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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/tests/test_graphics_3d.h"
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ppapi/c/ppb_opengles2.h"
#include "ppapi/cpp/graphics_3d.h"
#include "ppapi/cpp/module.h"
#include "ppapi/lib/gl/gles2/gl2ext_ppapi.h"
#include "ppapi/tests/test_case.h"
#include "ppapi/tests/test_utils.h"
#include "ppapi/tests/testing_instance.h"
const int32_t kInvalidContext = 0;
REGISTER_TEST_CASE(Graphics3D);
bool TestGraphics3D::Init() {
opengl_es2_ = static_cast<const PPB_OpenGLES2*>(
pp::Module::Get()->GetBrowserInterface(PPB_OPENGLES2_INTERFACE));
glInitializePPAPI(pp::Module::Get()->get_browser_interface());
return opengl_es2_ && CheckTestingInterface();
}
void TestGraphics3D::RunTests(const std::string& filter) {
RUN_CALLBACK_TEST(TestGraphics3D, FramePPAPI, filter);
RUN_CALLBACK_TEST(TestGraphics3D, FrameGL, filter);
RUN_CALLBACK_TEST(TestGraphics3D, ExtensionsGL, filter);
RUN_CALLBACK_TEST(TestGraphics3D, BadResource, filter);
}
std::string TestGraphics3D::TestFramePPAPI() {
const int width = 16;
const int height = 16;
const int32_t attribs[] = {
PP_GRAPHICS3DATTRIB_WIDTH, width,
PP_GRAPHICS3DATTRIB_HEIGHT, height,
PP_GRAPHICS3DATTRIB_NONE
};
pp::Graphics3D context(instance_, attribs);
ASSERT_FALSE(context.is_null());
const uint8_t red_color[4] = {255, 0, 0, 255};
// Access OpenGLES API through the PPAPI interface.
// Clear color buffer to opaque red.
opengl_es2_->ClearColor(context.pp_resource(), 1.0f, 0.0f, 0.0f, 1.0f);
opengl_es2_->Clear(context.pp_resource(), GL_COLOR_BUFFER_BIT);
// Check if the color buffer has opaque red.
std::string error = CheckPixelPPAPI(&context, width/2, height/2, red_color);
if (!error.empty())
return error;
int32_t rv = SwapBuffersSync(&context);
ASSERT_EQ(PP_OK, rv);
PASS();
}
std::string TestGraphics3D::TestFrameGL() {
const int width = 16;
const int height = 16;
const int32_t attribs[] = {
PP_GRAPHICS3DATTRIB_WIDTH, width,
PP_GRAPHICS3DATTRIB_HEIGHT, height,
PP_GRAPHICS3DATTRIB_NONE
};
pp::Graphics3D context(instance_, attribs);
ASSERT_FALSE(context.is_null());
const uint8_t red_color[4] = {255, 0, 0, 255};
// Perform same operations as TestFramePPAPI, but use OpenGLES API directly.
// This is how most developers will use OpenGLES.
glSetCurrentContextPPAPI(context.pp_resource());
glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
std::string error = CheckPixelGL(width/2, height/2, red_color);
glSetCurrentContextPPAPI(kInvalidContext);
if (!error.empty())
return error;
int32_t rv = SwapBuffersSync(&context);
ASSERT_EQ(PP_OK, rv);
PASS();
}
std::string TestGraphics3D::TestExtensionsGL() {
const int width = 16;
const int height = 16;
const int32_t attribs[] = {
PP_GRAPHICS3DATTRIB_WIDTH, width,
PP_GRAPHICS3DATTRIB_HEIGHT, height,
PP_GRAPHICS3DATTRIB_NONE
};
pp::Graphics3D context(instance_, attribs);
ASSERT_FALSE(context.is_null());
glSetCurrentContextPPAPI(context.pp_resource());
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
// Ask about a couple of extensions via glGetString. If an extension is
// available, try a couple of trivial calls. This test is not intended
// to be exhaustive; check the source can compile, link, and run without
// crashing.
