metafile.c

winNT技术操作系统,国外开放的原代码和LIUX一样

/*
 * Unit tests for metafile functions
 *
 * Copyright (c) 2002 Dmitry Timoshkov
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <assert.h>
#include <stdio.h>
#include <math.h>

#include "wine/test.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"

static LOGFONTA orig_lf;
static BOOL emr_processed = FALSE;

/* Arbitrarily chosen values for the second co-ordinate of a metafile line */
#define LINE_X 55.0f
#define LINE_Y 15.0f

static INT (WINAPI * pGetRelAbs)(HDC, DWORD);
static INT (WINAPI * pSetRelAbs)(HDC, INT);

#define GDI_GET_PROC(func)                                     \
    p ## func = (void *)GetProcAddress(hGDI, #func);           \
    if(!p ## func)                                             \
        trace("GetProcAddress(hGDI, \"%s\") failed\n", #func); \

static void init_function_pointers(void)
{
    HMODULE hGDI;

    pGetRelAbs = NULL;
    pSetRelAbs = NULL;

    hGDI = GetModuleHandleA("gdi32.dll");
    assert(hGDI);
    GDI_GET_PROC(GetRelAbs);
    GDI_GET_PROC(SetRelAbs);
}

static int CALLBACK eto_emf_enum_proc(HDC hdc, HANDLETABLE *handle_table,
    const ENHMETARECORD *emr, int n_objs, LPARAM param)
{
    static int n_record;
    DWORD i;
    const INT *dx;
    INT *orig_dx = (INT *)param;
    LOGFONTA device_lf;
    INT ret;

    trace("hdc %p, emr->iType %ld, emr->nSize %ld, param %p\n",
           hdc, emr->iType, emr->nSize, (void *)param);

    if(!hdc) return 1;

    PlayEnhMetaFileRecord(hdc, handle_table, emr, n_objs);

    switch (emr->iType)
    {
    case EMR_HEADER:
        ok(GetTextAlign(hdc) == 0, "text align %08x\n", GetTextAlign(hdc));
        ok(GetBkColor(hdc) == RGB(0xff, 0xff, 0xff), "bk color %08lx\n", GetBkColor(hdc));
        ok(GetTextColor(hdc) == RGB(0x0, 0x0, 0x0), "text color %08lx\n", GetTextColor(hdc));
        ok(GetROP2(hdc) == R2_COPYPEN, "rop %d\n", GetROP2(hdc));
        ok(GetArcDirection(hdc) == AD_COUNTERCLOCKWISE, "arc dir %d\n", GetArcDirection(hdc));
        ok(GetPolyFillMode(hdc) == ALTERNATE, "poly fill %d\n", GetPolyFillMode(hdc));
        ok(GetStretchBltMode(hdc) == BLACKONWHITE, "stretchblt mode %d\n", GetStretchBltMode(hdc));

        /* GetBkMode, GetRelAbs do not get reset to the default value */
        ok(GetBkMode(hdc) == OPAQUE, "bk mode %d\n", GetBkMode(hdc));
        if(pSetRelAbs && pGetRelAbs)
            ok(pGetRelAbs(hdc, 0) == RELATIVE, "relabs %d\n", pGetRelAbs(hdc, 0));

        n_record = 0;
        break;

    case EMR_EXTTEXTOUTA:
    {
        const EMREXTTEXTOUTA *emr_ExtTextOutA = (const EMREXTTEXTOUTA *)emr;
        dx = (const INT *)((const char *)emr + emr_ExtTextOutA->emrtext.offDx);

        ret = GetObjectA(GetCurrentObject(hdc, OBJ_FONT), sizeof(device_lf), &device_lf);
        ok( ret == sizeof(device_lf), "GetObjectA error %ld\n", GetLastError());

