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png.cpp
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2834 lines (2491 loc) · 82.5 KB
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#include <cstdlib>
#include <cstdio>
#include <string>
#include <vector>
#include <unordered_map>
#include "bt.h"
enum pngColorSpaceType : byte {
GrayScale = (byte) 0,
TrueColor = (byte) 2,
Indexed = (byte) 3,
AlphaGrayScale = (byte) 4,
AlphaTrueColor = (byte) 6,
};
std::vector<byte> pngColorSpaceType_values = { GrayScale, TrueColor, Indexed, AlphaGrayScale, AlphaTrueColor };
typedef enum pngColorSpaceType PNG_COLOR_SPACE_TYPE;
std::vector<byte> PNG_COLOR_SPACE_TYPE_values = { GrayScale, TrueColor, Indexed, AlphaGrayScale, AlphaTrueColor };
enum pngCompressionMethod : byte {
Deflate = (byte) 0,
};
std::vector<byte> pngCompressionMethod_values = { Deflate };
typedef enum pngCompressionMethod PNG_COMPR_METHOD;
std::vector<byte> PNG_COMPR_METHOD_values = { Deflate };
enum pngFilterMethod : byte {
AdaptiveFiltering = (byte) 0,
};
std::vector<byte> pngFilterMethod_values = { AdaptiveFiltering };
typedef enum pngFilterMethod PNG_FILTER_METHOD;
std::vector<byte> PNG_FILTER_METHOD_values = { AdaptiveFiltering };
enum pngInterlaceMethod : byte {
NoInterlace = (byte) 0,
Adam7Interlace = (byte) 1,
};
std::vector<byte> pngInterlaceMethod_values = { NoInterlace, Adam7Interlace };
typedef enum pngInterlaceMethod PNG_INTERLACE_METHOD;
std::vector<byte> PNG_INTERLACE_METHOD_values = { NoInterlace, Adam7Interlace };
enum PNG_SRGB_CHUNK_DATA_enum : byte {
Perceptual = (byte) 0,
RelativeColorimetric = (byte) 1,
Saturation = (byte) 2,
AbsoluteColorimetric = (byte) 3,
};
std::vector<byte> PNG_SRGB_CHUNK_DATA_enum_values = { Perceptual, RelativeColorimetric, Saturation, AbsoluteColorimetric };
typedef enum PNG_SRGB_CHUNK_DATA_enum PNG_SRGB_CHUNK_DATA;
std::vector<byte> PNG_SRGB_CHUNK_DATA_values = { Perceptual, RelativeColorimetric, Saturation, AbsoluteColorimetric };
enum APNG_DISPOSE_OP_enum : byte {
APNG_DISPOSE_OP_NONE = (byte) 0,
APNG_DISPOSE_OP_BACKGROUND = (byte) 1,
APNG_DISPOSE_OP_PREVIOUS = (byte) 2,
};
std::vector<byte> APNG_DISPOSE_OP_enum_values = { APNG_DISPOSE_OP_NONE, APNG_DISPOSE_OP_BACKGROUND, APNG_DISPOSE_OP_PREVIOUS };
typedef enum APNG_DISPOSE_OP_enum APNG_DISPOSE_OP;
std::vector<byte> APNG_DISPOSE_OP_values = { APNG_DISPOSE_OP_NONE, APNG_DISPOSE_OP_BACKGROUND, APNG_DISPOSE_OP_PREVIOUS };
enum APNG_BLEND_OP_enum : byte {
APNG_BLEND_OP_SOURCE = (byte) 0,
APNG_BLEND_OP_OVER = (byte) 1,
};
std::vector<byte> APNG_BLEND_OP_enum_values = { APNG_BLEND_OP_SOURCE, APNG_BLEND_OP_OVER };
typedef enum APNG_BLEND_OP_enum APNG_BLEND_OP;
std::vector<byte> APNG_BLEND_OP_values = { APNG_BLEND_OP_SOURCE, APNG_BLEND_OP_OVER };
class uint16_class {
int small;
std::vector<uint16> known_values;
uint16 value;
public:
int64 _startof = 0;
std::size_t _sizeof = sizeof(uint16);
uint16 operator () () { return value; }
uint16_class(int small, std::vector<uint16> known_values = {}) : small(small), known_values(known_values) {}
uint16 generate() {
_startof = FTell();
if (known_values.empty()) {
value = file_acc.file_integer(sizeof(uint16), 0, small);
} else {
value = file_acc.file_integer(sizeof(uint16), 0, known_values);
}
return value;
}
uint16 generate(std::vector<uint16> possible_values) {
_startof = FTell();
value = file_acc.file_integer(sizeof(uint16), 0, possible_values);
return value;
}
};
class uint16_array_class {
uint16_class& element;
