8328999: Update GIFlib to 5.2.2
Reviewed-by: tr, dnguyen, prr
This commit is contained in:
parent
7a41a525de
commit
6969a9e0b2
src/java.desktop/share
legal
native/libsplashscreen/giflib
@ -1,4 +1,4 @@
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## GIFLIB v5.2.1
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## GIFLIB v5.2.2
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### GIFLIB License
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```
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@ -24,7 +24,27 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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https://sourceforge.net/p/giflib/code/ci/master/tree/openbsd-reallocarray.c
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tree/README
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Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
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== Authors ==
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Gershon Elber <gershon[AT]cs.technion.sc.il>
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original giflib code
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Toshio Kuratomi <toshio[AT]tiki-lounge.com>
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uncompressed gif writing code
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former maintainer
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Eric Raymond <esr[AT]snark.thyrsus.com>
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current as well as long time former maintainer of giflib code
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There have been many other contributors; see the attributions in the
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version-control history to learn more.
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tree/openbsd-reallocarray.c
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Copyright (C) 2008 Otto Moerbeek <otto@drijf.net>
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SPDX-License-Identifier: MIT
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```
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File diff suppressed because it is too large
Load Diff
@ -38,82 +38,80 @@ SPDX-License-Identifier: MIT
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/*****************************************************************************
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Return a string description of the last GIF error
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*****************************************************************************/
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const char *
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GifErrorString(int ErrorCode)
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{
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const char *GifErrorString(int ErrorCode) {
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const char *Err;
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switch (ErrorCode) {
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case E_GIF_ERR_OPEN_FAILED:
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case E_GIF_ERR_OPEN_FAILED:
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Err = "Failed to open given file";
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break;
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case E_GIF_ERR_WRITE_FAILED:
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case E_GIF_ERR_WRITE_FAILED:
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Err = "Failed to write to given file";
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break;
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case E_GIF_ERR_HAS_SCRN_DSCR:
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case E_GIF_ERR_HAS_SCRN_DSCR:
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Err = "Screen descriptor has already been set";
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break;
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case E_GIF_ERR_HAS_IMAG_DSCR:
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case E_GIF_ERR_HAS_IMAG_DSCR:
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Err = "Image descriptor is still active";
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break;
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case E_GIF_ERR_NO_COLOR_MAP:
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case E_GIF_ERR_NO_COLOR_MAP:
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Err = "Neither global nor local color map";
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break;
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case E_GIF_ERR_DATA_TOO_BIG:
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case E_GIF_ERR_DATA_TOO_BIG:
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Err = "Number of pixels bigger than width * height";
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break;
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case E_GIF_ERR_NOT_ENOUGH_MEM:
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case E_GIF_ERR_NOT_ENOUGH_MEM:
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Err = "Failed to allocate required memory";
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break;
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case E_GIF_ERR_DISK_IS_FULL:
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case E_GIF_ERR_DISK_IS_FULL:
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Err = "Write failed (disk full?)";
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break;
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case E_GIF_ERR_CLOSE_FAILED:
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case E_GIF_ERR_CLOSE_FAILED:
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Err = "Failed to close given file";
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break;
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case E_GIF_ERR_NOT_WRITEABLE:
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case E_GIF_ERR_NOT_WRITEABLE:
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Err = "Given file was not opened for write";
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break;
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case D_GIF_ERR_OPEN_FAILED:
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case D_GIF_ERR_OPEN_FAILED:
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Err = "Failed to open given file";
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break;
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case D_GIF_ERR_READ_FAILED:
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case D_GIF_ERR_READ_FAILED:
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Err = "Failed to read from given file";
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break;
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case D_GIF_ERR_NOT_GIF_FILE:
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case D_GIF_ERR_NOT_GIF_FILE:
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Err = "Data is not in GIF format";
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break;
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case D_GIF_ERR_NO_SCRN_DSCR:
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case D_GIF_ERR_NO_SCRN_DSCR:
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Err = "No screen descriptor detected";
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break;
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case D_GIF_ERR_NO_IMAG_DSCR:
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case D_GIF_ERR_NO_IMAG_DSCR:
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Err = "No Image Descriptor detected";
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break;
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case D_GIF_ERR_NO_COLOR_MAP:
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case D_GIF_ERR_NO_COLOR_MAP:
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Err = "Neither global nor local color map";
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break;
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case D_GIF_ERR_WRONG_RECORD:
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case D_GIF_ERR_WRONG_RECORD:
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Err = "Wrong record type detected";
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break;
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case D_GIF_ERR_DATA_TOO_BIG:
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case D_GIF_ERR_DATA_TOO_BIG:
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Err = "Number of pixels bigger than width * height";
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break;
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case D_GIF_ERR_NOT_ENOUGH_MEM:
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case D_GIF_ERR_NOT_ENOUGH_MEM:
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Err = "Failed to allocate required memory";
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break;
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case D_GIF_ERR_CLOSE_FAILED:
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case D_GIF_ERR_CLOSE_FAILED:
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Err = "Failed to close given file";
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break;
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case D_GIF_ERR_NOT_READABLE:
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case D_GIF_ERR_NOT_READABLE:
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Err = "Given file was not opened for read";
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break;
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case D_GIF_ERR_IMAGE_DEFECT:
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case D_GIF_ERR_IMAGE_DEFECT:
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Err = "Image is defective, decoding aborted";
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break;
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case D_GIF_ERR_EOF_TOO_SOON:
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case D_GIF_ERR_EOF_TOO_SOON:
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Err = "Image EOF detected before image complete";
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break;
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default:
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default:
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Err = NULL;
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break;
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}
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@ -33,27 +33,25 @@ SPDX-License-Identifier: MIT
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#ifndef _GIF_HASH_H_
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#define _GIF_HASH_H_
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/** Begin JDK modifications to support building on Windows **/
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#ifndef _WIN32
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#include <unistd.h>
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#endif
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/** End JDK modifications to support building on Windows **/
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#endif /* _WIN32 */
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#include <stdint.h>
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#define HT_SIZE 8192 /* 12bits = 4096 or twice as big! */
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#define HT_KEY_MASK 0x1FFF /* 13bits keys */
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#define HT_KEY_NUM_BITS 13 /* 13bits keys */
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#define HT_MAX_KEY 8191 /* 13bits - 1, maximal code possible */
