src/OpenGL/libGL/Device.cpp - SwiftShader - Git at Google

 // SwiftShader Software Renderer
 //
 // Copyright(c) 2005-2013 TransGaming Inc.
 //
 // All rights reserved. No part of this software may be copied, distributed, transmitted,
 // transcribed, stored in a retrieval system, translated into any human or computer
 // language by any means, or disclosed to third parties without the explicit written
 // agreement of TransGaming Inc. Without such an agreement, no rights or licenses, express
 // or implied, including but not limited to any patent rights, are granted to you.
 //

 #include "Device.hpp"

 #include "Image.hpp"
 #include "Texture.h"

 #include "Renderer/Renderer.hpp"
 #include "Renderer/Clipper.hpp"
 #include "Shader/PixelShader.hpp"
 #include "Shader/VertexShader.hpp"
 #include "Main/Config.hpp"
 #include "Main/FrameBuffer.hpp"
 #include "Common/Math.hpp"
 #include "Common/Configurator.hpp"
 #include "Common/Timer.hpp"
 #include "../common/debug.h"

 bool localShaderConstants = false;

 namespace gl
 {
 	using namespace sw;

 	Device::Device(Context *context) : Renderer(context, true, true, true, true, true), context(context)
 	{
 		depthStencil = 0;
 		renderTarget = 0;

 		setDepthBufferEnable(true);
 		setFillMode(FILL_SOLID);
 		setShadingMode(SHADING_GOURAUD);
 		setDepthWriteEnable(true);
 		setAlphaTestEnable(false);
 		setSourceBlendFactor(BLEND_ONE);
 		setDestBlendFactor(BLEND_ZERO);
 		setCullMode(CULL_COUNTERCLOCKWISE);
 		setDepthCompare(DEPTH_LESSEQUAL);
 		setAlphaReference(0);
 		setAlphaCompare(ALPHA_ALWAYS);
 		setAlphaBlendEnable(false);
 		setFogEnable(false);
 		setSpecularEnable(false);
 		setFogColor(0);
 		setPixelFogMode(FOG_NONE);
 		setFogStart(0.0f);
 		setFogEnd(1.0f);
 		setFogDensity(1.0f);
 		setRangeFogEnable(false);
 		setStencilEnable(false);
 		setStencilFailOperation(OPERATION_KEEP);
 		setStencilZFailOperation(OPERATION_KEEP);
 		setStencilPassOperation(OPERATION_KEEP);
 		setStencilCompare(STENCIL_ALWAYS);
 		setStencilReference(0);
 		setStencilMask(0xFFFFFFFF);
 		setStencilWriteMask(0xFFFFFFFF);
 		setVertexFogMode(FOG_NONE);
 		setClipFlags(0);
 		setPointSize(1.0f);
 		setPointSizeMin(0.125f);
         setPointSizeMax(8192.0f);
 		setColorWriteMask(0, 0x0000000F);
 		setBlendOperation(BLENDOP_ADD);
 		scissorEnable = false;
 		setSlopeDepthBias(0.0f);
 		setTwoSidedStencil(false);
 		setStencilFailOperationCCW(OPERATION_KEEP);
 		setStencilZFailOperationCCW(OPERATION_KEEP);
 		setStencilPassOperationCCW(OPERATION_KEEP);
 		setStencilCompareCCW(STENCIL_ALWAYS);
 		setColorWriteMask(1, 0x0000000F);
 		setColorWriteMask(2, 0x0000000F);
 		setColorWriteMask(3, 0x0000000F);
 		setBlendConstant(0xFFFFFFFF);
 		setWriteSRGB(false);
 		setDepthBias(0.0f);
 		setSeparateAlphaBlendEnable(false);
 		setSourceBlendFactorAlpha(BLEND_ONE);
 		setDestBlendFactorAlpha(BLEND_ZERO);
 		setBlendOperationAlpha(BLENDOP_ADD);
 		setPointSpriteEnable(true);

 		for(int i = 0; i < 16; i++)
 		{
 			setAddressingModeU(sw::SAMPLER_PIXEL, i, ADDRESSING_WRAP);
 			setAddressingModeV(sw::SAMPLER_PIXEL, i, ADDRESSING_WRAP);
 			setAddressingModeW(sw::SAMPLER_PIXEL, i, ADDRESSING_WRAP);
 			setBorderColor(sw::SAMPLER_PIXEL, i, 0x00000000);
 			setTextureFilter(sw::SAMPLER_PIXEL, i, FILTER_POINT);
 			setMipmapFilter(sw::SAMPLER_PIXEL, i, MIPMAP_NONE);
 			setMipmapLOD(sw::SAMPLER_PIXEL, i, 0.0f);
 		}

 		for(int i = 0; i < 4; i++)
 		{
 			setAddressingModeU(sw::SAMPLER_VERTEX, i, ADDRESSING_WRAP);
 			setAddressingModeV(sw::SAMPLER_VERTEX, i, ADDRESSING_WRAP);
 			setAddressingModeW(sw::SAMPLER_VERTEX, i, ADDRESSING_WRAP);
 			setBorderColor(sw::SAMPLER_VERTEX, i, 0x00000000);
 			setTextureFilter(sw::SAMPLER_VERTEX, i, FILTER_POINT);
 			setMipmapFilter(sw::SAMPLER_VERTEX, i, MIPMAP_NONE);
 			setMipmapLOD(sw::SAMPLER_VERTEX, i, 0.0f);
 		}

 		for(int i = 0; i < 6; i++)
 		{
 			float plane[4] = {0, 0, 0, 0};

 			setClipPlane(i, plane);
 		}

 		pixelShader = 0;
 		vertexShader = 0;

 		pixelShaderDirty = true;
 		pixelShaderConstantsFDirty = 0;
 		vertexShaderDirty = true;
 		vertexShaderConstantsFDirty = 0;

 		for(int i = 0; i < 224; i++)
 		{
 			float zero[4] = {0, 0, 0, 0};

 			setPixelShaderConstantF(i, zero, 1);
 		}

 		for(int i = 0; i < 256; i++)
 		{
 			float zero[4] = {0, 0, 0, 0};

 			setVertexShaderConstantF(i, zero, 1);
 		}

 		setLightingEnable(false);

 		setGlobalAmbient(sw::Color<float>(0.2f, 0.2f, 0.2f, 1.0f));
 		setMaterialAmbient(sw::Color<float>(0.2f, 0.2f, 0.2f, 1.0f));
 		setMaterialDiffuse(sw::Color<float>(0.8f, 0.8f, 0.8f, 1.0f));
 		setMaterialSpecular(sw::Color<float>(0.0f, 0.0f, 0.0f, 1.0f));
 		setMaterialEmission(sw::Color<float>(0.0f, 0.0f, 0.0f, 1.0f));

 		for(int i = 0; i < 8; i++)
 		{
 			setLightEnable(i, false);
 			setLightAttenuation(i, 1.0f, 0.0f, 0.0f);
 		}

         setDiffuseMaterialSource(sw::MATERIAL_COLOR1);
         setSpecularMaterialSource(sw::MATERIAL_MATERIAL);
         setAmbientMaterialSource(sw::MATERIAL_COLOR1);
         setEmissiveMaterialSource(sw::MATERIAL_MATERIAL);
 	}

