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https://github.com/Xaymar/obs-StreamFX
synced 2024-11-10 22:05:06 +00:00
util: Add SourceTexture utility
This utility class is used to quickly render and retrieve a Texture from a source. It should be used in place of manual rendering since it can be updated quickly, fixing outstanding issue in all places of the plugin instead of just one.
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3 changed files with 111 additions and 0 deletions
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@ -52,6 +52,7 @@ SET(obs-stream-effects_HEADERS
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"${PROJECT_SOURCE_DIR}/source/strings.h"
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"${PROJECT_SOURCE_DIR}/source/util-math.h"
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"${PROJECT_SOURCE_DIR}/source/util-memory.h"
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"${PROJECT_SOURCE_DIR}/source/util-source-texture.h"
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)
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SET(obs-stream-effects_SOURCES
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"${PROJECT_SOURCE_DIR}/source/plugin.cpp"
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@ -72,6 +73,7 @@ SET(obs-stream-effects_SOURCES
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"${PROJECT_SOURCE_DIR}/source/gs-vertexbuffer.cpp"
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"${PROJECT_SOURCE_DIR}/source/util-math.cpp"
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"${PROJECT_SOURCE_DIR}/source/util-memory.cpp"
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"${PROJECT_SOURCE_DIR}/source/util-source-texture.cpp"
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)
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SET(obs-stream-effects_LOCALE
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"${PROJECT_SOURCE_DIR}/data/locale/en-US.ini"
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70
source/util-source-texture.cpp
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70
source/util-source-texture.cpp
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@ -0,0 +1,70 @@
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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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#include "util-source-texture.h"
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util::SourceTexture::~SourceTexture() {
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if (m_source) {
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obs_source_release(m_source);
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m_source = nullptr;
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}
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m_rt = nullptr;
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}
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util::SourceTexture::SourceTexture() {
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m_rt = std::make_shared<GS::RenderTarget>(GS_RGBA, GS_ZS_NONE);
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}
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util::SourceTexture::SourceTexture(const char* name) : SourceTexture() {
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m_source = obs_get_source_by_name(name);
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if (!m_source) {
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throw std::invalid_argument("No such source.");
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}
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}
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util::SourceTexture::SourceTexture(std::string name) : SourceTexture(name.c_str()) {}
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util::SourceTexture::SourceTexture(obs_source_t* src) : SourceTexture() {
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m_source = src;
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if (!m_source) {
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throw std::invalid_argument("No such source.");
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}
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}
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std::shared_ptr<GS::Texture> util::SourceTexture::Render(size_t width, size_t height) {
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if (!m_source) {
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throw std::invalid_argument("Missing source to render.");
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}
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if ((width == 0) || (width >= 16384)) {
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throw std::runtime_error("Width too large or too small.");
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}
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if ((height == 0) || (height >= 16384)) {
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throw std::runtime_error("Height too large or too small.");
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}
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{
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auto op = m_rt->Render((uint32_t)width, (uint32_t)height);
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vec4 black; vec4_zero(&black);
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gs_ortho(0, (float_t)width, 0, (float_t)height, 0, 1);
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gs_clear(GS_CLEAR_COLOR, &black, 0, 0);
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obs_source_video_render(m_source);
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}
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std::shared_ptr<GS::Texture> tex;
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m_rt->GetTexture(tex);
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return tex;
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}
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39
source/util-source-texture.h
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39
source/util-source-texture.h
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@ -0,0 +1,39 @@
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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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#pragma once
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#include <string>
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#include <obs.h>
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#include <memory>
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#include "gs-texture.h"
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#include "gs-rendertarget.h"
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namespace util {
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class SourceTexture {
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obs_source_t* m_source;
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std::shared_ptr<GS::RenderTarget> m_rt;
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SourceTexture();
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public:
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~SourceTexture();
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SourceTexture(const char* name);
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SourceTexture(std::string name);
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SourceTexture(obs_source_t* src);
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std::shared_ptr<GS::Texture> Render(size_t width, size_t height);
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};
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}
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