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swig: add WebPEncodeLossless* wrappers

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Change-Id: If373a5d2953ec53b856900666422fb2b4f9939a4
This commit is contained in:
James Zern
2012-07-17 13:42:15 -07:00
parent c2416c9b61
commit 4972302d24
3 changed files with 318 additions and 48 deletions
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103
swig/libwebp.i
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@ -90,6 +90,10 @@ static jint returned_buffer_size(
{ "Java_com_google_webp_libwebpJNI_wrap_1WebPEncodeBGR", 1 },
{ "Java_com_google_webp_libwebpJNI_wrap_1WebPEncodeRGBA", 1 },
{ "Java_com_google_webp_libwebpJNI_wrap_1WebPEncodeBGRA", 1 },
{ "Java_com_google_webp_libwebpJNI_wrap_1WebPEncodeLosslessRGB", 1 },
{ "Java_com_google_webp_libwebpJNI_wrap_1WebPEncodeLosslessBGR", 1 },
{ "Java_com_google_webp_libwebpJNI_wrap_1WebPEncodeLosslessRGBA", 1 },
{ "Java_com_google_webp_libwebpJNI_wrap_1WebPEncodeLosslessBGRA", 1 },
{ NULL, 0 }
};
const struct sizemap *p;
@ -108,6 +112,9 @@ static jint returned_buffer_size(
typedef size_t (*WebPEncodeFunction)(const uint8_t* rgb,
int width, int height, int stride,
float quality_factor, uint8_t** output);
typedef size_t (*WebPEncodeLosslessFunction)(const uint8_t* rgb,
int width, int height, int stride,
uint8_t** output);
static uint8_t* encode(const uint8_t* rgb,
int width, int height, int stride,
@ -123,6 +130,19 @@ static uint8_t* encode(const uint8_t* rgb,
*unused = 1;
return image_size ? output : NULL;
}
static uint8_t* encode_lossless(const uint8_t* rgb,
int width, int height, int stride,
WebPEncodeLosslessFunction encfn,
int* output_size, int* unused) {
uint8_t *output = NULL;
const size_t image_size = encfn(rgb, width, height, stride, &output);
// the values of following two will be interpreted by returned_buffer_size()
// as 'width' and 'height' in the size calculation.
*output_size = image_size;
*unused = 1;
return image_size ? output : NULL;
}
%}
//------------------------------------------------------------------------------
@ -137,6 +157,10 @@ static uint8_t* encode(const uint8_t* rgb,
%newobject wrap_WebPEncodeBGR;
%newobject wrap_WebPEncodeRGBA;
%newobject wrap_WebPEncodeBGRA;
%newobject wrap_WebPEncodeLosslessRGB;
%newobject wrap_WebPEncodeLosslessBGR;
%newobject wrap_WebPEncodeLosslessRGBA;
%newobject wrap_WebPEncodeLosslessBGRA;
#ifdef SWIGJAVA
// There's no reason to call these directly
@ -144,6 +168,10 @@ static uint8_t* encode(const uint8_t* rgb,
%javamethodmodifiers wrap_WebPEncodeBGR "private";
%javamethodmodifiers wrap_WebPEncodeRGBA "private";
%javamethodmodifiers wrap_WebPEncodeBGRA "private";
%javamethodmodifiers wrap_WebPEncodeLosslessRGB "private";
%javamethodmodifiers wrap_WebPEncodeLosslessBGR "private";
%javamethodmodifiers wrap_WebPEncodeLosslessRGBA "private";
%javamethodmodifiers wrap_WebPEncodeLosslessBGRA "private";
#endif /* SWIGJAVA */
%inline %{
@ -152,33 +180,36 @@ static uint8_t* encode(const uint8_t* rgb,
// than dealing with the return pointer.
// The additional parameters are to allow reuse of returned_buffer_size(),
// unused2 and output_size will be used in this case.
static uint8_t* wrap_WebPEncodeRGB(
const uint8_t* rgb, int* unused1, int* unused2, int* output_size,
int width, int height, int stride, float quality_factor) {
return encode(rgb, width, height, stride, quality_factor,
WebPEncodeRGB, output_size, unused2);
}
#define LOSSY_WRAPPER(FUNC) \
static uint8_t* wrap_##FUNC( \
const uint8_t* rgb, int* unused1, int* unused2, int* output_size, \
int width, int height, int stride, float quality_factor) { \
return encode(rgb, width, height, stride, quality_factor, \
FUNC, output_size, unused2); \
} \
static uint8_t* wrap_WebPEncodeBGR(
const uint8_t* bgr, int* unused1, int* unused2, int* output_size,
int width, int height, int stride, float quality_factor) {
return encode(bgr, width, height, stride, quality_factor,
WebPEncodeBGR, output_size, unused2);
}
LOSSY_WRAPPER(WebPEncodeRGB)
LOSSY_WRAPPER(WebPEncodeBGR)
LOSSY_WRAPPER(WebPEncodeRGBA)
LOSSY_WRAPPER(WebPEncodeBGRA)
static uint8_t* wrap_WebPEncodeRGBA(
const uint8_t* rgba, int* unused1, int* unused2, int* output_size,
int width, int height, int stride, float quality_factor) {
return encode(rgba, width, height, stride, quality_factor,
WebPEncodeRGBA, output_size, unused2);
}
#undef LOSSY_WRAPPER
#define LOSSLESS_WRAPPER(FUNC) \
static uint8_t* wrap_##FUNC( \
const uint8_t* rgb, int* unused1, int* unused2, int* output_size, \
int width, int height, int stride) { \
return encode_lossless(rgb, width, height, stride, \
FUNC, output_size, unused2); \
} \
LOSSLESS_WRAPPER(WebPEncodeLosslessRGB)
LOSSLESS_WRAPPER(WebPEncodeLosslessBGR)
LOSSLESS_WRAPPER(WebPEncodeLosslessRGBA)
LOSSLESS_WRAPPER(WebPEncodeLosslessBGRA)
#undef LOSSLESS_WRAPPER
static uint8_t* wrap_WebPEncodeBGRA(
const uint8_t* bgra, int* unused1, int* unused2, int* output_size,
int width, int height, int stride, float quality_factor) {
return encode(bgra, width, height, stride, quality_factor,
WebPEncodeBGRA, output_size, unused2);
}
%}
//------------------------------------------------------------------------------
@ -226,5 +257,29 @@ static uint8_t* wrap_WebPEncodeBGRA(
return wrap_WebPEncodeBGRA(
bgra, UNUSED, UNUSED, outputSize, width, height, stride, quality_factor);
}
public static byte[] WebPEncodeLosslessRGB(
byte[] rgb, int width, int height, int stride) {
return wrap_WebPEncodeLosslessRGB(
rgb, UNUSED, UNUSED, outputSize, width, height, stride);
}
public static byte[] WebPEncodeLosslessBGR(
byte[] bgr, int width, int height, int stride) {
return wrap_WebPEncodeLosslessBGR(
bgr, UNUSED, UNUSED, outputSize, width, height, stride);
}
public static byte[] WebPEncodeLosslessRGBA(
byte[] rgba, int width, int height, int stride) {
return wrap_WebPEncodeLosslessRGBA(
rgba, UNUSED, UNUSED, outputSize, width, height, stride);
}
public static byte[] WebPEncodeLosslessBGRA(
byte[] bgra, int width, int height, int stride) {
return wrap_WebPEncodeLosslessBGRA(
bgra, UNUSED, UNUSED, outputSize, width, height, stride);
}
%}
#endif /* SWIGJAVA */