 	Device::~Device()
 	{
 		if(depthStencil)
 		{
 			depthStencil->release();
 			depthStencil = 0;
 		}

 		if(renderTarget)
 		{
 			renderTarget->release();
 			renderTarget = 0;
 		}

 		delete context;
 	}

 	void Device::clearColor(unsigned int color, unsigned int rgbaMask)
 	{
 		if(!renderTarget)
 		{
 			return;
 		}

 		int x0 = 0;
 		int y0 = 0;
 		int width = renderTarget->getExternalWidth();
 		int height = renderTarget->getExternalHeight();

 		if(scissorEnable)   // Clamp against scissor rectangle
 		{
 			if(x0 < scissorRect.x0) x0 = scissorRect.x0;
 			if(y0 < scissorRect.y0) y0 = scissorRect.y0;
 			if(width > scissorRect.x1 - scissorRect.x0) width = scissorRect.x1 - scissorRect.x0;
 			if(height > scissorRect.y1 - scissorRect.y0) height = scissorRect.y1 - scissorRect.y0;
 		}

 		renderTarget->clearColorBuffer(color, rgbaMask, x0, y0, width, height);
 	}

 	void Device::clearDepth(float z)
 	{
 		if(!depthStencil)
 		{
 			return;
 		}

 		if(z > 1) z = 1;
 		if(z < 0) z = 0;

 		int x0 = 0;
 		int y0 = 0;
 		int width = depthStencil->getExternalWidth();
 		int height = depthStencil->getExternalHeight();

 		if(scissorEnable)   // Clamp against scissor rectangle
 		{
 			if(x0 < scissorRect.x0) x0 = scissorRect.x0;
 			if(y0 < scissorRect.y0) y0 = scissorRect.y0;
 			if(width > scissorRect.x1 - scissorRect.x0) width = scissorRect.x1 - scissorRect.x0;
 			if(height > scissorRect.y1 - scissorRect.y0) height = scissorRect.y1 - scissorRect.y0;
 		}

 		depthStencil->clearDepthBuffer(z, x0, y0, width, height);
 	}

 	void Device::clearStencil(unsigned int stencil, unsigned int mask)
 	{
 		if(!depthStencil)
 		{
 			return;
 		}

 		int x0 = 0;
 		int y0 = 0;
 		int width = depthStencil->getExternalWidth();
 		int height = depthStencil->getExternalHeight();

 		if(scissorEnable)   // Clamp against scissor rectangle
 		{
 			if(x0 < scissorRect.x0) x0 = scissorRect.x0;
 			if(y0 < scissorRect.y0) y0 = scissorRect.y0;
 			if(width > scissorRect.x1 - scissorRect.x0) width = scissorRect.x1 - scissorRect.x0;
 			if(height > scissorRect.y1 - scissorRect.y0) height = scissorRect.y1 - scissorRect.y0;
 		}

 		depthStencil->clearStencilBuffer(stencil, mask, x0, y0, width, height);
 	}

 	Image *Device::createDepthStencilSurface(unsigned int width, unsigned int height, sw::Format format, int multiSampleDepth, bool discard)
 	{
 		if(width == 0 || height == 0 || height > OUTLINE_RESOLUTION)
 		{
 			ERR("Invalid parameters");
 			return 0;
 		}

 		bool lockable = true;

 		switch(format)
 		{
 	//	case FORMAT_D15S1:
 		case FORMAT_D24S8:
 		case FORMAT_D24X8:
 	//	case FORMAT_D24X4S4:
 		case FORMAT_D24FS8:
 		case FORMAT_D32:
 		case FORMAT_D16:
 			lockable = false;
 			break;
 	//	case FORMAT_S8_LOCKABLE:
 	//	case FORMAT_D16_LOCKABLE:
 		case FORMAT_D32F_LOCKABLE:
 	//	case FORMAT_D32_LOCKABLE:
 		case FORMAT_DF24S8:
 		case FORMAT_DF16S8:
 			lockable = true;
 			break;
 		default:
 			UNREACHABLE();
 		}

 		Image *surface = new Image(0, width, height, format, multiSampleDepth, lockable, true);

 		if(!surface)
 		{
 			ERR("Out of memory");
 			return 0;
 		}

 		return surface;
 	}

 	Image *Device::createRenderTarget(unsigned int width, unsigned int height, sw::Format format, int multiSampleDepth, bool lockable)
 	{
 		if(height > OUTLINE_RESOLUTION)
 		{
 			ERR("Invalid parameters");
 			return 0;
 		}

 		Image *surface = new Image(0, width, height, format, multiSampleDepth, lockable, true);

 		if(!surface)
 		{
 			ERR("Out of memory");
 			return 0;
 		}

 		return surface;
 	}

 	void Device::drawIndexedPrimitive(PrimitiveType type, unsigned int indexOffset, unsigned int primitiveCount, int indexSize)
 	{
 		if(!bindResources() || !primitiveCount)
 		{
 			return;
 		}

 		DrawType drawType;

 		if(indexSize == 4)
 		{
 			switch(type)
 			{
 			case DRAW_POINTLIST:     drawType = sw::DRAW_INDEXEDPOINTLIST32;     break;
 			case DRAW_LINELIST:      drawType = sw::DRAW_INDEXEDLINELIST32;      break;
 			case DRAW_LINESTRIP:     drawType = sw::DRAW_INDEXEDLINESTRIP32;     break;
 			case DRAW_LINELOOP:      drawType = sw::DRAW_INDEXEDLINELOOP32;      break;
 			case DRAW_TRIANGLELIST:  drawType = sw::DRAW_INDEXEDTRIANGLELIST32;  break;
 			case DRAW_TRIANGLESTRIP: drawType = sw::DRAW_INDEXEDTRIANGLESTRIP32; break;
 			case DRAW_TRIANGLEFAN:   drawType = sw::DRAW_INDEXEDTRIANGLEFAN32;	  break;
 			default: UNREACHABLE();
 			}
 		}
 		else if(indexSize == 2)
 		{
 			switch(type)
 			{
 			case DRAW_POINTLIST:     drawType = sw::DRAW_INDEXEDPOINTLIST16;     break;
 			case DRAW_LINELIST:      drawType = sw::DRAW_INDEXEDLINELIST16;      break;
 			case DRAW_LINESTRIP:     drawType = sw::DRAW_INDEXEDLINESTRIP16;     break;
 			case DRAW_LINELOOP:      drawType = sw::DRAW_INDEXEDLINELOOP16;      break;
 			case DRAW_TRIANGLELIST:  drawType = sw::DRAW_INDEXEDTRIANGLELIST16;  break;
 			case DRAW_TRIANGLESTRIP: drawType = sw::DRAW_INDEXEDTRIANGLESTRIP16; break;
 			case DRAW_TRIANGLEFAN:   drawType = sw::DRAW_INDEXEDTRIANGLEFAN16;   break;
 			default: UNREACHABLE();
 			}
 		}
 		else if(indexSize == 1)
 		{
 			switch(type)
 			{
 			case DRAW_POINTLIST:     drawType = sw::DRAW_INDEXEDPOINTLIST8;     break;
 			case DRAW_LINELIST:      drawType = sw::DRAW_INDEXEDLINELIST8;      break;
 			case DRAW_LINESTRIP:     drawType = sw::DRAW_INDEXEDLINESTRIP8;     break;
 			case DRAW_LINELOOP:      drawType = sw::DRAW_INDEXEDLINELOOP8;      break;
 			case DRAW_TRIANGLELIST:  drawType = sw::DRAW_INDEXEDTRIANGLELIST8;  break;
 			case DRAW_TRIANGLESTRIP: drawType = sw::DRAW_INDEXEDTRIANGLESTRIP8; break;
 			case DRAW_TRIANGLEFAN:   drawType = sw::DRAW_INDEXEDTRIANGLEFAN8;   break;
 			default: UNREACHABLE();
 			}
 		}
 		else UNREACHABLE();

