test_graphics_3d.cc revision 4e180b6a0b4720a9b8e9e959a882386f690f08ff 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "ppapi/tests/test_graphics_3d.h"
6
7#include <GLES2/gl2.h>
8#include <GLES2/gl2ext.h>
9#include <stdio.h>
10#include <stdlib.h>
11#include <string.h>
12
13#include "ppapi/c/dev/ppb_testing_dev.h"
14#include "ppapi/c/ppb_opengles2.h"
15#include "ppapi/cpp/graphics_3d.h"
16#include "ppapi/cpp/module.h"
17#include "ppapi/lib/gl/gles2/gl2ext_ppapi.h"
18#include "ppapi/tests/test_case.h"
19#include "ppapi/tests/test_utils.h"
20#include "ppapi/tests/testing_instance.h"
21
22const int32_t kInvalidContext = 0;
23
24REGISTER_TEST_CASE(Graphics3D);
25
26bool TestGraphics3D::Init() {
27  opengl_es2_ = static_cast<const PPB_OpenGLES2*>(
28      pp::Module::Get()->GetBrowserInterface(PPB_OPENGLES2_INTERFACE));
29  glInitializePPAPI(pp::Module::Get()->get_browser_interface());
30  return opengl_es2_ && CheckTestingInterface();
31}
32
33void TestGraphics3D::RunTests(const std::string& filter) {
34  RUN_CALLBACK_TEST(TestGraphics3D, FramePPAPI, filter);
35  RUN_CALLBACK_TEST(TestGraphics3D, FrameGL, filter);
36  RUN_CALLBACK_TEST(TestGraphics3D, ExtensionsGL, filter);
37  RUN_CALLBACK_TEST(TestGraphics3D, BadResource, filter);
38}
39
40std::string TestGraphics3D::TestFramePPAPI() {
41  const int width = 16;
42  const int height = 16;
43  const int32_t attribs[] = {
44      PP_GRAPHICS3DATTRIB_WIDTH, width,
45      PP_GRAPHICS3DATTRIB_HEIGHT, height,
46      PP_GRAPHICS3DATTRIB_NONE
47  };
48  pp::Graphics3D context(instance_, attribs);
49  ASSERT_FALSE(context.is_null());
50
51  const uint8_t red_color[4] = {255, 0, 0, 255};
52
53  // Access OpenGLES API through the PPAPI interface.
54  // Clear color buffer to opaque red.
55  opengl_es2_->ClearColor(context.pp_resource(), 1.0f, 0.0f, 0.0f, 1.0f);
56  opengl_es2_->Clear(context.pp_resource(), GL_COLOR_BUFFER_BIT);
57  // Check if the color buffer has opaque red.
58  std::string error = CheckPixelPPAPI(&context, width/2, height/2, red_color);
59  if (!error.empty())
60    return error;
61
62  int32_t rv = SwapBuffersSync(&context);
63  ASSERT_EQ(rv, PP_OK);
64
65  PASS();
66}
67
68std::string TestGraphics3D::TestFrameGL() {
69  const int width = 16;
70  const int height = 16;
71  const int32_t attribs[] = {
72      PP_GRAPHICS3DATTRIB_WIDTH, width,
73      PP_GRAPHICS3DATTRIB_HEIGHT, height,
74      PP_GRAPHICS3DATTRIB_NONE
75  };
76  pp::Graphics3D context(instance_, attribs);
77  ASSERT_FALSE(context.is_null());
78
79  const uint8_t red_color[4] = {255, 0, 0, 255};
80  // Perform same operations as TestFramePPAPI, but use OpenGLES API directly.
81  // This is how most developers will use OpenGLES.
82  glSetCurrentContextPPAPI(context.pp_resource());
83  glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
84  glClear(GL_COLOR_BUFFER_BIT);
85  std::string error = CheckPixelGL(width/2, height/2, red_color);
86  glSetCurrentContextPPAPI(kInvalidContext);
87  if (!error.empty())
88    return error;
89
90  int32_t rv = SwapBuffersSync(&context);
91  ASSERT_EQ(rv, PP_OK);
92
93  PASS();
94}
95
96std::string TestGraphics3D::TestExtensionsGL() {
97  const int width = 16;
98  const int height = 16;
99  const int32_t attribs[] = {
100      PP_GRAPHICS3DATTRIB_WIDTH, width,
101      PP_GRAPHICS3DATTRIB_HEIGHT, height,
102      PP_GRAPHICS3DATTRIB_NONE
103  };
104  pp::Graphics3D context(instance_, attribs);
105  ASSERT_FALSE(context.is_null());
106
107  glSetCurrentContextPPAPI(context.pp_resource());
108  glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
109  glClear(GL_COLOR_BUFFER_BIT);
110
111  // Ask about a couple of extensions via glGetString.  If an extension is
112  // available, try a couple of trivial calls.  This test is not intended
113  // to be exhaustive; check the source can compile, link, and run without
114  // crashing.
