FreeRDP/client/Windows/wf_graphics.c
2019-11-07 10:53:54 +01:00

371 lines
8.5 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Windows Graphical Objects
*
* Copyright 2010-2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <winpr/crt.h>
#include <freerdp/codecs.h>
#include <freerdp/log.h>
#include "wf_gdi.h"
#include "wf_graphics.h"
#define TAG CLIENT_TAG("windows")
HBITMAP wf_create_dib(wfContext* wfc, UINT32 width, UINT32 height, UINT32 srcFormat,
const BYTE* data, BYTE** pdata)
{
HDC hdc;
int negHeight;
HBITMAP bitmap;
BITMAPINFO bmi;
BYTE* cdata = NULL;
UINT32 dstFormat = srcFormat;
/**
* See: http://msdn.microsoft.com/en-us/library/dd183376
* if biHeight is positive, the bitmap is bottom-up
* if biHeight is negative, the bitmap is top-down
* Since we get top-down bitmaps, let's keep it that way
*/
negHeight = (height < 0) ? height : height * (-1);
hdc = GetDC(NULL);
bmi.bmiHeader.biSize = sizeof(BITMAPINFO);
bmi.bmiHeader.biWidth = width;
bmi.bmiHeader.biHeight = negHeight;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = GetBitsPerPixel(dstFormat);
bmi.bmiHeader.biCompression = BI_RGB;
bitmap = CreateDIBSection(hdc, &bmi, DIB_RGB_COLORS, (void**)&cdata, NULL, 0);
if (data)
freerdp_image_copy(cdata, dstFormat, 0, 0, 0, width, height, data, srcFormat, 0, 0, 0,
&wfc->context.gdi->palette, FREERDP_FLIP_NONE);
if (pdata)
*pdata = cdata;
ReleaseDC(NULL, hdc);
GdiFlush();
return bitmap;
}
wfBitmap* wf_image_new(wfContext* wfc, UINT32 width, UINT32 height, UINT32 format, const BYTE* data)
{
HDC hdc;
wfBitmap* image;
hdc = GetDC(NULL);
image = (wfBitmap*)malloc(sizeof(wfBitmap));
image->hdc = CreateCompatibleDC(hdc);
image->bitmap = wf_create_dib(wfc, width, height, format, data, &(image->pdata));
image->org_bitmap = (HBITMAP)SelectObject(image->hdc, image->bitmap);
ReleaseDC(NULL, hdc);
return image;
}
void wf_image_free(wfBitmap* image)
{
if (image != 0)
{
SelectObject(image->hdc, image->org_bitmap);
DeleteObject(image->bitmap);
DeleteDC(image->hdc);
free(image);
}
}
/* Bitmap Class */
static BOOL wf_Bitmap_New(rdpContext* context, rdpBitmap* bitmap)
{
HDC hdc;
wfContext* wfc = (wfContext*)context;
wfBitmap* wf_bitmap = (wfBitmap*)bitmap;
if (!context || !bitmap)
return FALSE;
wf_bitmap = (wfBitmap*)bitmap;
hdc = GetDC(NULL);
wf_bitmap->hdc = CreateCompatibleDC(hdc);
if (!bitmap->data)
wf_bitmap->bitmap = CreateCompatibleBitmap(hdc, bitmap->width, bitmap->height);
else
wf_bitmap->bitmap =
wf_create_dib(wfc, bitmap->width, bitmap->height, bitmap->format, bitmap->data, NULL);
wf_bitmap->org_bitmap = (HBITMAP)SelectObject(wf_bitmap->hdc, wf_bitmap->bitmap);
ReleaseDC(NULL, hdc);
return TRUE;
}
static void wf_Bitmap_Free(rdpContext* context, rdpBitmap* bitmap)
{
wfBitmap* wf_bitmap = (wfBitmap*)bitmap;
if (wf_bitmap != 0)
{
SelectObject(wf_bitmap->hdc, wf_bitmap->org_bitmap);
DeleteObject(wf_bitmap->bitmap);
DeleteDC(wf_bitmap->hdc);
_aligned_free(wf_bitmap->_bitmap.data);
wf_bitmap->_bitmap.data = NULL;
}
}
static BOOL wf_Bitmap_Paint(rdpContext* context, rdpBitmap* bitmap)
{
BOOL rc;
UINT32 width, height;
wfContext* wfc = (wfContext*)context;
wfBitmap* wf_bitmap = (wfBitmap*)bitmap;
if (!context || !bitmap)
return FALSE;
width = bitmap->right - bitmap->left + 1;
height = bitmap->bottom - bitmap->top + 1;
rc = BitBlt(wfc->primary->hdc, bitmap->left, bitmap->top, width, height, wf_bitmap->hdc, 0, 0,
SRCCOPY);
wf_invalidate_region(wfc, bitmap->left, bitmap->top, width, height);
return rc;
}
static BOOL wf_Bitmap_SetSurface(rdpContext* context, rdpBitmap* bitmap, BOOL primary)
{
wfContext* wfc = (wfContext*)context;
wfBitmap* bmp = (wfBitmap*)bitmap;
rdpGdi* gdi = context->gdi;
if (!gdi || !wfc)
return FALSE;
if (primary)
wfc->drawing = wfc->primary;
else if (!bmp)
return FALSE;
else
wfc->drawing = bmp;
return TRUE;
}
/* Pointer Class */
