mirror of
https://git.code.sf.net/p/libpng/code.git
synced 2025-07-10 18:04:09 +02:00
Housecleaning: revise identation and comments to meet libpng coding style.
This commit is contained in:
parent
9a692c0769
commit
b1c0d33128
447
pngset.c
447
pngset.c
@@ -79,25 +79,25 @@ png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
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white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y))
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#endif
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{
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info_ptr->int_x_white = white_x;
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info_ptr->int_y_white = white_y;
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info_ptr->int_x_red = red_x;
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info_ptr->int_y_red = red_y;
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info_ptr->int_x_green = green_x;
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info_ptr->int_y_green = green_y;
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info_ptr->int_x_blue = blue_x;
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info_ptr->int_y_blue = blue_y;
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#ifdef PNG_FLOATING_POINT_SUPPORTED
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info_ptr->x_white = (float)(white_x/100000.);
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info_ptr->y_white = (float)(white_y/100000.);
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info_ptr->x_red = (float)( red_x/100000.);
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info_ptr->y_red = (float)( red_y/100000.);
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info_ptr->x_green = (float)(green_x/100000.);
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info_ptr->y_green = (float)(green_y/100000.);
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info_ptr->x_blue = (float)( blue_x/100000.);
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info_ptr->y_blue = (float)( blue_y/100000.);
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info_ptr->int_x_white = white_x;
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info_ptr->int_y_white = white_y;
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info_ptr->int_x_red = red_x;
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info_ptr->int_y_red = red_y;
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info_ptr->int_x_green = green_x;
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info_ptr->int_y_green = green_y;
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info_ptr->int_x_blue = blue_x;
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info_ptr->int_y_blue = blue_y;
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#ifdef PNG_FLOATING_POINT_SUPPORTED
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info_ptr->x_white = (float)(white_x/100000.);
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info_ptr->y_white = (float)(white_y/100000.);
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info_ptr->x_red = (float)( red_x/100000.);
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info_ptr->y_red = (float)( red_y/100000.);
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info_ptr->x_green = (float)(green_x/100000.);
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info_ptr->y_green = (float)(green_y/100000.);
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info_ptr->x_blue = (float)( blue_x/100000.);
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info_ptr->y_blue = (float)( blue_y/100000.);
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#endif
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info_ptr->valid |= PNG_INFO_cHRM;
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info_ptr->valid |= PNG_INFO_cHRM;
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}
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}
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#endif /* PNG_FIXED_POINT_SUPPORTED */
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@@ -140,20 +140,20 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
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if (png_ptr == NULL || info_ptr == NULL)
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return;
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if (int_gamma > (png_fixed_point) PNG_UINT_31_MAX)
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if (int_gamma > (png_fixed_point)PNG_UINT_31_MAX)
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{
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png_warning(png_ptr, "Limiting gamma to 21474.83");
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png_gamma=PNG_UINT_31_MAX;
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png_warning(png_ptr, "Limiting gamma to 21474.83");
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png_gamma=PNG_UINT_31_MAX;
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}
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else
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{
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if (int_gamma < 0)
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{
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png_warning(png_ptr, "Setting negative gamma to zero");
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png_gamma = 0;
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}
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else
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png_gamma = int_gamma;
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if (int_gamma < 0)
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{
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png_warning(png_ptr, "Setting negative gamma to zero");
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png_gamma = 0;
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}
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else
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png_gamma = int_gamma;
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}
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#ifdef PNG_FLOATING_POINT_SUPPORTED
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info_ptr->gamma = (float)(png_gamma/100000.);
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@@ -179,26 +179,27 @@ png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
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if (info_ptr->num_palette == 0 || info_ptr->num_palette
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> PNG_MAX_PALETTE_LENGTH)
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{
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png_warning(png_ptr,
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"Invalid palette size, hIST allocation skipped");
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return;
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png_warning(png_ptr,
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"Invalid palette size, hIST allocation skipped");
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return;
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}
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#ifdef PNG_FREE_ME_SUPPORTED
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png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0);
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#endif
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/* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in version
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1.2.1 */
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/* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in
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* version 1.2.1
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*/
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png_ptr->hist = (png_uint_16p)png_malloc_warn(png_ptr,
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PNG_MAX_PALETTE_LENGTH * png_sizeof(png_uint_16));
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if (png_ptr->hist == NULL)
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{
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png_warning(png_ptr, "Insufficient memory for hIST chunk data");
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return;
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}
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{
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png_warning(png_ptr, "Insufficient memory for hIST chunk data");
