INLINE BOOL gdi_InvalidateRegion(HGDI_DC hdc, int x, int y, int w, int h)
{
GDI_RECT inv;
GDI_RECT rgn;
HGDI_RGN invalid;
HGDI_RGN cinvalid;
if (!hdc->hwnd)
return TRUE;
if (!hdc->hwnd->invalid)
return TRUE;
if (w == 0 || h == 0)
return TRUE;
cinvalid = hdc->hwnd->cinvalid;
if ((hdc->hwnd->ninvalid + 1) > hdc->hwnd->count)
{
int new_cnt;
HGDI_RGN new_rgn;
new_cnt = hdc->hwnd->count * 2;
new_rgn = (HGDI_RGN) realloc(cinvalid, sizeof(GDI_RGN) * new_cnt);
if (!new_rgn)
return FALSE;
hdc->hwnd->count = new_cnt;
cinvalid = new_rgn;
}
gdi_SetRgn(&cinvalid[hdc->hwnd->ninvalid++], x, y, w, h);
hdc->hwnd->cinvalid = cinvalid;
invalid = hdc->hwnd->invalid;
if (invalid->null)
{
invalid->x = x;
invalid->y = y;
invalid->w = w;
invalid->h = h;
invalid->null = 0;
return TRUE;
}
gdi_CRgnToRect(x, y, w, h, &rgn);
gdi_RgnToRect(invalid, &inv);
if (rgn.left < 0)
rgn.left = 0;
if (rgn.top < 0)
rgn.top = 0;
if (rgn.left < inv.left)
inv.left = rgn.left;
if (rgn.top < inv.top)
inv.top = rgn.top;
if (rgn.right > inv.right)
inv.right = rgn.right;
if (rgn.bottom > inv.bottom)
inv.bottom = rgn.bottom;
gdi_RectToRgn(&inv, invalid);
return TRUE;
}
int test_gdi_InvalidateRegion(void)
{
HGDI_DC hdc;
HGDI_RGN rgn1;
HGDI_RGN rgn2;
HGDI_RGN invalid;
HGDI_BITMAP bmp;
if (!(hdc = gdi_GetDC()))
{
printf("failed to get gdi device context\n");
return -1;
}
hdc->bytesPerPixel = 4;
hdc->bitsPerPixel = 32;
bmp = gdi_CreateBitmapEx(1024, 768, 4, NULL, NULL);
gdi_SelectObject(hdc, (HGDIOBJECT) bmp);
gdi_SetNullClipRgn(hdc);
hdc->hwnd = (HGDI_WND) calloc(1, sizeof(GDI_WND));
hdc->hwnd->invalid = gdi_CreateRectRgn(0, 0, 0, 0);
hdc->hwnd->invalid->null = 1;
invalid = hdc->hwnd->invalid;
hdc->hwnd->count = 16;
hdc->hwnd->cinvalid = (HGDI_RGN) calloc(hdc->hwnd->count, sizeof(GDI_RGN));
rgn1 = gdi_CreateRectRgn(0, 0, 0, 0);
rgn2 = gdi_CreateRectRgn(0, 0, 0, 0);
rgn1->null = 1;
rgn2->null = 1;
/* no previous invalid region */
invalid->null = 1;
gdi_SetRgn(rgn1, 300, 300, 100, 100);
gdi_SetRgn(rgn2, 300, 300, 100, 100);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* region same as invalid region */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 300, 100, 100);
gdi_SetRgn(rgn2, 300, 300, 100, 100);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* left outside */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 100, 300, 300, 100);
gdi_SetRgn(rgn2, 100, 300, 300, 100);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* right outside */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 300, 300, 100);
gdi_SetRgn(rgn2, 300, 300, 300, 100);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* top outside */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 100, 100, 300);
gdi_SetRgn(rgn2, 300, 100, 100, 300);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* bottom outside */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 300, 100, 300);
gdi_SetRgn(rgn2, 300, 300, 100, 300);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* left outside, right outside */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 100, 300, 600, 300);
gdi_SetRgn(rgn2, 100, 300, 600, 300);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* top outside, bottom outside */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 100, 100, 500);
gdi_SetRgn(rgn2, 300, 100, 100, 500);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* all outside, left */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 100, 300, 100, 100);
gdi_SetRgn(rgn2, 100, 300, 300, 100);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* all outside, right */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 700, 300, 100, 100);
gdi_SetRgn(rgn2, 300, 300, 500, 100);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* all outside, top */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 100, 100, 100);
gdi_SetRgn(rgn2, 300, 100, 100, 300);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* all outside, bottom */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 500, 100, 100);
gdi_SetRgn(rgn2, 300, 300, 100, 300);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* all outside */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 100, 100, 600, 600);
gdi_SetRgn(rgn2, 100, 100, 600, 600);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
/* everything */
gdi_SetRgn(invalid, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 0, 0, 1024, 768);
gdi_SetRgn(rgn2, 0, 0, 1024, 768);
gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
if (!gdi_EqualRgn(invalid, rgn2))
return -1;
return 0;
}
int test_gdi_ClipCoords(void)
{
BOOL draw;
HGDI_DC hdc;
