/*
 * Copyright 2012 Vincent Povirk 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 <stdarg.h>
#include <math.h>

#define COBJMACROS

#include "windef.h"
#include "objbase.h"
#include "wincodec.h"
#include "wine/test.h"

static IWICImagingFactory *factory;

static void test_createbitmap(void)
{
    HRESULT hr;
    IWICBitmap *bitmap;
    IWICPalette *palette;
    IWICBitmapLock *lock, *lock2;
    WICBitmapPaletteType palettetype;
    int i;
    WICRect rc;
    const BYTE bitmap_data[27] = {
        128,128,255, 128,128,128, 128,255,128,
        128,128,128, 128,128,128, 255,255,255,
        255,128,128, 255,255,255, 255,255,255};
    BYTE returned_data[27] = {0};
    BYTE *lock_buffer=NULL, *base_lock_buffer=NULL;
    UINT lock_buffer_size=0;
    UINT lock_buffer_stride=0;
    WICPixelFormatGUID pixelformat = {0};
    UINT width=0, height=0;
    double dpix=10.0, dpiy=10.0;
    int can_lock_null = 1;

    hr = IWICImagingFactory_CreateBitmap(factory, 3, 3, &GUID_WICPixelFormat24bppBGR,
        WICBitmapCacheOnLoad, &bitmap);
    ok(hr == S_OK, "IWICImagingFactory_CreateBitmap failed hr=%x\n", hr);

    if (FAILED(hr))
        return;

    hr = IWICImagingFactory_CreatePalette(factory, &palette);
    ok(hr == S_OK, "IWICImagingFactory_CreatePalette failed hr=%x\n", hr);

    /* Palette is unavailable until explicitly set */
    hr = IWICBitmap_CopyPalette(bitmap, palette);
    ok(hr == WINCODEC_ERR_PALETTEUNAVAILABLE, "IWICBitmap_CopyPalette failed hr=%x\n", hr);

    hr = IWICPalette_InitializePredefined(palette, WICBitmapPaletteTypeFixedGray256, FALSE);
    ok(hr == S_OK, "IWICPalette_InitializePredefined failed hr=%x\n", hr);

    hr = IWICBitmap_SetPalette(bitmap, palette);
    ok(hr == S_OK, "IWICBitmap_SetPalette failed hr=%x\n", hr);

    hr = IWICPalette_InitializePredefined(palette, WICBitmapPaletteTypeFixedGray4, FALSE);
    ok(hr == S_OK, "IWICPalette_InitializePredefined failed hr=%x\n", hr);

    hr = IWICBitmap_CopyPalette(bitmap, palette);
    ok(hr == S_OK, "IWICBitmap_CopyPalette failed hr=%x\n", hr);

    hr = IWICPalette_GetType(palette, &palettetype);
    ok(hr == S_OK, "IWICPalette_GetType failed hr=%x\n", hr);
    ok(palettetype == WICBitmapPaletteTypeFixedGray256,
        "expected WICBitmapPaletteTypeFixedGray256, got %x\n", palettetype);

    IWICPalette_Release(palette);

    /* pixel data is initially zeroed */
    hr = IWICBitmap_CopyPixels(bitmap, NULL, 9, 27, returned_data);
    ok(hr == S_OK, "IWICBitmap_CopyPixels failed hr=%x\n", hr);

    for (i=0; i<27; i++)
        ok(returned_data[i] == 0, "returned_data[%i] == %i\n", i, returned_data[i]);

    /* Invalid lock rects */
    rc.X = rc.Y = 0;
    rc.Width = 4;
    rc.Height = 3;
    hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockRead, &lock);
    ok(hr == E_INVALIDARG, "IWICBitmap_Lock failed hr=%x\n", hr);
    if (SUCCEEDED(hr)) IWICBitmapLock_Release(lock);

    rc.Width = 3;
    rc.Height = 4;
    hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockRead, &lock);
    ok(hr == E_INVALIDARG, "IWICBitmap_Lock failed hr=%x\n", hr);
    if (SUCCEEDED(hr)) IWICBitmapLock_Release(lock);

    rc.Height = 3;
    rc.X = 4;
    hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockRead, &lock);
    ok(hr == E_INVALIDARG, "IWICBitmap_Lock failed hr=%x\n", hr);
    if (SUCCEEDED(hr)) IWICBitmapLock_Release(lock);

    rc.X = 0;
    rc.Y = 4;
    hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockRead, &lock);
    ok(hr == E_INVALIDARG, "IWICBitmap_Lock failed hr=%x\n", hr);
    if (SUCCEEDED(hr)) IWICBitmapLock_Release(lock);