        /* compare up to lfOutPrecision, other values are not interesting,
         * and in fact sometimes arbitrary adapted by Win9x.
         */
        ok(!memcmp(&orig_lf, &device_lf, FIELD_OFFSET(LOGFONTA, lfOutPrecision)), "fonts don't match\n");
        ok(!lstrcmpA(orig_lf.lfFaceName, device_lf.lfFaceName), "font names don't match\n");

        for(i = 0; i < emr_ExtTextOutA->emrtext.nChars; i++)
        {
            ok(orig_dx[i] == dx[i], "pass %d: dx[%ld] (%d) didn't match %d\n",
                                     n_record, i, dx[i], orig_dx[i]);
        }
        n_record++;
        emr_processed = TRUE;
        break;
    }

    case EMR_EXTTEXTOUTW:
    {
        const EMREXTTEXTOUTW *emr_ExtTextOutW = (const EMREXTTEXTOUTW *)emr;
        dx = (const INT *)((const char *)emr + emr_ExtTextOutW->emrtext.offDx);

        ret = GetObjectA(GetCurrentObject(hdc, OBJ_FONT), sizeof(device_lf), &device_lf);
        ok( ret == sizeof(device_lf), "GetObjectA error %ld\n", GetLastError());

        /* compare up to lfOutPrecision, other values are not interesting,
         * and in fact sometimes arbitrary adapted by Win9x.
         */
        ok(!memcmp(&orig_lf, &device_lf, FIELD_OFFSET(LOGFONTA, lfOutPrecision)), "fonts don't match\n");
        ok(!lstrcmpA(orig_lf.lfFaceName, device_lf.lfFaceName), "font names don't match\n");

        for(i = 0; i < emr_ExtTextOutW->emrtext.nChars; i++)
        {
            ok(orig_dx[i] == dx[i], "pass %d: dx[%ld] (%d) didn't match %d\n",
                                     n_record, i, dx[i], orig_dx[i]);
        }
        n_record++;
        emr_processed = TRUE;
        break;
    }

    default:
        break;
    }

    return 1;
}

static void test_ExtTextOut(void)
{
    HWND hwnd;
    HDC hdcDisplay, hdcMetafile;
    HENHMETAFILE hMetafile;
    HFONT hFont;
    static const char text[] = "Simple text to test ExtTextOut on metafiles";
    INT i, len, dx[256];
    static const RECT rc = { 0, 0, 100, 100 };
    BOOL ret;

    assert(sizeof(dx)/sizeof(dx[0]) >= lstrlenA(text));

    /* Win9x doesn't play EMFs on invisible windows */
    hwnd = CreateWindowExA(0, "static", NULL, WS_POPUP | WS_VISIBLE,
                           0, 0, 200, 200, 0, 0, 0, NULL);
    ok(hwnd != 0, "CreateWindowExA error %ld\n", GetLastError());

    hdcDisplay = GetDC(hwnd);
    ok(hdcDisplay != 0, "GetDC error %ld\n", GetLastError());

    trace("hdcDisplay %p\n", hdcDisplay);

    SetMapMode(hdcDisplay, MM_TEXT);

    memset(&orig_lf, 0, sizeof(orig_lf));

    orig_lf.lfCharSet = ANSI_CHARSET;
    orig_lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
    orig_lf.lfWeight = FW_DONTCARE;
    orig_lf.lfHeight = 7;
    orig_lf.lfQuality = DEFAULT_QUALITY;
    lstrcpyA(orig_lf.lfFaceName, "Arial");
    hFont = CreateFontIndirectA(&orig_lf);
    ok(hFont != 0, "CreateFontIndirectA error %ld\n", GetLastError());

    hFont = SelectObject(hdcDisplay, hFont);

    len = lstrlenA(text);
    for (i = 0; i < len; i++)
    {
        ret = GetCharWidthA(hdcDisplay, text[i], text[i], &dx[i]);
        ok( ret, "GetCharWidthA error %ld\n", GetLastError());
    }
    hFont = SelectObject(hdcDisplay, hFont);

    hdcMetafile = CreateEnhMetaFileA(hdcDisplay, NULL, NULL, NULL);
    ok(hdcMetafile != 0, "CreateEnhMetaFileA error %ld\n", GetLastError());

    trace("hdcMetafile %p\n", hdcMetafile);

    ok(GetDeviceCaps(hdcMetafile, TECHNOLOGY) == DT_RASDISPLAY,
       "GetDeviceCaps(TECHNOLOGY) has to return DT_RASDISPLAY for a display based EMF\n");

    hFont = SelectObject(hdcMetafile, hFont);

    /* 1. pass NULL lpDx */
    ret = ExtTextOutA(hdcMetafile, 0, 0, 0, &rc, text, lstrlenA(text), NULL);
    ok( ret, "ExtTextOutA error %ld\n", GetLastError());

