mirror of https://github.com/Xaymar/obs-StreamFX
114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
/*
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* Modern effects for a modern Streamer
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* Copyright (C) 2017 Michael Fabian Dirks
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "gs-helper.h"
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Helper::VertexBuffer::VertexBuffer(size_t maxVertices) {
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m_positions.resize(maxVertices);
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m_normals.resize(maxVertices);
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m_tangents.resize(maxVertices);
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m_colors.resize(maxVertices);
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m_uvs.resize(8);
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m_uvArrays.resize(8);
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for (size_t idx = 0; idx < 8; idx++) {
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m_uvs[idx].resize(maxVertices);
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m_uvArrays[idx].width = 2;
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m_uvArrays[idx].array = m_uvs[idx].data();
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}
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m_vertexData = gs_vbdata_create();
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m_vertexData->num = maxVertices;
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m_vertexData->points = m_positions.data();
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m_vertexData->normals = m_normals.data();
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m_vertexData->tangents = m_normals.data();
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m_vertexData->colors = m_colors.data();
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m_vertexData->num_tex = m_uvs.size();
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m_vertexData->tvarray = m_uvArrays.data();
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m_vertexBuffer = gs_vertexbuffer_create(m_vertexData, GS_DYNAMIC);
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}
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Helper::VertexBuffer::~VertexBuffer() {
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std::memset(m_vertexData, 0, sizeof(gs_vb_data));
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gs_vertexbuffer_destroy(m_vertexBuffer);
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}
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void Helper::VertexBuffer::set_uv_layers(size_t count) {
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size_t realcount = count > 8 ? 8 : count;
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m_uvs.resize(realcount);
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}
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size_t Helper::VertexBuffer::get_uv_layers() {
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return m_uvs.size();
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}
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gs_vertbuffer_t* Helper::VertexBuffer::update() {
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// Update Buffers
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size_t verts = this->size();
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m_positions.resize(verts);
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m_normals.resize(verts);
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m_tangents.resize(verts);
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m_colors.resize(verts);
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for (size_t layer = 0; layer < m_uvs.size(); layer++) {
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m_uvs[layer].resize(verts);
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m_uvArrays[layer].width = 2;
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m_uvArrays[layer].array = m_uvs[layer].data();
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}
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// Prepare Vertex Data
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for (size_t vert = 0; vert < verts; vert++) {
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Vertex& v = this->at(vert);
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vec3_copy(&(m_positions.at(vert)), &v.position);
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vec3_copy(&(m_normals.at(vert)), &v.normal);
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vec3_copy(&(m_tangents.at(vert)), &v.tangent);
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m_colors[vert] = v.color;
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for (size_t layer = 0; layer < m_uvs.size(); layer++) {
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vec2_copy(&m_uvs[layer][vert], &v.uv[layer]);
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}
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}
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// Upload to GPU
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m_vertexData->num = verts;
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m_vertexData->points = m_positions.data();
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m_vertexData->normals = m_normals.data();
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m_vertexData->tangents = m_normals.data();
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m_vertexData->colors = m_colors.data();
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m_vertexData->num_tex = m_uvArrays.size();
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m_vertexData->tvarray = m_uvArrays.data();
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gs_vertexbuffer_flush(m_vertexBuffer);
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return m_vertexBuffer;
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}
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Helper::Vertex::Vertex() {
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position.x =
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position.y =
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position.z =
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normal.x =
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normal.y =
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normal.z =
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tangent.x =
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tangent.y =
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tangent.z = 0;
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color = 0;
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for (size_t idx = 0; idx < 8; idx++) {
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uv[idx].x = uv[idx].y = 0;
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}
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}
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