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authorNicolas Pena <npm@chromium.org>2017-05-09 12:35:19 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-05-09 18:04:31 +0000
commit808828cb7b5539ab9a3f52b67ada6f26fa3c9d51 (patch)
tree120bbabbe48140b0bb78c705365dad39464dfd12 /core/fxcodec/lgif/cgifdecompressor.cpp
parentae4656edebaea24d18d11a845c663240bf8e9d2d (diff)
downloadpdfium-808828cb7b5539ab9a3f52b67ada6f26fa3c9d51.tar.xz
Cleanup of CGifDecompressor part 1
This CL changes the tag_gif_decompress_struct into CGifDecompressor. It cleans up a bunch of unnecessary function pointers and starts cleaning up the members of the new class. Change-Id: Id49cd8f5377dc8daaa15118551dadad4ddde7931 Reviewed-on: https://pdfium-review.googlesource.com/5170 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
Diffstat (limited to 'core/fxcodec/lgif/cgifdecompressor.cpp')
-rw-r--r--core/fxcodec/lgif/cgifdecompressor.cpp96
1 files changed, 96 insertions, 0 deletions
diff --git a/core/fxcodec/lgif/cgifdecompressor.cpp b/core/fxcodec/lgif/cgifdecompressor.cpp
new file mode 100644
index 0000000000..fb461f70e9
--- /dev/null
+++ b/core/fxcodec/lgif/cgifdecompressor.cpp
@@ -0,0 +1,96 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fxcodec/lgif/cgifdecompressor.h"
+
+#include <utility>
+
+#include "core/fxcodec/codec/ccodec_gifmodule.h"
+#include "core/fxcodec/lgif/fx_gif.h"
+#include "third_party/base/ptr_util.h"
+#include "third_party/base/stl_util.h"
+
+FXGIF_Context::FXGIF_Context() {}
+
+FXGIF_Context::~FXGIF_Context() {}
+
+CGifDecompressor::CGifDecompressor(FXGIF_Context* p, char* error_string)
+ : decode_status(GIF_D_STATUS_SIG),
+ err_ptr(error_string),
+ context_ptr(p),
+ cmt_data_ptr(new CFX_ByteString),
+ pt_ptr_arr_ptr(new std::vector<GifPlainText*>),
+ img_ptr_arr_ptr(new std::vector<GifImage*>) {}
+
+CGifDecompressor::~CGifDecompressor() {
+ // TODO(npm): fix ownership in CGifDecompressor to avoid all of the frees and
+ // deletes in here.
+ GifPalette* pGlobalPal = m_GlobalPalette.data();
+ if (img_ptr_arr_ptr) {
+ size_t size_img_arr = img_ptr_arr_ptr->size();
+ for (size_t i = 0; i < size_img_arr; i++) {
+ GifImage* p = (*img_ptr_arr_ptr)[i];
+ FX_Free(p->image_info_ptr);
+ FX_Free(p->image_gce_ptr);
+ FX_Free(p->image_row_buf);
+ if (p->local_pal_ptr && p->local_pal_ptr != pGlobalPal)
+ FX_Free(p->local_pal_ptr);
+ FX_Free(p);
+ }
+ img_ptr_arr_ptr->clear();
+ delete img_ptr_arr_ptr;
+ }
+ delete cmt_data_ptr;
+ FX_Free(gce_ptr);
+ if (pt_ptr_arr_ptr) {
+ size_t size_pt_arr = pt_ptr_arr_ptr->size();
+ for (size_t i = 0; i < size_pt_arr; i++) {
+ GifPlainText* p = (*pt_ptr_arr_ptr)[i];
+ FX_Free(p->gce_ptr);
+ FX_Free(p->pte_ptr);
+ delete p->string_ptr;
+ FX_Free(p);
+ }
+ pt_ptr_arr_ptr->clear();
+ delete pt_ptr_arr_ptr;
+ }
+}
+
+void CGifDecompressor::ErrorData(const char* err_msg) {
+ strncpy(err_ptr, err_msg, GIF_MAX_ERROR_SIZE - 1);
+ longjmp(jmpbuf, 1);
+}
+
+uint8_t* CGifDecompressor::AskBufForPal(int32_t pal_size) {
+ return context_ptr->parent_ptr->GetDelegate()->GifAskLocalPaletteBuf(
+ gif_get_frame_num(this), pal_size);
+}
+
+void CGifDecompressor::RecordCurrentPosition(uint32_t* cur_pos_ptr) {
+ context_ptr->parent_ptr->GetDelegate()->GifRecordCurrentPosition(
+ *cur_pos_ptr);
+}
+
+void CGifDecompressor::ReadScanline(int32_t row_num, uint8_t* row_buf) {
+ context_ptr->parent_ptr->GetDelegate()->GifReadScanline(row_num, row_buf);
+}
+
+bool CGifDecompressor::GetRecordPosition(uint32_t cur_pos,
+ int32_t left,
+ int32_t top,
+ int32_t width,
+ int32_t height,
+ int32_t pal_num,
+ void* pal_ptr,
+ int32_t delay_time,
+ bool user_input,
+ int32_t trans_index,
+ int32_t disposal_method,
+ bool interlace) {
+ return context_ptr->parent_ptr->GetDelegate()->GifInputRecordPositionBuf(
+ cur_pos, FX_RECT(left, top, left + width, top + height), pal_num, pal_ptr,
+ delay_time, user_input, trans_index, disposal_method, interlace);
+}