mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-16 09:12:44 +03:00
c105738fa3
This changes the LOG macro to be varadic removing the need for all callsites to have double bracketing and allows for future improvement on how we use the logging macros. The callsites were changed with coccinelle and the changes checked by hand. Compile tested for several frontends but not all. A formatting annotation has also been added which allows the compiler to check the parameters and types passed to the logging.
557 lines
16 KiB
C++
557 lines
16 KiB
C++
/*
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* Copyright 2008 François Revol <mmu_man@users.sourceforge.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* BeOS implementation of generic bitmaps.
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*
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* This implements the interface given by image/bitmap.h using BBitmap.
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*/
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#define __STDBOOL_H__ 1
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#include <assert.h>
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#include <sys/param.h>
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#include <string.h>
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#include <Bitmap.h>
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#include <BitmapStream.h>
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#include <File.h>
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#include <GraphicsDefs.h>
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#include <TranslatorFormats.h>
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#include <TranslatorRoster.h>
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#include <View.h>
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extern "C" {
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#include "utils/log.h"
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#include "content/content.h"
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#include "content/urldb.h"
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#include "desktop/plotters.h"
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#include "desktop/browser.h"
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#include "desktop/font.h"
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#include "image/bitmap.h"
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}
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#include "beos/bitmap.h"
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#include "beos/gui.h"
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#include "beos/scaffolding.h"
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#include "beos/plotters.h"
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struct bitmap {
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BBitmap *primary;
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BBitmap *shadow; // in NetSurf's ABGR order
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BBitmap *pretile_x;
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BBitmap *pretile_y;
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BBitmap *pretile_xy;
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bool opaque;
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};
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#define MIN_PRETILE_WIDTH 256
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#define MIN_PRETILE_HEIGHT 256
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#warning TODO: check rgba order
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#warning TODO: add correct locking (not strictly required)
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/**
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* Convert to BeOS RGBA32_LITTLE (strictly BGRA) from NetSurf's favoured ABGR format.
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*
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* Copies the converted data elsewhere. Operation is rotate left 8 bits.
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*
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* \param src Source 32-bit pixels arranged in ABGR order.
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* \param dst Output data in BGRA order.
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* \param width Width of the bitmap
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* \param height Height of the bitmap
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* \param rowstride Number of bytes to skip after each row (this implementation
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* requires this to be a multiple of 4.)
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*/
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static inline void nsbeos_rgba_to_bgra(void *src,
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void *dst,
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int width,
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int height,
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size_t rowstride)
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{
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struct abgr { uint8 a, b, g, r; };
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struct rgba { uint8 r, g, b ,a; };
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struct bgra { uint8 b, g, r, a; };
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struct rgba *from = (struct rgba *)src;
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struct bgra *to = (struct bgra *)dst;
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rowstride >>= 2;
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for (int y = 0; y < height; y++) {
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for (int x = 0; x < width; x++) {
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to[x].b = from[x].b;
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to[x].g = from[x].g;
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to[x].r = from[x].r;
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to[x].a = from[x].a;
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/*
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if (from[x].a == 0)
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*(rgb_color *)&to[x] = B_TRANSPARENT_32_BIT;
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*/
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}
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from += rowstride;
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to += rowstride;
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}
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}
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/**
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* Create a bitmap.
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*
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* \param width width of image in pixels
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* \param height width of image in pixels
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* \param state a flag word indicating the initial state
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* \return an opaque struct bitmap, or NULL on memory exhaustion
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*/
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void *bitmap_create(int width, int height, unsigned int state)
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{
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struct bitmap *bmp = (struct bitmap *)malloc(sizeof(struct bitmap));
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if (bmp == NULL)
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return NULL;
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int32 flags = 0;
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if (state & BITMAP_CLEAR_MEMORY)
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flags |= B_BITMAP_CLEAR_TO_WHITE;
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BRect frame(0, 0, width - 1, height - 1);
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//XXX: bytes per row ?
