gl_shader_disk_cache: Special-case boolean handling

Booleans don't have a guaranteed size, but we still want to have them
integrate into the disk cache system without needing to actually use a
different type. We can do this by supplying non-template overloads for
the bool type.

Non-template overloads always have precedence during function
resolution, so this is safe to provide.

This gets rid of the need to smatter ternary conditionals, as well as
the need to use u8 types to store the value in.

src/video_core/renderer_opengl/gl_shader_disk_cache.cpp

@@ -303,12 +303,12 @@ std::optional<ShaderDiskCacheDecompiled> ShaderDiskCacheOpenGL::LoadDecompiledEn
     for (u32 i = 0; i < const_buffers_count; ++i) {
         u32 max_offset{};
         u32 index{};
-        u8 is_indirect{};
+        bool is_indirect{};
         if (!LoadObjectFromPrecompiled(max_offset) || !LoadObjectFromPrecompiled(index) ||
             !LoadObjectFromPrecompiled(is_indirect)) {
             return {};
         }
-        entry.entries.const_buffers.emplace_back(max_offset, is_indirect != 0, index);
+        entry.entries.const_buffers.emplace_back(max_offset, is_indirect, index);
     }
 
     u32 samplers_count{};
@@ -320,18 +320,17 @@ std::optional<ShaderDiskCacheDecompiled> ShaderDiskCacheOpenGL::LoadDecompiledEn
         u64 offset{};
         u64 index{};
         u32 type{};
-        u8 is_array{};
-        u8 is_shadow{};
-        u8 is_bindless{};
+        bool is_array{};
+        bool is_shadow{};
+        bool is_bindless{};
         if (!LoadObjectFromPrecompiled(offset) || !LoadObjectFromPrecompiled(index) ||
             !LoadObjectFromPrecompiled(type) || !LoadObjectFromPrecompiled(is_array) ||
             !LoadObjectFromPrecompiled(is_shadow) || !LoadObjectFromPrecompiled(is_bindless)) {
             return {};
         }
-        entry.entries.samplers.emplace_back(static_cast<std::size_t>(offset),
-                                            static_cast<std::size_t>(index),
-                                            static_cast<Tegra::Shader::TextureType>(type),
-                                            is_array != 0, is_shadow != 0, is_bindless != 0);
+        entry.entries.samplers.emplace_back(
+            static_cast<std::size_t>(offset), static_cast<std::size_t>(index),
+            static_cast<Tegra::Shader::TextureType>(type), is_array, is_shadow, is_bindless);
     }
 
     u32 global_memory_count{};
@@ -342,21 +341,20 @@ std::optional<ShaderDiskCacheDecompiled> ShaderDiskCacheOpenGL::LoadDecompiledEn
     for (u32 i = 0; i < global_memory_count; ++i) {
         u32 cbuf_index{};
         u32 cbuf_offset{};
-        u8 is_read{};
-        u8 is_written{};
+        bool is_read{};
+        bool is_written{};
         if (!LoadObjectFromPrecompiled(cbuf_index) || !LoadObjectFromPrecompiled(cbuf_offset) ||
             !LoadObjectFromPrecompiled(is_read) || !LoadObjectFromPrecompiled(is_written)) {
             return {};
         }
-        entry.entries.global_memory_entries.emplace_back(cbuf_index, cbuf_offset, is_read != 0,
-                                                         is_written != 0);
+        entry.entries.global_memory_entries.emplace_back(cbuf_index, cbuf_offset, is_read,
+                                                         is_written);
     }
 
     for (auto& clip_distance : entry.entries.clip_distances) {
-        u8 clip_distance_raw{};
-        if (!LoadObjectFromPrecompiled(clip_distance_raw))
+        if (!LoadObjectFromPrecompiled(clip_distance)) {
             return {};
-        clip_distance = clip_distance_raw != 0;
+        }
     }
 
     u64 shader_length{};
@@ -384,7 +382,7 @@ bool ShaderDiskCacheOpenGL::SaveDecompiledFile(u64 unique_identifier, const std:
     for (const auto& cbuf : entries.const_buffers) {
         if (!SaveObjectToPrecompiled(static_cast<u32>(cbuf.GetMaxOffset())) ||
             !SaveObjectToPrecompiled(static_cast<u32>(cbuf.GetIndex())) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(cbuf.IsIndirect() ? 1 : 0))) {
+            !SaveObjectToPrecompiled(cbuf.IsIndirect())) {
             return false;
         }
     }
@@ -396,9 +394,9 @@ bool ShaderDiskCacheOpenGL::SaveDecompiledFile(u64 unique_identifier, const std:
         if (!SaveObjectToPrecompiled(static_cast<u64>(sampler.GetOffset())) ||
             !SaveObjectToPrecompiled(static_cast<u64>(sampler.GetIndex())) ||
             !SaveObjectToPrecompiled(static_cast<u32>(sampler.GetType())) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(sampler.IsArray() ? 1 : 0)) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(sampler.IsShadow() ? 1 : 0)) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(sampler.IsBindless() ? 1 : 0))) {
+            !SaveObjectToPrecompiled(sampler.IsArray()) ||
+            !SaveObjectToPrecompiled(sampler.IsShadow()) ||
+            !SaveObjectToPrecompiled(sampler.IsBindless())) {
             return false;
         }
     }
@@ -409,14 +407,13 @@ bool ShaderDiskCacheOpenGL::SaveDecompiledFile(u64 unique_identifier, const std:
     for (const auto& gmem : entries.global_memory_entries) {
         if (!SaveObjectToPrecompiled(static_cast<u32>(gmem.GetCbufIndex())) ||
             !SaveObjectToPrecompiled(static_cast<u32>(gmem.GetCbufOffset())) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(gmem.IsRead() ? 1 : 0)) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(gmem.IsWritten() ? 1 : 0))) {
+            !SaveObjectToPrecompiled(gmem.IsRead()) || !SaveObjectToPrecompiled(gmem.IsWritten())) {
             return false;
         }
     }
 
     for (const bool clip_distance : entries.clip_distances) {
-        if (!SaveObjectToPrecompiled(static_cast<u8>(clip_distance ? 1 : 0))) {
+        if (!SaveObjectToPrecompiled(clip_distance)) {
             return false;
         }
     }

src/video_core/renderer_opengl/gl_shader_disk_cache.h

@@ -259,12 +259,28 @@ private:
         return SaveArrayToPrecompiled(&object, 1);
     }
 
+    bool SaveObjectToPrecompiled(bool object) {
+        const auto value = static_cast<u8>(object);
+        return SaveArrayToPrecompiled(&value, 1);
+    }
+
     template <typename T>
     bool LoadObjectFromPrecompiled(T& object) {
         return LoadArrayFromPrecompiled(&object, 1);
     }
 
-    // Copre system
+    bool LoadObjectFromPrecompiled(bool& object) {
+        u8 value;
+        const bool read_ok = LoadArrayFromPrecompiled(&value, 1);
+        if (!read_ok) {
+            return false;
+        }
+
+        object = value != 0;
+        return true;
+    }
+
+    // Core system
     Core::System& system;
     // Stored transferable shaders
     std::map<u64, std::unordered_set<ShaderDiskCacheUsage>> transferable;