Add support for hybrid XFB

8 files changed, 73 insertions, 198 deletions

diff --git a/Source/Core/VideoBackends/Software/EfbInterface.cpp b/Source/Core/VideoBackends/Software/EfbInterface.cpp
index 9f6af90c0d..411839c852 100644
--- a/Source/Core/VideoBackends/Software/EfbInterface.cpp
+++ b/Source/Core/VideoBackends/Software/EfbInterface.cpp
@@ -520,15 +520,6 @@ void CopyToXFB(yuv422_packed* xfb_in_ram, u32 fbWidth, u32 fbHeight, const EFBRe
   // Scanline buffer, leave room for borders
   yuv444 scanline[EFB_WIDTH + 2];
 
-  // our internal yuv444 type is not normalized, so black is {0, 0, 0} instead of {16, 128, 128}
-  yuv444 black;
-  black.Y = 0;
-  black.U = 0;
-  black.V = 0;
-
-  scanline[0] = black;          // black border at start
-  scanline[right + 1] = black;  // black border at end
-
   for (u16 y = sourceRc.top; y < sourceRc.bottom; y++)
   {
     // Get a scanline of YUV pixels in 4:4:4 format
@@ -538,6 +529,10 @@ void CopyToXFB(yuv422_packed* xfb_in_ram, u32 fbWidth, u32 fbHeight, const EFBRe
       scanline[i] = GetColorYUV(x, y);
     }
 
+    // Flipper clamps the border colors
+    scanline[0] = scanline[1];
+    scanline[right + 1] = scanline[right];
+
     // And Downsample them to 4:2:2
     for (int i = 1, x = left; x < right; i += 2, x += 2)
     {
@@ -562,26 +557,7 @@ void CopyToXFB(yuv422_packed* xfb_in_ram, u32 fbWidth, u32 fbHeight, const EFBRe
 // main memory or doing a yuyv conversion
 void BypassXFB(u8* texture, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc, float Gamma)
 {
-  if (fbWidth * fbHeight > MAX_XFB_WIDTH * MAX_XFB_HEIGHT)
-  {
-    ERROR_LOG(VIDEO, "Framebuffer is too large: %ix%i", fbWidth, fbHeight);
-    return;
-  }
-
-  size_t textureAddress = 0;
-  const int left = sourceRc.left;
-  const int right = sourceRc.right;
-
-  for (u16 y = sourceRc.top; y < sourceRc.bottom; y++)
-  {
-    for (u16 x = left; x < right; x++)
-    {
-      const u32 color = Common::swap32(GetColor(x, y) | 0xFF);
-
-      std::memcpy(&texture[textureAddress], &color, sizeof(u32));
-      textureAddress += sizeof(u32);
-    }
-  }
+  // TODO: Upload directly to texture cache.
 }
 
 bool ZCompare(u16 x, u16 y, u32 z)
diff --git a/Source/Core/VideoBackends/Software/SWOGLWindow.cpp b/Source/Core/VideoBackends/Software/SWOGLWindow.cpp
index 9d42ff5790..52b2fb02cd 100644
--- a/Source/Core/VideoBackends/Software/SWOGLWindow.cpp
+++ b/Source/Core/VideoBackends/Software/SWOGLWindow.cpp
@@ -9,6 +9,7 @@
 #include "Common/Logging/Log.h"
 
 #include "VideoBackends/Software/SWOGLWindow.h"
+#include "VideoCommon/AbstractTexture.h"
 
 std::unique_ptr<SWOGLWindow> SWOGLWindow::s_instance;
 
@@ -53,9 +54,9 @@ void SWOGLWindow::Prepare()
 
   std::string frag_shader = "in vec2 TexCoord;\n"
                             "out vec4 ColorOut;\n"
-                            "uniform sampler2D Texture;\n"
+                            "uniform sampler2DArray samp;\n"
                             "void main() {\n"
-                            "	ColorOut = texture(Texture, TexCoord);\n"
+                            "	ColorOut = texture(samp, vec3(TexCoord, 0.0));\n"
                             "}\n";
 
   std::string vertex_shader = "out vec2 TexCoord;\n"
@@ -74,12 +75,9 @@ void SWOGLWindow::Prepare()
 
   glUseProgram(m_image_program);
 
-  glUniform1i(glGetUniformLocation(m_image_program, "Texture"), 0);
+  glUniform1i(glGetUniformLocation(m_image_program, "samp"), 0);
 