std::unordered_map<int, std::vector<uint16>> element_known_values;
std::vector<uint16> value;
public:
int64 _startof = 0;
std::size_t _sizeof = 0;
std::vector<uint16> operator () () { return value; }
uint16 operator [] (int index) {
assert_cond((unsigned)index < value.size(), "array index out of bounds");
return value[index];
}
uint16_array_class(uint16_class& element, std::unordered_map<int, std::vector<uint16>> element_known_values = {})
: element(element), element_known_values(element_known_values) {}
std::vector<uint16> generate(unsigned size) {
check_array_length(size);
_startof = FTell();
value = {};
for (unsigned i = 0; i < size; ++i) {
auto known = element_known_values.find(i);
if (known == element_known_values.end()) {
value.push_back(element.generate());
_sizeof += element._sizeof;
} else {
value.push_back(file_acc.file_integer(sizeof(uint16), 0, known->second));
_sizeof += sizeof(uint16);
}
}
return value;
}
};
class PNG_SIGNATURE {
std::vector<PNG_SIGNATURE*>& instances;
std::vector<uint16> btPngSignature_var;
public:
bool btPngSignature_exists = false;
std::vector<uint16> btPngSignature() {
assert_cond(btPngSignature_exists, "struct field btPngSignature does not exist");
return btPngSignature_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_SIGNATURE& operator () () { return *instances.back(); }
PNG_SIGNATURE* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_SIGNATURE(std::vector<PNG_SIGNATURE*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_SIGNATURE() {
if (generated == 2)
return;
while (instances.size()) {
PNG_SIGNATURE* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_SIGNATURE* generate();
};
class uint32_class {
int small;
std::vector<uint32> known_values;
uint32 value;
public:
int64 _startof = 0;
std::size_t _sizeof = sizeof(uint32);
uint32 operator () () { return value; }
uint32_class(int small, std::vector<uint32> known_values = {}) : small(small), known_values(known_values) {}
uint32 generate() {
_startof = FTell();
if (known_values.empty()) {
value = file_acc.file_integer(sizeof(uint32), 0, small);
} else {
value = file_acc.file_integer(sizeof(uint32), 0, known_values);
}
return value;
}
uint32 generate(std::vector<uint32> possible_values) {
_startof = FTell();
value = file_acc.file_integer(sizeof(uint32), 0, possible_values);
return value;
}
};
class char_class {
int small;
std::vector<char> known_values;
char value;
public:
int64 _startof = 0;
std::size_t _sizeof = sizeof(char);
char operator () () { return value; }
char_class(int small, std::vector<char> known_values = {}) : small(small), known_values(known_values) {}
char generate() {
_startof = FTell();
if (known_values.empty()) {
value = file_acc.file_integer(sizeof(char), 0, small);
} else {
value = file_acc.file_integer(sizeof(char), 0, known_values);
}
return value;
}
char generate(std::vector<char> possible_values) {
_startof = FTell();
value = file_acc.file_integer(sizeof(char), 0, possible_values);
return value;
}
};
class char_array_class {
char_class& element;
std::vector<std::string> known_values;
std::unordered_map<int, std::vector<char>> element_known_values;
std::string value;
public:
int64 _startof = 0;
std::size_t _sizeof = 0;
std::string operator () () { return value; }
char operator [] (int index) {
assert_cond((unsigned)index < value.size(), "array index out of bounds");
return value[index];
}
char_array_class(char_class& element, std::unordered_map<int, std::vector<char>> element_known_values = {})
