mirror of
https://github.com/OpenRCT2/OpenRCT2
synced 2026-01-28 01:04:50 +01:00
983 lines
26 KiB
C++
983 lines
26 KiB
C++
#pragma region Copyright (c) 2014-2016 OpenRCT2 Developers
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/*****************************************************************************
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* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
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*
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* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
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* For more information, visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* A full copy of the GNU General Public License can be found in licence.txt
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*****************************************************************************/
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#pragma endregion
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#ifdef DISABLE_OPENGL
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#include "../../IDrawingEngine.h"
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IDrawingEngine * DrawingEngineFactory::CreateOpenGL()
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{
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return nullptr;
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}
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#else
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#include <unordered_map>
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#include <vector>
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#include <SDL_platform.h>
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#include "GLSLTypes.h"
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#include "OpenGLAPI.h"
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#include "OpenGLFramebuffer.h"
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#include "CopyFramebufferShader.h"
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#include "DrawImageShader.h"
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#include "DrawLineShader.h"
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#include "FillRectShader.h"
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#include "SwapFramebuffer.h"
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#include "TextureCache.h"
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#include "DrawCommands.h"
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#include "../../../core/Console.hpp"
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#include "../../../core/Exception.hpp"
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#include "../../../core/Math.hpp"
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#include "../../../core/Memory.hpp"
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#include "../../IDrawingContext.h"
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#include "../../IDrawingEngine.h"
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#include "../../Rain.h"
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#include "../../../config.h"
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extern "C"
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{
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#include "../../../config.h"
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#include "../../../interface/screenshot.h"
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#include "../../../interface/window.h"
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#include "../../../intro.h"
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#include "../../drawing.h"
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}
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struct OpenGLVersion
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{
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GLint Major;
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GLint Minor;
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};
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constexpr OpenGLVersion OPENGL_MINIMUM_REQUIRED_VERSION = { 3, 3 };
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static const vec3f TransparentColourTable[144 - 44] =
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{
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{ 0.7f, 0.8f, 0.8f }, // 44
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{ 0.7f, 0.8f, 0.8f },
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{ 0.3f, 0.4f, 0.4f },
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{ 0.2f, 0.3f, 0.3f },
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{ 0.1f, 0.2f, 0.2f },
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{ 0.4f, 0.5f, 0.5f },
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{ 0.3f, 0.4f, 0.4f },
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{ 0.4f, 0.5f, 0.5f },
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{ 0.4f, 0.5f, 0.5f },
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{ 0.3f, 0.4f, 0.4f },
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{ 0.6f, 0.7f, 0.7f },
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{ 0.3f, 0.5f, 0.9f },
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{ 0.1f, 0.3f, 0.8f },
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{ 0.5f, 0.7f, 0.9f },
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{ 0.6f, 0.2f, 0.2f },
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{ 0.5f, 0.1f, 0.1f },
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{ 0.8f, 0.4f, 0.4f },
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{ 0.3f, 0.5f, 0.4f },
