1 files changed, 140 insertions, 0 deletions
diff --git a/backends/platform/android/video.h b/backends/platform/android/video.h
new file mode 100644
index 0000000000..ee707e4cb5
--- /dev/null
+++ b/backends/platform/android/video.h
@@ -0,0 +1,140 @@
+/* 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/trunk/backends/platform/null/null.cpp $
+ * $Id: null.cpp 34912 2008-11-06 15:02:50Z fingolfin $
+ *
+ */
+
+#if defined(ANDROID)
+
+#include <GLES/gl.h>
+
+#include "graphics/surface.h"
+
+#include "common/rect.h"
+#include "common/array.h"
+
+class GLESTexture {
+public:
+	static void initGLExtensions();
+
+	GLESTexture();
+	virtual ~GLESTexture();
+	virtual void reinitGL();
+	virtual void allocBuffer(GLuint width, GLuint height);
+	const Graphics::Surface* surface_const() const { return &_surface; }
+	GLuint width() const { return _surface.w; }
+	GLuint height() const { return _surface.h; }
+	GLuint texture_name() const { return _texture_name; }
+	bool dirty() const { return _all_dirty || !_dirty_rect.isEmpty(); }
+	virtual void updateBuffer(GLuint x, GLuint y, GLuint width, GLuint height,
+							  const void* buf, int pitch);
+	virtual void fillBuffer(byte x);
+	virtual void drawTexture() {
+		drawTexture(0, 0, _surface.w, _surface.h);
+	}
+	virtual void drawTexture(GLshort x, GLshort y, GLshort w, GLshort h);
+
+protected:
+	virtual byte bytesPerPixel() const = 0;
+	virtual GLenum glFormat() const = 0;
+	virtual GLenum glType() const = 0;
+	virtual size_t paletteSize() const { return 0; };
+	void setDirty() {
+		_all_dirty = true;
+		_dirty_rect = Common::Rect();
+	}
+	void setDirtyRect(const Common::Rect& r) {
+		if (!_all_dirty) {
+			if (_dirty_rect.isEmpty())
+				_dirty_rect = r;
+			else
+				_dirty_rect.extend(r);
+		}
+	}
+	GLuint _texture_name;
+	Graphics::Surface _surface;
+	GLuint _texture_width;
+	GLuint _texture_height;
+	bool _all_dirty;
+	Common::Rect _dirty_rect;  // Covers dirty area
+};
+
+// RGBA4444 texture
+class GLES4444Texture : public GLESTexture {
+protected:
+	virtual byte bytesPerPixel() const { return 2; }
+	virtual GLenum glFormat() const { return GL_RGBA; }
+	virtual GLenum glType() const { return GL_UNSIGNED_SHORT_4_4_4_4; }
+};
+
+// RGB565 texture
+class GLES565Texture : public GLESTexture {
+protected:
+	virtual byte bytesPerPixel() const { return 2; }
+	virtual GLenum glFormat() const { return GL_RGB; }
+	virtual GLenum glType() const { return GL_UNSIGNED_SHORT_5_6_5; }
+};
+
+// RGB888 256-entry paletted texture
+class GLESPaletteTexture : public GLESTexture {
+public:
+	GLESPaletteTexture();
+	virtual ~GLESPaletteTexture();
+	virtual void allocBuffer(GLuint width, GLuint height);
+	virtual void updateBuffer(GLuint x, GLuint y, GLuint width, GLuint height,
+							  const void* buf, int pitch);
+	Graphics::Surface* surface() {
+		setDirty();
+		return &_surface;
+	}
+	void* pixels() {
+		setDirty();
+		return _surface.pixels;
+	}
+	const byte* palette_const() const { return _texture; };
+	byte* palette() {
+		setDirty();
+		return _texture;
+	};
+	virtual void drawTexture() {
+		drawTexture(0, 0, _surface.w, _surface.h);
+	}
+	virtual void drawTexture(GLshort x, GLshort y, GLshort w, GLshort h);
+	virtual void fillBuffer(byte x);
+protected:
+	virtual byte bytesPerPixel() const { return 1; }
+	virtual GLenum glFormat() const { return GL_RGB; }
+	virtual GLenum glType() const { return GL_PALETTE8_RGB8_OES; }
+	virtual size_t paletteSize() const { return 256 * 3; };
+	virtual void uploadTexture() const;
+	byte* _texture;
+};
+
+// RGBA8888 256-entry paletted texture
+class GLESPaletteATexture : public GLESPaletteTexture {
+protected:
+	virtual GLenum glFormat() const { return GL_RGBA; }
+	virtual GLenum glType() const { return GL_PALETTE8_RGBA8_OES; }
+	virtual size_t paletteSize() const { return 256 * 4; };
+};
+
+#endif