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#define HT_MAX_CODE 4095 /* Biggest code possible in 12 bits. */
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#define HT_SIZE 8192 /* 12bits = 4096 or twice as big! */
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#define HT_KEY_MASK 0x1FFF /* 13bits keys */
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#define HT_KEY_NUM_BITS 13 /* 13bits keys */
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#define HT_MAX_KEY 8191 /* 13bits - 1, maximal code possible */
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#define HT_MAX_CODE 4095 /* Biggest code possible in 12 bits. */
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/* The 32 bits of the long are divided into two parts for the key & code: */
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/* 1. The code is 12 bits as our compression algorithm is limited to 12bits */
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/* 2. The key is 12 bits Prefix code + 8 bit new char or 20 bits. */
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/* 2. The key is 12 bits Prefix code + 8 bit new char or 20 bits. */
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/* The key is the upper 20 bits. The code is the lower 12. */
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#define HT_GET_KEY(l) (l >> 12)
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#define HT_GET_CODE(l) (l & 0x0FFF)
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#define HT_PUT_KEY(l) (l << 12)
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#define HT_PUT_CODE(l) (l & 0x0FFF)
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#define HT_GET_KEY(l) (l >> 12)
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#define HT_GET_CODE(l) (l & 0x0FFF)
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#define HT_PUT_KEY(l) (l << 12)
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#define HT_PUT_CODE(l) (l & 0x0FFF)
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typedef struct GifHashTableType {
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uint32_t HTable[HT_SIZE];
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@ -39,27 +39,19 @@ extern "C" {
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#define GIFLIB_MAJOR 5
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#define GIFLIB_MINOR 2
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#define GIFLIB_RELEASE 1
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#define GIFLIB_RELEASE 2
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#define GIF_ERROR 0
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#define GIF_OK 1
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#define GIF_ERROR 0
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#define GIF_OK 1
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#include <stdbool.h>
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#include <stddef.h>
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/** Begin JDK modifications to support building using old compilers**/
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//#include <stdbool.h>
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#ifdef bool
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#undef bool
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#endif
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typedef int bool;
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#define false 0
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#define true 1
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/** End JDK modifications to support building using old compilers**/
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#define GIF_STAMP "GIFVER" /* First chars in file - GIF stamp. */
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#define GIF_STAMP "GIFVER" /* First chars in file - GIF stamp. */
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#define GIF_STAMP_LEN sizeof(GIF_STAMP) - 1
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#define GIF_VERSION_POS 3 /* Version first character in stamp. */
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#define GIF87_STAMP "GIF87a" /* First chars in file - GIF stamp. */
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#define GIF89_STAMP "GIF89a" /* First chars in file - GIF stamp. */
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#define GIF_VERSION_POS 3 /* Version first character in stamp. */
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#define GIF87_STAMP "GIF87a" /* First chars in file - GIF stamp. */
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#define GIF89_STAMP "GIF89a" /* First chars in file - GIF stamp. */
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typedef unsigned char GifPixelType;
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typedef unsigned char *GifRowType;
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@ -75,24 +67,24 @@ typedef struct ColorMapObject {
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int ColorCount;
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int BitsPerPixel;
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bool SortFlag;
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GifColorType *Colors; /* on malloc(3) heap */
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GifColorType *Colors; /* on malloc(3) heap */
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} ColorMapObject;
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typedef struct GifImageDesc {
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GifWord Left, Top, Width, Height; /* Current image dimensions. */
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bool Interlace; /* Sequential/Interlaced lines. */
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ColorMapObject *ColorMap; /* The local color map */
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GifWord Left, Top, Width, Height; /* Current image dimensions. */
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bool Interlace; /* Sequential/Interlaced lines. */
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ColorMapObject *ColorMap; /* The local color map */
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} GifImageDesc;
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typedef struct ExtensionBlock {
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int ByteCount;
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GifByteType *Bytes; /* on malloc(3) heap */
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int Function; /* The block function code */
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#define CONTINUE_EXT_FUNC_CODE 0x00 /* continuation subblock */
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#define COMMENT_EXT_FUNC_CODE 0xfe /* comment */
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#define GRAPHICS_EXT_FUNC_CODE 0xf9 /* graphics control (GIF89) */
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#define PLAINTEXT_EXT_FUNC_CODE 0x01 /* plaintext */
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#define APPLICATION_EXT_FUNC_CODE 0xff /* application block (GIF89) */
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GifByteType *Bytes; /* on malloc(3) heap */
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int Function; /* The block function code */
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#define CONTINUE_EXT_FUNC_CODE 0x00 /* continuation subblock */
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#define COMMENT_EXT_FUNC_CODE 0xfe /* comment */
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#define GRAPHICS_EXT_FUNC_CODE 0xf9 /* graphics control (GIF89) */
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#define PLAINTEXT_EXT_FUNC_CODE 0x01 /* plaintext */
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#define APPLICATION_EXT_FUNC_CODE 0xff /* application block (GIF89) */
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} ExtensionBlock;
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typedef struct SavedImage {
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@ -103,22 +95,22 @@ typedef struct SavedImage {
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} SavedImage;
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typedef struct GifFileType {
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GifWord SWidth, SHeight; /* Size of virtual canvas */
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GifWord SColorResolution; /* How many colors can we generate? */
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GifWord SBackGroundColor; /* Background color for virtual canvas */
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GifByteType AspectByte; /* Used to compute pixel aspect ratio */
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ColorMapObject *SColorMap; /* Global colormap, NULL if nonexistent. */
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int ImageCount; /* Number of current image (both APIs) */
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GifImageDesc Image; /* Current image (low-level API) */
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SavedImage *SavedImages; /* Image sequence (high-level API) */
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int ExtensionBlockCount; /* Count extensions past last image */
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GifWord SWidth, SHeight; /* Size of virtual canvas */
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GifWord SColorResolution; /* How many colors can we generate? */
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GifWord SBackGroundColor; /* Background color for virtual canvas */
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GifByteType AspectByte; /* Used to compute pixel aspect ratio */
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ColorMapObject *SColorMap; /* Global colormap, NULL if nonexistent. */
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int ImageCount; /* Number of current image (both APIs) */
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GifImageDesc Image; /* Current image (low-level API) */
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SavedImage *SavedImages; /* Image sequence (high-level API) */
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int ExtensionBlockCount; /* Count extensions past last image */
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ExtensionBlock *ExtensionBlocks; /* Extensions past last image */
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int Error; /* Last error condition reported */
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void *UserData; /* hook to attach user data (TVT) */
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void *Private; /* Don't mess with this! */
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} GifFileType;
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#define GIF_ASPECT_RATIO(n) ((n)+15.0/64.0)
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#define GIF_ASPECT_RATIO(n) ((n) + 15.0 / 64.0)
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typedef enum {
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UNDEFINED_RECORD_TYPE,
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@ -129,12 +121,12 @@ typedef enum {
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} GifRecordType;
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/* func type to read gif data from arbitrary sources (TVT) */
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typedef int (*InputFunc) (GifFileType *, GifByteType *, int);
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typedef int (*InputFunc)(GifFileType *, GifByteType *, int);
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/* func type to write gif data to arbitrary targets.