: element(element), element_known_values(element_known_values) {}
char_array_class(char_class& element, std::vector<std::string> known_values)
: element(element), known_values(known_values) {}
std::string generate(unsigned size, std::vector<std::string> possible_values = {}) {
check_array_length(size);
_startof = FTell();
value = "";
if (possible_values.size()) {
value = file_acc.file_string(possible_values);
assert(value.length() == size);
_sizeof = size;
return value;
}
if (known_values.size()) {
value = file_acc.file_string(known_values);
assert(value.length() == size);
_sizeof = size;
return value;
}
if (!element_known_values.size()) {
if (size == 0)
return "";
value = file_acc.file_string(size);
_sizeof = size;
return value;
}
for (unsigned i = 0; i < size; ++i) {
auto known = element_known_values.find(i);
if (known == element_known_values.end()) {
value.push_back(element.generate());
_sizeof += element._sizeof;
} else {
value.push_back(file_acc.file_integer(sizeof(char), 0, known->second));
_sizeof += sizeof(char);
}
}
return value;
}
};
class CTYPE {
std::vector<CTYPE*>& instances;
// union {
std::string cname_var;
uint32 ctype_var;
// };
public:
bool cname_exists = false;
bool ctype_exists = false;
std::string cname() {
assert_cond(cname_exists, "struct field cname does not exist");
return cname_var;
}
uint32 ctype() {
assert_cond(ctype_exists, "struct field ctype does not exist");
return ctype_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
CTYPE& operator () () { return *instances.back(); }
CTYPE* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
CTYPE(std::vector<CTYPE*>& instances) : instances(instances) { instances.push_back(this); }
~CTYPE() {
if (generated == 2)
return;
while (instances.size()) {
CTYPE* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
CTYPE* generate();
};
const std::vector<byte> color_types = { GrayScale, TrueColor, Indexed, AlphaGrayScale, AlphaTrueColor };
class ubyte_class {
int small;
std::vector<ubyte> known_values;
ubyte value;
public:
int64 _startof = 0;
std::size_t _sizeof = sizeof(ubyte);
ubyte operator () () { return value; }
ubyte_class(int small, std::vector<ubyte> known_values = {}) : small(small), known_values(known_values) {}
ubyte generate() {
_startof = FTell();
if (known_values.empty()) {
value = file_acc.file_integer(sizeof(ubyte), 0, small);
} else {
value = file_acc.file_integer(sizeof(ubyte), 0, known_values);
}
return value;
}
ubyte generate(std::vector<ubyte> possible_values) {
_startof = FTell();
value = file_acc.file_integer(sizeof(ubyte), 0, possible_values);
return value;
}
};
PNG_COLOR_SPACE_TYPE PNG_COLOR_SPACE_TYPE_generate() {
return (PNG_COLOR_SPACE_TYPE) file_acc.file_integer(sizeof(byte), 0, PNG_COLOR_SPACE_TYPE_values);
}
PNG_COLOR_SPACE_TYPE PNG_COLOR_SPACE_TYPE_generate(std::vector<byte> known_values) {
return (PNG_COLOR_SPACE_TYPE) file_acc.file_integer(sizeof(byte), 0, known_values);
}
PNG_COMPR_METHOD PNG_COMPR_METHOD_generate() {
return (PNG_COMPR_METHOD) file_acc.file_integer(sizeof(byte), 0, PNG_COMPR_METHOD_values);
}
PNG_COMPR_METHOD PNG_COMPR_METHOD_generate(std::vector<byte> known_values) {
return (PNG_COMPR_METHOD) file_acc.file_integer(sizeof(byte), 0, known_values);
}
PNG_FILTER_METHOD PNG_FILTER_METHOD_generate() {
return (PNG_FILTER_METHOD) file_acc.file_integer(sizeof(byte), 0, PNG_FILTER_METHOD_values);
}
PNG_FILTER_METHOD PNG_FILTER_METHOD_generate(std::vector<byte> known_values) {
