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consolidated to WebPEncode_wrapper

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wiredfool 2013-05-15 16:56:59 -07:00
parent a235a69d0c
commit 11a0fb5f76
2 changed files with 16 additions and 49 deletions
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13
PIL/WebPImagePlugin.py
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@ -5,8 +5,8 @@ import _webp
_VALID_WEBP_ENCODERS_BY_MODE = {
"RGB": _webp.WebPEncodeRGB,
"RGBA": _webp.WebPEncodeRGBA,
"RGB": _webp.WebPEncode,
"RGBA": _webp.WebPEncode,
}
@ -50,20 +50,17 @@ class WebPImageFile(ImageFile.ImageFile):
def _save(im, fp, filename):
image_mode = im.mode
if image_mode not in _VALID_WEBP_ENCODERS_BY_MODE:
if im.mode not in _VALID_WEBP_ENCODERS_BY_MODE:
raise IOError("cannot write mode %s as WEBP" % image_mode)
webp_encoder = _VALID_WEBP_ENCODERS_BY_MODE[image_mode]
stride = im.size[0] * _STRIDE_MULTIPLIERS_BY_MODE[image_mode]
quality = im.encoderinfo.get("quality", 80)
data = webp_encoder(
data = _webp.WebPEncode(
im.tobytes(),
im.size[0],
im.size[1],
stride,
float(quality),
im.mode
)
fp.write(data)

52
_webp.c
View File

@ -5,61 +5,32 @@
#include <webp/types.h>
PyObject* WebPEncodeRGB_wrapper(PyObject* self, PyObject* args)
PyObject* WebPEncode_wrapper(PyObject* self, PyObject* args)
{
PyBytesObject *rgb_string;
int width;
int height;
int stride;
float quality_factor;
uint8_t *rgb;
uint8_t *output;
char *mode;
Py_ssize_t size;
size_t ret_size;
if (!PyArg_ParseTuple(args, "Siiif", &rgb_string, &width, &height, &stride, &quality_factor)) {
if (!PyArg_ParseTuple(args, "Siifs", &rgb_string, &width, &height, &quality_factor, &mode)) {
Py_RETURN_NONE;
}
PyBytes_AsStringAndSize((PyObject *) rgb_string, (char**)&rgb, &size);
if (stride * height > size) {
Py_RETURN_NONE;
}
if (strcmp(mode, "RGBA")==0){
ret_size = WebPEncodeRGBA(rgb, width, height, 4* width, quality_factor, &output);
} else if (strcmp(mode, "RGB")==0){
ret_size = WebPEncodeRGB(rgb, width, height, 3* width, quality_factor, &output);
} else {
Py_RETURN_NONE;
}
ret_size = WebPEncodeRGB(rgb, width, height, stride, quality_factor, &output);
if (ret_size > 0) {
PyObject *ret = PyBytes_FromStringAndSize((char*)output, ret_size);
free(output);
return ret;
}
Py_RETURN_NONE;
}
PyObject* WebPEncodeRGBA_wrapper(PyObject* self, PyObject* args)
{
PyBytesObject *rgba_string;
int width;
int height;
int stride;
float quality_factor;
uint8_t *rgba;
uint8_t *output;
Py_ssize_t size;
size_t ret_size;
if (!PyArg_ParseTuple(args, "Siiif", &rgba_string, &width, &height, &stride, &quality_factor)) {
Py_RETURN_NONE;
}
PyBytes_AsStringAndSize((PyObject *) rgba_string, (char**)&rgba, &size);
if (stride * height > size) {
Py_RETURN_NONE;
}
ret_size = WebPEncodeRGBA(rgba, width, height, stride, quality_factor, &output);
if (ret_size > 0) {
PyObject *ret = PyBytes_FromStringAndSize((char*)output, ret_size);
free(output);
@ -141,8 +112,7 @@ PyObject* WebPDecoderBuggyAlpha_wrapper(PyObject* self, PyObject* args){
static PyMethodDef webpMethods[] =
{
{"WebPEncodeRGB", WebPEncodeRGB_wrapper, METH_VARARGS, "WebPEncodeRGB"},
{"WebPEncodeRGBA", WebPEncodeRGBA_wrapper, METH_VARARGS, "WebPEncodeRGBA"},
{"WebPEncode", WebPEncode_wrapper, METH_VARARGS, "WebPEncode"},
{"WebPDecode", WebPDecode_wrapper, METH_VARARGS, "WebPDecode"},
{"WebPDecoderVersion", WebPDecoderVersion_wrapper, METH_VARARGS, "WebPVersion"},
{"WebPDecoderBuggyAlpha", WebPDecoderBuggyAlpha_wrapper, METH_VARARGS, "WebPDecoderBuggyAlpha"},