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* Returns count of bytes written. (MRB)
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*/
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typedef int (*OutputFunc) (GifFileType *, const GifByteType *, int);
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typedef int (*OutputFunc)(GifFileType *, const GifByteType *, int);
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/******************************************************************************
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GIF89 structures
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@ -142,14 +134,14 @@ typedef int (*OutputFunc) (GifFileType *, const GifByteType *, int);
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typedef struct GraphicsControlBlock {
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int DisposalMode;
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#define DISPOSAL_UNSPECIFIED 0 /* No disposal specified. */
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#define DISPOSE_DO_NOT 1 /* Leave image in place */
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#define DISPOSE_BACKGROUND 2 /* Set area too background color */
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#define DISPOSE_PREVIOUS 3 /* Restore to previous content */
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bool UserInputFlag; /* User confirmation required before disposal */
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int DelayTime; /* pre-display delay in 0.01sec units */
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int TransparentColor; /* Palette index for transparency, -1 if none */
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#define NO_TRANSPARENT_COLOR -1
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#define DISPOSAL_UNSPECIFIED 0 /* No disposal specified. */
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#define DISPOSE_DO_NOT 1 /* Leave image in place */
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#define DISPOSE_BACKGROUND 2 /* Set area too background color */
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#define DISPOSE_PREVIOUS 3 /* Restore to previous content */
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bool UserInputFlag; /* User confirmation required before disposal */
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int DelayTime; /* pre-display delay in 0.01sec units */
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int TransparentColor; /* Palette index for transparency, -1 if none */
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#define NO_TRANSPARENT_COLOR -1
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} GraphicsControlBlock;
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/******************************************************************************
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@ -161,49 +153,44 @@ GifFileType *EGifOpenFileName(const char *GifFileName,
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const bool GifTestExistence, int *Error);
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GifFileType *EGifOpenFileHandle(const int GifFileHandle, int *Error);
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GifFileType *EGifOpen(void *userPtr, OutputFunc writeFunc, int *Error);
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int EGifSpew(GifFileType * GifFile);
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int EGifSpew(GifFileType *GifFile);
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const char *EGifGetGifVersion(GifFileType *GifFile); /* new in 5.x */
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int EGifCloseFile(GifFileType *GifFile, int *ErrorCode);
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#define E_GIF_SUCCEEDED 0
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#define E_GIF_ERR_OPEN_FAILED 1 /* And EGif possible errors. */
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#define E_GIF_ERR_WRITE_FAILED 2
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#define E_GIF_ERR_HAS_SCRN_DSCR 3
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#define E_GIF_ERR_HAS_IMAG_DSCR 4
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#define E_GIF_ERR_NO_COLOR_MAP 5
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#define E_GIF_ERR_DATA_TOO_BIG 6
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#define E_GIF_SUCCEEDED 0
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#define E_GIF_ERR_OPEN_FAILED 1 /* And EGif possible errors. */
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#define E_GIF_ERR_WRITE_FAILED 2
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#define E_GIF_ERR_HAS_SCRN_DSCR 3
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#define E_GIF_ERR_HAS_IMAG_DSCR 4
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#define E_GIF_ERR_NO_COLOR_MAP 5
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#define E_GIF_ERR_DATA_TOO_BIG 6
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#define E_GIF_ERR_NOT_ENOUGH_MEM 7
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#define E_GIF_ERR_DISK_IS_FULL 8
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#define E_GIF_ERR_CLOSE_FAILED 9
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#define E_GIF_ERR_NOT_WRITEABLE 10
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#define E_GIF_ERR_DISK_IS_FULL 8
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#define E_GIF_ERR_CLOSE_FAILED 9
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#define E_GIF_ERR_NOT_WRITEABLE 10
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/* These are legacy. You probably do not want to call them directly */
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int EGifPutScreenDesc(GifFileType *GifFile,
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const int GifWidth, const int GifHeight,
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const int GifColorRes,
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int EGifPutScreenDesc(GifFileType *GifFile, const int GifWidth,
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const int GifHeight, const int GifColorRes,
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const int GifBackGround,
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const ColorMapObject *GifColorMap);
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int EGifPutImageDesc(GifFileType *GifFile,
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const int GifLeft, const int GifTop,
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int EGifPutImageDesc(GifFileType *GifFile, const int GifLeft, const int GifTop,
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const int GifWidth, const int GifHeight,
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const bool GifInterlace,
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const ColorMapObject *GifColorMap);
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void EGifSetGifVersion(GifFileType *GifFile, const bool gif89);
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int EGifPutLine(GifFileType *GifFile, GifPixelType *GifLine,
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int GifLineLen);
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int EGifPutLine(GifFileType *GifFile, GifPixelType *GifLine, int GifLineLen);
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int EGifPutPixel(GifFileType *GifFile, const GifPixelType GifPixel);
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int EGifPutComment(GifFileType *GifFile, const char *GifComment);
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int EGifPutExtensionLeader(GifFileType *GifFile, const int GifExtCode);
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int EGifPutExtensionBlock(GifFileType *GifFile,
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const int GifExtLen, const void *GifExtension);
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int EGifPutExtensionBlock(GifFileType *GifFile, const int GifExtLen,
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const void *GifExtension);
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int EGifPutExtensionTrailer(GifFileType *GifFile);
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int EGifPutExtension(GifFileType *GifFile, const int GifExtCode,
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const int GifExtLen,
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const void *GifExtension);
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const int GifExtLen, const void *GifExtension);
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int EGifPutCode(GifFileType *GifFile, int GifCodeSize,
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const GifByteType *GifCodeBlock);
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int EGifPutCodeNext(GifFileType *GifFile,
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const GifByteType *GifCodeBlock);
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int EGifPutCodeNext(GifFileType *GifFile, const GifByteType *GifCodeBlock);
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/******************************************************************************
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GIF decoding routines
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@ -212,24 +199,25 @@ int EGifPutCodeNext(GifFileType *GifFile,
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/* Main entry points */
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GifFileType *DGifOpenFileName(const char *GifFileName, int *Error);
|
||||
GifFileType *DGifOpenFileHandle(int GifFileHandle, int *Error);
|
||||
int DGifSlurp(GifFileType * GifFile);
|
||||
GifFileType *DGifOpen(void *userPtr, InputFunc readFunc, int *Error); /* new one (TVT) */
|
||||
int DGifCloseFile(GifFileType * GifFile, int *ErrorCode);
|
||||
int DGifSlurp(GifFileType *GifFile);
|
||||
GifFileType *DGifOpen(void *userPtr, InputFunc readFunc,
|
||||
int *Error); /* new one (TVT) */
|
||||
int DGifCloseFile(GifFileType *GifFile, int *ErrorCode);
|
||||
|
||||
#define D_GIF_SUCCEEDED 0
|
||||
#define D_GIF_ERR_OPEN_FAILED 101 /* And DGif possible errors. */
|
||||
#define D_GIF_ERR_READ_FAILED 102
|
||||
#define D_GIF_ERR_NOT_GIF_FILE 103
|
||||
#define D_GIF_ERR_NO_SCRN_DSCR 104
|
||||
#define D_GIF_ERR_NO_IMAG_DSCR 105
|
||||
#define D_GIF_ERR_NO_COLOR_MAP 106
|
||||
#define D_GIF_ERR_WRONG_RECORD 107
|
||||
#define D_GIF_ERR_DATA_TOO_BIG 108
|
||||
#define D_GIF_SUCCEEDED 0
|
||||
#define D_GIF_ERR_OPEN_FAILED 101 /* And DGif possible errors. */
|
||||
#define D_GIF_ERR_READ_FAILED 102
|
||||
#define D_GIF_ERR_NOT_GIF_FILE 103
|
||||
#define D_GIF_ERR_NO_SCRN_DSCR 104
|
||||
#define D_GIF_ERR_NO_IMAG_DSCR 105
|
||||
#define D_GIF_ERR_NO_COLOR_MAP 106
|
||||
#define D_GIF_ERR_WRONG_RECORD 107
|
||||
#define D_GIF_ERR_DATA_TOO_BIG 108
|
||||
#define D_GIF_ERR_NOT_ENOUGH_MEM 109
|
||||
#define D_GIF_ERR_CLOSE_FAILED 110
|
||||
#define D_GIF_ERR_NOT_READABLE 111
|
||||
#define D_GIF_ERR_IMAGE_DEFECT 112
|
||||
#define D_GIF_ERR_EOF_TOO_SOON 113
|
||||
#define D_GIF_ERR_CLOSE_FAILED 110
|
||||
#define D_GIF_ERR_NOT_READABLE 111
|
||||
#define D_GIF_ERR_IMAGE_DEFECT 112
|
||||
#define D_GIF_ERR_EOF_TOO_SOON 113
|
||||
|
||||
/* These are legacy. You probably do not want to call them directly */
|
||||
int DGifGetScreenDesc(GifFileType *GifFile);
|
||||
@ -247,11 +235,10 @@ int DGifGetCodeNext(GifFileType *GifFile, GifByteType **GifCodeBlock);
|
||||
int DGifGetLZCodes(GifFileType *GifFile, int *GifCode);
|
||||
const char *DGifGetGifVersion(GifFileType *GifFile);
|
||||
|
||||
|
||||
/******************************************************************************
|
||||
Error handling and reporting.