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{ 0.2f, 0.4f, 0.2f },
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{ 0.5f, 0.7f, 0.5f },
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{ 0.5f, 0.5f, 0.7f },
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{ 0.3f, 0.3f, 0.5f },
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{ 0.6f, 0.6f, 0.8f },
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{ 0.5f, 0.5f, 0.2f },
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{ 0.4f, 0.4f, 0.1f },
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{ 0.7f, 0.7f, 0.4f },
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{ 0.7f, 0.5f, 0.3f },
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{ 0.6f, 0.4f, 0.2f },
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{ 0.8f, 0.7f, 0.4f },
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{ 0.8f, 0.7f, 0.1f },
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{ 0.7f, 0.4f, 0.0f },
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{ 1.0f, 0.9f, 0.2f },
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{ 0.4f, 0.6f, 0.2f },
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{ 0.3f, 0.4f, 0.2f },
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{ 0.5f, 0.7f, 0.3f },
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{ 0.5f, 0.6f, 0.4f },
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{ 0.4f, 0.4f, 0.3f },
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{ 0.7f, 0.8f, 0.5f },
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{ 0.3f, 0.7f, 0.2f },
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{ 0.2f, 0.6f, 0.0f },
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{ 0.4f, 0.8f, 0.3f },
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{ 0.8f, 0.5f, 0.4f },
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{ 0.7f, 0.4f, 0.3f },
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{ 0.9f, 0.7f, 0.5f },
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{ 0.5f, 0.3f, 0.7f },
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{ 0.4f, 0.2f, 0.6f },
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{ 0.7f, 0.5f, 0.8f },
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{ 0.9f, 0.0f, 0.0f },
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{ 0.7f, 0.0f, 0.0f },
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{ 1.0f, 0.3f, 0.3f },
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{ 1.0f, 0.4f, 0.1f },
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{ 0.9f, 0.3f, 0.0f },
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{ 1.0f, 0.6f, 0.3f },
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{ 0.2f, 0.6f, 0.6f },
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{ 0.0f, 0.4f, 0.4f },
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{ 0.4f, 0.7f, 0.7f },
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{ 0.9f, 0.2f, 0.6f },
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{ 0.6f, 0.1f, 0.4f },
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{ 1.0f, 0.5f, 0.7f },
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{ 0.6f, 0.5f, 0.4f },
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{ 0.4f, 0.3f, 0.2f },
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{ 0.7f, 0.7f, 0.6f },
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{ 0.9f, 0.6f, 0.6f },
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{ 0.8f, 0.5f, 0.5f },
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{ 1.0f, 0.7f, 0.7f },
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{ 0.7f, 0.8f, 0.8f },
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{ 0.5f, 0.6f, 0.6f },
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{ 0.9f, 1.0f, 1.0f },
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{ 0.2f, 0.3f, 0.3f },
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{ 0.4f, 0.5f, 0.5f },
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{ 0.7f, 0.8f, 0.8f },
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{ 0.2f, 0.3f, 0.5f },
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{ 0.5f, 0.5f, 0.7f },
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{ 0.5f, 0.3f, 0.7f },
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{ 0.1f, 0.3f, 0.7f },
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{ 0.3f, 0.5f, 0.9f },
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{ 0.6f, 0.8f, 1.0f },
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{ 0.2f, 0.6f, 0.6f },
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{ 0.5f, 0.8f, 0.8f },
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{ 0.1f, 0.5f, 0.0f },
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{ 0.3f, 0.5f, 0.4f },
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{ 0.4f, 0.6f, 0.2f },
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{ 0.3f, 0.7f, 0.2f },
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{ 0.5f, 0.6f, 0.4f },
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{ 0.5f, 0.5f, 0.2f },
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{ 1.0f, 0.9f, 0.2f },
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{ 0.8f, 0.7f, 0.1f },
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{ 0.6f, 0.3f, 0.0f },
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{ 1.0f, 0.4f, 0.1f },
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{ 0.7f, 0.3f, 0.0f },
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{ 0.7f, 0.5f, 0.3f },
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{ 0.5f, 0.3f, 0.1f },
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{ 0.5f, 0.4f, 0.3f },
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{ 0.8f, 0.5f, 0.4f },
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{ 0.6f, 0.2f, 0.2f },
