//setup the ID based setters / getters
public override void AddSetAttribute(IShaderDom shader, Action <CodeStatement> add, Type type)
{
//samplers first
if (type == typeof(Xen.Graphics.State.TextureSamplerState))
{
foreach (SharedSampler ss in allSamplers.Values)
{
//assign the sampler, if it matches.
CodeExpression uid = new CodeFieldReferenceExpression(shader.ShaderClassEx, "sid" + ss.Index);
CodeExpression sampler = new CodePropertyReferenceExpression(shader.Instance, Common.ToUpper(ss.SamplerDetails.Name));
CodeExpression assignIdsMatch =
new CodeBinaryOperatorExpression(shader.AttributeAssignId, CodeBinaryOperatorType.IdentityEquality, uid);
CodeStatement assignAttribute = new CodeAssignStatement(sampler, shader.AttributeAssignValue);
CodeConditionStatement performAssign =
new CodeConditionStatement(assignIdsMatch,
assignAttribute, //call the assignment code
new CodeMethodReturnStatement(new CodePrimitiveExpression(true))); //return true, set correctly.
add(performAssign);
}
}
if (!typeof(Microsoft.Xna.Framework.Graphics.Texture).IsAssignableFrom(type))
{
return;
}
//now, all the non-global textures
for (int i = 0; i < textures.Length; i++)
{
TextureAssociation tex = textures[i];
if ((tex.PsSamplers.Count > 0 || tex.VsSamplers.Count > 0) &&
tex.IsGlobal == false)
{
if (Common.GetTextureType(tex.Texture.Type) == type)
{
//assign
CodeExpression uid = new CodeFieldReferenceExpression(shader.ShaderClassEx, "tid" + i);
CodeExpression sampler = new CodePropertyReferenceExpression(shader.Instance, Common.ToUpper(tex.Texture.Name));
CodeExpression assignIdsMatch =
new CodeBinaryOperatorExpression(shader.AttributeAssignId, CodeBinaryOperatorType.IdentityEquality, uid);
CodeStatement assignAttribute = new CodeAssignStatement(sampler, shader.AttributeAssignValue);
CodeConditionStatement performAssign =
new CodeConditionStatement(assignIdsMatch,
assignAttribute, //call the assignment code
new CodeMethodReturnStatement(new CodePrimitiveExpression(true))); //return true, set correctly.
add(performAssign);
}
}
}
}
private void GenerateNameIds(IShaderDom shader, Action <CodeTypeMember, string> add)
{
//each texture / sampler needs to be settable by ID
foreach (SharedSampler ss in allSamplers.Values)
{
//create a uid for the sampler
CodeMemberField field = new CodeMemberField(typeof(int), "sid" + ss.Index);
field.Attributes = MemberAttributes.Private | MemberAttributes.Family | MemberAttributes.Static;
add(field, string.Format("Name uid for sampler for '{0} {1}'", Common.ToUpper(ss.SamplerDetails.Type), ss.SamplerDetails.Name));
}
//create for each texture
for (int i = 0; i < textures.Length; i++)
{
TextureAssociation tex = textures[i];
if (tex.PsSamplers.Count > 0 || tex.VsSamplers.Count > 0)
{
//create a uid for the sampler
CodeMemberField field = new CodeMemberField(typeof(int), "tid" + i);
field.Attributes = MemberAttributes.Private | MemberAttributes.Family | MemberAttributes.Static;
add(field, string.Format("Name uid for texture for '{0} {1}'", tex.Texture.Type, tex.Texture.Name));
}
}
}
public override void AddMembers(IShaderDom shader, Action <CodeTypeMember, string> add, Platform platform)
{
if (platform != Platform.Both)
{
return;
}
//if samplers are used, a integer is stored which will use bit masking
//each bit represents if the sampler is dirty
if (psSamplers.Count > 0)
{
//create mask
CodeMemberField field = new CodeMemberField(typeof(int), "psm");
field.Attributes = MemberAttributes.Private | MemberAttributes.Final;