|
||||
******************************************************************************/
|
||||
extern const char *GifErrorString(int ErrorCode); /* new in 2012 - ESR */
|
||||
extern const char *GifErrorString(int ErrorCode); /* new in 2012 - ESR */
|
||||
|
||||
/*****************************************************************************
|
||||
Everything below this point is new after version 1.2, supporting `slurp
|
||||
@ -263,26 +250,26 @@ extern const char *GifErrorString(int ErrorCode); /* new in 2012 - ESR */
|
||||
******************************************************************************/
|
||||
|
||||
extern ColorMapObject *GifMakeMapObject(int ColorCount,
|
||||
const GifColorType *ColorMap);
|
||||
const GifColorType *ColorMap);
|
||||
extern void GifFreeMapObject(ColorMapObject *Object);
|
||||
extern ColorMapObject *GifUnionColorMap(const ColorMapObject *ColorIn1,
|
||||
const ColorMapObject *ColorIn2,
|
||||
GifPixelType ColorTransIn2[]);
|
||||
const ColorMapObject *ColorIn2,
|
||||
GifPixelType ColorTransIn2[]);
|
||||
extern int GifBitSize(int n);
|
||||
|
||||
/******************************************************************************
|
||||
Support for the in-core structures allocation (slurp mode).
|
||||
******************************************************************************/
|
||||
|
||||
extern void GifApplyTranslation(SavedImage *Image, GifPixelType Translation[]);
|
||||
extern void GifApplyTranslation(SavedImage *Image,
|
||||
const GifPixelType Translation[]);
|
||||
extern int GifAddExtensionBlock(int *ExtensionBlock_Count,
|
||||
ExtensionBlock **ExtensionBlocks,
|
||||
int Function,
|
||||
ExtensionBlock **ExtensionBlocks, int Function,
|
||||
unsigned int Len, unsigned char ExtData[]);
|
||||
extern void GifFreeExtensions(int *ExtensionBlock_Count,
|
||||
ExtensionBlock **ExtensionBlocks);
|
||||
extern SavedImage *GifMakeSavedImage(GifFileType *GifFile,
|
||||
const SavedImage *CopyFrom);
|
||||
const SavedImage *CopyFrom);
|
||||
extern void GifFreeSavedImages(GifFileType *GifFile);
|
||||
|
||||
/******************************************************************************
|
||||
@ -295,37 +282,31 @@ int DGifExtensionToGCB(const size_t GifExtensionLength,
|
||||
size_t EGifGCBToExtension(const GraphicsControlBlock *GCB,
|
||||
GifByteType *GifExtension);
|
||||
|
||||
int DGifSavedExtensionToGCB(GifFileType *GifFile,
|
||||
int ImageIndex,
|
||||
int DGifSavedExtensionToGCB(GifFileType *GifFile, int ImageIndex,
|
||||
GraphicsControlBlock *GCB);
|
||||
int EGifGCBToSavedExtension(const GraphicsControlBlock *GCB,
|
||||
GifFileType *GifFile,
|
||||
int ImageIndex);
|
||||
GifFileType *GifFile, int ImageIndex);
|
||||
|
||||
/******************************************************************************
|
||||
The library's internal utility font
|
||||
******************************************************************************/
|
||||
|
||||
#define GIF_FONT_WIDTH 8
|
||||
#define GIF_FONT_WIDTH 8
|
||||
#define GIF_FONT_HEIGHT 8
|
||||
extern const unsigned char GifAsciiTable8x8[][GIF_FONT_WIDTH];
|
||||
|
||||
extern void GifDrawText8x8(SavedImage *Image,
|
||||
const int x, const int y,
|
||||
const char *legend, const int color);
|
||||
extern void GifDrawText8x8(SavedImage *Image, const int x, const int y,
|
||||
const char *legend, const int color);
|
||||
|
||||
extern void GifDrawBox(SavedImage *Image,
|
||||
const int x, const int y,
|
||||
const int w, const int d, const int color);
|
||||
extern void GifDrawBox(SavedImage *Image, const int x, const int y, const int w,
|
||||
const int d, const int color);
|
||||
|
||||
extern void GifDrawRectangle(SavedImage *Image,
|
||||
const int x, const int y,
|
||||
const int w, const int d, const int color);
|
||||
extern void GifDrawRectangle(SavedImage *Image, const int x, const int y,
|
||||
const int w, const int d, const int color);
|
||||
|
||||
extern void GifDrawBoxedText8x8(SavedImage *Image,
|
||||
const int x, const int y,
|
||||
const char *legend,
|
||||
const int border, const int bg, const int fg);
|
||||
extern void GifDrawBoxedText8x8(SavedImage *Image, const int x, const int y,
|
||||
const char *legend, const int border,
|
||||
const int bg, const int fg);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
|
@ -33,52 +33,54 @@ SPDX-License-Identifier: MIT
|
||||
#ifndef _GIF_LIB_PRIVATE_H
|
||||
#define _GIF_LIB_PRIVATE_H
|
||||
|
||||
#include "gif_lib.h"
|
||||
#include "gif_hash.h"
|
||||
#include "gif_lib.h"
|
||||
|
||||
#ifndef SIZE_MAX
|
||||
#define SIZE_MAX UINTPTR_MAX
|
||||
#define SIZE_MAX UINTPTR_MAX
|
||||
#endif
|
||||
|
||||
#define EXTENSION_INTRODUCER 0x21
|
||||
#define DESCRIPTOR_INTRODUCER 0x2c
|
||||
#define TERMINATOR_INTRODUCER 0x3b
|
||||
#define EXTENSION_INTRODUCER 0x21
|
||||
#define DESCRIPTOR_INTRODUCER 0x2c
|
||||
#define TERMINATOR_INTRODUCER 0x3b
|
||||
|
||||
#define LZ_MAX_CODE 4095 /* Biggest code possible in 12 bits. */
|
||||
#define LZ_BITS 12
|
||||
#define LZ_MAX_CODE 4095 /* Biggest code possible in 12 bits. */
|
||||
#define LZ_BITS 12
|
||||
|
||||
#define FLUSH_OUTPUT 4096 /* Impossible code, to signal flush. */
|
||||
