[Piglit] [PATCH] Implement piglits for OES_draw_elements_base_vertex
Ryan Houdek
sonicadvance1 at gmail.com
Fri Oct 30 12:24:04 PDT 2015
---
tests/spec/CMakeLists.txt | 1 +
.../CMakeLists.gles2.txt | 14 ++
.../oes_draw_elements_base_vertex/CMakeLists.txt | 1 +
.../drawelements-instanced.c | 190 +++++++++++++++++++++
.../oes_draw_elements_base_vertex/drawelements.c | 181 ++++++++++++++++++++
.../drawrangeelements.c | 143 ++++++++++++++++
.../multidrawelements.c | 175 +++++++++++++++++++
7 files changed, 705 insertions(+)
create mode 100644 tests/spec/oes_draw_elements_base_vertex/CMakeLists.gles2.txt
create mode 100644 tests/spec/oes_draw_elements_base_vertex/CMakeLists.txt
create mode 100644 tests/spec/oes_draw_elements_base_vertex/drawelements-instanced.c
create mode 100644 tests/spec/oes_draw_elements_base_vertex/drawelements.c
create mode 100644 tests/spec/oes_draw_elements_base_vertex/drawrangeelements.c
create mode 100644 tests/spec/oes_draw_elements_base_vertex/multidrawelements.c
diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index 61f013a..eeedc4c 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -135,3 +135,4 @@ add_subdirectory (arb_vertex_attrib_64bit)
add_subdirectory (ext_framebuffer_blit)
add_subdirectory (mesa_pack_invert)
add_subdirectory (ext_texture_format_bgra8888)
+add_subdirectory (oes_draw_elements_base_vertex)
diff --git a/tests/spec/oes_draw_elements_base_vertex/CMakeLists.gles2.txt b/tests/spec/oes_draw_elements_base_vertex/CMakeLists.gles2.txt
new file mode 100644
index 0000000..bd50394
--- /dev/null
+++ b/tests/spec/oes_draw_elements_base_vertex/CMakeLists.gles2.txt
@@ -0,0 +1,14 @@
+include_directories(
+ ${GLEXT_INCLUDE_DIR}
+ ${OPENGL_INCLUDE_PATH}
+)
+
+link_libraries (
+ piglitutil_${piglit_target_api}
+ ${OPENGL_gl_LIBRARY}
+)
+
+piglit_add_executable (oes_draw_elements_base_vertex-drawelements drawelements.c)
+piglit_add_executable (oes_draw_elements_base_vertex-drawrangeelements drawrangeelements.c)
+piglit_add_executable (oes_draw_elements_base_vertex-drawelements-instanced drawelements-instanced.c)
+piglit_add_executable (oes_draw_elements_base_vertex-multidrawelements multidrawelements.c)
diff --git a/tests/spec/oes_draw_elements_base_vertex/CMakeLists.txt b/tests/spec/oes_draw_elements_base_vertex/CMakeLists.txt
new file mode 100644
index 0000000..144a306
--- /dev/null
+++ b/tests/spec/oes_draw_elements_base_vertex/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
diff --git a/tests/spec/oes_draw_elements_base_vertex/drawelements-instanced.c b/tests/spec/oes_draw_elements_base_vertex/drawelements-instanced.c
new file mode 100644
index 0000000..71cfc29
--- /dev/null
+++ b/tests/spec/oes_draw_elements_base_vertex/drawelements-instanced.c
@@ -0,0 +1,190 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+/* Tests OES_draw_elements_base_vertex functionality by drawing a checkerboard
+ * of quads using different base vertices using the same vertex and
+ * index buffers and instancing
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_es_version = 30;
+
+ config.window_width = 300;
+ config.window_height = 300;
+ config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+#define NUM_QUADS 10
+const GLfloat inc_amount = 2.0 / NUM_QUADS;
+const int window_width = 300;
+const int window_height = 300;
+
+const char *vs_source = {
+ "#version 300 es\n"
+ "in vec2 vertex;\n"
