//----------------------------------------------------------------------------//
void OpenGLESTexture::loadCompressedTextureBuffer(const Rectf& dest_area,
const GLvoid* buffer) const
{
const GLsizei image_size = getCompressedTextureSize(dest_area.getSize());
glCompressedTexImage2D(GL_TEXTURE_2D, 0, d_format,
static_cast<GLsizei>(dest_area.getWidth()),
static_cast<GLsizei>(dest_area.getHeight()),
0, image_size, buffer);
}
//----------------------------------------------------------------------------//
void OpenGLESTexture::loadCompressedTextureBuffer(const Sizef& buffer_size,
const void* buffer) const
{
GLsizei image_size = getCompressedTextureSize(buffer_size);
glCompressedTexImage2D(GL_TEXTURE_2D, 0, d_format,
static_cast<GLsizei>(buffer_size.d_width),
static_cast<GLsizei>(buffer_size.d_height),
0, image_size, buffer);
}
//----------------------------------------------------------------------------//
void GLES2Texture::setTextureSize_impl(const Sizef& sz)
{
const Sizef size(d_owner.getAdjustedTextureSize(sz));
d_size = size;
// make sure size is within boundaries
GLfloat maxSize;
glGetFloatv(GL_MAX_TEXTURE_SIZE, &maxSize);
char tBuff[250];
Logger::getSingleton().logEvent( tBuff );
if((size.d_width > maxSize) || (size.d_height > maxSize))
CEGUI_THROW(RendererException("size too big"));
// save old texture binding
GLuint old_tex;
glGetIntegerv(GL_TEXTURE_BINDING_2D, reinterpret_cast<GLint*>(&old_tex));
Logger::getSingleton().logEvent( tBuff );
// set texture to required size
glBindTexture(GL_TEXTURE_2D, d_ogltexture);
Logger::getSingleton().logEvent( tBuff );
if(d_isCompressed)
{
const GLsizei image_size = getCompressedTextureSize(size);
glCompressedTexImage2D(GL_TEXTURE_2D, 0, d_format,
static_cast<GLsizei>(size.d_width),
static_cast<GLsizei>(size.d_height),
0, image_size, 0);
}
else
{
#ifndef CEGUI_GLES3_SUPPORT
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
#else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,
#endif
static_cast<GLsizei>(size.d_width),
static_cast<GLsizei>(size.d_height),
0, GL_RGBA , GL_UNSIGNED_BYTE, 0);
}
// restore previous texture binding.
glBindTexture(GL_TEXTURE_2D, old_tex);
}
//----------------------------------------------------------------------------//
void OpenGL1Texture::setTextureSize_impl(const Sizef& sz)
{
const Sizef size(d_owner.getAdjustedTextureSize(sz));
d_size = size;
// make sure size is within boundaries
GLfloat maxSize;
glGetFloatv(GL_MAX_TEXTURE_SIZE, &maxSize);
if((size.d_width > maxSize) || (size.d_height > maxSize))
throw RendererException("size too big");
// save old texture binding
GLuint old_tex;
glGetIntegerv(GL_TEXTURE_BINDING_2D, reinterpret_cast<GLint*>(&old_tex));
// set texture to required size
glBindTexture(GL_TEXTURE_2D, d_ogltexture);
if(d_isCompressed)
{
const GLsizei image_size = getCompressedTextureSize(size);
glCompressedTexImage2D(GL_TEXTURE_2D, 0, d_format,
static_cast<GLsizei>(size.d_width),
static_cast<GLsizei>(size.d_height),
0, image_size, 0);
}
else
{
glTexImage2D(GL_TEXTURE_2D, 0, d_format,
static_cast<GLsizei>(size.d_width),
static_cast<GLsizei>(size.d_height),
0, d_format, d_subpixelFormat, 0);
}
// restore previous texture binding.
glBindTexture(GL_TEXTURE_2D, old_tex);
}