added function swf_AddImage().

diff --git a/lib/modules/swfbits.c b/lib/modules/swfbits.c
index 8852237..57350da 100644 (file)
--- a/lib/modules/swfbits.c
+++ b/lib/modules/swfbits.c
@@ -849,6 +849,44 @@ int swf_SetJPEGBits3(TAG * tag, U16 width, U16 height, RGBA * bitmap, int qualit
     rfx_free(data);
     return 0;
 }
+
+TAG* swf_AddImage(TAG*tag, int bitid, RGBA*mem, int width, int height, int quality)
+{
+    TAG *tag1 = 0, *tag2 = 0;
+    int has_alpha = swf_ImageHasAlpha(mem,width,height);
+
+    /* try lossless image */
+    tag1 = swf_InsertTag(0, /*ST_DEFINEBITSLOSSLESS1/2*/0);
+    swf_SetU16(tag1, bitid);
+    swf_SetLosslessImage(tag1, mem, width, height);
+
+    /* try jpeg image */
+    if(has_alpha) {
+       tag2 = swf_InsertTag(0, ST_DEFINEBITSJPEG3);
+       swf_SetU16(tag2, bitid);
+       swf_SetJPEGBits3(tag2, width, height, mem, quality);
+    } else {
+       tag2 = swf_InsertTag(0, ST_DEFINEBITSJPEG2);
+       swf_SetU16(tag2, bitid);
+       swf_SetJPEGBits2(tag2, width, height, mem, quality);
+    }
+
+    if(tag1 && tag1->len < tag2->len) {
+       /* use the zlib version- it's smaller */
+       tag1->prev = tag;
+       if(tag) tag->next = tag1;
+       tag = tag1;
+       swf_DeleteTag(tag2);
+    } else {
+       /* use the jpeg version- it's smaller */
+       tag2->prev = tag;
+       if(tag) tag->next = tag2;
+       tag = tag2;
+       swf_DeleteTag(tag1);
+    }
+    return tag;
+}
+
 #endif
 
 RGBA *swf_ExtractImage(TAG * tag, int *dwidth, int *dheight)

diff --git a/lib/rfxswf.h b/lib/rfxswf.h
index 1266d48..b05d3e6 100644 (file)
--- a/lib/rfxswf.h
+++ b/lib/rfxswf.h
@@ -739,6 +739,7 @@ RGBA* swf_DefineLosslessBitsTagToImage(TAG*tag, int*width, int*height);
 
 RGBA* swf_ExtractImage(TAG*tag, int*dwidth, int*dheight);
 RGBA* swf_ImageScale(RGBA*data, int width, int height, int newwidth, int newheight);
+TAG* swf_AddImage(TAG*tag, int bitid, RGBA*mem, int width, int height, int quality);
 
 // swfsound.c
 void swf_SetSoundStreamHead(TAG*tag, int avgnumsamples);