HGDI_RGN rgn1;
HGDI_RGN rgn2;
HGDI_BITMAP bmp;
if (!(hdc = gdi_GetDC()))
{
printf("failed to get gdi device context\n");
return -1;
}
hdc->bytesPerPixel = 4;
hdc->bitsPerPixel = 32;
bmp = gdi_CreateBitmapEx(1024, 768, 4, NULL, NULL);
gdi_SelectObject(hdc, (HGDIOBJECT) bmp);
gdi_SetNullClipRgn(hdc);
rgn1 = gdi_CreateRectRgn(0, 0, 0, 0);
rgn2 = gdi_CreateRectRgn(0, 0, 0, 0);
rgn1->null = 1;
rgn2->null = 1;
/* null clipping region */
gdi_SetNullClipRgn(hdc);
gdi_SetRgn(rgn1, 20, 20, 100, 100);
gdi_SetRgn(rgn2, 20, 20, 100, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
/* region all inside clipping region */
gdi_SetClipRgn(hdc, 0, 0, 1024, 768);
gdi_SetRgn(rgn1, 20, 20, 100, 100);
gdi_SetRgn(rgn2, 20, 20, 100, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
/* region all outside clipping region, on the left */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 20, 20, 100, 100);
gdi_SetRgn(rgn2, 0, 0, 0, 0);
draw = gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (draw)
return -1;
/* region all outside clipping region, on the right */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 420, 420, 100, 100);
gdi_SetRgn(rgn2, 0, 0, 0, 0);
draw = gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (draw)
return -1;
/* region all outside clipping region, on top */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 20, 100, 100);
gdi_SetRgn(rgn2, 0, 0, 0, 0);
draw = gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (draw)
return -1;
/* region all outside clipping region, at the bottom */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 420, 100, 100);
gdi_SetRgn(rgn2, 0, 0, 0, 0);
draw = gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (draw)
return -1;
/* left outside, right = clip, top = clip, bottom = clip */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 100, 300, 300, 100);
gdi_SetRgn(rgn2, 300, 300, 100, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
/* left outside, right inside, top = clip, bottom = clip */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 100, 300, 250, 100);
gdi_SetRgn(rgn2, 300, 300, 50, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
/* left = clip, right outside, top = clip, bottom = clip */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 300, 300, 100);
gdi_SetRgn(rgn2, 300, 300, 100, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
/* left inside, right outside, top = clip, bottom = clip */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 350, 300, 200, 100);
gdi_SetRgn(rgn2, 350, 300, 50, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
/* top outside, bottom = clip, left = clip, right = clip */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 100, 300, 300);
gdi_SetRgn(rgn2, 300, 300, 100, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
/* top = clip, bottom outside, left = clip, right = clip */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 300, 100, 200);
gdi_SetRgn(rgn2, 300, 300, 100, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
/* top = clip, bottom = clip, top = clip, bottom = clip */
gdi_SetClipRgn(hdc, 300, 300, 100, 100);
gdi_SetRgn(rgn1, 300, 300, 100, 100);
gdi_SetRgn(rgn2, 300, 300, 100, 100);
gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
if (!gdi_EqualRgn(rgn1, rgn2))
return -1;
return 0;
}
BOOL gdi_SetClipRgn(HGDI_DC hdc, INT32 nXLeft, INT32 nYLeft, INT32 nWidth,
INT32 nHeight)
{
return gdi_SetRgn(hdc->clip, nXLeft, nYLeft, nWidth, nHeight);
}
int gdi_SetClipRgn(HGDI_DC hdc, int nXLeft, int nYLeft, int nWidth, int nHeight)
{
return gdi_SetRgn(hdc->clip, nXLeft, nYLeft, nWidth, nHeight);
}
INLINE int gdi_InvalidateRegion(HGDI_DC hdc, int x, int y, int w, int h)
{
GDI_RECT inv;
GDI_RECT rgn;
HGDI_RGN invalid;
HGDI_RGN cinvalid;
if (hdc->hwnd == NULL)
return 0;
if (hdc->hwnd->invalid == NULL)
return 0;
cinvalid = hdc->hwnd->cinvalid;
if (hdc->hwnd->ninvalid + 1 > hdc->hwnd->count)
{
hdc->hwnd->count *= 2;
cinvalid = (HGDI_RGN) realloc(cinvalid, sizeof(GDI_RGN) * (hdc->hwnd->count));
}
gdi_SetRgn(&cinvalid[hdc->hwnd->ninvalid++], x, y, w, h);
hdc->hwnd->cinvalid = cinvalid;
invalid = hdc->hwnd->invalid;
if (invalid->null)
{
invalid->x = x;
invalid->y = y;
invalid->w = w;
invalid->h = h;
invalid->null = 0;
return 0;
}
gdi_CRgnToRect(x, y, w, h, &rgn);
gdi_RgnToRect(invalid, &inv);
if (rgn.left < 0)
rgn.left = 0;
if (rgn.top < 0)
rgn.top = 0;
if (rgn.left < inv.left)
inv.left = rgn.left;
if (rgn.top < inv.top)
inv.top = rgn.top;
if (rgn.right > inv.right)
inv.right = rgn.right;
if (rgn.bottom > inv.bottom)
inv.bottom = rgn.bottom;
gdi_RectToRgn(&inv, invalid);
return 0;
}
