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- updated to compile compatible with libpng1.5

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This commit is contained in:
Mark Vejvoda
2011-11-14 07:16:51 +00:00
parent 8e9aef2d09
commit 8f2e7ef5af
2 changed files with 21 additions and 16 deletions
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33
source/shared_lib/sources/graphics/PNGReader.cpp
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@@ -93,13 +93,16 @@ Pixmap2D* PNGReader::read(ifstream& is, const string& path, Pixmap2D* ret) const
png_set_sig_bytes(png_ptr, 8);
png_read_info(png_ptr, info_ptr);
int width = info_ptr->width;
int height = info_ptr->height;
int color_type = info_ptr->color_type;
int width = png_get_image_width(png_ptr,info_ptr);
int height = png_get_image_height(png_ptr,info_ptr);
int color_type = png_get_color_type(png_ptr,info_ptr);
//int bit_depth = info_ptr->bit_depth;
//We want RGB, 24 bit
if (color_type == PNG_COLOR_TYPE_PALETTE || (color_type == PNG_COLOR_TYPE_GRAY && info_ptr->bit_depth < 8) || (info_ptr->valid & PNG_INFO_tRNS)) {
if (color_type == PNG_COLOR_TYPE_PALETTE ||
(color_type == PNG_COLOR_TYPE_GRAY && png_get_bit_depth(png_ptr,info_ptr) < 8) ||
(png_get_valid(png_ptr, info_ptr,PNG_INFO_tRNS))) {
png_set_expand(png_ptr);
}
@@ -118,17 +121,17 @@ Pixmap2D* PNGReader::read(ifstream& is, const string& path, Pixmap2D* ret) const
return NULL; //error during read_image
}
for (int y = 0; y < height; ++y) {
row_pointers[y] = new png_byte[info_ptr->rowbytes];
row_pointers[y] = new png_byte[png_get_rowbytes(png_ptr, info_ptr)];
}
png_read_image(png_ptr, row_pointers);
size_t fileComponents = info_ptr->rowbytes/info_ptr->width;
size_t fileComponents = png_get_rowbytes(png_ptr, info_ptr)/width;
size_t picComponents = (ret->getComponents()==-1)?fileComponents:ret->getComponents();
//std::cout << "PNG-Components: Pic: " << picComponents << " old: " << (ret->getComponents()) << " File: " << fileComponents << std::endl;
//picComponents = 4;
//Copy image
ret->init(width,height,(int)picComponents);
uint8* pixels = ret->getPixels();
const size_t rowbytes = info_ptr->rowbytes;
const size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
size_t location = 0;
for (int y = height-1; y >= 0; --y) { //you have to somehow invert the lines
if (picComponents == fileComponents) {
@@ -230,13 +233,15 @@ Pixmap3D* PNGReader3D::read(ifstream& is, const string& path, Pixmap3D* ret) con
png_set_sig_bytes(png_ptr, 8);
png_read_info(png_ptr, info_ptr);
int width = info_ptr->width;
int height = info_ptr->height;
int color_type = info_ptr->color_type;
int width = png_get_image_width(png_ptr,info_ptr);
int height = png_get_image_height(png_ptr,info_ptr);
int color_type = png_get_color_type(png_ptr,info_ptr);
//int bit_depth = info_ptr->bit_depth;
//We want RGB, 24 bit
if (color_type == PNG_COLOR_TYPE_PALETTE || (color_type == PNG_COLOR_TYPE_GRAY && info_ptr->bit_depth < 8) || (info_ptr->valid & PNG_INFO_tRNS)) {
if (color_type == PNG_COLOR_TYPE_PALETTE ||
(color_type == PNG_COLOR_TYPE_GRAY && png_get_bit_depth(png_ptr,info_ptr) < 8) ||
(png_get_valid(png_ptr, info_ptr,PNG_INFO_tRNS))) {
png_set_expand(png_ptr);
}
@@ -255,10 +260,10 @@ Pixmap3D* PNGReader3D::read(ifstream& is, const string& path, Pixmap3D* ret) con
return NULL; //error during read_image
}
for (int y = 0; y < height; ++y) {
row_pointers[y] = new png_byte[info_ptr->rowbytes];
row_pointers[y] = new png_byte[png_get_rowbytes(png_ptr, info_ptr)];
}
png_read_image(png_ptr, row_pointers);
size_t fileComponents = info_ptr->rowbytes/info_ptr->width;
size_t fileComponents = png_get_rowbytes(png_ptr, info_ptr)/width;
size_t picComponents = (ret->getComponents()==-1)?fileComponents:ret->getComponents();
const int d = ret->getD();
const int slice = ret->getSlice();
@@ -275,7 +280,7 @@ Pixmap3D* PNGReader3D::read(ifstream& is, const string& path, Pixmap3D* ret) con
pixels = &pixels[slice*width*height*picComponents];
}
const size_t rowbytes = info_ptr->rowbytes;
const size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
size_t location = 0;
for (int y = height-1; y >= 0; --y) { //you have to somehow invert the lines
if (picComponents == fileComponents) {