 		draw(drawType, indexOffset, primitiveCount);
 	}

 	void Device::drawPrimitive(PrimitiveType primitiveType, unsigned int primitiveCount)
 	{
 		if(!bindResources() || !primitiveCount)
 		{
 			return;
 		}

 		setIndexBuffer(0);

 		DrawType drawType;

 		switch(primitiveType)
 		{
 		case DRAW_POINTLIST:     drawType = sw::DRAW_POINTLIST;     break;
 		case DRAW_LINELIST:      drawType = sw::DRAW_LINELIST;      break;
 		case DRAW_LINESTRIP:     drawType = sw::DRAW_LINESTRIP;     break;
 		case DRAW_LINELOOP:      drawType = sw::DRAW_LINELOOP;      break;
 		case DRAW_TRIANGLELIST:  drawType = sw::DRAW_TRIANGLELIST;  break;
 		case DRAW_TRIANGLESTRIP: drawType = sw::DRAW_TRIANGLESTRIP; break;
 		case DRAW_TRIANGLEFAN:   drawType = sw::DRAW_TRIANGLEFAN;   break;
         case DRAW_QUADLIST:      drawType = sw::DRAW_QUADLIST;      break;
 		default: UNREACHABLE();
 		}

 		draw(drawType, 0, primitiveCount);
 	}

 	void Device::setDepthStencilSurface(Image *depthStencil)
 	{
 		if(this->depthStencil == depthStencil)
 		{
 			return;
 		}

 		if(depthStencil)
 		{
 			depthStencil->addRef();
 		}

 		if(this->depthStencil)
 		{
 			this->depthStencil->release();
 		}

 		this->depthStencil = depthStencil;

 		setDepthStencil(depthStencil);
 	}

 	void Device::setPixelShader(PixelShader *pixelShader)
 	{
 		this->pixelShader = pixelShader;
 		pixelShaderDirty = true;
 	}

 	void Device::setPixelShaderConstantF(unsigned int startRegister, const float *constantData, unsigned int count)
 	{
 		for(unsigned int i = 0; i < count && startRegister + i < 224; i++)
 		{
 			pixelShaderConstantF[startRegister + i][0] = constantData[i * 4 + 0];
 			pixelShaderConstantF[startRegister + i][1] = constantData[i * 4 + 1];
 			pixelShaderConstantF[startRegister + i][2] = constantData[i * 4 + 2];
 			pixelShaderConstantF[startRegister + i][3] = constantData[i * 4 + 3];
 		}

 		pixelShaderConstantsFDirty = max(startRegister + count, pixelShaderConstantsFDirty);
 		pixelShaderDirty = true;   // Reload DEF constants
 	}

 	void Device::setScissorEnable(bool enable)
 	{
 		scissorEnable = enable;
 	}

 	void Device::setRenderTarget(Image *renderTarget)
 	{
 		if(renderTarget)
 		{
 			renderTarget->addRef();
 		}

 		if(this->renderTarget)
 		{
 			this->renderTarget->release();
 		}

 		this->renderTarget = renderTarget;

 		Renderer::setRenderTarget(0, renderTarget);
 	}

 	void Device::setScissorRect(const sw::Rect &rect)
 	{
 		scissorRect = rect;
 	}

 	void Device::setVertexShader(VertexShader *vertexShader)
 	{
 		this->vertexShader = vertexShader;
 		vertexShaderDirty = true;
 	}

 	void Device::setVertexShaderConstantF(unsigned int startRegister, const float *constantData, unsigned int count)
 	{
 		for(unsigned int i = 0; i < count && startRegister + i < 256; i++)
 		{
 			vertexShaderConstantF[startRegister + i][0] = constantData[i * 4 + 0];
 			vertexShaderConstantF[startRegister + i][1] = constantData[i * 4 + 1];
 			vertexShaderConstantF[startRegister + i][2] = constantData[i * 4 + 2];
 			vertexShaderConstantF[startRegister + i][3] = constantData[i * 4 + 3];
 		}

 		vertexShaderConstantsFDirty = max(startRegister + count, vertexShaderConstantsFDirty);
 		vertexShaderDirty = true;   // Reload DEF constants
 	}

 	void Device::setViewport(const Viewport &viewport)
 	{
 		this->viewport = viewport;
 	}

 	bool Device::stretchRect(Image *source, const sw::SliceRect *sourceRect, Image *dest, const sw::SliceRect *destRect, bool filter)
 	{
 		if(!source || !dest || !validRectangle(sourceRect, source) || !validRectangle(destRect, dest))
 		{
 			ERR("Invalid parameters");
 			return false;
 		}

 		int sWidth = source->getExternalWidth();
 		int sHeight = source->getExternalHeight();
 		int dWidth = dest->getExternalWidth();
 		int dHeight = dest->getExternalHeight();

