From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../gtk-peer/gnu_java_awt_peer_gtk_CairoSurface.c | 333 +++++++++++++++++++++ 1 file changed, 333 insertions(+) create mode 100644 libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_CairoSurface.c (limited to 'libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_CairoSurface.c') diff --git a/libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_CairoSurface.c b/libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_CairoSurface.c new file mode 100644 index 000000000..23340fb5b --- /dev/null +++ b/libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_CairoSurface.c @@ -0,0 +1,333 @@ +/* gnu_java_awt_peer_gtk_CairoSurface.c + Copyright (C) 2006 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 "jcl.h" +#include "gtkpeer.h" + +#include "gnu_java_awt_peer_gtk_CairoSurface.h" +#include "cairographics2d.h" + +/** + * Field names in CairoSurface.java + */ +#define SURFACE "surfacePointer" +#define SHARED "sharedBuffer" + +/* prototypes */ +static void setNativeObject( JNIEnv *env, jobject obj, void *ptr, const char *pointer ); + +/** + * Creates a cairo surface, ARGB32, native ordering, premultiplied alpha. + */ +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_CairoSurface_create +(JNIEnv *env, jobject obj, jint width, jint height, jint stride, + jintArray buf ) +{ + cairo_surface_t* surface; + jboolean isCopy; + + /* Retrieve java-created data array */ + void *data = (*env)->GetIntArrayElements (env, buf, &isCopy); + + /* Set sharedBuffer variable */ + jclass cls = (*env)->GetObjectClass (env, obj); + jfieldID field = (*env)->GetFieldID (env, cls, SHARED, "Z"); + g_assert (field != 0); + + if (isCopy == JNI_TRUE) + { + (*env)->SetBooleanField (env, obj, field, JNI_FALSE); + void* temp = g_malloc(stride * height * 4); + memcpy(temp, data, stride * height * 4); + (*env)->ReleaseIntArrayElements (env, buf, data, 0); + data = temp; + } + else + (*env)->SetBooleanField (env, obj, field, JNI_TRUE); + + /* Create the cairo surface and set the java pointer */ + surface = cairo_image_surface_create_for_data + (data, CAIRO_FORMAT_ARGB32, width, height, stride * 4); + + setNativeObject(env, obj, surface, SURFACE); +} + +/** + * Destroy the surface + */ +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_CairoSurface_destroy +(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), + jlong surfacePointer, jintArray buf) +{ + cairo_surface_t* surface = JLONG_TO_PTR(void, surfacePointer); + void *data = cairo_image_surface_get_data(surface); + if( surface != NULL ) + { + /* Release or free the data buffer as appropriate */ + jclass cls = (*env)->GetObjectClass (env, obj); + jfieldID field = (*env)->GetFieldID (env, cls, SHARED, "Z"); + g_assert (field != 0); + jboolean sharedBuffer = (*env)->GetBooleanField (env, obj, field); + + if (sharedBuffer == JNI_TRUE) + (*env)->ReleaseIntArrayElements (env, buf, data, 0); + else + g_free(data); + + /* Destroy the cairo surface itself */ + cairo_surface_destroy(surface); + } +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_CairoSurface_nativeDrawSurface +(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), + jlong surfacePointer, jlong context, jdoubleArray java_matrix, double alpha, + jint interpolation) +{ + struct cairographics2d *gr = JLONG_TO_PTR(struct cairographics2d, context); + cairo_t *cr = gr->cr; + jdouble *native_matrix = NULL; + cairo_surface_t* surface = JLONG_TO_PTR(void, surfacePointer); + g_assert(surface != NULL); + g_assert(cr != NULL); + + native_matrix = (*env)->GetDoubleArrayElements (env, java_matrix, NULL); + g_assert (native_matrix != NULL); + g_assert ((*env)->GetArrayLength (env, java_matrix) == 6); + + { + cairo_matrix_t mat; + cairo_pattern_t *p; + cairo_matrix_init_identity (&mat); + cairo_matrix_init (&mat, + native_matrix[0], native_matrix[1], + native_matrix[2], native_matrix[3], + native_matrix[4], native_matrix[5]); + + p = cairo_pattern_create_for_surface (surface); + cairo_pattern_set_matrix (p, &mat); + switch ((enum java_awt_rendering_hints_filter) interpolation) + { + case java_awt_rendering_hints_VALUE_INTERPOLATION_NEAREST_NEIGHBOR: + cairo_pattern_set_filter (p, CAIRO_FILTER_NEAREST); + break; + case java_awt_rendering_hints_VALUE_INTERPOLATION_BILINEAR: + cairo_pattern_set_filter (p, CAIRO_FILTER_BILINEAR); + break; + case java_awt_rendering_hints_VALUE_INTERPOLATION_BICUBIC: + cairo_pattern_set_filter (p, CAIRO_FILTER_GAUSSIAN); + break; + case java_awt_rendering_hints_VALUE_ALPHA_INTERPOLATION_SPEED: + cairo_pattern_set_filter (p, CAIRO_FILTER_FAST); + break; + case java_awt_rendering_hints_VALUE_ALPHA_INTERPOLATION_DEFAULT: + cairo_pattern_set_filter (p, CAIRO_FILTER_NEAREST); + break; + case java_awt_rendering_hints_VALUE_ALPHA_INTERPOLATION_QUALITY: + cairo_pattern_set_filter (p, CAIRO_FILTER_BEST); + break; + } + + cairo_set_source(cr, p); + if (alpha == 1.0) + cairo_paint(cr); + else + cairo_paint_with_alpha(cr, alpha); + + cairo_pattern_destroy(p); + } + + (*env)->ReleaseDoubleArrayElements (env, java_matrix, native_matrix, 0); +} + +JNIEXPORT jlong JNICALL +Java_gnu_java_awt_peer_gtk_CairoSurface_getFlippedBuffer +(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), + jlong surfacePointer) +{ + cairo_surface_t* surface; + jint *src; + jint *dst; + int i, t, width, height; + jclass cls; + jfieldID field; + + /* Retrieve pointer to cairo data buffer */ + surface = JLONG_TO_PTR(void, surfacePointer); + src = (jint*)cairo_image_surface_get_data(surface); + + /* Retrieve dimensions of surface, from java fields */ + cls = (*env)->GetObjectClass (env, obj); + field = (*env)->GetFieldID (env, cls, "width", "I"); + g_assert (field != 0); + width = (*env)->GetIntField (env, obj, field); + + field = (*env)->GetFieldID (env, cls, "height", "I"); + g_assert (field != 0); + height = (*env)->GetIntField (env, obj, field); + + /* Create destination array */ + g_assert( src != NULL ); + dst = g_malloc( width * height * sizeof( jint ) ); + + /* Copy data into destination array, reversing sample order of each pixel */ + for(i = 0; i < (height * width); i++ ) + { + t = (src[i] & 0x0000FF) << 16; + dst[i] = (src[i] & 0x00FF0000) >> 16; + dst[i] |= (src[i] & 0xFF00FF00); + dst[i] |= t; + } + + return PTR_TO_JLONG(dst); +} + +/** + * Create and return a cairo context for drawing to the surface. + */ +JNIEXPORT jlong JNICALL +Java_gnu_java_awt_peer_gtk_CairoSurface_nativeNewCairoContext +(JNIEnv *env __attribute((unused)), jobject obj __attribute((unused)), + jlong surfacePointer) +{ + cairo_surface_t* surface = JLONG_TO_PTR(cairo_surface_t, surfacePointer); + cairo_t *ptr; + g_assert(surface != NULL); + ptr = cairo_create(surface); + g_assert(ptr != NULL); + + return PTR_TO_JLONG(ptr); +} + +/** + * copyArea. + */ +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_CairoSurface_copyAreaNative2 +(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), + jlong surfacePointer, + jint x, jint y, jint w, jint h, jint dx, jint dy, jint stride) +{ + int row; + int srcOffset, dstOffset; + jint *temp; + + /* Retrieve pointer to cairo data buffer */ + cairo_surface_t* surface = JLONG_TO_PTR(void, surfacePointer); + jint *pixeldata = (jint*)cairo_image_surface_get_data(surface); + g_assert( pixeldata != NULL ); + + /* Create temporary buffer and calculate offsets */ + temp = g_malloc( h * w * 4 ); + g_assert( temp != NULL ); + + srcOffset = x + (y * stride); + dstOffset = (x + dx) + ((y + dy) * stride); + + /* Copy desired region into temporary buffer */ + for( row = 0; row < h; row++ ) + memcpy( temp + (w * row), pixeldata + srcOffset + (stride * row), w * 4 ); + + /* Copy out of buffer and to destination */ + for( row = 0; row < h; row++ ) + memcpy( pixeldata + dstOffset + (stride * row), temp + (w * row), w * 4 ); + + g_free( temp ); +} + +/* + * Synchronizes the java and native data buffers, copying any changes made in + * the java array into the native array. + * This method should only be called if (sharedBuffer == false). + */ +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_CairoSurface_syncJavaToNative +(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), + jlong surfacePointer, jintArray buffer) +{ + /* Get size of java array */ + int size = (*env)->GetArrayLength(env, buffer); + + /* Get native data buffer */ + cairo_surface_t* surface = JLONG_TO_PTR(void, surfacePointer); + g_assert(surface != NULL); + void* nativeBuffer = cairo_image_surface_get_data(surface); + + /* Sync buffers */ + (*env)->GetIntArrayRegion(env, buffer, 0, size, nativeBuffer); +} + +/* + * Synchronizes the java and native data buffers, copying any changes made in + * the native array into the java array. + * This method should only be called if (sharedBuffer == false). + */ +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_CairoSurface_syncNativeToJava +(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), + jlong surfacePointer, jintArray buffer) +{ + /* Get size of java array */ + int size = (*env)->GetArrayLength(env, buffer); + + /* Get native data buffer */ + cairo_surface_t* surface = JLONG_TO_PTR(void, surfacePointer); + g_assert(surface != NULL); + void* nativeBuffer = cairo_image_surface_get_data(surface); + + /* Sync buffers */ + (*env)->SetIntArrayRegion(env, buffer, 0, size, nativeBuffer); +} + +/* + * Sets the native object field. + */ +static void +setNativeObject( JNIEnv *env, jobject obj, void *ptr, const char *pointer ) +{ + jclass cls; + jlong value; + jfieldID nofid; + cls = (*env)->GetObjectClass( env, obj ); + value = PTR_TO_JLONG(ptr); + nofid = (*env)->GetFieldID( env, cls, pointer, "J" ); + (*env)->SetLongField( env, obj, nofid, value ); + (*env)->DeleteLocalRef( env, cls ); +} -- cgit v1.2.3