feat: imagespace shaders support. (#359)

* feat: imagespace shaders support.

* style: 🎨 apply clang-format changes

* chore: includes update.

* fix: removed test code erroneously disabling all imagespace shaders except ISHDR.

* fix: fixed ISSAOMinify compilation.

* fix: fixed supported imagespace shaders selection.

* style: 🎨 apply clang-format changes

* feat: ISSAOComposite shader added,

* style: 🎨 apply clang-format changes

* feat: ISSAOCameraZ added.

* style: 🎨 apply clang-format changes

* feat: ISSILComposite shader added.

* style: 🎨 apply clang-format changes

* feat: ISSnowSSS shader added.

* style: 🎨 apply clang-format changes

* feat: ISSAOBlur shader added.

* style: 🎨 apply clang-format changes

* chore: clib reset to dev.

---------

Co-authored-by: Ilya Perapechka <i_perapechka@wargaming.net>
Co-authored-by: Jonahex <Jonahex@users.noreply.github.com>

package/Shaders/ISAlphaBlend.hlsl

@@ -0,0 +1,83 @@
+#include "Common/DummyVSTexCoord.hlsl"
+
+typedef VS_OUTPUT PS_INPUT;
+
+struct PS_OUTPUT
+{
+	float4 Color : SV_Target0;
+};
+
+#if defined(PSHADER)
+SamplerState TintMask0Sampler : register(s0);
+SamplerState TintMask1Sampler : register(s1);
+SamplerState TintMask2Sampler : register(s2);
+SamplerState TintMask3Sampler : register(s3);
+SamplerState TintMask4Sampler : register(s4);
+SamplerState TintMask5Sampler : register(s5);
+SamplerState TintMask6Sampler : register(s6);
+SamplerState TintMask7Sampler : register(s7);
+SamplerState TintMask8Sampler : register(s8);
+SamplerState TintMask9Sampler : register(s9);
+SamplerState TintMask10Sampler : register(s10);
+SamplerState TintMask11Sampler : register(s11);
+SamplerState TintMask12Sampler : register(s12);
+SamplerState TintMask13Sampler : register(s13);
+SamplerState TintMask14Sampler : register(s14);
+SamplerState TintMask15Sampler : register(s15);
+
+Texture2D<float4> TintMask0Tex : register(t0);
+Texture2D<float4> TintMask1Tex : register(t1);
+Texture2D<float4> TintMask2Tex : register(t2);
+Texture2D<float4> TintMask3Tex : register(t3);
+Texture2D<float4> TintMask4Tex : register(t4);
+Texture2D<float4> TintMask5Tex : register(t5);
+Texture2D<float4> TintMask6Tex : register(t6);
+Texture2D<float4> TintMask7Tex : register(t7);
+Texture2D<float4> TintMask8Tex : register(t8);
+Texture2D<float4> TintMask9Tex : register(t9);
+Texture2D<float4> TintMask10Tex : register(t10);
+Texture2D<float4> TintMask11Tex : register(t11);
+Texture2D<float4> TintMask12Tex : register(t12);
+Texture2D<float4> TintMask13Tex : register(t13);
+Texture2D<float4> TintMask14Tex : register(t14);
+Texture2D<float4> TintMask15Tex : register(t15);
+
+cbuffer PerGeometry : register(b2)
+{
+	float4 Color[16] : packoffset(c0);
+};
+
+float3 BlendAlpha(Texture2D<float4> tintMaskTex, SamplerState tintMaskSamplerState, float2 texCoord, float4 blendColor, float3 color)
+{
+	float tintMask = tintMaskTex.Sample(tintMaskSamplerState, texCoord).x;
+	return blendColor.xyz * (1 - tintMask * blendColor.w) + (blendColor.w * tintMask) * color;
+}
+
+PS_OUTPUT main(PS_INPUT input)
+{
+	PS_OUTPUT psout;
+
+	float3 color = 0.5.xxx;
+
+	color = BlendAlpha(TintMask0Tex, TintMask0Sampler, input.TexCoord, Color[0], color);
+	color = BlendAlpha(TintMask1Tex, TintMask1Sampler, input.TexCoord, Color[1], color);
+	color = BlendAlpha(TintMask2Tex, TintMask2Sampler, input.TexCoord, Color[2], color);
+	color = BlendAlpha(TintMask3Tex, TintMask3Sampler, input.TexCoord, Color[3], color);
+	color = BlendAlpha(TintMask4Tex, TintMask4Sampler, input.TexCoord, Color[4], color);
+	color = BlendAlpha(TintMask5Tex, TintMask5Sampler, input.TexCoord, Color[5], color);
+	color = BlendAlpha(TintMask6Tex, TintMask6Sampler, input.TexCoord, Color[6], color);
+	color = BlendAlpha(TintMask7Tex, TintMask7Sampler, input.TexCoord, Color[7], color);
+	color = BlendAlpha(TintMask8Tex, TintMask8Sampler, input.TexCoord, Color[8], color);
+	color = BlendAlpha(TintMask9Tex, TintMask9Sampler, input.TexCoord, Color[9], color);
+	color = BlendAlpha(TintMask10Tex, TintMask10Sampler, input.TexCoord, Color[10], color);
+	color = BlendAlpha(TintMask11Tex, TintMask11Sampler, input.TexCoord, Color[11], color);
+	color = BlendAlpha(TintMask12Tex, TintMask12Sampler, input.TexCoord, Color[12], color);
+	color = BlendAlpha(TintMask13Tex, TintMask13Sampler, input.TexCoord, Color[13], color);
+	color = BlendAlpha(TintMask14Tex, TintMask14Sampler, input.TexCoord, Color[14], color);
+	color = BlendAlpha(TintMask15Tex, TintMask15Sampler, input.TexCoord, Color[15], color);
+
+	psout.Color = float4(color, 1);
+
+	return psout;
+}
+#endif