    /* NULL lock rect */
    hr = IWICBitmap_Lock(bitmap, NULL, WICBitmapLockRead, &lock);
    ok(hr == S_OK || broken(hr == E_INVALIDARG) /* winxp */, "IWICBitmap_Lock failed hr=%x\n", hr);

    if (SUCCEEDED(hr))
    {
        /* entire bitmap is locked */
        hr = IWICBitmapLock_GetSize(lock, &width, &height);
        ok(hr == S_OK, "IWICBitmapLock_GetSize failed hr=%x\n", hr);
        ok(width == 3, "got %d, expected 3\n", width);
        ok(height == 3, "got %d, expected 3\n", height);

        IWICBitmapLock_Release(lock);
    }
    else
        can_lock_null = 0;

    /* lock with a valid rect */
    rc.Y = 0;
    hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockRead, &lock);
    ok(hr == S_OK, "IWICBitmap_Lock failed hr=%x\n", hr);
    if (SUCCEEDED(hr))
    {
        hr = IWICBitmapLock_GetStride(lock, &lock_buffer_stride);
        ok(hr == S_OK, "IWICBitmapLock_GetStride failed hr=%x\n", hr);
        /* stride is divisible by 4 */
        ok(lock_buffer_stride == 12, "got %i, expected 12\n", lock_buffer_stride);

        hr = IWICBitmapLock_GetDataPointer(lock, &lock_buffer_size, &lock_buffer);
        ok(hr == S_OK, "IWICBitmapLock_GetDataPointer failed hr=%x\n", hr);
        /* buffer size does not include padding from the last row */
        ok(lock_buffer_size == 33, "got %i, expected 33\n", lock_buffer_size);
        ok(lock_buffer != NULL, "got NULL data pointer\n");
        base_lock_buffer = lock_buffer;

        hr = IWICBitmapLock_GetPixelFormat(lock, &pixelformat);
        ok(hr == S_OK, "IWICBitmapLock_GetPixelFormat failed hr=%x\n", hr);
        ok(IsEqualGUID(&pixelformat, &GUID_WICPixelFormat24bppBGR), "unexpected pixel format\n");

        hr = IWICBitmapLock_GetSize(lock, &width, &height);
        ok(hr == S_OK, "IWICBitmapLock_GetSize failed hr=%x\n", hr);
        ok(width == 3, "got %d, expected 3\n", width);
        ok(height == 3, "got %d, expected 3\n", height);

        /* We can have multiple simultaneous read locks */
        hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockRead, &lock2);
        ok(hr == S_OK, "IWICBitmap_Lock failed hr=%x\n", hr);

        if (SUCCEEDED(hr))
        {
            hr = IWICBitmapLock_GetDataPointer(lock2, &lock_buffer_size, &lock_buffer);
            ok(hr == S_OK, "IWICBitmapLock_GetDataPointer failed hr=%x\n", hr);
            ok(lock_buffer_size == 33, "got %i, expected 33\n", lock_buffer_size);
            ok(lock_buffer == base_lock_buffer, "got %p, expected %p\n", lock_buffer, base_lock_buffer);

            IWICBitmapLock_Release(lock2);
        }

        if (can_lock_null) /* this hangs on xp/vista */
        {
            /* But not a read and a write lock */
            hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockWrite, &lock2);
            ok(hr == WINCODEC_ERR_ALREADYLOCKED, "IWICBitmap_Lock failed hr=%x\n", hr);
        }

        /* But we don't need a write lock to write */
        if (base_lock_buffer)
        {
            for (i=0; i<3; i++)
                memcpy(base_lock_buffer + lock_buffer_stride*i, bitmap_data + i*9, 9);
        }

        IWICBitmapLock_Release(lock);
    }

    /* test that the data we wrote is returned by CopyPixels */
    hr = IWICBitmap_CopyPixels(bitmap, NULL, 9, 27, returned_data);
    ok(hr == S_OK, "IWICBitmap_CopyPixels failed hr=%x\n", hr);

    for (i=0; i<27; i++)
        ok(returned_data[i] == bitmap_data[i], "returned_data[%i] == %i\n", i, returned_data[i]);

