dlls/gdiplus/tests/graphics.c

   1 /*
   2  * Unit test suite for graphics objects
   3  *
   4  * Copyright (C) 2007 Google (Evan Stade)
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "windows.h"
  22 #include "gdiplus.h"
  23 #include "wingdi.h"
  24 #include "wine/test.h"
  25
  26 #define expect(expected, got) ok(got == expected, "Expected %.8x, got %.8x\n", expected, got)
  27 #define TABLE_LEN (23)
  28
  29 static void test_constructor_destructor(void)
  30 {
  31     GpStatus stat;
  32     GpGraphics *graphics = NULL;
  33     HDC hdc = GetDC(0);
  34
  35     stat = GdipCreateFromHDC(NULL, &graphics);
  36     expect(OutOfMemory, stat);
  37     stat = GdipDeleteGraphics(graphics);
  38     expect(InvalidParameter, stat);
  39
  40     stat = GdipCreateFromHDC(hdc, &graphics);
  41     expect(Ok, stat);
  42     stat = GdipDeleteGraphics(graphics);
  43     expect(Ok, stat);
  44
  45     stat = GdipCreateFromHWND(NULL, &graphics);
  46     expect(Ok, stat);
  47     stat = GdipDeleteGraphics(graphics);
  48     expect(Ok, stat);
  49
  50     stat = GdipDeleteGraphics(NULL);
  51     expect(InvalidParameter, stat);
  52     ReleaseDC(0, hdc);
  53 }
  54
  55 typedef struct node{
  56     GraphicsState data;
  57     struct node * next;
  58 } node;
  59
  60 /* Linked list prepend function. */
  61 static void log_state(GraphicsState data, node ** log)
  62 {
  63     node * new_entry = HeapAlloc(GetProcessHeap(), 0, sizeof(node));
  64
  65     new_entry->data = data;
  66     new_entry->next = *log;
  67     *log = new_entry;
  68 }
  69
  70 /* Checks if there are duplicates in the list, and frees it. */
  71 static void check_no_duplicates(node * log)
  72 {
  73     INT dups = 0;
  74     node * temp = NULL;
  75
  76     if(!log)
  77         goto end;
  78
  79     do{
  80         HeapFree(GetProcessHeap(), 0, temp);
  81         temp = log;
  82         while((temp = temp->next))
  83             if(log->data == temp->data)
  84                 dups++;
  85
  86     }while((log = log->next));
  87
  88     HeapFree(GetProcessHeap(), 0, temp);
  89
  90 end:
  91     expect(0, dups);
  92 }
  93
  94 static void test_save_restore(void)
  95 {
  96     GpStatus stat;
  97     GraphicsState state_a, state_b, state_c;
  98     InterpolationMode mode;
  99     GpGraphics *graphics1, *graphics2;
 100     node * state_log = NULL;
 101     HDC hdc = GetDC(0);
 102
 103     /* Invalid saving. */
 104     GdipCreateFromHDC(hdc, &graphics1);
 105     stat = GdipSaveGraphics(graphics1, NULL);
 106     expect(InvalidParameter, stat);
 107     stat = GdipSaveGraphics(NULL, &state_a);
 108     expect(InvalidParameter, stat);
 109     GdipDeleteGraphics(graphics1);
 110
 111     log_state(state_a, &state_log);
 112
 113     /* Basic save/restore. */
 114     GdipCreateFromHDC(hdc, &graphics1);
 115     GdipSetInterpolationMode(graphics1, InterpolationModeBilinear);
 116     stat = GdipSaveGraphics(graphics1, &state_a);
 117     todo_wine
 118         expect(Ok, stat);
 119     GdipSetInterpolationMode(graphics1, InterpolationModeBicubic);
 120     stat = GdipRestoreGraphics(graphics1, state_a);
 121     todo_wine
 122         expect(Ok, stat);
 123     GdipGetInterpolationMode(graphics1, &mode);
 124     todo_wine
 125         expect(InterpolationModeBilinear, mode);
 126     GdipDeleteGraphics(graphics1);
 127
 128     log_state(state_a, &state_log);
 129
 130     /* Restoring garbage doesn't affect saves. */
 131     GdipCreateFromHDC(hdc, &graphics1);
 132     GdipSetInterpolationMode(graphics1, InterpolationModeBilinear);
 133     GdipSaveGraphics(graphics1, &state_a);
 134     GdipSetInterpolationMode(graphics1, InterpolationModeBicubic);
 135     GdipSaveGraphics(graphics1, &state_b);
 136     GdipSetInterpolationMode(graphics1, InterpolationModeNearestNeighbor);
 137     stat = GdipRestoreGraphics(graphics1, 0xdeadbeef);
 138     todo_wine
 139         expect(Ok, stat);
 140     GdipRestoreGraphics(graphics1, state_b);
 141     GdipGetInterpolationMode(graphics1, &mode);
 142     todo_wine
 143         expect(InterpolationModeBicubic, mode);
