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Lots of new stuff and tweaks to old specs. 

DisplayDriver documentation incomplete.
ServerCursor docs nonexistent.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2442 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
DarkWyrm 2003-01-12 22:51:01 +00:00
parent 75b2a820de
commit cd5337c0a2
6 changed files with 1151 additions and 0 deletions
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474
src/servers/app/server/DisplayDriver.cpp Normal file
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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: DisplayDriver.cpp
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Description: Mostly abstract class which handles all graphics output
// for the server
//
//------------------------------------------------------------------------------
#include "DisplayDriver.h"
#include "ServerCursor.h"
/*!
\brief Sets up internal variables needed by all DisplayDriver subclasses
Subclasses should follow DisplayDriver's lead and use this function mostly
for initializing data members.
*/
DisplayDriver::DisplayDriver(void)
{
_lock_sem=create_sem(1,"DisplayDriver Lock");
_buffer_depth=0;
_buffer_width=0;
_buffer_height=0;
_buffer_mode=-1;
_is_cursor_hidden=false;
_is_cursor_obscured=false;
_cursor=NULL;
}
/*!
\brief Deletes the locking semaphore
Subclasses should use the destructor mostly for freeing allocated heap space.
*/
DisplayDriver::~DisplayDriver(void)
{
delete_sem(_lock_sem);
}
/*!
\brief Initializes the driver object.
\return true if successful, false if not
Initialize sets up the driver for display, including the initial clearing
of the screen. If things do not go as they should, false should be returned.
*/
bool DisplayDriver::Initialize(void)
{
return false;
}
/*!
\brief Shuts down the driver's video subsystem
Any work done by Initialize() should be undone here. Note that Shutdown() is
called even if Initialize() was unsuccessful.
*/
void DisplayDriver::Shutdown(void)
{
}
/*!
\brief Called for all BView::CopyBits calls
\param Source rectangle.
\param Destination rectangle.
Bounds checking must be done in this call. If the destination is not the same size
as the source, the source should be scaled to fit.
*/
void DisplayDriver::CopyBits(BRect src, BRect dest)
{
}
/*!
\brief Called for all BView::DrawBitmap calls
\param Bitmap to be drawn. It will always be non-NULL and valid. The color
space is not guaranteed to match.
\param Source rectangle
\param Destination rectangle. Source will be scaled to fit if not the same size.
\param Data structure containing any other data necessary for the call. Always non-NULL.
Bounds checking must be done in this call.
*/
void DisplayDriver::DrawBitmap(ServerBitmap *bmp, BRect src, BRect dest, LayerData *d)
{
}
/*!
\brief Utilizes the font engine to draw a string to the frame buffer
\param String to be drawn. Always non-NULL.
\param Number of characters in the string to draw. Always greater than 0. If greater
than the number of characters in the string, draw the entire string.
\param Point at which the baseline starts. Characters are to be drawn 1 pixel above
this for backwards compatibility. While the point itself is guaranteed to be inside
the frame buffers coordinate range, the clipping of each individual glyph must be
performed by the driver itself.
\param Data structure containing any other data necessary for the call. Always non-NULL.
*/
void DisplayDriver::DrawString(const char *string, int32 length, BPoint pt, LayerData *d, escapement_delta *delta=NULL)
{
}
/*!
\brief Called for all BView::FillArc calls
\param Rectangle enclosing the entire arc
\param Starting angle for the arc in degrees
\param Span of the arc in degrees. Ending angle = angle+span.
\param Data structure containing any other data necessary for the call. Always non-NULL.
\param 8-byte array containing the pattern to use. Always non-NULL.
Bounds checking must be done in this call because only part of the arc may end up
being clipped.
*/
void DisplayDriver::FillArc(BRect r, float angle, float span, LayerData *d, int8 *pat)
{
}
/*!
\brief Called for all BView::FillBezier calls.
\param 4-element array of BPoints in the order of start, end, and then the two control
points.
\param Data structure containing any other data necessary for the call. Always non-NULL.
\param 8-byte array containing the pattern to use. Always non-NULL.
Bounds checking must be done in this call.
*/
void DisplayDriver::FillBezier(BPoint *pts, LayerData *d, int8 *pat)
{
}
/*!
\brief Called for all BView::FillEllipse calls
\param BRect enclosing the ellipse to be drawn.
\param Data structure containing any other data necessary for the call. Always non-NULL.