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return;
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}
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for (i = 0; i < info_ptr->num_palette; i++)
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png_ptr->hist[i] = hist[i];
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png_ptr->hist[i] = hist[i];
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info_ptr->hist = png_ptr->hist;
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info_ptr->valid |= PNG_INFO_hIST;
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@@ -246,7 +247,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
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png_error(png_ptr, "Invalid bit depth in IHDR");
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if (color_type < 0 || color_type == 1 ||
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color_type == 5 || color_type > 6)
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color_type == 5 || color_type > 6)
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png_error(png_ptr, "Invalid color type in IHDR");
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if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) ||
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@@ -276,9 +277,9 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
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if (filter_type != PNG_FILTER_TYPE_BASE)
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{
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if (!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
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(filter_type == PNG_INTRAPIXEL_DIFFERENCING) &&
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((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) &&
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(color_type == PNG_COLOR_TYPE_RGB ||
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(filter_type == PNG_INTRAPIXEL_DIFFERENCING) &&
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((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) &&
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(color_type == PNG_COLOR_TYPE_RGB ||
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color_type == PNG_COLOR_TYPE_RGB_ALPHA)))
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png_error(png_ptr, "Unknown filter method in IHDR");
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if (png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)
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@@ -496,15 +497,15 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
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return;
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if (num_palette < 0 || num_palette > PNG_MAX_PALETTE_LENGTH)
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{
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if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
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{
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if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
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png_error(png_ptr, "Invalid palette length");
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else
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{
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else
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{
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png_warning(png_ptr, "Invalid palette length");
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return;
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}
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}
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}
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}
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/*
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* It may not actually be necessary to set png_ptr->palette here;
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@@ -516,8 +517,9 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
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#endif
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/* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead
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of num_palette entries,
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in case of an invalid PNG file that has too-large sample values. */
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* of num_palette entries, in case of an invalid PNG file that has
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* too-large sample values.
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*/
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#ifdef PNG_CALLOC_SUPPORTED
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png_ptr->palette = (png_colorp)png_calloc(png_ptr,
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PNG_MAX_PALETTE_LENGTH * png_sizeof(png_color));
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@@ -625,18 +627,18 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr,
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#if !defined(PNG_NO_CHECK_cHRM)
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if (png_check_cHRM_fixed(png_ptr,
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int_white_x, int_white_y, int_red_x, int_red_y, int_green_x,
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int_green_y, int_blue_x, int_blue_y))
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int_white_x, int_white_y, int_red_x, int_red_y, int_green_x,
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int_green_y, int_blue_x, int_blue_y))
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#endif
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{
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#ifdef PNG_FIXED_POINT_SUPPORTED
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png_set_cHRM_fixed(png_ptr, info_ptr,
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int_white_x, int_white_y, int_red_x, int_red_y, int_green_x,
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int_green_y, int_blue_x, int_blue_y);
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png_set_cHRM_fixed(png_ptr, info_ptr,
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int_white_x, int_white_y, int_red_x, int_red_y, int_green_x,
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int_green_y, int_blue_x, int_blue_y);
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#endif
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#ifdef PNG_FLOATING_POINT_SUPPORTED
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png_set_cHRM(png_ptr, info_ptr,
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white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y);
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white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y);
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#endif
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}
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#endif /* cHRM */
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@@ -694,17 +696,17 @@ png_set_iCCP(png_structp png_ptr, png_infop info_ptr,
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#if defined(PNG_TEXT_SUPPORTED)
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void PNGAPI
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png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
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int num_text)
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int num_text)
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{
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int ret;
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ret = png_set_text_2(png_ptr, info_ptr, text_ptr, num_text);
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if (ret)
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png_error(png_ptr, "Insufficient memory to store text");
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png_error(png_ptr, "Insufficient memory to store text");
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}
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int /* PRIVATE */
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png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
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int num_text)
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int num_text)
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{
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int i;
