Initial commit

engines/grim/sprite.cpp

@@ -0,0 +1,100 @@
+/* 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 "common/endian.h"
+
+#include "engines/grim/debug.h"
+#include "engines/grim/sprite.h"
+#include "engines/grim/resource.h"
+#include "engines/grim/gfx_base.h"
+#include "engines/grim/emi/costumeemi.h"
+
+namespace Grim {
+
+Sprite::Sprite() :
+		_width(0), _height(0), _visible(false), _material(nullptr), _next(nullptr),
+		_flags1(0), _flags2(0) {
+}
+
+void Sprite::draw() const {
+	if (!_visible)
+		return;
+
+	_material->select();
+	g_driver->drawSprite(this);
+}
+
+void Sprite::loadGrim(const Common::String &name, const char *comma, CMap *cmap) {
+	int width, height, x, y, z;
+	sscanf(comma, ",%d,%d,%d,%d,%d", &width, &height, &x, &y, &z);
+	_material = g_resourceloader->loadMaterial(name, cmap, true);
+	_width = (float)width / 100.0f;
+	_height = (float)height / 100.0f;
+	_pos.set((float)x / 100.0f, (float)y / 100.0f, (float)z / 100.0f);
+
+	// Set the default flags for GRIM sprites
+	_flags1 = Sprite::AlphaTest;
+	_flags2 = Sprite::DepthTest;
+}
+
+void Sprite::loadBinary(Common::SeekableReadStream *stream, EMICostume *costume) {
+	if (!stream)
+		return;
+
+	uint32 namelength = stream->readUint32LE();
+	char *name = new char[namelength];
+	stream->read(name, namelength);
+
+	stream->seek(40, SEEK_CUR);
+	uint32 texnamelength = stream->readUint32LE();
+	char *texname = new char[texnamelength];
+	stream->read(texname, texnamelength);
+	_flags1 = stream->readUint32LE();
+	if (_flags1 & ~(BlendAdditive)) {
+		Debug::debug(Debug::Sprites, "Sprite %s has unknown flags (%08x) in first flag field", name, _flags1);
+	}
+	_width = stream->readFloatLE();
+	_height = stream->readFloatLE();
+	_pos.readFromStream(stream);
+	for (int i = 0; i < 4; ++i) {
+		_alpha[i] = stream->readSint32LE();
+		_red[i] = stream->readSint32LE();
+		_green[i] = stream->readSint32LE();
+		_blue[i] = stream->readSint32LE();
+	}
+	for (int i = 0; i < 4; ++i) {
+		_texCoordX[i] = stream->readFloatLE();
+		_texCoordY[i] = stream->readFloatLE();
+	}
+	_flags2 = stream->readUint32LE();
+	if (_flags2 & ~(DepthTest | AlphaTest)) {
+		Debug::debug(Debug::Sprites, "Sprite %s has unknown flags (%08x) in second flag field", name, _flags2);
+	}
+
+	_material = costume->loadMaterial(texname, true);
+	_next = nullptr;
+	_visible = true;
+
+	delete[] name;
+	delete[] texname;
+}
+
+} // end of namespace Grim