\param 8-byte array containing the pattern to use. Always non-NULL.
Bounds checking must be done in this call because only part of the ellipse may end up
being clipped.
*/
void DisplayDriver::FillEllipse(BRect r, LayerData *d, int8 *pat)
{
}
/*!
\brief Called for all BView::FillPolygon calls
\param Array of BPoints defining the polygon.
\param Number of points in the BPoint array.
\param Rectangle which contains the polygon
\param Data structure containing any other data necessary for the call. Always non-NULL.
\param 8-byte array containing the pattern to use. Always non-NULL.
The points in the array are not guaranteed to be within the framebuffer's
coordinate range.
*/
void DisplayDriver::FillPolygon(BPoint *ptlist, int32 numpts, BRect rect, LayerData *d, int8 *pat)
{
}
/*!
\brief Called for all BView::FillRect calls
\param BRect to be filled. Guaranteed to be in the frame buffer's coordinate space
\param Data structure containing any other data necessary for the call. Always non-NULL.
\param 8-byte array containing the pattern to use. Always non-NULL.
*/
void DisplayDriver::FillRect(BRect r, LayerData *d, int8 *pat)
{
}
/*!
\brief Called for all BView::FillRoundRect calls
\param X radius of the corner arcs
\param Y radius of the corner arcs
\param Data structure containing any other data necessary for the call. Always non-NULL.
\param 8-byte array containing the pattern to use. Always non-NULL.
Bounds checking must be done in this call because only part of the roundrect may end
up being clipped.
*/
void DisplayDriver::FillRoundRect(BRect r, float xrad, float yrad, LayerData *d, int8 *pat)
{
}
//void DisplayDriver::FillShape(SShape *sh, LayerData *d, int8 *pat)
//{
//}
/*!
\brief Called for all BView::FillTriangle calls
\param Array of 3 BPoints. Always non-NULL.
\param BRect enclosing the triangle. While it will definitely enclose the triangle,
it may not be within the frame buffer's bounds.
\param Data structure containing any other data necessary for the call. Always non-NULL.
\param 8-byte array containing the pattern to use. Always non-NULL.
Bounds checking must be done in this call because only part of the triangle may end
up being clipped.
*/
void DisplayDriver::FillTriangle(BPoint *pts, BRect r, LayerData *d, int8 *pat)
{
}
/*!
\brief Hides the cursor.
Hide calls are not nestable, unlike that of the BApplication class. Subclasses should
call _SetCursorHidden(true) somewhere within this function to ensure that data is
maintained accurately.
*/
void DisplayDriver::HideCursor(void)
{
_SetCursorHidden(true);
}
/*!
\brief Returns whether the cursor is visible or not.
\return true if hidden or obscured, false if not.
*/
bool DisplayDriver::IsCursorHidden(void)
{
_Lock();
bool value=(_is_cursor_hidden || _is_cursor_obscured);
_Unlock();
return value;
}
/*!
\brief Moves the cursor to the given point.
The coordinates passed to MoveCursorTo are guaranteed to be within the frame buffer's
range, but the cursor data itself will need to be clipped. A check to see if the
cursor is obscured should be made and if so, a call to _SetCursorObscured(false)
should be made the cursor in addition to displaying at the passed coordinates.
*/
void DisplayDriver::MoveCursorTo(float x, float y)
{
}
/*!
\brief Inverts the colors in the rectangle.
\param Rectangle of the area to be inverted. Guaranteed to be within bounds.
*/
void DisplayDriver::InvertRect(BRect r)
{
}
/*!
\brief Shows the cursor.
Show calls are not nestable, unlike that of the BApplication class. Subclasses should
call _SetCursorHidden(false) somewhere within this function to ensure that data is
maintained accurately.
*/
void DisplayDriver::ShowCursor(void)
{
_SetCursorHidden(false);
}
/*!
\brief Obscures the cursor.
Obscure calls are not nestable. Subclasses should call _SetCursorObscured(true)
somewhere within this function to ensure that data is maintained accurately. When the
next call to MoveCursorTo() is made, the cursor will be shown again.
*/
void DisplayDriver::ObscureCursor(void)
{
_SetCursorObscured(true);
}
/*!
\brief Changes the cursor.
\param The new cursor. Guaranteed to be non-NULL.
