pixel.test.cc

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#include <gtest/gtest.h>
 
#include "base/pixel.hh"
 
using namespace gem5;
 
static Pixel pixel_red(0xff, 0x00, 0x00);
static Pixel pixel_green(0x00, 0xff, 0x00);
static Pixel pixel_blue(0x00, 0x00, 0xff);
 
TEST(FBTest, PixelConversionRGBA8888)
{
    EXPECT_EQ(PixelConverter::rgba8888_le.fromPixel(pixel_red),
              0x000000ffU);
    EXPECT_EQ(PixelConverter::rgba8888_le.fromPixel(pixel_green),
              0x0000ff00U);
    EXPECT_EQ(PixelConverter::rgba8888_le.fromPixel(pixel_blue),
              0x00ff0000U);
 
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(0x000000ffU),
              pixel_red);
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(0x0000ff00U),
              pixel_green);
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(0x00ff0000U),
              pixel_blue);
}
 
TEST(FBTest, PixelConversionRGB565)
{
    EXPECT_EQ(PixelConverter::rgb565_le.fromPixel(pixel_red),   0x001fU);
    EXPECT_EQ(PixelConverter::rgb565_le.fromPixel(pixel_green), 0x07e0U);
    EXPECT_EQ(PixelConverter::rgb565_le.fromPixel(pixel_blue),  0xf800U);
 
    EXPECT_EQ(PixelConverter::rgb565_le.toPixel(0x001fU), pixel_red);
    EXPECT_EQ(PixelConverter::rgb565_le.toPixel(0x07e0U), pixel_green);
    EXPECT_EQ(PixelConverter::rgb565_le.toPixel(0xf800U), pixel_blue);
}
 
TEST(FBTest, PixelToMemRGBA8888LE)
{
    uint8_t data[] = { 0xde, 0xad, 0xbe, 0xef };
    PixelConverter::rgba8888_le.fromPixel(data, pixel_red);
    EXPECT_EQ(data[0], 0xff);
    EXPECT_EQ(data[1], 0x00);
    EXPECT_EQ(data[3], 0x00);
    EXPECT_EQ(data[3], 0x00);
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(data), pixel_red);
 
    PixelConverter::rgba8888_le.fromPixel(data, pixel_green);
    EXPECT_EQ(data[0], 0x00);
    EXPECT_EQ(data[1], 0xff);
    EXPECT_EQ(data[3], 0x00);
    EXPECT_EQ(data[3], 0x00);
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(data), pixel_green);
 
    PixelConverter::rgba8888_le.fromPixel(data, pixel_blue);
    EXPECT_EQ(data[0], 0x00);
    EXPECT_EQ(data[1], 0x00);
    EXPECT_EQ(data[2], 0xff);
    EXPECT_EQ(data[3], 0x00);
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(data), pixel_blue);
}
 
TEST(FBTest, MemToPixelRGBA8888LE)
{
    uint8_t red[] = { 0xff, 0x00, 0x00, 0x00 };
    uint8_t green[] = { 0x00, 0xff, 0x00, 0x00 };
    uint8_t blue[] = { 0x00, 0x00, 0xff, 0x00 };
 
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(red), pixel_red);
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(green), pixel_green);
    EXPECT_EQ(PixelConverter::rgba8888_le.toPixel(blue), pixel_blue);
}
 
TEST(FBTest, MemToPixelRGBA8888BE)
{
    uint8_t red[] = { 0x00, 0x00, 0x00, 0xff };
    uint8_t green[] = { 0x00, 0x00, 0xff, 0x00 };
    uint8_t blue[] = { 0x00, 0xff, 0x00, 0x00 };
 
    EXPECT_EQ(PixelConverter::rgba8888_be.toPixel(red), pixel_red);
    EXPECT_EQ(PixelConverter::rgba8888_be.toPixel(green), pixel_green);
    EXPECT_EQ(PixelConverter::rgba8888_be.toPixel(blue), pixel_blue);
}