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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.h
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.h')
-rw-r--r--core/fxcodec/lgif/cgifdecompressor.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/core/fxcodec/lgif/cgifdecompressor.h b/core/fxcodec/lgif/cgifdecompressor.h
new file mode 100644
index 0000000000..32d9dc4563
--- /dev/null
+++ b/core/fxcodec/lgif/cgifdecompressor.h
@@ -0,0 +1,79 @@
+// 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
+
+#ifndef CORE_FXCODEC_LGIF_CGIFDECOMPRESSOR_H_
+#define CORE_FXCODEC_LGIF_CGIFDECOMPRESSOR_H_
+
+#include <setjmp.h>
+#include <memory>
+#include <vector>
+
+#include "core/fxcodec/lgif/fx_gif.h"
+#include "core/fxcrt/fx_basic.h"
+
+class CCodec_GifModule;
+
+// TODO(npm): Get rid of this, maybe rename CGifDecompressor->GifContext
+class FXGIF_Context {
+ public:
+ FXGIF_Context();
+ ~FXGIF_Context();
+
+ std::unique_ptr<CGifDecompressor> m_Gif;
+ CCodec_GifModule* parent_ptr;
+};
+
+class CGifDecompressor {
+ public:
+ CGifDecompressor(FXGIF_Context* p, char* error_string);
+ ~CGifDecompressor();
+
+ void ErrorData(const char* err_msg);
+ uint8_t* AskBufForPal(int32_t pal_size);
+ void RecordCurrentPosition(uint32_t* cur_pos_ptr);
+ void ReadScanline(int32_t row_num, uint8_t* row_buf);
+ bool 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);
+
+ jmp_buf jmpbuf;
+ std::vector<GifPalette> m_GlobalPalette;
+ int32_t global_pal_num;
+ uint32_t img_row_offset;
+ uint32_t img_row_avail_size;
+ uint32_t avail_in;
+ int32_t decode_status;
+ uint32_t skip_size;
+
+ char* err_ptr;
+ FXGIF_Context* context_ptr;
+ CFX_ByteString* cmt_data_ptr;
+ GifGCE* gce_ptr;
+ std::vector<GifPlainText*>* pt_ptr_arr_ptr;
+ uint8_t* next_in;
+ std::vector<GifImage*>* img_ptr_arr_ptr;
+ std::unique_ptr<CGifLZWDecoder> m_ImgDecoder;
+
+ int width;
+ int height;
+
+ uint8_t bc_index;
+ uint8_t pixel_aspect;
+ uint8_t global_sort_flag;
+ uint8_t global_color_resolution;
+ uint8_t img_pass_num;
+};
+
+#endif // CORE_FXCODEC_LGIF_CGIFDECOMPRESSOR_H_