FSR: Fix GCC build errors

src/video_core/renderer_vulkan/vk_blit_screen.cpp

@@ -468,20 +468,14 @@ void VKBlitScreen::CreateDynamicResources() {
     CreateGraphicsPipeline();
     fsr.reset();
     if (Settings::values.scaling_filter.GetValue() == Settings::ScalingFilter::Fsr) {
-        const auto& layout = render_window.GetFramebufferLayout();
+        CreateFSR();
-        fsr = std::make_unique<FSR>(
-            device, memory_allocator, image_count,
-            VkExtent2D{.width = layout.screen.GetWidth(), .height = layout.screen.GetHeight()});
     }
 }
 
 void VKBlitScreen::RefreshResources(const Tegra::FramebufferConfig& framebuffer) {
     if (Settings::values.scaling_filter.GetValue() == Settings::ScalingFilter::Fsr) {
         if (!fsr) {
-            const auto& layout = render_window.GetFramebufferLayout();
+            CreateFSR();
-            fsr = std::make_unique<FSR>(
-                device, memory_allocator, image_count,
-                VkExtent2D{.width = layout.screen.GetWidth(), .height = layout.screen.GetHeight()});
         }
     } else {
         fsr.reset();
@@ -1443,6 +1437,15 @@ void VKBlitScreen::SetVertexData(BufferData& data, const Tegra::FramebufferConfi
     data.vertices[3] = ScreenRectVertex(x + w, y + h, texcoords.bottom * scale_u, right * scale_v);
 }
 
+void VKBlitScreen::CreateFSR() {
+    const auto& layout = render_window.GetFramebufferLayout();
+    const VkExtent2D fsr_size{
+        .width = layout.screen.GetWidth(),
+        .height = layout.screen.GetHeight(),
+    };
+    fsr = std::make_unique<FSR>(device, memory_allocator, image_count, fsr_size);
+}
+
 u64 VKBlitScreen::CalculateBufferSize(const Tegra::FramebufferConfig& framebuffer) const {
     return sizeof(BufferData) + GetSizeInBytes(framebuffer) * image_count;
 }

src/video_core/renderer_vulkan/vk_blit_screen.h

@@ -99,6 +99,8 @@ private:
     void SetVertexData(BufferData& data, const Tegra::FramebufferConfig& framebuffer,
                        const Layout::FramebufferLayout layout) const;
 
+    void CreateFSR();
+
     u64 CalculateBufferSize(const Tegra::FramebufferConfig& framebuffer) const;
     u64 GetRawImageOffset(const Tegra::FramebufferConfig& framebuffer,
                           std::size_t image_index) const;

src/video_core/renderer_vulkan/vk_fsr.cpp

@@ -2,8 +2,11 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <cmath>
+#include "common/bit_cast.h"
 #include "common/common_types.h"
 #include "common/div_ceil.h"
+
 #include "video_core/host_shaders/vulkan_fidelityfx_fsr_easu_fp16_comp_spv.h"
 #include "video_core/host_shaders/vulkan_fidelityfx_fsr_easu_fp32_comp_spv.h"
 #include "video_core/host_shaders/vulkan_fidelityfx_fsr_rcas_fp16_comp_spv.h"
@@ -13,9 +16,11 @@
 #include "video_core/renderer_vulkan/vk_shader_util.h"
 #include "video_core/vulkan_common/vulkan_device.h"
 
+namespace Vulkan {
+namespace {
 // Reimplementations of the constant generating functions in ffx_fsr1.h
 // GCC generated a lot of warnings when using the official header.
-static u32 AU1_AH1_AF1(f32 f) {
+u32 AU1_AH1_AF1(f32 f) {
     static constexpr u32 base[512]{
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
@@ -102,59 +107,56 @@ static u32 AU1_AH1_AF1(f32 f) {
         0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
         0x18, 0x18,
     };
-    auto u = std::bit_cast<u32>(f);
+    const u32 u = Common::BitCast<u32>(f);
-    u32 i = u >> 23;
+    const u32 i = u >> 23;
     return base[i] + ((u & 0x7fffff) >> shift[i]);
 }
 
-static u32 AU1_AH2_AF2(f32 a[2]) {
+u32 AU1_AH2_AF2(f32 a[2]) {
     return AU1_AH1_AF1(a[0]) + (AU1_AH1_AF1(a[1]) << 16);
 }
 