 		SliceRect sRect;
 		SliceRect dRect;

 		if(sourceRect)
 		{
 			sRect = *sourceRect;
 		}
 		else
 		{
 			sRect.y0 = 0;
 			sRect.x0 = 0;
 			sRect.y1 = sHeight;
 			sRect.x1 = sWidth;
 		}

 		if(destRect)
 		{
 			dRect = *destRect;
 		}
 		else
 		{
 			dRect.y0 = 0;
 			dRect.x0 = 0;
 			dRect.y1 = dHeight;
 			dRect.x1 = dWidth;
 		}

 		bool scaling = (sRect.x1 - sRect.x0 != dRect.x1 - dRect.x0) || (sRect.y1 - sRect.y0 != dRect.y1 - dRect.y0);
 		bool equalFormats = source->getInternalFormat() == dest->getInternalFormat();
 		bool depthStencil = Image::isDepth(source->getInternalFormat()) || Image::isStencil(source->getInternalFormat());
 		bool alpha0xFF = false;

 		if((source->getInternalFormat() == FORMAT_A8R8G8B8 && dest->getInternalFormat() == FORMAT_X8R8G8B8) ||
 		   (source->getInternalFormat() == FORMAT_X8R8G8B8 && dest->getInternalFormat() == FORMAT_A8R8G8B8))
 		{
 			equalFormats = true;
 			alpha0xFF = true;
 		}

 		if(depthStencil)   // Copy entirely, internally   // FIXME: Check
 		{
 			if(source->hasDepth())
 			{
 				sw::byte *sourceBuffer = (sw::byte*)source->lockInternal(0, 0, sRect.slice, LOCK_READONLY, PUBLIC);
 				sw::byte *destBuffer = (sw::byte*)dest->lockInternal(0, 0, dRect.slice, LOCK_DISCARD, PUBLIC);

 				unsigned int width = source->getInternalWidth();
 				unsigned int height = source->getInternalHeight();
 				unsigned int pitch = source->getInternalPitchB();

 				for(unsigned int y = 0; y < height; y++)
 				{
 					memcpy(destBuffer, sourceBuffer, pitch);   // FIXME: Only copy width * bytes

 					sourceBuffer += pitch;
 					destBuffer += pitch;
 				}

 				source->unlockInternal();
 				dest->unlockInternal();
 			}

 			if(source->hasStencil())
 			{
 				sw::byte *sourceBuffer = (sw::byte*)source->lockStencil(0, PUBLIC);
 				sw::byte *destBuffer = (sw::byte*)dest->lockStencil(0, PUBLIC);

 				unsigned int width = source->getInternalWidth();
 				unsigned int height = source->getInternalHeight();
 				unsigned int pitch = source->getStencilPitchB();

 				for(unsigned int y = 0; y < height; y++)
 				{
 					memcpy(destBuffer, sourceBuffer, pitch);   // FIXME: Only copy width * bytes

 					sourceBuffer += pitch;
 					destBuffer += pitch;
 				}

 				source->unlockStencil();
 				dest->unlockStencil();
 			}
 		}
 		else if(!scaling && equalFormats)
 		{
 			unsigned char *sourceBytes = (unsigned char*)source->lockInternal(sRect.x0, sRect.y0, sRect.slice, LOCK_READONLY, PUBLIC);
 			unsigned char *destBytes = (unsigned char*)dest->lockInternal(dRect.x0, dRect.y0, dRect.slice, LOCK_READWRITE, PUBLIC);
 			unsigned int sourcePitch = source->getInternalPitchB();
 			unsigned int destPitch = dest->getInternalPitchB();

 			unsigned int width = dRect.x1 - dRect.x0;
 			unsigned int height = dRect.y1 - dRect.y0;
 			unsigned int bytes = width * Image::bytes(source->getInternalFormat());

 			for(unsigned int y = 0; y < height; y++)
 			{
 				memcpy(destBytes, sourceBytes, bytes);

 				if(alpha0xFF)
 				{
 					for(unsigned int x = 0; x < width; x++)
 					{
 						destBytes[4 * x + 3] = 0xFF;
 					}
 				}

 				sourceBytes += sourcePitch;
 				destBytes += destPitch;
 			}

 			source->unlockInternal();
 			dest->unlockInternal();
 		}
 		else
 		{
 			blit(source, sRect, dest, dRect, scaling && filter);
 		}

 		return true;
 	}

 	bool Device::bindResources()
 	{
 		if(!bindViewport())
 		{
 			return false;   // Zero-area target region
 		}

 		bindShaderConstants();

 		return true;
 	}

 	void Device::bindShaderConstants()
 	{
 		if(pixelShaderDirty)
 		{
 			if(pixelShader)
 			{
 				if(pixelShaderConstantsFDirty)
 				{
 					Renderer::setPixelShaderConstantF(0, pixelShaderConstantF[0], pixelShaderConstantsFDirty);
 				}

 				Renderer::setPixelShader(pixelShader);   // Loads shader constants set with DEF
 				pixelShaderConstantsFDirty = pixelShader->dirtyConstantsF;   // Shader DEF'ed constants are dirty
 			}
 			else
 			{
 				setPixelShader(0);
 			}

 			pixelShaderDirty = false;
 		}

 		if(vertexShaderDirty)
 		{
 			if(vertexShader)
 			{
 				if(vertexShaderConstantsFDirty)
 				{
 					Renderer::setVertexShaderConstantF(0, vertexShaderConstantF[0], vertexShaderConstantsFDirty);
 				}

 				Renderer::setVertexShader(vertexShader);   // Loads shader constants set with DEF
 				vertexShaderConstantsFDirty = vertexShader->dirtyConstantsF;   // Shader DEF'ed constants are dirty
 			}
 			else
 			{
 				setVertexShader(0);
 			}

 			vertexShaderDirty = false;
 		}
 	}

 	bool Device::bindViewport()
 	{
 		if(viewport.width <= 0 || viewport.height <= 0)
 		{
 			return false;
 		}

 		if(scissorEnable)
 		{
 			if(scissorRect.x0 >= scissorRect.x1 || scissorRect.y0 >= scissorRect.y1)
 			{
 				return false;
 			}

 			sw::Rect scissor;
 			scissor.x0 = scissorRect.x0;
 			scissor.x1 = scissorRect.x1;
 			scissor.y0 = scissorRect.y0;
 			scissor.y1 = scissorRect.y1;

 			setScissor(scissor);
 		}
 		else
 		{
 			sw::Rect scissor;
 			scissor.x0 = viewport.x0;
 			scissor.x1 = viewport.x0 + viewport.width;
 			scissor.y0 = viewport.y0;
 			scissor.y1 = viewport.y0 + viewport.height;

 			if(renderTarget)
 			{
 				scissor.x0 = max(scissor.x0, 0);
 				scissor.x1 = min(scissor.x1, renderTarget->getExternalWidth());
 				scissor.y0 = max(scissor.y0, 0);
 				scissor.y1 = min(scissor.y1, renderTarget->getExternalHeight());
 			}

 			if(depthStencil)
 			{
 				scissor.x0 = max(scissor.x0, 0);
 				scissor.x1 = min(scissor.x1, depthStencil->getExternalWidth());
 				scissor.y0 = max(scissor.y0, 0);
 				scissor.y1 = min(scissor.y1, depthStencil->getExternalHeight());
 			}

 			setScissor(scissor);
 		}

 		sw::Viewport view;
 		view.x0 = (float)viewport.x0;
 		view.y0 = (float)viewport.y0;
 		view.width = (float)viewport.width;
 		view.height = (float)viewport.height;
 		view.minZ = viewport.minZ;
 		view.maxZ = viewport.maxZ;