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{ 0.6f, 0.0f, 0.0f },
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{ 0.9f, 0.0f, 0.0f },
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{ 0.6f, 0.1f, 0.3f },
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{ 0.9f, 0.2f, 0.6f },
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{ 0.9f, 0.6f, 0.6f },
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};
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class OpenGLDrawingEngine;
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class OpenGLDrawingContext : public IDrawingContext
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{
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private:
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OpenGLDrawingEngine * _engine;
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rct_drawpixelinfo * _dpi;
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DrawImageShader * _drawImageShader = nullptr;
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DrawLineShader * _drawLineShader = nullptr;
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FillRectShader * _fillRectShader = nullptr;
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TextureCache * _textureCache = nullptr;
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sint32 _offsetX;
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sint32 _offsetY;
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sint32 _clipLeft;
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sint32 _clipTop;
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sint32 _clipRight;
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sint32 _clipBottom;
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struct {
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std::vector<DrawRectCommand> rectangles;
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std::vector<DrawLineCommand> lines;
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std::vector<DrawImageCommand> images;
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} _commandBuffers;
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public:
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explicit OpenGLDrawingContext(OpenGLDrawingEngine * engine);
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~OpenGLDrawingContext() override;
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IDrawingEngine * GetEngine() override;
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TextureCache * GetTextureCache() const { return _textureCache; }
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void Initialise();
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void Resize(sint32 width, sint32 height);
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void ResetPalette();
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void Clear(uint32 colour) override;
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void FillRect(uint32 colour, sint32 x, sint32 y, sint32 w, sint32 h) override;
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void DrawLine(uint32 colour, sint32 x1, sint32 y1, sint32 x2, sint32 y2) override;
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void DrawSprite(uint32 image, sint32 x, sint32 y, uint32 tertiaryColour) override;
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void DrawSpriteRawMasked(sint32 x, sint32 y, uint32 maskImage, uint32 colourImage) override;
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void DrawSpriteSolid(uint32 image, sint32 x, sint32 y, uint8 colour) override;
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void DrawGlyph(uint32 image, sint32 x, sint32 y, uint8 * palette) override;
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void FlushCommandBuffers();
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void FlushRectangles();
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void FlushLines();
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void FlushImages();
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void SetDPI(rct_drawpixelinfo * dpi);
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};
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class OpenGLDrawingEngine : public IDrawingEngine
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{
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private:
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SDL_Window * _window = nullptr;
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SDL_GLContext _context;
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uint32 _width = 0;
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uint32 _height = 0;
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uint32 _pitch = 0;
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size_t _bitsSize = 0;
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uint8 * _bits = nullptr;
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rct_drawpixelinfo _bitsDPI = { 0 };
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OpenGLDrawingContext * _drawingContext;
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CopyFramebufferShader * _copyFramebufferShader = nullptr;
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OpenGLFramebuffer * _screenFramebuffer = nullptr;
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SwapFramebuffer * _swapFramebuffer = nullptr;
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public:
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SDL_Color Palette[256];
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vec4f GLPalette[256];
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OpenGLDrawingEngine()
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{