package/Shaders/ISApplyReflections.hlsl

@@ -0,0 +1,45 @@
+#include "Common/DummyVSTexCoord.hlsl"
+#include "Common/FrameBuffer.hlsli"
+
+typedef VS_OUTPUT PS_INPUT;
+
+struct PS_OUTPUT
+{
+	float3 Color : SV_Target0;
+};
+
+#if defined(PSHADER)
+SamplerState SSRSourceSampler : register(s0);
+SamplerState WaterMaskSampler : register(s1);
+SamplerState MainBufferSampler : register(s2);
+
+Texture2D<float4> SSRSourceTex : register(t0);
+Texture2D<float4> WaterMaskTex : register(t1);
+Texture2D<float4> MainBufferTex : register(t2);
+
+cbuffer PerGeometry : register(b2)
+{
+	float4 SSRParams : packoffset(c0);
+};
+
+PS_OUTPUT main(PS_INPUT input)
+{
+	PS_OUTPUT psout;
+
+	float2 adjustedScreenPosition = GetDynamicResolutionAdjustedScreenPosition(input.TexCoord.xy);
+
+	float2 waterMask = WaterMaskTex.SampleLevel(WaterMaskSampler, adjustedScreenPosition, 0).zw;
+	float3 mainColor = MainBufferTex.Sample(MainBufferSampler, adjustedScreenPosition).xyz;
+
+	float3 colorOffset = 0.0.xxx;
+	if (waterMask.x >= 1e-5 && waterMask.y > 1e-5) {
+		float4 ssrSourceColor = SSRSourceTex.Sample(SSRSourceSampler, adjustedScreenPosition);
+		colorOffset = clamp(SSRParams.x * (ssrSourceColor.xyz * ssrSourceColor.w),
+			0, SSRParams.y * mainColor);
+	}
+
+	psout.Color = colorOffset + mainColor;
+
+	return psout;
+}
+#endif

package/Shaders/ISBasicCopy.hlsl

@@ -0,0 +1,24 @@
+#include "Common/DummyVSTexCoord.hlsl"
+
+typedef VS_OUTPUT PS_INPUT;
+
+struct PS_OUTPUT
+{
+	float4 Color : SV_Target0;
+};
+
+#if defined(PSHADER)
+SamplerState SourceSampler : register(s0);
+
+Texture2D<float4> SourceTex : register(t0);
+
+PS_OUTPUT main(PS_INPUT input)
+{
+	PS_OUTPUT psout;
+
+	float4 srcColor = SourceTex.Sample(SourceSampler, input.TexCoord);
+	psout.Color = srcColor;
+
+	return psout;
+}
+#endif

package/Shaders/ISBlur.hlsl

@@ -0,0 +1,63 @@
+#include "Common/Color.hlsli"
+#include "Common/DummyVSTexCoord.hlsl"
+#include "Common/FrameBuffer.hlsli"
+
+typedef VS_OUTPUT PS_INPUT;
+
+struct PS_OUTPUT
+{
+	float4 Color : SV_Target0;
+};
+
+#if defined(PSHADER)
+SamplerState ImageSampler : register(s0);
+SamplerState AvgLumSampler : register(s1);
+
+Texture2D<float4> ImageTex : register(t0);
+Texture2D<float4> AvgLumTex : register(t1);
+
+cbuffer PerGeometry : register(b2)
+{
+	float4 BlurBrightPass : packoffset(c0);
+	float4 BlurScale : packoffset(c1);
+	float BlurRadius : packoffset(c2);
+	float4 BlurOffsets[16] : packoffset(c3);
+};
+
+PS_OUTPUT main(PS_INPUT input)
+{
+	PS_OUTPUT psout;
+
+	float4 color = 0.0.xxxx;
+
+	float blurRadius = BLUR_RADIUS;
+	float2 blurScale = BlurScale.zw;
+#	if BLUR_RADIUS == 0
+	blurRadius = BlurRadius;
+#	endif
+#	if BLUR_RADIUS == 0 || defined(BLUR_NON_HDR)
+	blurScale = 1.0.xx;
+#	endif
+
+	for (int blurIndex = 0; blurIndex < blurRadius; ++blurIndex) {
+		float2 screenPosition = BlurOffsets[blurIndex].xy + input.TexCoord.xy;
+		if (BlurScale.x < 0.5) {
+			screenPosition = GetDynamicResolutionAdjustedScreenPosition(screenPosition);
+		}
+		float4 imageColor = ImageTex.Sample(ImageSampler, screenPosition) * float4(blurScale.yyy, 1);
+#	if defined(BLUR_BRIGHT_PASS)
+		imageColor = BlurBrightPass.y * max(0.0.xxxx, -BlurBrightPass.x + imageColor);
+#	endif
+		color += imageColor * BlurOffsets[blurIndex].z;
+	}
+
+#	if defined(BLUR_BRIGHT_PASS)
+	float avgLum = RGBToLuminance(AvgLumTex.Sample(AvgLumSampler, input.TexCoord.xy).xyz);
+	color.w = avgLum;
+#	endif
+
+	psout.Color = color * float4(blurScale.xxx, 1);
+
+	return psout;
+}
+#endif

