scummvm/engines/freescape/gfx_tinygl_texture.cpp

65 lines
1.9 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "graphics/tinygl/zblit.h"
#include "freescape/gfx_tinygl_texture.h"
namespace Freescape {
const Graphics::PixelFormat TinyGLTexture::getRGBAPixelFormat() {
return Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0);
}
TinyGLTexture::TinyGLTexture(const Graphics::Surface *surface) {
_width = surface->w;
_height = surface->h;
_format = surface->format;
_id = 0;
_internalFormat = 0;
_sourceFormat = 0;
_blitImage = tglGenBlitImage();
update(surface);
}
TinyGLTexture::~TinyGLTexture() {
tglDeleteTextures(1, &_id);
tglDeleteBlitImage(_blitImage);
}
void TinyGLTexture::update(const Graphics::Surface *surface) {
uint32 keyColor = getRGBAPixelFormat().RGBToColor(0xA0, 0xA0, 0xA0);
tglUploadBlitImage(_blitImage, *surface, keyColor, true);
}
void TinyGLTexture::updatePartial(const Graphics::Surface *surface, const Common::Rect &rect) {
// FIXME: TinyGL does not support partial texture update
update(surface);
}
TinyGL::BlitImage *TinyGLTexture::getBlitTexture() const {
return _blitImage;
}
} // End of namespace Freescape