Add glsl pixel program for stereo distortion

--HG--
branch : multipass-stereo

code/nel/include/nel/3d/gpu_program.h

@@ -266,6 +266,9 @@ public:
 	// Build feature info, called automatically by the driver after compile succeeds
 	void buildInfo(CSource *source);
 
+	// Override this to build additional info in a subclass
+	virtual void buildInfo();
+
 protected:
 	/// The progam source
 	std::vector<NLMISC::CSmartPtr<CSource> >				m_Sources;

code/nel/include/nel/3d/stereo_ovr.h

@@ -66,7 +66,7 @@ class ITexture;
 class CTextureUser;
 class CStereoOVRDevicePtr;
 class CStereoOVRDeviceHandle;
-class CPixelProgram;
+class CPixelProgramOVR;
 
 #define NL_STEREO_MAX_USER_CAMERAS 8
 
@@ -161,7 +161,7 @@ private:
 	NL3D::UMaterial m_BarrelMat;
 	NLMISC::CQuadUV m_BarrelQuadLeft;
 	NLMISC::CQuadUV m_BarrelQuadRight;
-	CPixelProgram *m_PixelProgram;
+	NLMISC::CRefPtr<CPixelProgramOVR> m_PixelProgram;
 	NLMISC::CVector m_EyePosition;
 	float m_Scale;
 

code/nel/src/3d/gpu_program.cpp

@@ -204,6 +204,13 @@ void IGPUProgram::buildInfo(CSource *source)
 			features.MaterialFlags &= ~CGPUProgramFeatures::MaterialAmbient;
 		}
 	}*/
+
+	buildInfo();
+}
+
+void IGPUProgram::buildInfo()
+{
+	
 }
 
 } /* namespace NL3D */

code/nel/src/3d/stereo_ovr.cpp

@@ -72,6 +72,7 @@ namespace NL3D {
 extern const char *g_StereoOVR_fp40;
 extern const char *g_StereoOVR_arbfp1;
 extern const char *g_StereoOVR_ps_2_0;
+extern const char *g_StereoOVR_glsl330f;
 
 namespace {
 
@@ -233,43 +234,106 @@ CStereoOVR::~CStereoOVR()
 	--s_DeviceCounter;
 }
 
+class CPixelProgramOVR : public CPixelProgram
+{
+public:
+	struct COVRIndices
+	{
+		uint LensCenter;
+		uint ScreenCenter;
+		uint Scale;
+		uint ScaleIn;
+		uint HmdWarpParam;
+	};
+
+	CPixelProgramOVR()
+	{
+		{
+			CSource *source = new CSource();
+			source->Profile = glsl330f;
+			source->Features.MaterialFlags = CGPUProgramFeatures::TextureStages;
+			source->setSourcePtr(g_StereoOVR_glsl330f);
+			addSource(source);
+		}
+		{
+			CSource *source = new CSource();
+			source->Profile = fp40;
+			source->Features.MaterialFlags = CGPUProgramFeatures::TextureStages;
+			source->setSourcePtr(g_StereoOVR_fp40);
+			source->ParamIndices["cLensCenter"] = 0;
+			source->ParamIndices["cScreenCenter"] = 1;
+			source->ParamIndices["cScale"] = 2;
+			source->ParamIndices["cScaleIn"] = 3;
+			source->ParamIndices["cHmdWarpParam"] = 4;
+			addSource(source);
+		}
+		{
+			CSource *source = new CSource();
+			source->Profile = arbfp1;
+			source->Features.MaterialFlags = CGPUProgramFeatures::TextureStages;
+			source->setSourcePtr(g_StereoOVR_arbfp1);
+			source->ParamIndices["cLensCenter"] = 0;
+			source->ParamIndices["cScreenCenter"] = 1;
+			source->ParamIndices["cScale"] = 2;
+			source->ParamIndices["cScaleIn"] = 3;
+			source->ParamIndices["cHmdWarpParam"] = 4;
+			addSource(source);
+		}
+		{
+			CSource *source = new CSource();
+			source->Profile = ps_2_0;
+			source->Features.MaterialFlags = CGPUProgramFeatures::TextureStages;
+			source->setSourcePtr(g_StereoOVR_ps_2_0);
+			source->ParamIndices["cLensCenter"] = 0;
+			source->ParamIndices["cScreenCenter"] = 1;
+			source->ParamIndices["cScale"] = 2;
+			source->ParamIndices["cScaleIn"] = 3;
+			source->ParamIndices["cHmdWarpParam"] = 4;
+			addSource(source);
+		}
+	}
+
+	virtual ~CPixelProgramOVR()
+	{
+		
+	}
+
+	virtual void buildInfo()
+	{
+		CPixelProgram::buildInfo();
+
+		m_OVRIndices.LensCenter = getUniformIndex("cLensCenter");
+		nlassert(m_OVRIndices.LensCenter != ~0);
+		m_OVRIndices.ScreenCenter = getUniformIndex("cScreenCenter");
+		nlassert(m_OVRIndices.ScreenCenter != ~0);
+		m_OVRIndices.Scale = getUniformIndex("cScale");
+		nlassert(m_OVRIndices.Scale != ~0);
+		m_OVRIndices.ScaleIn = getUniformIndex("cScaleIn");
+		nlassert(m_OVRIndices.ScaleIn != ~0);
+		m_OVRIndices.HmdWarpParam = getUniformIndex("cHmdWarpParam");
+		nlassert(m_OVRIndices.HmdWarpParam != ~0);
+	}
+
+	inline const COVRIndices &ovrIndices() { return m_OVRIndices; }
+
+private:
+	COVRIndices m_OVRIndices;
+
+};
+
 void CStereoOVR::setDriver(NL3D::UDriver *driver)
 {
 	nlassert(!m_PixelProgram);
 