ASSERT_NE(NULL, glGetString(GL_VERSION));
const char* ext = reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS));
if (strstr(ext, "GL_EXT_occlusion_query_boolean")) {
GLuint a_query = 0;
glGenQueriesEXT(1, &a_query);
ASSERT_NE(0, a_query);
glBeginQueryEXT(GL_ANY_SAMPLES_PASSED_EXT, a_query);
GLboolean is_a_query = glIsQueryEXT(a_query);
ASSERT_EQ(is_a_query, GL_TRUE);
glEndQueryEXT(GL_ANY_SAMPLES_PASSED_EXT);
glDeleteQueriesEXT(1, &a_query);
}
if (strstr(ext, "GL_ANGLE_instanced_arrays")) {
glDrawArraysInstancedANGLE(GL_TRIANGLE_STRIP, 0, 0, 0);
}
if (strstr(ext, "GL_OES_vertex_array_object")) {
GLuint a_vertex_array = 0;
glGenVertexArraysOES(1, &a_vertex_array);
ASSERT_NE(0, a_vertex_array);
glBindVertexArrayOES(a_vertex_array);
GLboolean is_a_vertex_array = glIsVertexArrayOES(a_vertex_array);
ASSERT_EQ(is_a_vertex_array, GL_TRUE);
glBindVertexArrayOES(0);
glDeleteVertexArraysOES(1, &a_vertex_array);
}
glSetCurrentContextPPAPI(kInvalidContext);
int32_t rv = SwapBuffersSync(&context);
ASSERT_EQ(PP_OK, rv);
PASS();
}
int32_t TestGraphics3D::SwapBuffersSync(pp::Graphics3D* context) {
TestCompletionCallback callback(instance_->pp_instance(), callback_type());
callback.WaitForResult(context->SwapBuffers(callback.GetCallback()));
return callback.result();
}
std::string TestGraphics3D::CheckPixelPPAPI(
pp::Graphics3D* context,
int x, int y, const uint8_t expected_color[4]) {
GLubyte pixel_color[4];
opengl_es2_->ReadPixels(context->pp_resource(),
x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel_color);
ASSERT_EQ(pixel_color[0], expected_color[0]);
ASSERT_EQ(pixel_color[1], expected_color[1]);
ASSERT_EQ(pixel_color[2], expected_color[2]);
ASSERT_EQ(pixel_color[3], expected_color[3]);
PASS();
}
std::string TestGraphics3D::CheckPixelGL(
int x, int y, const uint8_t expected_color[4]) {
GLubyte pixel_color[4];
glReadPixels(x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel_color);
ASSERT_EQ(pixel_color[0], expected_color[0]);
ASSERT_EQ(pixel_color[1], expected_color[1]);
ASSERT_EQ(pixel_color[2], expected_color[2]);
ASSERT_EQ(pixel_color[3], expected_color[3]);
PASS();
}
std::string TestGraphics3D::TestBadResource() {
// The point of this test is mostly just to make sure that we don't crash and
// provide reasonable (error) results when the resource is bad.
const PP_Resource kBadResource = 123;
// Access OpenGLES API through the PPAPI interface.
opengl_es2_->ClearColor(kBadResource, 0.0f, 0.0f, 0.0f, 0.0f);
opengl_es2_->Clear(kBadResource, GL_COLOR_BUFFER_BIT);
ASSERT_EQ(0, opengl_es2_->GetError(kBadResource));
ASSERT_EQ(NULL, opengl_es2_->GetString(kBadResource, GL_VERSION));
ASSERT_EQ(-1, opengl_es2_->GetUniformLocation(kBadResource, 0, NULL));
ASSERT_EQ(GL_FALSE, opengl_es2_->IsBuffer(kBadResource, 0));
ASSERT_EQ(0, opengl_es2_->CheckFramebufferStatus(kBadResource,
GL_DRAW_FRAMEBUFFER));
glSetCurrentContextPPAPI(kBadResource);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
ASSERT_EQ(0, glGetError());
ASSERT_EQ(NULL, glGetString(GL_VERSION));
ASSERT_EQ(-1, glGetUniformLocation(0, NULL));
ASSERT_EQ(GL_FALSE, glIsBuffer(0));
ASSERT_EQ(0, glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER));
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
PASS();
}
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