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-rw-r--r--media/libpng/pngget.c254
1 files changed, 136 insertions, 118 deletions
diff --git a/media/libpng/pngget.c b/media/libpng/pngget.c
index 9fccc61792..9c7977b287 100644
--- a/media/libpng/pngget.c
+++ b/media/libpng/pngget.c
@@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct
*
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -21,18 +21,29 @@ png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_uint_32 flag)
{
if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->valid & flag);
+ {
+#ifdef PNG_READ_tRNS_SUPPORTED
+ /* png_handle_PLTE() may have canceled a valid tRNS chunk but left the
+ * 'valid' flag for the detection of duplicate chunks. Do not report a
+ * valid tRNS chunk in this case.
+ */
+ if (flag == PNG_INFO_tRNS && png_ptr->num_trans == 0)
+ return 0;
+#endif
- return(0);
+ return info_ptr->valid & flag;
+ }
+
+ return 0;
}
size_t PNGAPI
png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->rowbytes);
+ return info_ptr->rowbytes;
- return(0);
+ return 0;
}
#ifdef PNG_INFO_IMAGE_SUPPORTED
@@ -40,9 +51,9 @@ png_bytepp PNGAPI
png_get_rows(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->row_pointers);
+ return info_ptr->row_pointers;
- return(0);
+ return 0;
}
#endif
@@ -54,7 +65,7 @@ png_get_image_width(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->width;
- return (0);
+ return 0;
}
png_uint_32 PNGAPI
@@ -63,7 +74,7 @@ png_get_image_height(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->height;
- return (0);
+ return 0;
}
png_byte PNGAPI
@@ -72,7 +83,7 @@ png_get_bit_depth(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->bit_depth;
- return (0);
+ return 0;
}
png_byte PNGAPI
@@ -81,7 +92,7 @@ png_get_color_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->color_type;
- return (0);
+ return 0;
}
png_byte PNGAPI
@@ -90,7 +101,7 @@ png_get_filter_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->filter_type;
- return (0);
+ return 0;
}
png_byte PNGAPI
@@ -99,7 +110,7 @@ png_get_interlace_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->interlace_type;
- return (0);
+ return 0;
}
png_byte PNGAPI
@@ -108,7 +119,7 @@ png_get_compression_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->compression_type;
- return (0);
+ return 0;
}
png_uint_32 PNGAPI
@@ -116,21 +127,20 @@ png_get_x_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
+ png_debug(1, "in png_get_x_pixels_per_meter");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
- {
- png_debug1(1, "in %s retrieval function",
- "png_get_x_pixels_per_meter");
-
- if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
- return (info_ptr->x_pixels_per_unit);
- }
+ {
+ if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
+ return info_ptr->x_pixels_per_unit;
+ }
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
- return (0);
+ return 0;
}
png_uint_32 PNGAPI
@@ -138,42 +148,41 @@ png_get_y_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
+ png_debug(1, "in png_get_y_pixels_per_meter");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
- png_debug1(1, "in %s retrieval function",
- "png_get_y_pixels_per_meter");
-
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
- return (info_ptr->y_pixels_per_unit);
+ return info_ptr->y_pixels_per_unit;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
- return (0);
+ return 0;
}
png_uint_32 PNGAPI
png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
+ png_debug(1, "in png_get_pixels_per_meter");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
- png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter");
-
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER &&
info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit)
- return (info_ptr->x_pixels_per_unit);
+ return info_ptr->x_pixels_per_unit;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
- return (0);
+ return 0;
}
#ifdef PNG_FLOATING_POINT_SUPPORTED
@@ -182,21 +191,21 @@ png_get_pixel_aspect_ratio(png_const_structrp png_ptr, png_const_inforp
info_ptr)
{
#ifdef PNG_READ_pHYs_SUPPORTED
+ png_debug(1, "in png_get_pixel_aspect_ratio");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
- png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio");
-
if (info_ptr->x_pixels_per_unit != 0)
- return ((float)((float)info_ptr->y_pixels_per_unit
- /(float)info_ptr->x_pixels_per_unit));
+ return (float)info_ptr->y_pixels_per_unit
+ / (float)info_ptr->x_pixels_per_unit;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
- return ((float)0.0);
+ return (float)0.0;
}
#endif
@@ -206,6 +215,8 @@ png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr,
png_const_inforp info_ptr)
{
#ifdef PNG_READ_pHYs_SUPPORTED
+ png_debug(1, "in png_get_pixel_aspect_ratio_fixed");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0 &&
info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 &&
@@ -214,8 +225,6 @@ png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr,
{
png_fixed_point res;
- png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio_fixed");
-
/* The following casts work because a PNG 4 byte integer only has a valid
* range of 0..2^31-1; otherwise the cast might overflow.