The driver does not take ownership of the given cursor. Subclasses should make
a copy of the cursor passed to it. The default version of this function hides the
cursory, replaces it, and shows the cursor if previously visible.
*/
void DisplayDriver::SetCursor(ServerCursor *cursor)
{
_Lock();
bool hidden=_is_cursor_hidden;
bool obscured=_is_cursor_obscured;
if(_cursor)
delete _cursor;
_cursor=new ServerCursor(cursor);
if(!hidden && !obscured)
ShowCursor();
_Unlock();
}
void DisplayDriver::StrokeArc(BRect r, float angle, float span, LayerData *d, int8 *pat)
{
}
void DisplayDriver::StrokeBezier(BPoint *pts, LayerData *d, int8 *pat)
{
}
void DisplayDriver::StrokeEllipse(BRect r, LayerData *d, int8 *pat)
{
}
void DisplayDriver::StrokeLine(BPoint start, BPoint end, LayerData *d, int8 *pat)
{
}
void DisplayDriver::StrokePolygon(BPoint *ptlist, int32 numpts, BRect rect, LayerData *d, int8 *pat, bool is_closed=true)
{
}
void DisplayDriver::StrokeRect(BRect r, LayerData *d, int8 *pat)
{
}
void DisplayDriver::StrokeRoundRect(BRect r, float xrad, float yrad, LayerData *d, int8 *pat)
{
}
//void DisplayDriver::StrokeShape(SShape *sh, LayerData *d, int8 *pat)
//{
//}
void DisplayDriver::StrokeTriangle(BPoint *pts, BRect r, LayerData *d, int8 *pat)
{
}
void DisplayDriver::StrokeLineArray(BPoint *pts, int32 numlines, RGBColor *colors, LayerData *d)
{
}
void DisplayDriver::SetMode(int32 mode)
{
}
bool DisplayDriver::DumpToFile(const char *path)
{
return false;
}
float DisplayDriver::StringWidth(const char *string, int32 length, LayerData *d)
{
return 0.0;
}
float DisplayDriver::StringHeight(const char *string, int32 length, LayerData *d)
{
return 0.0;
}
void DisplayDriver::GetBoundingBoxes(const char *string, int32 count, font_metric_mode mode, escapement_delta *delta, BRect *rectarray)
{
}
void DisplayDriver::GetEscapements(const char *string, int32 charcount, escapement_delta *delta, escapement_delta *escapements, escapement_delta *offsets)
{
}
void DisplayDriver::GetEdges(const char *string, int32 charcount, edge_info *edgearray)
{
}
void DisplayDriver::GetHasGlyphs(const char *string, int32 charcount, bool *hasarray)
{
}
void DisplayDriver::GetTruncatedStrings( const char **instrings, int32 stringcount, uint32 mode, float maxwidth, char **outstrings)
{
}
uint8 DisplayDriver::GetDepth(void)
{
return _buffer_depth;
}
uint16 DisplayDriver::GetHeight(void)
{
return _buffer_height;
}
uint16 DisplayDriver::GetWidth(void)
{
return _buffer_width;
}
int32 DisplayDriver::GetMode(void)
{
return _buffer_mode;
}
// Protected Internal Functions
bool DisplayDriver::_Lock(bigtime_t timeout)
{
if(acquire_sem_etc(_lock_sem,1,B_RELATIVE_TIMEOUT,timeout)!=B_NO_ERROR)
return false;
return true;
}
void DisplayDriver::_Unlock(void)
{
release_sem(_lock_sem);
}
void DisplayDriver::_SetDepth(uint8 d)
{
_buffer_depth=d;
}
void DisplayDriver::_SetHeight(uint16 h)
{
_buffer_height=h;
}
void DisplayDriver::_SetWidth(uint16 w)
{
_buffer_width=w;
}
void DisplayDriver::_SetMode(int32 m)
{
_buffer_mode=m;
}
void DisplayDriver::_SetCursorHidden(bool state)
{
_is_cursor_hidden=state;
}
void DisplayDriver::_SetCursorObscured(bool state)
{
_is_cursor_obscured=state;
}
bool DisplayDriver::_IsCursorObscured(bool state)
{
return _is_cursor_obscured;
}
ServerCursor *DisplayDriver::_GetCursor(void)
{
return _cursor;
}

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src/servers/app/server/DisplayDriver.h Normal file
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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: DisplayDriver.h
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Description: Mostly abstract class which handles all graphics output
// for the server
//
//------------------------------------------------------------------------------
#ifndef _DISPLAY_DRIVER_H_
#define _DISPLAY_DRIVER_H_
#include <GraphicsCard.h>
#include <SupportDefs.h>
#include <OS.h>
#include <View.h>
#include <Font.h>
#include <Rect.h>
#include "RGBColor.h"
class ServerCursor;
class ServerBitmap;
class LayerData;
#ifndef ROUND
#define ROUND(a) ( (a-long(a))>=.5)?(long(a)+1):(long(a))
#endif
/*!
