Revision: 8116
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8116&view=rev
Author: mdboom
Date: 2010-02-08 15:57:45 +0000 (Mon, 08 Feb 2010)
Log Message:
-----------
Fix for libpng-1.4 compatibility
Modified Paths:
--------------
branches/v0_99_maint/src/_png.cpp
Modified: branches/v0_99_maint/src/_png.cpp
===================================================================
--- branches/v0_99_maint/src/_png.cpp 2010-02-06 23:54:14 UTC (rev 8115)
+++ branches/v0_99_maint/src/_png.cpp 2010-02-08 15:57:45 UTC (rev 8116)
@@ -130,12 +130,12 @@
png_init_io(png_ptr, fp);
} else {
png_set_write_fn(png_ptr, (void*)py_fileobj.ptr(),
- &write_png_data, &flush_png_data);
+ &write_png_data, &flush_png_data);
}
png_set_IHDR(png_ptr, info_ptr,
- width, height, 8,
- PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
+ width, height, 8,
+ PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
+ PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
// Save the dpi of the image in the file
if (args.size() == 5) {
@@ -181,7 +181,7 @@
args.verify_length(1);
std::string fname = Py::String(args[0]);
- png_byte header[8]; // 8 is the maximum size that can be checked
+ png_byte header[8]; // 8 is the maximum size that can be checked
FILE *fp = fopen(fname.c_str(), "rb");
if (!fp)
@@ -272,25 +272,29 @@
for (png_uint_32 y = 0; y < height; y++) {
png_byte* row = row_pointers[y];
- for (png_uint_32 x = 0; x < width; x++) {
- size_t offset = y*A->strides[0] + x*A->strides[1];
- if (bit_depth == 16) {
- png_uint_16* ptr = &reinterpret_cast<png_uint_16*> (row)[x *
dimensions[2]];
+ for (png_uint_32 x = 0; x < width; x++) {
+ size_t offset = y*A->strides[0] + x*A->strides[1];
+ if (bit_depth == 16) {
+ png_uint_16* ptr = &reinterpret_cast<png_uint_16*> (row)[x *
dimensions[2]];
for (png_uint_32 p = 0; p < (png_uint_32)dimensions[2]; p++)
- *(float*)(A->data + offset + p*A->strides[2]) = (float)(ptr[p]) /
max_value;
- } else {
- png_byte* ptr = &(row[x * dimensions[2]]);
- for (png_uint_32 p = 0; p < (png_uint_32)dimensions[2]; p++)
- {
- *(float*)(A->data + offset + p*A->strides[2]) = (float)(ptr[p]) /
max_value;
- }
- }
+ *(float*)(A->data + offset + p*A->strides[2]) = (float)(ptr[p])
/ max_value;
+ } else {
+ png_byte* ptr = &(row[x * dimensions[2]]);
+ for (png_uint_32 p = 0; p < (png_uint_32)dimensions[2]; p++)
+ {
+ *(float*)(A->data + offset + p*A->strides[2]) = (float)(ptr[p])
/ max_value;
+ }
+ }
}
}
//free the png memory
png_read_end(png_ptr, info_ptr);
+#ifndef png_infopp_NULL
+ png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
+#else
png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);
+#endif
fclose(fp);
for (row = 0; row < height; row++)
delete [] row_pointers[row];
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