static BOOL flip_bitmap(const BYTE* src, BYTE* dst, UINT32 scanline, UINT32 nHeight)
{
UINT32 x;
BYTE* bottomLine = dst + scanline * (nHeight - 1);
for (x = 0; x < nHeight; x++)
{
memcpy(bottomLine, src, scanline);
src += scanline;
bottomLine -= scanline;
}
return TRUE;
}
static BOOL wf_Pointer_New(rdpContext* context, const rdpPointer* pointer)
{
HCURSOR hCur;
ICONINFO info;
rdpGdi* gdi;
BOOL rc = FALSE;
if (!context || !pointer)
return FALSE;
gdi = context->gdi;
if (!gdi)
return FALSE;
info.fIcon = FALSE;
info.xHotspot = pointer->xPos;
info.yHotspot = pointer->yPos;
if (pointer->xorBpp == 1)
{
BYTE* pdata = (BYTE*)_aligned_malloc(pointer->lengthAndMask + pointer->lengthXorMask, 16);
if (!pdata)
goto fail;
CopyMemory(pdata, pointer->andMaskData, pointer->lengthAndMask);
CopyMemory(pdata + pointer->lengthAndMask, pointer->xorMaskData, pointer->lengthXorMask);
info.hbmMask = CreateBitmap(pointer->width, pointer->height * 2, 1, 1, pdata);
_aligned_free(pdata);
info.hbmColor = NULL;
}
else
{
UINT32 srcFormat;
BYTE* pdata = (BYTE*)_aligned_malloc(pointer->lengthAndMask, 16);
if (!pdata)
goto fail;
flip_bitmap(pointer->andMaskData, pdata, (pointer->width + 7) / 8, pointer->height);
info.hbmMask = CreateBitmap(pointer->width, pointer->height, 1, 1, pdata);
_aligned_free(pdata);
/* currently color xorBpp is only 24 per [T128] section 8.14.3 */
srcFormat = gdi_get_pixel_format(pointer->xorBpp);
if (!srcFormat)
goto fail;
info.hbmColor = wf_create_dib((wfContext*)context, pointer->width, pointer->height,
srcFormat, NULL, &pdata);
if (!info.hbmColor)
goto fail;
if (!freerdp_image_copy_from_pointer_data(
pdata, gdi->dstFormat, 0, 0, 0, pointer->width, pointer->height,
pointer->xorMaskData, pointer->lengthXorMask, pointer->andMaskData,
pointer->lengthAndMask, pointer->xorBpp, &gdi->palette))
{
goto fail;
}
}
hCur = CreateIconIndirect(&info);
((wfPointer*)pointer)->cursor = hCur;
rc = TRUE;
fail:
if (info.hbmMask)
DeleteObject(info.hbmMask);
if (info.hbmColor)
DeleteObject(info.hbmColor);
return rc;
}
static BOOL wf_Pointer_Free(rdpContext* context, rdpPointer* pointer)
{
HCURSOR hCur;
if (!context || !pointer)
return FALSE;
hCur = ((wfPointer*)pointer)->cursor;
if (hCur != 0)
DestroyIcon(hCur);
return TRUE;
}
static BOOL wf_Pointer_Set(rdpContext* context, const rdpPointer* pointer)
{
HCURSOR hCur;
wfContext* wfc = (wfContext*)context;
if (!context || !pointer)
return FALSE;
hCur = ((wfPointer*)pointer)->cursor;
if (hCur != NULL)
{
SetCursor(hCur);
wfc->cursor = hCur;
}
return TRUE;
}
static BOOL wf_Pointer_SetNull(rdpContext* context)
{
if (!context)
return FALSE;
return TRUE;
}
static BOOL wf_Pointer_SetDefault(rdpContext* context)
{
if (!context)
return FALSE;
return TRUE;
}
static BOOL wf_Pointer_SetPosition(rdpContext* context, UINT32 x, UINT32 y)
{
if (!context)
return FALSE;
return TRUE;
}
BOOL wf_register_pointer(rdpGraphics* graphics)
{
wfContext* wfc;
rdpPointer pointer;
if (!graphics)
return FALSE;
wfc = (wfContext*)graphics->context;
ZeroMemory(&pointer, sizeof(rdpPointer));
pointer.size = sizeof(wfPointer);
pointer.New = wf_Pointer_New;
pointer.Free = wf_Pointer_Free;
pointer.Set = wf_Pointer_Set;
pointer.SetNull = wf_Pointer_SetNull;
pointer.SetDefault = wf_Pointer_SetDefault;
pointer.SetPosition = wf_Pointer_SetPosition;
graphics_register_pointer(graphics, &pointer);
return TRUE;
}
/* Graphics Module */
BOOL wf_register_graphics(rdpGraphics* graphics)
{
wfContext* wfc;
rdpGlyph glyph;
rdpBitmap bitmap;
if (!graphics)
return FALSE;
wfc = (wfContext*)graphics->context;
bitmap = *graphics->Bitmap_Prototype;
bitmap.size = sizeof(wfBitmap);
bitmap.New = wf_Bitmap_New;
bitmap.Free = wf_Bitmap_Free;
bitmap.Paint = wf_Bitmap_Paint;
bitmap.SetSurface = wf_Bitmap_SetSurface;
graphics_register_bitmap(graphics, &bitmap);
glyph = *graphics->Glyph_Prototype;
graphics_register_glyph(graphics, &glyph);
return TRUE;
}