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Fix some inconsistencies with different versions of libpng.

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This commit is contained in:
Pavel Krajcevski 2012-09-19 18:10:45 -04:00
parent 9fa011f8d1
commit 2fa4da80ed
4 changed files with 11 additions and 6 deletions
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2
BPTCEncoder/src/RGBAEndpoints.cpp
View file

@ -91,7 +91,7 @@ static inline uint32 CountBitsInMask(uint8 n) {
"subl %%ecx, %%eax;"
"movl %%eax, %0;"
: "=Q"(ans)
: "r"(n)
: "b"(n)
: "%eax", "%ecx"
);
return ans;

1
IO/CMakeLists.txt
View file

@ -23,6 +23,7 @@ CONFIGURE_FILE(
INCLUDE_DIRECTORIES( ${TexC_BINARY_DIR}/IO/include )
INCLUDE_DIRECTORIES( ${TexC_SOURCE_DIR}/IO/include )
INCLUDE_DIRECTORIES( ${TexC_SOURCE_DIR}/Core/include )
ADD_LIBRARY(TexCompIO
${SOURCES}

5
IO/config/ImageLoader.h.in
View file

@ -2,13 +2,14 @@
#define _IMAGE_LOADER_H_
#include "ImageFileFormat.h"
#include "TexCompTypes.h"
class ImageLoader {
protected:
unsigned int m_Width;
unsigned int m_Height;
uint32 m_Width;
uint32 m_Height;
unsigned int m_RedChannelPrecision;
unsigned char *m_RedData;

9
IO/src/ImageLoaderPNG.cpp
View file

@ -43,7 +43,10 @@ ImageLoaderPNG::~ImageLoaderPNG() {
bool ImageLoaderPNG::ReadData() {
const int kNumSigBytesToRead = 8;
const int numSigNoMatch = png_sig_cmp(m_RawData, 0, kNumSigBytesToRead);
uint8 pngSigBuf[kNumSigBytesToRead];
memcpy(pngSigBuf, m_RawData, kNumSigBytesToRead);
const int numSigNoMatch = png_sig_cmp(pngSigBuf, 0, kNumSigBytesToRead);
if(numSigNoMatch) {
ReportError("Incorrect PNG signature");
return false;
@ -74,7 +77,7 @@ bool ImageLoaderPNG::ReadData() {
int colorType = -1;
if( 1 != png_get_IHDR(png_ptr, info_ptr,
&m_Width, &m_Height,
(png_uint_32 *)(&m_Width), (png_uint_32 *)(&m_Height),
&bitDepth, &colorType,
NULL, NULL, NULL)
) {
@ -90,7 +93,7 @@ bool ImageLoaderPNG::ReadData() {
}
const int numPixels = m_Width * m_Height;
unsigned int bpr = png_get_rowbytes(png_ptr, info_ptr);
png_uint_32 bpr = png_get_rowbytes(png_ptr, info_ptr);
png_bytep rowData = new png_byte[bpr];
switch(colorType) {