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Added bitmap allocation code which talks to the app_server

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2896 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
DarkWyrm 2003-03-12 13:45:25 +00:00
parent 40f36b03c6
commit f4ccda5e46
1 changed files with 85 additions and 10 deletions
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95
src/kits/interface/Bitmap.cpp
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@ -21,6 +21,7 @@
//
// File Name: Bitmap.cpp
// Author: Ingo Weinhold (bonefish@users.sf.net)
// DarkWyrm <bpmagic@columbus.rr.com>
// Description: BBitmap objects represent off-screen windows that
// contain bitmap data.
//------------------------------------------------------------------------------
@ -35,6 +36,11 @@
#include <Locker.h>
#include <OS.h>
// Includes to be able to talk to the app_server
#include <Application.h>
#include <ServerProtocol.h>
#include <PortLink.h>
enum {
NOT_IMPLEMENTED = B_ERROR,
};
@ -2141,13 +2147,35 @@ void
BBitmap::InitObject(BRect bounds, color_space colorSpace, uint32 flags,
int32 bytesPerRow, screen_id screenID)
{
status_t error = B_OK;
PortLink::ReplyData replydata;
PortLink *link=new PortLink(be_app->fServerTo);
// clean up
if (fBasePtr) {
free(fBasePtr);
// free(fBasePtr);
fBasePtr = NULL;
// AS_DELETE_BITMAP:
// Attached Data:
// 1) int32 server token
// Reply Code: SERVER_TRUE if successful,
// SERVER_FALSE if the buffer was already deleted
// Reply Data:
// none
status_t freestat;
link->SetOpCode(AS_DELETE_BITMAP);
link->Attach(fServerToken);
error=link->FlushWithReply(&replydata);
if(replydata.code==SERVER_FALSE)
error=B_NO_MEMORY;
fBasePtr=NULL;
fArea=-1;
fServerToken=-1;
}
// check params
status_t error = B_OK;
if (!bounds.IsValid() || !is_supported(colorSpace))
error = B_BAD_VALUE;
if (error == B_OK) {
@ -2160,21 +2188,68 @@ BBitmap::InitObject(BRect bounds, color_space colorSpace, uint32 flags,
// allocate the bitmap buffer
if (error == B_OK) {
int32 size = bytesPerRow * (bounds.IntegerHeight() + 1);
fBasePtr = malloc(size);
if (fBasePtr) {
// fBasePtr = malloc(size);
// Ask the server (via our owning application) to create a bitmap.
// AS_CREATE_BITMAP:
// Attached Data:
// None
// Reply Code: SERVER_TRUE
// Reply Data:
// 1) int32 server token
// 2) area_id id of the area in which the bitmap data resides
// 3) int32 area pointer offset used to calculate fBasePtr
// alternatively, if something went wrong
// Reply Code: SERVER_FALSE
// Reply Data:
// None
link->SetOpCode(AS_CREATE_BITMAP);
error=link->FlushWithReply(&replydata);
// We shouldn't ever have to execute this block, but just in case...
if(error!=B_OK)
fBasePtr=NULL;
if(replydata.code==SERVER_TRUE)
{
int8 *bufferindex=replydata.buffer;
// Get token
fServerToken=*((int32*)bufferindex); bufferindex+=sizeof(int32);
// Get the area in which the data resides
fArea=clone_area("shared bitmap area",(void**)&fBasePtr,B_ANY_ADDRESS,
B_READ_AREA | B_WRITE_AREA,*((area_id*)bufferindex));
bufferindex+=sizeof(area_id);
// Jump to the location in the area
fBasePtr=(int8*)fBasePtr + *((int32*)bufferindex);
fSize = size;
fColorSpace = colorSpace;
fBounds = bounds;
fBytesPerRow = bytesPerRow;
fWindow = NULL;
fServerToken = -1;
fToken = -1;
fArea = -1;
fOrigArea = -1;
fFlags = flags;
} else
}
else
{
fServerToken = -1;
fArea = -1;
fFlags = flags;
error = B_NO_MEMORY;
}
fWindow = NULL;
fToken = -1;
fOrigArea = -1;
}
delete link;
fInitError = error;
}