*/
@@ -236,80 +245,80 @@ png_int_32 PNGAPI
png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
+ png_debug(1, "in png_get_x_offset_microns");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0)
{
- png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns");
-
if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
- return (info_ptr->x_offset);
+ return info_ptr->x_offset;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
- return (0);
+ return 0;
}
png_int_32 PNGAPI
png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
+ png_debug(1, "in png_get_y_offset_microns");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0)
{
- png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns");
-
if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
- return (info_ptr->y_offset);
+ return info_ptr->y_offset;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
- return (0);
+ return 0;
}
png_int_32 PNGAPI
png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
+ png_debug(1, "in png_get_x_offset_pixels");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0)
{
- png_debug1(1, "in %s retrieval function", "png_get_x_offset_pixels");
-
if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
- return (info_ptr->x_offset);
+ return info_ptr->x_offset;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
- return (0);
+ return 0;
}
png_int_32 PNGAPI
png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
+ png_debug(1, "in png_get_y_offset_pixels");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0)
{
- png_debug1(1, "in %s retrieval function", "png_get_y_offset_pixels");
-
if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
- return (info_ptr->y_offset);
+ return info_ptr->y_offset;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
- return (0);
+ return 0;
}
#ifdef PNG_INCH_CONVERSIONS_SUPPORTED
@@ -423,11 +432,11 @@ png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
{
png_uint_32 retval = 0;
+ png_debug1(1, "in %s retrieval function", "pHYs");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
- png_debug1(1, "in %s retrieval function", "pHYs");
-
if (res_x != NULL)
{
*res_x = info_ptr->x_pixels_per_unit;
@@ -453,7 +462,7 @@ png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
}
}
- return (retval);
+ return retval;
}
#endif /* pHYs */
#endif /* INCH_CONVERSIONS */
@@ -467,9 +476,9 @@ png_byte PNGAPI
png_get_channels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->channels);
+ return info_ptr->channels;
- return (0);
+ return 0;
}
#ifdef PNG_READ_SUPPORTED
@@ -477,9 +486,9 @@ png_const_bytep PNGAPI
png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->signature);
+ return info_ptr->signature;
- return (NULL);
+ return NULL;
}
#endif
@@ -488,17 +497,17 @@ png_uint_32 PNGAPI
png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
png_color_16p *background)
{
+ png_debug1(1, "in %s retrieval function", "bKGD");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_bKGD) != 0 &&
background != NULL)
{
- png_debug1(1, "in %s retrieval function", "bKGD");
-
*background = &(info_ptr->background);
- return (PNG_INFO_bKGD);
+ return PNG_INFO_bKGD;
}
- return (0);
+ return 0;
}
#endif
@@ -513,6 +522,8 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
double *white_x, double *white_y, double *red_x, double *red_y,
double *green_x, double *green_y, double *blue_x, double *blue_y)
{
+ png_debug1(1, "in %s retrieval function", "cHRM");
+
/* Quiet API change: this code used to only return the end points if a cHRM
* chunk was present, but the end points can also come from iCCP or sRGB
* chunks, so in 1.6.0 the png_get_ APIs return the end points regardless and
@@ -522,8 +533,6 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
- png_debug1(1, "in %s retrieval function", "cHRM");
-
if (white_x != NULL)
*white_x = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.whitex, "cHRM white X");
@@ -548,10 +557,10 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (blue_y != NULL)
*blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey,
"cHRM blue Y");
- return (PNG_INFO_cHRM);
+ return PNG_INFO_cHRM;
}
- return (0);
+ return 0;
}
png_uint_32 PNGAPI
