1 files changed, 220 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/Config_unittest.cpp b/gfx/angle/src/libANGLE/Config_unittest.cpp
new file mode 100755
index 000000000..4c49df600
--- /dev/null
+++ b/gfx/angle/src/libANGLE/Config_unittest.cpp
@@ -0,0 +1,220 @@
+//
+// 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 "libANGLE/AttributeMap.h"
+#include "libANGLE/Config.h"
+
+// Create a generic, valid EGL config that can be modified to test sorting and
+// filtering routines
+static egl::Config GenerateGenericConfig()
+{
+    egl::Config config;
+
+    config.bufferSize = 24;
+    config.redSize = 8;
+    config.greenSize = 8;
+    config.blueSize = 8;
+    config.luminanceSize = 0;
+    config.alphaSize = 8;
+    config.alphaMaskSize = 0;
+    config.bindToTextureRGB = EGL_TRUE;
+    config.bindToTextureRGBA = EGL_TRUE;
+    config.colorBufferType = EGL_RGB_BUFFER;
+    config.configCaveat = EGL_NONE;
+    config.configID = 0;
+    config.conformant = EGL_OPENGL_ES2_BIT;
+    config.depthSize = 24;
+    config.level = 0;
+    config.matchNativePixmap = EGL_NONE;
+    config.maxPBufferWidth = 1024;
+    config.maxPBufferHeight = 1024;
+    config.maxPBufferPixels = config.maxPBufferWidth * config.maxPBufferWidth;
+    config.maxSwapInterval = 0;
+    config.minSwapInterval = 4;
+    config.nativeRenderable = EGL_OPENGL_ES2_BIT;
+    config.nativeVisualID = 0;
+    config.nativeVisualType = 0;
+    config.renderableType = EGL_FALSE;
+    config.sampleBuffers = 0;
+    config.samples = 0;
+    config.stencilSize = 8;
+    config.surfaceType = EGL_PBUFFER_BIT | EGL_WINDOW_BIT | EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
+    config.transparentType = EGL_NONE;
+    config.transparentRedValue = 0;
+    config.transparentGreenValue = 0;
+    config.transparentBlueValue = 0;
+
+    return config;
+}
+
+static std::vector<egl::Config> GenerateUniqueConfigs(size_t count)
+{
+    std::vector<egl::Config> configs;
+
+    for (size_t i = 0; i < count; i++)
+    {
+        egl::Config config = GenerateGenericConfig();
+        config.samples = static_cast<EGLint>(i);
+        configs.push_back(config);
+    }
+
+    return configs;
+}
+
+// Add unique configs to a ConfigSet and expect that the size of the
+// set is equal to the number of configs added.
+TEST(ConfigSetTest, Size)
+{
+    egl::ConfigSet set;
+
+    std::vector<egl::Config> uniqueConfigs = GenerateUniqueConfigs(16);
+    for (size_t i = 0; i < uniqueConfigs.size(); i++)
+    {
+        set.add(uniqueConfigs[i]);
+        EXPECT_EQ(set.size(), i + 1);
+    }
+}
+
+// [EGL 1.5] section 3.4:
+// EGL_CONFIG_ID is a unique integer identifying different EGLConfigs. Configuration IDs
+// must be small positive integers starting at 1 and ID assignment should be compact;
+// that is, if there are N EGLConfigs defined by the EGL implementation, their
+// configuration IDs should be in the range [1, N].
+TEST(ConfigSetTest, IDs)
+{
+    egl::ConfigSet set;
+
+    std::set<EGLint> ids;
+
+    std::vector<egl::Config> uniqueConfigs = GenerateUniqueConfigs(16);
+    for (size_t i = 0; i < uniqueConfigs.size(); i++)
+    {
+        EGLint id = set.add(uniqueConfigs[i]);
+
+        // Check that the config that was inserted has the ID that was returned
+        // by ConfigSet::add
+        EXPECT_EQ(id, set.get(id).configID);
+
+        ids.insert(id);
+    }
+
+    // Verify configCount unique IDs
+    EXPECT_EQ(ids.size(), set.size());
+
+    // Check that there are no gaps and the IDs are in the range [1, N].
