Stop using 4D matrices and do 2D transforms in the GPU

Author: vircon32

DesktopEmulator/CMakeLists.txt

@@ -280,7 +280,6 @@ set(EMULATOR_SRC
     ${INFRASTRUCTURE_DIR}/FilePaths.cpp
     ${INFRASTRUCTURE_DIR}/FileSignatures.cpp
     ${INFRASTRUCTURE_DIR}/Logger.cpp
-    ${INFRASTRUCTURE_DIR}/Matrix4D.cpp
     ${INFRASTRUCTURE_DIR}/OpenGL2DContext.cpp
     ${INFRASTRUCTURE_DIR}/StopWatch.cpp
     ${INFRASTRUCTURE_DIR}/StringFunctions.cpp
@@ -295,7 +294,6 @@ set(EDITCONTROLS_SRC
     ${EDITCONTROLS_DIR}/Main.cpp
     ${INFRASTRUCTURE_DIR}/FilePaths.cpp
     ${INFRASTRUCTURE_DIR}/Logger.cpp
-    ${INFRASTRUCTURE_DIR}/Matrix4D.cpp
     ${INFRASTRUCTURE_DIR}/OpenGL2DContext.cpp
     ${INFRASTRUCTURE_DIR}/StringFunctions.cpp
     ${INFRASTRUCTURE_DIR}/Texture.cpp)

DesktopEmulator/DesktopInfrastructure/EmulatorInterfaces.hpp

@@ -0,0 +1,77 @@
+// *****************************************************************************
+    // start include guard
+    #ifndef EMULATORINTERFACES_HPP
+    #define EMULATORINTERFACES_HPP
+    
+    // include common vircon headers
+    #include "../../VirconDefinitions/Constants.hpp"
+    #include "../../VirconDefinitions/DataStructures.hpp"
+// *****************************************************************************
+
+
+namespace V32
+{
+    // =============================================================================
+    //      DEFINITIONS FOR GAMEPAD CONTROLLER INTERFACES
+    // =============================================================================
+    
+    
+    // button codes for input events
+    enum class GamepadButtons
+    {
+        Start = 0,
+        A, B, X, Y, L, R
+    };
+    
+    // -----------------------------------------------------------------------------
+    
+    // directions codes for input events
+    enum class GamepadDirections
+    {
+        Left = 0,
+        Right,
+        Up,
+        Down
+    };
+    
+    
+    // =============================================================================
+    //      DEFINITIONS FOR SPU INTERFACES
+    // =============================================================================
+    
+    
+    // define the sound buffers used for SPU audio output
+    typedef struct
+    {
+        int32_t SequenceNumber;
+        SPUSample Samples[ Constants::SPUSamplesPerFrame ];
+    }
+    SPUOutputBuffer;
+    
+    
+    // =============================================================================
+    //      DEFINITIONS FOR GPU INTERFACES
+    // =============================================================================
+    
+    
+    typedef struct
+    {
+        float x, y;
+    }
+    GPUPoint;
+    
+    // -----------------------------------------------------------------------------
+    
+    typedef struct
+    {
+        GPUPoint VertexPositions[ 4 ];
+        GPUPoint VertexTexCoords[ 4 ];
+    }
+    GPUQuad;
+}
+
+
+// *****************************************************************************
+    // end include guard
+    #endif
+// *****************************************************************************