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@@ -730,10 +732,10 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
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info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
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(png_size_t)(info_ptr->max_text * png_sizeof(png_text)));
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if (info_ptr->text == NULL)
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{
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png_free(png_ptr, old_text);
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return(1);
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}
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{
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png_free(png_ptr, old_text);
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return(1);
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}
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png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max *
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png_sizeof(png_text)));
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png_free(png_ptr, old_text);
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@@ -745,7 +747,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
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info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
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(png_size_t)(info_ptr->max_text * png_sizeof(png_text)));
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if (info_ptr->text == NULL)
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return(1);
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return(1);
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#ifdef PNG_FREE_ME_SUPPORTED
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info_ptr->free_me |= PNG_FREE_TEXT;
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#endif
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@@ -766,26 +768,26 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
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if (text_ptr[i].compression <= 0)
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{
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lang_len = 0;
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lang_key_len = 0;
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lang_len = 0;
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lang_key_len = 0;
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}
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else
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#ifdef PNG_iTXt_SUPPORTED
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{
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/* set iTXt data */
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if (text_ptr[i].lang != NULL)
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lang_len = png_strlen(text_ptr[i].lang);
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else
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lang_len = 0;
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if (text_ptr[i].lang_key != NULL)
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lang_key_len = png_strlen(text_ptr[i].lang_key);
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else
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lang_key_len = 0;
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/* set iTXt data */
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if (text_ptr[i].lang != NULL)
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lang_len = png_strlen(text_ptr[i].lang);
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else
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lang_len = 0;
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if (text_ptr[i].lang_key != NULL)
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lang_key_len = png_strlen(text_ptr[i].lang_key);
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else
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lang_key_len = 0;
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}
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#else
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{
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png_warning(png_ptr, "iTXt chunk not supported");
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continue;
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png_warning(png_ptr, "iTXt chunk not supported");
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continue;
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}
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#endif
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@@ -809,14 +811,13 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
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(png_size_t)
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(key_len + text_length + lang_len + lang_key_len + 4));
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if (textp->key == NULL)
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return(1);
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return(1);
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png_debug2(2, "Allocated %lu bytes at %x in png_set_text",
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(unsigned long)(png_uint_32)
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(key_len + lang_len + lang_key_len + text_length + 4),
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(int)textp->key);
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(unsigned long)(png_uint_32)
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(key_len + lang_len + lang_key_len + text_length + 4),
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(int)textp->key);
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png_memcpy(textp->key, text_ptr[i].key,
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(png_size_t)(key_len));
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png_memcpy(textp->key, text_ptr[i].key,(png_size_t)(key_len));
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*(textp->key + key_len) = '\0';
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#ifdef PNG_iTXt_SUPPORTED
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if (text_ptr[i].compression > 0)
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@@ -903,7 +904,7 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
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png_ptr->trans = info_ptr->trans = (png_bytep)png_malloc(png_ptr,
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(png_size_t)PNG_MAX_PALETTE_LENGTH);
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if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH)
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png_memcpy(info_ptr->trans, trans, (png_size_t)num_trans);
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png_memcpy(info_ptr->trans, trans, (png_size_t)num_trans);
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}
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if (trans_color != NULL)
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@@ -915,12 +916,12 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
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((int)trans_color->red > sample_max ||
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(int)trans_color->green > sample_max ||
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(int)trans_color->blue > sample_max)))
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png_warning(png_ptr,
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"tRNS chunk has out-of-range samples for bit_depth");
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png_warning(png_ptr,
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"tRNS chunk has out-of-range samples for bit_depth");
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png_memcpy(&(info_ptr->trans_color), trans_color,
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png_sizeof(png_color_16));
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if (num_trans == 0)
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num_trans = 1;
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num_trans = 1;
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}
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info_ptr->num_trans = (png_uint_16)num_trans;
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@@ -948,62 +949,62 @@ png_set_sPLT(png_structp png_ptr,
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* added.