add(field, "Pixel Sampler dirty state bitmask");
}
if (vsSamplers.Count > 0)
{
//create mask
CodeMemberField field = new CodeMemberField(typeof(int), "vsm");
field.Attributes = MemberAttributes.Private | MemberAttributes.Final;
add(field, "Vertex Sampler dirty state bitmask");
}
//add the sampler members
foreach (SharedSampler ss in allSamplers.Values)
{
CodeMemberField field = new CodeMemberField(typeof(Xen.Graphics.State.TextureSamplerState), "ts" + ss.Index);
field.Attributes = MemberAttributes.Private | MemberAttributes.Family;
add(field, string.Format("Sampler state for '{0} {1}'", Common.ToUpper(ss.SamplerDetails.Type), ss.SamplerDetails.Name));
}
//add the texture members
for (int i = 0; i < textures.Length; i++)
{
TextureAssociation tex = textures[i];
if (tex.PsSamplers.Count > 0 || tex.VsSamplers.Count > 0) //only add if they are used
{
CodeMemberField field = new CodeMemberField(Common.GetTextureType(tex.Texture.Type), "tx" + i);
field.Attributes = MemberAttributes.Private | MemberAttributes.Family;
add(field, string.Format("Bound texture for '{0} {1}'", tex.Texture.Type, tex.Texture.Name));
}
}
//create the properties for the sampler states
GenerateProperties(shader, add);
GenerateNameIds(shader, add);
}
public override void AddStaticGraphicsInit(IShaderDom shader, Action <CodeStatement, string> add)
{
//initalise the static UIDs
foreach (SharedSampler ss in allSamplers.Values)
{
//set the uid for the sampler
CodeExpression uid = new CodeFieldReferenceExpression(shader.ShaderClassEx, "sid" + ss.Index);
CodeExpression call = new CodeMethodInvokeExpression(
new CodeMethodReferenceExpression(shader.ShaderSystemRef, "GetNameUniqueID"),
new CodePrimitiveExpression(ss.SamplerDetails.Name));
CodeStatement assign = new CodeAssignStatement(uid, call);
add(assign, null);
}
//and all the textures
for (int i = 0; i < textures.Length; i++)
{
TextureAssociation tex = textures[i];
if (tex.PsSamplers.Count > 0 || tex.VsSamplers.Count > 0)
{
//set the uid for the sampler
CodeExpression uid = new CodeFieldReferenceExpression(shader.ShaderClassEx, "tid" + i);
CodeExpression call = new CodeMethodInvokeExpression(
new CodeMethodReferenceExpression(shader.ShaderSystemRef, "GetNameUniqueID"),
new CodePrimitiveExpression(tex.Texture.Name));
if (tex.IsGlobal)
{
//slightly differnet for globals. Need to call generic getter for the global index
call = new CodeMethodInvokeExpression(
new CodeMethodReferenceExpression(shader.ShaderSystemRef, "GetGlobalUniqueID", new CodeTypeReference(Common.GetTextureType(tex.Texture.Type))),
new CodePrimitiveExpression(tex.Texture.Name));
}
CodeStatement assign = new CodeAssignStatement(uid, call);
add(assign, null);
}
}
}
public ShaderTextures(SourceShader source, string techniqueName, Platform platform)
{
this.psSamplers = new List <Register>();
this.vsSamplers = new List <Register>();
this.allSamplers = new Dictionary <string, SharedSampler>();
AsmTechnique technique = source.GetAsmTechnique(techniqueName, platform);
TechniqueExtraData extras = technique.TechniqueExtraData;
//pull out the textures that will be used
textures = new TextureAssociation[extras.TechniqueTextures.Length];
for (int i = 0; i < extras.TechniqueTextures.Length; i++)
{
textures[i] = new TextureAssociation(extras.TechniqueTextures[i]);
}
//now do the samplers
RegisterSet set = technique.PixelShader.RegisterSet;
//pixel first
foreach (Register reg in set)
{
if (reg.Category == RegisterCategory.Sampler)
{
psSamplers.Add(reg);
