mirror of
https://git.do.srb2.org/STJr/UltimateZoneBuilder.git
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86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
/*
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** BuilderNative Renderer
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** Copyright (c) 2019 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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*/
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#include "Precomp.h"
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#include "GLVertexBuffer.h"
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#include "GLShader.h"
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#include "GLRenderDevice.h"
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GLuint GLSharedVertexBuffer::GetBuffer()
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{
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if (mBuffer == 0)
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glGenBuffers(1, &mBuffer);
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return mBuffer;
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}
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GLuint GLSharedVertexBuffer::GetVAO()
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{
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if (!mVAO)
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{
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glGenVertexArrays(1, &mVAO);
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glBindVertexArray(mVAO);
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glBindBuffer(GL_ARRAY_BUFFER, GetBuffer());
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if (Format == VertexFormat::Flat)
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SetupFlatVAO();
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else
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SetupWorldVAO();
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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}
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return mVAO;
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}
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void GLSharedVertexBuffer::SetupFlatVAO()
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{
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glEnableVertexAttribArray((int)DeclarationUsage::Position);
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glEnableVertexAttribArray((int)DeclarationUsage::Color);
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glEnableVertexAttribArray((int)DeclarationUsage::TextureCoordinate);
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glVertexAttribPointer((int)DeclarationUsage::Position, 3, GL_FLOAT, GL_FALSE, VertexBuffer::FlatStride, (const void*)0);
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glVertexAttribPointer((int)DeclarationUsage::Color, GL_BGRA, GL_UNSIGNED_BYTE, GL_TRUE, VertexBuffer::FlatStride, (const void*)12);
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glVertexAttribPointer((int)DeclarationUsage::TextureCoordinate, 2, GL_FLOAT, GL_FALSE, VertexBuffer::FlatStride, (const void*)16);
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}
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void GLSharedVertexBuffer::SetupWorldVAO()
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{
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glEnableVertexAttribArray((int)DeclarationUsage::Position);
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glEnableVertexAttribArray((int)DeclarationUsage::Color);
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glEnableVertexAttribArray((int)DeclarationUsage::TextureCoordinate);
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glEnableVertexAttribArray((int)DeclarationUsage::Normal);
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glVertexAttribPointer((int)DeclarationUsage::Position, 3, GL_FLOAT, GL_FALSE, VertexBuffer::WorldStride, (const void*)0);
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glVertexAttribPointer((int)DeclarationUsage::Color, GL_BGRA, GL_UNSIGNED_BYTE, GL_TRUE, VertexBuffer::WorldStride, (const void*)12);
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glVertexAttribPointer((int)DeclarationUsage::TextureCoordinate, 2, GL_FLOAT, GL_FALSE, VertexBuffer::WorldStride, (const void*)16);
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glVertexAttribPointer((int)DeclarationUsage::Normal, 3, GL_FLOAT, GL_FALSE, VertexBuffer::WorldStride, (const void*)24);
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}
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/////////////////////////////////////////////////////////////////////////////
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GLVertexBuffer::~GLVertexBuffer()
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{
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Finalize();
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}
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void GLVertexBuffer::Finalize()
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{
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if (Device)
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{
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Device->mSharedVertexBuffers[(int)Format]->VertexBuffers.erase(ListIt);
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Device = nullptr;
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}
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}
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