-  glGenTextures(1, &m_image_texture);
-  glBindTexture(GL_TEXTURE_2D, m_image_texture);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+  glPixelStorei(GL_UNPACK_ALIGNMENT, 4);  // 4-byte pixel alignment
 
   glGenVertexArrays(1, &m_image_vao);
 }
@@ -89,23 +87,19 @@ void SWOGLWindow::PrintText(const std::string& text, int x, int y, u32 color)
   m_text.push_back({text, x, y, color});
 }
 
-void SWOGLWindow::ShowImage(const u8* data, int stride, int width, int height, float aspect)
+void SWOGLWindow::ShowImage(AbstractTexture* image, float aspect)
 {
-  GLInterface->MakeCurrent();
-  GLInterface->Update();
-  Prepare();
+  GLInterface->Update();  // just updates the render window position and the backbuffer size
 
   GLsizei glWidth = (GLsizei)GLInterface->GetBackBufferWidth();
   GLsizei glHeight = (GLsizei)GLInterface->GetBackBufferHeight();
 
   glViewport(0, 0, glWidth, glHeight);
 
-  glBindTexture(GL_TEXTURE_2D, m_image_texture);
+  image->Bind(0);
 
-  glPixelStorei(GL_UNPACK_ALIGNMENT, 4);  // 4-byte pixel alignment
-  glPixelStorei(GL_UNPACK_ROW_LENGTH, stride / 4);
-  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0, GL_RGBA,
-               GL_UNSIGNED_BYTE, data);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 
   glUseProgram(m_image_program);
 
@@ -119,7 +113,6 @@ void SWOGLWindow::ShowImage(const u8* data, int stride, int width, int height, f
   m_text.clear();
 
   GLInterface->Swap();
-  GLInterface->ClearCurrent();
 }
 
 int SWOGLWindow::PeekMessages()
diff --git a/Source/Core/VideoBackends/Software/SWOGLWindow.h b/Source/Core/VideoBackends/Software/SWOGLWindow.h
index 110642b3f8..3b5d623846 100644
--- a/Source/Core/VideoBackends/Software/SWOGLWindow.h
+++ b/Source/Core/VideoBackends/Software/SWOGLWindow.h
@@ -10,17 +10,20 @@
 
 #include "Common/CommonTypes.h"
 
+class AbstractTexture;
+
 class SWOGLWindow
 {
 public:
   static void Init(void* window_handle);
   static void Shutdown();
+  void Prepare();
 
   // Will be printed on the *next* image
   void PrintText(const std::string& text, int x, int y, u32 color);
 
   // Image to show, will be swapped immediately
-  void ShowImage(const u8* data, int stride, int width, int height, float aspect);
+  void ShowImage(AbstractTexture* image, float aspect);
 
   int PeekMessages();
 
@@ -28,7 +31,6 @@ public:
 
 private:
   SWOGLWindow() {}
-  void Prepare();
 
   struct TextData
   {
@@ -40,5 +42,5 @@ private:
 
   bool m_init{false};
 
-  u32 m_image_program, m_image_texture, m_image_vao;
+  u32 m_image_program, m_image_vao;
 };
diff --git a/Source/Core/VideoBackends/Software/SWRenderer.cpp b/Source/Core/VideoBackends/Software/SWRenderer.cpp
index dc378cbede..9074a429b9 100644
--- a/Source/Core/VideoBackends/Software/SWRenderer.cpp
+++ b/Source/Core/VideoBackends/Software/SWRenderer.cpp
@@ -23,26 +23,13 @@
 #include "VideoCommon/VideoBackendBase.h"
 #include "VideoCommon/VideoConfig.h"
 
-static u8* s_xfbColorTexture[2];
-static int s_currentColorTexture = 0;
-
 SWRenderer::SWRenderer()
     : ::Renderer(static_cast<int>(MAX_XFB_WIDTH), static_cast<int>(MAX_XFB_HEIGHT))
 {
 }
 
-SWRenderer::~SWRenderer()
-{
-  delete[] s_xfbColorTexture[0];
-  delete[] s_xfbColorTexture[1];
-}
-
 void SWRenderer::Init()
 {
-  s_xfbColorTexture[0] = new u8[MAX_XFB_WIDTH * MAX_XFB_HEIGHT * 4];
-  s_xfbColorTexture[1] = new u8[MAX_XFB_WIDTH * MAX_XFB_HEIGHT * 4];
-
-  s_currentColorTexture = 0;
 }
 
 void SWRenderer::Shutdown()
@@ -55,80 +42,16 @@ void SWRenderer::RenderText(const std::string& pstr, int left, int top, u32 colo
   SWOGLWindow::s_instance->PrintText(pstr, left, top, color);
 }
 
