110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <webp/encode.h>
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#include "evas_common_private.h"
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#include "evas_private.h"
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static int evas_image_save_file_webp(RGBA_Image *im, const char *file, const char *key, int quality, int compress, const char *encoding);
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static Evas_Image_Save_Func evas_image_save_webp_func =
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{
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evas_image_save_file_webp
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};
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static int writer(const uint8_t *data, size_t data_size, const WebPPicture *const pic)
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{
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FILE *out = (FILE *)pic->custom_ptr;
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return data_size ? (fwrite(data, data_size, 1, out) == 1) : 1;
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}
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static int
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save_image_webp(RGBA_Image *im, const char *file, int quality)
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{
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WebPPicture picture;
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WebPConfig config;
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int result = 0;
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if (!im || !im->image.data || !file)
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return 0;
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if (!WebPPictureInit(&picture) || !WebPConfigInit(&config))
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return 0;
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picture.width = im->cache_entry.w;
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picture.height = im->cache_entry.h;
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picture.use_argb = 1;
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if (im->cache_entry.flags.alpha)
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picture.colorspace |= WEBP_CSP_ALPHA_BIT;
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else
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picture.colorspace &= ~WEBP_CSP_ALPHA_BIT;
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if (!WebPPictureAlloc(&picture)) // allocates picture.argb
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return 0;
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memcpy(picture.argb, im->image.data, picture.width * picture.height * sizeof(DATA32));
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evas_common_convert_argb_unpremul(picture.argb, picture.width * picture.height);
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if (quality == 100)
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config.lossless = 1;
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else
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config.quality = quality;
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// config.method = 6; // slower, but better quality
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if (!WebPValidateConfig(&config))
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goto free_picture;
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FILE *f = fopen(file, "wb");
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if (f == NULL)
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goto free_picture;
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picture.writer = writer;
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picture.custom_ptr = (void *)f;
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result = WebPEncode(&config, &picture);
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fclose(f);
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free_picture:
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WebPPictureFree(&picture);
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return result;
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}
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static int evas_image_save_file_webp(RGBA_Image *im, const char *file, const char *key EINA_UNUSED,
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int quality, int compress EINA_UNUSED, const char *encoding EINA_UNUSED)
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{
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return save_image_webp(im, file, quality);
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}
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static int
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module_open(Evas_Module *em)
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{
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if (!em) return 0;
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em->functions = (void *)(&evas_image_save_webp_func);
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return 1;
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}
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static void
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module_close(Evas_Module *em EINA_UNUSED)
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{
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}
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static Evas_Module_Api evas_modapi =
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{
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EVAS_MODULE_API_VERSION,
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"webp",
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"none",
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{
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module_open,
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module_close
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}
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};
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EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_IMAGE_SAVER, image_saver, webp);
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#ifndef EVAS_STATIC_BUILD_WEBP
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EVAS_EINA_MODULE_DEFINE(image_saver, webp);
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#endif
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