| /* DirectDraw - IDirectPalette base interface |
| * |
| * Copyright 1997-2000 Marcus Meissner |
| * Copyright 2000-2001 TransGaming Technologies Inc. |
| * Copyright 2006 Stefan Dösinger for CodeWeavers |
| * |
| * 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 "config.h" |
| #include "wine/port.h" |
| #include "winerror.h" |
| #include "wine/debug.h" |
| |
| #include <string.h> |
| |
| #include "wined3d_private.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(d3d); |
| |
| #define SIZE_BITS (WINEDDPCAPS_1BIT | WINEDDPCAPS_2BIT | WINEDDPCAPS_4BIT | WINEDDPCAPS_8BIT) |
| |
| ULONG CDECL wined3d_palette_incref(struct wined3d_palette *palette) |
| { |
| ULONG refcount = InterlockedIncrement(&palette->ref); |
| |
| TRACE("%p increasing refcount to %u.\n", palette, refcount); |
| |
| return refcount; |
| } |
| |
| ULONG CDECL wined3d_palette_decref(struct wined3d_palette *palette) |
| { |
| ULONG refcount = InterlockedDecrement(&palette->ref); |
| |
| TRACE("%p decreasing refcount to %u.\n", palette, refcount); |
| |
| if (!refcount) |
| { |
| DeleteObject(palette->hpal); |
| HeapFree(GetProcessHeap(), 0, palette); |
| } |
| |
| return refcount; |
| } |
| |
| static WORD wined3d_palette_size(DWORD flags) |
| { |
| switch (flags & SIZE_BITS) |
| { |
| case WINEDDPCAPS_1BIT: return 2; |
| case WINEDDPCAPS_2BIT: return 4; |
| case WINEDDPCAPS_4BIT: return 16; |
| case WINEDDPCAPS_8BIT: return 256; |
| default: |
| FIXME("Unhandled size bits %#x.\n", flags & SIZE_BITS); |
| return 256; |
| } |
| } |
| |
| HRESULT CDECL wined3d_palette_get_entries(const struct wined3d_palette *palette, |
| DWORD flags, DWORD start, DWORD count, PALETTEENTRY *entries) |
| { |
| TRACE("palette %p, flags %#x, start %u, count %u, entries %p.\n", |
| palette, flags, start, count, entries); |
| |
| if (flags) return WINED3DERR_INVALIDCALL; /* unchecked */ |
| if (start + count > wined3d_palette_size(palette->flags)) |
| return WINED3DERR_INVALIDCALL; |
| |
| if (palette->flags & WINEDDPCAPS_8BITENTRIES) |
| { |
| BYTE *entry = (BYTE *)entries; |
| unsigned int i; |
| |
| for (i = start; i < count + start; ++i) |
| *entry++ = palette->palents[i].peRed; |
| } |
| else |
| memcpy(entries, palette->palents + start, count * sizeof(*entries)); |
| |
| return WINED3D_OK; |
| } |
| |
| HRESULT CDECL wined3d_palette_set_entries(struct wined3d_palette *palette, |
| DWORD flags, DWORD start, DWORD count, const PALETTEENTRY *entries) |
| { |
| struct wined3d_resource *resource; |
| |
| TRACE("palette %p, flags %#x, start %u, count %u, entries %p.\n", |
| palette, flags, start, count, entries); |
| TRACE("Palette flags: %#x.\n", palette->flags); |
| |
| if (palette->flags & WINEDDPCAPS_8BITENTRIES) |
| { |
| const BYTE *entry = (const BYTE *)entries; |
| unsigned int i; |
| |
| for (i = start; i < count + start; ++i) |
| palette->palents[i].peRed = *entry++; |
| } |
| else |
| { |
| memcpy(palette->palents + start, entries, count * sizeof(*palette->palents)); |
| |
| /* When WINEDDCAPS_ALLOW256 isn't set we need to override entry 0 with black and 255 with white */ |
| if (!(palette->flags & WINEDDPCAPS_ALLOW256)) |
| { |
| TRACE("WINEDDPCAPS_ALLOW256 set, overriding palette entry 0 with black and 255 with white\n"); |
| palette->palents[0].peRed = 0; |
| palette->palents[0].peGreen = 0; |
| palette->palents[0].peBlue = 0; |
| |
| palette->palents[255].peRed = 255; |
| palette->palents[255].peGreen = 255; |
| palette->palents[255].peBlue = 255; |
| } |
| |
| if (palette->hpal) |
| SetPaletteEntries(palette->hpal, start, count, palette->palents + start); |
| } |
| |
| /* If the palette is attached to the render target, update all render targets */ |
| LIST_FOR_EACH_ENTRY(resource, &palette->device->resources, struct wined3d_resource, resource_list_entry) |
| { |
| if (resource->type == WINED3D_RTYPE_SURFACE) |
| { |
| struct wined3d_surface *surface = surface_from_resource(resource); |
| if (surface->palette == palette) |
| surface->surface_ops->surface_realize_palette(surface); |
| } |
| } |
| |
| return WINED3D_OK; |
| } |
| |
| DWORD CDECL wined3d_palette_get_flags(const struct wined3d_palette *palette) |
| { |
| TRACE("palette %p.\n", palette); |
| |
| return palette->flags; |
| } |
| |
| void * CDECL wined3d_palette_get_parent(const struct wined3d_palette *palette) |
| { |
| TRACE("palette %p.\n", palette); |
| |
| return palette->parent; |
| } |
| |
| static HRESULT wined3d_palette_init(struct wined3d_palette *palette, struct wined3d_device *device, |
| DWORD flags, const PALETTEENTRY *entries, void *parent) |
| { |
| HRESULT hr; |
| |
| palette->ref = 1; |
| palette->parent = parent; |
| palette->device = device; |
| palette->flags = flags; |
| |
| palette->palNumEntries = wined3d_palette_size(flags); |
| palette->hpal = CreatePalette((const LOGPALETTE *)&palette->palVersion); |
| if (!palette->hpal) |
| { |
| WARN("Failed to create palette.\n"); |
| return E_FAIL; |
| } |
| |
| hr = wined3d_palette_set_entries(palette, 0, 0, wined3d_palette_size(flags), entries); |
| if (FAILED(hr)) |
| { |
| WARN("Failed to set palette entries, hr %#x.\n", hr); |
| DeleteObject(palette->hpal); |
| return hr; |
| } |
| |
| return WINED3D_OK; |
| } |
| |
| HRESULT CDECL wined3d_palette_create(struct wined3d_device *device, DWORD flags, |
| const PALETTEENTRY *entries, void *parent, struct wined3d_palette **palette) |
| { |
| struct wined3d_palette *object; |
| HRESULT hr; |
| |
| TRACE("device %p, flags %#x, entries %p, palette %p, parent %p.\n", |
| device, flags, entries, palette, parent); |
| |
| object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object)); |
| if (!object) |
| return E_OUTOFMEMORY; |
| |
| hr = wined3d_palette_init(object, device, flags, entries, parent); |
| if (FAILED(hr)) |
| { |
| WARN("Failed to initialize palette, hr %#x.\n", hr); |
| HeapFree(GetProcessHeap(), 0, object); |
| return hr; |
| } |
| |
| TRACE("Created palette %p.\n", object); |
| *palette = object; |
| |
| return WINED3D_OK; |
| } |