Sweden-Number/graphics/ttydrv/bitmap.c

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/*
* TTY bitmap driver
*
* Copyright 1999 Patrik Stridvall
*/
#include "bitmap.h"
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#include "dc.h"
#include "ttydrv.h"
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#include "winbase.h"
#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(ttydrv)
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/**********************************************************************/
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static LONG TTYDRV_DC_GetBitmapBits(BITMAPOBJ *bitmap, void *bits, LONG count);
static LONG TTYDRV_DC_SetBitmapBits(BITMAPOBJ *bitmap, void *bits, LONG count);
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/***********************************************************************
* TTYDRV_DC_AllocBitmap
*/
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TTYDRV_PHYSBITMAP *TTYDRV_DC_AllocBitmap(BITMAPOBJ *bitmap)
{
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TTYDRV_PHYSBITMAP *physBitmap;
if(!(bitmap->DDBitmap = HeapAlloc(GetProcessHeap(), 0, sizeof(DDBITMAP)))) {
ERR("Can't alloc DDBITMAP\n");
return NULL;
}
if(!(physBitmap = HeapAlloc(GetProcessHeap(), 0, sizeof(TTYDRV_PHYSBITMAP)))) {
ERR("Can't alloc TTYDRV_PHYSBITMAP\n");
HeapFree(GetProcessHeap(), 0, bitmap->DDBitmap);
return NULL;
}
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bitmap->DDBitmap->physBitmap = physBitmap;
bitmap->DDBitmap->funcs = DRIVER_FindDriver("DISPLAY");
return physBitmap;
}
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/***********************************************************************
* TTYDRV_DC_BitmapBits
*/
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LONG TTYDRV_DC_BitmapBits(HBITMAP hbitmap, void *bits, LONG count, WORD flags)
{
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BITMAPOBJ *bitmap;
LONG result;
if(!(bitmap = (BITMAPOBJ *) GDI_GetObjPtr(hbitmap, BITMAP_MAGIC)))
return FALSE;
if(flags == DDB_GET)
result = TTYDRV_DC_GetBitmapBits(bitmap, bits, count);
else if(flags == DDB_SET)
result = TTYDRV_DC_SetBitmapBits(bitmap, bits, count);
else {
ERR("Unknown flags value %d\n", flags);
result = 0;
}
GDI_HEAP_UNLOCK(hbitmap);
return result;
}
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/***********************************************************************
* TTYDRV_DC_CreateBitmap
*/
BOOL TTYDRV_DC_CreateBitmap(HBITMAP hbitmap)
{
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TTYDRV_PHYSBITMAP *physBitmap;
BITMAPOBJ *bitmap;
TRACE("(0x%04x)\n", hbitmap);
if(!(bitmap = (BITMAPOBJ *) GDI_GetObjPtr(hbitmap, BITMAP_MAGIC)))
return FALSE;
if(!(physBitmap = TTYDRV_DC_AllocBitmap(bitmap))) {
GDI_HEAP_UNLOCK(hbitmap);
return FALSE;
}
/* Set bitmap bits */
if(bitmap->bitmap.bmBits) {
TTYDRV_DC_BitmapBits(hbitmap, bitmap->bitmap.bmBits,
bitmap->bitmap.bmHeight * bitmap->bitmap.bmWidthBytes,
DDB_SET );
}
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GDI_HEAP_UNLOCK(hbitmap);
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return TRUE;
}
/***********************************************************************
* TTYDRV_DC_BITMAP_DeleteObject
*/
BOOL TTYDRV_DC_BITMAP_DeleteObject(HBITMAP hbitmap, BITMAPOBJ *bitmap)
{
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TRACE("(0x%04x, %p)\n", hbitmap, bitmap);
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HeapFree(GetProcessHeap(), 0, bitmap->DDBitmap->physBitmap);
HeapFree(GetProcessHeap(), 0, bitmap->DDBitmap);
bitmap->DDBitmap = NULL;
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return TRUE;
}
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/***********************************************************************
* TTYDRV_DC_GetBitmapBits
*/
static LONG TTYDRV_DC_GetBitmapBits(BITMAPOBJ *bitmap, void *bits, LONG count)
{
FIXME("(%p, %p, %ld): stub\n", bitmap, bits, count);
memset(bits, 0, count);
return count;
}
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/***********************************************************************
* TTYDRV_DC_BITMAP_SelectObject
*/
HBITMAP TTYDRV_DC_BITMAP_SelectObject(DC *dc, HBITMAP hbitmap, BITMAPOBJ *bitmap)
{
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HBITMAP hPreviousBitmap;
TRACE("(%p, 0x%04x, %p)\n", dc, hbitmap, bitmap);
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if(!(dc->w.flags & DC_MEMORY))
return NULL;
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/* Assure that the bitmap device dependent */
if(!bitmap->DDBitmap && !TTYDRV_DC_CreateBitmap(hbitmap))
return NULL;
if(bitmap->DDBitmap->funcs != dc->funcs) {
ERR("Trying to select a non-TTY DDB into a TTY DC\n");
return NULL;
}
dc->w.totalExtent.left = 0;
dc->w.totalExtent.top = 0;
dc->w.totalExtent.right = bitmap->bitmap.bmWidth;
dc->w.totalExtent.bottom = bitmap->bitmap.bmHeight;
/* FIXME: Should be done in the common code instead */
if(dc->w.hVisRgn) {
SetRectRgn(dc->w.hVisRgn, 0, 0,
bitmap->bitmap.bmWidth, bitmap->bitmap.bmHeight);
} else {
HRGN hrgn;
if(!(hrgn = CreateRectRgn(0, 0, bitmap->bitmap.bmWidth, bitmap->bitmap.bmHeight)))
return NULL;
dc->w.hVisRgn = hrgn;
}
hPreviousBitmap = dc->w.hBitmap;
dc->w.hBitmap = hbitmap;
return hPreviousBitmap;
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}
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/***********************************************************************
* TTYDRV_DC_SetBitmapBits
*/
static LONG TTYDRV_DC_SetBitmapBits(BITMAPOBJ *bitmap, void *bits, LONG count)
{
FIXME("(%p, %p, %ld): semistub\n", bitmap, bits, count);
return count;
}