+    EXPECT_EQ(*std::min_element(ids.begin(), ids.end()), 1);
+    EXPECT_EQ(*std::max_element(ids.begin(), ids.end()), static_cast<EGLint>(set.size()));
+}
+
+TEST(ConfigSetTest, Filtering_BitSizes)
+{
+    egl::ConfigSet set;
+
+    struct VariableConfigBitSize
+    {
+        EGLint Name;
+        EGLint(egl::Config::*ConfigMember);
+    };
+
+    VariableConfigBitSize testMembers[] = 
+    {
+        { EGL_RED_SIZE,     &egl::Config::redSize     },
+        { EGL_GREEN_SIZE,   &egl::Config::greenSize   },
+        { EGL_BLUE_SIZE,    &egl::Config::blueSize    },
+        { EGL_ALPHA_SIZE,   &egl::Config::alphaSize   },
+        { EGL_DEPTH_SIZE,   &egl::Config::depthSize   },
+        { EGL_STENCIL_SIZE, &egl::Config::stencilSize },
+    };
+
+    // Generate configsPerType configs with varying bit sizes of each type
+    size_t configsPerType = 4;
+    for (size_t i = 0; i < ArraySize(testMembers); i++)
+    {
+        for (size_t j = 0; j < configsPerType; j++)
+        {
+            egl::Config config = GenerateGenericConfig();
+
+            // Set all the other tested members of this config to 0
+            for (size_t k = 0; k < ArraySize(testMembers); k++)
+            {
+                config.*(testMembers[k].ConfigMember) = 0;
+            }
+
+            // Set the tested member of this config to i so it ranges from
+            // [1, configsPerType]
+            config.*(testMembers[i].ConfigMember) = static_cast<EGLint>(j) + 1;
+
+            set.add(config);
+        }
+    }
+
+    // for each tested member, filter by it's type and verify that the correct number
+    // of results are returned
+    for (size_t i = 0; i < ArraySize(testMembers); i++)
+    {
+        // Start with a filter of 1 to not grab the other members
+        for (EGLint j = 0; j < static_cast<EGLint>(configsPerType); j++)
+        {
+            egl::AttributeMap filter;
+            filter.insert(testMembers[i].Name, j + 1);
+
+            std::vector<const egl::Config *> filteredConfigs = set.filter(filter);
+
+            EXPECT_EQ(filteredConfigs.size(), configsPerType - j);
+        }
+    }
+}
+
+// Verify the sorting, [EGL 1.5] section 3.4.1.2 pg 30:
+// [configs are sorted] by larger total number of color bits (for an RGB
+// color buffer this is the sum of EGL_RED_SIZE, EGL_GREEN_SIZE, EGL_BLUE_SIZE,
+// and EGL_ALPHA_SIZE; for a luminance color buffer, the sum of EGL_LUMINANCE_SIZE
+// and EGL_ALPHA_SIZE).If the requested number of bits in attrib list for a
+// particular color component is 0 or EGL_DONT_CARE, then the number of bits
+// for that component is not considered.
+TEST(ConfigSetTest, Sorting_BitSizes)
+{
+    egl::ConfigSet set;
+    size_t testConfigCount = 64;
+    for (size_t i = 0; i < testConfigCount; i++)
+    {
+        egl::Config config = GenerateGenericConfig();
+
+        // Give random-ish bit sizes to the config
+        config.redSize =   (i *  2) %  3;
+        config.greenSize = (i +  5) %  7;
+        config.blueSize =  (i +  7) % 11;
+        config.alphaSize = (i + 13) % 17;
+
+        set.add(config);
+    }
+
+    egl::AttributeMap greaterThan1BitFilter;
+    greaterThan1BitFilter.insert(EGL_RED_SIZE, 1);
+    greaterThan1BitFilter.insert(EGL_GREEN_SIZE, 1);
+    greaterThan1BitFilter.insert(EGL_BLUE_SIZE, 1);
+    greaterThan1BitFilter.insert(EGL_ALPHA_SIZE, 1);
+
+    std::vector<const egl::Config *> filteredConfigs = set.filter(greaterThan1BitFilter);
+    for (size_t i = 1; i < filteredConfigs.size(); i++)
+    {
+        const egl::Config &prevConfig = *filteredConfigs[i - 1];
+        size_t prevBitCount = prevConfig.redSize +
+                              prevConfig.greenSize +
+                              prevConfig.blueSize +
+                              prevConfig.alphaSize;
+
+        const egl::Config &curConfig = *filteredConfigs[i];
+        size_t curBitCount = curConfig.redSize +
+                             curConfig.greenSize +
+                             curConfig.blueSize +
+                             curConfig.alphaSize;
+
+        EXPECT_GE(prevBitCount, curBitCount);
+    }
+}