#define FIRST_CODE 4097 /* Impossible code, to signal first. */
|
||||
#define NO_SUCH_CODE 4098 /* Impossible code, to signal empty. */
|
||||
#define FLUSH_OUTPUT 4096 /* Impossible code, to signal flush. */
|
||||
#define FIRST_CODE 4097 /* Impossible code, to signal first. */
|
||||
#define NO_SUCH_CODE 4098 /* Impossible code, to signal empty. */
|
||||
|
||||
#define FILE_STATE_WRITE 0x01
|
||||
#define FILE_STATE_SCREEN 0x02
|
||||
#define FILE_STATE_IMAGE 0x04
|
||||
#define FILE_STATE_READ 0x08
|
||||
#define FILE_STATE_WRITE 0x01
|
||||
#define FILE_STATE_SCREEN 0x02
|
||||
#define FILE_STATE_IMAGE 0x04
|
||||
#define FILE_STATE_READ 0x08
|
||||
|
||||
#define IS_READABLE(Private) (Private->FileState & FILE_STATE_READ)
|
||||
#define IS_WRITEABLE(Private) (Private->FileState & FILE_STATE_WRITE)
|
||||
#define IS_READABLE(Private) (Private->FileState & FILE_STATE_READ)
|
||||
#define IS_WRITEABLE(Private) (Private->FileState & FILE_STATE_WRITE)
|
||||
|
||||
typedef struct GifFilePrivateType {
|
||||
GifWord FileState, FileHandle, /* Where all this data goes to! */
|
||||
BitsPerPixel, /* Bits per pixel (Codes uses at least this + 1). */
|
||||
ClearCode, /* The CLEAR LZ code. */
|
||||
EOFCode, /* The EOF LZ code. */
|
||||
RunningCode, /* The next code algorithm can generate. */
|
||||
RunningBits, /* The number of bits required to represent RunningCode. */
|
||||
MaxCode1, /* 1 bigger than max. possible code, in RunningBits bits. */
|
||||
LastCode, /* The code before the current code. */
|
||||
CrntCode, /* Current algorithm code. */
|
||||
StackPtr, /* For character stack (see below). */
|
||||
CrntShiftState; /* Number of bits in CrntShiftDWord. */
|
||||
unsigned long CrntShiftDWord; /* For bytes decomposition into codes. */
|
||||
unsigned long PixelCount; /* Number of pixels in image. */
|
||||
FILE *File; /* File as stream. */
|
||||
InputFunc Read; /* function to read gif input (TVT) */
|
||||
OutputFunc Write; /* function to write gif output (MRB) */
|
||||
GifByteType Buf[256]; /* Compressed input is buffered here. */
|
||||
GifWord FileState, FileHandle, /* Where all this data goes to! */
|
||||
BitsPerPixel, /* Bits per pixel (Codes uses at least this + 1). */
|
||||
ClearCode, /* The CLEAR LZ code. */
|
||||
EOFCode, /* The EOF LZ code. */
|
||||
RunningCode, /* The next code algorithm can generate. */
|
||||
RunningBits, /* The number of bits required to represent
|
||||
RunningCode. */
|
||||
MaxCode1, /* 1 bigger than max. possible code, in RunningBits bits.
|
||||
*/
|
||||
LastCode, /* The code before the current code. */
|
||||
CrntCode, /* Current algorithm code. */
|
||||
StackPtr, /* For character stack (see below). */
|
||||
CrntShiftState; /* Number of bits in CrntShiftDWord. */
|
||||
unsigned long CrntShiftDWord; /* For bytes decomposition into codes. */
|
||||
unsigned long PixelCount; /* Number of pixels in image. */
|
||||
FILE *File; /* File as stream. */
|
||||
InputFunc Read; /* function to read gif input (TVT) */
|
||||
OutputFunc Write; /* function to write gif output (MRB) */
|
||||
GifByteType Buf[256]; /* Compressed input is buffered here. */
|
||||
GifByteType Stack[LZ_MAX_CODE]; /* Decoded pixels are stacked here. */
|
||||
GifByteType Suffix[LZ_MAX_CODE + 1]; /* So we can trace the codes. */
|
||||
GifByteType Suffix[LZ_MAX_CODE + 1]; /* So we can trace the codes. */
|
||||
GifPrefixType Prefix[LZ_MAX_CODE + 1];
|
||||
GifHashTableType *HashTable;
|
||||
bool gif89;
|
||||
|
@ -30,59 +30,59 @@ SPDX-License-Identifier: MIT
|
||||
|
||||
****************************************************************************/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "gif_lib.h"
|
||||
#include "gif_lib_private.h"
|
||||
|
||||
#define MAX(x, y) (((x) > (y)) ? (x) : (y))
|
||||
#define MAX(x, y) (((x) > (y)) ? (x) : (y))
|
||||
|
||||
/******************************************************************************
|
||||
Miscellaneous utility functions
|
||||
******************************************************************************/
|
||||
|
||||
/* return smallest bitfield size n will fit in */
|
||||
int
|
||||
GifBitSize(int n)
|
||||
{
|
||||
int GifBitSize(int n) {
|
||||
register int i;
|
||||
|
||||
for (i = 1; i <= 8; i++)
|
||||
if ((1 << i) >= n)
|
||||
for (i = 1; i <= 8; i++) {
|
||||
if ((1 << i) >= n) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
return (i);
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
Color map object functions
|
||||
Color map object functions
|
||||
******************************************************************************/
|
||||
|
||||
/*
|
||||
* Allocate a color map of given size; initialize with contents of
|
||||
* ColorMap if that pointer is non-NULL.
|
||||
*/
|
||||
ColorMapObject *
|
||||
GifMakeMapObject(int ColorCount, const GifColorType *ColorMap)
|
||||
{
|
||||
ColorMapObject *GifMakeMapObject(int ColorCount, const GifColorType *ColorMap) {
|
||||
ColorMapObject *Object;
|
||||
|
||||
/*** FIXME: Our ColorCount has to be a power of two. Is it necessary to
|
||||
* make the user know that or should we automatically round up instead? */
|
||||
* make the user know that or should we automatically round up instead?
