void glslShader::Load(Loader &input)
{
char token[MAX_INPUT_LENGTH];
do
{
input.ReadToken(token);
if (strcmp(token, "vertexshader") == 0)
{
char tmp[256];
if (!input.ReadToken(tmp))
input.Error("Couldn't find vertex shader name after vertexShader token in glslShader");
else
sprintf(vertexShaderName, "%s", tmp);
}
else if (strcmp(token, "fragmentshader") == 0)
{
char tmp[256];
if (!input.ReadToken(tmp))
input.Error("Couldn't find fragment shader name after vertexShader token in glslShader");
else
sprintf(fragmentShaderName, "%s", tmp);
}
else if (strcmp(token, "uniform") == 0)
{
input.ReadToken(uniformParamNames[nUniforms], true, false); // This token should be upper & lower case
nUniformComponents[nUniforms] = 0;
for (int i = 0; i < 4; i++)
{
if (!input.ReadFloat(uniformParamValues[nUniforms][i]))
{
if (i == 0)
input.Error("Incomplete uniform parameter %s\n", uniformParamNames[nUniforms]);
break;
}
else
nUniformComponents[nUniforms]++;
}
nUniforms++;
}
else if (strncmp(token, "end", 3) != 0)
input.Error(token, "Unrecognized glslShader shader command: %s", token);
} while (strncmp(token, "end", 3) != 0);
}
void sphere::Read(Loader &input)
{
char token[MAX_INPUT_LENGTH];
bool moreTokens;
do
{
// We need to "peek" because if the token isn't giving us one
// of the sphere properties, then it is a shape attribute like
// color and if we've already read it out of the file, the shape
// class would not be able to read the attribute afterwords.
// So we "peek" at the token which does not remove it from the
// file stream. For more information, see the "PeekTokens"
// method defined in the Loader class
input.PeekTokens(token, 1);
moreTokens = true;
if (strcmp(token, "center") == 0)
{
input.ReadToken(token);
for (int i = 0; i < 3; i++)
if (!input.ReadFloat(center[i]))
input.Error("Not enough parameters for sphere's center in sphere '%s'", objectName);
}
else if (strcmp(token, "radius") == 0)
{
input.ReadToken(token);
if (!input.ReadFloat(radius))
input.Error("Error reading radius in sphere '%s'", objectName);
}
else if (strcmp(token, "resolution") == 0)
{
input.ReadToken(token);
if (!input.ReadInt(resolution))
input.Error("Error reading resolution in sphere '%s'", objectName);
}
else
moreTokens = false; // If we don't recognize it jump out ... it is an attribute
} while (moreTokens);
SetupShape();
}
void cone::Read(Loader &input)
{
char token[MAX_INPUT_LENGTH];
bool moreTokens;
do
{
input.PeekTokens(token, 1);
moreTokens = true;
if (strcmp(token, "base") == 0)
{
input.ReadToken(token);
for (int i = 0; i < 3; i++)
if (!input.ReadFloat(base[i]))
input.Error("Not enough parameters for cone's base in cone '%s'", objectName);
}
else if (strcmp(token, "radius") == 0)
{
input.ReadToken(token);
if (!input.ReadFloat(radius))
input.Error("Error reading radius in cone '%s'", objectName);
}
else if (strcmp(token, "height") == 0)
{
input.ReadToken(token);
if (!input.ReadFloat(height))
input.Error("Error reading height in cone '%s'", objectName);
}
else if (strcmp(token, "axis") == 0)
{
input.ReadToken(token);
if (!input.ReadInt(axis))
input.Error("Error reading axis number in cone '%s'", objectName);
}
else if (strcmp(token, "capped") == 0)
{
input.ReadToken(token);
if (!input.ReadBool(capped))
input.Error("Error reading height in cone '%s'", objectName);
}
else if (strcmp(token, "resolution") == 0)
{
input.ReadToken(token);
if (!input.ReadInt(resolution))
input.Error("Error reading resolution in cone '%s'", objectName);
}
else
moreTokens = false; // If we don't recognize it jump out ... it is an attribute
} while (moreTokens);
SetupShape();
}
void simpleTextureShader::Load(Loader &input)
{
char token[MAX_INPUT_LENGTH];
char tmp[MAX_INPUT_LENGTH];
uvTransform = matrix::Identity(4); // 4x4 identity matrix
do
{
input.ReadToken(token);
if (strncmp(token, "texture", 3) == 0)
{
tex = texture::LoadTexture(input);
if (tex == NULL)
input.Error("Unrecognized texture type in simpleTextureShader");
}
else if (strcmp(token, "transform") == 0)
{
matrix m(4, 4, 1.0);
input.ReadToken(tmp);
if (!strcmp(tmp, "translate"))
{
float x[3];
for (int i = 0; i < 3; i++)
if (!input.ReadFloat(x[i]))
input.Error("Incomplete translation information for texture");
m.MakeTranslation(x[0], x[1], x[2]);
uvTransform = m * uvTransform;
}
else if (!strcmp(tmp, "scale"))
{
float x[3];
for (int i = 0; i < 3; i++)
if (!input.ReadFloat(x[i]))
