gsdx: by default new will throw std::bad_alloc

So catch/use it and don't bother with GSDXErrorOOM

plugins/GSdx/GSDevice11.cpp

@@ -526,9 +526,6 @@ GSTexture* GSDevice11::CreateSurface(int type, int w, int h, bool msaa, int form
 	if(SUCCEEDED(hr))
 	{
 		t = new GSTexture11(texture);
-		if (t == NULL) {
-			throw GSDXErrorOOM();
-		}
 
 		switch(type)
 		{
@@ -540,6 +537,10 @@ GSTexture* GSDevice11::CreateSurface(int type, int w, int h, bool msaa, int form
 			break;
 		}
 	}
+	else
+	{
+		throw std::bad_alloc();
+	}
 
 	return t;
 }

plugins/GSdx/GSDevice9.cpp

@@ -718,17 +718,11 @@ GSTexture* GSDevice9::CreateSurface(int type, int w, int h, bool msaa, int forma
 	if(surface)
 	{
 		t = new GSTexture9(surface);
-		if (t == NULL) {
-			throw GSDXErrorOOM();
-		}
 	}
 
 	if(texture)
 	{
 		t = new GSTexture9(texture);
-		if (t == NULL) {
-			throw GSDXErrorOOM();
-		}
 	}
 
 	if(t)
@@ -743,6 +737,10 @@ GSTexture* GSDevice9::CreateSurface(int type, int w, int h, bool msaa, int forma
 			break;
 		}
 	}
+	else
+	{
+		throw std::bad_alloc();
+	}
 
 	return t;
 }

plugins/GSdx/GSDeviceOGL.cpp

@@ -229,11 +229,7 @@ GSTexture* GSDeviceOGL::CreateSurface(int type, int w, int h, bool msaa, int fmt
 	GL_PUSH("Create surface");
 
 	// A wrapper to call GSTextureOGL, with the different kind of parameter
-	GSTextureOGL* t = NULL;
-	t = new GSTextureOGL(type, w, h, fmt, m_fbo_read, m_mipmap > 1 || m_filter > 2);
-	if (t == NULL) {
-		throw GSDXErrorOOM();
-	}
+	GSTextureOGL* t = new GSTextureOGL(type, w, h, fmt, m_fbo_read, m_mipmap > 1 || m_filter > 2);
 
 	// NOTE: I'm not sure RenderTarget always need to be cleared. It could be costly for big upscale.
 	// FIXME: it will be more logical to do it in FetchSurface. This code is only called at first creation

plugins/GSdx/GSDeviceSW.cpp

@@ -50,7 +50,7 @@ bool GSDeviceSW::Reset(int w, int h)
 
 GSTexture* GSDeviceSW::CreateSurface(int type, int w, int h, bool msaa, int format)
 {
-	if(format != 0) return NULL; // there is only one format
+	ASSERT(format == 0);
 
 	return new GSTextureSW(type, w, h);
 }

plugins/GSdx/GSState.cpp

@@ -1590,7 +1590,7 @@ void GSState::FlushPrim()
 				Draw();
 			} catch (GSDXRecoverableError&) {
 				// could be an unsupported draw call
-			} catch (GSDXErrorOOM&) {
+			} catch (const std::bad_alloc& e) {
 				// Texture Out Of Memory
 				PurgePool();
 				fprintf(stderr, "GSDX OUT OF MEMORY\n");

plugins/GSdx/GSTextureCache.cpp

@@ -1110,7 +1110,6 @@ GSTextureCache::Source* GSTextureCache::CreateSource(const GIFRegTEX0& TEX0, con
 {
 	const GSLocalMemory::psm_t& psm = GSLocalMemory::m_psm[TEX0.PSM];
 	Source* src = new Source(m_renderer, TEX0, TEXA, m_temp);
-	if (src == NULL) throw GSDXErrorOOM();
 
 	int tw = 1 << TEX0.TW;
 	int th = 1 << TEX0.TH;
@@ -1431,11 +1430,7 @@ GSTextureCache::Source* GSTextureCache::CreateSource(const GIFRegTEX0& TEX0, con
 			src->m_texture = m_renderer->m_dev->CreateTexture(tw, th);
 	}
 
-	if(src->m_texture == NULL)
-	{
-		delete src;
-		throw GSDXErrorOOM();
-	}
+	ASSERT(src->m_texture);
 
 	if(psm.pal > 0)
 	{
@@ -1449,8 +1444,9 @@ GSTextureCache::Source* GSTextureCache::CreateSource(const GIFRegTEX0& TEX0, con
 
 GSTextureCache::Target* GSTextureCache::CreateTarget(const GIFRegTEX0& TEX0, int w, int h, int type)
 {
+	ASSERT(type == RenderTarget || type == DepthStencil);
+
 	Target* t = new Target(m_renderer, TEX0, m_temp, CanConvertDepth());
-	if (t == NULL) throw GSDXErrorOOM();
 
 	// FIXME: initial data should be unswizzled from local mem in Update() if dirty
 
@@ -1467,12 +1463,6 @@ GSTextureCache::Target* GSTextureCache::CreateTarget(const GIFRegTEX0& TEX0, int
 		t->m_texture = m_renderer->m_dev->CreateDepthStencil(w, h, true);
 	}
 
-	if(t->m_texture == NULL)
-	{
-		delete t;
-		throw GSDXErrorOOM();
-	}
-
 	m_dst[type].push_front(t);
 
 	return t;
@@ -1880,7 +1870,6 @@ void GSTextureCache::Target::Update()
 	TEXA.TA1 = 0x80;
 
 	GSTexture* t = m_renderer->m_dev->CreateTexture(w, h);
-	if (t == NULL) return;
 
 	const GSOffset* off = m_renderer->m_mem.GetOffset(m_TEX0.TBP0, m_TEX0.TBW, m_TEX0.PSM);
 

plugins/GSdx/GSTextureOGL.cpp

@@ -246,7 +246,7 @@ GSTextureOGL::GSTextureOGL(int type, int w, int h, int format, GLuint fbo_read,
 		fprintf(stderr, "Available VRAM is very low (%lld), a crash is expected ! Disable Larger framebuffer or reduce upscaling!\n", GLState::available_vram);
 		every_512++;
 		// Pull emergency break
-		throw GSDXErrorOOM();
+		throw std::bad_alloc();
 	}
 
 	// Only 32 bits input texture will be supported for mipmap

plugins/GSdx/GSdx.h

@@ -84,6 +84,5 @@ public:
 
 struct GSDXError {};
 struct GSDXRecoverableError : GSDXError {};
-struct GSDXErrorOOM : GSDXError {};
 
 extern GSdxApp theApp;