pixelformat: added convenience function for whether a format is float or not

2020-04-04 13:46:12 +11:00
parent 666bd64943
commit dfb00d9f15
2 changed files with 26 additions and 0 deletions
@@ -48,6 +48,27 @@ bool PixelFormat::FormatHasAlphaChannel(const PixelFormat::Format &format)
  return false;
 }

+bool PixelFormat::FormatIsFloat(const PixelFormat::Format &format)
+{
+  switch (format) {
+  case PixelFormat::PIX_FMT_RGB16F:
+  case PixelFormat::PIX_FMT_RGBA16F:
+  case PixelFormat::PIX_FMT_RGB32F:
+  case PixelFormat::PIX_FMT_RGBA32F:
+    return true;
+
+  case PixelFormat::PIX_FMT_RGB8:
+  case PixelFormat::PIX_FMT_RGBA8:
+  case PixelFormat::PIX_FMT_RGB16U:
+  case PixelFormat::PIX_FMT_RGBA16U:
+  case PixelFormat::PIX_FMT_INVALID:
+  case PixelFormat::PIX_FMT_COUNT:
+    break;
+  }
+
+  return false;
+}
+
 OIIO::TypeDesc::BASETYPE PixelFormat::GetOIIOTypeDesc(const PixelFormat::Format &format)
 {
  switch (format) {
@@ -114,6 +114,11 @@ public:
   */
  static bool FormatHasAlphaChannel(const Format& format);

+  /**
+   * @brief Simple convenience function returning whether a pixel format is float-based or integer-based
+   */
+  static bool FormatIsFloat(const Format& format);
+
  /**
   * @brief Get corresponding OpenImageIO TypeDesc for a given pixel format
   */