int textureIndex = extras.PixelSamplerTextureIndex[reg.Index];
if (textureIndex == -1)
{
ThrowSamplerNoTextureException(reg);
}
textures[textureIndex].PsSamplers.Add(reg.Index);
//add the sampler to 'allSamplers'
SharedSampler ss = new SharedSampler();
ss.PsIndex = reg.Index;
ss.SamplerDetails = reg;
ss.Index = allSamplers.Count;
ss.DefaultState = extras.PixelSamplerStates[reg.Index];
allSamplers.Add(reg.Name, ss);
}
}
set = technique.VertexShader.RegisterSet;
//now vertex
foreach (Register reg in set)
{
if (reg.Category == RegisterCategory.Sampler)
{
vsSamplers.Add(reg);
int textureIndex = extras.VertexSamplerTextureIndex[reg.Index];
if (textureIndex == -1)
{
ThrowSamplerNoTextureException(reg);
}
textures[textureIndex].VsSamplers.Add(reg.Index);
//add the sampler to 'allSamplers'
SharedSampler ss;
if (!allSamplers.TryGetValue(reg.Name, out ss))
{
ss = new SharedSampler();
ss.SamplerDetails = reg;
ss.Index = allSamplers.Count;
ss.DefaultState = extras.VertexSamplerStates[reg.Index];
allSamplers.Add(reg.Name, ss);
}
ss.VsIndex = reg.Index;
}
}
}
private void GenerateProperties(IShaderDom shader, Action <CodeTypeMember, string> add)
{
foreach (SharedSampler ss in allSamplers.Values)
{
//simlar in style to:
/*
*
* public Xen.Graphics.State.TextureSamplerState ShadowSampler
* {
* get
* {
* return this.ps_0;
* }
* set
* {
* if ((value != this.ps_0))
* {
* this.ps_0 = value;
* this.ps_m = (this.ps_m | 1);
* }
* }
* }
*
*/
CodeExpression current = new CodeFieldReferenceExpression(shader.Instance, "ts" + ss.Index);
CodeExpression value = new CodePropertySetValueReferenceExpression();
CodeExpression psm = new CodeFieldReferenceExpression(shader.Instance, "psm");
CodeExpression vsm = new CodeFieldReferenceExpression(shader.Instance, "vsm");
CodeMemberProperty prop = new CodeMemberProperty();
prop.Type = new CodeTypeReference(typeof(Xen.Graphics.State.TextureSamplerState));
prop.Attributes = MemberAttributes.Public | MemberAttributes.Final;
prop.Name = Common.ToUpper(ss.SamplerDetails.Name);
prop.HasGet = true;
prop.HasSet = true;
prop.GetStatements.Add(new CodeMethodReturnStatement(current));
//has changed?
CodeBinaryOperatorExpression changed = new CodeBinaryOperatorExpression(current, CodeBinaryOperatorType.IdentityInequality, value);
//changes..
//3 if sampler is used by both PS and VS. 2 otherwise.
CodeStatement[] updateOp = new CodeStatement[1 + (ss.PsIndex != -1 ? 1 : 0) + (ss.VsIndex != -1 ? 1 : 0)];
if (ss.PsIndex != -1) //update the ps mask
{
updateOp[0] = new CodeAssignStatement(psm, new CodeBinaryOperatorExpression(psm, CodeBinaryOperatorType.BitwiseOr, new CodePrimitiveExpression(1 << ss.PsIndex)));
}
if (ss.VsIndex != -1) //update the vs mask
{
updateOp[updateOp.Length - 2] = new CodeAssignStatement(vsm, new CodeBinaryOperatorExpression(vsm, CodeBinaryOperatorType.BitwiseOr, new CodePrimitiveExpression(1 << ss.VsIndex)));
}
//finally, assign the sampler
updateOp[updateOp.Length - 1] = new CodeAssignStatement(current, value);
//pull it all together
prop.SetStatements.Add(new CodeConditionStatement(changed, updateOp));
add(prop, string.Format("Get/Set the Texture Sampler State for '{0} {1}'", Common.ToUpper(ss.SamplerDetails.Type), ss.SamplerDetails.Name));
}
//add the texture properties
for (int i = 0; i < textures.Length; i++)
{
TextureAssociation tex = textures[i];
//only add if they are used
if (tex.PsSamplers.Count > 0 || tex.VsSamplers.Count > 0)
{
//create the property,
//very similar to the sampler property.