|
||||
*/
|
||||
if (ColorCount != (1 << GifBitSize(ColorCount))) {
|
||||
return ((ColorMapObject *) NULL);
|
||||
return ((ColorMapObject *)NULL);
|
||||
}
|
||||
|
||||
Object = (ColorMapObject *)malloc(sizeof(ColorMapObject));
|
||||
if (Object == (ColorMapObject *) NULL) {
|
||||
return ((ColorMapObject *) NULL);
|
||||
if (Object == (ColorMapObject *)NULL) {
|
||||
return ((ColorMapObject *)NULL);
|
||||
}
|
||||
|
||||
Object->Colors = (GifColorType *)calloc(ColorCount, sizeof(GifColorType));
|
||||
if (Object->Colors == (GifColorType *) NULL) {
|
||||
Object->Colors =
|
||||
(GifColorType *)calloc(ColorCount, sizeof(GifColorType));
|
||||
if (Object->Colors == (GifColorType *)NULL) {
|
||||
free(Object);
|
||||
return ((ColorMapObject *) NULL);
|
||||
return ((ColorMapObject *)NULL);
|
||||
}
|
||||
|
||||
Object->ColorCount = ColorCount;
|
||||
@ -90,19 +90,17 @@ GifMakeMapObject(int ColorCount, const GifColorType *ColorMap)
|
||||
Object->SortFlag = false;
|
||||
|
||||
if (ColorMap != NULL) {
|
||||
memcpy((char *)Object->Colors,
|
||||
(char *)ColorMap, ColorCount * sizeof(GifColorType));
|
||||
memcpy((char *)Object->Colors, (char *)ColorMap,
|
||||
ColorCount * sizeof(GifColorType));
|
||||
}
|
||||
|
||||
return (Object);
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
Free a color map object
|
||||
Free a color map object
|
||||
*******************************************************************************/
|
||||
void
|
||||
GifFreeMapObject(ColorMapObject *Object)
|
||||
{
|
||||
void GifFreeMapObject(ColorMapObject *Object) {
|
||||
if (Object != NULL) {
|
||||
(void)free(Object->Colors);
|
||||
(void)free(Object);
|
||||
@ -110,17 +108,14 @@ GifFreeMapObject(ColorMapObject *Object)
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
void
|
||||
DumpColorMap(ColorMapObject *Object,
|
||||
FILE * fp)
|
||||
{
|
||||
void DumpColorMap(ColorMapObject *Object, FILE *fp) {
|
||||
if (Object != NULL) {
|
||||
int i, j, Len = Object->ColorCount;
|
||||
|
||||
for (i = 0; i < Len; i += 4) {
|
||||
for (j = 0; j < 4 && j < Len; j++) {
|
||||
(void)fprintf(fp, "%3d: %02x %02x %02x ", i + j,
|
||||
Object->Colors[i + j].Red,
|
||||
(void)fprintf(fp, "%3d: %02x %02x %02x ",
|
||||
i + j, Object->Colors[i + j].Red,
|
||||
Object->Colors[i + j].Green,
|
||||
Object->Colors[i + j].Blue);
|
||||
}
|
||||
@ -137,11 +132,9 @@ DumpColorMap(ColorMapObject *Object,
|
||||
copied iff they didn't exist before. ColorTransIn2 maps the old
|
||||
ColorIn2 into the ColorUnion color map table./
|
||||
*******************************************************************************/
|
||||
ColorMapObject *
|
||||
GifUnionColorMap(const ColorMapObject *ColorIn1,
|
||||
const ColorMapObject *ColorIn2,
|
||||
GifPixelType ColorTransIn2[])
|
||||
{
|
||||
ColorMapObject *GifUnionColorMap(const ColorMapObject *ColorIn1,
|
||||
const ColorMapObject *ColorIn2,
|
||||
GifPixelType ColorTransIn2[]) {
|
||||
int i, j, CrntSlot, RoundUpTo, NewGifBitSize;
|
||||
ColorMapObject *ColorUnion;
|
||||
|
||||
@ -152,17 +145,19 @@ GifUnionColorMap(const ColorMapObject *ColorIn1,
|
||||
*/
|
||||
|
||||
/* Allocate table which will hold the result for sure. */
|
||||
ColorUnion = GifMakeMapObject(MAX(ColorIn1->ColorCount,
|
||||
ColorIn2->ColorCount) * 2, NULL);
|
||||
ColorUnion = GifMakeMapObject(
|
||||
MAX(ColorIn1->ColorCount, ColorIn2->ColorCount) * 2, NULL);
|
||||
|
||||
if (ColorUnion == NULL)
|
||||
if (ColorUnion == NULL) {
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
/*
|
||||
* Copy ColorIn1 to ColorUnion.
|
||||
*/
|
||||
for (i = 0; i < ColorIn1->ColorCount; i++)
|
||||
for (i = 0; i < ColorIn1->ColorCount; i++) {
|
||||
ColorUnion->Colors[i] = ColorIn1->Colors[i];
|
||||
}
|
||||
CrntSlot = ColorIn1->ColorCount;
|
||||
|
||||
/*
|
||||
@ -172,22 +167,25 @@ GifUnionColorMap(const ColorMapObject *ColorIn1,
|
||||
* of table 1. This is very useful if your display is limited to
|
||||
* 16 colors.
|
||||
*/
|
||||
while (ColorIn1->Colors[CrntSlot - 1].Red == 0
|
||||
&& ColorIn1->Colors[CrntSlot - 1].Green == 0
|
||||
&& ColorIn1->Colors[CrntSlot - 1].Blue == 0)
|
||||
while (ColorIn1->Colors[CrntSlot - 1].Red == 0 &&
|
||||
ColorIn1->Colors[CrntSlot - 1].Green == 0 &&
|
||||
ColorIn1->Colors[CrntSlot - 1].Blue == 0) {
|
||||
CrntSlot--;
|
||||
}
|
||||
|
||||
/* Copy ColorIn2 to ColorUnion (use old colors if they exist): */
|
||||
for (i = 0; i < ColorIn2->ColorCount && CrntSlot <= 256; i++) {
|
||||
/* Let's see if this color already exists: */
|
||||
for (j = 0; j < ColorIn1->ColorCount; j++)
|
||||
if (memcmp (&ColorIn1->Colors[j], &ColorIn2->Colors[i],
|
||||
sizeof(GifColorType)) == 0)
|
||||
for (j = 0; j < ColorIn1->ColorCount; j++) {
|
||||
if (memcmp(&ColorIn1->Colors[j], &ColorIn2->Colors[i],
|
||||
sizeof(GifColorType)) == 0) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (j < ColorIn1->ColorCount)
|
||||
ColorTransIn2[i] = j; /* color exists in Color1 */
|
||||
else {
|
||||
if (j < ColorIn1->ColorCount) {
|
||||
ColorTransIn2[i] = j; /* color exists in Color1 */
|
||||
} else {
|
||||
/* Color is new - copy it to a new slot: */
|
||||
ColorUnion->Colors[CrntSlot] = ColorIn2->Colors[i];
|
||||
ColorTransIn2[i] = CrntSlot++;
|
||||
@ -196,7 +194,7 @@ GifUnionColorMap(const ColorMapObject *ColorIn1,
|
||||
|
||||
if (CrntSlot > 256) {
|
||||
GifFreeMapObject(ColorUnion);
|
||||
return ((ColorMapObject *) NULL);
|
||||
return ((ColorMapObject *)NULL);
|
||||
}
|
||||
|
||||
NewGifBitSize = GifBitSize(CrntSlot);
|
||||
@ -210,16 +208,17 @@ GifUnionColorMap(const ColorMapObject *ColorIn1,
|
||||
* We know these slots exist because of the way ColorUnion's
|
||||
* start dimension was computed.
