Vulkan: Support OES_texture_cube_map_array extension

include/platform/FeaturesVk.h

@@ -155,6 +155,11 @@ struct FeaturesVk : FeatureSetBase
         "VkDevice supports the EGL_ANDROID_native_fence_sync extension", &members,
         "http://anglebug.com/2517"};
 
+    // Whether the VkDevice can support imageCubeArray feature properly.
+    Feature supportsImageCubeArray = {"supports_image_cube_array", FeatureCategory::VulkanFeatures,
+                                      "VkDevice supports the imageCubeArray feature properly",
+                                      &members, "http://anglebug.com/3584"};
+
     // Whether the VkDevice supports the VK_EXT_shader_stencil_export extension, which is used to
     // perform multisampled resolve of stencil buffer.  A multi-step workaround is used instead if
     // this extension is not available.

src/libANGLE/ImageIndex.cpp

@@ -64,6 +64,7 @@ bool IsArrayTarget(TextureTarget target)
     {
         case TextureTarget::_2DArray:
         case TextureTarget::_2DMultisampleArray:
+        case TextureTarget::CubeMapArray:
             return true;
         default:
             return false;

src/libANGLE/renderer/vulkan/RendererVk.cpp

@@ -1309,6 +1309,8 @@ angle::Result RendererVk::initializeDevice(DisplayVk *displayVk, uint32_t queueF
     // Select additional features to be enabled.
     VkPhysicalDeviceFeatures2KHR enabledFeatures = {};
     enabledFeatures.sType                        = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
+    // Used to support cubemap array:
+    enabledFeatures.features.imageCubeArray = getFeatures().supportsImageCubeArray.enabled;
     // Used to support framebuffers with multiple attachments:
     enabledFeatures.features.independentBlend = mPhysicalDeviceFeatures.independentBlend;
     // Used to support robust buffer access:
@@ -1936,6 +1938,14 @@ void RendererVk::initFeatures(DisplayVk *displayVk, const ExtensionNameList &dev
     ANGLE_FEATURE_CONDITION(&mFeatures, enableMultisampledRenderToTexture,
                             !(IsApple() && isSwiftShader) && !(IsWindows() && (isIntel || isAMD)));
 
+    // Feature disabled due to driver bugs:
+    //
+    // - Swiftshader: http://anglebug.com/5142
+    // - Qualcomm: http://anglebug.com/5143
+    ANGLE_FEATURE_CONDITION(
+        &mFeatures, supportsImageCubeArray,
+        mPhysicalDeviceFeatures.imageCubeArray == VK_TRUE && !isSwiftShader && !isQualcomm);
+
     ANGLE_FEATURE_CONDITION(&mFeatures, preferredLargeHeapBlockSize4MB, !isQualcomm);
 
     // Defer glFLush call causes manhattan 3.0 perf regression. Let Qualcomm driver opt out from

src/libANGLE/renderer/vulkan/TextureVk.cpp

@@ -186,6 +186,7 @@ void GetRenderTargetLayerCountAndIndex(vk::ImageHelper *image,
 
         case gl::TextureType::_2DArray:
         case gl::TextureType::_2DMultisampleArray:
+        case gl::TextureType::CubeMapArray:
             *layerIndex = index.hasLayer() ? index.getLayerIndex() : 0;
             *layerCount = index.hasLayer() ? image->getLayerCount() : 1;
             return;
@@ -1454,16 +1455,30 @@ angle::Result TextureVk::copyBufferDataToImage(ContextVk *contextVk,
     ASSERT((offset & (kBufferOffsetMultiple - 1)) == 0);
 
     gl::LevelIndex level = gl::LevelIndex(index.getLevelIndex());
-    GLuint layerCount    = 0;
+    GLuint layerCount    = index.getLayerCount();
     GLuint layerIndex    = 0;
-    GetRenderTargetLayerCountAndIndex(mImage, index, &layerCount, &layerIndex);
 