return (PNG_FILTER_METHOD) file_acc.file_integer(sizeof(byte), 0, known_values);
}
PNG_INTERLACE_METHOD PNG_INTERLACE_METHOD_generate() {
return (PNG_INTERLACE_METHOD) file_acc.file_integer(sizeof(byte), 0, PNG_INTERLACE_METHOD_values);
}
PNG_INTERLACE_METHOD PNG_INTERLACE_METHOD_generate(std::vector<byte> known_values) {
return (PNG_INTERLACE_METHOD) file_acc.file_integer(sizeof(byte), 0, known_values);
}
class PNG_CHUNK_IHDR {
std::vector<PNG_CHUNK_IHDR*>& instances;
uint32 width_var;
uint32 height_var;
ubyte bits_var;
byte color_type_var;
byte compr_method_var;
byte filter_method_var;
byte interlace_method_var;
public:
bool width_exists = false;
bool height_exists = false;
bool bits_exists = false;
bool color_type_exists = false;
bool compr_method_exists = false;
bool filter_method_exists = false;
bool interlace_method_exists = false;
uint32 width() {
assert_cond(width_exists, "struct field width does not exist");
return width_var;
}
uint32 height() {
assert_cond(height_exists, "struct field height does not exist");
return height_var;
}
ubyte bits() {
assert_cond(bits_exists, "struct field bits does not exist");
return bits_var;
}
byte color_type() {
assert_cond(color_type_exists, "struct field color_type does not exist");
return color_type_var;
}
byte compr_method() {
assert_cond(compr_method_exists, "struct field compr_method does not exist");
return compr_method_var;
}
byte filter_method() {
assert_cond(filter_method_exists, "struct field filter_method does not exist");
return filter_method_var;
}
byte interlace_method() {
assert_cond(interlace_method_exists, "struct field interlace_method does not exist");
return interlace_method_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_CHUNK_IHDR& operator () () { return *instances.back(); }
PNG_CHUNK_IHDR* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_CHUNK_IHDR(std::vector<PNG_CHUNK_IHDR*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_CHUNK_IHDR() {
if (generated == 2)
return;
while (instances.size()) {
PNG_CHUNK_IHDR* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_CHUNK_IHDR* generate();
};
class string_class {
std::vector<std::string> known_values;
std::string value;
public:
int64 _startof = 0;
std::size_t _sizeof = 0;
std::string operator () () { return value; }
string_class(std::vector<std::string> known_values = {}) : known_values(known_values) {}
std::string generate() {
_startof = FTell();
if (known_values.empty()) {
value = file_acc.file_string();
} else {
value = file_acc.file_string(known_values);
}
_sizeof = value.length() + 1;
return value;
}
};
class PNG_CHUNK_TEXT {
std::vector<PNG_CHUNK_TEXT*>& instances;
std::string label_var;
std::string data_var;
public:
bool label_exists = false;
bool data_exists = false;
std::string label() {
assert_cond(label_exists, "struct field label does not exist");
return label_var;
}
std::string data() {
assert_cond(data_exists, "struct field data does not exist");
return data_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_CHUNK_TEXT& operator () () { return *instances.back(); }
PNG_CHUNK_TEXT* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_CHUNK_TEXT(std::vector<PNG_CHUNK_TEXT*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_CHUNK_TEXT() {
if (generated == 2)
return;
while (instances.size()) {
PNG_CHUNK_TEXT* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_CHUNK_TEXT* generate();
};
class byte_class {
int small;
std::vector<byte> known_values;
byte value;
public:
int64 _startof = 0;