 144     GdipRestoreGraphics(graphics1, state_a);
 145     GdipGetInterpolationMode(graphics1, &mode);
 146     todo_wine
 147         expect(InterpolationModeBilinear, mode);
 148     GdipDeleteGraphics(graphics1);
 149
 150     log_state(state_a, &state_log);
 151     log_state(state_b, &state_log);
 152
 153     /* Restoring older state invalidates newer saves (but not older saves). */
 154     GdipCreateFromHDC(hdc, &graphics1);
 155     GdipSetInterpolationMode(graphics1, InterpolationModeBilinear);
 156     GdipSaveGraphics(graphics1, &state_a);
 157     GdipSetInterpolationMode(graphics1, InterpolationModeBicubic);
 158     GdipSaveGraphics(graphics1, &state_b);
 159     GdipSetInterpolationMode(graphics1, InterpolationModeNearestNeighbor);
 160     GdipSaveGraphics(graphics1, &state_c);
 161     GdipSetInterpolationMode(graphics1, InterpolationModeHighQualityBilinear);
 162     GdipRestoreGraphics(graphics1, state_b);
 163     GdipGetInterpolationMode(graphics1, &mode);
 164     todo_wine
 165         expect(InterpolationModeBicubic, mode);
 166     GdipRestoreGraphics(graphics1, state_c);
 167     GdipGetInterpolationMode(graphics1, &mode);
 168     todo_wine
 169         expect(InterpolationModeBicubic, mode);
 170     GdipRestoreGraphics(graphics1, state_a);
 171     GdipGetInterpolationMode(graphics1, &mode);
 172     todo_wine
 173         expect(InterpolationModeBilinear, mode);
 174     GdipDeleteGraphics(graphics1);
 175
 176     log_state(state_a, &state_log);
 177     log_state(state_b, &state_log);
 178     log_state(state_c, &state_log);
 179
 180     /* Restoring older save from one graphics object does not invalidate
 181      * newer save from other graphics object. */
 182     GdipCreateFromHDC(hdc, &graphics1);
 183     GdipCreateFromHDC(hdc, &graphics2);
 184     GdipSetInterpolationMode(graphics1, InterpolationModeBilinear);
 185     GdipSaveGraphics(graphics1, &state_a);
 186     GdipSetInterpolationMode(graphics2, InterpolationModeBicubic);
 187     GdipSaveGraphics(graphics2, &state_b);
 188     GdipSetInterpolationMode(graphics1, InterpolationModeNearestNeighbor);
 189     GdipSetInterpolationMode(graphics2, InterpolationModeNearestNeighbor);
 190     GdipRestoreGraphics(graphics1, state_a);
 191     GdipGetInterpolationMode(graphics1, &mode);
 192     todo_wine
 193         expect(InterpolationModeBilinear, mode);
 194     GdipRestoreGraphics(graphics2, state_b);
 195     GdipGetInterpolationMode(graphics2, &mode);
 196     todo_wine
 197         expect(InterpolationModeBicubic, mode);
 198     GdipDeleteGraphics(graphics1);
 199     GdipDeleteGraphics(graphics2);
 200
 201     /* You can't restore a state to a graphics object that didn't save it. */
 202     GdipCreateFromHDC(hdc, &graphics1);
 203     GdipCreateFromHDC(hdc, &graphics2);
 204     GdipSetInterpolationMode(graphics1, InterpolationModeBilinear);
 205     GdipSaveGraphics(graphics1, &state_a);
 206     GdipSetInterpolationMode(graphics1, InterpolationModeNearestNeighbor);
 207     GdipSetInterpolationMode(graphics2, InterpolationModeNearestNeighbor);
 208     GdipRestoreGraphics(graphics2, state_a);
 209     GdipGetInterpolationMode(graphics2, &mode);
 210     expect(InterpolationModeNearestNeighbor, mode);
 211     GdipDeleteGraphics(graphics1);
 212     GdipDeleteGraphics(graphics2);
 213
 214     log_state(state_a, &state_log);
 215
 216     /* The same state value should never be returned twice. */
 217     todo_wine
 218         check_no_duplicates(state_log);
 219
 220     ReleaseDC(0, hdc);
 221 }
 222
 223 START_TEST(graphics)
 224 {
 225     struct GdiplusStartupInput gdiplusStartupInput;
 226     ULONG_PTR gdiplusToken;
 227
 228     gdiplusStartupInput.GdiplusVersion              = 1;
 229     gdiplusStartupInput.DebugEventCallback          = NULL;
 230     gdiplusStartupInput.SuppressBackgroundThread    = 0;
 231     gdiplusStartupInput.SuppressExternalCodecs      = 0;
 232
 233     GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
 234
 235     test_constructor_destructor();
 236     test_save_restore();
 237
 238     GdiplusShutdown(gdiplusToken);
 239 }