6846010416
The only user of that was the background image, and it was flipped again when it was rendered, so the two bugs masked out each other. This adds a `bool flip` to ReadPng and FromPng, since that's cheap to do when writing the PNG file, expensive on the pixel arrays, and sometimes inconvenient in OpenGL due to offsets.
109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
//-----------------------------------------------------------------------------
|
|
// Discovery and loading of our resources (icons, fonts, templates, etc).
|
|
//
|
|
// Copyright 2016 whitequark
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#ifndef __RESOURCE_H
|
|
#define __RESOURCE_H
|
|
|
|
class Camera;
|
|
class Point2d;
|
|
class Pixmap;
|
|
class Vector;
|
|
|
|
// Only the following function is platform-specific.
|
|
// It returns a pointer to resource contents that is aligned to at least
|
|
// sizeof(void*) and has a global lifetime, or NULL if a resource with
|
|
// the specified name does not exist.
|
|
const void *LoadResource(const std::string &name, size_t *size);
|
|
|
|
std::string LoadString(const std::string &name);
|
|
std::string LoadStringFromGzip(const std::string &name);
|
|
std::shared_ptr<Pixmap> LoadPng(const std::string &name);
|
|
|
|
class Pixmap {
|
|
public:
|
|
enum class Format { RGBA, RGB, A };
|
|
|
|
Format format;
|
|
size_t width;
|
|
size_t height;
|
|
size_t stride;
|
|
std::vector<uint8_t> data;
|
|
|
|
static std::shared_ptr<Pixmap> Create(Format format, size_t width, size_t height);
|
|
static std::shared_ptr<Pixmap> FromPng(const uint8_t *data, size_t size, bool flip = false);
|
|
|
|
static std::shared_ptr<Pixmap> ReadPng(FILE *f, bool flip = false);
|
|
bool WritePng(FILE *f, bool flip = false);
|
|
|
|
size_t GetBytesPerPixel() const;
|
|
RgbaColor GetPixel(size_t x, size_t y) const;
|
|
};
|
|
|
|
class BitmapFont {
|
|
public:
|
|
struct Glyph {
|
|
uint8_t advanceCells;
|
|
uint16_t position;
|
|
};
|
|
|
|
std::string unifontData;
|
|
std::map<char32_t, Glyph> glyphs;
|
|
std::shared_ptr<Pixmap> texture;
|
|
uint16_t nextPosition;
|
|
|
|
static BitmapFont From(std::string &&unifontData);
|
|
static BitmapFont *Builtin();
|
|
|
|
bool IsEmpty() const { return unifontData.empty(); }
|
|
const Glyph &GetGlyph(char32_t codepoint);
|
|
bool LocateGlyph(char32_t codepoint, double *s0, double *t0, double *s1, double *t1,
|
|
size_t *advanceWidth, size_t *boundingHeight);
|
|
|
|
void AddGlyph(char32_t codepoint, std::shared_ptr<const Pixmap> pixmap);
|
|
|
|
size_t GetWidth(char32_t codepoint);
|
|
size_t GetWidth(const std::string &str);
|
|
};
|
|
|
|
class VectorFont {
|
|
public:
|
|
struct Contour {
|
|
std::vector<Point2d> points;
|
|
};
|
|
|
|
struct Glyph {
|
|
std::vector<Contour> contours;
|
|
double leftSideBearing;
|
|
double boundingWidth;
|
|
double advanceWidth;
|
|
};
|
|
|
|
std::string lffData;
|
|
std::map<char32_t, Glyph> glyphs;
|
|
double rightSideBearing;
|
|
double capHeight;
|
|
double ascender;
|
|
double descender;
|
|
|
|
static VectorFont From(std::string &&lffData);
|
|
static VectorFont *Builtin();
|
|
|
|
bool IsEmpty() const { return lffData.empty(); }
|
|
const Glyph &GetGlyph(char32_t codepoint);
|
|
|
|
double GetCapHeight(double forCapHeight) const;
|
|
double GetHeight(double forCapHeight) const;
|
|
double GetWidth(double forCapHeight, const std::string &str);
|
|
Vector GetExtents(double forCapHeight, const std::string &str);
|
|
|
|
void Trace(double forCapHeight, Vector o, Vector u, Vector v, const std::string &str,
|
|
std::function<void(Vector, Vector)> traceEdge);
|
|
void Trace(double forCapHeight, Vector o, Vector u, Vector v, const std::string &str,
|
|
std::function<void(Vector, Vector)> traceEdge, const Camera &camera);
|
|
};
|
|
|
|
#endif
|