+ "in float xOffsetPerInstance;\n"
+ "void main() {\n"
+ " vec2 p = vertex;\n"
+ " p.y -= 1.0 * float(gl_InstanceID);\n"
+ " p.x += xOffsetPerInstance * float(gl_InstanceID);\n"
+ " gl_Position = vec4(p, 0, 1);\n"
+ "}\n"
+};
+
+const char *fs_source = {
+ "#version 300 es\n"
+ "out highp vec4 ocol;\n"
+ "void main() {\n"
+ " ocol = vec4(1, 1, 1, 1);\n"
+ "}\n"
+};
+
+static GLushort indices[] = {
+ 0, 1, 2, 1, 2, 3
+};
+static GLsizei indices_size = sizeof(indices);
+
+static GLuint vao;
+static GLuint vertexBuffer;
+static GLuint indexBuffer;
+
+void
+piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_OES_draw_elements_base_vertex");
+
+ GLuint program;
+ GLuint vertex_index;
+ GLuint xoffset_index;
+
+ GLfloat* vertices = malloc(4 * 2 * NUM_QUADS * sizeof(GLfloat));
+ GLsizei vertices_size = 4 * 2 * NUM_QUADS * sizeof(GLfloat);
+
+ // Generate a checkerboard pattern
+ // |x x x x x |
+ // | x x x x x|
+ int i;
+ for (i = 0; i < NUM_QUADS; ++i)
+ {
+ GLfloat xoffset, yoffset;
+ GLfloat x[4], y[4];
+
+ xoffset = inc_amount * i - 1.0;
+ yoffset = 1.0;
+
+ // Top-left
+ x[0] = xoffset;
+ y[0] = yoffset;
+
+ // Top-right
+ x[1] = xoffset + inc_amount / 2.0;
+ y[1] = yoffset;
+
+ // Bottom-left
+ x[2] = xoffset;
+ y[2] = yoffset - 1.0;
+
+ // Bottom-right
+ x[3] = xoffset + inc_amount / 2.0;
+ y[3] = yoffset - 1.0;
+
+ vertices[i * 8 + 0] = x[0];
+ vertices[i * 8 + 1] = y[0];
+
+ vertices[i * 8 + 2] = x[1];
+ vertices[i * 8 + 3] = y[1];
+
+ vertices[i * 8 + 4] = x[2];
+ vertices[i * 8 + 5] = y[2];
+
+ vertices[i * 8 + 6] = x[3];
+ vertices[i * 8 + 7] = y[3];
+ }
+
+ /* 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);
+
+ xoffset_index = glGetAttribLocation(program, "xOffsetPerInstance");
+ glVertexAttrib1f(xoffset_index, inc_amount / 2.0);
+
+ /* 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)
+{
+ GLboolean pass = GL_TRUE;
+ float white[] = {1.0, 1.0, 1.0, 1.0};
+ int i;
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glBindVertexArray(vao);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
+
+ for (i = 0; i < NUM_QUADS; ++i)
+ glDrawElementsInstancedBaseVertexOES(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, NULL, 2, i * 4);
+
+ for (i = 0; i < (NUM_QUADS * 2); ++i)
+ {
+ GLfloat xoffset[2], yoffset[2];
+
+ xoffset[0] = inc_amount * i / 4.0 * window_width;
+ xoffset[1] = inc_amount * (i + 1) / 4.0 * window_width;
+ yoffset[0] = (i % 2 ? 0.0 : 0.5) * window_height;
+ yoffset[1] = yoffset[0] + window_height / 2;
+
+ pass = piglit_probe_rect_rgba(xoffset[0], yoffset[0],
+ xoffset[1] - xoffset[0], yoffset[1] - yoffset[0], white) && pass;
+ }
+
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
diff --git a/tests/spec/oes_draw_elements_base_vertex/drawelements.c b/tests/spec/oes_draw_elements_base_vertex/drawelements.c
new file mode 100644
index 0000000..0333d8e
--- /dev/null
+++ b/tests/spec/oes_draw_elements_base_vertex/drawelements.c
@@ -0,0 +1,181 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+/* Tests OES_draw_elements_base_vertex functionality by drawing a checkerboard
+ * of quads using different base vertices using the same vertex and
+ * index buffers
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_es_version = 20;
+
+ config.window_width = 300;
+ config.window_height = 300;
+ config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+#define NUM_QUADS 10