-u8* SWRenderer::GetNextColorTexture()
-{
-  return s_xfbColorTexture[!s_currentColorTexture];
-}
-
-u8* SWRenderer::GetCurrentColorTexture()
-{
-  return s_xfbColorTexture[s_currentColorTexture];
-}
-
-void SWRenderer::SwapColorTexture()
-{
-  s_currentColorTexture = !s_currentColorTexture;
-}
-
-void SWRenderer::UpdateColorTexture(EfbInterface::yuv422_packed* xfb, u32 fbWidth, u32 fbHeight)
-{
-  if (fbWidth * fbHeight > MAX_XFB_WIDTH * MAX_XFB_HEIGHT)
-  {
-    ERROR_LOG(VIDEO, "Framebuffer is too large: %ix%i", fbWidth, fbHeight);
-    return;
-  }
-
-  u32 offset = 0;
-  u8* TexturePointer = GetNextColorTexture();
-
-  for (u16 y = 0; y < fbHeight; y++)
-  {
-    for (u16 x = 0; x < fbWidth; x += 2)
-    {
-      // We do this one color sample (aka 2 RGB pixles) at a time
-      int Y1 = xfb[x].Y - 16;
-      int Y2 = xfb[x + 1].Y - 16;
-      int U = int(xfb[x].UV) - 128;
-      int V = int(xfb[x + 1].UV) - 128;
-
-      // We do the inverse BT.601 conversion for YCbCr to RGB
-      // http://www.equasys.de/colorconversion.html#YCbCr-RGBColorFormatConversion
-      TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y1 + 1.596f * V), 0, 255);
-      TexturePointer[offset++] =
-          MathUtil::Clamp(int(1.164f * Y1 - 0.392f * U - 0.813f * V), 0, 255);
-      TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y1 + 2.017f * U), 0, 255);
-      TexturePointer[offset++] = 255;
-
-      TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y2 + 1.596f * V), 0, 255);
-      TexturePointer[offset++] =
-          MathUtil::Clamp(int(1.164f * Y2 - 0.392f * U - 0.813f * V), 0, 255);
-      TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y2 + 2.017f * U), 0, 255);
-      TexturePointer[offset++] = 255;
-    }
-    xfb += fbWidth;
-  }
-  SwapColorTexture();
-}
-
 // Called on the GPU thread
-void SWRenderer::SwapImpl(u32 xfbAddr, u32 fbWidth, u32 fbStride, u32 fbHeight,
-                          const EFBRectangle& rc, u64 ticks, float Gamma)
+void SWRenderer::SwapImpl(AbstractTexture* texture, const EFBRectangle& rc, u64 ticks, float Gamma)
 {
-  if (g_ActiveConfig.bUseXFB)
-  {
-    EfbInterface::yuv422_packed* xfb = (EfbInterface::yuv422_packed*)Memory::GetPointer(xfbAddr);
-    UpdateColorTexture(xfb, fbWidth, fbHeight);
-  }
-  else
-  {
-    EfbInterface::BypassXFB(GetCurrentColorTexture(), fbWidth, fbHeight, rc, Gamma);
-  }
+  SWOGLWindow::s_instance->ShowImage(texture, 1.0);
 
   // Save screenshot
   if (IsFrameDumping())
   {
     AVIDump::Frame state = AVIDump::FetchState(ticks);
-    DumpFrameData(GetCurrentColorTexture(), fbWidth, fbHeight, fbWidth * 4, state);
+    //DumpFrameData(GetCurrentColorTexture(), fbWidth, fbHeight, fbWidth * 4, state);
     FinishFrameData();
   }
 
@@ -136,15 +59,9 @@ void SWRenderer::SwapImpl(u32 xfbAddr, u32 fbWidth, u32 fbStride, u32 fbHeight,
 
   DrawDebugText();
 
-  SWOGLWindow::s_instance->ShowImage(GetCurrentColorTexture(), fbWidth * 4, fbWidth, fbHeight, 1.0);
+  SWOGLWindow::s_instance->ShowImage(texture, 1.0);
 
