bool DetectProfile()
{
AsmCommand command = listing.GetCommand(0);
for (int i = 0; i < VSprofiles.Length; i++)
{
if (VSprofiles[i] == command.Target)
{
profile = VSprofileValues[i];
return(true);
}
}
for (int i = 0; i < PSprofiles.Length; i++)
{
if (PSprofiles[i] == command.Target)
{
profile = PSprofileValues[i];
return(true);
}
}
return(false);
}
public AsmToHlslAsmConverter(AsmListing asmSource, Microsoft.Xna.Framework.TargetPlatform platform, int shaderMaxConstants, int shaderMaxBooleanConstants, bool throwOnError)
{
maxConstant = -1;
if (shaderMaxConstants != 0)
{
maxConstant = shaderMaxConstants;
}
maxBoolean = -1;
if (shaderMaxBooleanConstants != 0)
{
maxBoolean = shaderMaxBooleanConstants;
}
maxRegister = -1;
this.samplers = new List <InputOutput>();
this.inputs = new List <InputOutput>();
this.outputs = new List <InputOutput>();
this.assignedConstants = new Dictionary <int, bool>();
this.localConstants = new Dictionary <int, string>();
this.localBooleanConstants = new Dictionary <int, string>();
this.localIntegerConstants = new Dictionary <int, string>();
for (int i = 0; i < 256; i++)
{
assignedConstants.Add(i, false);
}
this.source = new StringBuilder();
this.listing = asmSource;
if (listing.GetCommandCount() > 0)
{
//attempt to decode the shader
if (DetectProfile())
{
List <Command> commands = new List <Command>();
for (int i = 1; i < listing.GetCommandCount(); i++)
{
//extract the commands
Command cmd = new Command(listing.GetCommand(i));
if (cmd.name != null)
{
commands.Add(cmd);
}
}
List <Command> allCommands = new List <Command>();
List <Command> newCommands = new List <Command>();
foreach (Command command in commands)
{
newCommands.Clear();
GenerateCode(command, newCommands);
allCommands.AddRange(newCommands);
}
commands = allCommands;
bool isAsm = false;
foreach (Command cmd in commands)
{
if (cmd.isAsm != isAsm)
{
if (isAsm)
{
this.source.Append("};");
this.source.AppendLine();
}
else
{
this.source.Append("asm{");
this.source.AppendLine();
}
isAsm = cmd.isAsm;
}
this.source.Append(cmd.name);
for (int i = 0; i < cmd.args.Length; i++)
{
this.source.Append(' ');
if (i != 0)
{
this.source.Append(',');
}
for (int a = 0; a < cmd.args[i].Length; a++)
{
this.source.Append(cmd.args[i][a]);
}
}
this.source.AppendLine();
}
if (isAsm)
{
this.source.Append("};");
}
}
}
BuildMethod();
CompiledShader shader =
ShaderCompiler.CompileFromSource(
this.source.ToString(),
null, null, CompilerOptions.AvoidFlowControl, "Main",
profile, platform);
if (throwOnError && !shader.Success)
{
Common.ThrowError("An error occured running the Xbox shader HLSL/ASM preprocessor", shader.ErrorsAndWarnings, asmSource.ToString());
}
if (!shader.Success)
{
//tried the best.. if it failed, ohh well, go back to AssembleFromSource
//probably used complex flow control?
string rawAsm = asmSource.ToString();
shader = ShaderCompiler.AssembleFromSource(rawAsm, null, null, CompilerOptions.None, platform);
if (!shader.Success)
{
Common.ThrowError(shader.ErrorsAndWarnings, rawAsm);
}
}
output = shader.GetShaderCode();
}