+const GLfloat inc_amount = 2.0 / NUM_QUADS;
+const int window_width = 300;
+const int window_height = 300;
+
+const char *vs_source = {
+ "#version 100\n"
+ "attribute vec2 vertex;\n"
+ "void main() {\n"
+ " gl_Position = vec4(vertex.xy, 0, 1);\n"
+ "}\n"
+};
+
+const char *fs_source = {
+ "#version 100\n"
+ "void main() {\n"
+ " gl_FragColor = vec4(1, 1, 1, 1);\n"
+ "}\n"
+};
+
+static GLushort indices[] = {
+ 0, 1, 2, 1, 2, 3
+};
+static GLsizei indices_size = sizeof(indices);
+
+static GLuint vao;
+static GLuint vertexBuffer;
+static GLuint indexBuffer;
+
+void
+piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_OES_draw_elements_base_vertex");
+
+ GLuint program;
+ GLuint vertex_index;
+
+ GLfloat* vertices = malloc(4 * 2 * NUM_QUADS * sizeof(GLfloat));
+ GLsizei vertices_size = 4 * 2 * NUM_QUADS * sizeof(GLfloat);
+
+ // Generate a checkerboard pattern
+ // |x x x x x |
+ // | x x x x x|
+ int i;
+ for (i = 0; i < NUM_QUADS; ++i)
+ {
+ GLfloat xoffset, yoffset;
+ GLfloat x[4], y[4];
+
+ xoffset = inc_amount * i - 1.0;
+ yoffset = i % 2 ? 0.0 : 1.0;
+
+ // Top-left
+ x[0] = xoffset;
+ y[0] = yoffset;
+
+ // Top-right
+ x[1] = xoffset + inc_amount;
+ y[1] = yoffset;
+
+ // Bottom-left
+ x[2] = xoffset;
+ y[2] = yoffset - 1.0;
+
+ // Bottom-right
+ x[3] = xoffset + inc_amount;
+ y[3] = yoffset - 1.0;
+
+ vertices[i * 8 + 0] = x[0];
+ vertices[i * 8 + 1] = y[0];
+
+ vertices[i * 8 + 2] = x[1];
+ vertices[i * 8 + 3] = y[1];
+
+ vertices[i * 8 + 4] = x[2];
+ vertices[i * 8 + 5] = y[2];
+
+ vertices[i * 8 + 6] = x[3];
+ vertices[i * 8 + 7] = y[3];
+ }
+
+ /* 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)
+{
+ GLboolean pass = GL_TRUE;
+ float white[] = {1.0, 1.0, 1.0, 1.0};
+ int i;
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glBindVertexArray(vao);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
+
+ for (i = 0; i < NUM_QUADS; ++i)
+ glDrawElementsBaseVertexOES(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, NULL, i * 4);
+
+ for (i = 0; i < NUM_QUADS; ++i)
+ {
+ GLfloat xoffset[2], yoffset[2];
+
+ xoffset[0] = inc_amount * i / 2.0 * window_width;
+ xoffset[1] = inc_amount * (i + 1) / 2.0 * window_width;
+ yoffset[0] = (i % 2 ? 0.0 : 0.5) * window_height;
+ yoffset[1] = yoffset[0] + window_height / 2;
+
+ pass = piglit_probe_rect_rgba(xoffset[0], yoffset[0],
+ xoffset[1] - xoffset[0], yoffset[1] - yoffset[0], white) && pass;
+ }
+
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
diff --git a/tests/spec/oes_draw_elements_base_vertex/drawrangeelements.c b/tests/spec/oes_draw_elements_base_vertex/drawrangeelements.c
new file mode 100644
index 0000000..6042c72
--- /dev/null
+++ b/tests/spec/oes_draw_elements_base_vertex/drawrangeelements.c
@@ -0,0 +1,143 @@
+/*
+ *
+ * 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.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_es_version = 30;
+
+ config.window_width = 200;
+ config.window_height = 200;
+ config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+const char *vs_source = {
+ "#version 300 es\n"
+ "in vec2 vertex;\n"
+ "void main() {\n"
+ " gl_Position = vec4(vertex.xy, 0, 1);\n"
+ "}\n"
+};
+
+const char *fs_source = {
+ "#version 300 es\n"
+ "out highp vec4 ocol;\n"
+ "void main() {\n"
+ " ocol = vec4(0, 1, 0, 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 GLushort indices[] = {
+ 0, 1, 2, 1, 2, 3, /* Top Quad */
