use OIIO DWAA for cache

app/render/colorservice.cpp

@@ -1,6 +1,6 @@
 #include "colorservice.h"
 
-const int kRGBAChannels = 4;
+#include "common/define.h"
 
 ColorService::ColorService(const char* source_space, const char* dest_space)
 {

app/render/pixelservice.cpp

@@ -24,7 +24,7 @@
 #include <QDebug>
 #include <QFloat16>
 
-const int kRGBAChannels = 4;
+#include "common/define.h"
 
 PixelService::PixelService()
 {
@@ -39,21 +39,25 @@ PixelFormatInfo PixelService::GetPixelFormatInfo(const olive::PixelFormat &forma
     info.name = tr("8-bit");
     info.internal_format = GL_RGBA8;
     info.pixel_type = GL_UNSIGNED_BYTE;
+    info.oiio_desc = OIIO::TypeDesc::UINT8;
     break;
   case olive::PIX_FMT_RGBA16:
     info.name = tr("16-bit Integer");
     info.internal_format = GL_RGBA16;
     info.pixel_type = GL_UNSIGNED_SHORT;
+    info.oiio_desc = OIIO::TypeDesc::UINT16;
     break;
   case olive::PIX_FMT_RGBA16F:
     info.name = tr("Half-Float (16-bit)");
     info.internal_format = GL_RGBA16F;
     info.pixel_type = GL_HALF_FLOAT;
+    info.oiio_desc = OIIO::TypeDesc::HALF;
     break;
   case olive::PIX_FMT_RGBA32F:
     info.name = tr("Full-Float (32-bit)");
     info.internal_format = GL_RGBA32F;
     info.pixel_type = GL_FLOAT;
+    info.oiio_desc = OIIO::TypeDesc::FLOAT;
     break;
   default:
     qFatal("Invalid pixel format requested");

app/render/pixelservice.h

@@ -23,6 +23,7 @@
 
 #include <QString>
 #include <QOpenGLExtraFunctions>
+#include <OpenImageIO/imageio.h>
 
 #include "decoder/frame.h"
 #include "pixelformat.h"
@@ -43,6 +44,7 @@ struct PixelFormatInfo {
   GLenum pixel_format;
   GLenum pixel_type;
   int bytes_per_pixel;
+  OIIO::TypeDesc oiio_desc;
 };
 
 class PixelService : public QObject {

app/render/renderinstance.h

@@ -79,6 +79,8 @@ private:
   olive::PixelFormat format_;
 
   olive::RenderMode mode_;
+
+  int divider_;
 };
 
 #endif // GLINSTANCE_H