std::size_t _sizeof = sizeof(byte);
byte operator () () { return value; }
byte_class(int small, std::vector<byte> known_values = {}) : small(small), known_values(known_values) {}
byte generate() {
_startof = FTell();
if (known_values.empty()) {
value = file_acc.file_integer(sizeof(byte), 0, small);
} else {
value = file_acc.file_integer(sizeof(byte), 0, known_values);
}
return value;
}
byte generate(std::vector<byte> possible_values) {
_startof = FTell();
value = file_acc.file_integer(sizeof(byte), 0, possible_values);
return value;
}
};
class PNG_PALETTE_PIXEL {
std::vector<PNG_PALETTE_PIXEL*>& instances;
byte btRed_var;
byte btGreen_var;
byte btBlue_var;
public:
bool btRed_exists = false;
bool btGreen_exists = false;
bool btBlue_exists = false;
byte btRed() {
assert_cond(btRed_exists, "struct field btRed does not exist");
return btRed_var;
}
byte btGreen() {
assert_cond(btGreen_exists, "struct field btGreen does not exist");
return btGreen_var;
}
byte btBlue() {
assert_cond(btBlue_exists, "struct field btBlue does not exist");
return btBlue_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_PALETTE_PIXEL& operator () () { return *instances.back(); }
PNG_PALETTE_PIXEL* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_PALETTE_PIXEL(std::vector<PNG_PALETTE_PIXEL*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_PALETTE_PIXEL() {
if (generated == 2)
return;
while (instances.size()) {
PNG_PALETTE_PIXEL* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_PALETTE_PIXEL* generate();
};
class PNG_PALETTE_PIXEL_array_class {
PNG_PALETTE_PIXEL& element;
std::vector<PNG_PALETTE_PIXEL*> value;
public:
int64 _startof = 0;
std::size_t _sizeof = 0;
std::vector<PNG_PALETTE_PIXEL*> operator () () { return value; }
PNG_PALETTE_PIXEL operator [] (int index) {
assert_cond((unsigned)index < value.size(), "array index out of bounds");
return *value[index];
}
PNG_PALETTE_PIXEL_array_class(PNG_PALETTE_PIXEL& element) : element(element) {}
std::vector<PNG_PALETTE_PIXEL*> generate(unsigned size) {
check_array_length(size);
_startof = FTell();
value = {};
for (unsigned i = 0; i < size; ++i) {
value.push_back(element.generate());
_sizeof += element._sizeof;
}
return value;
}
};
class PNG_CHUNK_PLTE {
std::vector<PNG_CHUNK_PLTE*>& instances;
std::vector<PNG_PALETTE_PIXEL*> plteChunkData_var;
public:
bool plteChunkData_exists = false;
std::vector<PNG_PALETTE_PIXEL*> plteChunkData() {
assert_cond(plteChunkData_exists, "struct field plteChunkData does not exist");
return plteChunkData_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_CHUNK_PLTE& operator () () { return *instances.back(); }
PNG_CHUNK_PLTE* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_CHUNK_PLTE(std::vector<PNG_CHUNK_PLTE*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_CHUNK_PLTE() {
if (generated == 2)
return;
while (instances.size()) {
PNG_CHUNK_PLTE* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_CHUNK_PLTE* generate(int32 chunkLen);
};
class PNG_POINT {
std::vector<PNG_POINT*>& instances;
uint32 x_var;
uint32 y_var;
public:
bool x_exists = false;
bool y_exists = false;
uint32 x() {
assert_cond(x_exists, "struct field x does not exist");
return x_var;
}
uint32 y() {
assert_cond(y_exists, "struct field y does not exist");
return y_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_POINT& operator () () { return *instances.back(); }
PNG_POINT* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_POINT(std::vector<PNG_POINT*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_POINT() {
