-base-vertex.c
new file mode 100644
index 0000000..b042716
--- /dev/null
+++ b/tests/spec/arb_draw_elements_base_vertex/draw-range-elements-base-vertex.c
@@ -0,0 +1,188 @@
+/*
+ * Copyright © 2013 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 draw-range-elements-base-vertex.c
+ *
+ * Section 2.8.2(Vertex Arrays) From GL spec 3.2 core:
+ * glDrawRangeElementsBaseVertex was added.
+ *
+ * For DrawRangeElementsBaseVertex, the index values must lie between start
+ * and end inclusive, prior to adding the basevertex offset. Index values
+ * lying outside the range [start, end] are treated in the same way as
+ * DrawRangeElements.
+ *
+ * It is an error for index values other than the primitive restart index
+ * to lie outside the range [start, end], but implementations are not
+ * required to check for this. Such indices will cause implementation-
+ * dependent behavior.
+ *
+ *    (0)-------(1)    Set up indices for quad 1 and 3.
+ *     |    1    |
+ *    (2)-------(3)    Use a basevertex of 2 on quad 3
+ *     |    2    |     draw call to shift quad 3 to quad 4
+ *    (4)-------(5)
+ *     |    3    |    End result quad 1 will be white and quad 2 clear color.
+ *    (6)-------(7)   If index values are compared to start and end values
+ *     |    4    |    prior to adding basevertex quad 3 will be clear color
+ *    (8)-------(9)   while 4 will be white.
+ */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+	config.supports_gl_compat_version = 10;
+	config.supports_gl_core_version = 31;
+
+	config.window_width = 48;
+	config.window_height = 48;
+	config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+const char *vs_source = {
+	"#version 130\n"
+	"in vec2 vertex;\n"
+	"void main() {\n"
+	"	gl_Position = vec4(vertex.xy, 0, 1);\n"
+	"}\n"
+};
+
+const char *fs_source = {
+	"#version 130\n"
+	"void main() {\n"
+	"	gl_FragColor = vec4(1,1,1,1);\n"
+	"}\n"
+};
+
+static GLuint vao;
+static GLuint vertexBuffer;
+static GLuint indexBuffer;
+
+
+// sets of two (x,y)
+static GLfloat vertices[] = {
+	-1.0, 1.0,
+	 1.0, 1.0,
+	-1.0, 0.5,
+	 1.0, 0.5,
+	-1.0, 0.0,
+	 1.0, 0.0,
+	-1.0,-0.5,
+	 1.0,-0.5,
+	-1.0,-1.0,
+	 1.0,-1.0
+};
+static GLsizei vertices_size = sizeof(vertices);
+
+static GLuint indices[] = {
+	0, 1, 2, 1, 2, 3, // top square
+	4, 5, 6, 5, 6, 7, // bot square
+};
+static GLsizei indices_size = sizeof(indices);
+
+static GLuint square1_basevertex = 0;
+static GLuint square1_start = 0;
+static GLuint square1_end = 3;
+static GLsizei square1_count = 6;
+static GLvoid *square1_indices_offset = NULL;
+
+static GLuint square2_basevertex = 2;
+static GLuint square2_start = 4;
+static GLuint square2_end = 7;
+static GLsizei square2_count = 6;
+static GLvoid *square2_indices_offset = NULL + sizeof(GLuint)*6;
+
+void
+piglit_init(int argc, char **argv)
+{
+	GLuint program;
+	GLuint vertex_index;
+
+	if (piglit_get_gl_version() < 32) {
+		piglit_require_extension("GL_ARB_draw_elements_base_vertex");
+	}
+
+	// Create program
+	program = piglit_build_simple_program(vs_source, fs_source);
+	glUseProgram(program);
+
+	// Gen vertex array buffer
+	glGenBuffers(1, &vertexBuffer);
+	glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
+	glBufferData(GL_ARRAY_BUFFER, vertices_size, vertices, GL_STATIC_DRAW);
+
+	// Gen indices array buffer
+	glGenBuffers(1, &indexBuffer);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices_size,
+			indices, GL_STATIC_DRAW);
+	// Gen VAO
+	glGenVertexArrays(1, &vao);
+	glBindVertexArray(vao);
+
+	// Retrieve indices from vs
+	vertex_index = glGetAttribLocation(program, "vertex");
+
+	// Enable vertex attrib array
+	glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
+	glEnableVertexAttribArray(vertex_index);
+	glVertexAttribPointer(vertex_index, 2, GL_FLOAT, GL_FALSE, 0, 0);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+	bool pass = true;
+
+	float white[] = {1,1,1};
+	float clear[] = {0,0,0};
+
+	glClearColor(clear[0], clear[1], clear[2], 1.0);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	glBindVertexArray(vao);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
+
+
+	 //With base vertex of 0
+	glDrawRangeElementsBaseVertex(GL_TRIANGLES, square1_start, square1_end,
+				square1_count, GL_UNSIGNED_INT,
+				square1_indices_offset, square1_basevertex);
+
+	//With base vertex of 2
+	glDrawRangeElementsBaseVertex(GL_TRIANGLES, square2_start, square2_end,
+				square2_count, GL_UNSIGNED_INT,
+				square2_indices_offset, square2_basevertex);
+
+
+	// Check for test pass
+	pass = piglit_probe_pixel_rgb(24, 42, white) && pass;
+	pass = piglit_probe_pixel_rgb(24, 30, clear) && pass;
+	pass = piglit_probe_pixel_rgb(24, 18, clear) && pass;
+	pass = piglit_probe_pixel_rgb(24, 6, white) && pass;
+
+	piglit_present_results();
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
-- 
1.8.3.1



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