DOA6: Add bone debug visualisation shader

This adds a visualisation debug shader to show the transformation of the
bones in a given draw call, and can be used with something like this:

    [TextureOverrideBody]
    hash = 797e7cc8
    if ps !== -0.0
    	$\debug_bones\first = 0
    	$\debug_bones\last = 72
    	run = CustomShader\debug_bones\VisualiseBones
    endif

    [TextureOverrideBoots]
    hash = 0cafc908
    if ps !== -0.0
    	$\debug_bones\first = 0
    	$\debug_bones\last = 27
    	run = CustomShader\debug_bones\VisualiseBones
    endif

Note that the visualisation is not intuitive - the dots representing the
bones are not positioned where you would naively expect. They actually
show how far from the origin any region of mesh would be moved, but they
are relative to the origin, while the mesh is relative to the mesh.

DOA6/ShaderFixes/debug_bones.hlsl

@@ -0,0 +1,67 @@
+#define colour IniParams[0]
+#define first IniParams[1].x
+static const float size = 0.004;
+
+Texture1D<float4> IniParams : register(t120);
+Texture2D<float4> StereoParams : register(t121);
+
+struct vs2gs {
+	float4 pos : SV_Position;
+	float node_idx_percent : TEXCOORD;
+};
+
+struct gs2ps {
+	float4 pos : SV_Position0;
+	float node_idx_percent : TEXCOORD;
+};
+
+#ifdef VERTEX_SHADER
+cbuffer Globals : register(b0)
+{
+  row_major float4x4 mW2P;           // Index:    0 1 2 3          Components:    16
+  float4x3 mL2W[128];                  // Index:    4-387            Components:  1536
+  bool bSkin[3];                     // Index:  388-390.x          Components:     9
+  row_major float4x4 mW2Pt;          // Index:  391 392 393 394    Components:    16
+  row_major float4x4 mW2S[4];        // Index:  395-410            Components:    64
+}
+
+void main(uint id : SV_VertexID, out vs2gs output)
+{
+	float4 pos = float4(0,0,0,1);
+
+	output.node_idx_percent = (float)id / 128;
+	output.pos = mul(float4(mul(pos, mL2W[first + id]), 1), mW2P);
+	// Running with no depth buffer assigned so driver won't have stereo corrected:
+	//float4 stereo = StereoParams.Load(0);
+	//output.pos.x += stereo.x * (output.pos.w - stereo.y);
+}
+#endif
+
+#ifdef GEOMETRY_SHADER
+[maxvertexcount(6)]
+void main(point vs2gs input[1], inout TriangleStream<gs2ps> ostream)
+{
+	gs2ps output;
+
+	output.node_idx_percent = input[0].node_idx_percent;
+	if (input[0].pos.w) {
+		output.pos = float4(input[0].pos) + float4(-size, -size, 0, 0) * input[0].pos.w;
+		ostream.Append(output);
+		output.pos = float4(input[0].pos) + float4(+size, -size, 0, 0) * input[0].pos.w;
+		ostream.Append(output);
+		output.pos = float4(input[0].pos) + float4(-size, +size, 0, 0) * input[0].pos.w;
+		ostream.Append(output);
+		output.pos = float4(input[0].pos) + float4(+size, +size, 0, 0) * input[0].pos.w;
+		ostream.Append(output);
+	}
+}
+#endif
+
+#ifdef PIXEL_SHADER
+void main(gs2ps input, out float4 o0 : SV_Target0, out float depth : SV_Depth)
+{
+	o0 = colour; // * (0.05 + input.node_idx_percent * 0.95);
+	// Set output depth to 1 so nothing else will clobber this on the render target
+	depth = 1;
+}
+#endif

DOA6/ShaderFixes/debug_bones.ini

@@ -0,0 +1,47 @@
+namespace = debug_bones
+
+[Constants]
+global $iteration = 0
+global $first = 0
+global $last = 128
+
+[Present]
+$iteration = 0
+
+[CustomShaderVisualiseBones]
+;max_executions_per_frame = 6
+vs = debug_bones.hlsl
+gs = debug_bones.hlsl
+ps = debug_bones.hlsl
+topology = point_list
+;oD = null
+local $bak_x = x
+local $bak_y = y
+local $bak_z = z
+local $bak_w = w
+local $bak_x1 = x1
+
+; Colour:
+x = 0
+y = 0
+z = 0
+w = 1
+x1 = $first
+if $iteration % 3 == 0
+	x = 0.25
+elif $iteration % 3 == 1
+	y = 0.25
+elif $iteration % 3 == 2
+	z = 0.25
+endif
+$iteration = $iteration + 1
+blend = ADD ONE ONE
+
+if $last >= $first
+	draw = $last - $first + 1, 0
+endif
+x = $bak_x
+y = $bak_y
+z = $bak_z
+w = $bak_w
+x1 = $bak_x1

DOA6/d3dx.ini

@@ -22,6 +22,7 @@ include = ShaderFixes\inverse-cs.ini
 ;include = ShaderFixes\debug_cube.ini
 ;include = ShaderFixes\debug_cb.ini
 ;include = ShaderFixes\debug_soft_body.ini
+;include = ShaderFixes\debug_bones.ini
 
 ; Uncomment to enable a custom shader that allows the stereo output mode to be
 ; upscaled. NOTE: uncomment only if 'upscaling' and resolution are not zero in