Merge pull request #9092 from shuffle2/vshack

msbuild: Merge "Core" libs into single DolphinLib

1 files changed, 86 insertions, 0 deletions

diff --git a/Source/Core/VideoBackends/OGL/OGLNativeVertexFormat.cpp b/Source/Core/VideoBackends/OGL/OGLNativeVertexFormat.cpp
new file mode 100644
index 0000000000..09114fb974
--- /dev/null
+++ b/Source/Core/VideoBackends/OGL/OGLNativeVertexFormat.cpp
@@ -0,0 +1,86 @@
+// Copyright 2008 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "Common/CommonTypes.h"
+#include "Common/GL/GLUtil.h"
+#include "Common/MsgHandler.h"
+
+#include "VideoBackends/OGL/OGLRender.h"
+#include "VideoBackends/OGL/OGLVertexManager.h"
+#include "VideoBackends/OGL/ProgramShaderCache.h"
+
+#include "VideoCommon/NativeVertexFormat.h"
+#include "VideoCommon/VertexShaderGen.h"
+
+// Here's some global state. We only use this to keep track of what we've sent to the OpenGL state
+// machine.
+
+namespace OGL
+{
+std::unique_ptr<NativeVertexFormat>
+Renderer::CreateNativeVertexFormat(const PortableVertexDeclaration& vtx_decl)
+{
+  return std::make_unique<GLVertexFormat>(vtx_decl);
+}
+
+static inline GLuint VarToGL(VarType t)
+{
+  static const GLuint lookup[5] = {GL_UNSIGNED_BYTE, GL_BYTE, GL_UNSIGNED_SHORT, GL_SHORT,
+                                   GL_FLOAT};
+  return lookup[t];
+}
+
+static void SetPointer(u32 attrib, u32 stride, const AttributeFormat& format)
+{
+  if (!format.enable)
+    return;
+
+  glEnableVertexAttribArray(attrib);
+  if (format.integer)
+    glVertexAttribIPointer(attrib, format.components, VarToGL(format.type), stride,
+                           (u8*)nullptr + format.offset);
+  else
+    glVertexAttribPointer(attrib, format.components, VarToGL(format.type), true, stride,
+                          (u8*)nullptr + format.offset);
+}
+
+GLVertexFormat::GLVertexFormat(const PortableVertexDeclaration& vtx_decl)
+    : NativeVertexFormat(vtx_decl)
+{
+  const u32 vertex_stride = vtx_decl.stride;
+
+  // We will not allow vertex components causing uneven strides.
+  if (vertex_stride & 3)
+    PanicAlertFmt("Uneven vertex stride: {}", vertex_stride);
+
+  VertexManager* const vm = static_cast<VertexManager*>(g_vertex_manager.get());
+
+  glGenVertexArrays(1, &VAO);
+  glBindVertexArray(VAO);
+  ProgramShaderCache::BindVertexFormat(this);
+
+  // the element buffer is bound directly to the vao, so we must it set for every vao
+  glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vm->GetIndexBufferHandle());
+  glBindBuffer(GL_ARRAY_BUFFER, vm->GetVertexBufferHandle());
+
+  SetPointer(SHADER_POSITION_ATTRIB, vertex_stride, vtx_decl.position);
+
+  for (int i = 0; i < 3; i++)
+    SetPointer(SHADER_NORM0_ATTRIB + i, vertex_stride, vtx_decl.normals[i]);
+
+  for (int i = 0; i < 2; i++)
+    SetPointer(SHADER_COLOR0_ATTRIB + i, vertex_stride, vtx_decl.colors[i]);
+
+  for (int i = 0; i < 8; i++)
+    SetPointer(SHADER_TEXTURE0_ATTRIB + i, vertex_stride, vtx_decl.texcoords[i]);
+
+  SetPointer(SHADER_POSMTX_ATTRIB, vertex_stride, vtx_decl.posmtx);
+}
+
+GLVertexFormat::~GLVertexFormat()
+{
+  ProgramShaderCache::InvalidateVertexFormatIfBound(VAO);
+  glDeleteVertexArrays(1, &VAO);
+}
+}  // namespace OGL