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_drawingContext = new OpenGLDrawingContext(this);
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}
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~OpenGLDrawingEngine() override
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{
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delete _copyFramebufferShader;
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delete _drawingContext;
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delete [] _bits;
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SDL_GL_DeleteContext(_context);
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}
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void Initialise(SDL_Window * window) override
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{
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_window = window;
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OpenGLVersion requiredVersion = OPENGL_MINIMUM_REQUIRED_VERSION;
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, requiredVersion.Major);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, requiredVersion.Minor);
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_context = SDL_GL_CreateContext(_window);
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if (_context == nullptr)
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{
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char szRequiredVersion[32];
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sprintf(szRequiredVersion, "OpenGL %d.%d", requiredVersion.Major, requiredVersion.Minor);
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throw Exception(std::string(szRequiredVersion) + std::string(" not available."));
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}
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SDL_GL_MakeCurrent(_window, _context);
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if (!OpenGLAPI::Initialise())
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{
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throw Exception("Unable to initialise OpenGL.");
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}
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_drawingContext->Initialise();
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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_copyFramebufferShader = new CopyFramebufferShader();
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}
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void Resize(uint32 width, uint32 height) override
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{
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ConfigureBits(width, height, width);
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ConfigureCanvas();
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_drawingContext->Resize(width, height);
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}
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void SetPalette(SDL_Color * palette) override
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{
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for (int i = 0; i < 256; i++)
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{
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SDL_Color colour = palette[i];
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colour.a = i == 0 ? 0 : 255;
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Palette[i] = colour;
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GLPalette[i] = { colour.r / 255.0f,
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colour.g / 255.0f,
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colour.b / 255.0f,
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colour.a / 255.0f };
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}
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_drawingContext->ResetPalette();
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}
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void SetUncappedFrameRate(bool uncapped) {
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SDL_GL_SetSwapInterval(uncapped ? 0 : 1);
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}
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void Invalidate(sint32 left, sint32 top, sint32 right, sint32 bottom) override
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{
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}
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void Draw() override
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{
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assert(_screenFramebuffer != nullptr);
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assert(_swapFramebuffer != nullptr);
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_swapFramebuffer->Bind();
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if (gIntroState != INTRO_STATE_NONE) {
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intro_draw(&_bitsDPI);
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} else {
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window_update_all_viewports();
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window_draw_all(&_bitsDPI, 0, 0, _width, _height);
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window_update_all();
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gfx_draw_pickedup_peep(&_bitsDPI);
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_drawingContext->FlushCommandBuffers();
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_swapFramebuffer->SwapCopy();
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rct2_draw(&_bitsDPI);
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}