 		Renderer::setViewport(view);

 		return true;
 	}

 	bool Device::validRectangle(const sw::Rect *rect, Image *surface)
 	{
 		if(!rect)
 		{
 			return true;
 		}

 		if(rect->x1 <= rect->x0 || rect->y1 <= rect->y0)
 		{
 			return false;
 		}

 		if(rect->x0 < 0 || rect->y0 < 0)
 		{
 			return false;
 		}

 		if(rect->x1 > (int)surface->getWidth() || rect->y1 > (int)surface->getHeight())
 		{
 			return false;
 		}

 		return true;
 	}

 	void Device::finish()
 	{
 		synchronize();
 	}
 }
	// SwiftShader Software Renderer
	//
	// Copyright(c) 2005-2013 TransGaming Inc.
	//
	// All rights reserved. No part of this software may be copied, distributed, transmitted,
	// transcribed, stored in a retrieval system, translated into any human or computer
	// language by any means, or disclosed to third parties without the explicit written
	// agreement of TransGaming Inc. Without such an agreement, no rights or licenses, express
	// or implied, including but not limited to any patent rights, are granted to you.
	//

	#include "Device.hpp"

	#include "Image.hpp"
	#include "Texture.h"

	#include "Renderer/Renderer.hpp"
	#include "Renderer/Clipper.hpp"
	#include "Shader/PixelShader.hpp"
	#include "Shader/VertexShader.hpp"
	#include "Main/Config.hpp"
	#include "Main/FrameBuffer.hpp"
	#include "Common/Math.hpp"
	#include "Common/Configurator.hpp"
	#include "Common/Timer.hpp"
	#include "../common/debug.h"

	bool localShaderConstants = false;

	namespace gl
	{
	using namespace sw;

	Device::Device(Context *context) : Renderer(context, true, true, true, true, true), context(context)
	{
	depthStencil = 0;
	renderTarget = 0;

	setDepthBufferEnable(true);
	setFillMode(FILL_SOLID);
	setShadingMode(SHADING_GOURAUD);
	setDepthWriteEnable(true);
	setAlphaTestEnable(false);
	setSourceBlendFactor(BLEND_ONE);
	setDestBlendFactor(BLEND_ZERO);
	setCullMode(CULL_COUNTERCLOCKWISE);
	setDepthCompare(DEPTH_LESSEQUAL);
	setAlphaReference(0);
	setAlphaCompare(ALPHA_ALWAYS);
	setAlphaBlendEnable(false);
	setFogEnable(false);
	setSpecularEnable(false);
	setFogColor(0);
	setPixelFogMode(FOG_NONE);
	setFogStart(0.0f);
	setFogEnd(1.0f);
	setFogDensity(1.0f);
	setRangeFogEnable(false);
	setStencilEnable(false);
	setStencilFailOperation(OPERATION_KEEP);
	setStencilZFailOperation(OPERATION_KEEP);
	setStencilPassOperation(OPERATION_KEEP);
	setStencilCompare(STENCIL_ALWAYS);
	setStencilReference(0);
	setStencilMask(0xFFFFFFFF);
	setStencilWriteMask(0xFFFFFFFF);
	setVertexFogMode(FOG_NONE);
	setClipFlags(0);
	setPointSize(1.0f);
	setPointSizeMin(0.125f);
	setPointSizeMax(8192.0f);
	setColorWriteMask(0, 0x0000000F);
	setBlendOperation(BLENDOP_ADD);
	scissorEnable = false;
	setSlopeDepthBias(0.0f);
	setTwoSidedStencil(false);
	setStencilFailOperationCCW(OPERATION_KEEP);
	setStencilZFailOperationCCW(OPERATION_KEEP);
	setStencilPassOperationCCW(OPERATION_KEEP);
	setStencilCompareCCW(STENCIL_ALWAYS);
	setColorWriteMask(1, 0x0000000F);
	setColorWriteMask(2, 0x0000000F);
	setColorWriteMask(3, 0x0000000F);
	setBlendConstant(0xFFFFFFFF);
	setWriteSRGB(false);
	setDepthBias(0.0f);
	setSeparateAlphaBlendEnable(false);
	setSourceBlendFactorAlpha(BLEND_ONE);
	setDestBlendFactorAlpha(BLEND_ZERO);
	setBlendOperationAlpha(BLENDOP_ADD);
	setPointSpriteEnable(true);

	for(int i = 0; i < 16; i++)
	{
	setAddressingModeU(sw::SAMPLER_PIXEL, i, ADDRESSING_WRAP);
	setAddressingModeV(sw::SAMPLER_PIXEL, i, ADDRESSING_WRAP);
	setAddressingModeW(sw::SAMPLER_PIXEL, i, ADDRESSING_WRAP);
	setBorderColor(sw::SAMPLER_PIXEL, i, 0x00000000);
	setTextureFilter(sw::SAMPLER_PIXEL, i, FILTER_POINT);
	setMipmapFilter(sw::SAMPLER_PIXEL, i, MIPMAP_NONE);
	setMipmapLOD(sw::SAMPLER_PIXEL, i, 0.0f);
	}

	for(int i = 0; i < 4; i++)
	{
	setAddressingModeU(sw::SAMPLER_VERTEX, i, ADDRESSING_WRAP);
	setAddressingModeV(sw::SAMPLER_VERTEX, i, ADDRESSING_WRAP);
	setAddressingModeW(sw::SAMPLER_VERTEX, i, ADDRESSING_WRAP);
	setBorderColor(sw::SAMPLER_VERTEX, i, 0x00000000);
	setTextureFilter(sw::SAMPLER_VERTEX, i, FILTER_POINT);
	setMipmapFilter(sw::SAMPLER_VERTEX, i, MIPMAP_NONE);
	setMipmapLOD(sw::SAMPLER_VERTEX, i, 0.0f);
	}

	for(int i = 0; i < 6; i++)
	{
	float plane[4] = {0, 0, 0, 0};

	setClipPlane(i, plane);
	}

	pixelShader = 0;
	vertexShader = 0;

	pixelShaderDirty = true;
	pixelShaderConstantsFDirty = 0;
	vertexShaderDirty = true;
	vertexShaderConstantsFDirty = 0;

	for(int i = 0; i < 224; i++)
	{
	float zero[4] = {0, 0, 0, 0};

	setPixelShaderConstantF(i, zero, 1);
	}

	for(int i = 0; i < 256; i++)
	{
	float zero[4] = {0, 0, 0, 0};

	setVertexShaderConstantF(i, zero, 1);
	}

	setLightingEnable(false);

	setGlobalAmbient(sw::Color<float>(0.2f, 0.2f, 0.2f, 1.0f));
	setMaterialAmbient(sw::Color<float>(0.2f, 0.2f, 0.2f, 1.0f));
	setMaterialDiffuse(sw::Color<float>(0.8f, 0.8f, 0.8f, 1.0f));
	setMaterialSpecular(sw::Color<float>(0.0f, 0.0f, 0.0f, 1.0f));
	setMaterialEmission(sw::Color<float>(0.0f, 0.0f, 0.0f, 1.0f));

	for(int i = 0; i < 8; i++)
	{
	setLightEnable(i, false);
	setLightAttenuation(i, 1.0f, 0.0f, 0.0f);
	}

	setDiffuseMaterialSource(sw::MATERIAL_COLOR1);
	setSpecularMaterialSource(sw::MATERIAL_MATERIAL);
	setAmbientMaterialSource(sw::MATERIAL_COLOR1);
	setEmissiveMaterialSource(sw::MATERIAL_MATERIAL);
	}