|
||||
*/
|
||||
for (j = CrntSlot; j < RoundUpTo; j++)
|
||||
for (j = CrntSlot; j < RoundUpTo; j++) {
|
||||
Map[j].Red = Map[j].Green = Map[j].Blue = 0;
|
||||
}
|
||||
|
||||
/* perhaps we can shrink the map? */
|
||||
if (RoundUpTo < ColorUnion->ColorCount) {
|
||||
GifColorType *new_map = (GifColorType *)reallocarray(Map,
|
||||
RoundUpTo, sizeof(GifColorType));
|
||||
if( new_map == NULL ) {
|
||||
GifColorType *new_map = (GifColorType *)reallocarray(
|
||||
Map, RoundUpTo, sizeof(GifColorType));
|
||||
if (new_map == NULL) {
|
||||
GifFreeMapObject(ColorUnion);
|
||||
return ((ColorMapObject *) NULL);
|
||||
return ((ColorMapObject *)NULL);
|
||||
}
|
||||
ColorUnion->Colors = new_map;
|
||||
}
|
||||
@ -234,49 +233,49 @@ GifUnionColorMap(const ColorMapObject *ColorIn1,
|
||||
/*******************************************************************************
|
||||
Apply a given color translation to the raster bits of an image
|
||||
*******************************************************************************/
|
||||
void
|
||||
GifApplyTranslation(SavedImage *Image, GifPixelType Translation[])
|
||||
{
|
||||
void GifApplyTranslation(SavedImage *Image, const GifPixelType Translation[]) {
|
||||
register int i;
|
||||
register int RasterSize = Image->ImageDesc.Height * Image->ImageDesc.Width;
|
||||
register int RasterSize =
|
||||
Image->ImageDesc.Height * Image->ImageDesc.Width;
|
||||
|
||||
for (i = 0; i < RasterSize; i++)
|
||||
for (i = 0; i < RasterSize; i++) {
|
||||
Image->RasterBits[i] = Translation[Image->RasterBits[i]];
|
||||
}
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
Extension record functions
|
||||
******************************************************************************/
|
||||
int
|
||||
GifAddExtensionBlock(int *ExtensionBlockCount,
|
||||
ExtensionBlock **ExtensionBlocks,
|
||||
int Function,
|
||||
unsigned int Len,
|
||||
unsigned char ExtData[])
|
||||
{
|
||||
int GifAddExtensionBlock(int *ExtensionBlockCount,
|
||||
ExtensionBlock **ExtensionBlocks, int Function,
|
||||
unsigned int Len, unsigned char ExtData[]) {
|
||||
ExtensionBlock *ep;
|
||||
|
||||
if (*ExtensionBlocks == NULL)
|
||||
*ExtensionBlocks=(ExtensionBlock *)malloc(sizeof(ExtensionBlock));
|
||||
else {
|
||||
ExtensionBlock* ep_new = (ExtensionBlock *)reallocarray
|
||||
(*ExtensionBlocks, (*ExtensionBlockCount + 1),
|
||||
sizeof(ExtensionBlock));
|
||||
if( ep_new == NULL )
|
||||
if (*ExtensionBlocks == NULL) {
|
||||
*ExtensionBlocks =
|
||||
(ExtensionBlock *)malloc(sizeof(ExtensionBlock));
|
||||
} else {
|
||||
ExtensionBlock *ep_new = (ExtensionBlock *)reallocarray(
|
||||
*ExtensionBlocks, (*ExtensionBlockCount + 1),
|
||||
sizeof(ExtensionBlock));
|
||||
if (ep_new == NULL) {
|
||||
return (GIF_ERROR);
|
||||
}
|
||||
*ExtensionBlocks = ep_new;
|
||||
}
|
||||
|
||||
if (*ExtensionBlocks == NULL)
|
||||
if (*ExtensionBlocks == NULL) {
|
||||
return (GIF_ERROR);
|
||||
}
|
||||
|
||||
ep = &(*ExtensionBlocks)[(*ExtensionBlockCount)++];
|
||||
|
||||
ep->Function = Function;
|
||||
ep->ByteCount=Len;
|
||||
ep->ByteCount = Len;
|
||||
ep->Bytes = (GifByteType *)malloc(ep->ByteCount);
|
||||
if (ep->Bytes == NULL)
|
||||
if (ep->Bytes == NULL) {
|
||||
return (GIF_ERROR);
|
||||
}
|
||||
|
||||
if (ExtData != NULL) {
|
||||
memcpy(ep->Bytes, ExtData, Len);
|
||||
@ -285,38 +284,36 @@ GifAddExtensionBlock(int *ExtensionBlockCount,
|
||||
return (GIF_OK);
|
||||
}
|
||||
|
||||
void
|
||||
GifFreeExtensions(int *ExtensionBlockCount,
|
||||
ExtensionBlock **ExtensionBlocks)
|
||||
{
|
||||
void GifFreeExtensions(int *ExtensionBlockCount,
|
||||
ExtensionBlock **ExtensionBlocks) {
|
||||
ExtensionBlock *ep;
|
||||
|
||||
if (*ExtensionBlocks == NULL)
|
||||
if (*ExtensionBlocks == NULL) {
|
||||
return;
|
||||
}
|
||||
|
||||
for (ep = *ExtensionBlocks;
|
||||
ep < (*ExtensionBlocks + *ExtensionBlockCount);
|
||||
ep++)
|
||||
ep < (*ExtensionBlocks + *ExtensionBlockCount); ep++) {
|
||||
(void)free((char *)ep->Bytes);
|
||||
}
|
||||
(void)free((char *)*ExtensionBlocks);
|
||||
*ExtensionBlocks = NULL;
|
||||
*ExtensionBlockCount = 0;
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
Image block allocation functions
|
||||
Image block allocation functions
|
||||
******************************************************************************/
|
||||
|
||||
/* Private Function:
|
||||
* Frees the last image in the GifFile->SavedImages array
|
||||
*/
|
||||
void
|
||||
FreeLastSavedImage(GifFileType *GifFile)
|
||||
{
|
||||
void FreeLastSavedImage(GifFileType *GifFile) {
|
||||
SavedImage *sp;
|
||||
|
||||
if ((GifFile == NULL) || (GifFile->SavedImages == NULL))
|
||||
if ((GifFile == NULL) || (GifFile->SavedImages == NULL)) {
|
||||
return;
|
||||
}
|
||||
|
||||
/* Remove one SavedImage from the GifFile */
|
||||
GifFile->ImageCount--;
|
||||
@ -329,54 +326,58 @@ FreeLastSavedImage(GifFileType *GifFile)
|
||||
}
|
||||
|
||||
/* Deallocate the image data */
|
||||
if (sp->RasterBits != NULL)
|
||||
if (sp->RasterBits != NULL) {
|
||||
free((char *)sp->RasterBits);
|
||||
}
|
||||
|
||||
/* Deallocate any extensions */
|
||||
GifFreeExtensions(&sp->ExtensionBlockCount, &sp->ExtensionBlocks);
|
||||
|
||||
/*** FIXME: We could realloc the GifFile->SavedImages structure but is
|
||||
* there a point to it? Saves some memory but we'd have to do it every
|
||||
* time. If this is used in GifFreeSavedImages then it would be inefficient
|
||||
* (The whole array is going to be deallocated.) If we just use it when
|
||||
* we want to free the last Image it's convenient to do it here.
|
||||
* time. If this is used in GifFreeSavedImages then it would be
|
||||
* inefficient (The whole array is going to be deallocated.) If we just
|
||||
* use it when we want to free the last Image it's convenient to do it
|
||||
* here.