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_drawingContext->FlushCommandBuffers();
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// Scale up to window
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_screenFramebuffer->Bind();
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_copyFramebufferShader->Use();
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_copyFramebufferShader->SetTexture(_swapFramebuffer->GetTargetFramebuffer()
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->GetTexture());
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_copyFramebufferShader->Draw();
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CheckGLError();
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Display();
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}
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sint32 Screenshot() override
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{
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const OpenGLFramebuffer * framebuffer = _swapFramebuffer->GetTargetFramebuffer();
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framebuffer->Bind();
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void * pixels = framebuffer->GetPixels();
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int result = screenshot_dump_png_32bpp(_width, _height, pixels);
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Memory::Free(pixels);
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return result;
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}
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void CopyRect(sint32 x, sint32 y, sint32 width, sint32 height, sint32 dx, sint32 dy) override
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{
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// Not applicable for this engine
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}
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IDrawingContext * GetDrawingContext(rct_drawpixelinfo * dpi) override
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{
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_drawingContext->SetDPI(dpi);
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return _drawingContext;
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}
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rct_drawpixelinfo * GetDrawingPixelInfo() override
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{
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return &_bitsDPI;
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}
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DRAWING_ENGINE_FLAGS GetFlags() override
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{
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return DEF_NONE;
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}
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void InvalidateImage(uint32 image) override
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{
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_drawingContext->GetTextureCache()
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->InvalidateImage(image);
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}
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rct_drawpixelinfo * GetDPI()
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{
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return &_bitsDPI;
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}
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GLuint SwapCopyReturningSourceTexture()
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{
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_swapFramebuffer->SwapCopy();
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return _swapFramebuffer->GetSourceTexture();
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}
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private:
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static OpenGLVersion GetOpenGLVersion()
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{
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OpenGLVersion version;
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if (SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &version.Major) == 0)
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{
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if (SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &version.Minor) == 0)
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{
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return version;
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}
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}
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return { 0, 0 };
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}
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void ConfigureBits(uint32 width, uint32 height, uint32 pitch)
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{
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size_t newBitsSize = pitch * height;
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uint8 * newBits = new uint8[newBitsSize];
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if (_bits == nullptr)
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{
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Memory::Set(newBits, 0, newBitsSize);
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}
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else
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{
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if (_pitch == pitch)
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{
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Memory::Copy(newBits, _bits, Math::Min(_bitsSize, newBitsSize));
