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?










share|improve this question





























    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
          1






          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























            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53382286%2fsoil-image-size%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            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






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 20 '18 at 2:42









                genpfaultgenpfault

                41.9k95398




                41.9k95398






























                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53382286%2fsoil-image-size%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    mysqli_query(): Empty query in /home/lucindabrummitt/public_html/blog/wp-includes/wp-db.php on line 1924

                    How to change which sound is reproduced for terminal bell?

                    Can I use Tabulator js library in my java Spring + Thymeleaf project?