diff options
Diffstat (limited to 'libjava/gnu/gcj/xlib/natXImage.cc')
| -rw-r--r-- | libjava/gnu/gcj/xlib/natXImage.cc | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/libjava/gnu/gcj/xlib/natXImage.cc b/libjava/gnu/gcj/xlib/natXImage.cc new file mode 100644 index 000000000..81022227d --- /dev/null +++ b/libjava/gnu/gcj/xlib/natXImage.cc @@ -0,0 +1,220 @@ +/* Copyright (C) 2000 Free Software Foundation + + This file is part of libgcj. + +This software is copyrighted work licensed under the terms of the +Libgcj License. Please consult the file "LIBGCJ_LICENSE" for +details. */ + +#include <X11/Xlib.h> +#include <X11/Xutil.h> + +#include <gcj/cni.h> +#include <gnu/gcj/RawData.h> + +#include <java/lang/OutOfMemoryError.h> + +#include <gnu/gcj/xlib/Display.h> +#include <gnu/gcj/xlib/Screen.h> +#include <gnu/gcj/xlib/Visual.h> +#include <gnu/gcj/xlib/XImage.h> +#include <java/lang/System.h> +#include <java/io/PrintStream.h> + +void gnu::gcj::xlib::XImage::init(Visual* visual, jint depth, + jint format, jint xoffset, + jint width, jint height, + jint bitmapPad, jint bytesPerLine, + jint bitsPerPixel) +{ + ::Display* dpy = (::Display*) visual->display->display; + ::Visual* vis = (::Visual*) visual->getVisualStructure(); + + char* data = 0; // no preallocated data + ::XImage* ximage = XCreateImage(dpy, vis, depth, format, xoffset, + data, + width, height, + bitmapPad, + bytesPerLine + ); + if (ximage == 0) + { + jstring errorMessage = JvNewStringLatin1("XCreateImage failed"); + throw new ::java::lang::OutOfMemoryError(errorMessage); + } + + bool reinitialize = false; + + if ((bitsPerPixel != 0) && (ximage->bits_per_pixel != bitsPerPixel)) + { + ximage->bits_per_pixel = bitsPerPixel; + reinitialize = true; + } + + // FIXME: make autoconf test? + jshort endianTestShort[] = { 1 }; + jbyte* endianTestByte = reinterpret_cast<jbyte*>(endianTestShort); + + jint byteOrder; + if (endianTestByte[0] == 1) + { + // little endian machine + byteOrder = LEAST_SIGNIFICANT_B_FIRST_ORDER; + } + else + { + // big endian machine + byteOrder = MOST_SIGNIFICANT_B_FIRST_ORDER; + } + /* NB: This doesn't consider those weird machines out there with + middle-endian byte order. */ + + if (byteOrder != ximage->byte_order) + { + ximage->byte_order = byteOrder; + reinitialize = true; + } + + if (reinitialize) + XInitImage(ximage); + + structure = reinterpret_cast<gnu::gcj::RawData*>(ximage); + // Notice that no image data has been allocated at this point +} + +void gnu::gcj::xlib::XImage::init(Visual* visual, + jint width, + jint height) +{ + int depth = visual->getDepth(); + + int format = ZPixmap; // Chunky, not planar. + int offset = 0; + int bitmapPad = 32; // FIXME, don't hardcode this + int bytesPerLine = 0; // Let the server figure it out + + init(visual, depth, format, offset, width, height, bitmapPad, + bytesPerLine, 0); +} + +void gnu::gcj::xlib::XImage::internalSetData(jbyteArray data, jint offset) +{ + ::XImage* ximage = (::XImage*) structure; + ximage->data = reinterpret_cast<char*>(elements(data)+offset); +} + +void gnu::gcj::xlib::XImage::internalSetData(jshortArray data, jint offset) +{ + ::XImage* ximage = (::XImage*) structure; + ximage->data = reinterpret_cast<char*>(elements(data)+offset); +} + +void gnu::gcj::xlib::XImage::internalSetData(jintArray data, jint offset) +{ + ::XImage* ximage = (::XImage*) structure; + ximage->data = reinterpret_cast<char*>(elements(data)+offset); +} + +void gnu::gcj::xlib::XImage::finalize() +{ + ::XImage* ximage = (::XImage*) structure; + if (ownsData) + delete ximage->data; + + ximage->data = 0; // Never allow XLib to free the data allocation. + dataRef = 0; + XDestroyImage(ximage); +} + +jint gnu::gcj::xlib::XImage::getWidth() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->width; +} + +jint gnu::gcj::xlib::XImage::getHeight() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->height; +} + +jint gnu::gcj::xlib::XImage::getDepth() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->depth; +} + +jint gnu::gcj::xlib::XImage::getFormat() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->format; +} + +jint gnu::gcj::xlib::XImage::getXOffset() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->xoffset; +} + +jint gnu::gcj::xlib::XImage::getImageByteOrder() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->byte_order; +} + +jint gnu::gcj::xlib::XImage::getBitmapBitOrder() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->bitmap_bit_order; +} + +jint gnu::gcj::xlib::XImage::getBitmapUnit() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->bitmap_unit; +} + +jint gnu::gcj::xlib::XImage::getBitmapPad() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->bitmap_pad; +} + +jint gnu::gcj::xlib::XImage::getBytesPerLine() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->bytes_per_line; +} + +jint gnu::gcj::xlib::XImage::getBitsPerPixel() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->bits_per_pixel; +} + + +// True/Direct Color specific: + +jint gnu::gcj::xlib::XImage::getRedMask() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->red_mask; +} + +jint gnu::gcj::xlib::XImage::getGreenMask() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->green_mask; +} + +jint gnu::gcj::xlib::XImage::getBlueMask() +{ + ::XImage* ximage = (::XImage*) structure; + return ximage->blue_mask; +} + +void gnu::gcj::xlib::XImage::setPixel(jint x, jint y, jint pixel) +{ + ::XImage* ximage = (::XImage*) structure; + XPutPixel(ximage, x, y, pixel); +} |