63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
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#ifndef DEFOCUS_IMAGE_H
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#define DEFOCUS_IMAGE_H
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/** @file image.h
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* @brief image type and functions
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*/
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#include "base.h"
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/** @brief Opaque rgba8 image object */
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typedef struct df_image df_image;
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/** @brief create an image
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*
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* The contents of the image will be undefined.
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* @param w the image width
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* @param h the image height
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* @param out_image receives the image object
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* @return error code
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*/
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df_result df_create_image(int w, int h, df_image **out_image);
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/** @brief load an image file
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*
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* The image data will be converted to rgba8
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*
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* @param w the image width
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* @param h the image height
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* @param out_image receives the image object
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* @return error code
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*/
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df_result df_load_image(const char *path, int *out_w, int *out_h, df_image **out_image);
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/** @brief Write an image to a PNG file
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* @param img the image
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* @param path the path
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*/
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df_result df_write_image(df_image *img, const char *path);
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/** @brief Free an image.
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*
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* Any pointer to the image will be invalid after this.
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* @param img the image
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*/
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void df_release_image(df_image *img);
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/** @brief Returns the dimensions of the image */
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void df_get_image_size(const df_image *image, int *w, int *h);
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/** @brief Returns the color value at pixel coordinates x, y
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*
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* Returns black for coordinates outside the image.
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*/
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df_color df_get_image_pixel(const df_image *image, int x, int y);
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/** @brief Set the color value at pixel coordinates x, y.
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*
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* Does nothing for coordinates outside the image.
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*/
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void df_set_image_pixel(df_image *image, int x, int y, df_color c);
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#endif
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