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bmp->primary = new BBitmap(frame, flags, B_RGBA32);
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bmp->shadow = new BBitmap(frame, flags, B_RGBA32);
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bmp->pretile_x = bmp->pretile_y = bmp->pretile_xy = NULL;
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bmp->opaque = (state & BITMAP_OPAQUE) != 0;
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return bmp;
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}
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/**
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* Sets whether a bitmap should be plotted opaque
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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* \param opaque whether the bitmap should be plotted opaque
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*/
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void bitmap_set_opaque(void *vbitmap, bool opaque)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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assert(bitmap);
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bitmap->opaque = opaque;
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}
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/**
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* Tests whether a bitmap has an opaque alpha channel
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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* \return whether the bitmap is opaque
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*/
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bool bitmap_test_opaque(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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assert(bitmap);
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/* todo: test if bitmap is opaque */
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return false;
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}
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/**
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* Gets whether a bitmap should be plotted opaque
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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*/
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bool bitmap_get_opaque(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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assert(bitmap);
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return bitmap->opaque;
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}
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/**
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* Return a pointer to the pixel data in a bitmap.
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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* \return pointer to the pixel buffer
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*
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* The pixel data is packed as BITMAP_FORMAT, possibly with padding at the end
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* of rows. The width of a row in bytes is given by bitmap_get_rowstride().
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*/
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unsigned char *bitmap_get_buffer(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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assert(bitmap);
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return (unsigned char *)(bitmap->shadow->Bits());
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}
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/**
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* Find the width of a pixel row in bytes.
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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* \return width of a pixel row in the bitmap
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*/
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size_t bitmap_get_rowstride(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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assert(bitmap);
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return (bitmap->primary->BytesPerRow());
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}
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/**
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* Find the bytes per pixels of a bitmap.
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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* \return bytes per pixels of the bitmap
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*/
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size_t bitmap_get_bpp(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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assert(bitmap);
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return 4;
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}
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/**
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* Free pretiles of a bitmap.
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*
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* \param bitmap The bitmap to free the pretiles of.
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*/
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static void nsbeos_bitmap_free_pretiles(struct bitmap *bitmap)
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{
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#define FREE_TILE(XY) if (bitmap->pretile_##XY) delete (bitmap->pretile_##XY); bitmap->pretile_##XY = NULL
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FREE_TILE(x);
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FREE_TILE(y);
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FREE_TILE(xy);
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#undef FREE_TILE
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}
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/**
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* Free a bitmap.
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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*/
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void bitmap_destroy(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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assert(bitmap);
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nsbeos_bitmap_free_pretiles(bitmap);
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delete bitmap->primary;
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delete bitmap->shadow;
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free(bitmap);
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}
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/**
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* Save a bitmap in the platform's native format.
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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* \param path pathname for file
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* \param flags modify the behaviour of the save
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* \return true on success, false on error and error reported
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*/
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bool bitmap_save(void *vbitmap, const char *path, unsigned flags)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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BTranslatorRoster *roster = BTranslatorRoster::Default();
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BBitmapStream stream(bitmap->primary);
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BFile file(path, B_WRITE_ONLY | B_CREATE_FILE);
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uint32 type = B_PNG_FORMAT;
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if (file.InitCheck() < B_OK)
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return false;
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if (roster->Translate(&stream, NULL, NULL, &file, type) < B_OK)
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return false;
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return true;
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}
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/**
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* The bitmap image has changed, so flush any persistant cache.
