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//
// Copyright (c) 2014 The ANGLE Project 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 "gmock/gmock.h"
#include "gtest/gtest.h"
#include "common/utilities.h"
#include "libANGLE/ImageIndex.h"
using namespace gl;
namespace
{
static const GLint minMip = 0;
static const GLint maxMip = 4;
static const GLint minLayer = 1;
static const GLint maxLayer = 3;
TEST(ImageIndexTest, Iterator2D)
{
ImageIndexIterator iter = ImageIndexIterator::Make2D(minMip, maxMip);
ASSERT_GE(0, minMip);
for (GLint mip = minMip; mip < maxMip; mip++)
{
EXPECT_TRUE(iter.hasNext());
ImageIndex current = iter.current();
ImageIndex nextIndex = iter.next();
EXPECT_EQ(static_cast<GLenum>(GL_TEXTURE_2D), nextIndex.type);
EXPECT_EQ(mip, nextIndex.mipIndex);
EXPECT_FALSE(nextIndex.hasLayer());
// Also test current
EXPECT_EQ(current.type, nextIndex.type);
EXPECT_EQ(current.mipIndex, nextIndex.mipIndex);
EXPECT_EQ(current.layerIndex, nextIndex.layerIndex);
}
EXPECT_FALSE(iter.hasNext());
}
TEST(ImageIndexTest, IteratorCube)
{
ImageIndexIterator iter = ImageIndexIterator::MakeCube(0, 4);
ASSERT_GE(0, minMip);
for (GLint mip = minMip; mip < maxMip; mip++)
{
for (GLint layer = 0; layer < 6; layer++)
{
EXPECT_TRUE(iter.hasNext());
ImageIndex nextIndex = iter.next();
GLenum cubeTarget = LayerIndexToCubeMapTextureTarget(layer);
EXPECT_EQ(cubeTarget, nextIndex.type);
EXPECT_EQ(mip, nextIndex.mipIndex);
EXPECT_EQ(layer, nextIndex.layerIndex);
EXPECT_TRUE(nextIndex.hasLayer());
}
}
EXPECT_FALSE(iter.hasNext());
}
TEST(ImageIndexTest, Iterator3D)
{
ImageIndexIterator iter = ImageIndexIterator::Make3D(minMip, maxMip, minLayer, maxLayer);
ASSERT_GE(0, minMip);
for (GLint mip = minMip; mip < maxMip; mip++)
{
for (GLint layer = minLayer; layer < maxLayer; layer++)
{
EXPECT_TRUE(iter.hasNext());
ImageIndex nextIndex = iter.next();
EXPECT_EQ(static_cast<GLenum>(GL_TEXTURE_3D), nextIndex.type);
EXPECT_EQ(mip, nextIndex.mipIndex);
EXPECT_EQ(layer, nextIndex.layerIndex);
EXPECT_TRUE(nextIndex.hasLayer());
}
}
EXPECT_FALSE(iter.hasNext());
}
TEST(ImageIndexTest, Iterator2DArray)
{
GLsizei layerCounts[] = { 1, 3, 5, 2 };
ImageIndexIterator iter = ImageIndexIterator::Make2DArray(minMip, maxMip, layerCounts);
ASSERT_GE(0, minMip);
ASSERT_EQ(ArraySize(layerCounts), static_cast<size_t>(maxMip));
for (GLint mip = minMip; mip < maxMip; mip++)
{
for (GLint layer = 0; layer < layerCounts[mip]; layer++)
{
EXPECT_TRUE(iter.hasNext());
ImageIndex nextIndex = iter.next();
EXPECT_EQ(static_cast<GLenum>(GL_TEXTURE_2D_ARRAY), nextIndex.type);
EXPECT_EQ(mip, nextIndex.mipIndex);
EXPECT_EQ(layer, nextIndex.layerIndex);
EXPECT_TRUE(nextIndex.hasLayer());
}
}
EXPECT_FALSE(iter.hasNext());
}
} // namespace
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