115  ASSERT_NE(glGetString(GL_VERSION), NULL);
116  const char* ext = reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS));
117  if (strstr(ext, "GL_EXT_occlusion_query_boolean")) {
118    GLuint a_query;
119    GLboolean is_a_query;
120    glGenQueriesEXT(1, &a_query);
121    ASSERT_NE(a_query, 0);
122    glBeginQueryEXT(GL_ANY_SAMPLES_PASSED_EXT, a_query);
123    is_a_query = glIsQueryEXT(a_query);
124    ASSERT_EQ(is_a_query, GL_TRUE);
125    glEndQueryEXT(GL_ANY_SAMPLES_PASSED_EXT);
126    glDeleteQueriesEXT(1, &a_query);
127  }
128  if (strstr(ext, "GL_ANGLE_instanced_arrays")) {
129    glDrawArraysInstancedANGLE(GL_TRIANGLE_STRIP, 0, 0, 0);
130  }
131  glSetCurrentContextPPAPI(kInvalidContext);
132
133  int32_t rv = SwapBuffersSync(&context);
134  ASSERT_EQ(rv, PP_OK);
135
136  PASS();
137}
138
139int32_t TestGraphics3D::SwapBuffersSync(pp::Graphics3D* context) {
140  TestCompletionCallback callback(instance_->pp_instance(), callback_type());
141  callback.WaitForResult(context->SwapBuffers(callback.GetCallback()));
142  return callback.result();
143}
144
145std::string TestGraphics3D::CheckPixelPPAPI(
146    pp::Graphics3D* context,
147    int x, int y, const uint8_t expected_color[4]) {
148  GLubyte pixel_color[4];
149  opengl_es2_->ReadPixels(context->pp_resource(),
150      x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel_color);
151
152  ASSERT_EQ(pixel_color[0], expected_color[0]);
153  ASSERT_EQ(pixel_color[1], expected_color[1]);
154  ASSERT_EQ(pixel_color[2], expected_color[2]);
155  ASSERT_EQ(pixel_color[3], expected_color[3]);
156  PASS();
157}
158
159std::string TestGraphics3D::CheckPixelGL(
160    int x, int y, const uint8_t expected_color[4]) {
161  GLubyte pixel_color[4];
162  glReadPixels(x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel_color);
163
164  ASSERT_EQ(pixel_color[0], expected_color[0]);
165  ASSERT_EQ(pixel_color[1], expected_color[1]);
166  ASSERT_EQ(pixel_color[2], expected_color[2]);
167  ASSERT_EQ(pixel_color[3], expected_color[3]);
168  PASS();
169}
170
171std::string TestGraphics3D::TestBadResource() {
172  // The point of this test is mostly just to make sure that we don't crash and
173  // provide reasonable (error) results when the resource is bad.
174  const PP_Resource kBadResource = 123;
175
176  // Access OpenGLES API through the PPAPI interface.
177  opengl_es2_->ClearColor(kBadResource, 0.0f, 0.0f, 0.0f, 0.0f);
178  opengl_es2_->Clear(kBadResource, GL_COLOR_BUFFER_BIT);
179  ASSERT_EQ(0, opengl_es2_->GetError(kBadResource));
180  ASSERT_EQ(NULL, opengl_es2_->GetString(kBadResource, GL_VERSION));
181  ASSERT_EQ(-1, opengl_es2_->GetUniformLocation(kBadResource, 0, NULL));
182  ASSERT_EQ(GL_FALSE, opengl_es2_->IsBuffer(kBadResource, 0));
183  ASSERT_EQ(0, opengl_es2_->CheckFramebufferStatus(kBadResource,
184                                                   GL_DRAW_FRAMEBUFFER));
185
186  glSetCurrentContextPPAPI(kBadResource);
187  glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
188  glClear(GL_COLOR_BUFFER_BIT);
189  ASSERT_EQ(0, glGetError());
190  ASSERT_EQ(NULL, glGetString(GL_VERSION));
191  ASSERT_EQ(-1, glGetUniformLocation(0, NULL));
192  ASSERT_EQ(GL_FALSE, glIsBuffer(0));
193  ASSERT_EQ(0, glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER));
194  glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
195  glClear(GL_COLOR_BUFFER_BIT);
196
197  PASS();
198}
199
200