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vp9: Mark functions with [[nodiscard]] where applicable

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Prevents values from mistakenly being discarded in cases where it's a
bug to do so.
This commit is contained in:
Lioncash 2020-10-29 22:40:46 -04:00
parent badea3b301
commit 0d713cf8eb
2 changed files with 13 additions and 13 deletions
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8
src/video_core/command_classes/codecs/vp9.cpp
View File

@ -200,7 +200,7 @@ constexpr std::array<s32, 254> map_lut{
// 6.2.14 Tile size calculation
s32 CalcMinLog2TileCols(s32 frame_width) {
[[nodiscard]] s32 CalcMinLog2TileCols(s32 frame_width) {
const s32 sb64_cols = (frame_width + 63) / 64;
s32 min_log2 = 0;
@ -211,7 +211,7 @@ s32 CalcMinLog2TileCols(s32 frame_width) {
return min_log2;
}
s32 CalcMaxLog2TileCols(s32 frame_width) {
[[nodiscard]] s32 CalcMaxLog2TileCols(s32 frame_width) {
const s32 sb64_cols = (frame_width + 63) / 64;
s32 max_log2 = 1;
@ -223,7 +223,7 @@ s32 CalcMaxLog2TileCols(s32 frame_width) {
}
// Recenters probability. Based on section 6.3.6 of VP9 Specification
s32 RecenterNonNeg(s32 new_prob, s32 old_prob) {
[[nodiscard]] s32 RecenterNonNeg(s32 new_prob, s32 old_prob) {
if (new_prob > old_prob * 2) {
return new_prob;
}
@ -236,7 +236,7 @@ s32 RecenterNonNeg(s32 new_prob, s32 old_prob) {
}
// Adjusts old_prob depending on new_prob. Based on section 6.3.5 of VP9 Specification
s32 RemapProbability(s32 new_prob, s32 old_prob) {
[[nodiscard]] s32 RemapProbability(s32 new_prob, s32 old_prob) {
new_prob--;
old_prob--;

18
src/video_core/command_classes/codecs/vp9.h
View File

@ -37,11 +37,11 @@ public:
/// Signal the end of the bitstream
void End();
std::vector<u8>& GetBuffer() {
[[nodiscard]] std::vector<u8>& GetBuffer() {
return base_stream.GetBuffer();
}
const std::vector<u8>& GetBuffer() const {
[[nodiscard]] const std::vector<u8>& GetBuffer() const {
return base_stream.GetBuffer();
}
@ -75,10 +75,10 @@ public:
void Flush();
/// Returns byte_array
std::vector<u8>& GetByteArray();
[[nodiscard]] std::vector<u8>& GetByteArray();
/// Returns const byte_array
const std::vector<u8>& GetByteArray() const;
[[nodiscard]] const std::vector<u8>& GetByteArray() const;
private:
/// Write bit_count bits from value into buffer
@ -104,7 +104,7 @@ public:
std::vector<u8>& ComposeFrameHeader(NvdecCommon::NvdecRegisters& state);
/// Returns true if the most recent frame was a hidden frame.
bool WasFrameHidden() const {
[[nodiscard]] bool WasFrameHidden() const {
return hidden;
}
@ -141,17 +141,17 @@ private:
void WriteMvProbabilityUpdate(VpxRangeEncoder& writer, u8 new_prob, u8 old_prob);
/// Returns VP9 information from NVDEC provided offset and size
Vp9PictureInfo GetVp9PictureInfo(const NvdecCommon::NvdecRegisters& state);
[[nodiscard]] Vp9PictureInfo GetVp9PictureInfo(const NvdecCommon::NvdecRegisters& state);
/// Read and convert NVDEC provided entropy probs to Vp9EntropyProbs struct
void InsertEntropy(u64 offset, Vp9EntropyProbs& dst);
/// Returns frame to be decoded after buffering
Vp9FrameContainer GetCurrentFrame(const NvdecCommon::NvdecRegisters& state);
[[nodiscard]] Vp9FrameContainer GetCurrentFrame(const NvdecCommon::NvdecRegisters& state);
/// Use NVDEC providied information to compose the headers for the current frame
std::vector<u8> ComposeCompressedHeader();
VpxBitStreamWriter ComposeUncompressedHeader();
[[nodiscard]] std::vector<u8> ComposeCompressedHeader();
[[nodiscard]] VpxBitStreamWriter ComposeUncompressedHeader();
GPU& gpu;
std::vector<u8> frame;