Material CGraphicsModule::loadMaterial(const char *matName, ImageData *data) {
Material material = materials[matName];
if (material.mat) {
return useMaterial(matName);
}
GLuint textureID;
glGenTextures( 1, &textureID );
glActiveTexture(GL_TEXTURE0);
glBindTexture( GL_TEXTURE_2D, textureID );
unsigned int format = GL_RGBA;
unsigned int level = 0;
glTexImage2D( GL_TEXTURE_2D, level, format,
data->width, data->height, 0, format,
GL_UNSIGNED_BYTE, (void*) data->data );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
Material ret = { (unsigned int)textureID, data->width, data->height };
materials[matName] = ret;
return ret;
}
// Add an overwrite primitive material
void GLC_RenderProperties::addOverwritePrimitiveMaterial(GLC_uint id, GLC_Material* pMaterial, int bodyIndex)
{
Q_ASSERT(NULL != pMaterial);
if (NULL != m_pOverwritePrimitiveMaterialMaps)
{
if (m_pOverwritePrimitiveMaterialMaps->contains(bodyIndex))
{
QHash<GLC_uint, GLC_Material*>* pHash= m_pOverwritePrimitiveMaterialMaps->value(bodyIndex);
if (pHash->contains(id))
{
if (pHash->value(id) != pMaterial)
{
GLC_Material* pOldMaterial= pHash->value(id);
unUseMaterial(pOldMaterial);
pHash->remove(id);
pHash->insert(id, pMaterial);
useMaterial(pMaterial);
}
// Else, noting to do
}
else
{
pHash->insert(id, pMaterial);
useMaterial(pMaterial);
}
}
else
{
QHash<GLC_uint, GLC_Material*>* pHash= new QHash<GLC_uint, GLC_Material*>();
pHash->insert(id, pMaterial);
useMaterial(pMaterial);
m_pOverwritePrimitiveMaterialMaps->insert(bodyIndex, pHash);
}
}
else
{
m_pOverwritePrimitiveMaterialMaps= new QHash<int, QHash<GLC_uint, GLC_Material*>* >();
QHash<GLC_uint, GLC_Material*>* pHash= new QHash<GLC_uint, GLC_Material*>();
pHash->insert(id, pMaterial);
m_pOverwritePrimitiveMaterialMaps->insert(bodyIndex, pHash);
useMaterial(pMaterial);
}
}
Material CGraphicsModule::loadMaterial(const char *matName) {
Material material = materials[matName];
if (material.mat) {
return useMaterial(matName);
}
GLuint textureID;
glGenTextures( 1, &textureID );
GLFWimage teximg; // Use intermediate GLFWimage to get width and height
if(!glfwReadImage(matName, &teximg, GLFW_NO_RESCALE_BIT))
printf("I/O error %s", "Failed to load distance texture from TGA file.");
glActiveTexture(GL_TEXTURE0);
glBindTexture( GL_TEXTURE_2D, textureID );
glfwLoadTextureImage2D( &teximg, 0 );
unsigned int width = teximg.Width, height = teximg.Height;
// The special shader used to render this texture performs its own minification
// and magnification. Specify nearest neighbor sampling to avoid trampling
// over the distance values split over two channels as 8.8 fixed-point data.
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
glfwFreeImage(&teximg); // Clean up the malloc()'ed data pointer
Material ret = { (unsigned int)textureID, width, height };
materials[matName] = ret;
return ret;
}
