bool ANGLEWebKitBridge::getUniforms(ShShaderType shaderType, Vector<ANGLEShaderSymbol> &symbols)
{
const ShHandle compiler = (shaderType == SH_VERTEX_SHADER ? m_vertexCompiler : m_fragmentCompiler);
int numUniforms = getValidationResultValue(compiler, SH_ACTIVE_UNIFORMS);
if (numUniforms < 0)
return false;
if (!numUniforms)
return true;
int maxNameLength = getValidationResultValue(compiler, SH_ACTIVE_UNIFORM_MAX_LENGTH);
if (maxNameLength <= 1)
return false;
OwnArrayPtr<char> nameBuffer = adoptArrayPtr(new char[maxNameLength]);
for (int i = 0; i < numUniforms; ++i) {
ANGLEShaderSymbol symbol;
symbol.symbolType = SHADER_SYMBOL_TYPE_UNIFORM;
int nameLength = -1;
ShGetActiveUniform(compiler, i, &nameLength, &symbol.size, &symbol.dataType, nameBuffer.get(), 0);
if (nameLength <= 0)
return false;
symbol.name = String::fromUTF8(nameBuffer.get(), nameLength);
symbols.append(symbol);
}
return true;
}
void PrintActiveVariables(ShHandle compiler, ShShaderInfo varType, bool mapLongVariableNames)
{
int nameSize = 0;
switch (varType) {
case SH_ACTIVE_ATTRIBUTES:
ShGetInfo(compiler, SH_ACTIVE_ATTRIBUTE_MAX_LENGTH, &nameSize);
break;
case SH_ACTIVE_UNIFORMS:
ShGetInfo(compiler, SH_ACTIVE_UNIFORM_MAX_LENGTH, &nameSize);
break;
default:
assert(0);
}
if (nameSize <= 1) return;
char* name = new char[nameSize];
char* mappedName = NULL;
if (mapLongVariableNames) {
int mappedNameSize = 0;
ShGetInfo(compiler, SH_MAPPED_NAME_MAX_LENGTH, &mappedNameSize);
mappedName = new char[mappedNameSize];
}
int activeVars = 0, size = 0;
ShDataType type = SH_NONE;
const char* typeName = NULL;
ShGetInfo(compiler, varType, &activeVars);
for (int i = 0; i < activeVars; ++i) {
switch (varType) {
case SH_ACTIVE_ATTRIBUTES:
ShGetActiveAttrib(compiler, i, NULL, &size, &type, name, mappedName);
break;
case SH_ACTIVE_UNIFORMS:
ShGetActiveUniform(compiler, i, NULL, &size, &type, name, mappedName);
break;
default:
assert(0);
}
switch (type) {
case SH_FLOAT:
typeName = "GL_FLOAT";
break;
case SH_FLOAT_VEC2:
typeName = "GL_FLOAT_VEC2";
break;
case SH_FLOAT_VEC3:
typeName = "GL_FLOAT_VEC3";
break;
case SH_FLOAT_VEC4:
typeName = "GL_FLOAT_VEC4";
break;
case SH_INT:
typeName = "GL_INT";
break;
case SH_INT_VEC2:
typeName = "GL_INT_VEC2";
break;
case SH_INT_VEC3:
typeName = "GL_INT_VEC3";
break;
case SH_INT_VEC4:
typeName = "GL_INT_VEC4";
break;
case SH_BOOL:
typeName = "GL_BOOL";
break;
case SH_BOOL_VEC2:
typeName = "GL_BOOL_VEC2";
break;
case SH_BOOL_VEC3:
typeName = "GL_BOOL_VEC3";
break;
case SH_BOOL_VEC4:
typeName = "GL_BOOL_VEC4";
break;
case SH_FLOAT_MAT2:
typeName = "GL_FLOAT_MAT2";
break;
case SH_FLOAT_MAT3:
typeName = "GL_FLOAT_MAT3";
break;
case SH_FLOAT_MAT4:
typeName = "GL_FLOAT_MAT4";
break;
case SH_SAMPLER_2D:
typeName = "GL_SAMPLER_2D";
break;
case SH_SAMPLER_CUBE:
typeName = "GL_SAMPLER_CUBE";
break;
case SH_SAMPLER_EXTERNAL_OES:
typeName = "GL_SAMPLER_EXTERNAL_OES";
break;
default:
assert(0);
}
printf("%d: name:%s type:%s size:%d", i, name, typeName, size);
if (mapLongVariableNames)
printf(" mapped name:%s", mappedName);
printf("\n");
}
delete [] name;
if (mappedName)
delete [] mappedName;
}