   UpdateActiveConfig();
-
-  // virtual XFB is not supported
-  if (g_ActiveConfig.bUseXFB)
-  {
-    Config::SetCurrent(Config::GFX_USE_REAL_XFB, true);
-  }
 }
 
 u32 SWRenderer::AccessEFB(EFBAccessType type, u32 x, u32 y, u32 InputData)
diff --git a/Source/Core/VideoBackends/Software/SWRenderer.h b/Source/Core/VideoBackends/Software/SWRenderer.h
index b19b9841fd..e30e490bd7 100644
--- a/Source/Core/VideoBackends/Software/SWRenderer.h
+++ b/Source/Core/VideoBackends/Software/SWRenderer.h
@@ -14,16 +14,10 @@ class SWRenderer : public Renderer
 {
 public:
   SWRenderer();
-  ~SWRenderer() override;
 
   static void Init();
   static void Shutdown();
 
-  static u8* GetNextColorTexture();
-  static u8* GetCurrentColorTexture();
-  void SwapColorTexture();
-  void UpdateColorTexture(EfbInterface::yuv422_packed* xfb, u32 fbWidth, u32 fbHeight);
-
   void RenderText(const std::string& pstr, int left, int top, u32 color) override;
   u32 AccessEFB(EFBAccessType type, u32 x, u32 y, u32 poke_data) override;
   void PokeEFB(EFBAccessType type, const EfbPokeData* points, size_t num_points) override {}
@@ -32,8 +26,7 @@ public:
 
   TargetRectangle ConvertEFBRectangle(const EFBRectangle& rc) override;
 
-  void SwapImpl(u32 xfbAddr, u32 fbWidth, u32 fbStride, u32 fbHeight, const EFBRectangle& rc,
-                u64 ticks, float Gamma) override;
+  void SwapImpl(AbstractTexture* texture, const EFBRectangle& rc, u64 ticks, float Gamma) override;
 
   void ClearScreen(const EFBRectangle& rc, bool colorEnable, bool alphaEnable, bool zEnable,
                    u32 color, u32 z) override;
diff --git a/Source/Core/VideoBackends/Software/SWmain.cpp b/Source/Core/VideoBackends/Software/SWmain.cpp
index dff26e6d86..26a649b010 100644
--- a/Source/Core/VideoBackends/Software/SWmain.cpp
+++ b/Source/Core/VideoBackends/Software/SWmain.cpp
@@ -8,16 +8,17 @@
 #include <utility>
 
 #include "Common/CommonTypes.h"
+#include "Common/GL/GLInterfaceBase.h"
 
 #include "VideoBackends/Software/Clipper.h"
 #include "VideoBackends/Software/DebugUtil.h"
-#include "VideoBackends/Software/EfbCopy.h"
 #include "VideoBackends/Software/EfbInterface.h"
 #include "VideoBackends/Software/Rasterizer.h"
 #include "VideoBackends/Software/SWOGLWindow.h"
 #include "VideoBackends/Software/SWRenderer.h"
 #include "VideoBackends/Software/SWTexture.h"
 #include "VideoBackends/Software/SWVertexLoader.h"
+#include "VideoBackends/Software/TextureCache.h"
 #include "VideoBackends/Software/VideoBackend.h"
 
 #include "VideoCommon/FramebufferManagerBase.h"
@@ -46,58 +47,6 @@ public:
   bool IsFlushed() const override { return true; }
 };
 
-class TextureCache : public TextureCacheBase
-{
-public:
-  bool CompileShaders() override { return true; }
-  void DeleteShaders() override {}
-  void ConvertTexture(TCacheEntry* entry, TCacheEntry* unconverted, const void* palette,
-                      TLUTFormat format) override
-  {
-  }
-  void CopyEFB(u8* dst, const EFBCopyParams& params, u32 native_width, u32 bytes_per_row,
-               u32 num_blocks_y, u32 memory_stride, const EFBRectangle& src_rect,
-               bool scale_by_half) override
-  {
-    EfbCopy::CopyEfb();
-  }
-
-private:
-  std::unique_ptr<AbstractTexture> CreateTexture(const TextureConfig& config) override
-  {
-    return std::make_unique<SWTexture>(config);
-  }
-
-  void CopyEFBToCacheEntry(TCacheEntry* entry, bool is_depth_copy, const EFBRectangle& src_rect,
-                           bool scale_by_half, unsigned int cbuf_id, const float* colmat) override
-  {
-    EfbCopy::CopyEfb();
-  }
-};
-
-class XFBSource : public XFBSourceBase
-{
-  void DecodeToTexture(u32 xfbAddr, u32 fbWidth, u32 fbHeight) override {}
-  void CopyEFB(float Gamma) override {}
-};
-
-class FramebufferManager : public FramebufferManagerBase
-{
-  std::unique_ptr<XFBSourceBase> CreateXFBSource(unsigned int target_width,
-                                                 unsigned int target_height,
-                                                 unsigned int layers) override
-  {
-    return std::make_unique<XFBSource>();
-  }
-
-  std::pair<u32, u32> GetTargetSize() const override { return std::make_pair(0, 0); }
-  void CopyToRealXFB(u32 xfbAddr, u32 fbStride, u32 fbHeight, const EFBRectangle& sourceRc,
-                     float Gamma = 1.0f) override
-  {
-    EfbCopy::CopyEfb();
-  }
-};
-
 std::string VideoSoftware::GetName() const
 {
   return "Software Renderer";
@@ -123,6 +72,7 @@ void VideoSoftware::InitBackendInfo()
   g_Config.backend_info.bSupportsGPUTextureDecoding = false;
   g_Config.backend_info.bSupportsST3CTextures = false;
   g_Config.backend_info.bSupportsBPTCTextures = false;
+  g_Config.backend_info.bSupportsCopyToVram = false;
 