CodeExpression current = new CodeFieldReferenceExpression(shader.Instance, "tx" + i);
CodeExpression value = new CodePropertySetValueReferenceExpression();
CodeExpression psm = new CodeFieldReferenceExpression(shader.Instance, "psm");
CodeExpression vsm = new CodeFieldReferenceExpression(shader.Instance, "vsm");
CodeMemberProperty prop = new CodeMemberProperty();
prop.Type = new CodeTypeReference(Common.GetTextureType(tex.Texture.Type));
prop.Attributes = MemberAttributes.Public | MemberAttributes.Final;
if (tex.IsGlobal) //make the property private if it's global
{
prop.Attributes = MemberAttributes.Private | MemberAttributes.Final;
}
prop.Name = Common.ToUpper(tex.Texture.Name);
prop.HasGet = true;
prop.HasSet = true;
prop.GetStatements.Add(new CodeMethodReturnStatement(current));
//has changed?
CodeBinaryOperatorExpression changed = new CodeBinaryOperatorExpression(current, CodeBinaryOperatorType.IdentityInequality, value);
//changes.. (similar to sampler property)
CodeStatement[] updateOp = new CodeStatement[1 + tex.PsSamplers.Count + tex.VsSamplers.Count];
int update = 0;
for (int n = 0; n < tex.PsSamplers.Count; n++)
{
updateOp[update++] = new CodeAssignStatement(psm, new CodeBinaryOperatorExpression(psm, CodeBinaryOperatorType.BitwiseOr, new CodePrimitiveExpression(1 << tex.PsSamplers[n])));
}
for (int n = 0; n < tex.VsSamplers.Count; n++)
{
updateOp[update++] = new CodeAssignStatement(vsm, new CodeBinaryOperatorExpression(vsm, CodeBinaryOperatorType.BitwiseOr, new CodePrimitiveExpression(1 << tex.VsSamplers[n])));
}
//finally, assign the sampler
updateOp[updateOp.Length - 1] = new CodeAssignStatement(current, value);
//pull it all together
prop.SetStatements.Add(new CodeConditionStatement(changed, updateOp));
add(prop, string.Format("Get/Set the Bound texture for '{0} {1}'", tex.Texture.Type, tex.Texture.Name));
}
}
}
public ShaderTextures(SourceShader source, string techniqueName, Platform platform)
{
this.psSamplers = new List<Register>();
this.vsSamplers = new List<Register>();
this.allSamplers = new Dictionary<string, SharedSampler>();
AsmTechnique technique = source.GetAsmTechnique(techniqueName, platform);
TechniqueExtraData extras = technique.TechniqueExtraData;
//pull out the textures that will be used
textures = new TextureAssociation[extras.TechniqueTextures.Length];
for (int i = 0; i < extras.TechniqueTextures.Length; i++)
textures[i] = new TextureAssociation(extras.TechniqueTextures[i]);
//now do the samplers
RegisterSet set = technique.PixelShader.RegisterSet;
//pixel first
foreach (Register reg in set)
{
if (reg.Category == RegisterCategory.Sampler)
{
psSamplers.Add(reg);
int textureIndex = extras.PixelSamplerTextureIndex[reg.Index];
if (textureIndex == -1)
ThrowSamplerNoTextureException(reg);
textures[textureIndex].PsSamplers.Add(reg.Index);
//add the sampler to 'allSamplers'
SharedSampler ss = new SharedSampler();
ss.PsIndex = reg.Index;
ss.SamplerDetails = reg;
ss.Index = allSamplers.Count;
ss.DefaultState = extras.PixelSamplerStates[reg.Index];
allSamplers.Add(reg.Name, ss);
}
}
set = technique.VertexShader.RegisterSet;
//now vertex
foreach (Register reg in set)
{
if (reg.Category == RegisterCategory.Sampler)
{
vsSamplers.Add(reg);
int textureIndex = extras.VertexSamplerTextureIndex[reg.Index];
if (textureIndex == -1)
ThrowSamplerNoTextureException(reg);
textures[textureIndex].VsSamplers.Add(reg.Index);
//add the sampler to 'allSamplers'
SharedSampler ss;
if (!allSamplers.TryGetValue(reg.Name, out ss))
{
ss = new SharedSampler();
ss.SamplerDetails = reg;
ss.Index = allSamplers.Count;
ss.DefaultState = extras.VertexSamplerStates[reg.Index];
allSamplers.Add(reg.Name, ss);
}
ss.VsIndex = reg.Index;
}
}
}