diff options
Diffstat (limited to 'libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkPixbufDecoder.c')
| -rw-r--r-- | libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkPixbufDecoder.c | 445 |
1 files changed, 0 insertions, 445 deletions
diff --git a/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkPixbufDecoder.c b/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkPixbufDecoder.c deleted file mode 100644 index 6af4815622f..00000000000 --- a/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkPixbufDecoder.c +++ /dev/null @@ -1,445 +0,0 @@ -/* gdkpixbufdecoder.c - Copyright (C) 1999, 2003, 2004 Free Software Foundation, Inc. - - This file is part of GNU Classpath. - - GNU Classpath is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - GNU Classpath is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GNU Classpath; see the file COPYING. If not, write to the - Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301 USA. - - Linking this library statically or dynamically with other modules is - making a combined work based on this library. Thus, the terms and - conditions of the GNU General Public License cover the whole - combination. - - As a special exception, the copyright holders of this library give you - permission to link this library with independent modules to produce an - executable, regardless of the license terms of these independent - modules, and to copy and distribute the resulting executable under - terms of your choice, provided that you also meet, for each linked - independent module, the terms and conditions of the license of that - module. An independent module is a module which is not derived from - or based on this library. If you modify this library, you may extend - this exception to your version of the library, but you are not - obligated to do so. If you do not wish to do so, delete this - exception statement from your version. */ - -#include <gtkpeer.h> -#include <gdk/gdk.h> -#include <gdk-pixbuf/gdk-pixbuf.h> -#include <gdk-pixbuf/gdk-pixbuf-loader.h> - -#include <jni.h> -#include "native_state.h" -#include "gnu_java_awt_peer_gtk_GdkPixbufDecoder.h" - -#include <string.h> -#include <stdlib.h> - -struct state_table *native_pixbufdecoder_state_table; - -/* Union used for type punning. */ -union env_union -{ - void **void_env; - JNIEnv **jni_env; -}; - -static JavaVM *vm; - -static jmethodID areaPreparedID; -static jmethodID areaUpdatedID; -static jmethodID dataOutputWriteID; -static jmethodID registerFormatID; - -static void -area_prepared (GdkPixbufLoader *loader, - jobject *decoder) -{ - JNIEnv *env; - union env_union e; - jint width, height; - - GdkPixbuf *pixbuf = gdk_pixbuf_loader_get_pixbuf (loader); - if (pixbuf == NULL) - return; - - width = gdk_pixbuf_get_width (pixbuf); - height = gdk_pixbuf_get_height (pixbuf); - - gdk_threads_leave (); - - g_assert (decoder != NULL); - - e.jni_env = &env; - (*vm)->GetEnv (vm, e.void_env, JNI_VERSION_1_1); - (*env)->CallVoidMethod (env, - *decoder, - areaPreparedID, - width, height); - - gdk_threads_enter (); -} - -static void -area_updated (GdkPixbufLoader *loader, - gint x, gint y, - gint width, gint height, - jobject *decoder) -{ - JNIEnv *env; - union env_union e; - jint stride_bytes, stride_pixels, n_channels, n_pixels; - jintArray jpixels; - jint *java_pixels; - guchar *gdk_pixels; - - GdkPixbuf *pixbuf_no_alpha = NULL; - GdkPixbuf *pixbuf = NULL; - -#ifndef WORDS_BIGENDIAN - int i; -#endif - - pixbuf_no_alpha = gdk_pixbuf_loader_get_pixbuf (loader); - if (pixbuf_no_alpha == NULL) - return; - - pixbuf = gdk_pixbuf_add_alpha(pixbuf_no_alpha, FALSE, 0, 0, 0); - g_assert (gdk_pixbuf_get_has_alpha (pixbuf)); - - stride_bytes = gdk_pixbuf_get_rowstride (pixbuf); - n_channels = gdk_pixbuf_get_n_channels (pixbuf); - stride_pixels = stride_bytes / n_channels; - n_pixels = height * stride_pixels; - gdk_pixels = gdk_pixbuf_get_pixels (pixbuf); - - e.jni_env = &env; - (*vm)->GetEnv (vm, e.void_env, JNI_VERSION_1_1); - jpixels = (*env)->NewIntArray (env, n_pixels); - java_pixels = (*env)->GetIntArrayElements (env, jpixels, NULL); - - memcpy (java_pixels, - gdk_pixels + (y * stride_bytes), - (height * stride_bytes)); - -#ifndef WORDS_BIGENDIAN - /* convert pixels from 0xBBGGRRAA to 0xAARRGGBB */ - for (i = 0; i < n_pixels; ++i) - { - java_pixels[i] = SWAPU32 ((unsigned)java_pixels[i]); - } -#endif - - g_object_unref (pixbuf); - - gdk_threads_leave (); - - (*env)->ReleaseIntArrayElements (env, jpixels, java_pixels, 0); - (*env)->CallVoidMethod (env, - *decoder, - areaUpdatedID, - (jint) x, (jint) y, - (jint) width, (jint) height, - jpixels, - stride_pixels); - gdk_threads_enter (); -} - -static void -closed (GdkPixbufLoader *loader __attribute__((unused)), jobject *decoder) -{ - JNIEnv *env; - union env_union e; - e.jni_env = &env; - (*vm)->GetEnv (vm, e.void_env, JNI_VERSION_1_1); - - gdk_threads_leave (); - (*env)->DeleteGlobalRef (env, *decoder); - free (decoder); - gdk_threads_enter (); -} - - - -JNIEXPORT void JNICALL -Java_gnu_java_awt_peer_gtk_GdkPixbufDecoder_initState - (JNIEnv *env, jobject obj) -{ - GdkPixbufLoader *loader = NULL; - jobject *decoder = NULL; - - decoder = (jobject *) malloc (sizeof (jobject)); - g_assert (decoder != NULL); - *decoder = (*env)->NewGlobalRef (env, obj); - - gdk_threads_enter (); - loader = gdk_pixbuf_loader_new (); - g_assert (loader != NULL); - g_signal_connect (loader, "area-prepared", G_CALLBACK (area_prepared), decoder); - g_signal_connect (loader, "area-updated", G_CALLBACK (area_updated), decoder); - g_signal_connect (loader, "closed", G_CALLBACK (closed), decoder); - gdk_threads_leave (); - - NSA_SET_PB_PTR (env, obj, loader); -} - -static void -query_formats (JNIEnv *env, jclass clazz) -{ - jobject jformat; - GSList *formats, *f; - GdkPixbufFormat *format; - char **ch, *name; - - jclass formatClass; - jmethodID addExtensionID; - jmethodID addMimeTypeID; - jobject string; - - formatClass = (*env)->FindClass - (env, "gnu/java/awt/peer/gtk/GdkPixbufDecoder$ImageFormatSpec"); - - g_assert(formatClass != NULL); - - addExtensionID = (*env)->GetMethodID (env, formatClass, - "addExtension", - "(Ljava/lang/String;)V"); - - addMimeTypeID = (*env)->GetMethodID (env, formatClass, - "addMimeType", - "(Ljava/lang/String;)V"); - - formats = gdk_pixbuf_get_formats (); - - for (f = formats; f; f = f->next) - { - format = (GdkPixbufFormat *) f->data; - name = gdk_pixbuf_format_get_name(format); - - string = (*env)->NewStringUTF(env, name); - g_assert(string != NULL); - - jformat = (*env)->CallStaticObjectMethod - (env, clazz, registerFormatID, string, - (jboolean) gdk_pixbuf_format_is_writable(format)); - (*env)->DeleteLocalRef(env, string); - - g_assert(jformat != NULL); - - ch = gdk_pixbuf_format_get_extensions(format); - while (*ch) - { - string = (*env)->NewStringUTF(env, *ch); - g_assert(string != NULL); - (*env)->CallVoidMethod (env, jformat, addExtensionID, string); - (*env)->DeleteLocalRef(env, string); - ++ch; - } - - ch = gdk_pixbuf_format_get_mime_types(format); - while (*ch) - { - string = (*env)->NewStringUTF(env, *ch); - g_assert(string != NULL); - (*env)->CallVoidMethod (env, jformat, addMimeTypeID, string); - (*env)->DeleteLocalRef(env, string); - ++ch; - } - } - - g_slist_free(formats); -} - - -JNIEXPORT void JNICALL -Java_gnu_java_awt_peer_gtk_GdkPixbufDecoder_initStaticState - (JNIEnv *env, jclass clazz) -{ - jclass dataOutputClass; - - (*env)->GetJavaVM(env, &vm); - - areaPreparedID = (*env)->GetMethodID (env, clazz, - "areaPrepared", - "(II)V"); - - areaUpdatedID = (*env)->GetMethodID (env, clazz, - "areaUpdated", - "(IIII[II)V"); - - registerFormatID = (*env)->GetStaticMethodID - (env, clazz, - "registerFormat", - "(Ljava/lang/String;Z)" - "Lgnu/java/awt/peer/gtk/GdkPixbufDecoder$ImageFormatSpec;"); - - - dataOutputClass = (*env)->FindClass(env, "java/io/DataOutput"); - dataOutputWriteID = (*env)->GetMethodID (env, dataOutputClass, - "write", "([B)V"); - - query_formats (env, clazz); - - NSA_PB_INIT (env, clazz); -} - - -JNIEXPORT void JNICALL -Java_gnu_java_awt_peer_gtk_GdkPixbufDecoder_finish - (JNIEnv *env, jobject obj) -{ - GdkPixbufLoader *loader = NULL; - - loader = (GdkPixbufLoader *)NSA_DEL_PB_PTR (env, obj); - if (loader == NULL) - return; - - gdk_threads_enter (); - gdk_pixbuf_loader_close (loader, NULL); - g_object_unref (loader); - gdk_threads_leave (); -} - -struct stream_save_request -{ - JNIEnv *env; - jobject *stream; -}; - -static gboolean -save_to_stream(const gchar *buf, - gsize count, - GError **error __attribute__((unused)), - gpointer data) -{ - struct stream_save_request *ssr = (struct stream_save_request *)data; - - jbyteArray jbuf; - jbyte *cbuf; - - gdk_threads_leave (); - jbuf = (*(ssr->env))->NewByteArray ((ssr->env), count); - cbuf = (*(ssr->env))->GetByteArrayElements ((ssr->env), jbuf, NULL); - memcpy (cbuf, buf, count); - (*(ssr->env))->ReleaseByteArrayElements ((ssr->env), jbuf, cbuf, 0); - (*(ssr->env))->CallVoidMethod ((ssr->env), *(ssr->stream), - dataOutputWriteID, jbuf); - gdk_threads_enter (); - return TRUE; -} - - -JNIEXPORT void JNICALL -Java_gnu_java_awt_peer_gtk_GdkPixbufDecoder_streamImage -(JNIEnv *env, jclass clazz __attribute__((unused)), - jintArray jarr, jstring jenctype, jint width, jint height, - jboolean hasAlpha, jobject stream) -{ - GdkPixbuf* pixbuf; - jint *ints; - guchar a, r, g, b, *pix, *p; - GError *err = NULL; - const char *enctype; - int i; - - struct stream_save_request ssr; - ssr.stream = &stream; - ssr.env = env; - - ints = (*env)->GetIntArrayElements (env, jarr, NULL); - pix = g_malloc(width * height * (hasAlpha ? 4 : 3)); - - enctype = (*env)->GetStringUTFChars (env, jenctype, NULL); - g_assert(enctype != NULL); - - g_assert (pix != NULL); - g_assert (ints != NULL); - - p = pix; - for (i = 0; i < width*height; ++i) - { - /* - * Java encodes pixels as integers in a predictable arithmetic order: - * 0xAARRGGBB. Since these are jints, JNI has already byte-swapped - * them for us if necessary, so they're in "our" endianness, whatever - * that is. It uses 4 bytes per pixel whether or not there's an alpha - * channel. - */ - - a = 0xff & (ints[i] >> 24); - r = 0xff & (ints[i] >> 16); - g = 0xff & (ints[i] >> 8); - b = 0xff & ints[i]; - - /* - * GDK-pixbuf has a very different storage model: - * - * - A different alpha order (alpha after colors). - * - A different packing model (no alpha -> 3-bytes-per-pixel). - * - A different "RGB" order (host memory order, not endian-neutral). - */ - - *p++ = r; - *p++ = g; - *p++ = b; - if (hasAlpha) - *p++ = a; - } - - gdk_threads_enter (); - pixbuf = gdk_pixbuf_new_from_data (pix, - GDK_COLORSPACE_RGB, - (gboolean) hasAlpha, - 8, width, height, - width * (hasAlpha ? 4 : 3), /* rowstride */ - NULL, NULL); - g_assert (pixbuf != NULL); - - g_assert(gdk_pixbuf_save_to_callback (pixbuf, - &save_to_stream, - &ssr, - enctype, - &err, NULL)); - - g_object_unref (pixbuf); - - gdk_threads_leave (); - g_free(pix); - - (*env)->ReleaseStringUTFChars (env, jenctype, enctype); - (*env)->ReleaseIntArrayElements (env, jarr, ints, 0); -} - -JNIEXPORT void JNICALL -Java_gnu_java_awt_peer_gtk_GdkPixbufDecoder_pumpBytes - (JNIEnv *env, jobject obj, jbyteArray jarr, jint len) -{ - GdkPixbufLoader *loader = NULL; - jbyte *bytes = NULL; - - if (len < 1) - return; - - bytes = (*env)->GetByteArrayElements (env, jarr, NULL); - g_assert (bytes != NULL); - loader = (GdkPixbufLoader *)NSA_GET_PB_PTR (env, obj); - g_assert (loader != NULL); - - gdk_threads_enter (); - gdk_pixbuf_loader_write (loader, (const guchar *) bytes, len, NULL); - gdk_threads_leave (); - - (*env)->ReleaseByteArrayElements (env, jarr, bytes, 0); -} |