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*/
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{
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png_sPLT_tp np;
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int i;
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png_sPLT_tp np;
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int i;
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if (png_ptr == NULL || info_ptr == NULL)
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return;
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np = (png_sPLT_tp)png_malloc_warn(png_ptr,
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(info_ptr->splt_palettes_num + nentries) *
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(png_size_t)png_sizeof(png_sPLT_t));
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if (np == NULL)
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{
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png_warning(png_ptr, "No memory for sPLT palettes");
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if (png_ptr == NULL || info_ptr == NULL)
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return;
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}
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png_memcpy(np, info_ptr->splt_palettes,
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info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t));
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png_free(png_ptr, info_ptr->splt_palettes);
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info_ptr->splt_palettes=NULL;
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np = (png_sPLT_tp)png_malloc_warn(png_ptr,
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(info_ptr->splt_palettes_num + nentries) *
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(png_size_t)png_sizeof(png_sPLT_t));
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if (np == NULL)
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{
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png_warning(png_ptr, "No memory for sPLT palettes");
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return;
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}
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for (i = 0; i < nentries; i++)
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{
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png_sPLT_tp to = np + info_ptr->splt_palettes_num + i;
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png_sPLT_tp from = entries + i;
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png_uint_32 length;
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png_memcpy(np, info_ptr->splt_palettes,
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info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t));
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png_free(png_ptr, info_ptr->splt_palettes);
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info_ptr->splt_palettes=NULL;
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length = png_strlen(from->name) + 1;
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for (i = 0; i < nentries; i++)
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{
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png_sPLT_tp to = np + info_ptr->splt_palettes_num + i;
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png_sPLT_tp from = entries + i;
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png_uint_32 length;
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length = png_strlen(from->name) + 1;
