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Gfx: Fix rendering issues in some cases

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It seems that Direct2D does not expect the underlying pixel data of the render target to change outside of the target draw commands while the render target exists. As a result, Direct2D may in some cases overwrite changes to the pixel data. This change changes the render target to be (re)created for each batch of Direct2D drawing operations as a temporary solution. As a side effect, a DIB section is now used as the render target bitmap.
This commit is contained in:
Birunthan Mohanathas
2013-03-26 21:29:05 +02:00
parent 7f51273950
commit 5f03d7b235
8 changed files with 436 additions and 120 deletions
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14
Common/Gfx/CanvasD2D.h
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@ -21,6 +21,7 @@
#include "Canvas.h"
#include "TextFormatD2D.h"
#include "WICBitmapDIB.h"
#include <string>
#include <GdiPlus.h>
#include <d2d1.h>
@ -75,24 +76,17 @@ private:
void DiscardDeviceResources();
void BeginTargetDraw();
bool BeginTargetDraw();
void EndTargetDraw();
ID2D1RenderTarget* m_Target;
ID2D1GdiInteropRenderTarget* m_InteropTarget;
IWICBitmap* m_Bitmap;
WICBitmapDIB m_Bitmap;
// GDI+ objects that share the pixel data of m_Bitmap.
Gdiplus::Graphics* m_GdipGraphics;
Gdiplus::Bitmap* m_GdipBitmap;
// If true, the BeginDraw() function of this class has been called and the matching EndDraw()
// has not been called yet.
bool m_BeginDrawCalled;
// If true, the BeginDraw() function of the render target has been called and the matching
// EndDraw() has not been called yet.
bool m_TargetBeginDrawCalled;
bool m_TextAntiAliasing;
static UINT c_Instances;
static ID2D1Factory* c_D2D;