   // aamodes
   g_Config.backend_info.AAModes = {1};
@@ -169,12 +119,14 @@ void VideoSoftware::Video_Cleanup()
 // This is called after Video_Initialize() from the Core
 void VideoSoftware::Video_Prepare()
 {
+  GLInterface->MakeCurrent();
+  SWOGLWindow::s_instance->Prepare();
+
   g_renderer = std::make_unique<SWRenderer>();
   g_vertex_manager = std::make_unique<SWVertexLoader>();
   g_perf_query = std::make_unique<PerfQuery>();
   g_texture_cache = std::make_unique<TextureCache>();
   SWRenderer::Init();
-  g_framebuffer_manager = std::make_unique<FramebufferManager>();
 }
 
 unsigned int VideoSoftware::PeekMessages()
diff --git a/Source/Core/VideoBackends/Software/Software.vcxproj b/Source/Core/VideoBackends/Software/Software.vcxproj
index bf13233d67..36d833ba2c 100644
--- a/Source/Core/VideoBackends/Software/Software.vcxproj
+++ b/Source/Core/VideoBackends/Software/Software.vcxproj
@@ -65,6 +65,7 @@
     <ClInclude Include="SWTexture.h" />
     <ClInclude Include="SWVertexLoader.h" />
     <ClInclude Include="Tev.h" />
+    <ClInclude Include="TextureCache.h" />
     <ClInclude Include="TextureEncoder.h" />
     <ClInclude Include="TextureSampler.h" />
     <ClInclude Include="TransformUnit.h" />
diff --git a/Source/Core/VideoBackends/Software/TextureCache.h b/Source/Core/VideoBackends/Software/TextureCache.h
new file mode 100644
index 0000000000..82c2ce9f55
--- /dev/null
+++ b/Source/Core/VideoBackends/Software/TextureCache.h
@@ -0,0 +1,41 @@
+#pragma once
+
+#include <memory>
+
+#include "VideoBackends/Software/EfbCopy.h"
+#include "VideoBackends/Software/SWTexture.h"
+#include "VideoCommon/TextureCacheBase.h"
+
+namespace SW
+{
+
+class TextureCache : public TextureCacheBase
+{
+public:
+  bool CompileShaders() override { return true; }
+  void DeleteShaders() override {}
+  void ConvertTexture(TCacheEntry* entry, TCacheEntry* unconverted, const void* palette,
+    TLUTFormat format) override
+  {
+  }
+  void CopyEFB(u8* dst, const EFBCopyParams& params, u32 native_width, u32 bytes_per_row,
+               u32 num_blocks_y, u32 memory_stride, const EFBRectangle& src_rect,
+               bool scale_by_half) override
+  {
+    EfbCopy::CopyEfb();
+  }
+
+private:
+  std::unique_ptr<AbstractTexture> CreateTexture(const TextureConfig& config) override
+  {
+    return std::make_unique<SWTexture>(config);
+  }
+  
+  void CopyEFBToCacheEntry(TCacheEntry* entry, bool is_depth_copy, const EFBRectangle& src_rect,
+                           bool scale_by_half, unsigned int cbuf_id, const float* colmat) override
+  {
+    EfbCopy::CopyEfb();
+  }
+};
+
+} // namespace SW