DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (5216dd412535)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235
/* vim: set sw=4 sts=4 et cin: */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is OS/2 code in Thebes.
 *
 * The Initial Developer of the Original Code is
 * Peter Weilbacher <mozilla@Weilbacher.org>.
 * Portions created by the Initial Developer are Copyright (C) 2006-2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "gfxOS2Surface.h"

#include <stdio.h>

/**********************************************************************
 * class gfxOS2Surface
 **********************************************************************/

gfxOS2Surface::gfxOS2Surface(const gfxIntSize& aSize,
                             gfxASurface::gfxImageFormat aImageFormat)
    : mWnd(0), mSize(aSize)
{
#ifdef DEBUG_thebes_2
    printf("gfxOS2Surface[%#x]::gfxOS2Surface(Size=%dx%d, %d)\n", (unsigned int)this,
           aSize.width, aSize.height, aImageFormat);
#endif
    // in this case we don't have a window, so we create a memory presentation
    // space to construct the cairo surface on

    // create a PS, partly taken from nsOffscreenSurface::Init(), i.e. nsDrawingSurfaceOS2.cpp
    DEVOPENSTRUC dop = { 0, 0, 0, 0, 0 };
    SIZEL sizel = { 0, 0 }; // use same page size as device
    mDC = DevOpenDC(0, OD_MEMORY, (PSZ)"*", 5, (PDEVOPENDATA)&dop, NULLHANDLE);
    NS_ASSERTION(mDC != DEV_ERROR, "Could not create memory DC");

    mPS = GpiCreatePS(0, mDC, &sizel, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
    NS_ASSERTION(mPS != GPI_ERROR, "Could not create PS on memory DC!");

    // now create a bitmap of the right size
    BITMAPINFOHEADER2 hdr = { 0 };
    hdr.cbFix = sizeof(BITMAPINFOHEADER2);
    hdr.cx = mSize.width;
    hdr.cy = mSize.height;
    hdr.cPlanes = 1;

    // find bit depth
    LONG lBitCount = 0;
    DevQueryCaps(mDC, CAPS_COLOR_BITCOUNT, 1, &lBitCount);
    hdr.cBitCount = (USHORT)lBitCount;

    mBitmap = GpiCreateBitmap(mPS, &hdr, 0, 0, 0);
    NS_ASSERTION(mBitmap != GPI_ERROR, "Could not create bitmap in memory!");
    // set final stats & select bitmap into PS
    GpiSetBitmap(mPS, mBitmap);

    // now we can finally create the cairo surface on the in-memory PS
    cairo_surface_t *surf = cairo_os2_surface_create(mPS, mSize.width, mSize.height);
#ifdef DEBUG_thebes_2
    printf("  type(%#x)=%d (ID=%#x, h/w=%d/%d)\n", (unsigned int)surf,
           cairo_surface_get_type(surf), (unsigned int)mPS, mSize.width, mSize.height);
#endif
    // Normally, OS/2 cairo surfaces have to be forced to redraw completely
    // by calling cairo_surface_mark_dirty(surf), but Mozilla paints them in
    // full, so that is not necessary here.

    // manual refresh is done from nsWindow::OnPaint
    cairo_os2_surface_set_manual_window_refresh(surf, 1);

    Init(surf);
}

gfxOS2Surface::gfxOS2Surface(HWND aWnd)
    : mWnd(aWnd), mDC(nsnull), mPS(nsnull), mBitmap(nsnull)
{
#ifdef DEBUG_thebes_2
    printf("gfxOS2Surface[%#x]::gfxOS2Surface(HWND=%#x)\n", (unsigned int)this,
           (unsigned int)aWnd);
#endif

    RECTL rectl;
    WinQueryWindowRect(aWnd, &rectl);
    mSize.width = rectl.xRight - rectl.xLeft;
    mSize.height = rectl.yTop - rectl.yBottom;
    if (mSize.width == 0) mSize.width = 1;   // fake a minimal surface area to let
    if (mSize.height == 0) mSize.height = 1; // cairo_os2_surface_create() return something

    // This variation on cairo_os2_surface_create() avoids creating a
    // persistent HPS that may never be used.  It also enables manual
    // refresh so nsWindow::OnPaint() controls when the screen is updated.
    cairo_surface_t *surf =
        cairo_os2_surface_create_for_window(mWnd, mSize.width, mSize.height);
#ifdef DEBUG_thebes_2
    printf("  type(%#x)=%d (ID=%#x, h/w=%d/%d)\n", (unsigned int)surf,
           cairo_surface_get_type(surf), (unsigned int)mPS, mSize.width, mSize.height);
#endif