    /* 2. pass custom lpDx */
    ret = ExtTextOutA(hdcMetafile, 0, 20, 0, &rc, text, lstrlenA(text), dx);
    ok( ret, "ExtTextOutA error %ld\n", GetLastError());

    hFont = SelectObject(hdcMetafile, hFont);
    ret = DeleteObject(hFont);
    ok( ret, "DeleteObject error %ld\n", GetLastError());

    hMetafile = CloseEnhMetaFile(hdcMetafile);
    ok(hMetafile != 0, "CloseEnhMetaFile error %ld\n", GetLastError());

    ok(!GetObjectType(hdcMetafile), "CloseEnhMetaFile has to destroy metafile hdc\n");

    ret = PlayEnhMetaFile(hdcDisplay, hMetafile, &rc);
    ok( ret, "PlayEnhMetaFile error %ld\n", GetLastError());

    SetTextAlign(hdcDisplay, TA_UPDATECP | TA_CENTER | TA_BASELINE | TA_RTLREADING );
    SetBkColor(hdcDisplay, RGB(0xff, 0, 0));
    SetTextColor(hdcDisplay, RGB(0, 0xff, 0));
    SetROP2(hdcDisplay, R2_NOT);
    SetArcDirection(hdcDisplay, AD_CLOCKWISE);
    SetPolyFillMode(hdcDisplay, WINDING);
    SetStretchBltMode(hdcDisplay, HALFTONE);

    if(pSetRelAbs) pSetRelAbs(hdcDisplay, RELATIVE);
    SetBkMode(hdcDisplay, OPAQUE);

    ret = EnumEnhMetaFile(hdcDisplay, hMetafile, eto_emf_enum_proc, dx, &rc);
    ok( ret, "EnumEnhMetaFile error %ld\n", GetLastError());

    ok( GetTextAlign(hdcDisplay) == (TA_UPDATECP | TA_CENTER | TA_BASELINE | TA_RTLREADING),
        "text align %08x\n", GetTextAlign(hdcDisplay));
    ok( GetBkColor(hdcDisplay) == RGB(0xff, 0, 0), "bk color %08lx\n", GetBkColor(hdcDisplay));
    ok( GetTextColor(hdcDisplay) == RGB(0, 0xff, 0), "text color %08lx\n", GetTextColor(hdcDisplay));
    ok( GetROP2(hdcDisplay) == R2_NOT, "rop2 %d\n", GetROP2(hdcDisplay));
    ok( GetArcDirection(hdcDisplay) == AD_CLOCKWISE, "arc dir  %d\n", GetArcDirection(hdcDisplay));
    ok( GetPolyFillMode(hdcDisplay) == WINDING, "poly fill %d\n", GetPolyFillMode(hdcDisplay));
    ok( GetStretchBltMode(hdcDisplay) == HALFTONE, "stretchblt mode %d\n", GetStretchBltMode(hdcDisplay));

    ok(emr_processed, "EnumEnhMetaFile couldn't find EMR_EXTTEXTOUTA or EMR_EXTTEXTOUTW record\n");

    ok(!EnumEnhMetaFile(hdcDisplay, hMetafile, eto_emf_enum_proc, dx, NULL),
       "A valid hdc has to require a valid rc\n");

    ok(EnumEnhMetaFile(NULL, hMetafile, eto_emf_enum_proc, dx, NULL),
       "A null hdc does not require a valid rc\n");

    ret = DeleteEnhMetaFile(hMetafile);
    ok( ret, "DeleteEnhMetaFile error %ld\n", GetLastError());
    ret = ReleaseDC(hwnd, hdcDisplay);
    ok( ret, "ReleaseDC error %ld\n", GetLastError());
    DestroyWindow(hwnd);
}

static int CALLBACK savedc_emf_enum_proc(HDC hdc, HANDLETABLE *handle_table,
                                         const ENHMETARECORD *emr, int n_objs, LPARAM param)
{
    static int save_state;
    static int restore_no;

    switch (emr->iType)
    {
    case EMR_HEADER:
        save_state = 0;
        restore_no = 0;
        break;

    case EMR_SAVEDC:
        save_state++;
        break;

