Initial commit

engines/freescape/gfx_opengl.h

@@ -0,0 +1,106 @@
+/* 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/>.
+ *
+ */
+
+#ifndef FREESCAPE_GFX_OPENGL_H
+#define FREESCAPE_GFX_OPENGL_H
+
+#include "graphics/opengl/system_headers.h"
+#include "math/vector3d.h"
+#include "math/vector2d.h"
+
+#include "freescape/gfx.h"
+
+#ifdef USE_OPENGL_GAME
+
+namespace Freescape {
+
+class OpenGLRenderer : public Renderer {
+public:
+	OpenGLRenderer(int screenW, int screenH, Common::RenderMode renderMode, bool authenticGraphics);
+	virtual ~OpenGLRenderer();
+
+	struct Vertex {
+		GLfloat x;
+		GLfloat y;
+		GLfloat z;
+	};
+
+	void copyToVertexArray(uint idx, const Math::Vector3d &src) {
+		assert(idx < kVertexArraySize);
+		_verts[idx].x = src.x();
+		_verts[idx].y = src.y();
+		_verts[idx].z = src.z();
+	}
+
+	Vertex *_verts;
+
+	struct Coord {
+		GLfloat x;
+		GLfloat y;
+	};
+
+	Coord *_coords;
+
+	void copyToCoordArray(uint idx, const Math::Vector2d &src) {
+		assert(idx < kCoordsArraySize);
+		_coords[idx].x = src.getValue(0);
+		_coords[idx].y = src.getValue(1);
+	}
+
+	virtual void init() override;
+	virtual void clear(uint8 r, uint8 g, uint8 b, bool ignoreViewport = false) override;
+	virtual void setViewport(const Common::Rect &rect) override;
+	virtual Common::Point nativeResolution() override;
+	virtual void positionCamera(const Math::Vector3d &pos, const Math::Vector3d &interest, float rollAngle = 0.0) override;
+	virtual void updateProjectionMatrix(float fov, float aspectRatio, float nearClipPlane, float farClipPlane) override;
+
+	virtual void useColor(uint8 r, uint8 g, uint8 b) override;
+	virtual void polygonOffset(bool enabled) override;
+	virtual void setStippleData(byte *data) override;
+	virtual void useStipple(bool enabled) override;
+	virtual void depthTesting(bool enabled) override;
+
+
+	Texture *createTexture(const Graphics::Surface *surface, bool is3D = false) override;
+	void freeTexture(Texture *texture) override;
+	virtual void drawTexturedRect2D(const Common::Rect &screenRect, const Common::Rect &textureRect, Texture *texture) override;
+
+	virtual void renderSensorShoot(byte color, const Math::Vector3d sensor, const Math::Vector3d player, const Common::Rect &viewPort) override;
+	virtual void renderPlayerShootBall(byte color, const Common::Point &position, int frame, const Common::Rect &viewPort) override;
+	virtual void renderPlayerShootRay(byte color, const Common::Point &position, const Common::Rect &viewPort) override;
+	virtual void renderCrossair(const Common::Point &crossairPosition) override;
+
+	virtual void renderFace(const Common::Array<Math::Vector3d> &vertices) override;
+
+	virtual void flipBuffer() override;
+	virtual void drawFloor(uint8 color) override;
+	void drawCelestialBody(Math::Vector3d position, float radius, uint8 color) override;
+	void drawSkybox(Texture *texture, Math::Vector3d camera) override;
+	void drawThunder(Texture *texture, Math::Vector3d camera, float size) override;
+
+	virtual Graphics::Surface *getScreenshot() override;
+};
+
+} // End of namespace Freescape
+
+#endif
+
+#endif // FREESCAPE_GFX_OPENGL_H