@@ -560,11 +569,11 @@ png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
double *green_Y, double *green_Z, double *blue_X, double *blue_Y,
double *blue_Z)
{
+ png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
- png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
-
if (red_X != NULL)
*red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X,
"cHRM red X");
@@ -592,10 +601,10 @@ png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (blue_Z != NULL)
*blue_Z = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z");
- return (PNG_INFO_cHRM);
+ return PNG_INFO_cHRM;
}
- return (0);
+ return 0;
}
# endif
@@ -608,11 +617,11 @@ png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
png_fixed_point *int_blue_Z)
{
+ png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
- png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
-
if (int_red_X != NULL)
*int_red_X = info_ptr->colorspace.end_points_XYZ.red_X;
if (int_red_Y != NULL)
@@ -631,10 +640,10 @@ png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*int_blue_Y = info_ptr->colorspace.end_points_XYZ.blue_Y;
if (int_blue_Z != NULL)
*int_blue_Z = info_ptr->colorspace.end_points_XYZ.blue_Z;
- return (PNG_INFO_cHRM);
+ return PNG_INFO_cHRM;
}
- return (0);
+ return 0;
}
png_uint_32 PNGAPI
@@ -664,10 +673,10 @@ png_get_cHRM_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*blue_x = info_ptr->colorspace.end_points_xy.bluex;
if (blue_y != NULL)
*blue_y = info_ptr->colorspace.end_points_xy.bluey;
- return (PNG_INFO_cHRM);
+ return PNG_INFO_cHRM;
}
- return (0);
+ return 0;
}
# endif
#endif
@@ -685,10 +694,10 @@ png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
file_gamma != NULL)
{
*file_gamma = info_ptr->colorspace.gamma;
- return (PNG_INFO_gAMA);
+ return PNG_INFO_gAMA;
}
- return (0);
+ return 0;
}
# endif
@@ -705,10 +714,10 @@ png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr,
{
*file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma,
"png_get_gAMA");
- return (PNG_INFO_gAMA);
+ return PNG_INFO_gAMA;
}
- return (0);
+ return 0;
}
# endif
#endif
@@ -724,10 +733,10 @@ png_get_sRGB(png_const_structrp png_ptr, png_const_inforp info_ptr,
(info_ptr->valid & PNG_INFO_sRGB) != 0 && file_srgb_intent != NULL)
{
*file_srgb_intent = info_ptr->colorspace.rendering_intent;
- return (PNG_INFO_sRGB);
+ return PNG_INFO_sRGB;
}
- return (0);
+ return 0;
}
#endif
@@ -751,10 +760,10 @@ png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
*/
if (compression_type != NULL)
*compression_type = PNG_COMPRESSION_TYPE_BASE;
- return (PNG_INFO_iCCP);
+ return PNG_INFO_iCCP;
}
- return (0);
+ return 0;
}
#endif
@@ -764,13 +773,15 @@ int PNGAPI
png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr,
png_sPLT_tpp spalettes)
{
+ png_debug1(1, "in %s retrieval function", "sPLT");
+
if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL)
{
*spalettes = info_ptr->splt_palettes;
return info_ptr->splt_palettes_num;
}
- return (0);
+ return 0;
}
#endif
@@ -796,10 +807,10 @@ png_get_eXIf_1(png_const_structrp png_ptr, png_const_inforp info_ptr,
{
*num_exif = info_ptr->num_exif;
*exif = info_ptr->exif;
- return (PNG_INFO_eXIf);
+ return PNG_INFO_eXIf;
}
- return (0);
+ return 0;
}
#endif
@@ -814,10 +825,10 @@ png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_hIST) != 0 && hist != NULL)
{
*hist = info_ptr->hist;
- return (PNG_INFO_hIST);
+ return PNG_INFO_hIST;
}
- return (0);
+ return 0;
}
#endif
@@ -830,7 +841,7 @@ png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_debug1(1, "in %s retrieval function", "IHDR");
if (png_ptr == NULL || info_ptr == NULL)
- return (0);
+ return 0;
if (width != NULL)
*width = info_ptr->width;
@@ -862,7 +873,7 @@ png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr,
info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type,
info_ptr->compression_type, info_ptr->filter_type);
- return (1);
+ return 1;
}
#ifdef PNG_oFFs_SUPPORTED
@@ -879,10 +890,10 @@ png_get_oFFs(png_const_structrp png_ptr, png_const_inforp info_ptr,
*offset_x = info_ptr->x_offset;
*offset_y = info_ptr->y_offset;
*unit_type = (int)info_ptr->offset_unit_type;
- return (PNG_INFO_oFFs);
+ return PNG_INFO_oFFs;