input.Error("Incomplete scale information for texture");
m.MakeScale(x[0], x[1], x[2]);
uvTransform = m * uvTransform;
}
else if (!strcmp(tmp, "rotate"))
{
float x[3];
for (int i = 0; i < 3; i++)
if (!input.ReadFloat(x[i]))
input.Error("Incomplete rotation information for texture");
m.MakeRotationX(x[0]);
uvTransform = m * uvTransform;
m.MakeRotationY(x[1]);
uvTransform = m * uvTransform;
m.MakeRotationZ(x[2]);
uvTransform = m * uvTransform;
}
else if (!strcmp(tmp, "matrix")) // matrix
{
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
if (!input.ReadFloat(m(i, j)))
input.Error("Incomplete matrix information for texture");
uvTransform = m * uvTransform;
}
else if (!strcmp(tmp, "homogeneous")) // homogeneous matrix
{
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
if (!input.ReadFloat(m(i, j)))
input.Error("Incomplete homogeneous matrix information for texture");
uvTransform = m * uvTransform;
}
else
input.Error(tmp, "Unrecognized texture transform command: %s", tmp);
}
else if (strncmp(token, "end", 3) != 0)
input.Error(token, "Unrecognized texture shader command: %s", token);
} while (strncmp(token, "end", 3) != 0);
}
void multiTextureShader::Load(Loader &input)
{
char token[MAX_INPUT_LENGTH];
char tmp[MAX_INPUT_LENGTH];
uvTransform = matrix::Identity(4); // 4x4 identity matrix
do
{
input.ReadToken(token);
if (strncmp(token, "texture", 3) == 0)
{
texture *tex = texture::LoadTexture(input);
if (tex == NULL)
input.Error("Unrecognized texture type in multiTextureShader");
else
textures.Append(tex);
}
else if (strcmp(token, "vertexshader") == 0)
{
char tmp[256];
if (!input.ReadToken(tmp))
input.Error("Couldn't find vertex shader name after vertexShader token in multiTextureShader");
else
sprintf(vertexShaderName, "%s%s", exePath, tmp);
}
else if (strcmp(token, "fragmentshader") == 0)
{
char tmp[256];
if (!input.ReadToken(tmp))
input.Error("Couldn't find fragment shader name after vertexShader token in multiTextureShader");
else
sprintf(fragmentShaderName, "%s%s", exePath, tmp);
}
else if (strcmp(token, "transform") == 0)
{
matrix m(4, 4, 1.0);
input.ReadToken(tmp);
if (!strcmp(tmp, "translate"))
{
float x[3];
int nComp;
for (nComp = 0; nComp < 3; nComp++)
if (!input.ReadFloat(x[nComp]))
break;
if (nComp < 2)
input.Error("Incomplete translate information for texture");
else if (nComp == 2)
x[2] = 0.0;
m.MakeTranslation(x[0], x[1], x[2]);
uvTransform = m * uvTransform;
}
else if (!strcmp(tmp, "scale"))
{
float x[3];
int nComp;
for (nComp = 0; nComp < 3; nComp++)
if (!input.ReadFloat(x[nComp]))
break;
if (nComp < 2)
input.Error("Incomplete scale information for texture");
else if (nComp == 2)
x[2] = 0.0;
m.MakeScale(x[0], x[1], x[2]);
uvTransform = m * uvTransform;
}
else if (!strcmp(tmp, "rotate"))
{
float x[3];
int nComp;
for (nComp = 0; nComp < 3; nComp++)
if (!input.ReadFloat(x[nComp]))
break;
if (nComp == 0)
input.Error("Incomplete rotation information for texture");
else if (nComp == 1) // Assume a rotation about the z-axis
{
x[2] = x[0];
x[0] = x[1] = 0.0;
}
else if (nComp == 2)
x[2] = 0.0;
m.MakeRotationX(x[0]);
uvTransform = m * uvTransform;
m.MakeRotationY(x[1]);
uvTransform = m * uvTransform;
m.MakeRotationZ(x[2]);
uvTransform = m * uvTransform;
}
else if (!strcmp(tmp, "matrix")) // matrix
{
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
if (!input.ReadFloat(m(i, j)))
input.Error("Incomplete matrix information for texture");
uvTransform = m * uvTransform;
}
else if (!strcmp(tmp, "homogeneous")) // homogeneous matrix
{
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
if (!input.ReadFloat(m(i, j)))
input.Error("Incomplete homogeneous matrix information for texture");
uvTransform = m * uvTransform;
}
else
input.Error(tmp, "Unrecognized multiTexture transform command: %s", tmp);
}
else if (strcmp(token, "uniform") == 0)
{
input.ReadToken(uniformParamNames[nUniforms], true, false); // This token should be upper & lower case
nUniformComponents[nUniforms] = 0;
for (int i = 0; i < 4; i++)
{
if (!input.ReadFloat(uniformParamValues[nUniforms][i]))
{
if (i == 0)
input.Error("Incomplete uniform parameter %s\n", uniformParamNames[nUniforms]);
break;
}
else
nUniformComponents[nUniforms]++;
}
nUniforms++;
}
else if (strncmp(token, "end", 3) != 0)
input.Error(token, "Unrecognized multiTexture shader command: %s", token);
} while (strncmp(token, "end", 3) != 0);
}