	Device::~Device()
	{
	if(depthStencil)
	{
	depthStencil->release();
	depthStencil = 0;
	}

	if(renderTarget)
	{
	renderTarget->release();
	renderTarget = 0;
	}

	delete context;
	}

	void Device::clearColor(unsigned int color, unsigned int rgbaMask)
	{
	if(!renderTarget)
	{
	return;
	}

	int x0 = 0;
	int y0 = 0;
	int width = renderTarget->getExternalWidth();
	int height = renderTarget->getExternalHeight();

	if(scissorEnable) // Clamp against scissor rectangle
	{
	if(x0 < scissorRect.x0) x0 = scissorRect.x0;
	if(y0 < scissorRect.y0) y0 = scissorRect.y0;
	if(width > scissorRect.x1 - scissorRect.x0) width = scissorRect.x1 - scissorRect.x0;
	if(height > scissorRect.y1 - scissorRect.y0) height = scissorRect.y1 - scissorRect.y0;
	}

	renderTarget->clearColorBuffer(color, rgbaMask, x0, y0, width, height);
	}

	void Device::clearDepth(float z)
	{
	if(!depthStencil)
	{
	return;
	}

	if(z > 1) z = 1;
	if(z < 0) z = 0;

	int x0 = 0;
	int y0 = 0;
	int width = depthStencil->getExternalWidth();
	int height = depthStencil->getExternalHeight();

	if(scissorEnable) // Clamp against scissor rectangle
	{
	if(x0 < scissorRect.x0) x0 = scissorRect.x0;
	if(y0 < scissorRect.y0) y0 = scissorRect.y0;
	if(width > scissorRect.x1 - scissorRect.x0) width = scissorRect.x1 - scissorRect.x0;
	if(height > scissorRect.y1 - scissorRect.y0) height = scissorRect.y1 - scissorRect.y0;
	}

	depthStencil->clearDepthBuffer(z, x0, y0, width, height);
	}

	void Device::clearStencil(unsigned int stencil, unsigned int mask)
	{
	if(!depthStencil)
	{
	return;
	}

	int x0 = 0;
	int y0 = 0;
	int width = depthStencil->getExternalWidth();
	int height = depthStencil->getExternalHeight();

	if(scissorEnable) // Clamp against scissor rectangle
	{
	if(x0 < scissorRect.x0) x0 = scissorRect.x0;
	if(y0 < scissorRect.y0) y0 = scissorRect.y0;
	if(width > scissorRect.x1 - scissorRect.x0) width = scissorRect.x1 - scissorRect.x0;
	if(height > scissorRect.y1 - scissorRect.y0) height = scissorRect.y1 - scissorRect.y0;
	}

	depthStencil->clearStencilBuffer(stencil, mask, x0, y0, width, height);
	}

	Image *Device::createDepthStencilSurface(unsigned int width, unsigned int height, sw::Format format, int multiSampleDepth, bool discard)
	{
	if(width == 0 \|\| height == 0 \|\| height > OUTLINE_RESOLUTION)
	{
	ERR("Invalid parameters");
	return 0;
	}

	bool lockable = true;

	switch(format)
	{
	// case FORMAT_D15S1:
	case FORMAT_D24S8:
	case FORMAT_D24X8:
	// case FORMAT_D24X4S4:
	case FORMAT_D24FS8:
	case FORMAT_D32:
	case FORMAT_D16:
	lockable = false;
	break;
	// case FORMAT_S8_LOCKABLE:
	// case FORMAT_D16_LOCKABLE:
	case FORMAT_D32F_LOCKABLE:
	// case FORMAT_D32_LOCKABLE:
	case FORMAT_DF24S8:
	case FORMAT_DF16S8:
	lockable = true;
	break;
	default:
	UNREACHABLE();
	}

	Image *surface = new Image(0, width, height, format, multiSampleDepth, lockable, true);

	if(!surface)
	{
	ERR("Out of memory");
	return 0;
	}

	return surface;
	}

	Image *Device::createRenderTarget(unsigned int width, unsigned int height, sw::Format format, int multiSampleDepth, bool lockable)
	{
	if(height > OUTLINE_RESOLUTION)
	{
	ERR("Invalid parameters");
	return 0;
	}

	Image *surface = new Image(0, width, height, format, multiSampleDepth, lockable, true);

	if(!surface)
	{
	ERR("Out of memory");
	return 0;
	}

	return surface;
	}

	void Device::drawIndexedPrimitive(PrimitiveType type, unsigned int indexOffset, unsigned int primitiveCount, int indexSize)
	{
	if(!bindResources() \|\| !primitiveCount)
	{
	return;
	}

	DrawType drawType;

