//----------------------------------------------------------------------------//
void OpenGL3Texture::loadFromMemory(const void* buffer, const Sizef& buffer_size,
PixelFormat pixel_format)
{
if (!isPixelFormatSupported(pixel_format))
CEGUI_THROW(InvalidRequestException(
"Data was supplied in an unsupported pixel format."));
initInternalPixelFormatFields(pixel_format);
setTextureSize_impl(buffer_size);
// store size of original data we are loading
d_dataSize = buffer_size;
updateCachedScaleValues();
// save old texture binding
GLuint old_tex;
glGetIntegerv(GL_TEXTURE_BINDING_2D, reinterpret_cast<GLint*>(&old_tex));
// do the real work of getting the data into the texture
glBindTexture(GL_TEXTURE_2D, d_ogltexture);
if (d_isCompressed)
loadCompressedTextureBuffer(buffer_size, buffer);
else
loadUncompressedTextureBuffer(buffer_size, buffer);
// restore previous texture binding.
glBindTexture(GL_TEXTURE_2D, old_tex);
}
//----------------------------------------------------------------------------//
void OpenGLTexture::initialise(GLuint tex, const Sizef& size)
{
d_ogltexture = tex;
d_size = size;
d_dataSize = size;
initInternalPixelFormatFields(PF_RGBA);
updateCachedScaleValues();
}
//----------------------------------------------------------------------------//
void OpenGL3Texture::setTextureSize(const Sizef& sz)
{
initInternalPixelFormatFields(PF_RGBA);
setTextureSize_impl(sz);
d_dataSize = d_size;
updateCachedScaleValues();
}
//----------------------------------------------------------------------------//
OpenGL3Texture::OpenGL3Texture(OpenGL3Renderer& owner, const String& name) :
d_size(0, 0),
d_grabBuffer(0),
d_dataSize(0, 0),
d_texelScaling(0, 0),
d_owner(owner),
d_name(name)
{
initInternalPixelFormatFields(PF_RGBA);
generateOpenGLTexture();
}
//----------------------------------------------------------------------------//
OpenGL3Texture::OpenGL3Texture(OpenGL3Renderer& owner, const String& name,
GLuint tex, const Sizef& size) :
d_ogltexture(tex),
d_size(size),
d_grabBuffer(0),
d_dataSize(size),
d_owner(owner),
d_name(name)
{
initInternalPixelFormatFields(PF_RGBA);
updateCachedScaleValues();
}
//----------------------------------------------------------------------------//
OpenGL3Texture::OpenGL3Texture(OpenGL3Renderer& owner, const String& name,
const String& filename,
const String& resourceGroup) :
d_size(0, 0),
d_grabBuffer(0),
d_dataSize(0, 0),
d_owner(owner),
d_name(name)
{
initInternalPixelFormatFields(PF_RGBA);
generateOpenGLTexture();
loadFromFile(filename, resourceGroup);
}
//----------------------------------------------------------------------------//
void OpenGLTexture::loadFromMemory(const void* buffer, const Sizef& buffer_size,
PixelFormat pixel_format)
{
if (!isPixelFormatSupported(pixel_format))
throw InvalidRequestException(
"Data was supplied in an unsupported pixel format.");
initInternalPixelFormatFields(pixel_format);
setTextureSize_impl(buffer_size);
// store size of original data we are loading
d_dataSize = buffer_size;
updateCachedScaleValues();
blitFromMemory(buffer, Rectf(glm::vec2(0, 0), buffer_size));
}
//----------------------------------------------------------------------------//
void OpenGLTexture::initialise(const String& filename, const String& resourceGroup)
{
initInternalPixelFormatFields(PF_RGBA);
generateOpenGLTexture();
loadFromFile(filename, resourceGroup);
}
//----------------------------------------------------------------------------//
void OpenGLTexture::initialise()
{
initInternalPixelFormatFields(PF_RGBA);
generateOpenGLTexture();
}
//----------------------------------------------------------------------------//
void OpenGLTexture::initialise(const Sizef& size)
{
initInternalPixelFormatFields(PF_RGBA);
generateOpenGLTexture();
setTextureSize(size);
}