-    GLuint depth = sourceArea.depth;
-    if (index.getType() == gl::TextureType::_2DArray)
-    {
-        layerCount = depth;
-        depth      = 1;
+    VkBufferImageCopy region           = {};
+    region.bufferOffset                = offset;
+    region.bufferRowLength             = rowLength;
+    region.bufferImageHeight           = imageHeight;
+    region.imageExtent.width           = sourceArea.width;
+    region.imageExtent.height          = sourceArea.height;
+    region.imageExtent.depth           = sourceArea.depth;
+    region.imageOffset.x               = sourceArea.x;
+    region.imageOffset.y               = sourceArea.y;
+    region.imageOffset.z               = sourceArea.z;
+    region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+    region.imageSubresource.layerCount = layerCount;
+    region.imageSubresource.mipLevel   = mImage->toVkLevel(level).get();
+
+    if (gl::IsArrayTextureType(index.getType()))
+    {
+        layerIndex               = sourceArea.z;
+        region.imageOffset.z     = 0;
+        region.imageExtent.depth = 1;
     }
+    region.imageSubresource.baseArrayLayer = layerIndex;
 
     // Make sure the source is initialized and its images are flushed.
     ANGLE_TRY(ensureImageInitialized(contextVk, ImageMipLevels::EnabledLevels));
@@ -1474,21 +1489,6 @@ angle::Result TextureVk::copyBufferDataToImage(ContextVk *contextVk,
 
     vk::CommandBuffer &commandBuffer = contextVk->getOutsideRenderPassCommandBuffer();
 
-    VkBufferImageCopy region               = {};
-    region.bufferOffset                    = offset;
-    region.bufferRowLength                 = rowLength;
-    region.bufferImageHeight               = imageHeight;
-    region.imageExtent.width               = sourceArea.width;
-    region.imageExtent.height              = sourceArea.height;
-    region.imageExtent.depth               = depth;
-    region.imageOffset.x                   = sourceArea.x;
-    region.imageOffset.y                   = sourceArea.y;
-    region.imageOffset.z                   = sourceArea.z;
-    region.imageSubresource.aspectMask     = VK_IMAGE_ASPECT_COLOR_BIT;
-    region.imageSubresource.baseArrayLayer = layerIndex;
-    region.imageSubresource.layerCount     = layerCount;
-    region.imageSubresource.mipLevel       = mImage->toVkLevel(level).get();
-
     commandBuffer.copyBufferToImage(srcBuffer->getBuffer().getHandle(), mImage->getImage(),
                                     mImage->getCurrentLayout(), 1, &region);
 

src/libANGLE/renderer/vulkan/vk_caps_utils.cpp

@@ -207,6 +207,10 @@ void RendererVk::ensureCapsInitialized() const
 
     mNativeExtensions.textureFilteringCHROMIUM = getFeatures().supportsFilteringPrecision.enabled;
 
+    // Only expose texture cubemap array if the physical device supports it.
+    mNativeExtensions.textureCubeMapArrayOES = getFeatures().supportsImageCubeArray.enabled;
+    mNativeExtensions.textureCubeMapArrayEXT = mNativeExtensions.textureCubeMapArrayOES;
+
     mNativeExtensions.shadowSamplersEXT = true;
 
     // From the Vulkan specs:

src/libANGLE/renderer/vulkan/vk_helpers.cpp

@@ -434,6 +434,7 @@ VkImageCreateFlags GetImageCreateFlags(gl::TextureType textureType)
     switch (textureType)
     {
         case gl::TextureType::CubeMap:
+        case gl::TextureType::CubeMapArray:
             return VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
 
         case gl::TextureType::_3D:

src/libANGLE/renderer/vulkan/vk_utils.cpp

@@ -1210,6 +1210,7 @@ VkImageType GetImageType(gl::TextureType textureType)
         case gl::TextureType::_2DMultisample:
         case gl::TextureType::_2DMultisampleArray:
         case gl::TextureType::CubeMap:
+        case gl::TextureType::CubeMapArray:
         case gl::TextureType::External:
             return VK_IMAGE_TYPE_2D;
         case gl::TextureType::_3D:
@@ -1236,6 +1237,8 @@ VkImageViewType GetImageViewType(gl::TextureType textureType)
             return VK_IMAGE_VIEW_TYPE_3D;
         case gl::TextureType::CubeMap:
             return VK_IMAGE_VIEW_TYPE_CUBE;
+        case gl::TextureType::CubeMapArray:
+            return VK_IMAGE_VIEW_TYPE_CUBE_ARRAY;
         default:
             // We will need to implement all the texture types for ES3+.
             UNIMPLEMENTED();
@@ -1297,6 +1300,7 @@ void GetExtentsAndLayerCount(gl::TextureType textureType,
 
         case gl::TextureType::_2DArray:
         case gl::TextureType::_2DMultisampleArray:
+        case gl::TextureType::CubeMapArray:
             extentsOut->depth = 1;
             *layerCountOut    = extents.depth;
             break;