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to->name = (png_charp)png_malloc_warn(png_ptr, (png_size_t)length);
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if (to->name == NULL)
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{
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png_warning(png_ptr,
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"Out of memory while processing sPLT chunk");
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continue;
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}
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png_memcpy(to->name, from->name, length);
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to->entries = (png_sPLT_entryp)png_malloc_warn(png_ptr,
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if (to->name == NULL)
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{
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png_warning(png_ptr,
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"Out of memory while processing sPLT chunk");
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continue;
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}
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png_memcpy(to->name, from->name, length);
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to->entries = (png_sPLT_entryp)png_malloc_warn(png_ptr,
|
||||
(png_size_t)(from->nentries * png_sizeof(png_sPLT_entry)));
|
||||
if (to->entries == NULL)
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Out of memory while processing sPLT chunk");
|
||||
png_free(png_ptr, to->name);
|
||||
to->name = NULL;
|
||||
continue;
|
||||
}
|
||||
png_memcpy(to->entries, from->entries,
|
||||
from->nentries * png_sizeof(png_sPLT_entry));
|
||||
to->nentries = from->nentries;
|
||||
to->depth = from->depth;
|
||||
}
|
||||
if (to->entries == NULL)
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Out of memory while processing sPLT chunk");
|
||||
png_free(png_ptr, to->name);
|
||||
to->name = NULL;
|
||||
continue;
|
||||
}
|
||||
png_memcpy(to->entries, from->entries,
|
||||
from->nentries * png_sizeof(png_sPLT_entry));
|
||||
to->nentries = from->nentries;
|
||||
to->depth = from->depth;
|
||||
}
|
||||
|
||||
info_ptr->splt_palettes = np;
|
||||
info_ptr->splt_palettes_num += nentries;
|
||||
info_ptr->valid |= PNG_INFO_sPLT;
|
||||
info_ptr->splt_palettes = np;
|
||||
info_ptr->splt_palettes_num += nentries;
|
||||
info_ptr->valid |= PNG_INFO_sPLT;
|
||||
#ifdef PNG_FREE_ME_SUPPORTED
|
||||
info_ptr->free_me |= PNG_FREE_SPLT;
|
||||
info_ptr->free_me |= PNG_FREE_SPLT;
|
||||
#endif
|
||||
}
|
||||
#endif /* PNG_sPLT_SUPPORTED */
|
||||
@@ -1013,60 +1014,60 @@ void PNGAPI
|
||||
png_set_unknown_chunks(png_structp png_ptr,
|
||||
png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)
|
||||
{
|
||||
png_unknown_chunkp np;
|
||||
int i;
|
||||
png_unknown_chunkp np;
|
||||
int i;
|
||||
|
||||
if (png_ptr == NULL || info_ptr == NULL || num_unknowns == 0)
|
||||
return;
|
||||
|
||||
np = (png_unknown_chunkp)png_malloc_warn(png_ptr,
|
||||
(png_size_t)((info_ptr->unknown_chunks_num + num_unknowns) *
|
||||
png_sizeof(png_unknown_chunk)));
|
||||
if (np == NULL)
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Out of memory while processing unknown chunk");
|
||||
if (png_ptr == NULL || info_ptr == NULL || num_unknowns == 0)
|
||||
return;
|
||||
}
|
||||
|
||||
png_memcpy(np, info_ptr->unknown_chunks,
|
||||
info_ptr->unknown_chunks_num * png_sizeof(png_unknown_chunk));
|
||||
png_free(png_ptr, info_ptr->unknown_chunks);
|
||||
np = (png_unknown_chunkp)png_malloc_warn(png_ptr,
|
||||
