SOIL Image size












1















Can I somehow get size of an image (of any SOIL supports)?



I know that there are different headers in image files which define these sizes. But is there any function from SOIL to get image size?










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    1















    Can I somehow get size of an image (of any SOIL supports)?



    I know that there are different headers in image files which define these sizes. But is there any function from SOIL to get image size?










    share|improve this question



























      1












      1








      1








      Can I somehow get size of an image (of any SOIL supports)?



      I know that there are different headers in image files which define these sizes. But is there any function from SOIL to get image size?










      share|improve this question
















      Can I somehow get size of an image (of any SOIL supports)?



      I know that there are different headers in image files which define these sizes. But is there any function from SOIL to get image size?







      c++ opengl soil






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 19 '18 at 21:26









      Nicol Bolas

      286k33474648




      286k33474648










      asked Nov 19 '18 at 20:38









      V. DalechinV. Dalechin

      666




      666
























          1 Answer
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          1














          SOIL_load_image() will populate the width/height parameters with the dimensions of the image, though it does a full load of the image to do so:



          /**
          Loads an image from disk into an array of unsigned chars.
          Note that *channels return the original channel count of the
          image. If force_channels was other than SOIL_LOAD_AUTO,
          the resulting image has force_channels, but *channels may be
          different (if the original image had a different channel
          count).
          return 0 if failed, otherwise returns 1
          **/
          unsigned char*
          SOIL_load_image
          (
          const char *filename,
          int *width, int *height, int *channels,
          int force_channels
          );


          The underlying stb_image.h has routines that don't load the full image:



          // get image dimensions & components without fully decoding
          STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
          STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
          STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len);
          STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user);

          #ifndef STBI_NO_STDIO
          STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp);
          STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp);
          STBIDEF int stbi_is_16_bit (char const *filename);
          STBIDEF int stbi_is_16_bit_from_file(FILE *f);
          #endif





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            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

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            active

            oldest

            votes






            active

            oldest

            votes









            1














            SOIL_load_image() will populate the width/height parameters with the dimensions of the image, though it does a full load of the image to do so:



            /**
            Loads an image from disk into an array of unsigned chars.
            Note that *channels return the original channel count of the
            image. If force_channels was other than SOIL_LOAD_AUTO,
            the resulting image has force_channels, but *channels may be
            different (if the original image had a different channel
            count).
            return 0 if failed, otherwise returns 1
            **/
            unsigned char*
            SOIL_load_image
            (
            const char *filename,
            int *width, int *height, int *channels,
            int force_channels
            );


            The underlying stb_image.h has routines that don't load the full image:



            // get image dimensions & components without fully decoding
            STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
            STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
            STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len);
            STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user);

            #ifndef STBI_NO_STDIO
            STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp);
            STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp);
            STBIDEF int stbi_is_16_bit (char const *filename);
            STBIDEF int stbi_is_16_bit_from_file(FILE *f);
            #endif





            share|improve this answer




























              1














              SOIL_load_image() will populate the width/height parameters with the dimensions of the image, though it does a full load of the image to do so:



              /**
              Loads an image from disk into an array of unsigned chars.
              Note that *channels return the original channel count of the
              image. If force_channels was other than SOIL_LOAD_AUTO,
              the resulting image has force_channels, but *channels may be
              different (if the original image had a different channel
              count).
              return 0 if failed, otherwise returns 1
              **/
              unsigned char*
              SOIL_load_image
              (
              const char *filename,
              int *width, int *height, int *channels,
              int force_channels
              );


              The underlying stb_image.h has routines that don't load the full image:



              // get image dimensions & components without fully decoding
              STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
              STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
              STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len);
              STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user);

              #ifndef STBI_NO_STDIO
              STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp);
              STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp);
              STBIDEF int stbi_is_16_bit (char const *filename);
              STBIDEF int stbi_is_16_bit_from_file(FILE *f);
              #endif





              share|improve this answer


























                1












                1








                1







                SOIL_load_image() will populate the width/height parameters with the dimensions of the image, though it does a full load of the image to do so:



                /**
                Loads an image from disk into an array of unsigned chars.
                Note that *channels return the original channel count of the
                image. If force_channels was other than SOIL_LOAD_AUTO,
                the resulting image has force_channels, but *channels may be
                different (if the original image had a different channel
                count).
                return 0 if failed, otherwise returns 1
                **/
                unsigned char*
                SOIL_load_image
                (
                const char *filename,
                int *width, int *height, int *channels,
                int force_channels
                );


                The underlying stb_image.h has routines that don't load the full image:



                // get image dimensions & components without fully decoding
                STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
                STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
                STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len);
                STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user);

                #ifndef STBI_NO_STDIO
                STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp);
                STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp);
                STBIDEF int stbi_is_16_bit (char const *filename);
                STBIDEF int stbi_is_16_bit_from_file(FILE *f);
                #endif





                share|improve this answer













                SOIL_load_image() will populate the width/height parameters with the dimensions of the image, though it does a full load of the image to do so:



                /**
                Loads an image from disk into an array of unsigned chars.
                Note that *channels return the original channel count of the
                image. If force_channels was other than SOIL_LOAD_AUTO,
                the resulting image has force_channels, but *channels may be
                different (if the original image had a different channel
                count).
                return 0 if failed, otherwise returns 1
                **/
                unsigned char*
                SOIL_load_image
                (
                const char *filename,
                int *width, int *height, int *channels,
                int force_channels
                );


                The underlying stb_image.h has routines that don't load the full image:



                // get image dimensions & components without fully decoding
                STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
                STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
                STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len);
                STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user);

                #ifndef STBI_NO_STDIO
                STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp);
                STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp);
                STBIDEF int stbi_is_16_bit (char const *filename);
                STBIDEF int stbi_is_16_bit_from_file(FILE *f);
                #endif






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                answered Nov 20 '18 at 2:42









                genpfaultgenpfault

                41.9k95398




                41.9k95398






























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