	if(indexSize == 4)
	{
	switch(type)
	{
	case DRAW_POINTLIST: drawType = sw::DRAW_INDEXEDPOINTLIST32; break;
	case DRAW_LINELIST: drawType = sw::DRAW_INDEXEDLINELIST32; break;
	case DRAW_LINESTRIP: drawType = sw::DRAW_INDEXEDLINESTRIP32; break;
	case DRAW_LINELOOP: drawType = sw::DRAW_INDEXEDLINELOOP32; break;
	case DRAW_TRIANGLELIST: drawType = sw::DRAW_INDEXEDTRIANGLELIST32; break;
	case DRAW_TRIANGLESTRIP: drawType = sw::DRAW_INDEXEDTRIANGLESTRIP32; break;
	case DRAW_TRIANGLEFAN: drawType = sw::DRAW_INDEXEDTRIANGLEFAN32; break;
	default: UNREACHABLE();
	}
	}
	else if(indexSize == 2)
	{
	switch(type)
	{
	case DRAW_POINTLIST: drawType = sw::DRAW_INDEXEDPOINTLIST16; break;
	case DRAW_LINELIST: drawType = sw::DRAW_INDEXEDLINELIST16; break;
	case DRAW_LINESTRIP: drawType = sw::DRAW_INDEXEDLINESTRIP16; break;
	case DRAW_LINELOOP: drawType = sw::DRAW_INDEXEDLINELOOP16; break;
	case DRAW_TRIANGLELIST: drawType = sw::DRAW_INDEXEDTRIANGLELIST16; break;
	case DRAW_TRIANGLESTRIP: drawType = sw::DRAW_INDEXEDTRIANGLESTRIP16; break;
	case DRAW_TRIANGLEFAN: drawType = sw::DRAW_INDEXEDTRIANGLEFAN16; break;
	default: UNREACHABLE();
	}
	}
	else if(indexSize == 1)
	{
	switch(type)
	{
	case DRAW_POINTLIST: drawType = sw::DRAW_INDEXEDPOINTLIST8; break;
	case DRAW_LINELIST: drawType = sw::DRAW_INDEXEDLINELIST8; break;
	case DRAW_LINESTRIP: drawType = sw::DRAW_INDEXEDLINESTRIP8; break;
	case DRAW_LINELOOP: drawType = sw::DRAW_INDEXEDLINELOOP8; break;
	case DRAW_TRIANGLELIST: drawType = sw::DRAW_INDEXEDTRIANGLELIST8; break;
	case DRAW_TRIANGLESTRIP: drawType = sw::DRAW_INDEXEDTRIANGLESTRIP8; break;
	case DRAW_TRIANGLEFAN: drawType = sw::DRAW_INDEXEDTRIANGLEFAN8; break;
	default: UNREACHABLE();
	}
	}
	else UNREACHABLE();

	draw(drawType, indexOffset, primitiveCount);
	}

	void Device::drawPrimitive(PrimitiveType primitiveType, unsigned int primitiveCount)
	{
	if(!bindResources() \|\| !primitiveCount)
	{
	return;
	}

	setIndexBuffer(0);

	DrawType drawType;

	switch(primitiveType)
	{
	case DRAW_POINTLIST: drawType = sw::DRAW_POINTLIST; break;
	case DRAW_LINELIST: drawType = sw::DRAW_LINELIST; break;
	case DRAW_LINESTRIP: drawType = sw::DRAW_LINESTRIP; break;
	case DRAW_LINELOOP: drawType = sw::DRAW_LINELOOP; break;
	case DRAW_TRIANGLELIST: drawType = sw::DRAW_TRIANGLELIST; break;
	case DRAW_TRIANGLESTRIP: drawType = sw::DRAW_TRIANGLESTRIP; break;
	case DRAW_TRIANGLEFAN: drawType = sw::DRAW_TRIANGLEFAN; break;
	case DRAW_QUADLIST: drawType = sw::DRAW_QUADLIST; break;
	default: UNREACHABLE();
	}

	draw(drawType, 0, primitiveCount);
	}

	void Device::setDepthStencilSurface(Image *depthStencil)
	{
	if(this->depthStencil == depthStencil)
	{
	return;
	}

	if(depthStencil)
	{
	depthStencil->addRef();
	}

	if(this->depthStencil)
	{
	this->depthStencil->release();
	}

	this->depthStencil = depthStencil;

	setDepthStencil(depthStencil);
	}

	void Device::setPixelShader(PixelShader *pixelShader)
	{
	this->pixelShader = pixelShader;
	pixelShaderDirty = true;
	}

	void Device::setPixelShaderConstantF(unsigned int startRegister, const float *constantData, unsigned int count)
	{
	for(unsigned int i = 0; i < count && startRegister + i < 224; i++)
	{
	pixelShaderConstantF[startRegister + i][0] = constantData[i * 4 + 0];
	pixelShaderConstantF[startRegister + i][1] = constantData[i * 4 + 1];
	pixelShaderConstantF[startRegister + i][2] = constantData[i * 4 + 2];
	pixelShaderConstantF[startRegister + i][3] = constantData[i * 4 + 3];
	}

	pixelShaderConstantsFDirty = max(startRegister + count, pixelShaderConstantsFDirty);
	pixelShaderDirty = true; // Reload DEF constants
	}

	void Device::setScissorEnable(bool enable)
	{
	scissorEnable = enable;
	}

	void Device::setRenderTarget(Image *renderTarget)
	{
	if(renderTarget)
	{
	renderTarget->addRef();
	}

	if(this->renderTarget)
	{
	this->renderTarget->release();
	}

	this->renderTarget = renderTarget;

	Renderer::setRenderTarget(0, renderTarget);
	}

	void Device::setScissorRect(const sw::Rect &rect)
	{
	scissorRect = rect;
	}

	void Device::setVertexShader(VertexShader *vertexShader)
	{
	this->vertexShader = vertexShader;
	vertexShaderDirty = true;
	}

	void Device::setVertexShaderConstantF(unsigned int startRegister, const float *constantData, unsigned int count)
	{
	for(unsigned int i = 0; i < count && startRegister + i < 256; i++)
	{
	vertexShaderConstantF[startRegister + i][0] = constantData[i * 4 + 0];
	vertexShaderConstantF[startRegister + i][1] = constantData[i * 4 + 1];
	vertexShaderConstantF[startRegister + i][2] = constantData[i * 4 + 2];
	vertexShaderConstantF[startRegister + i][3] = constantData[i * 4 + 3];
	}

	vertexShaderConstantsFDirty = max(startRegister + count, vertexShaderConstantsFDirty);
	vertexShaderDirty = true; // Reload DEF constants
	}

	void Device::setViewport(const Viewport &viewport)
	{
	this->viewport = viewport;
	}

	bool Device::stretchRect(Image source, const sw::SliceRect sourceRect, Image dest, const sw::SliceRect destRect, bool filter)
	{
	if(!source \|\| !dest \|\| !validRectangle(sourceRect, source) \|\| !validRectangle(destRect, dest))
	{
	ERR("Invalid parameters");
	return false;
	}

	int sWidth = source->getExternalWidth();
	int sHeight = source->getExternalHeight();
	int dWidth = dest->getExternalWidth();
	int dHeight = dest->getExternalHeight();

