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95f917a408
All games combined there's 11(!!!) scene render blocks, not counting the sub-blocks for ROR and mirrors. Does it surprise anyone that most of these sub-blocks do not feature all engine capabilities?
138 lines
4.9 KiB
C++
138 lines
4.9 KiB
C++
/*
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** hw_flatvertices.cpp
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** Creates flat vertex data for hardware rendering.
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**
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**---------------------------------------------------------------------------
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** Copyright 2010-2020 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "c_cvars.h"
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#include "flatvertices.h"
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#include "v_video.h"
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#include "cmdlib.h"
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#include "hwrenderer/data/buffers.h"
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FFlatVertexBuffer::FFlatVertexBuffer(int width, int height)
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{
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vbo_shadowdata.Resize(NUM_RESERVED);
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// the first quad is reserved for handling coordinates through uniforms.
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vbo_shadowdata[0].Set(0, 0, 0, 0, 0);
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vbo_shadowdata[1].Set(1, 0, 0, 0, 0);
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vbo_shadowdata[2].Set(2, 0, 0, 0, 0);
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vbo_shadowdata[3].Set(3, 0, 0, 0, 0);
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// and the second one for the fullscreen quad used for blend overlays.
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vbo_shadowdata[4].Set(0, 0, 0, 0, 0);
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vbo_shadowdata[5].Set(0, (float)height, 0, 0, 1);
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vbo_shadowdata[6].Set((float)width, 0, 0, 1, 0);
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vbo_shadowdata[7].Set((float)width, (float)height, 0, 1, 1);
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// and this is for the postprocessing copy operation
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vbo_shadowdata[8].Set(-1.0f, -1.0f, 0, 0.0f, 0.0f);
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vbo_shadowdata[9].Set(-1.0f, 1.0f, 0, 0.0f, 1.f);
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vbo_shadowdata[10].Set(1.0f, -1.0f, 0, 1.f, 0.0f);
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vbo_shadowdata[11].Set(1.0f, 1.0f, 0, 1.f, 1.f);
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// The next two are the stencil caps.
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vbo_shadowdata[12].Set(-32767.0f, 32767.0f, -32767.0f, 0, 0);
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vbo_shadowdata[13].Set(-32767.0f, 32767.0f, 32767.0f, 0, 0);
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vbo_shadowdata[14].Set(32767.0f, 32767.0f, 32767.0f, 0, 0);
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vbo_shadowdata[15].Set(32767.0f, 32767.0f, -32767.0f, 0, 0);
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vbo_shadowdata[16].Set(-32767.0f, -32767.0f, -32767.0f, 0, 0);
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vbo_shadowdata[17].Set(-32767.0f, -32767.0f, 32767.0f, 0, 0);
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vbo_shadowdata[18].Set(32767.0f, -32767.0f, 32767.0f, 0, 0);
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vbo_shadowdata[19].Set(32767.0f, -32767.0f, -32767.0f, 0, 0);
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mVertexBuffer = screen->CreateVertexBuffer();
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mIndexBuffer = screen->CreateIndexBuffer();
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unsigned int bytesize = BUFFER_SIZE * sizeof(FFlatVertex);
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mVertexBuffer->SetData(bytesize, nullptr, false);
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static const FVertexBufferAttribute format[] = {
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{ 0, VATTR_VERTEX, VFmt_Float3, (int)myoffsetof(FFlatVertex, x) },
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{ 0, VATTR_TEXCOORD, VFmt_Float2, (int)myoffsetof(FFlatVertex, u) }
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};
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mVertexBuffer->SetFormat(1, 2, sizeof(FFlatVertex), format);
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mIndex = mCurIndex = 0;
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mNumReserved = NUM_RESERVED;
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Copy(0, NUM_RESERVED);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FFlatVertexBuffer::~FFlatVertexBuffer()
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{
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delete mIndexBuffer;
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delete mVertexBuffer;
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mIndexBuffer = nullptr;
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mVertexBuffer = nullptr;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FFlatVertexBuffer::OutputResized(int width, int height)
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{
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vbo_shadowdata[4].Set(0, 0, 0, 0, 0);
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vbo_shadowdata[5].Set(0, (float)height, 0, 0, 1);
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vbo_shadowdata[6].Set((float)width, 0, 0, 1, 0);
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vbo_shadowdata[7].Set((float)width, (float)height, 0, 1, 1);
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Copy(4, 4);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FFlatVertexBuffer::Copy(int start, int count)
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{
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Map();
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memcpy(GetBuffer(start), &vbo_shadowdata[0], count * sizeof(FFlatVertex));
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Unmap();
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}
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