layers: Add PVRTC formats to format utils

Update vk_format_utils to classify PVRTC formats correctly.

Change-Id: Ie48883885725a28d62dbafa66151971e0f33a45e

1 files changed, 50 insertions, 72 deletions

diff --git a/layers/vk_format_utils.cpp b/layers/vk_format_utils.cpp
index ce5895e0..374cc602 100644
--- a/layers/vk_format_utils.cpp
+++ b/layers/vk_format_utils.cpp
@@ -222,14 +222,14 @@ const std::map<VkFormat, VULKAN_FORMAT_INFO> vk_format_table = {
     {VK_FORMAT_ASTC_12x10_SRGB_BLOCK,       {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X10_BIT}},
     {VK_FORMAT_ASTC_12x12_UNORM_BLOCK,      {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X12_BIT}},
     {VK_FORMAT_ASTC_12x12_SRGB_BLOCK,       {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X12_BIT}},
-    {VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG, {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X6_BIT }},
-    {VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG, {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X6_BIT}},
-    {VK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMG, {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X8_BIT}},
-    {VK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG, {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X8_BIT}},
-    {VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG,  {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X10_BIT}},
-    {VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG,  {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X10_BIT}},
-    {VK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMG,  {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X10_BIT}},
-    {VK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMG,  {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X10_BIT}},
+    {VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG, {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_PVRTC1_2BPP_BIT}},
+    {VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG, {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_PVRTC1_4BPP_BIT}},
+    {VK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMG, {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_PVRTC2_2BPP_BIT}},
+    {VK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG, {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_PVRTC2_4BPP_BIT}},
+    {VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG,  {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_PVRTC1_2BPP_BIT}},
+    {VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG,  {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_PVRTC1_4BPP_BIT}},
+    {VK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMG,  {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_PVRTC2_2BPP_BIT}},
+    {VK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMG,  {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_PVRTC2_4BPP_BIT}}
 };
 
 // Renable formatting
@@ -258,7 +258,7 @@ VK_LAYER_EXPORT bool FormatIsCompressed_ETC2_EAC(VkFormat format) {
     return found;
 }
 
-// Return true if format is an ETC2 or EAC compressed texture format
+// Return true if format is an ASTC compressed texture format
 VK_LAYER_EXPORT bool FormatIsCompressed_ASTC_LDR(VkFormat format) {
     bool found = false;
 
@@ -328,6 +328,35 @@ VK_LAYER_EXPORT bool FormatIsCompressed_BC(VkFormat format) {
     return found;
 }
 
+// Return true if format is a PVRTC compressed texture format
+VK_LAYER_EXPORT bool FormatIsCompressed_PVRTC(VkFormat format) {
+    bool found = false;
+
+    switch (format) {
+        case VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG:
+        case VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG:
+        case VK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMG:
+        case VK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG:
+        case VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG:
+        case VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG:
+        case VK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMG:
+        case VK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMG:
+            found = true;
+            break;
+        default:
+            break;
+    }
+    return found;
+}
+
+// Return true if format is compressed
+VK_LAYER_EXPORT bool FormatIsCompressed(VkFormat format) {
+    return (FormatIsCompressed_ASTC_LDR(format) || 
+            FormatIsCompressed_BC(format) || 
+            FormatIsCompressed_ETC2_EAC(format) ||
+            FormatIsCompressed_PVRTC(format));
+}
+
 // Return true if format is a depth or stencil format
 VK_LAYER_EXPORT bool FormatIsDepthOrStencil(VkFormat format) {
     return (FormatIsDepthAndStencil(format) || FormatIsDepthOnly(format) || FormatIsStencilOnly(format));
@@ -733,69 +762,6 @@ VK_LAYER_EXPORT bool FormatIsSScaled(VkFormat format) {
     return is_sscaled;
 }
 
-// Return true if format is compressed
-VK_LAYER_EXPORT bool FormatIsCompressed(VkFormat format) {
-    switch (format) {
-        case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
-        case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
-        case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
-        case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:
-        case VK_FORMAT_BC2_UNORM_BLOCK:
-        case VK_FORMAT_BC2_SRGB_BLOCK:
-        case VK_FORMAT_BC3_UNORM_BLOCK:
-        case VK_FORMAT_BC3_SRGB_BLOCK:
-        case VK_FORMAT_BC4_UNORM_BLOCK:
-        case VK_FORMAT_BC4_SNORM_BLOCK:
-        case VK_FORMAT_BC5_UNORM_BLOCK:
-        case VK_FORMAT_BC5_SNORM_BLOCK:
-        case VK_FORMAT_BC6H_UFLOAT_BLOCK:
-        case VK_FORMAT_BC6H_SFLOAT_BLOCK:
-        case VK_FORMAT_BC7_UNORM_BLOCK:
-        case VK_FORMAT_BC7_SRGB_BLOCK:
-        case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
-        case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
-        case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
-        case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
-        case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
-        case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
-        case VK_FORMAT_EAC_R11_UNORM_BLOCK:
-        case VK_FORMAT_EAC_R11_SNORM_BLOCK:
-        case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
-        case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
-        case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
-        case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
-        case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
-            return true;
-        default:
-            return false;
-    }
-}
-
 // Return compressed texel block sizes for block compressed formats
 VK_LAYER_EXPORT VkExtent3D FormatCompressedTexelBlockExtent(VkFormat format) {
     VkExtent3D block_size = {1, 1, 1};
@@ -882,6 +848,18 @@ VK_LAYER_EXPORT VkExtent3D FormatCompressedTexelBlockExtent(VkFormat format) {
         case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
             block_size = {12, 12, 1};
             break;
+        case VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG:
+        case VK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMG:
+        case VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG:
+        case VK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMG:
+            block_size = {8, 4, 1};
+            break;
+        case VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG:
+        case VK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG:
+        case VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG:
+        case VK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMG:
+            block_size = {4, 4, 1};
+            break;
         default:
             break;
     }