整理代码

2026-09-28 21:33:04 +08:00 · 2026-09-28 21:33:04 +08:00 · c7b4e178ec
commit c7b4e178ec
364 changed files with 59691 additions and 0 deletions
--- a/video/core/SampleFormat.cpp
+++ b/video/core/SampleFormat.cpp
@ -0,0 +1,119 @@
+/*
+ *******************************************************************************
+ *                                   INCLUDE
+ *******************************************************************************
+ */
+#include "SampleFormat.h"
+
+namespace Video
+{
+namespace Core
+{
+/*
+ *******************************************************************************
+ *                                   TYPEDEFS
+ *******************************************************************************
+ */
+struct SampleFormatInfo
+{
+    std::string  name;
+    int          bits;
+    bool         isPlanar;
+    SampleFormat altFormat;
+};
+
+/*
+ *******************************************************************************
+ *                                  LOCAL VARIABLES
+ *******************************************************************************
+ */
+static const SampleFormatInfo sampleFormatInfo[(int)SampleFormat::NB] = {
+    {"u8", 8, false, SampleFormat::U8P},    {"s16", 16, false, SampleFormat::S16P},
+    {"s32", 32, false, SampleFormat::S32P}, {"s64", 64, false, SampleFormat::S64P},
+    {"flt", 32, false, SampleFormat::FLTP}, {"dbl", 64, false, SampleFormat::DBLP},
+    {"u8p", 8, true, SampleFormat::U8},     {"s16p", 16, true, SampleFormat::S16},
+    {"s32p", 32, true, SampleFormat::S32},  {"s64p", 64, true, SampleFormat::S64},
+    {"fltp", 32, true, SampleFormat::FLT},  {"dblp", 64, true, SampleFormat::DBL},
+};
+
+static const std::string UNKNOWN = "UNKNOWN";
+
+/*
+ *******************************************************************************
+ *                                  LOCAL FUNCTIONS
+ *******************************************************************************
+ */
+static inline bool isSampleFormatValid(SampleFormat format)
+{
+    return ((int)format >= 0 && format < SampleFormat::NB);
+}
+
+/*
+ *******************************************************************************
+ *                                   FUNCTIONS
+ *******************************************************************************
+ */
+const std::string& sampleFormatName(SampleFormat format)
+{
+    if (isSampleFormatValid(format))
+        return sampleFormatInfo[(int)format].name;
+
+    return UNKNOWN;
+}
+
+int sampleFormatBitWidth(SampleFormat format)
+{
+    if (isSampleFormatValid(format))
+        return sampleFormatInfo[(int)format].bits;
+
+    return 0;
+}
+
+int sampleFormatBytesPerSample(SampleFormat format)
+{
+    if (isSampleFormatValid(format))
+        return sampleFormatInfo[(int)format].bits >> 3;
+
+    return 0;
+}
+
+bool sampleFormatIsPlanar(SampleFormat format)
+{
+    if (isSampleFormatValid(format))
+        return sampleFormatInfo[(int)format].isPlanar;
+
+    return false;
+}
+
+int sampleFormatCalcLineSize(SampleFormat format, ChannelLayout layout, int samples)
+{
+    int size = sampleFormatBytesPerSample(format) * samples;
+    if (!sampleFormatIsPlanar(format))
+        size *= channelLayoutChannels(layout);
+
+    return size;
+}
+
+SampleFormat sampleFormatGetPackedFormat(SampleFormat format)
+{
+    if (!isSampleFormatValid(format))
+        return SampleFormat::NONE;
+
+    if (!sampleFormatIsPlanar(format))
+        return format;
+
+    return sampleFormatInfo[(int)format].altFormat;
+}
+
+SampleFormat sampleFormatGetPlanarFormat(SampleFormat format)
+{
+    if (!isSampleFormatValid(format))
+        return SampleFormat::NONE;
+
+    if (sampleFormatIsPlanar(format))
+        return format;
+
+    return sampleFormatInfo[(int)format].altFormat;
+}
+}
+}