	SliceRect sRect;
	SliceRect dRect;

	if(sourceRect)
	{
	sRect = *sourceRect;
	}
	else
	{
	sRect.y0 = 0;
	sRect.x0 = 0;
	sRect.y1 = sHeight;
	sRect.x1 = sWidth;
	}

	if(destRect)
	{
	dRect = *destRect;
	}
	else
	{
	dRect.y0 = 0;
	dRect.x0 = 0;
	dRect.y1 = dHeight;
	dRect.x1 = dWidth;
	}

	bool scaling = (sRect.x1 - sRect.x0 != dRect.x1 - dRect.x0) \|\| (sRect.y1 - sRect.y0 != dRect.y1 - dRect.y0);
	bool equalFormats = source->getInternalFormat() == dest->getInternalFormat();
	bool depthStencil = Image::isDepth(source->getInternalFormat()) \|\| Image::isStencil(source->getInternalFormat());
	bool alpha0xFF = false;

	if((source->getInternalFormat() == FORMAT_A8R8G8B8 && dest->getInternalFormat() == FORMAT_X8R8G8B8) \|\|
	(source->getInternalFormat() == FORMAT_X8R8G8B8 && dest->getInternalFormat() == FORMAT_A8R8G8B8))
	{
	equalFormats = true;
	alpha0xFF = true;
	}

	if(depthStencil) // Copy entirely, internally // FIXME: Check
	{
	if(source->hasDepth())
	{
	sw::byte sourceBuffer = (sw::byte)source->lockInternal(0, 0, sRect.slice, LOCK_READONLY, PUBLIC);
	sw::byte destBuffer = (sw::byte)dest->lockInternal(0, 0, dRect.slice, LOCK_DISCARD, PUBLIC);

	unsigned int width = source->getInternalWidth();
	unsigned int height = source->getInternalHeight();
	unsigned int pitch = source->getInternalPitchB();

	for(unsigned int y = 0; y < height; y++)
	{
	memcpy(destBuffer, sourceBuffer, pitch); // FIXME: Only copy width * bytes

	sourceBuffer += pitch;
	destBuffer += pitch;
	}

	source->unlockInternal();
	dest->unlockInternal();
	}

	if(source->hasStencil())
	{
	sw::byte sourceBuffer = (sw::byte)source->lockStencil(0, PUBLIC);
	sw::byte destBuffer = (sw::byte)dest->lockStencil(0, PUBLIC);

	unsigned int width = source->getInternalWidth();
	unsigned int height = source->getInternalHeight();
	unsigned int pitch = source->getStencilPitchB();

	for(unsigned int y = 0; y < height; y++)
	{
	memcpy(destBuffer, sourceBuffer, pitch); // FIXME: Only copy width * bytes

	sourceBuffer += pitch;
	destBuffer += pitch;
	}

	source->unlockStencil();
	dest->unlockStencil();
	}
	}
	else if(!scaling && equalFormats)
	{
	unsigned char sourceBytes = (unsigned char)source->lockInternal(sRect.x0, sRect.y0, sRect.slice, LOCK_READONLY, PUBLIC);
	unsigned char destBytes = (unsigned char)dest->lockInternal(dRect.x0, dRect.y0, dRect.slice, LOCK_READWRITE, PUBLIC);
	unsigned int sourcePitch = source->getInternalPitchB();
	unsigned int destPitch = dest->getInternalPitchB();

	unsigned int width = dRect.x1 - dRect.x0;
	unsigned int height = dRect.y1 - dRect.y0;
	unsigned int bytes = width * Image::bytes(source->getInternalFormat());

	for(unsigned int y = 0; y < height; y++)
	{
	memcpy(destBytes, sourceBytes, bytes);

	if(alpha0xFF)
	{
	for(unsigned int x = 0; x < width; x++)
	{
	destBytes[4 * x + 3] = 0xFF;
	}
	}

	sourceBytes += sourcePitch;
	destBytes += destPitch;
	}

	source->unlockInternal();
	dest->unlockInternal();
	}
	else
	{
	blit(source, sRect, dest, dRect, scaling && filter);
	}

	return true;
	}

	bool Device::bindResources()
	{
	if(!bindViewport())
	{
	return false; // Zero-area target region
	}

	bindShaderConstants();

	return true;
	}

	void Device::bindShaderConstants()
	{
	if(pixelShaderDirty)
	{
	if(pixelShader)
	{
	if(pixelShaderConstantsFDirty)
	{
	Renderer::setPixelShaderConstantF(0, pixelShaderConstantF[0], pixelShaderConstantsFDirty);
	}

	Renderer::setPixelShader(pixelShader); // Loads shader constants set with DEF
	pixelShaderConstantsFDirty = pixelShader->dirtyConstantsF; // Shader DEF'ed constants are dirty
	}
	else
	{
	setPixelShader(0);
	}

	pixelShaderDirty = false;
	}

	if(vertexShaderDirty)
	{
	if(vertexShader)
	{
	if(vertexShaderConstantsFDirty)
	{
	Renderer::setVertexShaderConstantF(0, vertexShaderConstantF[0], vertexShaderConstantsFDirty);
	}

	Renderer::setVertexShader(vertexShader); // Loads shader constants set with DEF
	vertexShaderConstantsFDirty = vertexShader->dirtyConstantsF; // Shader DEF'ed constants are dirty
	}
	else
	{
	setVertexShader(0);
	}

	vertexShaderDirty = false;
	}
	}

	bool Device::bindViewport()
	{
	if(viewport.width <= 0 \|\| viewport.height <= 0)
	{
	return false;
	}

	if(scissorEnable)
	{
	if(scissorRect.x0 >= scissorRect.x1 \|\| scissorRect.y0 >= scissorRect.y1)
	{
	return false;
	}

	sw::Rect scissor;
	scissor.x0 = scissorRect.x0;
	scissor.x1 = scissorRect.x1;
	scissor.y0 = scissorRect.y0;
	scissor.y1 = scissorRect.y1;

	setScissor(scissor);
	}
	else
	{
	sw::Rect scissor;
	scissor.x0 = viewport.x0;
	scissor.x1 = viewport.x0 + viewport.width;
	scissor.y0 = viewport.y0;
	scissor.y1 = viewport.y0 + viewport.height;

	if(renderTarget)
	{
	scissor.x0 = max(scissor.x0, 0);
	scissor.x1 = min(scissor.x1, renderTarget->getExternalWidth());
	scissor.y0 = max(scissor.y0, 0);
	scissor.y1 = min(scissor.y1, renderTarget->getExternalHeight());
	}

	if(depthStencil)
	{
	scissor.x0 = max(scissor.x0, 0);
	scissor.x1 = min(scissor.x1, depthStencil->getExternalWidth());
	scissor.y0 = max(scissor.y0, 0);
	scissor.y1 = min(scissor.y1, depthStencil->getExternalHeight());
	}

	setScissor(scissor);
	}

	sw::Viewport view;
	view.x0 = (float)viewport.x0;
	view.y0 = (float)viewport.y0;
	view.width = (float)viewport.width;
	view.height = (float)viewport.height;
	view.minZ = viewport.minZ;
	view.maxZ = viewport.maxZ;

	Renderer::setViewport(view);

	return true;
	}

	bool Device::validRectangle(const sw::Rect rect, Image surface)
	{
	if(!rect)
	{
	return true;
	}

	if(rect->x1 <= rect->x0 \|\| rect->y1 <= rect->y0)
	{
	return false;
	}

	if(rect->x0 < 0 \|\| rect->y0 < 0)
	{
	return false;
	}

	if(rect->x1 > (int)surface->getWidth() \|\| rect->y1 > (int)surface->getHeight())
	{
	return false;
	}

	return true;
	}

	void Device::finish()
	{
	synchronize();
	}
	}