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/* 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 "engines/myst3/gfx_tinygl_texture.h"
#include "graphics/tinygl/tinygl.h"
namespace Myst3 {
TinyGLTexture2D::TinyGLTexture2D(const Graphics::Surface *surface) {
width = surface->w;
height = surface->h;
format = surface->format;
_blitImage = tglGenBlitImage();
update(surface);
}
TinyGLTexture2D::~TinyGLTexture2D() {
tglDeleteBlitImage(_blitImage);
}
void TinyGLTexture2D::update(const Graphics::Surface *surface) {
tglUploadBlitImage(_blitImage, *surface, 0, false);
}
void TinyGLTexture2D::updatePartial(const Graphics::Surface *surface, const Common::Rect &rect) {
// FIXME: TinyGL does not support partial texture update
update(surface);
}
TinyGL::BlitImage *TinyGLTexture2D::getBlitTexture() const {
return _blitImage;
}
TinyGLTexture3D::TinyGLTexture3D(const Graphics::Surface *surface) {
width = surface->w;
height = surface->h;
format = surface->format;
if (format.bytesPerPixel == 4) {
internalFormat = TGL_RGBA;
sourceFormat = TGL_UNSIGNED_BYTE;
} else if (format.bytesPerPixel == 2) {
internalFormat = TGL_RGB;
sourceFormat = TGL_UNSIGNED_SHORT_5_6_5;
} else
error("Unknown pixel format");
tglGenTextures(1, &id);
tglBindTexture(TGL_TEXTURE_2D, id);
tglTexImage2D(TGL_TEXTURE_2D, 0, internalFormat, width, height, 0, internalFormat, sourceFormat, nullptr);
tglTexParameteri(TGL_TEXTURE_2D, TGL_TEXTURE_MIN_FILTER, TGL_LINEAR);
tglTexParameteri(TGL_TEXTURE_2D, TGL_TEXTURE_MAG_FILTER, TGL_LINEAR);
// NOTE: TinyGL doesn't have issues with white lines so doesn't need use TGL_CLAMP_TO_EDGE
tglTexParameteri(TGL_TEXTURE_2D, TGL_TEXTURE_WRAP_S, TGL_REPEAT);
tglTexParameteri(TGL_TEXTURE_2D, TGL_TEXTURE_WRAP_T, TGL_REPEAT);
update(surface);
}
TinyGLTexture3D::~TinyGLTexture3D() {
tglDeleteTextures(1, &id);
}
void TinyGLTexture3D::update(const Graphics::Surface *surface) {
tglBindTexture(TGL_TEXTURE_2D, id);
tglTexImage2D(TGL_TEXTURE_2D, 0, internalFormat, width, height, 0,
internalFormat, sourceFormat, const_cast<void *>(surface->getPixels())); // TESTME: Not sure if it works.
}
void TinyGLTexture3D::updatePartial(const Graphics::Surface *surface, const Common::Rect &rect) {
// FIXME: TinyGL does not support partial texture update
update(surface);
}
} // End of namespace Myst3
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