| // Copyright 2017 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "core/fpdfapi/page/cpdf_devicecs.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| TEST(CPDF_DeviceCSTest, GetRGBFromGray) { |
| float R; |
| float G; |
| float B; |
| CPDF_DeviceCS device_gray(PDFCS_DEVICEGRAY); |
| |
| // Test normal values. For gray, only first value from buf should be used. |
| float buf[3] = {0.43f, 0.11f, 0.34f}; |
| ASSERT_TRUE(device_gray.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.43f, R); |
| EXPECT_FLOAT_EQ(0.43f, G); |
| EXPECT_FLOAT_EQ(0.43f, B); |
| buf[0] = 0.872f; |
| ASSERT_TRUE(device_gray.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.872f, R); |
| EXPECT_FLOAT_EQ(0.872f, G); |
| EXPECT_FLOAT_EQ(0.872f, B); |
| |
| // Test boundary values |
| buf[0] = {0.0f}; |
| ASSERT_TRUE(device_gray.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.0f, R); |
| EXPECT_FLOAT_EQ(0.0f, G); |
| EXPECT_FLOAT_EQ(0.0f, B); |
| buf[0] = 1.0f; |
| ASSERT_TRUE(device_gray.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(1.0f, R); |
| EXPECT_FLOAT_EQ(1.0f, G); |
| EXPECT_FLOAT_EQ(1.0f, B); |
| |
| // Test out of range values |
| buf[0] = -0.01f; |
| ASSERT_TRUE(device_gray.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.0f, R); |
| EXPECT_FLOAT_EQ(0.0f, G); |
| EXPECT_FLOAT_EQ(0.0f, B); |
| buf[0] = 12.5f; |
| ASSERT_TRUE(device_gray.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(1.0f, R); |
| EXPECT_FLOAT_EQ(1.0f, G); |
| EXPECT_FLOAT_EQ(1.0f, B); |
| } |
| |
| TEST(CPDF_DeviceCSTest, GetRGBFromRGB) { |
| float R; |
| float G; |
| float B; |
| CPDF_DeviceCS device_rgb(PDFCS_DEVICERGB); |
| |
| // Test normal values |
| float buf[3] = {0.13f, 1.0f, 0.652f}; |
| ASSERT_TRUE(device_rgb.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.13f, R); |
| EXPECT_FLOAT_EQ(1.0f, G); |
| EXPECT_FLOAT_EQ(0.652f, B); |
| buf[0] = 0.0f; |
| buf[1] = 0.52f; |
| buf[2] = 0.78f; |
| ASSERT_TRUE(device_rgb.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.0f, R); |
| EXPECT_FLOAT_EQ(0.52f, G); |
| EXPECT_FLOAT_EQ(0.78f, B); |
| |
| // Test out of range values |
| buf[0] = -10.5f; |
| buf[1] = 100.0f; |
| ASSERT_TRUE(device_rgb.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.0f, R); |
| EXPECT_FLOAT_EQ(1.0f, G); |
| EXPECT_FLOAT_EQ(0.78f, B); |
| } |
| |
| TEST(CPDF_DeviceCSTest, GetRGBFromCMYK) { |
| float R; |
| float G; |
| float B; |
| CPDF_DeviceCS device_cmyk(PDFCS_DEVICECMYK); |
| |
| // Test normal values |
| float buf[4] = {0.6f, 0.5f, 0.3f, 0.9f}; |
| ASSERT_TRUE(device_cmyk.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.0627451f, R); |
| EXPECT_FLOAT_EQ(0.0627451f, G); |
| EXPECT_FLOAT_EQ(0.10588236f, B); |
| buf[0] = 0.15f; |
| buf[2] = 0.0f; |
| ASSERT_TRUE(device_cmyk.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.2f, R); |
| EXPECT_FLOAT_EQ(0.0862745f, G); |
| EXPECT_FLOAT_EQ(0.16470589f, B); |
| buf[2] = 1.0f; |
| buf[3] = 0.0f; |
| ASSERT_TRUE(device_cmyk.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.85098046f, R); |
| EXPECT_FLOAT_EQ(0.552941f, G); |
| EXPECT_FLOAT_EQ(0.15686275f, B); |
| |
| // Test out of range values |
| buf[2] = 1.5f; |
| buf[3] = -0.6f; |
| ASSERT_TRUE(device_cmyk.GetRGB(buf, &R, &G, &B)); |
| EXPECT_FLOAT_EQ(0.85098046f, R); |
| EXPECT_FLOAT_EQ(0.552941f, G); |
| EXPECT_FLOAT_EQ(0.15686275f, B); |
| } |