pandory500/SDL-mirror
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Replaced window backbuffer with BBitmap

Browse source
This commit is contained in:
Nathan Heisey 2011-08-03 06:22:33 +00:00
parent 2dda407120
commit 3c7c721663
2 changed files with 32 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/video/bwindow/SDL_BWin.h
View file

@ -81,7 +81,7 @@ class SDL_BWin:public BDirectWindow
_buffer_created = _buffer_dirty = false;
_trash_window_buffer = false;
_buffer_locker = new BLocker();
_window_buffer = NULL;
_bitmap = NULL;
_draw_thread_id = spawn_thread(BE_DrawThread, "drawing_thread",
B_NORMAL_PRIORITY, (void*) this);
@ -394,27 +394,29 @@ class SDL_BWin:public BDirectWindow
uint32 GetRowBytes() { return _row_bytes; }
int32 GetFbX() { return _bounds.left; }
int32 GetFbY() { return _bounds.top; }
int32 GetFbHeight() { return _bounds.bottom - _bounds.top + 1; }
int32 GetFbWidth() { return _bounds.right - _bounds.left + 1; }
// int32 GetFbHeight() { return _bounds.bottom - _bounds.top + 1; }
// int32 GetFbWidth() { return _bounds.right - _bounds.left + 1; }
bool ConnectionEnabled() { return !_connection_disabled; }
bool Connected() { return _connected; }
clipping_rect *GetClips() { return _clips; }
int32 GetNumClips() { return _num_clips; }
uint8* GetBufferPx() { return _bits; }
int32 GetBytesPerPx() { return _bytes_per_px; }
uint8* GetWindowFramebuffer() { return _window_buffer; }
// uint8* GetWindowFramebuffer() { return _window_buffer; }
bool CanTrashWindowBuffer() { return _trash_window_buffer; }
bool BufferExists() { return _buffer_created; }
bool BufferIsDirty() { return _buffer_dirty; }
BBitmap *GetBitmap() { return _bitmap; }
/* Setter methods */
void SetID(int32 id) { _id = id; }
void SetBufferExists(bool bufferExists) { _buffer_created = bufferExists; }
void SetWindowFramebuffer(uint8* fb) { _window_buffer = fb; }
// void SetWindowFramebuffer(uint8* fb) { _window_buffer = fb; }
void LockBuffer() { _buffer_locker->Lock(); }
void UnlockBuffer() { _buffer_locker->Unlock(); }
void SetBufferDirty(bool bufferDirty) { _buffer_dirty = bufferDirty; }
void SetTrashBuffer(bool trash) { _trash_window_buffer = trash; }
void SetBitmap(BBitmap *bitmap) { _bitmap = bitmap; }
private:
@ -588,9 +590,11 @@ private:
clipping_rect *_clips;
int32 _num_clips;
int32 _bytes_per_px;
uint8 *_window_buffer; /* A copy of the window buffer */
// uint8 *_window_buffer; /* A copy of the window buffer */
bool _trash_window_buffer;
thread_id _draw_thread_id;
BBitmap *_bitmap;
};
#endif

39
src/video/bwindow/SDL_bframebuffer.cc
View file

@ -60,17 +60,21 @@ int BE_CreateWindowFramebuffer(_THIS, SDL_Window * window,
int32 bpp = ColorSpaceToBitsPerPixel(bmode.space);
*format = BPPToSDLPxFormat(bpp);
/* pitch = width of screen, in bytes */
*pitch = bwin->GetFbWidth() * bwin->GetBytesPerPx();
/* Create a copy of the pixel buffer if it doesn't recycle */
*pixels = bwin->GetWindowFramebuffer();
if( (*pixels) != NULL ) {
SDL_free(*pixels);
/* Create the new bitmap object */
BBitmap *bitmap = bwin->GetBitmap();
if(bitmap) {
delete bitmap;
}
*pixels = SDL_calloc((*pitch) * bwin->GetFbHeight() *
bwin->GetBytesPerPx(), sizeof(uint8));
bwin->SetWindowFramebuffer((uint8*)(*pixels));
bitmap = new BBitmap(bwin->Bounds(), (color_space)bmode.space,
false, /* Views not accepted */
true); /* Contiguous memory required */
bwin->SetBitmap(bitmap);
/* Set the pixel pointer */
*pixels = bitmap->Bits();
/* pitch = width of window, in bytes */
*pitch = bitmap->BytesPerRow();
bwin->SetBufferExists(true);
bwin->SetTrashBuffer(false);
@ -106,13 +110,13 @@ int32 BE_DrawThread(void *data) {
while(bwin->ConnectionEnabled()) {
if( bwin->Connected() && bwin->BufferExists() && bwin->BufferIsDirty() ) {
bwin->LockBuffer();
int32 windowPitch = window->surface->pitch;
BBitmap *bitmap = bwin->GetBitmap();
int32 windowPitch = bitmap->BytesPerRow();
int32 bufferPitch = bwin->GetRowBytes();
uint8 *windowpx;
uint8 *bufferpx;
int32 BPP = bwin->GetBytesPerPx();
uint8 *windowBaseAddress = (uint8*)window->surface->pixels;
int32 windowSub = bwin->GetFbX() * BPP +
bwin->GetFbY() * windowPitch;
clipping_rect *clips = bwin->GetClips();
@ -128,8 +132,9 @@ int32 BE_DrawThread(void *data) {
int32 height = clips[i].bottom - clips[i].top + 1;
bufferpx = bwin->GetBufferPx() +
clips[i].top * bufferPitch + clips[i].left * BPP;
windowpx = windowBaseAddress +
clips[i].top * windowPitch + clips[i].left * BPP - windowSub;
windowpx = (uint8*)bitmap->Bits(); +
clips[i].top * windowPitch + clips[i].left * BPP -
windowSub;
/* Copy each row of pixels from the window buffer into the frame
buffer */
@ -160,9 +165,9 @@ void BE_DestroyWindowFramebuffer(_THIS, SDL_Window * window) {
bwin->LockBuffer();
/* Free and clear the window buffer */
uint8* winBuffer = bwin->GetWindowFramebuffer();
SDL_free(winBuffer);
bwin->SetWindowFramebuffer(NULL);
BBitmap *bitmap = bwin->GetBitmap();
delete bitmap;
bwin->SetBitmap(NULL);
bwin->SetBufferExists(false);
bwin->UnlockBuffer();
}