\brief Data structure for passing cursor information to hardware drivers.
*/
typedef struct
{
uchar *xormask, *andmask;
int32 width, height;
int32 hotx, hoty;
} cursor_data;
#ifndef HOOK_DEFINE_CURSOR
#define HOOK_DEFINE_CURSOR 0
#define HOOK_MOVE_CURSOR 1
#define HOOK_SHOW_CURSOR 2
#define HOOK_DRAW_LINE_8BIT 3
#define HOOK_DRAW_LINE_16BIT 12
#define HOOK_DRAW_LINE_32BIT 4
#define HOOK_DRAW_RECT_8BIT 5
#define HOOK_DRAW_RECT_16BIT 13
#define HOOK_DRAW_RECT_32BIT 6
#define HOOK_BLIT 7
#define HOOK_DRAW_ARRAY_8BIT 8
#define HOOK_DRAW_ARRAY_16BIT 14 // Not implemented in current R5 drivers
#define HOOK_DRAW_ARRAY_32BIT 9
#define HOOK_SYNC 10
#define HOOK_INVERT_RECT 11
#endif
/*!
\class DisplayDriver DisplayDriver.h
\brief Mostly abstract class which handles all graphics output for the server.
The DisplayDriver is called in order to handle all messiness associated with
a particular rendering context, such as the screen, and the methods to
handle organizing information related to it along with writing to the context
itself.
While all virtual functions are technically optional, the default versions
do very little, so implementing them all more or less required.
*/
class DisplayDriver
{
public:
DisplayDriver(void);
virtual ~DisplayDriver(void);
virtual bool Initialize(void);
virtual void Shutdown(void);
virtual void CopyBits(BRect src, BRect dest);
virtual void DrawBitmap(ServerBitmap *bmp, BRect src, BRect dest, LayerData *d);
virtual void DrawString(const char *string, int32 length, BPoint pt, LayerData *d, escapement_delta *delta=NULL);
virtual void FillArc(BRect r, float angle, float span, LayerData *d, int8 *pat);
virtual void FillBezier(BPoint *pts, LayerData *d, int8 *pat);
virtual void FillEllipse(BRect r, LayerData *d, int8 *pat);
virtual void FillPolygon(BPoint *ptlist, int32 numpts, BRect rect, LayerData *d, int8 *pat);
virtual void FillRect(BRect r, LayerData *d, int8 *pat);
virtual void FillRoundRect(BRect r, float xrad, float yrad, LayerData *d, int8 *pat);
// virtual void FillShape(SShape *sh, LayerData *d, int8 *pat);
virtual void FillTriangle(BPoint *pts, BRect r, LayerData *d, int8 *pat);
virtual void HideCursor(void);
virtual bool IsCursorHidden(void);
virtual void MoveCursorTo(float x, float y);
virtual void InvertRect(BRect r);
virtual void ShowCursor(void);
virtual void ObscureCursor(void);
virtual void SetCursor(ServerCursor *cursor);
virtual void StrokeArc(BRect r, float angle, float span, LayerData *d, int8 *pat);
virtual void StrokeBezier(BPoint *pts, LayerData *d, int8 *pat);
virtual void StrokeEllipse(BRect r, LayerData *d, int8 *pat);
virtual void StrokeLine(BPoint start, BPoint end, LayerData *d, int8 *pat);
virtual void StrokePolygon(BPoint *ptlist, int32 numpts, BRect rect, LayerData *d, int8 *pat, bool is_closed=true);
virtual void StrokeRect(BRect r, LayerData *d, int8 *pat);
virtual void StrokeRoundRect(BRect r, float xrad, float yrad, LayerData *d, int8 *pat);
// virtual void StrokeShape(SShape *sh, LayerData *d, int8 *pat);
virtual void StrokeTriangle(BPoint *pts, BRect r, LayerData *d, int8 *pat);
virtual void StrokeLineArray(BPoint *pts, int32 numlines, RGBColor *colors, LayerData *d);
virtual void SetMode(int32 mode);
virtual bool DumpToFile(const char *path);
virtual float StringWidth(const char *string, int32 length, LayerData *d);