    Init(surf);
}

gfxOS2Surface::gfxOS2Surface(HDC aDC, const gfxIntSize& aSize)
    : mWnd(0), mDC(aDC), mBitmap(nsnull), mSize(aSize)
{
#ifdef DEBUG_thebes_2
    printf("gfxOS2Surface[%#x]::gfxOS2Surface(HDC=%#x, Size=%dx%d)\n", (unsigned int)this,
           (unsigned int)aDC, aSize.width, aSize.height);
#endif
    SIZEL sizel = { 0, 0 }; // use same page size as device
    mPS = GpiCreatePS(0, mDC, &sizel, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
    NS_ASSERTION(mPS != GPI_ERROR, "Could not create PS on print DC!");

    // now create a bitmap of the right size
    BITMAPINFOHEADER2 hdr = { 0 };
    hdr.cbFix = sizeof(BITMAPINFOHEADER2);
    hdr.cx = mSize.width;
    hdr.cy = mSize.height;
    hdr.cPlanes = 1;

    // find bit depth
    LONG lBitCount = 0;
    DevQueryCaps(mDC, CAPS_COLOR_BITCOUNT, 1, &lBitCount);
    hdr.cBitCount = (USHORT)lBitCount;

    mBitmap = GpiCreateBitmap(mPS, &hdr, 0, 0, 0);
    NS_ASSERTION(mBitmap != GPI_ERROR, "Could not create bitmap for printer!");
    // set final stats & select bitmap into PS
    GpiSetBitmap(mPS, mBitmap);

    // now we can finally create the cairo surface on the in-memory PS
    cairo_surface_t *surf = cairo_os2_surface_create(mPS, mSize.width, mSize.height);
#ifdef DEBUG_thebes_2
    printf("  type(%#x)=%d (ID=%#x, h/w=%d/%d)\n", (unsigned int)surf,
           cairo_surface_get_type(surf), (unsigned int)mPS, mSize.width, mSize.height);
#endif
    // Normally, OS/2 cairo surfaces have to be forced to redraw completely
    // by calling cairo_surface_mark_dirty(surf), but Mozilla paints them in
    // full, so that is not necessary here.

    Init(surf);
}

gfxOS2Surface::~gfxOS2Surface()
{
#ifdef DEBUG_thebes_2
    printf("gfxOS2Surface[%#x]::~gfxOS2Surface()\n", (unsigned int)this);
#endif

    // Surfaces connected to a window were created using WinGetPS so we should
    // release it again with WinReleasePS. Memory or printer surfaces on the
    // other hand were created on device contexts with the GPI functions, so
    // use those to clean up stuff.
    if (mWnd) {
        if (mPS) {
            WinReleasePS(mPS);
        }
    } else {
        if (mBitmap) {
            GpiSetBitmap(mPS, NULL);
            GpiDeleteBitmap(mBitmap);
        }
        if (mPS) {
            GpiDestroyPS(mPS);
        }
        if (mDC) {
            DevCloseDC(mDC);
        }
    }
}

void gfxOS2Surface::Refresh(RECTL *aRect, HPS aPS)
{
#ifdef DEBUG_thebes_2
    printf("gfxOS2Surface[%#x]::Refresh(x=%ld,%ld/y=%ld,%ld, HPS=%#x), mPS=%#x\n",
           (unsigned int)this,
           aRect->xLeft, aRect->xRight, aRect->yBottom, aRect->yTop,
           (unsigned int)aPS, (unsigned int)mPS);
#endif
    cairo_os2_surface_refresh_window(CairoSurface(), (aPS ? aPS : mPS), aRect);
}

int gfxOS2Surface::Resize(const gfxIntSize& aSize)
{
#ifdef DEBUG_thebes_2
    printf("gfxOS2Surface[%#x]::Resize(%dx%d)\n", (unsigned int)this,
           aSize.width, aSize.height);
#endif
    mSize = aSize; // record the new size
    // hardcode mutex timeout to 50ms for now
    return cairo_os2_surface_set_size(CairoSurface(), mSize.width, mSize.height, 50);
}

HPS gfxOS2Surface::GetPS()
{
    // Creating an HPS on-the-fly should never be needed because GetPS()
    // is only called for printing surfaces & mPS should only be null for
    // window surfaces.  It would be a bug if Cairo had an HPS but Thebes
    // didn't, but we'll check anyway to avoid leakage.  As a last resort,
    // if this is a window surface we'll create one & hang on to it.
    if (!mPS) {
        cairo_os2_surface_get_hps(CairoSurface(), &mPS);
        if (!mPS && mWnd) {
            mPS = WinGetPS(mWnd);
            cairo_os2_surface_set_hps(CairoSurface(), mPS);
        }
    }

    return mPS;
}