if (generated == 2)
return;
while (instances.size()) {
PNG_POINT* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_POINT* generate();
};
class PNG_CHUNK_CHRM {
std::vector<PNG_CHUNK_CHRM*>& instances;
PNG_POINT* white_var;
PNG_POINT* red_var;
PNG_POINT* green_var;
PNG_POINT* blue_var;
public:
bool white_exists = false;
bool red_exists = false;
bool green_exists = false;
bool blue_exists = false;
PNG_POINT& white() {
assert_cond(white_exists, "struct field white does not exist");
return *white_var;
}
PNG_POINT& red() {
assert_cond(red_exists, "struct field red does not exist");
return *red_var;
}
PNG_POINT& green() {
assert_cond(green_exists, "struct field green does not exist");
return *green_var;
}
PNG_POINT& blue() {
assert_cond(blue_exists, "struct field blue does not exist");
return *blue_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_CHUNK_CHRM& operator () () { return *instances.back(); }
PNG_CHUNK_CHRM* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_CHUNK_CHRM(std::vector<PNG_CHUNK_CHRM*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_CHUNK_CHRM() {
if (generated == 2)
return;
while (instances.size()) {
PNG_CHUNK_CHRM* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_CHUNK_CHRM* generate();
};
PNG_SRGB_CHUNK_DATA PNG_SRGB_CHUNK_DATA_generate() {
return (PNG_SRGB_CHUNK_DATA) file_acc.file_integer(sizeof(byte), 0, PNG_SRGB_CHUNK_DATA_values);
}
PNG_SRGB_CHUNK_DATA PNG_SRGB_CHUNK_DATA_generate(std::vector<byte> known_values) {
return (PNG_SRGB_CHUNK_DATA) file_acc.file_integer(sizeof(byte), 0, known_values);
}
class PNG_CHUNK_SRGB {
std::vector<PNG_CHUNK_SRGB*>& instances;
byte srgbChunkData_var;
public:
bool srgbChunkData_exists = false;
byte srgbChunkData() {
assert_cond(srgbChunkData_exists, "struct field srgbChunkData does not exist");
return srgbChunkData_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_CHUNK_SRGB& operator () () { return *instances.back(); }
PNG_CHUNK_SRGB* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_CHUNK_SRGB(std::vector<PNG_CHUNK_SRGB*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_CHUNK_SRGB() {
if (generated == 2)
return;
while (instances.size()) {
PNG_CHUNK_SRGB* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_CHUNK_SRGB* generate();
};
class PNG_CHUNK_IEXT {
std::vector<PNG_CHUNK_IEXT*>& instances;
std::string iextIdChunkData_var;
byte iextCompressionFlag_var;
byte iextComprMethod_var;
std::string iextLanguageTag_var;
std::string iextTranslatedKeyword_var;
std::string iextValChunkData_var;
public:
bool iextIdChunkData_exists = false;
bool iextCompressionFlag_exists = false;
bool iextComprMethod_exists = false;
bool iextLanguageTag_exists = false;
bool iextTranslatedKeyword_exists = false;
bool iextValChunkData_exists = false;
std::string iextIdChunkData() {
assert_cond(iextIdChunkData_exists, "struct field iextIdChunkData does not exist");
return iextIdChunkData_var;
}
byte iextCompressionFlag() {
assert_cond(iextCompressionFlag_exists, "struct field iextCompressionFlag does not exist");
return iextCompressionFlag_var;
}
byte iextComprMethod() {
assert_cond(iextComprMethod_exists, "struct field iextComprMethod does not exist");
return iextComprMethod_var;
}
std::string iextLanguageTag() {
assert_cond(iextLanguageTag_exists, "struct field iextLanguageTag does not exist");
return iextLanguageTag_var;
}
std::string iextTranslatedKeyword() {