virtual float StringHeight(const char *string, int32 length, LayerData *d);
virtual void GetBoundingBoxes(const char *string, int32 count, font_metric_mode mode, escapement_delta *delta, BRect *rectarray);
virtual void GetEscapements(const char *string, int32 charcount, escapement_delta *delta, escapement_delta *escapements, escapement_delta *offsets);
virtual void GetEdges(const char *string, int32 charcount, edge_info *edgearray);
virtual void GetHasGlyphs(const char *string, int32 charcount, bool *hasarray);
virtual void GetTruncatedStrings( const char **instrings, int32 stringcount, uint32 mode, float maxwidth, char **outstrings);
uint8 GetDepth(void);
uint16 GetHeight(void);
uint16 GetWidth(void);
int32 GetMode(void);
protected:
bool _Lock(bigtime_t timeout=B_INFINITE_TIMEOUT);
void _Unlock(void);
void _SetDepth(uint8 d);
void _SetHeight(uint16 h);
void _SetWidth(uint16 w);
void _SetMode(int32 m);
void _SetCursorHidden(bool state);
void _SetCursorObscured(bool state);
bool _IsCursorObscured(bool state);
ServerCursor *_GetCursor(void);
private:
sem_id _lock_sem;
uint8 _buffer_depth;
uint16 _buffer_width;
uint16 _buffer_height;
int32 _buffer_mode;
bool _is_cursor_hidden;
bool _is_cursor_obscured;
ServerCursor *_cursor;
};
#endif

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src/servers/app/server/ServerBitmap.cpp Normal file
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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: ServerBitmap.cpp
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Description: Bitmap class used by the server
//
//------------------------------------------------------------------------------
#include "ServerBitmap.h"
/*!
\brief Constructor called by the BitmapManager (only).
\param Size of the bitmap.
\param Color space of the bitmap
\param Various bitmap flags to tweak the bitmap as defined in Bitmap.h
\param Number of bytes in each row. -1 implies the default value. Any value less
than the the default will less than the default will be overridden, but any value
greater than the default will result in the number of bytes specified.
\param Screen assigned to the bitmap.
*/
ServerBitmap::ServerBitmap(BRect rect,color_space space, int32 flags,
int32 bytesperline=-1, screen_id screen=B_MAIN_SCREEN_ID)
{
_initialized=false;
_area=B_ERROR;
_width=rect.IntegerWidth()+1;
_height=rect.IntegerHeight()+1;
_space=space;
_area=B_ERROR;
_buffer=NULL;
_HandleSpace(space, bytesperline);
}
//! Copy constructor does not copy the buffer.
ServerBitmap::ServerBitmap(const ServerBitmap *bmp)
{
_initialized=false;
_area=B_ERROR;
_buffer=NULL;
if(bmp)
{
_width=bmp->_width;
_height=bmp->_height;
_bytesperrow=bmp->_bytesperrow;
_space=bmp->_space;
_flags=bmp->_flags;
_bpp=bmp->_bpp;
}
else
{
_width=0;
_height=0;
_bytesperrow=0;
_space=B_NO_COLOR_SPACE;
_flags=0;
_bpp=0;
}
}
/*!
\brief Empty. Defined for subclasses.
*/
ServerBitmap::~ServerBitmap(void)
{
}
/*!
\brief Gets the number of bytes occupied by the bitmap, including padding bytes.
\return The number of bytes occupied by the bitmap, including padding.
*/
uint32 ServerBitmap::BitsLength(void)
{
return (uint32)(_bytesperrow*_height);
}
/*!
\brief Internal function used to translate color space values to appropriate internal
values.
\param Color space for the bitmap.
\param Number of bytes per row.