(png_size_t)((info_ptr->unknown_chunks_num + num_unknowns) *
|
||||
png_sizeof(png_unknown_chunk)));
|
||||
if (np == NULL)
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Out of memory while processing unknown chunk");
|
||||
return;
|
||||
}
|
||||
|
||||
for (i = 0; i < num_unknowns; i++)
|
||||
{
|
||||
png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i;
|
||||
png_unknown_chunkp from = unknowns + i;
|
||||
png_memcpy(np, info_ptr->unknown_chunks,
|
||||
info_ptr->unknown_chunks_num * png_sizeof(png_unknown_chunk));
|
||||
png_free(png_ptr, info_ptr->unknown_chunks);
|
||||
|
||||
png_memcpy((png_charp)to->name,
|
||||
(png_charp)from->name,
|
||||
png_sizeof(from->name));
|
||||
to->name[png_sizeof(to->name)-1] = '\0';
|
||||
to->size = from->size;
|
||||
/* note our location in the read or write sequence */
|
||||
to->location = (png_byte)(png_ptr->mode & 0xff);
|
||||
for (i = 0; i < num_unknowns; i++)
|
||||
{
|
||||
png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i;
|
||||
png_unknown_chunkp from = unknowns + i;
|
||||
|
||||
if (from->size == 0)
|
||||
to->data=NULL;
|
||||
else
|
||||
{
|
||||
to->data = (png_bytep)png_malloc_warn(png_ptr,
|
||||
(png_size_t)from->size);
|
||||
if (to->data == NULL)
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Out of memory while processing unknown chunk");
|
||||
to->size = 0;
|
||||
}
|
||||
else
|
||||
png_memcpy(to->data, from->data, from->size);
|
||||
}
|
||||
}
|
||||
png_memcpy((png_charp)to->name,
|
||||
(png_charp)from->name,
|
||||
png_sizeof(from->name));
|
||||
to->name[png_sizeof(to->name)-1] = '\0';
|
||||
to->size = from->size;
|
||||
/* note our location in the read or write sequence */
|
||||
to->location = (png_byte)(png_ptr->mode & 0xff);
|
||||
|
||||
info_ptr->unknown_chunks = np;
|
||||
info_ptr->unknown_chunks_num += num_unknowns;
|
||||
if (from->size == 0)
|
||||
to->data=NULL;
|
||||
else
|
||||
{
|
||||
to->data = (png_bytep)png_malloc_warn(png_ptr,
|
||||
(png_size_t)from->size);
|
||||
if (to->data == NULL)
|
||||
{
|
||||
png_warning(png_ptr,
|
||||
"Out of memory while processing unknown chunk");
|
||||
to->size = 0;
|
||||
}
|
||||
else
|
||||
png_memcpy(to->data, from->data, from->size);
|
||||
}
|
||||
}
|
||||
|
||||
info_ptr->unknown_chunks = np;
|
||||
info_ptr->unknown_chunks_num += num_unknowns;
|
||||
#ifdef PNG_FREE_ME_SUPPORTED
|
||||
info_ptr->free_me |= PNG_FREE_UNKN;
|
||||
info_ptr->free_me |= PNG_FREE_UNKN;
|
||||
#endif
|
||||
}
|
||||
void PNGAPI
|
||||
@@ -1098,44 +1099,44 @@ void PNGAPI
|
||||
png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
|
||||
chunk_list, int num_chunks)
|
||||
{
|
||||
png_bytep new_list, p;
|
||||
int i, old_num_chunks;
|
||||
if (png_ptr == NULL)
|
||||
return;
|
||||
if (num_chunks == 0)
|
||||
{
|
||||
png_bytep new_list, p;
|
||||
int i, old_num_chunks;
|
||||
if (png_ptr == NULL)
|
||||
return;
|
||||
if (num_chunks == 0)
|
||||
{
|
||||
if (keep == PNG_HANDLE_CHUNK_ALWAYS || keep == PNG_HANDLE_CHUNK_IF_SAFE)
|
||||
png_ptr->flags |= PNG_FLAG_KEEP_UNKNOWN_CHUNKS;
|
||||
png_ptr->flags |= PNG_FLAG_KEEP_UNKNOWN_CHUNKS;
|
||||
else
|
||||
png_ptr->flags &= ~PNG_FLAG_KEEP_UNKNOWN_CHUNKS;
|
||||
png_ptr->flags &= ~PNG_FLAG_KEEP_UNKNOWN_CHUNKS;
|
||||
|
||||
if (keep == PNG_HANDLE_CHUNK_ALWAYS)
|
||||
png_ptr->flags |= PNG_FLAG_KEEP_UNSAFE_CHUNKS;
|
||||
png_ptr->flags |= PNG_FLAG_KEEP_UNSAFE_CHUNKS;
|
||||
else
|
||||
png_ptr->flags &= ~PNG_FLAG_KEEP_UNSAFE_CHUNKS;
|
||||
png_ptr->flags &= ~PNG_FLAG_KEEP_UNSAFE_CHUNKS;
|
||||
return;
|
||||
}
|
||||
if (chunk_list == NULL)
|
||||
}
|
||||
if (chunk_list == NULL)
|
||||
return;
|
||||
old_num_chunks = png_ptr->num_chunk_list;