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}
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else
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{
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uint8 * src = _bits;
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uint8 * dst = newBits;
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uint32 minWidth = Math::Min(_width, width);
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uint32 minHeight = Math::Min(_height, height);
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for (uint32 y = 0; y < minHeight; y++)
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{
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Memory::Copy(dst, src, minWidth);
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if (pitch - minWidth > 0)
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{
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Memory::Set(dst + minWidth, 0, pitch - minWidth);
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}
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src += _pitch;
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dst += pitch;
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}
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}
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delete [] _bits;
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}
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_bits = newBits;
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_bitsSize = newBitsSize;
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_width = width;
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_height = height;
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_pitch = pitch;
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rct_drawpixelinfo * dpi = &_bitsDPI;
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dpi->bits = _bits;
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dpi->x = 0;
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dpi->y = 0;
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dpi->width = width;
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dpi->height = height;
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dpi->pitch = _pitch - width;
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}
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void ConfigureCanvas()
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{
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// Re-create screen framebuffer
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delete _screenFramebuffer;
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_screenFramebuffer = new OpenGLFramebuffer(_window);
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// Re-create canvas framebuffer
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delete _swapFramebuffer;
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_swapFramebuffer = new SwapFramebuffer(_width, _height);
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_copyFramebufferShader->Use();
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_copyFramebufferShader->SetScreenSize(_width, _height);
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_copyFramebufferShader->SetBounds(0, 0, _width, _height);
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_copyFramebufferShader->SetTextureCoordinates(0, 1, 1, 0);
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}
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void Display()
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{
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SDL_GL_SwapWindow(_window);
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}
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};
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IDrawingEngine * DrawingEngineFactory::CreateOpenGL()
|
|
{
|
|
return new OpenGLDrawingEngine();
|
|
}
|
|
|
|
OpenGLDrawingContext::OpenGLDrawingContext(OpenGLDrawingEngine * engine)
|
|
{
|
|
_engine = engine;
|
|
_textureCache = new TextureCache();
|
|
}
|
|
|
|
OpenGLDrawingContext::~OpenGLDrawingContext()
|
|
{
|
|
delete _drawImageShader;
|
|
delete _drawLineShader;
|
|
delete _fillRectShader;
|
|
|
|
delete _textureCache;
|
|
}
|
|
|
|
IDrawingEngine * OpenGLDrawingContext::GetEngine()
|
|
{
|
|
return _engine;
|
|
}
|
|
|
|
void OpenGLDrawingContext::Initialise()
|
|
{
|
|
_drawImageShader = new DrawImageShader();
|
|
_drawLineShader = new DrawLineShader();
|
|
_fillRectShader = new FillRectShader();
|
|
}
|
|
|
|
void OpenGLDrawingContext::Resize(sint32 width, sint32 height)
|
|
{
|
|
FlushCommandBuffers();
|
|
|
|
_drawImageShader->Use();
|
|
_drawImageShader->SetScreenSize(width, height);
|
|
_drawLineShader->Use();
|
|
_drawLineShader->SetScreenSize(width, height);
|
|
_fillRectShader->Use();
|
|
_fillRectShader->SetScreenSize(width, height);
|
|
}
|
|
|
|
void OpenGLDrawingContext::ResetPalette()
|
|
{
|
|
FlushCommandBuffers();
|
|
|
|
_textureCache->SetPalette(_engine->Palette);
|
|
_drawImageShader->Use();
|
|
_drawImageShader->SetPalette(_engine->GLPalette);
|
|
}
|
|
|
|
void OpenGLDrawingContext::Clear(uint32 colour)
|
|
{
|
|
FillRect(colour, _clipLeft - _offsetX, _clipTop - _offsetY, _clipRight, _clipBottom);
|
|
}
|
|
|
|
void OpenGLDrawingContext::FillRect(uint32 colour, sint32 left, sint32 top, sint32 right, sint32 bottom)
|
|
{
|
|
left += _offsetX;
|
|
top += _offsetY;
|
|
right += _offsetX;
|
|
bottom += _offsetY;
|
|
|
|
DrawRectCommand command = {};
|
|
|
|
command.sourceFramebuffer = _fillRectShader->GetSourceFramebuffer();
|
|
|
|
vec4f paletteColour[2];
|
|
paletteColour[0] = _engine->GLPalette[(colour >> 0) & 0xFF];
