pajoye Mon, 04 Oct 2010 22:34:02 +
Revision: http://svn.php.net/viewvc?view=revisionrevision=304041
Log:
- missing file for webp
Changed paths:
A php/php-src/trunk/ext/gd/libgd/gd_webp.c
Added: php/php-src/trunk/ext/gd/libgd/gd_webp.c
===
--- php/php-src/trunk/ext/gd/libgd/gd_webp.c(rev 0)
+++ php/php-src/trunk/ext/gd/libgd/gd_webp.c2010-10-04 22:34:02 UTC (rev
304041)
@@ -0,0 +1,202 @@
+#include stdio.h
+#include math.h
+#include string.h
+#include stdlib.h
+#include gd.h
+
+
+#ifdef HAVE_LIBVPX
+#include webpimg.h
+#include gdhelpers.h
+
+extern void gd_YUV420toRGBA(uint8* Y,
+ uint8* U,
+ uint8* V,
+ gdImagePtr im);
+
+extern void gd_RGBAToYUV420(gdImagePtr im2,
+ uint8* Y,
+ uint8* U,
+ uint8* V);
+
+const char * gdWebpGetVersionString()
+{
+ return not defined;
+}
+
+gdImagePtr gdImageCreateFromWebp (FILE * inFile)
+{
+ gdImagePtr im;
+ gdIOCtx *in = gdNewFileCtx(inFile);
+ im = gdImageCreateFromWebpCtx(in);
+ in-gd_free(in);
+
+ return im;
+}
+
+gdImagePtr gdImageCreateFromWebpPtr (int size, void *data)
+{
+ intwidth, height, ret;
+ unsigned char *Y = NULL;
+ unsigned char *U = NULL;
+ unsigned char *V = NULL;
+ gdImagePtr im;
+
+ ret = WebPDecode(data, size, Y, U, V, width, height);
+ if (ret != webp_success) {
+ if (Y) free(Y);
+ if (U) free(U);
+ if (V) free(V);
+ php_gd_error(WebP decode: fail to decode input data);
+ return NULL;
+ }
+ im = gdImageCreateTrueColor(width, height);
+ if (!im) {
+ return NULL;
+ }
+ gd_YUV420toRGBA(Y, U, V, im);
+ return im;
+}
+
+gdImagePtr gdImageCreateFromWebpCtx (gdIOCtx * infile)
+{
+ intwidth, height, ret;
+ unsigned char *filedata;
+ unsigned char dummy[1024];
+ unsigned char *Y = NULL;
+ unsigned char *U = NULL;
+ unsigned char *V = NULL;
+ size_t size = 0, n;
+ gdImagePtr im;
+
+ do {
+ n = gdGetBuf(dummy, 1024, infile);
+ printf(%i\n, n);
+ size += n;
+ } while (n != EOF);
+
+ filedata = gdMalloc(size);
+ if (!filedata) {
+ php_gd_error(WebP decode: alloc failed);
+ return NULL;
+ }
+ gdGetBuf(filedata, size, infile);
+ ret = WebPDecode(filedata, size, Y, U, V, width, height);
+ gdFree(filedata);
+ if (ret != webp_success) {
+ if (Y) free(Y);
+ if (U) free(U);
+ if (V) free(V);
+ php_gd_error(WebP decode: fail to decode input data);
+ return NULL;
+ }
+ im = gdImageCreateTrueColor(width, height);
+ gd_YUV420toRGBA(Y, U, V, im);
+ return im;
+}
+
+void gdImageWebpEx (gdImagePtr im, FILE * outFile, int quantization)
+{
+ gdIOCtx *out = gdNewFileCtx(outFile);
+ gdImageWebpCtx(im, out, quantization);
+ out-gd_free(out);
+}
+
+void gdImageWebp (gdImagePtr im, FILE * outFile)
+{
+ gdIOCtx *out = gdNewFileCtx(outFile);
+ gdImageWebpCtx(im, out, -1);
+ out-gd_free(out);
+}
+
+void * gdImageWebpPtr (gdImagePtr im, int *size)
+{
+ void *rv;
+ gdIOCtx *out = gdNewDynamicCtx(2048, NULL);
+ gdImageWebpCtx(im, out, -1);
+ rv = gdDPExtractData(out, size);
+ out-gd_free(out);
+
+ return rv;
+}
+
+void * gdImageWebpPtrEx (gdImagePtr im, int *size, int quantization)
+{
+ void *rv;
+ gdIOCtx *out = gdNewDynamicCtx(2048, NULL);
+ gdImageWebpCtx(im, out, quantization);
+ rv = gdDPExtractData(out, size);
+ out-gd_free(out);
+ return rv;
+}
+
+/*
+ * Maps normalized QP (quality) to VP8 QP
+ */
+int mapQualityToVP8QP(int quality) {
+#define MIN_QUALITY 0
+#define MAX_QUALITY 100
+#define MIN_VP8QP 1
+#define MAX_VP8QP 63
+ const float scale = MAX_VP8QP - MIN_VP8QP;
+ const float vp8qp =
+ scale * (MAX_QUALITY - quality) / (MAX_QUALITY - MIN_QUALITY) +
MIN_VP8QP;
+ if (quality MIN_QUALITY || quality MAX_QUALITY) {
+ php_gd_error(Wrong quality value %d., quality);
+ return -1;
+ }
+
+ return (int)(vp8qp + 0.5);
+}
+
+/* This routine is based in part on code from Dale Lutz (Safe Software Inc.)
+ * and in part on demo code from Chapter 15 of PNG: The Definitive Guide
+ * (http://www.cdrom.com/pub/png/pngbook.html).
+ */
+void gdImageWebpCtx (gdImagePtr im, gdIOCtx * outfile, int quantization)
+{
+ int width = im-sx;
+ int height = im-sy;
+ int colors = im-colorsTotal;
+ int *open = im-open;
+
+ int yuv_width, yuv_height, yuv_nbytes, ret;
+ int