*/
void ServerBitmap::_HandleSpace(color_space space, int32 bytesperline=-1)
{
// Big convoluted mess just to handle every color space and dword align
// the buffer
switch(space)
{
// Buffer is dword-aligned, so nothing need be done
// aside from allocate the memory
case B_RGB32:
case B_RGBA32:
case B_RGB32_BIG:
case B_RGBA32_BIG:
case B_UVL32:
case B_UVLA32:
case B_LAB32:
case B_LABA32:
case B_HSI32:
case B_HSIA32:
case B_HSV32:
case B_HSVA32:
case B_HLS32:
case B_HLSA32:
case B_CMY32:
case B_CMYA32:
case B_CMYK32:
// 24-bit = 32-bit with extra 8 bits ignored
case B_RGB24_BIG:
case B_RGB24:
case B_LAB24:
case B_UVL24:
case B_HSI24:
case B_HSV24:
case B_HLS24:
case B_CMY24:
{
if(bytesperline<(_width*4))
_bytesperrow=_width*4;
else
_bytesperrow=bytesperline;
_bpp=32;
break;
}
// Calculate size and dword-align
// 1-bit
case B_GRAY1:
{
int32 numbytes=_width>>3;
if((_width % 8) != 0)
numbytes++;
if(bytesperline<numbytes)
{
for(int8 i=0;i<4;i++)
{
if( (numbytes+i)%4==0)
{
_bytesperrow=numbytes+i;
break;
}
}
}
else
_bytesperrow=bytesperline;
_bpp=1;
}
// 8-bit
case B_CMAP8:
case B_GRAY8:
case B_YUV411:
case B_YUV420:
case B_YCbCr422:
case B_YCbCr411:
case B_YCbCr420:
case B_YUV422:
{
if(bytesperline<_width)
{
for(int8 i=0;i<4;i++)
{
if( (_width+i)%4==0)
{
_bytesperrow=_width+i;
break;
}
}
}
else
_bytesperrow=bytesperline;
_bpp=8;
break;
}
// 16-bit
case B_YUV9:
case B_YUV12:
case B_RGB15:
case B_RGBA15:
case B_RGB16:
case B_RGB16_BIG:
case B_RGB15_BIG:
case B_RGBA15_BIG:
case B_YCbCr444:
case B_YUV444:
{
if(bytesperline<_width*2)
{
if( (_width*2) % 4 !=0)
_bytesperrow=(_width+1)*2;
else
_bytesperrow=_width*2;
}
else
_bytesperrow=bytesperline;
_bpp=16;
break;
}
case B_NO_COLOR_SPACE:
_bpp=0;
break;
}
}

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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: ServerBitmap.h
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Description: Bitmap class used inside the server
//
//------------------------------------------------------------------------------
#ifndef _SERVER_BITMAP_H_
#define _SERVER_BITMAP_H_
#include <GraphicsDefs.h>
#include <Rect.h>
#include <OS.h>
/*!
\class ServerBitmap ServerBitmap.h
\brief Bitmap class used inside the server.
This class is not directly allocated or freed. Instead, it is
managed by the BitmapManager class. It is also the base class for
all cursors. Every BBitmap has a shadow ServerBitmap object.
*/
class ServerBitmap
{
public:
ServerBitmap(BRect rect,color_space space, int32 flags,
int32 bytesperline=-1, screen_id screen=B_MAIN_SCREEN_ID);
ServerBitmap(const ServerBitmap *bmp);
~ServerBitmap(void);
/*!
\brief Returns the area in which the buffer resides
\return
- \c B_ERROR if the buffer is not allocated in an area
- area_id for the buffer
*/
area_id Area(void) { return _area; }
//! Returns the bitmap's buffer
uint8 *Bits(void) { return _buffer; }
uint32 BitsLength(void);
//! Returns the size of the bitmap
BRect Bounds() { return BRect(0,0,_width-1,_height-1); };
//! Returns the number of bytes in each row, including padding
int32 BytesPerRow(void) { return _bytesperrow; };
//! Returns the pixel color depth
uint8 BitsPerPixel(void) { return _bpp; }
//! Returns the color space of the bitmap
color_space ColorSpace(void) { return _space; }
//! Returns the width of the bitmap
int32 Width(void) const { return _width; }
//! Returns the height of the bitmap
int32 Height(void) const { return _height; }
//! Returns whether the bitmap is valid
bool InitCheck(void) { return _initialized; }
protected:
//! Internal function used by the BitmapManager.
void _SetArea(area_id ID) { _area=ID; }
//! Internal function used by the BitmapManager.
void _SetBuffer(void *ptr) { _buffer=(uint8*)ptr; }
/*!