|
|
paletteColour[1] = paletteColour[0];
|
|
if (colour & 0x1000000)
|
|
{
|
|
paletteColour[1].a = 0;
|
|
|
|
command.flags = 0;
|
|
}
|
|
else if (colour & 0x2000000)
|
|
{
|
|
uint8 tableIndex = colour & 0xFF;
|
|
if (tableIndex < 44) return;
|
|
if (tableIndex >= 144) return;
|
|
tableIndex -= 44;
|
|
|
|
vec3f transformColour = TransparentColourTable[tableIndex];
|
|
paletteColour[0].r = transformColour.r;
|
|
paletteColour[0].g = transformColour.g;
|
|
paletteColour[0].b = transformColour.b;
|
|
paletteColour[0].a = 1;
|
|
paletteColour[1] = paletteColour[0];
|
|
|
|
GLuint srcTexture = _engine->SwapCopyReturningSourceTexture();
|
|
command.flags = 1;
|
|
command.sourceFramebuffer = srcTexture;
|
|
}
|
|
else
|
|
{
|
|
command.flags = 0;
|
|
}
|
|
|
|
command.colours[0] = paletteColour[0];
|
|
command.colours[1] = paletteColour[1];
|
|
|
|
command.clip[0] = _clipLeft;
|
|
command.clip[1] = _clipTop;
|
|
command.clip[2] = _clipRight;
|
|
command.clip[3] = _clipBottom;
|
|
|
|
command.bounds[0] = left;
|
|
command.bounds[1] = top;
|
|
command.bounds[2] = right + 1;
|
|
command.bounds[3] = bottom + 1;
|
|
|
|
_commandBuffers.rectangles.push_back(command);
|
|
|
|
// Must be rendered in order, depends on already rendered contents
|
|
FlushCommandBuffers();
|
|
}
|
|
|
|
void OpenGLDrawingContext::DrawLine(uint32 colour, sint32 x1, sint32 y1, sint32 x2, sint32 y2)
|
|
{
|
|
x1 += _offsetX;
|
|
y1 += _offsetY;
|
|
x2 += _offsetX;
|
|
y2 += _offsetY;
|
|
|
|
vec4f paletteColour = _engine->GLPalette[colour & 0xFF];
|
|
|
|
DrawLineCommand command = {};
|
|
|
|
command.colour = paletteColour;
|
|
|
|
command.clip[0] = _clipLeft;
|
|
command.clip[1] = _clipTop;
|
|
command.clip[2] = _clipRight;
|
|
command.clip[3] = _clipBottom;
|
|
|
|
command.pos[0] = x1;
|
|
command.pos[1] = y1;
|
|
command.pos[2] = x2;
|
|
command.pos[3] = y2;
|
|
|
|
_commandBuffers.lines.push_back(command);
|
|
|
|
// Must be rendered in order right now, because it does not yet use depth
|
|
FlushCommandBuffers();
|
|
}
|
|
|
|
void OpenGLDrawingContext::DrawSprite(uint32 image, sint32 x, sint32 y, uint32 tertiaryColour)
|
|
{
|
|
int g1Id = image & 0x7FFFF;
|
|
rct_g1_element * g1Element = gfx_get_g1_element(g1Id);
|
|
|
|
if (_dpi->zoom_level != 0)
|
|
{
|
|
if (g1Element->flags & (1 << 4))
|
|
{
|
|
rct_drawpixelinfo zoomedDPI;
|
|
zoomedDPI.bits = _dpi->bits;
|
|
zoomedDPI.x = _dpi->x >> 1;
|
|
zoomedDPI.y = _dpi->y >> 1;
|
|
zoomedDPI.height = _dpi->height >> 1;
|
|
zoomedDPI.width = _dpi->width >> 1;
|
|
zoomedDPI.pitch = _dpi->pitch;
|
|
zoomedDPI.zoom_level = _dpi->zoom_level - 1;
|
|
SetDPI(&zoomedDPI);
|
|
DrawSprite((image << 28) | (g1Id - g1Element->zoomed_offset), x >> 1, y >> 1, tertiaryColour);
|
|
return;
|
|
}
|
|
if (g1Element->flags & (1 << 5))
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
uint8 zoomLevel = (1 << _dpi->zoom_level);
|
|
|
|
sint32 drawOffsetX = g1Element->x_offset;
|
|
sint32 drawOffsetY = g1Element->y_offset;
|
|
sint32 drawWidth = g1Element->width;
|
|
sint32 drawHeight = g1Element->height;
|
|
|
|
sint32 left = x + drawOffsetX;
|
|
sint32 top = y + drawOffsetY;
|
|
sint32 right = left + drawWidth;
|
|
sint32 bottom = top + drawHeight;
|
|
|
|
if (left > right)
|
|
{
|
|
std::swap(left, right);
|
|
}
|
|
if (top > bottom)
|
|
{
|
|
std::swap(top, bottom);
|
|
}
|
|
|
|
left -= _dpi->x;
|
|
top -= _dpi->y;
|
|
right -= _dpi->x;
|
|
bottom -= _dpi->y;
|
|
|
|
left /= zoomLevel;
|
|
top /= zoomLevel;
|
|
right /= zoomLevel;
|
|
bottom /= zoomLevel;
|
|
|
|
left += _clipLeft;
|
|
top += _clipTop;
|
|
right += _clipLeft;
|
|
bottom += _clipTop;
|
|
|
|
DrawImageCommand command = {};
|
|
|
|
command.flags = 0;
|
|
command.mask = false;
|
|
|
|
command.clip[0] = _clipLeft;
|
|
command.clip[1] = _clipTop;
|
|
command.clip[2] = _clipRight;
|
|
command.clip[3] = _clipBottom;
|
|
|
|
auto texture = _textureCache->GetOrLoadImageTexture(image);
|
|
command.texColour = texture;
|
|
|
|
command.bounds[0] = left;
|
|
command.bounds[1] = top;
|
|
command.bounds[2] = right;
|
|
command.bounds[3] = bottom;
|
|
|
|
_commandBuffers.images.push_back(command);
|
|
}
|
|
|
|
void OpenGLDrawingContext::DrawSpriteRawMasked(sint32 x, sint32 y, uint32 maskImage, uint32 colourImage)
|
|
{
|
|
rct_g1_element * g1ElementMask = gfx_get_g1_element(maskImage & 0x7FFFF);
|
|
rct_g1_element * g1ElementColour = gfx_get_g1_element(colourImage & 0x7FFFF);
|
|
|
|
auto textureMask = _textureCache->GetOrLoadImageTexture(maskImage);
|
|
auto textureColour = _textureCache->GetOrLoadImageTexture(colourImage);
|
|
|
|
uint8 zoomLevel = (1 << _dpi->zoom_level);
|
|
|
|
sint32 drawOffsetX = g1ElementMask->x_offset;
|
|
sint32 drawOffsetY = g1ElementMask->y_offset;
|
|
sint32 drawWidth = Math::Min(g1ElementMask->width, g1ElementColour->width);
|
|
sint32 drawHeight = Math::Min(g1ElementMask->height, g1ElementColour->height);
|
|
|
|
sint32 left = x + drawOffsetX;
|
|
sint32 top = y + drawOffsetY;
|
|
sint32 right = left + drawWidth;
|
|
sint32 bottom = top + drawHeight;
|
|
|
|
if (left > right)
|
|
{
|
|
std::swap(left, right);
|
|
}
|
|
if (top > bottom)
|
|
{
|
|
std::swap(top, bottom);
|
|
}
|
|
|
|
left -= _dpi->x;
|
|
top -= _dpi->y;
|
|
right -= _dpi->x;
|
|
bottom -= _dpi->y;
|
|
|
|
left /= zoomLevel;
|
|
top /= zoomLevel;
|
|
right /= zoomLevel;
|
|
bottom /= zoomLevel;
|
|
|
|
left += _clipLeft;
|
|
top += _clipTop;
|
|
right += _clipLeft;
|
|
bottom += _clipTop;
|
|
|
|
DrawImageCommand command = {};
|
|
|
|
command.mask = true;
|
|
|
|
command.clip[0] = _clipLeft;
|
|
command.clip[1] = _clipTop;
|
|
command.clip[2] = _clipRight;
|
|
command.clip[3] = _clipBottom;
|
|
|
|
command.texMask = textureMask;
|
|
command.texColour = textureColour;
|
|
|
|
command.bounds[0] = left;
|