package/Shaders/ISCompositeLensFlareVolumetricLighting.hlsl

@@ -0,0 +1,44 @@
+#include "Common/DummyVSTexCoord.hlsl"
+#include "Common/FrameBuffer.hlsli"
+
+typedef VS_OUTPUT PS_INPUT;
+
+struct PS_OUTPUT
+{
+	float3 Color : SV_Target0;
+};
+
+#if defined(PSHADER)
+SamplerState VLSourceSampler : register(s0);
+SamplerState LFSourceSampler : register(s1);
+
+Texture2D<float4> VLSourceTex : register(t0);
+Texture2D<float4> LFSourceTex : register(t1);
+
+cbuffer PerGeometry : register(b2)
+{
+	float4 VolumetricLightingColor : packoffset(c0);
+};
+
+PS_OUTPUT main(PS_INPUT input)
+{
+	PS_OUTPUT psout;
+
+	float3 color = 0.0.xxx;
+
+#	if defined(VOLUMETRIC_LIGHTING)
+	float2 screenPosition = GetDynamicResolutionAdjustedScreenPosition(input.TexCoord);
+	float volumetricLightingPower = VLSourceTex.Sample(VLSourceSampler, screenPosition).x;
+	color += VolumetricLightingColor.xyz * volumetricLightingPower;
+#	endif
+
+#	if defined(LENS_FLARE)
+	float3 lensFlareColor = LFSourceTex.Sample(LFSourceSampler, input.TexCoord).xyz;
+	color += lensFlareColor;
+#	endif
+
+	psout.Color = color;
+
+	return psout;
+}
+#endif

package/Shaders/ISCopy.hlsl

@@ -0,0 +1,45 @@
+#include "Common/DummyVSTexCoord.hlsl"
+#include "Common/FrameBuffer.hlsli"
+
+typedef VS_OUTPUT PS_INPUT;
+
+struct PS_OUTPUT
+{
+	float4 Color : SV_Target0;
+};
+
+#if defined(PSHADER)
+SamplerState ImageSampler : register(s0);
+
+Texture2D<float4> ImageTex : register(t0);
+
+cbuffer PerGeometry : register(b2)
+{
+	float4 RotationMatrix : packoffset(c0);
+	float4 ColorSelect : packoffset(c1);
+	float4 ScaleBias : packoffset(c2);
+};
+
+PS_OUTPUT main(PS_INPUT input)
+{
+	PS_OUTPUT psout;
+
+#	if !defined(DYNAMIC_FETCH_DISABLED)
+	float2 screenPosition = GetDynamicResolutionAdjustedScreenPosition(input.TexCoord);
+#	else
+	float2 screenPosition = input.TexCoord;
+#	endif
+
+	float4 color = ImageTex.Sample(ImageSampler, screenPosition);
+
+#	if defined(GRAY_SCALE)
+	color = float4(dot(color, ColorSelect).xxx, color.w);
+#	elif defined(TEXTURE_MASK)
+	color.w = 1 - color.x;
+#	endif
+
+	psout.Color = color;
+
+	return psout;
+}
+#endif

package/Shaders/ISDebugSnow.hlsl

@@ -0,0 +1,28 @@
+#include "Common/DummyVSTexCoord.hlsl"
+
+typedef VS_OUTPUT PS_INPUT;
+
+struct PS_OUTPUT
+{
+	float4 Color : SV_Target0;
+};
+
+#if defined(PSHADER)
+SamplerState snowAlphaSpecSampler : register(s0);
+SamplerState sceneSampler : register(s1);
+
+Texture2D<float4> snowAlphaSpecTex : register(t0);
+Texture2D<float4> sceneTex : register(t1);
+
+PS_OUTPUT main(PS_INPUT input)
+{
+	PS_OUTPUT psout;
+
+	float snowAlphaSpec = snowAlphaSpecTex.Sample(snowAlphaSpecSampler, input.TexCoord).y;
+	float4 sceneColor = sceneTex.Sample(sceneSampler, input.TexCoord);
+
+	psout.Color = sceneColor + float4(snowAlphaSpec, 0, 0, 1);
+
+	return psout;
+}
+#endif