/*

 * This file is part of OpenTTD.

 * OpenTTD 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, version 2.

 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/** @file 40bpp_optimized.cpp Implementation of the optimized 40 bpp blitter. */

#include "../stdafx.h"

#include "../zoom_func.h"

#include "../settings_type.h"

#include "../video/video_driver.hpp"

#include "40bpp_anim.hpp"

#include "common.hpp"

#include "../table/sprites.h"

#include "../safeguards.h"

/** Instantiation of the 40bpp with animation blitter factory. */

static FBlitter_40bppAnim iFBlitter_40bppAnim;

/*

 * This file is part of OpenTTD.

 * OpenTTD 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, version 2.

 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/** @file 40bpp_optimized.hpp Optimized 40 bpp blitter. */

#ifndef BLITTER_40BPP_OPTIMIZED_HPP

#define BLITTER_40BPP_OPTIMIZED_HPP

#include "32bpp_optimized.hpp"

#include "../video/video_driver.hpp"

/** The optimized 40 bpp blitter (for OpenGL video driver). */

class Blitter_40bppAnim : public Blitter_32bppOptimized {

public:

	// void *MoveTo(void *video, int x, int y) override;

	void SetPixel(void *video, int x, int y, uint8 colour) override;

	void DrawRect(void *video, int width, int height, uint8 colour) override;

	void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 colour, int width, int dash) override;

/*

 * This file is part of OpenTTD.

 * OpenTTD 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, version 2.

 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/** @file lrucache.hpp Size limited cache map with a least recently used eviction strategy. */

#ifndef LRUCACHE_HPP

#define LRUCACHE_HPP

#include <utility>

#include <list>

#include <functional>

#include <unordered_map>

#include <stdexcept>

/**

 * Size limited cache with a least recently used eviction strategy.

 * @tparam Tkey Type of the cache key.

 * @tparam Tdata Type of the cache item. The cache will store a pointer of this type.

 */

template <class Tkey, class Tdata>

/*

 * This file is part of OpenTTD.

 * OpenTTD 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, version 2.

 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/** @file opengl_shader.h OpenGL shader programs. */

/** Vertex shader that positions a sprite on screen.. */

static const char *_vertex_shader_sprite[] = {

	"#version 110\n",

	"uniform vec4 sprite;",

	"uniform vec2 screen;",

	"attribute vec2 position, colour_uv;",

	"varying vec2 colour_tex_uv;",

	"void main() {",

	"  vec2 size = sprite.zw / screen.xy;",

	"  vec2 offset = ((2.0 * sprite.xy + sprite.zw) / screen.xy - 1.0) * vec2(1.0, -1.0);",

	"  colour_tex_uv = colour_uv;",

	"  gl_Position = vec4(position * size + offset, 0.0, 1.0);",

	"}",

};

/*

 * This file is part of OpenTTD.

 * OpenTTD 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, version 2.

 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/** @file opengl_v.cpp OpenGL video driver support. */

#include "../stdafx.h"

/* Define to disable buffer syncing. Will increase max fast forward FPS but produces artifacts. Mainly useful for performance testing. */

// #define NO_GL_BUFFER_SYNC

/* Define to allow software rendering backends. */

// #define GL_ALLOW_SOFTWARE_RENDERER

#if defined(_WIN32)

#	include <windows.h>

#endif

#define GL_GLEXT_PROTOTYPES

#if defined(__APPLE__)

#	define GL_SILENCE_DEPRECATION

#	include <OpenGL/gl3.h>

/*

 * This file is part of OpenTTD.

 * OpenTTD 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, version 2.

 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/** @file opengl.h OpenGL video driver support. */

#ifndef VIDEO_OPENGL_H

#define VIDEO_OPENGL_H

#include "../core/alloc_type.hpp"

#include "../core/geometry_type.hpp"

#include "../gfx_type.h"

#include "../spriteloader/spriteloader.hpp"

#include "../misc/lrucache.hpp"

typedef void (*OGLProc)();

typedef OGLProc (*GetOGLProcAddressProc)(const char *proc);

bool IsOpenGLVersionAtLeast(byte major, byte minor);

const char *FindStringInExtensionList(const char *string, const char *substring);