-static void FsrEasuCon(u32 con0[4], u32 con1[4], u32 con2[4], u32 con3[4],
+void FsrEasuCon(u32 con0[4], u32 con1[4], u32 con2[4], u32 con3[4], f32 inputViewportInPixelsX,
-                       f32 inputViewportInPixelsX, f32 inputViewportInPixelsY,
+                f32 inputViewportInPixelsY, f32 inputSizeInPixelsX, f32 inputSizeInPixelsY,
-                       f32 inputSizeInPixelsX, f32 inputSizeInPixelsY, f32 outputSizeInPixelsX,
+                f32 outputSizeInPixelsX, f32 outputSizeInPixelsY) {
-                       f32 outputSizeInPixelsY) {
+    con0[0] = Common::BitCast<u32>(inputViewportInPixelsX / outputSizeInPixelsX);
-    con0[0] = std::bit_cast<u32>(inputViewportInPixelsX / outputSizeInPixelsX);
+    con0[1] = Common::BitCast<u32>(inputViewportInPixelsY / outputSizeInPixelsY);
-    con0[1] = std::bit_cast<u32>(inputViewportInPixelsY / outputSizeInPixelsY);
+    con0[2] = Common::BitCast<u32>(0.5f * inputViewportInPixelsX / outputSizeInPixelsX - 0.5f);
-    con0[2] = std::bit_cast<u32>(0.5f * inputViewportInPixelsX / outputSizeInPixelsX - 0.5f);
+    con0[3] = Common::BitCast<u32>(0.5f * inputViewportInPixelsY / outputSizeInPixelsY - 0.5f);
-    con0[3] = std::bit_cast<u32>(0.5f * inputViewportInPixelsY / outputSizeInPixelsY - 0.5f);
+    con1[0] = Common::BitCast<u32>(1.0f / inputSizeInPixelsX);
-    con1[0] = std::bit_cast<u32>(1.0f / inputSizeInPixelsX);
+    con1[1] = Common::BitCast<u32>(1.0f / inputSizeInPixelsY);
-    con1[1] = std::bit_cast<u32>(1.0f / inputSizeInPixelsY);
+    con1[2] = Common::BitCast<u32>(1.0f / inputSizeInPixelsX);
-    con1[2] = std::bit_cast<u32>(1.0f / inputSizeInPixelsX);
+    con1[3] = Common::BitCast<u32>(-1.0f / inputSizeInPixelsY);
-    con1[3] = std::bit_cast<u32>(-1.0f / inputSizeInPixelsY);
+    con2[0] = Common::BitCast<u32>(-1.0f / inputSizeInPixelsX);
-    con2[0] = std::bit_cast<u32>(-1.0f / inputSizeInPixelsX);
+    con2[1] = Common::BitCast<u32>(2.0f / inputSizeInPixelsY);
-    con2[1] = std::bit_cast<u32>(2.0f / inputSizeInPixelsY);
+    con2[2] = Common::BitCast<u32>(1.0f / inputSizeInPixelsX);
-    con2[2] = std::bit_cast<u32>(1.0f / inputSizeInPixelsX);
+    con2[3] = Common::BitCast<u32>(2.0f / inputSizeInPixelsY);
-    con2[3] = std::bit_cast<u32>(2.0f / inputSizeInPixelsY);
+    con3[0] = Common::BitCast<u32>(0.0f / inputSizeInPixelsX);
-    con3[0] = std::bit_cast<u32>(0.0f / inputSizeInPixelsX);
+    con3[1] = Common::BitCast<u32>(4.0f / inputSizeInPixelsY);
-    con3[1] = std::bit_cast<u32>(4.0f / inputSizeInPixelsY);
     con3[2] = con3[3] = 0;
 }
 
-static void FsrEasuConOffset(u32 con0[4], u32 con1[4], u32 con2[4], u32 con3[4],
+void FsrEasuConOffset(u32 con0[4], u32 con1[4], u32 con2[4], u32 con3[4],
-                             f32 inputViewportInPixelsX, f32 inputViewportInPixelsY,
+                      f32 inputViewportInPixelsX, f32 inputViewportInPixelsY,
-                             f32 inputSizeInPixelsX, f32 inputSizeInPixelsY,
+                      f32 inputSizeInPixelsX, f32 inputSizeInPixelsY, f32 outputSizeInPixelsX,
-                             f32 outputSizeInPixelsX, f32 outputSizeInPixelsY,
+                      f32 outputSizeInPixelsY, f32 inputOffsetInPixelsX, f32 inputOffsetInPixelsY) {
-                             f32 inputOffsetInPixelsX, f32 inputOffsetInPixelsY) {
     FsrEasuCon(con0, con1, con2, con3, inputViewportInPixelsX, inputViewportInPixelsY,
                inputSizeInPixelsX, inputSizeInPixelsY, outputSizeInPixelsX, outputSizeInPixelsY);
-    con0[2] = std::bit_cast<u32>(0.5f * inputViewportInPixelsX / outputSizeInPixelsX - 0.5f +
+    con0[2] = Common::BitCast<u32>(0.5f * inputViewportInPixelsX / outputSizeInPixelsX - 0.5f +
-                                 inputOffsetInPixelsX);
+                                   inputOffsetInPixelsX);
-    con0[3] = std::bit_cast<u32>(0.5f * inputViewportInPixelsY / outputSizeInPixelsY - 0.5f +
+    con0[3] = Common::BitCast<u32>(0.5f * inputViewportInPixelsY / outputSizeInPixelsY - 0.5f +
-                                 inputOffsetInPixelsY);
+                                   inputOffsetInPixelsY);
 }
 
-static void FsrRcasCon(u32* con, f32 sharpness) {
+void FsrRcasCon(u32* con, f32 sharpness) {
     sharpness = std::exp2f(-sharpness);
     f32 hSharp[2]{sharpness, sharpness};
-    con[0] = std::bit_cast<u32>(sharpness);
+    con[0] = Common::BitCast<u32>(sharpness);
     con[1] = AU1_AH2_AF2(hSharp);
     con[2] = 0;
     con[3] = 0;
 }
-
+} // Anonymous namespace
-namespace Vulkan {
 
 FSR::FSR(const Device& device_, MemoryAllocator& memory_allocator_, size_t image_count_,
          VkExtent2D output_size_)