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*
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* \param vbitmap a bitmap, as returned by bitmap_create()
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*/
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void bitmap_modified(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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// convert the shadow (ABGR) to into the primary bitmap
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nsbeos_rgba_to_bgra(bitmap->shadow->Bits(), bitmap->primary->Bits(),
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bitmap->primary->Bounds().Width() + 1,
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bitmap->primary->Bounds().Height() + 1,
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bitmap->primary->BytesPerRow());
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nsbeos_bitmap_free_pretiles(bitmap);
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}
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int bitmap_get_width(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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return bitmap->primary->Bounds().Width() + 1;
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}
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int bitmap_get_height(void *vbitmap)
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{
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struct bitmap *bitmap = (struct bitmap *)vbitmap;
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return bitmap->primary->Bounds().Height() + 1;
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}
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static BBitmap *
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nsbeos_bitmap_generate_pretile(BBitmap *primary, int repeat_x, int repeat_y)
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{
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int width = primary->Bounds().Width() + 1;
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int height = primary->Bounds().Height() + 1;
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size_t primary_stride = primary->BytesPerRow();
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BRect frame(0, 0, width * repeat_x - 1, height * repeat_y - 1);
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BBitmap *result = new BBitmap(frame, 0, B_RGBA32);
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char *target_buffer = (char *)result->Bits();
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int x,y,row;
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/* This algorithm won't work if the strides are not multiples */
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assert((size_t)(result->BytesPerRow()) ==
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(primary_stride * repeat_x));
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if (repeat_x == 1 && repeat_y == 1) {
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delete result;
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// just return a copy
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return new BBitmap(primary);
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}
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for (y = 0; y < repeat_y; ++y) {
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char *primary_buffer = (char *)primary->Bits();
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for (row = 0; row < height; ++row) {
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for (x = 0; x < repeat_x; ++x) {
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memcpy(target_buffer,
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primary_buffer, primary_stride);
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target_buffer += primary_stride;
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}
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primary_buffer += primary_stride;
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}
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}
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return result;
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}
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/**
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* The primary image associated with this bitmap object.
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*
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* \param bitmap a bitmap, as returned by bitmap_create()
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*/
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BBitmap *
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nsbeos_bitmap_get_primary(struct bitmap* bitmap)
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{
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return bitmap->primary;
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}
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/**
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* The X-pretiled image associated with this bitmap object.
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*
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* \param bitmap a bitmap, as returned by bitmap_create()
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*/
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BBitmap *
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nsbeos_bitmap_get_pretile_x(struct bitmap* bitmap)
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{
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if (!bitmap->pretile_x) {
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int width = bitmap->primary->Bounds().Width() + 1;
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int xmult = (MIN_PRETILE_WIDTH + width - 1)/width;
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LOG("Pretiling %p for X*%d", bitmap, xmult);
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bitmap->pretile_x = nsbeos_bitmap_generate_pretile(bitmap->primary, xmult, 1);
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}
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return bitmap->pretile_x;
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}
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/**
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* The Y-pretiled image associated with this bitmap object.
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*
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* \param bitmap a bitmap, as returned by bitmap_create()
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*/
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BBitmap *
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nsbeos_bitmap_get_pretile_y(struct bitmap* bitmap)
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{
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if (!bitmap->pretile_y) {
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int height = bitmap->primary->Bounds().Height() + 1;
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int ymult = (MIN_PRETILE_HEIGHT + height - 1)/height;
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LOG("Pretiling %p for Y*%d", bitmap, ymult);
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bitmap->pretile_y = nsbeos_bitmap_generate_pretile(bitmap->primary, 1, ymult);
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}
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return bitmap->pretile_y;
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}
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/**
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* The XY-pretiled image associated with this bitmap object.
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*
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* \param bitmap a bitmap, as returned by bitmap_create()
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*/
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BBitmap *
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nsbeos_bitmap_get_pretile_xy(struct bitmap* bitmap)
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{
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if (!bitmap->pretile_xy) {
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int width = bitmap->primary->Bounds().Width() + 1;
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int height = bitmap->primary->Bounds().Height() + 1;
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int xmult = (MIN_PRETILE_WIDTH + width - 1)/width;
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int ymult = (MIN_PRETILE_HEIGHT + height - 1)/height;
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LOG("Pretiling %p for X*%d Y*%d", bitmap, xmult, ymult);
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bitmap->pretile_xy = nsbeos_bitmap_generate_pretile(bitmap->primary, xmult, ymult);
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}
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return bitmap->pretile_xy;
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}
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/**
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* Create a thumbnail of a page.