}
- return (0);
+ return 0;
}
#endif
@@ -906,10 +917,10 @@ png_get_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
*nparams = (int)info_ptr->pcal_nparams;
*units = info_ptr->pcal_units;
*params = info_ptr->pcal_params;
- return (PNG_INFO_pCAL);
+ return PNG_INFO_pCAL;
}
- return (0);
+ return 0;
}
#endif
@@ -921,6 +932,8 @@ png_uint_32 PNGAPI
png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, png_fixed_point *width, png_fixed_point *height)
{
+ png_debug1(1, "in %s retrieval function", "sCAL");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0)
{
@@ -932,10 +945,10 @@ png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width");
*height = png_fixed(png_ptr, atof(info_ptr->scal_s_height),
"sCAL height");
- return (PNG_INFO_sCAL);
+ return PNG_INFO_sCAL;
}
- return(0);
+ return 0;
}
# endif /* FLOATING_ARITHMETIC */
# endif /* FIXED_POINT */
@@ -944,32 +957,36 @@ png_uint_32 PNGAPI
png_get_sCAL(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, double *width, double *height)
{
+ png_debug1(1, "in %s retrieval function", "sCAL(float)");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0)
{
*unit = info_ptr->scal_unit;
*width = atof(info_ptr->scal_s_width);
*height = atof(info_ptr->scal_s_height);
- return (PNG_INFO_sCAL);
+ return PNG_INFO_sCAL;
}
- return(0);
+ return 0;
}
# endif /* FLOATING POINT */
png_uint_32 PNGAPI
png_get_sCAL_s(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, png_charpp width, png_charpp height)
{
+ png_debug1(1, "in %s retrieval function", "sCAL(str)");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0)
{
*unit = info_ptr->scal_unit;
*width = info_ptr->scal_s_width;
*height = info_ptr->scal_s_height;
- return (PNG_INFO_sCAL);
+ return PNG_INFO_sCAL;
}
- return(0);
+ return 0;
}
#endif /* sCAL */
@@ -1004,7 +1021,7 @@ png_get_pHYs(png_const_structrp png_ptr, png_const_inforp info_ptr,
}
}
- return (retval);
+ return retval;
}
#endif /* pHYs */
@@ -1020,10 +1037,10 @@ png_get_PLTE(png_const_structrp png_ptr, png_inforp info_ptr,
*palette = info_ptr->palette;
*num_palette = info_ptr->num_palette;
png_debug1(3, "num_palette = %d", *num_palette);
- return (PNG_INFO_PLTE);
+ return PNG_INFO_PLTE;
}
- return (0);
+ return 0;
}
#ifdef PNG_sBIT_SUPPORTED
@@ -1037,10 +1054,10 @@ png_get_sBIT(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_sBIT) != 0 && sig_bit != NULL)
{
*sig_bit = &(info_ptr->sig_bit);
- return (PNG_INFO_sBIT);
+ return PNG_INFO_sBIT;
}
- return (0);
+ return 0;
}
#endif
@@ -1051,7 +1068,7 @@ png_get_text(png_const_structrp png_ptr, png_inforp info_ptr,
{
if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0)
{
- png_debug1(1, "in 0x%lx retrieval function",
+ png_debug1(1, "in text retrieval function, chunk typeid = 0x%lx",
(unsigned long)png_ptr->chunk_name);
if (text_ptr != NULL)
@@ -1066,7 +1083,7 @@ png_get_text(png_const_structrp png_ptr, png_inforp info_ptr,
if (num_text != NULL)
*num_text = 0;
- return(0);
+ return 0;
}
#endif
@@ -1081,10 +1098,10 @@ png_get_tIME(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_tIME) != 0 && mod_time != NULL)
{
*mod_time = &(info_ptr->mod_time);
- return (PNG_INFO_tIME);
+ return PNG_INFO_tIME;
}
- return (0);
+ return 0;
}
#endif
@@ -1094,11 +1111,12 @@ png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color)
{
png_uint_32 retval = 0;
+
+ png_debug1(1, "in %s retrieval function", "tRNS");
+
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_tRNS) != 0)
{
- png_debug1(1, "in %s retrieval function", "tRNS");
-
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
if (trans_alpha != NULL)
@@ -1130,7 +1148,7 @@ png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr,
}
}
- return (retval);
+ return retval;
}
#endif
@@ -1145,7 +1163,7 @@ png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr,
return info_ptr->unknown_chunks_num;
}
- return (0);
+ return 0;
}
#endif
@@ -1241,7 +1259,7 @@ png_get_palette_max(png_const_structp png_ptr, png_const_infop info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return png_ptr->num_palette_max;
- return (-1);
+ return -1;
}
# endif
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 04:10:00 +0000