|
||||
new_list=(png_bytep)png_malloc(png_ptr,
|
||||
(png_size_t)
|
||||
(5*(num_chunks + old_num_chunks)));
|
||||
if (png_ptr->chunk_list != NULL)
|
||||
{
|
||||
png_memcpy(new_list, png_ptr->chunk_list,
|
||||
(png_size_t)(5*old_num_chunks));
|
||||
png_free(png_ptr, png_ptr->chunk_list);
|
||||
png_ptr->chunk_list=NULL;
|
||||
}
|
||||
png_memcpy(new_list + 5*old_num_chunks, chunk_list,
|
||||
(png_size_t)(5*num_chunks));
|
||||
for (p = new_list + 5*old_num_chunks + 4, i = 0; i<num_chunks; i++, p += 5)
|
||||
*p=(png_byte)keep;
|
||||
png_ptr->num_chunk_list = old_num_chunks + num_chunks;
|
||||
png_ptr->chunk_list = new_list;
|
||||
old_num_chunks = png_ptr->num_chunk_list;
|
||||
new_list=(png_bytep)png_malloc(png_ptr,
|
||||
(png_size_t)
|
||||
(5*(num_chunks + old_num_chunks)));
|
||||
if (png_ptr->chunk_list != NULL)
|
||||
{
|
||||
png_memcpy(new_list, png_ptr->chunk_list,
|
||||
(png_size_t)(5*old_num_chunks));
|
||||
png_free(png_ptr, png_ptr->chunk_list);
|
||||
png_ptr->chunk_list=NULL;
|
||||
}
|
||||
png_memcpy(new_list + 5*old_num_chunks, chunk_list,
|
||||
(png_size_t)(5*num_chunks));
|
||||
for (p = new_list + 5*old_num_chunks + 4, i = 0; i<num_chunks; i++, p += 5)
|
||||
*p=(png_byte)keep;
|
||||
png_ptr->num_chunk_list = old_num_chunks + num_chunks;
|
||||
png_ptr->chunk_list = new_list;
|
||||
#ifdef PNG_FREE_ME_SUPPORTED
|
||||
png_ptr->free_me |= PNG_FREE_LIST;
|
||||
png_ptr->free_me |= PNG_FREE_LIST;
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
@@ -1200,25 +1201,27 @@ void PNGAPI
|
||||
png_set_user_limits (png_structp png_ptr, png_uint_32 user_width_max,
|
||||
png_uint_32 user_height_max)
|
||||
{
|
||||
/* Images with dimensions larger than these limits will be
|
||||
* rejected by png_set_IHDR(). To accept any PNG datastream
|
||||
* regardless of dimensions, set both limits to 0x7ffffffL.
|
||||
*/
|
||||
if (png_ptr == NULL) return;
|
||||
png_ptr->user_width_max = user_width_max;
|
||||
png_ptr->user_height_max = user_height_max;
|
||||
/* Images with dimensions larger than these limits will be
|
||||
* rejected by png_set_IHDR(). To accept any PNG datastream
|
||||
* regardless of dimensions, set both limits to 0x7ffffffL.
|
||||
*/
|
||||
if (png_ptr == NULL)
|
||||
return;
|
||||
png_ptr->user_width_max = user_width_max;
|
||||
png_ptr->user_height_max = user_height_max;
|
||||
}
|
||||
/* this function was added to libpng 1.4.0 */
|
||||
void PNGAPI
|
||||
png_set_chunk_cache_max (png_structp png_ptr,
|
||||
png_uint_32 user_chunk_cache_max)
|
||||
{
|
||||
if (png_ptr == NULL) return;
|
||||
if (png_ptr == NULL)
|
||||
return;
|
||||
png_ptr->user_chunk_cache_max = user_chunk_cache_max;
|
||||
if (user_chunk_cache_max == 0x7fffffffL) /* Unlimited */
|
||||
png_ptr->user_chunk_cache_max = 0;
|
||||
png_ptr->user_chunk_cache_max = 0;
|
||||
else
|
||||
png_ptr->user_chunk_cache_max = user_chunk_cache_max + 1;
|
||||
png_ptr->user_chunk_cache_max = user_chunk_cache_max + 1;
|
||||
}
|
||||
#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
|
||||
|
||||
@@ -1229,9 +1232,9 @@ png_set_benign_errors(png_structp png_ptr, int allowed)
|
||||
{
|
||||
png_debug(1, "in png_set_benign_errors");
|
||||
if (allowed)
|
||||
png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN;
|
||||
png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN;
|
||||
else
|
||||
png_ptr->flags &= ~PNG_FLAG_BENIGN_ERRORS_WARN;
|
||||
png_ptr->flags &= ~PNG_FLAG_BENIGN_ERRORS_WARN;
|
||||
}
|
||||
#endif /* PNG_BENIGN_ERRORS_SUPPORTED */
|
||||
#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
|
||||
|
||||
Reference in New Issue
Block a user