\brief Internal function used by subclasses
Subclasses should call this so the buffer can automagically
be allocated on the heap.
*/
void _AllocateBuffer(void) { if(_buffer!=NULL) delete _buffer; _buffer=new uint8[BitsLength()]; }
/*!
\brief Internal function used by subclasses
Subclasses should call this to free the internal buffer.
*/
void _FreeBuffer(void) { if(_buffer!=NULL) { delete _buffer; _buffer=NULL; } }
void _HandleSpace(color_space space, int32 bytesperline=-1);
bool _initialized;
area_id _area;
uint8 *_buffer;
int32 _width,_height;
int32 _bytesperrow;
color_space _space;
int32 _flags;
int _bpp;
};
#endif

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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: ServerCursor.cpp
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Description: Glorified ServerBitmap used for cursor work.
//
//------------------------------------------------------------------------------
#include "ServerCursor.h"
ServerCursor::ServerCursor(BRect r, color_space cspace, int32 flags, BPoint hotspot, int32 bytesperrow=-1, screen_id screen=B_MAIN_SCREEN_ID)
: ServerBitmap(r,cspace,flags,bytesperrow,screen)
{
_hotspot=hotspot;
_hotspot.ConstrainTo(Bounds());
_AllocateBuffer();
}
ServerCursor::ServerCursor(int8 *data)
: ServerBitmap(BRect(0,0,15,15),B_RGBA32,0,64)
{
// 68-byte array used in R5 for holding cursors.
// This API has serious problems and should be deprecated(but supported) in R2
// Now that we have all the setup, we're going to map (for now) the cursor
// to RGBA32. Eventually, there will be support for 16 and 8-bit depths
if(data)
{
_initialized=true;
uint32 black=0xFF000000,
white=0xFFFFFFFF,
*bmppos;
uint16 *cursorpos, *maskpos,cursorflip, maskflip,
cursorval, maskval,powval;
uint8 i,j;
cursorpos=(uint16*)(data+4);
maskpos=(uint16*)(data+36);
_AllocateBuffer();
// for each row in the cursor data
for(j=0;j<16;j++)
{
bmppos=(uint32*)(_buffer+ (j*64) );
// On intel, our bytes end up swapped, so we must swap them back
cursorflip=(cursorpos[j] & 0xFF) << 8;
cursorflip |= (cursorpos[j] & 0xFF00) >> 8;
maskflip=(maskpos[j] & 0xFF) << 8;
maskflip |= (maskpos[j] & 0xFF00) >> 8;
// for each column in each row of cursor data
for(i=0;i<16;i++)
{
// Get the values and dump them to the bitmap
powval=((15-i) * (15-i));
cursorval=cursorflip & powval;
maskval=maskflip & powval;
bmppos[i]=((cursorval!=0)?black:white) & ((maskval>0)?0xFFFFFFFF:0x00FFFFFF);
}
}
}
else
{
_width=0;
_height=0;
_bytesperrow=0;
_space=B_NO_COLOR_SPACE;
}
}
ServerCursor::ServerCursor(const ServerCursor *cursor)
: ServerBitmap(cursor)
{
_AllocateBuffer();
_initialized=true;
if(cursor)
{
if(cursor->_buffer)
memcpy(_buffer, cursor->_buffer, BitsLength());
_hotspot=cursor->_hotspot;
}
}
ServerCursor::~ServerCursor(void)
{
_FreeBuffer();
}
void ServerCursor::SetHotSpot(BPoint pt)
{
_hotspot=pt;
_hotspot.ConstrainTo(Bounds());
}

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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: ServerCursor.h
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Description: Glorified ServerBitmap used for cursor work.
//
//------------------------------------------------------------------------------
#ifndef SERVERCURSOR_H_
#define SERVERCURSOR_H_
#include <Point.h>
#include "ServerBitmap.h"
class ServerCursor : public ServerBitmap
{
public:
ServerCursor(BRect r, color_space cspace, int32 flags, BPoint hotspot, int32 bytesperrow=-1, screen_id screen=B_MAIN_SCREEN_ID);
ServerCursor(int8 *data);
ServerCursor(const ServerCursor *cursor);
~ServerCursor(void);
//! Returns the cursor's hot spot
BPoint GetHotSpot(void);
void SetHotSpot(BPoint pt);
private:
BPoint _hotspot;
};
#endif