 	NL3D::IDriver *drvInternal = (static_cast<CDriverUser *>(driver))->getDriver();
 
-	m_PixelProgram = new CPixelProgram();
+	if (drvInternal->supportBloomEffect() && drvInternal->supportNonPowerOfTwoTextures())
-
-	IGPUProgram::CSource *source = new IGPUProgram::CSource();
-	source->Features.MaterialFlags = CGPUProgramFeatures::TextureStages;
-	source->Profile = IGPUProgram::none;
-	if (drvInternal->supportPixelProgram(CPixelProgram::fp40) && drvInternal->supportBloomEffect() && drvInternal->supportNonPowerOfTwoTextures())
 	{
-		nldebug("VR: fp40");
+		m_PixelProgram = new CPixelProgramOVR();
-		source->Profile = IGPUProgram::fp40;
+		if (!drvInternal->compilePixelProgram(m_PixelProgram))
-		source->setSourcePtr(g_StereoOVR_fp40);
+		{
-		m_PixelProgram->addSource(source);
+			m_PixelProgram.kill();
-	}
+		}
-	else if (drvInternal->supportPixelProgram(CPixelProgram::arbfp1) && drvInternal->supportBloomEffect() && drvInternal->supportNonPowerOfTwoTextures())
-	{
-		nldebug("VR: arbfp1");
-		source->Profile = IGPUProgram::arbfp1;
-		source->setSourcePtr(g_StereoOVR_arbfp1);
-		m_PixelProgram->addSource(source);
-	}
-	else if (drvInternal->supportPixelProgram(CPixelProgram::ps_2_0))
-	{
-		nldebug("VR: ps_2_0");
-		source->Profile = IGPUProgram::ps_2_0;
-		source->setSourcePtr(g_StereoOVR_ps_2_0);
-		m_PixelProgram->addSource(source);
-	}
-	
-	if (!drvInternal->compilePixelProgram(m_PixelProgram))
-	{
-		delete m_PixelProgram;
-		m_PixelProgram = NULL;
 	}
 
 	if (m_PixelProgram)
@@ -590,11 +654,27 @@ bool CStereoOVR::endRenderTarget()
 		float scaleInX = (2 / w);
 		float scaleInY = (2 / h);
 		