assert_cond(iextTranslatedKeyword_exists, "struct field iextTranslatedKeyword does not exist");
return iextTranslatedKeyword_var;
}
std::string iextValChunkData() {
assert_cond(iextValChunkData_exists, "struct field iextValChunkData does not exist");
return iextValChunkData_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_CHUNK_IEXT& operator () () { return *instances.back(); }
PNG_CHUNK_IEXT* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_CHUNK_IEXT(std::vector<PNG_CHUNK_IEXT*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_CHUNK_IEXT() {
if (generated == 2)
return;
while (instances.size()) {
PNG_CHUNK_IEXT* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_CHUNK_IEXT* generate(int32 chunkLen);
};
class PNG_CHUNK_ZEXT {
std::vector<PNG_CHUNK_ZEXT*>& instances;
std::string zextIdChunkData_var;
byte comprMethod_var;
std::string zextValChunkData_var;
public:
bool zextIdChunkData_exists = false;
bool comprMethod_exists = false;
bool zextValChunkData_exists = false;
std::string zextIdChunkData() {
assert_cond(zextIdChunkData_exists, "struct field zextIdChunkData does not exist");
return zextIdChunkData_var;
}
byte comprMethod() {
assert_cond(comprMethod_exists, "struct field comprMethod does not exist");
return comprMethod_var;
}
std::string zextValChunkData() {
assert_cond(zextValChunkData_exists, "struct field zextValChunkData does not exist");
return zextValChunkData_var;
}
unsigned char generated = 0;
int64 _startof = 0;
std::size_t _sizeof = 0;
PNG_CHUNK_ZEXT& operator () () { return *instances.back(); }
PNG_CHUNK_ZEXT* operator [] (int index) {
assert_cond((unsigned)index < instances.size(), "instance index out of bounds");
return instances[index];
}
PNG_CHUNK_ZEXT(std::vector<PNG_CHUNK_ZEXT*>& instances) : instances(instances) { instances.push_back(this); }
~PNG_CHUNK_ZEXT() {
if (generated == 2)
return;
while (instances.size()) {
PNG_CHUNK_ZEXT* instance = instances.back();
instances.pop_back();
if (instance->generated == 2)
delete instance;
}
}
PNG_CHUNK_ZEXT* generate(int32 chunkLen);
};
class int16_class {
int small;
std::vector<int16> known_values;
int16 value;
public:
int64 _startof = 0;
std::size_t _sizeof = sizeof(int16);
int16 operator () () { return value; }
int16_class(int small, std::vector<int16> known_values = {}) : small(small), known_values(known_values) {}
int16 generate() {
_startof = FTell();
if (known_values.empty()) {
value = file_acc.file_integer(sizeof(int16), 0, small);
} else {
value = file_acc.file_integer(sizeof(int16), 0, known_values);
}
return value;
}
int16 generate(std::vector<int16> possible_values) {
_startof = FTell();
value = file_acc.file_integer(sizeof(int16), 0, possible_values);
return value;
}
};
class PNG_CHUNK_TIME {
std::vector<PNG_CHUNK_TIME*>& instances;
int16 timeYear_var;
byte timeMonth_var;
byte timeDay_var;
byte timeHour_var;
byte timeMin_var;
byte timeSec_var;
public:
bool timeYear_exists = false;
bool timeMonth_exists = false;
bool timeDay_exists = false;
bool timeHour_exists = false;
bool timeMin_exists = false;
bool timeSec_exists = false;
int16 timeYear() {
assert_cond(timeYear_exists, "struct field timeYear does not exist");
return timeYear_var;
}
byte timeMonth() {
assert_cond(timeMonth_exists, "struct field timeMonth does not exist");
return timeMonth_var;
}
byte timeDay() {
assert_cond(timeDay_exists, "struct field timeDay does not exist");
return timeDay_var;
}
byte timeHour() {
assert_cond(timeHour_exists, "struct field timeHour does not exist");
return timeHour_var;
}