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path: root/drivers/jpegd/image_loader_jpegd.cpp
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Diffstat (limited to 'drivers/jpegd/image_loader_jpegd.cpp')
-rw-r--r--drivers/jpegd/image_loader_jpegd.cpp108
1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/jpegd/image_loader_jpegd.cpp b/drivers/jpegd/image_loader_jpegd.cpp
new file mode 100644
index 0000000000..9d1263b81b
--- /dev/null
+++ b/drivers/jpegd/image_loader_jpegd.cpp
@@ -0,0 +1,108 @@
+/*************************************************/
+/* image_loader_jpg.cpp */
+/*************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/*************************************************/
+/* Source code within this file is: */
+/* (c) 2007-2016 Juan Linietsky, Ariel Manzur */
+/* All Rights Reserved. */
+/*************************************************/
+
+#include "image_loader_jpegd.h"
+
+#include "print_string.h"
+#include "os/os.h"
+#include "jpgd.h"
+#include <string.h>
+
+
+Error ImageLoaderJPG::load_image(Image *p_image,FileAccess *f) {
+
+
+ DVector<uint8_t> src_image;
+ int src_image_len = f->get_len();
+ ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);
+ src_image.resize(src_image_len);
+
+ DVector<uint8_t>::Write w = src_image.write();
+
+ f->get_buffer(&w[0],src_image_len);
+
+ f->close();
+
+
+
+ jpgd::jpeg_decoder_mem_stream mem_stream(w.ptr(),src_image_len);
+
+ jpgd::jpeg_decoder decoder(&mem_stream);
+
+ if (decoder.get_error_code() != jpgd::JPGD_SUCCESS) {
+ return ERR_CANT_OPEN;
+ }
+
+ const int image_width = decoder.get_width();
+ const int image_height = decoder.get_height();
+ int comps = decoder.get_num_components();
+ if (comps==3)
+ comps=4; //weird
+
+ if (decoder.begin_decoding() != jpgd::JPGD_SUCCESS)
+ return ERR_FILE_CORRUPT;
+
+ const int dst_bpl = image_width * comps;
+
+ DVector<uint8_t> data;
+
+ data.resize(dst_bpl * image_height);
+
+ DVector<uint8_t>::Write dw = data.write();
+
+ jpgd::uint8 *pImage_data = (jpgd::uint8*)dw.ptr();
+
+ for (int y = 0; y < image_height; y++)
+ {
+ const jpgd::uint8* pScan_line;
+ jpgd::uint scan_line_len;
+ if (decoder.decode((const void**)&pScan_line, &scan_line_len) != jpgd::JPGD_SUCCESS)
+ {
+ return ERR_FILE_CORRUPT;
+ }
+
+ jpgd::uint8 *pDst = pImage_data + y * dst_bpl;
+ memcpy(pDst, pScan_line, dst_bpl);
+
+
+ }
+
+
+ //all good
+
+ Image::Format fmt;
+ if (comps==1)
+ fmt=Image::FORMAT_GRAYSCALE;
+ else
+ fmt=Image::FORMAT_RGBA;
+
+ dw = DVector<uint8_t>::Write();
+ w = DVector<uint8_t>::Write();
+
+ p_image->create(image_width,image_height,0,fmt,data);
+
+ return OK;
+
+}
+
+void ImageLoaderJPG::get_recognized_extensions(List<String> *p_extensions) const {
+
+ p_extensions->push_back("jpg");
+ p_extensions->push_back("jpeg");
+}
+
+
+ImageLoaderJPG::ImageLoaderJPG() {
+
+
+}
+
+