    case EMR_RESTOREDC:
        {
            EMRRESTOREDC *restoredc = (EMRRESTOREDC *)emr;
            switch(++restore_no)
            {
            case 1:
                ok(restoredc->iRelative == -1, "first restore %ld\n", restoredc->iRelative);
                break;

            case 2:
                ok(restoredc->iRelative == -3, "second restore %ld\n", restoredc->iRelative);
                break;
            case 3:
                ok(restoredc->iRelative == -2, "third restore %ld\n", restoredc->iRelative);
                break;
            }
            ok(restore_no <= 3, "restore_no %d\n", restore_no);
            save_state += restoredc->iRelative;
            break;
        }
    case EMR_EOF:
        ok(save_state == 0, "EOF save_state %d\n", save_state);
        break;
    }


    return 1;        
}

void test_SaveDC(void)
{
    HDC hdcMetafile, hdcDisplay;
    HENHMETAFILE hMetafile;
    HWND hwnd;
    int ret;
    static const RECT rc = { 0, 0, 100, 100 };

    /* Win9x doesn't play EMFs on invisible windows */
    hwnd = CreateWindowExA(0, "static", NULL, WS_POPUP | WS_VISIBLE,
                           0, 0, 200, 200, 0, 0, 0, NULL);
    ok(hwnd != 0, "CreateWindowExA error %ld\n", GetLastError());

    hdcDisplay = GetDC(hwnd);
    ok(hdcDisplay != 0, "GetDC error %ld\n", GetLastError());

    hdcMetafile = CreateEnhMetaFileA(hdcDisplay, NULL, NULL, NULL);
    ok(hdcMetafile != 0, "CreateEnhMetaFileA error %ld\n", GetLastError());

    /* Need to write something to the emf, otherwise Windows won't play it back */
    LineTo(hdcMetafile, 100, 100);

    ret = SaveDC(hdcMetafile);
    ok(ret == 1, "ret = %d\n", ret);

    ret = SaveDC(hdcMetafile);
    ok(ret == 2, "ret = %d\n", ret);

    ret = SaveDC(hdcMetafile);
    ok(ret == 3, "ret = %d\n", ret);

    ret = RestoreDC(hdcMetafile, -1);
    ok(ret, "ret = %d\n", ret);

    ret = SaveDC(hdcMetafile);
    ok(ret == 3, "ret = %d\n", ret);

    ret = RestoreDC(hdcMetafile, 1);
    ok(ret, "ret = %d\n", ret);

    ret = SaveDC(hdcMetafile);
    ok(ret == 1, "ret = %d\n", ret);

    ret = SaveDC(hdcMetafile);
    ok(ret == 2, "ret = %d\n", ret);

    hMetafile = CloseEnhMetaFile(hdcMetafile);
    ok(hMetafile != 0, "CloseEnhMetaFile error %ld\n", GetLastError());

    ret = EnumEnhMetaFile(hdcDisplay, hMetafile, savedc_emf_enum_proc, 0, &rc);
    ok( ret == 1, "EnumEnhMetaFile rets %d\n", ret);

    ret = DeleteEnhMetaFile(hMetafile);
    ok( ret, "DeleteEnhMetaFile error %ld\n", GetLastError());
    ret = ReleaseDC(hwnd, hdcDisplay);
    ok( ret, "ReleaseDC error %ld\n", GetLastError());
    DestroyWindow(hwnd);
}

/* Win-format metafile (mfdrv) tests */
/* These tests compare the generated metafiles byte-by-byte */
/* with the nominal results. */

/* Maximum size of sample metafiles in bytes. */
#define MF_BUFSIZE 512

/* 8x8 bitmap data for a pattern brush */
static const unsigned char SAMPLE_PATTERN_BRUSH[] = {
    0x01, 0x00, 0x02, 0x00,
    0x03, 0x00, 0x04, 0x00,
    0x05, 0x00, 0x06, 0x00,
    0x07, 0x00, 0x08, 0x00
};

/* Sample metafiles to be compared to the outputs of the
 * test functions.
 */

static const unsigned char MF_BLANK_BITS[] = {
    0x01, 0x00, 0x09, 0x00, 0x00, 0x03, 0x0c, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
};

static const unsigned char MF_GRAPHICS_BITS[] = {
    0x01, 0x00, 0x09, 0x00, 0x00, 0x03, 0x22, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00,