Cleanup.

src/bgfx.cpp

@@ -3359,7 +3359,7 @@ namespace bgfx
 		resolve = _resolve;
 	}
 
-	bool init(const Init& _init)
+	bool init(const Init& _userInit)
 	{
 		if (NULL != s_ctx)
 		{
@@ -3367,12 +3367,10 @@ namespace bgfx
 			return false;
 		}
 
-		if (1   > _init.limits.maxEncoders
-		||  128 < _init.limits.maxEncoders)
-		{
-			BX_TRACE("init.limits.maxEncoders must be between 1 and 128.");
-			return false;
-		}
+		Init init = _userInit;
+
+		init.limits.maxEncoders       = bx::clamp<uint16_t>(init.limits.maxEncoders, 1, 128);
+		init.limits.minResourceCbSize = bx::min<uint32_t>(init.limits.minResourceCbSize, BGFX_CONFIG_MIN_RESOURCE_COMMAND_BUFFER_SIZE);
 
 		struct ErrorState
 		{
@@ -3385,9 +3383,9 @@ namespace bgfx
 
 		ErrorState::Enum errorState = ErrorState::Default;
 
-		if (NULL != _init.allocator)
+		if (NULL != init.allocator)
 		{
-			g_allocator = _init.allocator;
+			g_allocator = init.allocator;
 		}
 		else
 		{
@@ -3396,9 +3394,9 @@ namespace bgfx
 				s_allocatorStub = BX_NEW(&allocator, AllocatorStub);
 		}
 
-		if (NULL != _init.callback)
+		if (NULL != init.callback)
 		{
-			g_callback = _init.callback;
+			g_callback = init.callback;
 		}
 		else
 		{
@@ -3408,12 +3406,12 @@ namespace bgfx
 
 		if (true
 		&&  !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN || BX_PLATFORM_PS4)
-		&&  RendererType::Noop != _init.type
-		&&  NULL == _init.platformData.ndt
-		&&  NULL == _init.platformData.nwh
-		&&  NULL == _init.platformData.context
-		&&  NULL == _init.platformData.backBuffer
-		&&  NULL == _init.platformData.backBufferDS
+		&&  RendererType::Noop != init.type
+		&&  NULL == init.platformData.ndt
+		&&  NULL == init.platformData.nwh
+		&&  NULL == init.platformData.context
+		&&  NULL == init.platformData.backBuffer
+		&&  NULL == init.platformData.backBufferDS
 		   )
 		{
 			BX_TRACE("bgfx platform data like window handle or backbuffer is not set, creating headless device.");
@@ -3440,13 +3438,13 @@ namespace bgfx
 		g_caps.limits.maxUniforms             = BGFX_CONFIG_MAX_UNIFORMS;
 		g_caps.limits.maxOcclusionQueries     = BGFX_CONFIG_MAX_OCCLUSION_QUERIES;
 		g_caps.limits.maxFBAttachments        = 1;
-		g_caps.limits.maxEncoders             = (0 != BGFX_CONFIG_MULTITHREADED) ? _init.limits.maxEncoders : 1;
-		g_caps.limits.minResourceCbSize       = _init.limits.minResourceCbSize;
-		g_caps.limits.transientVbSize         = _init.limits.transientVbSize;
-		g_caps.limits.transientIbSize         = _init.limits.transientIbSize;
+		g_caps.limits.maxEncoders             = (0 != BGFX_CONFIG_MULTITHREADED) ? init.limits.maxEncoders : 0;
+		g_caps.limits.minResourceCbSize       = init.limits.minResourceCbSize;
+		g_caps.limits.transientVbSize         = init.limits.transientVbSize;
+		g_caps.limits.transientIbSize         = init.limits.transientIbSize;
 
-		g_caps.vendorId = _init.vendorId;
-		g_caps.deviceId = _init.deviceId;
+		g_caps.vendorId = init.vendorId;
+		g_caps.deviceId = init.deviceId;
 
 		BX_TRACE("Init...");
 
@@ -3460,7 +3458,7 @@ namespace bgfx
 		errorState = ErrorState::ContextAllocated;
 
 		s_ctx = BX_ALIGNED_NEW(g_allocator, Context, Context::kAlignment);
-		if (s_ctx->init(_init) )
+		if (s_ctx->init(init) )
 		{
 			BX_TRACE("Init complete.");
 			return true;