-		drvInternal->setUniform2f(IDriver::PixelProgram, 0, lensCenterX, lensCenterY);
+
-		drvInternal->setUniform2f(IDriver::PixelProgram, 1, screenCenterX, screenCenterY);
+		drvInternal->setUniform2f(IDriver::PixelProgram, 
-		drvInternal->setUniform2f(IDriver::PixelProgram, 2, scaleX, scaleY);
+			m_PixelProgram->ovrIndices().LensCenter, 
-		drvInternal->setUniform2f(IDriver::PixelProgram, 3, scaleInX, scaleInY);
+			lensCenterX, lensCenterY);
-		drvInternal->setUniform4fv(IDriver::PixelProgram, 4, 1, m_DevicePtr->HMDInfo.DistortionK);
+
+		drvInternal->setUniform2f(IDriver::PixelProgram, 
+			m_PixelProgram->ovrIndices().ScreenCenter, 
+			screenCenterX, screenCenterY);
+
+		drvInternal->setUniform2f(IDriver::PixelProgram, 
+			m_PixelProgram->ovrIndices().Scale, 
+			scaleX, scaleY);
+
+		drvInternal->setUniform2f(IDriver::PixelProgram, 
+			m_PixelProgram->ovrIndices().ScaleIn, 
+			scaleInX, scaleInY);
+
+
+		drvInternal->setUniform4fv(IDriver::PixelProgram, 
+			m_PixelProgram->ovrIndices().HmdWarpParam, 
+			1, m_DevicePtr->HMDInfo.DistortionK);
 
 		m_Driver->drawQuad(m_BarrelQuadLeft, m_BarrelMat);
 
@@ -602,8 +682,15 @@ bool CStereoOVR::endRenderTarget()
 		lensCenterX = x + (w - lensViewportShift * 0.5f) * 0.5f;
 		screenCenterX = x + w * 0.5f;
 
-		drvInternal->setUniform2f(IDriver::PixelProgram, 0, lensCenterX, lensCenterY);
+
-		drvInternal->setUniform2f(IDriver::PixelProgram, 1, screenCenterX, screenCenterY);
+		drvInternal->setUniform2f(IDriver::PixelProgram, 
+			m_PixelProgram->ovrIndices().LensCenter, 
+			lensCenterX, lensCenterY);
+
+		drvInternal->setUniform2f(IDriver::PixelProgram, 
+			m_PixelProgram->ovrIndices().ScreenCenter, 
+			screenCenterX, screenCenterY);
+
 
 		m_Driver->drawQuad(m_BarrelQuadRight, m_BarrelMat);
 