    /* try a valid partial rect, and write mode */
    rc.X = 2;
    rc.Y = 0;
    rc.Width = 1;
    rc.Height = 2;
    hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockWrite, &lock);
    ok(hr == S_OK, "IWICBitmap_Lock failed hr=%x\n", hr);

    if (SUCCEEDED(hr))
    {
        if (can_lock_null) /* this hangs on xp/vista */
        {
            /* Can't lock again while locked for writing */
            hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockWrite, &lock2);
            ok(hr == WINCODEC_ERR_ALREADYLOCKED, "IWICBitmap_Lock failed hr=%x\n", hr);

            hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockRead, &lock2);
            ok(hr == WINCODEC_ERR_ALREADYLOCKED, "IWICBitmap_Lock failed hr=%x\n", hr);
        }

        hr = IWICBitmapLock_GetStride(lock, &lock_buffer_stride);
        ok(hr == S_OK, "IWICBitmapLock_GetStride failed hr=%x\n", hr);
        ok(lock_buffer_stride == 12, "got %i, expected 12\n", lock_buffer_stride);

        hr = IWICBitmapLock_GetDataPointer(lock, &lock_buffer_size, &lock_buffer);
        ok(hr == S_OK, "IWICBitmapLock_GetDataPointer failed hr=%x\n", hr);
        ok(lock_buffer_size == 15, "got %i, expected 15\n", lock_buffer_size);
        ok(lock_buffer == base_lock_buffer+6, "got %p, expected %p+6\n", lock_buffer, base_lock_buffer);

        hr = IWICBitmapLock_GetPixelFormat(lock, &pixelformat);
        ok(hr == S_OK, "IWICBitmapLock_GetPixelFormat failed hr=%x\n", hr);
        ok(IsEqualGUID(&pixelformat, &GUID_WICPixelFormat24bppBGR), "unexpected pixel format\n");

        hr = IWICBitmapLock_GetSize(lock, &width, &height);
        ok(hr == S_OK, "IWICBitmapLock_GetSize failed hr=%x\n", hr);
        ok(width == 1, "got %d, expected 1\n", width);
        ok(height == 2, "got %d, expected 2\n", height);

        IWICBitmapLock_Release(lock);
    }

    hr = IWICBitmap_GetPixelFormat(bitmap, &pixelformat);
    ok(hr == S_OK, "IWICBitmap_GetPixelFormat failed hr=%x\n", hr);
    ok(IsEqualGUID(&pixelformat, &GUID_WICPixelFormat24bppBGR), "unexpected pixel format\n");

    hr = IWICBitmap_GetResolution(bitmap, &dpix, &dpiy);
    ok(hr == S_OK, "IWICBitmap_GetResolution failed hr=%x\n", hr);
    ok(dpix == 0.0, "got %f, expected 0.0\n", dpix);
    ok(dpiy == 0.0, "got %f, expected 0.0\n", dpiy);

    hr = IWICBitmap_SetResolution(bitmap, 12.0, 34.0);
    ok(hr == S_OK, "IWICBitmap_SetResolution failed hr=%x\n", hr);

    hr = IWICBitmap_GetResolution(bitmap, &dpix, &dpiy);
    ok(hr == S_OK, "IWICBitmap_GetResolution failed hr=%x\n", hr);
    ok(dpix == 12.0, "got %f, expected 12.0\n", dpix);
    ok(dpiy == 34.0, "got %f, expected 34.0\n", dpiy);

    hr = IWICBitmap_GetSize(bitmap, &width, &height);
    ok(hr == S_OK, "IWICBitmap_GetSize failed hr=%x\n", hr);
    ok(width == 3, "got %d, expected 3\n", width);
    ok(height == 3, "got %d, expected 3\n", height);

    IWICBitmap_Release(bitmap);
}

static void test_createbitmapfromsource(void)
{
    HRESULT hr;
    IWICBitmap *bitmap, *bitmap2;
    IWICPalette *palette;
    IWICBitmapLock *lock;
    int i;
    WICRect rc;
    const BYTE bitmap_data[27] = {
        128,128,255, 128,128,128, 128,255,128,
        128,128,128, 128,128,128, 255,255,255,
        255,128,128, 255,255,255, 255,255,255};
    BYTE returned_data[27] = {0};
    BYTE *lock_buffer=NULL;
    UINT lock_buffer_stride=0;
    UINT lock_buffer_size=0;
    WICPixelFormatGUID pixelformat = {0};
    UINT width=0, height=0;
    double dpix=10.0, dpiy=10.0;

    hr = IWICImagingFactory_CreateBitmap(factory, 3, 3, &GUID_WICPixelFormat24bppBGR,
        WICBitmapCacheOnLoad, &bitmap);
    ok(hr == S_OK, "IWICImagingFactory_CreateBitmap failed hr=%x\n", hr);

    if (FAILED(hr))
        return;

    hr = IWICImagingFactory_CreatePalette(factory, &palette);
    ok(hr == S_OK, "IWICImagingFactory_CreatePalette failed hr=%x\n", hr);

    hr = IWICPalette_InitializePredefined(palette, WICBitmapPaletteTypeFixedGray256, FALSE);
    ok(hr == S_OK, "IWICPalette_InitializePredefined failed hr=%x\n", hr);

    hr = IWICBitmap_SetPalette(bitmap, palette);
    ok(hr == S_OK, "IWICBitmap_SetPalette failed hr=%x\n", hr);

