mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-24 12:25:11 +00:00
207 lines
6.5 KiB
C++
207 lines
6.5 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-texture.h"
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#include <stdexcept>
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#include <sys/stat.h>
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#include <fstream>
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extern "C" {
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#pragma warning( push )
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#pragma warning( disable: 4201 )
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#include <libobs/util/platform.h>
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#include <libobs/obs.h>
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#pragma warning( pop )
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}
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GS::Texture::Texture(uint32_t width, uint32_t height, gs_color_format format, uint32_t mip_levels, const uint8_t **mip_data, uint32_t flags) {
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if (width == 0)
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throw std::logic_error("width must be at least 1");
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if (height == 0)
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throw std::logic_error("height must be at least 1");
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if (mip_levels == 0)
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throw std::logic_error("mip_levels must be at least 1");
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if (!mip_data)
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throw std::logic_error("mip_data is invalid");
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if (mip_levels > 1 || flags & Flags::BuildMipMaps) {
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bool isPOT = (pow(2, (int64_t)floor(log(width) / log(2))) == width)
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&& (pow(2, (int64_t)floor(log(height) / log(2))) == height);
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if (!isPOT)
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throw std::logic_error("mip mapping requires power of two dimensions");
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}
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obs_enter_graphics();
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m_texture = gs_texture_create(width, height, format, mip_levels, mip_data, (flags & Flags::Dynamic) ? GS_DYNAMIC : 0 | (flags & Flags::BuildMipMaps) ? GS_BUILD_MIPMAPS : 0);
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obs_leave_graphics();
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if (!m_texture)
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throw std::runtime_error("Failed to create texture.");
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}
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GS::Texture::Texture(uint32_t width, uint32_t height, uint32_t depth, gs_color_format format, uint32_t mip_levels, const uint8_t **mip_data, uint32_t flags) {
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if (width == 0)
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throw std::logic_error("width must be at least 1");
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if (height == 0)
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throw std::logic_error("height must be at least 1");
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if (depth == 0)
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throw std::logic_error("depth must be at least 1");
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if (mip_levels == 0)
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throw std::logic_error("mip_levels must be at least 1");
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if (!mip_data)
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throw std::logic_error("mip_data is invalid");
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if (mip_levels > 1 || flags & Flags::BuildMipMaps) {
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bool isPOT = (pow(2, (int64_t)floor(log(width) / log(2))) == width)
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&& (pow(2, (int64_t)floor(log(height) / log(2))) == height)
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&& (pow(2, (int64_t)floor(log(depth) / log(2))) == depth);
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if (!isPOT)
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throw std::logic_error("mip mapping requires power of two dimensions");
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}
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obs_enter_graphics();
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m_texture = gs_voltexture_create(width, height, depth, format, mip_levels, mip_data, (flags & Flags::Dynamic) ? GS_DYNAMIC : 0 | (flags & Flags::BuildMipMaps) ? GS_BUILD_MIPMAPS : 0);
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obs_leave_graphics();
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if (!m_texture)
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throw std::runtime_error("Failed to create texture.");
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}
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GS::Texture::Texture(uint32_t size, gs_color_format format, uint32_t mip_levels, const uint8_t **mip_data, uint32_t flags) {
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if (size == 0)
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throw std::logic_error("size must be at least 1");
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if (mip_levels == 0)
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throw std::logic_error("mip_levels must be at least 1");
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if (!mip_data)
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throw std::logic_error("mip_data is invalid");
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if (mip_levels > 1 || flags & Flags::BuildMipMaps) {
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bool isPOT = (pow(2, (int64_t)floor(log(size) / log(2))) == size);
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if (!isPOT)
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throw std::logic_error("mip mapping requires power of two dimensions");
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}
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obs_enter_graphics();
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m_texture = gs_cubetexture_create(size, format, mip_levels, mip_data, (flags & Flags::Dynamic) ? GS_DYNAMIC : 0 | (flags & Flags::BuildMipMaps) ? GS_BUILD_MIPMAPS : 0);
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obs_leave_graphics();
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if (!m_texture)
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throw std::runtime_error("Failed to create texture.");
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}
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GS::Texture::Texture(std::string file) {
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struct stat st;
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if (os_stat(file.c_str(), &st) != 0)
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throw std::ios_base::failure(file);
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obs_enter_graphics();
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m_texture = gs_texture_create_from_file(file.c_str());
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obs_leave_graphics();
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if (!m_texture)
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throw std::runtime_error("Failed to load texture.");
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}
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GS::Texture::Texture(Texture& other) {
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throw std::logic_error("not yet implemented");
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//obs_enter_graphics();
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//switch (gs_get_texture_type(other.m_texture)) {
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// case GS_TEXTURE_2D:
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// uint32_t width = gs_texture_get_width(other.m_texture);
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// uint32_t height = gs_texture_get_height(other.m_texture);
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// gs_color_format format = gs_texture_get_color_format(other.m_texture);
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// uint32_t mult = 0;
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// switch (format) {
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// case GS_A8:
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// case GS_R8:
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// mult = 1;
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// break;
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// case GS_R16:
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// case GS_R16F:
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// mult = 2;
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// break;
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// case GS_RG16F:
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// case GS_R32F:
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// case GS_BGRA:
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// case GS_BGRX:
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// case GS_RGBA:
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// case GS_R10G10B10A2:
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// mult = 4;
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// break;
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// case GS_RGBA16:
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// case GS_RGBA16F:
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// case GS_RG32F:
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// mult = 8;
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// break;
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// case GS_RGBA32F:
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// mult = 16;
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// break;
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// case GS_DXT1:
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// case GS_DXT3:
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// case GS_DXT5:
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// mult = 8;
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// break;
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// }
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// uint8_t* buf = new uint8_t[width * height * mult];
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// m_texture = gs_texture_create(width, height, format,
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// 1, &buf);
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// delete buf;
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// break;
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// case GS_TEXTURE_3D:
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// uint32_t width = gs_voltexture_get_width(other.m_texture);
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// uint32_t height = gs_voltexture_get_height(other.m_texture);
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// uint32_t depth = gs_voltexture_get_height(other.m_texture);
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// gs_color_format format = gs_voltexture_get_color_format(other.m_texture);
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// break;
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// case GS_TEXTURE_CUBE:
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// uint32_t size = gs_cubetexture_get_size(other.m_texture);
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// gs_color_format format = gs_cubetexture_get_color_format(other.m_texture);
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// gs_copy_texture()
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// break;
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//}
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//obs_leave_graphics();
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}
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GS::Texture::~Texture() {
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if (m_texture) {
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obs_enter_graphics();
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switch (gs_get_texture_type(m_texture)) {
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case GS_TEXTURE_2D:
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gs_texture_destroy(m_texture);
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break;
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case GS_TEXTURE_3D:
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gs_voltexture_destroy(m_texture);
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break;
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case GS_TEXTURE_CUBE:
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gs_cubetexture_destroy(m_texture);
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break;
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}
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obs_leave_graphics();
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}
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m_texture = nullptr;
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}
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void GS::Texture::Load(int unit) {
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obs_enter_graphics();
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gs_load_texture(m_texture, unit);
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obs_leave_graphics();
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}
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gs_texture_t* GS::Texture::GetObject() {
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return m_texture;
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}
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