image.hpp

Go to the documentation of this file.

/* BSD 3-Clause License
 *
 * Copyright © 2008-2025, Jice and the libtcod contributors.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
// clang-format off
#pragma once
#ifndef TCOD_IMAGE_HPP_
#define TCOD_IMAGE_HPP_
 
#include "color.hpp"
 
#include "console.hpp"
#include "image.h"
#include "matrix.hpp"
 
namespace tcod {
struct ImageDeleter {
  void operator()(TCOD_Image* image) const { TCOD_image_delete(image); }
};

typedef std::unique_ptr<TCOD_Image, ImageDeleter> ImagePtr;
}  // namespace tcod
class TCODConsole;
 
class TCODLIB_API TCODImage {
public :

  TCODImage() noexcept = default;

  TCODImage(int width, int height);

  TCODImage(const char *filename);

  TCODImage(const TCODConsole *console);
 

  TCODImage(tcod::ImagePtr image) noexcept: data{image.release()}, deleteData{true} {};
 
  TCODImage(const TCODImage&) = delete;
  TCODImage& operator=(const TCODImage&) = delete;
  TCODImage(TCODImage&& rhs) noexcept {
    std::swap(data, rhs.data);
    std::swap(deleteData, rhs.deleteData);
  };
  TCODImage& operator=(TCODImage&& rhs) noexcept {
    std::swap(data, rhs.data);
    std::swap(deleteData, rhs.deleteData);
    return *this;
  };
 
  // clang-format on

  explicit TCODImage(const tcod::Matrix<TCOD_ColorRGB, 2>& pixels)
      : TCODImage(pixels.get_shape().at(0), pixels.get_shape().at(1)) {
    for (int y = 0; y < pixels.get_shape().at(1); ++y) {
      for (int x = 0; x < pixels.get_shape().at(0); ++x) {
        putPixel(x, y, pixels[{x, y}]);
      }
    }
  }
  // clang-format off

  void refreshConsole(const TCODConsole *console);

  void getSize(int *w,int *h) const;
 

  [[nodiscard]] auto getSize() const noexcept -> std::array<int, 2> {
    std::array<int, 2> out{};
    TCOD_image_get_size(data, &out[0], &out[1]);
    return out;
  }

  TCODColor getPixel(int x, int y) const;

  int getAlpha(int x,int y) const;

    bool isPixelTransparent(int x, int y) const;

    TCODColor getMipmapPixel(float x0,float y0, float x1, float y1);

  void clear(const TCODColor col);

  void putPixel(int x, int y, const TCODColor col);

  void scale(int new_w, int new_h);

  void hflip();

  void vflip();

  void rotate90(int numRotations=1);

  void invert();

  void save(const char *filename) const;

  void blitRect(TCODConsole *console, int x, int y, int w=-1, int h=-1, TCOD_bkgnd_flag_t bkgnd_flag = TCOD_BKGND_SET ) const;
  void blitRect(TCOD_Console &console, int x, int y, int w=-1, int h=-1, TCOD_bkgnd_flag_t bkgnd_flag = TCOD_BKGND_SET ) const {
    TCOD_image_blit_rect(data, &console, x, y, w, h, bkgnd_flag);
  }

  void blit(TCODConsole *console, float x, float y, TCOD_bkgnd_flag_t bkgnd_flag = TCOD_BKGND_SET, float scale_x=1.0f, float scale_y=1.0f, float angle=0.0f) const;
  void blit(TCOD_Console& console, float x, float y, TCOD_bkgnd_flag_t bkgnd_flag = TCOD_BKGND_SET, float scale_x=1.0f, float scale_y=1.0f, float angle=0.0f) const {
    TCOD_image_blit(data, &console, x, y, bkgnd_flag, scale_x, scale_y, angle);
  }

  void setKeyColor(const TCODColor keyColor);

  void blit2x(TCODConsole *dest, int dx, int dy, int sx=0, int sy=0, int w=-1, int h=-1) const;
  [[deprecated("This call is replaced by tcod::draw_quartergraphics.")]]
  void blit2x(TCOD_Console& dest, int dx, int dy, int sx=0, int sy=0, int w=-1, int h=-1) const {
    TCOD_image_blit_2x(data, &dest, dx, dy, sx, sy, w, h);
  }

  TCOD_Image* get_data() noexcept { return data; }
  const TCOD_Image* get_data() const noexcept { return data; }
 
  [[deprecated("This only makes a reference to the image data."
               "  If you intended to pass ownership then use `TCODImage{tcod::ImagePtr{image_ptr}}`")]]
  TCODImage(TCOD_image_t img) : data(img), deleteData(false) {}
  virtual ~TCODImage();

  [[nodiscard]] operator TCOD_Image&() { return *data; }

  [[nodiscard]] operator const TCOD_Image&() const { return *data; }
 
protected :
  struct TCOD_Image *data{nullptr};
  bool deleteData{false};
};
// clang-format on
namespace tcod {

inline void draw_quartergraphics(
    TCOD_Console& dest,
    const TCOD_Image& source,
    const std::array<int, 2>& dest_xy = {0, 0},
    const std::array<int, 4>& src_rect = {0, 0, -1, -1}) {
  TCOD_image_blit_2x(
      &source, &dest, dest_xy.at(0), dest_xy.at(1), src_rect.at(0), src_rect.at(1), src_rect.at(2), src_rect.at(3));
}
}  // namespace tcod
#endif  // TCOD_IMAGE_HPP_