|
||||
*/
|
||||
}
|
||||
|
||||
/*
|
||||
* Append an image block to the SavedImages array
|
||||
*/
|
||||
SavedImage *
|
||||
GifMakeSavedImage(GifFileType *GifFile, const SavedImage *CopyFrom)
|
||||
{
|
||||
if (GifFile->SavedImages == NULL)
|
||||
SavedImage *GifMakeSavedImage(GifFileType *GifFile,
|
||||
const SavedImage *CopyFrom) {
|
||||
// cppcheck-suppress ctunullpointer
|
||||
if (GifFile->SavedImages == NULL) {
|
||||
GifFile->SavedImages = (SavedImage *)malloc(sizeof(SavedImage));
|
||||
else {
|
||||
SavedImage* newSavedImages = (SavedImage *)reallocarray(GifFile->SavedImages,
|
||||
(GifFile->ImageCount + 1), sizeof(SavedImage));
|
||||
if( newSavedImages == NULL)
|
||||
} else {
|
||||
SavedImage *newSavedImages = (SavedImage *)reallocarray(
|
||||
GifFile->SavedImages, (GifFile->ImageCount + 1),
|
||||
sizeof(SavedImage));
|
||||
if (newSavedImages == NULL) {
|
||||
return ((SavedImage *)NULL);
|
||||
}
|
||||
GifFile->SavedImages = newSavedImages;
|
||||
}
|
||||
if (GifFile->SavedImages == NULL)
|
||||
if (GifFile->SavedImages == NULL) {
|
||||
return ((SavedImage *)NULL);
|
||||
else {
|
||||
} else {
|
||||
SavedImage *sp = &GifFile->SavedImages[GifFile->ImageCount++];
|
||||
|
||||
if (CopyFrom != NULL) {
|
||||
memcpy((char *)sp, CopyFrom, sizeof(SavedImage));
|
||||
|
||||
/*
|
||||
* Make our own allocated copies of the heap fields in the
|
||||
* copied record. This guards against potential aliasing
|
||||
* problems.
|
||||
* Make our own allocated copies of the heap fields in
|
||||
* the copied record. This guards against potential
|
||||
* aliasing problems.
|
||||
*/
|
||||
|
||||
/* first, the local color map */
|
||||
if (CopyFrom->ImageDesc.ColorMap != NULL) {
|
||||
sp->ImageDesc.ColorMap = GifMakeMapObject(
|
||||
CopyFrom->ImageDesc.ColorMap->ColorCount,
|
||||
CopyFrom->ImageDesc.ColorMap->Colors);
|
||||
CopyFrom->ImageDesc.ColorMap->ColorCount,
|
||||
CopyFrom->ImageDesc.ColorMap->Colors);
|
||||
if (sp->ImageDesc.ColorMap == NULL) {
|
||||
FreeLastSavedImage(GifFile);
|
||||
return (SavedImage *)(NULL);
|
||||
@ -384,32 +385,36 @@ GifMakeSavedImage(GifFileType *GifFile, const SavedImage *CopyFrom)
|
||||
}
|
||||
|
||||
/* next, the raster */
|
||||
sp->RasterBits = (unsigned char *)reallocarray(NULL,
|
||||
(CopyFrom->ImageDesc.Height *
|
||||
CopyFrom->ImageDesc.Width),
|
||||
sizeof(GifPixelType));
|
||||
sp->RasterBits = (unsigned char *)reallocarray(
|
||||
NULL,
|
||||
(CopyFrom->ImageDesc.Height *
|
||||
CopyFrom->ImageDesc.Width),
|
||||
sizeof(GifPixelType));
|
||||
if (sp->RasterBits == NULL) {
|
||||
FreeLastSavedImage(GifFile);
|
||||
return (SavedImage *)(NULL);
|
||||
}
|
||||
memcpy(sp->RasterBits, CopyFrom->RasterBits,
|
||||
sizeof(GifPixelType) * CopyFrom->ImageDesc.Height *
|
||||
CopyFrom->ImageDesc.Width);
|
||||
sizeof(GifPixelType) *
|
||||
CopyFrom->ImageDesc.Height *
|
||||
CopyFrom->ImageDesc.Width);
|
||||
|
||||
/* finally, the extension blocks */
|
||||
if (CopyFrom->ExtensionBlocks != NULL) {
|
||||
sp->ExtensionBlocks = (ExtensionBlock *)reallocarray(NULL,
|
||||
CopyFrom->ExtensionBlockCount,
|
||||
sizeof(ExtensionBlock));
|
||||
sp->ExtensionBlocks =
|
||||
(ExtensionBlock *)reallocarray(
|
||||
NULL, CopyFrom->ExtensionBlockCount,
|
||||
sizeof(ExtensionBlock));
|
||||
if (sp->ExtensionBlocks == NULL) {
|
||||
FreeLastSavedImage(GifFile);
|
||||
return (SavedImage *)(NULL);
|
||||
}
|
||||
memcpy(sp->ExtensionBlocks, CopyFrom->ExtensionBlocks,
|
||||
sizeof(ExtensionBlock) * CopyFrom->ExtensionBlockCount);
|
||||
memcpy(sp->ExtensionBlocks,
|
||||
CopyFrom->ExtensionBlocks,
|
||||
sizeof(ExtensionBlock) *
|
||||
CopyFrom->ExtensionBlockCount);
|
||||
}
|
||||
}
|
||||
else {
|
||||
} else {
|
||||
memset((char *)sp, '\0', sizeof(SavedImage));
|
||||
}
|
||||
|
||||
@ -417,9 +422,7 @@ GifMakeSavedImage(GifFileType *GifFile, const SavedImage *CopyFrom)
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
GifFreeSavedImages(GifFileType *GifFile)
|
||||
{
|
||||
void GifFreeSavedImages(GifFileType *GifFile) {
|
||||
SavedImage *sp;
|
||||
|
||||
if ((GifFile == NULL) || (GifFile->SavedImages == NULL)) {
|
||||
@ -432,10 +435,12 @@ GifFreeSavedImages(GifFileType *GifFile)
|
||||
sp->ImageDesc.ColorMap = NULL;
|
||||
}
|
||||
|
||||
if (sp->RasterBits != NULL)
|
||||
if (sp->RasterBits != NULL) {
|
||||
free((char *)sp->RasterBits);
|
||||
}
|
||||
|
||||
GifFreeExtensions(&sp->ExtensionBlockCount, &sp->ExtensionBlocks);
|
||||
GifFreeExtensions(&sp->ExtensionBlockCount,
|
||||
&sp->ExtensionBlocks);
|
||||
}
|
||||
free((char *)GifFile->SavedImages);
|
||||
GifFile->SavedImages = NULL;
|
||||
|
@ -28,24 +28,22 @@
|
||||
* SPDX-License-Identifier: MIT
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <errno.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#ifndef SIZE_MAX
|
||||
#define SIZE_MAX UINTPTR_MAX
|
||||
#define SIZE_MAX UINTPTR_MAX
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
|
||||
* if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
|
||||
*/
|
||||
#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4))
|
||||
#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4))
|
||||
|
||||
void *
|
||||
openbsd_reallocarray(void *optr, size_t nmemb, size_t size)
|
||||
{
|
||||
void *openbsd_reallocarray(void *optr, size_t nmemb, size_t size) {
|
||||
if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
|
||||
nmemb > 0 && SIZE_MAX / nmemb < size) {
|
||||
errno = ENOMEM;
|
||||
@ -93,7 +91,8 @@ openbsd_reallocarray(void *optr, size_t nmemb, size_t size)
|
||||
* fuzzing on one platform may not detect zero-size allocation
|
||||
* problems on other platforms.
|
||||
*/
|
||||
if (size == 0 || nmemb == 0)
|
||||
if (size == 0 || nmemb == 0) {
|
||||
return NULL;
|
||||
}
|
||||
return realloc(optr, size * nmemb);
|
||||
}
|
||||
|
Loading…
x
Reference in New Issue
Block a user