    IWICPalette_Release(palette);

    rc.X = rc.Y = 0;
    rc.Width = 3;
    rc.Height = 3;
    hr = IWICBitmap_Lock(bitmap, &rc, WICBitmapLockWrite, &lock);
    ok(hr == S_OK, "IWICBitmap_Lock failed hr=%x\n", hr);
    if (SUCCEEDED(hr))
    {
        hr = IWICBitmapLock_GetStride(lock, &lock_buffer_stride);
        ok(hr == S_OK, "IWICBitmapLock_GetStride failed hr=%x\n", hr);
        ok(lock_buffer_stride == 12, "got %i, expected 12\n", lock_buffer_stride);

        hr = IWICBitmapLock_GetDataPointer(lock, &lock_buffer_size, &lock_buffer);
        ok(hr == S_OK, "IWICBitmapLock_GetDataPointer failed hr=%x\n", hr);
        ok(lock_buffer_size == 33, "got %i, expected 33\n", lock_buffer_size);
        ok(lock_buffer != NULL, "got NULL data pointer\n");

        for (i=0; i<3; i++)
            memcpy(lock_buffer + lock_buffer_stride*i, bitmap_data + i*9, 9);

        IWICBitmapLock_Release(lock);
    }

    hr = IWICBitmap_SetResolution(bitmap, 12.0, 34.0);
    ok(hr == S_OK, "IWICBitmap_SetResolution failed hr=%x\n", hr);

    hr = IWICImagingFactory_CreateBitmapFromSource(factory, (IWICBitmapSource*)bitmap,
        WICBitmapCacheOnLoad, &bitmap2);
    ok(hr == S_OK, "IWICImagingFactory_CreateBitmapFromSource failed hr=%x\n", hr);

    IWICBitmap_Release(bitmap);

    if (FAILED(hr)) return;

    hr = IWICImagingFactory_CreatePalette(factory, &palette);
    ok(hr == S_OK, "IWICImagingFactory_CreatePalette failed hr=%x\n", hr);

    /* palette isn't copied for non-indexed formats? */
    hr = IWICBitmap_CopyPalette(bitmap2, palette);
    todo_wine ok(hr == WINCODEC_ERR_PALETTEUNAVAILABLE, "IWICBitmap_CopyPalette failed hr=%x\n", hr);

    IWICPalette_Release(palette);

    hr = IWICBitmap_CopyPixels(bitmap2, NULL, 9, 27, returned_data);
    ok(hr == S_OK, "IWICBitmap_CopyPixels failed hr=%x\n", hr);

    for (i=0; i<27; i++)
        ok(returned_data[i] == bitmap_data[i], "returned_data[%i] == %i\n", i, returned_data[i]);

    hr = IWICBitmap_GetPixelFormat(bitmap2, &pixelformat);
    ok(hr == S_OK, "IWICBitmap_GetPixelFormat failed hr=%x\n", hr);
    ok(IsEqualGUID(&pixelformat, &GUID_WICPixelFormat24bppBGR), "unexpected pixel format\n");

    hr = IWICBitmap_GetResolution(bitmap2, &dpix, &dpiy);
    ok(hr == S_OK, "IWICBitmap_GetResolution failed hr=%x\n", hr);
    ok(dpix == 12.0, "got %f, expected 12.0\n", dpix);
    ok(dpiy == 34.0, "got %f, expected 34.0\n", dpiy);

    hr = IWICBitmap_GetSize(bitmap2, &width, &height);
    ok(hr == S_OK, "IWICBitmap_GetSize failed hr=%x\n", hr);
    ok(width == 3, "got %d, expected 3\n", width);
    ok(height == 3, "got %d, expected 3\n", height);

    IWICBitmap_Release(bitmap2);
}

START_TEST(bitmap)
{
    HRESULT hr;

    CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);

    hr = CoCreateInstance(&CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER,
        &IID_IWICImagingFactory, (void**)&factory);
    ok(SUCCEEDED(hr), "CoCreateInstance failed, hr=%x\n", hr);

    test_createbitmap();
    test_createbitmapfromsource();

    IWICImagingFactory_Release(factory);

    CoUninitialize();
}