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*
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* \param bitmap the bitmap to draw to
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* \param content content structure to thumbnail
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* \return true on success and bitmap updated else false
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*/
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static nserror bitmap_render(struct bitmap *bitmap, hlcache_handle *content)
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{
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BBitmap *thumbnail;
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BBitmap *small;
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BBitmap *big;
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BView *oldView;
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BView *view;
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BView *thumbView;
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float width;
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float height;
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int big_width;
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int big_height;
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int depth;
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struct redraw_context ctx;
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ctx.interactive = false;
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ctx.background_images = true;
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ctx.plot = &nsbeos_plotters;
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assert(content);
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assert(bitmap);
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thumbnail = nsbeos_bitmap_get_primary(bitmap);
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width = thumbnail->Bounds().Width();
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height = thumbnail->Bounds().Height();
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depth = 32;
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big_width = MIN(content_get_width(content), 1024);
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big_height = (int)(((big_width * height) + (width / 2)) / width);
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BRect contentRect(0, 0, big_width - 1, big_height - 1);
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big = new BBitmap(contentRect, B_BITMAP_ACCEPTS_VIEWS, B_RGB32);
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if (big->InitCheck() < B_OK) {
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delete big;
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return NSERROR_NOMEM;
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}
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small = new BBitmap(thumbnail->Bounds(),
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B_BITMAP_ACCEPTS_VIEWS, B_RGB32);
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if (small->InitCheck() < B_OK) {
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delete small;
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delete big;
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return NSERROR_NOMEM;
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}
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//XXX: _lock ?
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// backup the current gc
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oldView = nsbeos_current_gc();
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view = new BView(contentRect, "thumbnailer",
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B_FOLLOW_NONE, B_WILL_DRAW);
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big->AddChild(view);
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thumbView = new BView(small->Bounds(), "thumbnail",
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B_FOLLOW_NONE, B_WILL_DRAW);
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small->AddChild(thumbView);
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view->LockLooper();
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/* impose our view on the content... */
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nsbeos_current_gc_set(view);
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/* render the content */
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content_scaled_redraw(content, big_width, big_height, &ctx);
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view->Sync();
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view->UnlockLooper();
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// restore the current gc
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nsbeos_current_gc_set(oldView);
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// now scale it down
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//XXX: use Zeta's bilinear scaler ?
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//#ifdef B_ZETA_VERSION
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// err = ScaleBitmap(*shot, *scaledBmp);
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//#else
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thumbView->LockLooper();
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thumbView->DrawBitmap(big, big->Bounds(), small->Bounds());
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thumbView->Sync();
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thumbView->UnlockLooper();
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small->LockBits();
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thumbnail->LockBits();
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// copy it to the bitmap
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memcpy(thumbnail->Bits(), small->Bits(), thumbnail->BitsLength());
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thumbnail->UnlockBits();
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small->UnlockBits();
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bitmap_modified(bitmap);
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// cleanup
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small->RemoveChild(thumbView);
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delete thumbView;
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delete small;
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big->RemoveChild(view);
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delete view;
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delete big;
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return NSERROR_OK;
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}
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static struct gui_bitmap_table bitmap_table = {
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.create = bitmap_create,
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.destroy = bitmap_destroy,
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.set_opaque = bitmap_set_opaque,
|
|
.get_opaque = bitmap_get_opaque,
|
|
.test_opaque = bitmap_test_opaque,
|
|
.get_buffer = bitmap_get_buffer,
|
|
.get_rowstride = bitmap_get_rowstride,
|
|
.get_width = bitmap_get_width,
|
|
.get_height = bitmap_get_height,
|
|
.get_bpp = bitmap_get_bpp,
|
|
.save = bitmap_save,
|
|
.modified = bitmap_modified,
|
|
.render = bitmap_render,
|
|
};
|
|
|
|
struct gui_bitmap_table *beos_bitmap_table = &bitmap_table;
|