[Piglit] [PATCH] GL-3.2 ARB_draw_elements_base_vertex: Add MultiDrawElementsBaseVertex test.
Jacob Penner
jkpenner91 at gmail.com
Tue Jul 30 11:12:13 PDT 2013
MultiDrawElementsBaseVertex was added in GL-3.2, test that it functions
properly.
---
.../CMakeLists.gl.txt | 2 +-
.../multi-draw-elements-base-vertex.c | 181 +++++++++++++++++++++
2 files changed, 182 insertions(+), 1 deletion(-)
create mode 100644 tests/spec/arb_draw_elements_base_vertex/multi-draw-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..1511393 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 (multi-draw-elements-base-vertex multi-draw-elements-base-vertex.c)
# vim: ft=cmake:
diff --git a/tests/spec/arb_draw_elements_base_vertex/multi-draw-elements-base-vertex.c b/tests/spec/arb_draw_elements_base_vertex/multi-draw-elements-base-vertex.c
new file mode 100644
index 0000000..df267f2
--- /dev/null
+++ b/tests/spec/arb_draw_elements_base_vertex/multi-draw-elements-base-vertex.c
@@ -0,0 +1,181 @@
+/*
+ * 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 multi-draw-elements-base-vertex.c
+ *
+ * Section 2.8.2(Vertex Arrays) From GL spec 3.2 core:
+ * glMultiDrawElementsBaseVertex was added.
+ *
+ *
+ * (0)-------(1) Set up indices for quad 1 and 3.
+ * | 1 |
+ * (2)-------(3) Use a basevertex of 2 to shift
+ * | 2 | indices from quad 1 to 2 and
+ * (4)-------(5) from quad 3 to 4
+ * | 3 |
+ * (6)-------(7) End result 1 and 3 should be the
+ * | 4 | clear color while 2 and 4 are white.
+ * (8)-------(9)
+ *
+ *
+ * MultiDrawElementsBaseVertex behaves identically to
+ * DrawElementsBaseVertex, except that primcount separate
+ * lists of elements are specified instead. It has the
+ * same effect as:
+ *
+ * for (int i = 0; i < primcount ; i++)
+ * if (count[i] > 0)
+ * DrawElementsBaseVertex(mode, count[i], type,
+ * indices[i], basevertex[i]);
+ *
+ */
+
+#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 int indices_offset[] = {
+ 0, 6 * sizeof(GLuint)
+};
+static GLsizei indices_count[] = {
+ 6, 6
+};
+
+static GLint basevertex[] = { 2, 2 };
+
+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");
+ }
+
+ piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
+
+ // 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 index 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);
+
+ glMultiDrawElementsBaseVertex(GL_TRIANGLES, indices_count,
+ GL_UNSIGNED_INT, (GLvoid*)indices_offset,
+ 2, basevertex);
+
+ // Check for test pass
+ pass = piglit_probe_pixel_rgb(24, 42, clear) && pass;
+ pass = piglit_probe_pixel_rgb(24, 30, white) && 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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