+ 4, 5, 6, 5, 6, 7, /* Bot Quad */
+};
+static GLsizei indices_size = sizeof(indices);
+
+void
+piglit_init(int argc, char **argv)
+{
+ GLuint program;
+ GLuint vertex_index;
+
+ piglit_require_extension("GL_OES_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 green[] = {0, 1, 0, 1};
+ float blue[] = {0, 0, 1, 1};
+
+ glClearColor(blue[0], blue[1], blue[2], 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glBindVertexArray(vao);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
+
+ /* Top Quad */
+ glDrawRangeElementsBaseVertexOES(GL_TRIANGLES, 0, 3, 6, GL_UNSIGNED_SHORT,
+ NULL, 0);
+
+ /* Bot Quad */
+ glDrawRangeElementsBaseVertexOES(GL_TRIANGLES, 4, 7, 6, GL_UNSIGNED_SHORT,
+ (GLvoid *)(sizeof(GLushort)*6), 2);
+
+ /* Check for test pass */
+ pass = piglit_probe_pixel_rgba(100, 175, green) && pass;
+ pass = piglit_probe_pixel_rgba(100, 125, blue) && pass;
+ pass = piglit_probe_pixel_rgba(100, 75, blue) && pass;
+ pass = piglit_probe_pixel_rgba(100, 25, green) && pass;
+
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
diff --git a/tests/spec/oes_draw_elements_base_vertex/multidrawelements.c b/tests/spec/oes_draw_elements_base_vertex/multidrawelements.c
new file mode 100644
index 0000000..8b6d5c0
--- /dev/null
+++ b/tests/spec/oes_draw_elements_base_vertex/multidrawelements.c
@@ -0,0 +1,175 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+/**
+ *
+ * (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
+ * | 4 | blue while 2 and 4 are green.
+ * (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.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_es_version = 20;
+
+ config.window_width = 200;
+ config.window_height = 200;
+ config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+const char *vs_source = {
+ "#version 100\n"
+ "attribute vec2 vertex;\n"
+ "void main() {\n"
+ " gl_Position = vec4(vertex.xy, 0, 1);\n"
+ "}\n"
+};
+
+const char *fs_source = {
+ "#version 100\n"
+ "void main() {\n"
+ " gl_FragColor = vec4(0, 1, 0, 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 GLushort indices[] = {
+ 0, 1, 2, 1, 2, 3, /* top square */
+ 4, 5, 6, 5, 6, 7, /* bot square */
+};
+static GLsizei indices_size = sizeof(indices);
+
+static const GLvoid * const indices_offset[] = {
+ (GLvoid*) 0, (GLvoid*)(6 * sizeof(GLushort))
+};
+static GLsizei indices_count[] = {
+ 6, 6
+};
+
+static GLint basevertex[] = { 2, 2 };
+
+void
+piglit_init(int argc, char **argv)
+{
+ GLuint program;
+ GLuint vertex_index;
+
+ piglit_require_extension("GL_OES_draw_elements_base_vertex");
+ piglit_require_extension("GL_EXT_multi_draw_arrays");
+
+ /* 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 green[] = {0, 1, 0, 1};
+ float blue[] = {0, 0, 1, 1};
+
+ glClearColor(blue[0], blue[1], blue[2], 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glBindVertexArray(vao);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
+
+ glMultiDrawElementsBaseVertexEXT(GL_TRIANGLES, indices_count,
+ GL_UNSIGNED_SHORT, (GLvoid*)indices_offset,
+ 2, basevertex);
+
+ /* Check for test pass */
+ pass = piglit_probe_pixel_rgba(100, 175, blue) && pass;
+ pass = piglit_probe_pixel_rgba(100, 125, green) && pass;
+ pass = piglit_probe_pixel_rgba(100, 75, blue) && pass;
+ pass = piglit_probe_pixel_rgba(100, 25, green) && pass;
+
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
--
1.9.1
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