mirror of
https://github.com/libretro/scummvm.git
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126 lines
3.6 KiB
C++
126 lines
3.6 KiB
C++
/* ResidualVM - A 3D game interpreter
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*
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* ResidualVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/textconsole.h"
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#if defined(USE_OPENGL)
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#include "graphics/opengl/tiledsurface.h"
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#include "graphics/opengl/surfacerenderer.h"
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#include "graphics/opengl/texture.h"
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namespace OpenGL {
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TiledSurface::TiledSurface(uint width, uint height, const Graphics::PixelFormat &pixelFormat) {
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_backingSurface.create(width, height, pixelFormat);
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for (uint y = 0; y < height; y += maxTextureSize) {
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for (uint x = 0; x < width; x += maxTextureSize) {
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uint textureWidth = (x + maxTextureSize >= width) ? (width - x) : maxTextureSize;
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uint textureHeight = (y + maxTextureSize >= height) ? (height - y) : maxTextureSize;
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_tiles.push_back(Tile());
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Tile &tile = _tiles.back();
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tile.rect = Common::Rect(textureWidth, textureHeight);
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tile.rect.translate(x, y);
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tile.texture = nullptr;
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tile.dirty = true;
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}
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}
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}
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TiledSurface::~TiledSurface() {
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for (uint i = 0; i < _tiles.size(); i++) {
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delete _tiles[i].texture;
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}
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_backingSurface.free();
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}
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void TiledSurface::copyRectToSurface(const void *src, int srcPitch, int x, int y, int w, int h) {
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_backingSurface.copyRectToSurface(src, srcPitch, x, y, w, h);
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Common::Rect destRect = Common::Rect(w, h);
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destRect.translate(x, y);
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for (uint i = 0; i < _tiles.size(); i++) {
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if (_tiles[i].rect.intersects(destRect) || _tiles[i].rect.contains(destRect)) {
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_tiles[i].dirty = true;
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}
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}
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}
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void TiledSurface::update() {
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for (uint i = 0; i < _tiles.size(); i++) {
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Tile &tile = _tiles[i];
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if (tile.dirty) {
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Graphics::Surface subSurface = _backingSurface.getSubArea(tile.rect);
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delete tile.texture;
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tile.texture = new TextureGL(subSurface);
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tile.dirty = false;
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}
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}
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}
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void TiledSurface::draw(SurfaceRenderer *surfaceRenderer) const {
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for (uint i = 0; i < _tiles.size(); i++) {
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const Tile &tile = _tiles[i];
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assert(tile.texture);
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assert(!tile.dirty);
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Math::Vector2d topLeft = Math::Vector2d(tile.rect.left / (float)_backingSurface.w, tile.rect.top / (float)_backingSurface.h);
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Math::Vector2d bottomRight = Math::Vector2d(tile.rect.right / (float)_backingSurface.w, tile.rect.bottom / (float)_backingSurface.h);
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surfaceRenderer->render(tile.texture, Math::Rect2d(topLeft, bottomRight));
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}
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}
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void TiledSurface::fill(uint32 color) {
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Common::Rect rect = Common::Rect(_backingSurface.w, _backingSurface.h);
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_backingSurface.fillRect(rect, color);
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invalidateAllTiles();
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}
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void TiledSurface::invalidateAllTiles() {
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for (uint i = 0; i < _tiles.size(); i++) {
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_tiles[i].dirty = true;
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}
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}
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Graphics::Surface *TiledSurface::getBackingSurface() {
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invalidateAllTiles();
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return &_backingSurface;
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}
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const Graphics::Surface *TiledSurface::getBackingSurface() const {
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return &_backingSurface;
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}
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} // End of namespace OpenGL
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#endif
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