code/nel/src/3d/stereo_ovr_fp.cpp

@@ -44,7 +44,7 @@ const char *g_StereoOVR_fp40 =
 	//#var float2 cScale :  : c[2] : 3 : 1
 	//#var float2 cScaleIn :  : c[3] : 4 : 1
 	//#var float4 cHmdWarpParam :  : c[4] : 5 : 1
-	//#var sampler2D cTex0 : TEX0 : texunit 0 : 6 : 1
+	//#var sampler2D nlTex0 : TEX0 : texunit 0 : 6 : 1
 	//#var float4 oCol : $vout.COLOR : COL : 7 : 1
 	//#const c[5] = 0.25 0.5 0
 	"PARAM c[6] = { program.env[0..4],\n" // program.local->program.env!
@@ -81,6 +81,7 @@ const char *g_StereoOVR_fp40 =
 	"ENDIF;\n"
 	"END\n";
 	//# 24 instructions, 2 R-regs, 1 H-regs
+
 const char *g_StereoOVR_arbfp1 =
 	"!!ARBfp1.0\n"
 	//# cgc version 3.1.0013, build date Apr 18 2012
@@ -102,7 +103,7 @@ const char *g_StereoOVR_arbfp1 =
 	//#var float2 cScale :  : c[2] : 3 : 1
 	//#var float2 cScaleIn :  : c[3] : 4 : 1
 	//#var float4 cHmdWarpParam :  : c[4] : 5 : 1
-	//#var sampler2D cTex0 : TEX0 : texunit 0 : 6 : 1
+	//#var sampler2D nlTex0 : TEX0 : texunit 0 : 6 : 1
 	//#var float4 oCol : $vout.COLOR : COL : 7 : 1
 	//#const c[5] = 0.25 0.5 0 1
 	"PARAM c[6] = { program.env[0..4],\n"
@@ -139,6 +140,7 @@ const char *g_StereoOVR_arbfp1 =
 	"CMP result.color, -R1.x, R0, c[5].z;\n"
 	"END\n";
 	//# 28 instructions, 2 R-regs
+
 const char *g_StereoOVR_ps_2_0 =
 	"ps_2_0\n"
 	// cgc version 3.1.0013, build date Apr 18 2012
@@ -160,7 +162,7 @@ const char *g_StereoOVR_ps_2_0 =
 	//var float2 cScale :  : c[2] : 3 : 1
 	//var float2 cScaleIn :  : c[3] : 4 : 1
 	//var float4 cHmdWarpParam :  : c[4] : 5 : 1
-	//var sampler2D cTex0 : TEX0 : texunit 0 : 6 : 1
+	//var sampler2D nlTex0 : TEX0 : texunit 0 : 6 : 1
 	//var float4 oCol : $vout.COLOR : COL : 7 : 1
 	//const c[5] = -0.25 -0.5 0.25 0.5
 	//const c[6] = 1 0
@@ -199,4 +201,49 @@ const char *g_StereoOVR_ps_2_0 =
 	"texld r0, r3, s0\n"
 	"cmp r0, -r1.x, r0, c6.y\n"
 	"mov oC0, r0\n";
-}
+
+const char *g_StereoOVR_glsl330f = 
+	"#version 330\n"
+	"\n"
+	"bool _TMP2;\n"
+	"bvec2 _TMP1;\n"
+	"vec2 _TMP3;\n"
+	"uniform vec2 cLensCenter;\n"
+	"uniform vec2 cScreenCenter;\n"
+	"uniform vec2 cScale;\n"
+	"uniform vec2 cScaleIn;\n"
+	"uniform vec4 cHmdWarpParam;\n"
+	"uniform sampler2D nlTex0;\n"
+	"vec2 _TMP10;\n"
+	"vec2 _b0011;\n"
+	"vec2 _a0011;\n"
+	"in vec4 nlTexCoord0;\n"
+	"out vec4 nlCol;\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"	vec2 _theta;\n"
+	"	float _rSq;\n"
+	"	vec2 _theta1;\n"
+	"	vec2 _tc;\n"
+	"\n"
+	"	_theta = (nlTexCoord0.xy - cLensCenter)*cScaleIn;\n"
+	"	_rSq = _theta.x*_theta.x + _theta.y*_theta.y;\n"
+	"	_theta1 = _theta*(cHmdWarpParam.x + cHmdWarpParam.y*_rSq + cHmdWarpParam.z*_rSq*_rSq + cHmdWarpParam.w*_rSq*_rSq*_rSq);\n"
+	"	_tc = cLensCenter + cScale*_theta1;\n"
+	"	_a0011 = cScreenCenter - vec2( 0.25, 0.5);\n"
+	"	_b0011 = cScreenCenter + vec2( 0.25, 0.5);\n"
+	"	_TMP3 = min(_b0011, _tc);\n"
+	"	_TMP10 = max(_a0011, _TMP3);\n"
+	"	_TMP1 = bvec2(_TMP10.x == _tc.x, _TMP10.y == _tc.y);\n"
+	"	_TMP2 = _TMP1.x && _TMP1.y;\n"
+	"	if (!_TMP2) {\n"
+	"		nlCol = vec4(0, 0, 0, 0);\n"
+	"	} else {\n"
+	"		nlCol = texture(nlTex0, _tc);\n"
+	"	}\n"
+	"}\n";
+
+}
+
+/* end of file */

code/snowballs2/bin/pp_oculus_vr.cg

@@ -32,7 +32,7 @@ void pp_oculus_vr(
 	uniform float2 cScale,
 	uniform float2 cScaleIn,
 	uniform float4 cHmdWarpParam,
-	uniform sampler2D cTex0 : TEX0, 
+	uniform sampler2D nlTex0 : TEX0, 
 	
 	// Output color
 	out float4 oCol : COLOR)
@@ -49,6 +49,6 @@ void pp_oculus_vr(
 	}
     else
 	{
-		oCol = tex2D(cTex0, tc);
+		oCol = tex2D(nlTex0, tc);
 	}
 }