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Add a WEBP_NODISCARD

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Change-Id: Ice66f2aa6358474d728fb19c571edc86ed139a49
This commit is contained in:
Vincent Rabaud
2023-11-10 13:57:07 +01:00
parent 24d7f9cb6e
commit 13d9c30b2b
25 changed files with 321 additions and 222 deletions
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17
src/dec/vp8_dec.h
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@ -15,6 +15,7 @@
#define WEBP_DEC_VP8_DEC_H_
#include "src/webp/decode.h"
#include "src/webp/types.h"
#ifdef __cplusplus
extern "C" {
@ -108,16 +109,14 @@ struct VP8Io {
};
// Internal, version-checked, entry point
int VP8InitIoInternal(VP8Io* const, int);
WEBP_NODISCARD int VP8InitIoInternal(VP8Io* const, int);
// Set the custom IO function pointers and user-data. The setter for IO hooks
// should be called before initiating incremental decoding. Returns true if
// WebPIDecoder object is successfully modified, false otherwise.
int WebPISetIOHooks(WebPIDecoder* const idec,
VP8IoPutHook put,
VP8IoSetupHook setup,
VP8IoTeardownHook teardown,
void* user_data);
WEBP_NODISCARD int WebPISetIOHooks(WebPIDecoder* const idec, VP8IoPutHook put,
VP8IoSetupHook setup,
VP8IoTeardownHook teardown, void* user_data);
// Main decoding object. This is an opaque structure.
typedef struct VP8Decoder VP8Decoder;
@ -128,17 +127,17 @@ VP8Decoder* VP8New(void);
// Must be called to make sure 'io' is initialized properly.
// Returns false in case of version mismatch. Upon such failure, no other
// decoding function should be called (VP8Decode, VP8GetHeaders, ...)
static WEBP_INLINE int VP8InitIo(VP8Io* const io) {
WEBP_NODISCARD static WEBP_INLINE int VP8InitIo(VP8Io* const io) {
return VP8InitIoInternal(io, WEBP_DECODER_ABI_VERSION);
}
// Decode the VP8 frame header. Returns true if ok.
// Note: 'io->data' must be pointing to the start of the VP8 frame header.
int VP8GetHeaders(VP8Decoder* const dec, VP8Io* const io);
WEBP_NODISCARD int VP8GetHeaders(VP8Decoder* const dec, VP8Io* const io);
// Decode a picture. Will call VP8GetHeaders() if it wasn't done already.
// Returns false in case of error.
int VP8Decode(VP8Decoder* const dec, VP8Io* const io);
WEBP_NODISCARD int VP8Decode(VP8Decoder* const dec, VP8Io* const io);
// Return current status of the decoder:
VP8StatusCode VP8Status(VP8Decoder* const dec);