int decodeJpegData(char* jpegData, int jpegSize, int maxPixels, Bitmap* bitmap) {
int returnCode;
int maxWidth;
int maxHeight;
// Decode red channel
returnCode = decodeJpegChannel(jpegData, jpegSize, 0, &(*bitmap).red, &(*bitmap).redWidth, &(*bitmap).redHeight);
if (returnCode != MEMORY_OK) {
LOGE("Failed to decode red channel");
njDone();
freeUnsignedCharArray(&(*bitmap).red);
return returnCode;
}
doTransforms(bitmap, 1, 0, 0);
// Resize red channel
getScaledSize((*bitmap).redWidth, (*bitmap).redHeight, maxPixels, &maxWidth, &maxHeight); //We only need to do this once as r, g, b should be the same sizes
returnCode = resizeChannel(&(*bitmap).red, (*bitmap).redWidth, (*bitmap).redHeight, maxWidth, maxHeight);
if (returnCode != MEMORY_OK) {
njDone();
freeUnsignedCharArray(&(*bitmap).red);
return returnCode;
}
// Set red channel dimensions
if ((*bitmap).redWidth >= maxWidth && (*bitmap).redHeight >= maxHeight) {
(*bitmap).redWidth = maxWidth;
(*bitmap).redHeight = maxHeight;
}
// Decode green channel
returnCode = decodeJpegChannel(jpegData, jpegSize, 1, &(*bitmap).green, &(*bitmap).greenWidth, &(*bitmap).greenHeight);
if (returnCode != MEMORY_OK) {
LOGE("Failed to decode green channel");
njDone();
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
return returnCode;
}
doTransforms(bitmap, 0, 1, 0);
// Resize green channel
returnCode = resizeChannel(&(*bitmap).green, (*bitmap).greenWidth, (*bitmap).greenHeight, maxWidth, maxHeight);
if (returnCode != MEMORY_OK) {
njDone();
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
return returnCode;
}
// Set green channel dimensions
if ((*bitmap).greenWidth >= maxWidth && (*bitmap).greenHeight >= maxHeight) {
(*bitmap).greenWidth = maxWidth;
(*bitmap).greenHeight = maxHeight;
}
// Decode blue channel
returnCode = decodeJpegChannel(jpegData, jpegSize, 2, &(*bitmap).blue, &(*bitmap).blueWidth, &(*bitmap).blueHeight);
if (returnCode != MEMORY_OK) {
LOGE("Failed to decode blue channel");
njDone();
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
freeUnsignedCharArray(&(*bitmap).blue);
return returnCode;
}
doTransforms(bitmap, 0, 0, 1);
// Resize blue channel
returnCode = resizeChannel(&(*bitmap).blue, (*bitmap).blueWidth, (*bitmap).blueHeight, maxWidth, maxHeight);
if (returnCode != MEMORY_OK) {
njDone();
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
freeUnsignedCharArray(&(*bitmap).blue);
return returnCode;
}
// Set blue channel dimensions
if ((*bitmap).blueWidth >= maxWidth && (*bitmap).blueHeight >= maxHeight) {
(*bitmap).blueWidth = maxWidth;
(*bitmap).blueHeight = maxHeight;
}
// Set the final bitmap dimensions
if ((*bitmap).redWidth == (*bitmap).greenWidth && (*bitmap).redWidth == (*bitmap).blueWidth
&& (*bitmap).redHeight == (*bitmap).greenHeight && (*bitmap).redHeight == (*bitmap).blueHeight) {
(*bitmap).width = (*bitmap).redWidth;
(*bitmap).height = (*bitmap).redHeight;
} else {
njDone();
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
freeUnsignedCharArray(&(*bitmap).blue);
return INCONSISTENT_BITMAP_ERROR;
}
njDoneLeaveRGBData();
return MEMORY_OK;
}
int decodeResizeImage(char const *filename, int maxPixels, Bitmap* bitmap) {
LOGI("decodeResizeImage. START");
int returnCode;
int maxWidth;
int maxHeight;
// Decode Image
returnCode = decodeImage(filename, bitmap);
if (returnCode != MEMORY_OK) {
LOGE("Failed to decode image");
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
freeUnsignedCharArray(&(*bitmap).blue);
return returnCode;
}
LOGI("decodeResizeImage. IMAGE DECODED");
doTransforms(bitmap, 1, 0, 0);
// Resize red channel
getScaledSize((*bitmap).redWidth, (*bitmap).redHeight, maxPixels, &maxWidth, &maxHeight); //We only need to do this once as r, g, b should be the same sizes
returnCode = resizeChannel(&(*bitmap).red, (*bitmap).redWidth, (*bitmap).redHeight, maxWidth, maxHeight);
if (returnCode != MEMORY_OK) {
freeUnsignedCharArray(&(*bitmap).red);
return returnCode;
}
// Set red channel dimensions
if ((*bitmap).redWidth >= maxWidth && (*bitmap).redHeight >= maxHeight) {
(*bitmap).redWidth = maxWidth;
(*bitmap).redHeight = maxHeight;
}
LOGI("decodeResizeImage. RED COMPLETE");
/**
* GREEN CHANNEL
*/
doTransforms(bitmap, 0, 1, 0);
// Resize green channel
returnCode = resizeChannel(&(*bitmap).green, (*bitmap).greenWidth, (*bitmap).greenHeight, maxWidth, maxHeight);
if (returnCode != MEMORY_OK) {
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
return returnCode;
}
// Set green channel dimensions
if ((*bitmap).greenWidth >= maxWidth && (*bitmap).greenHeight >= maxHeight) {
(*bitmap).greenWidth = maxWidth;
(*bitmap).greenHeight = maxHeight;
}
LOGI("decodeResizeImage. GREEN COMPLETE");
/**
* BLUE CHANNEL
*/
doTransforms(bitmap, 0, 0, 1);
// Resize blue channel
returnCode = resizeChannel(&(*bitmap).blue, (*bitmap).blueWidth, (*bitmap).blueHeight, maxWidth, maxHeight);
if (returnCode != MEMORY_OK) {
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
freeUnsignedCharArray(&(*bitmap).blue);
return returnCode;
}
// Set blue channel dimensions
if ((*bitmap).blueWidth >= maxWidth && (*bitmap).blueHeight >= maxHeight) {
(*bitmap).blueWidth = maxWidth;
(*bitmap).blueHeight = maxHeight;
}
LOGI("decodeResizeImage. BLUE COMPLETE");
// Set the final bitmap dimensions
if ((*bitmap).redWidth == (*bitmap).greenWidth && (*bitmap).redWidth == (*bitmap).blueWidth
&& (*bitmap).redHeight == (*bitmap).greenHeight && (*bitmap).redHeight == (*bitmap).blueHeight) {
(*bitmap).width = (*bitmap).redWidth;
(*bitmap).height = (*bitmap).redHeight;
} else {
freeUnsignedCharArray(&(*bitmap).red);
freeUnsignedCharArray(&(*bitmap).green);
freeUnsignedCharArray(&(*bitmap).blue);
return INCONSISTENT_BITMAP_ERROR;
}
LOGI("decodeResizeImage. FINISHED");
return MEMORY_OK;
}