|
command.bounds[1] = top;
|
|
command.bounds[2] = right;
|
|
command.bounds[3] = bottom;
|
|
|
|
_commandBuffers.images.push_back(command);
|
|
}
|
|
|
|
void OpenGLDrawingContext::DrawSpriteSolid(uint32 image, sint32 x, sint32 y, uint8 colour)
|
|
{
|
|
vec4f paletteColour = _engine->GLPalette[colour & 0xFF];
|
|
|
|
int g1Id = image & 0x7FFFF;
|
|
rct_g1_element * g1Element = gfx_get_g1_element(g1Id);
|
|
|
|
auto texture = _textureCache->GetOrLoadImageTexture(image);
|
|
|
|
sint32 drawOffsetX = g1Element->x_offset;
|
|
sint32 drawOffsetY = g1Element->y_offset;
|
|
sint32 drawWidth = (uint16)g1Element->width;
|
|
sint32 drawHeight = (uint16)g1Element->height;
|
|
|
|
sint32 left = x + drawOffsetX;
|
|
sint32 top = y + drawOffsetY;
|
|
sint32 right = left + drawWidth;
|
|
sint32 bottom = top + drawHeight;
|
|
|
|
if (left > right)
|
|
{
|
|
std::swap(left, right);
|
|
}
|
|
if (top > bottom)
|
|
{
|
|
std::swap(top, bottom);
|
|
}
|
|
|
|
left += _offsetX;
|
|
top += _offsetY;
|
|
right += _offsetX;
|
|
bottom += _offsetY;
|
|
|
|
DrawImageCommand command = {};
|
|
|
|
command.flags = 1;
|
|
command.mask = false;
|
|
command.colour = paletteColour;
|
|
|
|
command.clip[0] = _clipLeft;
|
|
command.clip[1] = _clipTop;
|
|
command.clip[2] = _clipRight;
|
|
command.clip[3] = _clipBottom;
|
|
|
|
command.texColour = texture;
|
|
|
|
command.bounds[0] = left;
|
|
command.bounds[1] = top;
|
|
command.bounds[2] = right;
|
|
command.bounds[3] = bottom;
|
|
|
|
_commandBuffers.images.push_back(command);
|
|
}
|
|
|
|
void OpenGLDrawingContext::DrawGlyph(uint32 image, sint32 x, sint32 y, uint8 * palette)
|
|
{
|
|
int g1Id = image & 0x7FFFF;
|
|
rct_g1_element * g1Element = gfx_get_g1_element(g1Id);
|
|
|
|
auto texture = _textureCache->GetOrLoadGlyphTexture(image, palette);
|
|
|
|
sint32 drawOffsetX = g1Element->x_offset;
|
|
sint32 drawOffsetY = g1Element->y_offset;
|
|
sint32 drawWidth = (uint16)g1Element->width;
|
|
sint32 drawHeight = (uint16)g1Element->height;
|
|
|
|
sint32 left = x + drawOffsetX;
|
|
sint32 top = y + drawOffsetY;
|
|
sint32 right = left + drawWidth;
|
|
sint32 bottom = top + drawHeight;
|
|
|
|
if (left > right)
|
|
{
|
|
std::swap(left, right);
|
|
}
|
|
if (top > bottom)
|
|
{
|
|
std::swap(top, bottom);
|
|
}
|
|
|
|
left += _offsetX;
|
|
top += _offsetY;
|
|
right += _offsetX;
|
|
bottom += _offsetY;
|
|
|
|
DrawImageCommand command = {};
|
|
|
|
command.flags = 0;
|
|
command.mask = false;
|
|
|
|
command.clip[0] = _clipLeft;
|
|
command.clip[1] = _clipTop;
|
|
command.clip[2] = _clipRight;
|
|
command.clip[3] = _clipBottom;
|
|
|
|
command.texColour = texture;
|
|
|
|
command.bounds[0] = left;
|
|
command.bounds[1] = top;
|
|
command.bounds[2] = right;
|
|
command.bounds[3] = bottom;
|
|
|
|
_commandBuffers.images.push_back(command);
|
|
}
|
|
|
|
void OpenGLDrawingContext::FlushCommandBuffers() {
|
|
FlushRectangles();
|
|
FlushLines();
|
|
|
|
FlushImages();
|
|
}
|
|
|
|
void OpenGLDrawingContext::FlushRectangles() {
|
|
for (const auto& command : _commandBuffers.rectangles) {
|
|
_fillRectShader->Use();
|
|
_fillRectShader->SetFlags(command.flags);
|
|
_fillRectShader->SetSourceFramebuffer(command.sourceFramebuffer);
|
|
_fillRectShader->SetColour(0, command.colours[0]);
|
|
_fillRectShader->SetColour(1, command.colours[1]);
|
|
_fillRectShader->SetClip(command.clip[0], command.clip[1], command.clip[2], command.clip[3]);
|
|
_fillRectShader->Draw(command.bounds[0], command.bounds[1], command.bounds[2], command.bounds[3]);
|
|
}
|
|
|
|
_commandBuffers.rectangles.clear();
|
|
}
|
|
|
|
void OpenGLDrawingContext::FlushLines() {
|
|
for (const auto& command : _commandBuffers.lines) {
|
|
_drawLineShader->Use();
|
|
_drawLineShader->SetColour(command.colour);
|
|
_drawLineShader->SetClip(command.clip[0], command.clip[1], command.clip[2], command.clip[3]);
|
|
_drawLineShader->Draw(command.pos[0], command.pos[1], command.pos[2], command.pos[3]);
|
|
}
|
|
|
|
_commandBuffers.lines.clear();
|
|
}
|
|
|
|
void OpenGLDrawingContext::FlushImages() {
|
|
if (_commandBuffers.images.size() == 0) return;
|
|
|
|
OpenGLAPI::SetTexture(0, GL_TEXTURE_2D_ARRAY, _textureCache->GetAtlasesTexture());
|
|
|
|
std::vector<DrawImageInstance> instances;
|
|
instances.reserve(_commandBuffers.images.size());
|
|
|
|
for (const auto& command : _commandBuffers.images) {
|
|
DrawImageInstance instance;
|
|
|
|
instance.clip = {command.clip[0], command.clip[1], command.clip[2], command.clip[3]};
|
|
instance.texColourAtlas = command.texColour.index;
|
|
instance.texColourBounds = command.texColour.normalizedBounds;
|
|
instance.texMaskAtlas = command.texMask.index;
|
|
instance.texMaskBounds = command.texMask.normalizedBounds;
|
|
instance.flags = command.flags;
|
|
instance.colour = command.colour;
|
|
instance.bounds = {command.bounds[0], command.bounds[1], command.bounds[2], command.bounds[3]};
|
|
instance.mask = command.mask;
|
|
|
|
instances.push_back(instance);
|
|
}
|
|
|
|
_drawImageShader->Use();
|
|
_drawImageShader->DrawInstances(instances);
|
|
|
|
_commandBuffers.images.clear();
|
|
}
|
|
|
|
void OpenGLDrawingContext::SetDPI(rct_drawpixelinfo * dpi)
|
|
{
|
|
rct_drawpixelinfo * screenDPI = _engine->GetDPI();
|
|
size_t bitsSize = (size_t)screenDPI->height * (size_t)(screenDPI->width + screenDPI->pitch);
|
|
size_t bitsOffset = (size_t)(dpi->bits - screenDPI->bits);
|
|
|
|
assert(bitsOffset < bitsSize);
|
|
|
|
_clipLeft = bitsOffset % (screenDPI->width + screenDPI->pitch);
|
|
_clipTop = bitsOffset / (screenDPI->width + screenDPI->pitch);
|
|
|
|
_clipRight = _clipLeft + dpi->width;
|
|
_clipBottom = _clipTop + dpi->height;
|
|
_offsetX = _clipLeft - dpi->x;
|
|
_offsetY = _clipTop - dpi->y;
|
|
|
|
_dpi = dpi;
|
|
}
|
|
|
|
#endif /* DISABLE_OPENGL */
|