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Advertise the VK_EXT_post_depth_coverage extension.

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iOS only, and only on A11/A12 devices (GPU Family 4/5).
This commit is contained in:
Chip Davis 2019-07-17 10:52:16 -05:00
parent b2ae0f011c
commit 3f3810afbd
5 changed files with 14 additions and 0 deletions
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1
Docs/MoltenVK_Runtime_UserGuide.md
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@ -255,6 +255,7 @@ In addition to the core *Vulkan* API, **MoltenVK** also supports the following
- `VK_EXT_host_query_reset`
- `VK_EXT_memory_budget` *(requires Metal 2.0)*
- `VK_EXT_metal_surface`
- `VK_EXT_post_depth_coverage` *(iOS, requires GPU family 4)*
- `VK_EXT_scalar_block_layout`
- `VK_EXT_shader_stencil_export` *(requires Mac GPU family 2 or iOS GPU family 5)*
- `VK_EXT_shader_viewport_index_layer`

1
MoltenVK/MoltenVK/API/vk_mvk_moltenvk.h
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@ -539,6 +539,7 @@ typedef struct {
VkBool32 multisampleLayeredRendering; /**< If true, layered rendering to multiple multi-sampled cube or texture array layers is supported. */
VkBool32 stencilFeedback; /**< If true, fragment shaders that write to [[stencil]] outputs are supported. */
VkBool32 textureBuffers; /**< If true, textures of type MTLTextureTypeBuffer are supported. */
VkBool32 postDepthCoverage; /**< If true, coverage masks in fragment shaders post-depth-test are supported. */
} MVKPhysicalDeviceMetalFeatures;
/**

7
MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
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@ -791,6 +791,10 @@ void MVKPhysicalDevice::initMetalFeatures() {
_metalFeatures.arrayOfSamplers = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily4_v1] ) {
_metalFeatures.postDepthCoverage = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily5_v1] ) {
_metalFeatures.layeredRendering = true;
_metalFeatures.stencilFeedback = true;
@ -1616,6 +1620,9 @@ void MVKPhysicalDevice::initMemoryProperties() {
}
void MVKPhysicalDevice::initExtensions() {
if (!_metalFeatures.postDepthCoverage) {
_supportedExtensions.vk_EXT_post_depth_coverage.enabled = false;
}
if (!_metalFeatures.stencilFeedback) {
_supportedExtensions.vk_EXT_shader_stencil_export.enabled = false;
}

1
MoltenVK/MoltenVK/Layers/MVKExtensions.def
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@ -59,6 +59,7 @@ MVK_EXTENSION(EXT_debug_utils, EXT_DEBUG_UTILS)
MVK_EXTENSION(EXT_host_query_reset, EXT_HOST_QUERY_RESET)
MVK_EXTENSION(EXT_memory_budget, EXT_MEMORY_BUDGET)
MVK_EXTENSION(EXT_metal_surface, EXT_METAL_SURFACE)
MVK_EXTENSION(EXT_post_depth_coverage, EXT_POST_DEPTH_COVERAGE)
MVK_EXTENSION(EXT_scalar_block_layout, EXT_SCALAR_BLOCK_LAYOUT)
MVK_EXTENSION(EXT_shader_stencil_export, EXT_SHADER_STENCIL_EXPORT)
MVK_EXTENSION(EXT_shader_viewport_index_layer, EXT_SHADER_VIEWPORT_INDEX_LAYER)

4
MoltenVK/MoltenVK/Layers/MVKExtensions.mm
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@ -50,6 +50,7 @@ static bool mvkIsSupportedOnPlatform(VkExtensionProperties* pProperties) {
if (pProperties == &kVkExtProps_EXT_MEMORY_BUDGET) {
return mvkOSVersion() >= 10.13;
}
if (pProperties == &kVkExtProps_EXT_POST_DEPTH_COVERAGE) { return false; }
if (pProperties == &kVkExtProps_EXT_SHADER_STENCIL_EXPORT) {
return mvkOSVersion() >= 10.14;
}
@ -65,6 +66,9 @@ static bool mvkIsSupportedOnPlatform(VkExtensionProperties* pProperties) {
if (pProperties == &kVkExtProps_EXT_MEMORY_BUDGET) {
return mvkOSVersion() >= 11.0;
}
if (pProperties == &kVkExtProps_EXT_POST_DEPTH_COVERAGE) {
return mvkOSVersion() >= 11.0;
}
if (pProperties == &kVkExtProps_EXT_SHADER_STENCIL_EXPORT) {
return mvkOSVersion() >= 12.0;
}