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+ make it compile on win32

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This commit is contained in:
Artem Pavlenko 2010-01-09 14:46:38 +00:00
parent 9a9042ce84
commit 230f96b3cf
1 changed files with 20 additions and 17 deletions
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13
include/mapnik/png_io.hpp
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@ -114,7 +114,8 @@ namespace mapnik {
unsigned width = in.width();
unsigned height = in.height();
unsigned alphaCount[alpha.size()];
//unsigned alphaCount[alpha.size()];
std::vector<unsigned> alphaCount(alpha.size());
for(unsigned i=0; i<alpha.size(); i++)
{
alpha[i] = 0;
@ -158,7 +159,8 @@ namespace mapnik {
unsigned width = in.width();
unsigned height = in.height();
unsigned alphaCount[alpha.size()];
//unsigned alphaCount[alpha.size()];
std::vector<unsigned> alphaCount(alpha.size());
for(unsigned i=0; i<alpha.size(); i++)
{
alpha[i] = 0;
@ -249,15 +251,16 @@ namespace mapnik {
// make transparent lowest indexes, so tRNS is small
if (alpha.size()>0)
{
png_byte trans[alpha.size()];
std::vector<png_byte> trans(alpha.size());
unsigned alphaSize=0;//truncate to nonopaque values
for(unsigned i=0; i<alpha.size(); i++){
for(unsigned i=0; i < alpha.size(); i++)
{
trans[i]=alpha[i];
if (alpha[i]<255)
alphaSize = i+1;
}
if (alphaSize>0)
png_set_tRNS(png_ptr, info_ptr, (png_bytep)trans, alphaSize, NULL);
png_set_tRNS(png_ptr, info_ptr, (png_bytep)&trans[0], alphaSize, 0);
}
png_write_info(png_ptr, info_ptr);