97 lines
2.1 KiB
C++
97 lines
2.1 KiB
C++
#include "pch.h"
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#include "log.h"
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#include "node_image.h"
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#include "shader.h"
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ui::Plane NodeImage::m_plane;
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Sampler NodeImage::m_sampler;
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void NodeImage::static_init()
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{
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m_plane.create<1>(1, 1);
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m_sampler.create();
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}
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Node* NodeImage::clone_instantiate() const
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{
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return new NodeImage();
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}
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void NodeImage::clone_copy(Node* dest) const
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{
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Node::clone_copy(dest);
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NodeImage* n = static_cast<NodeImage*>(dest);
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n->m_use_atlas = m_use_atlas;
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n->m_region = m_region;
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n->m_off = m_off;
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n->m_sz = m_sz;
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n->m_path = m_path;
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n->m_tex_id = m_tex_id;
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}
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void NodeImage::create()
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{
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if (!m_path.empty() && TextureManager::load(m_path.c_str(), m_use_mipmaps))
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{
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//LOG("load image node %s", m_path.c_str());
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auto tex_sz = TextureManager::get(m_tex_id).size();
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m_off = m_region.xy / tex_sz;
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m_sz = (m_region.zw - m_region.xy) / tex_sz;
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}
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}
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void NodeImage::restore_context()
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{
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Node::restore_context();
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create();
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}
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void NodeImage::parse_attributes(kAttribute ka, const tinyxml2::XMLAttribute* attr)
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{
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Node::parse_attributes(ka, attr);
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switch (ka)
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{
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case kAttribute::Path:
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m_path = attr->Value();
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m_tex_id = const_hash(attr->Value());
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break;
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case kAttribute::Region:
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{
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glm::vec4 v;
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int n = sscanf(attr->Value(), "%f %f %f %f", &v.x, &v.y, &v.z, &v.w);
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if (n == 4)
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{
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m_region = v;
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m_use_atlas = true;
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}
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break;
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}
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default:
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break;
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}
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}
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void NodeImage::draw()
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{
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using namespace ui;
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TextureManager::get(m_tex_id).bind();
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m_sampler.bind(0);
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glEnable(GL_BLEND);
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if (m_use_atlas)
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{
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ui::ShaderManager::use(kShader::Atlas);
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ui::ShaderManager::u_vec2(kShaderUniform::Tof, m_off);
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ui::ShaderManager::u_vec2(kShaderUniform::Tsz, m_sz);
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}
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else
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{
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ui::ShaderManager::use(kShader::Texture);
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}
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ui::ShaderManager::u_int(kShaderUniform::Tex, 0);
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ui::ShaderManager::u_mat4(kShaderUniform::MVP, m_mvp);
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m_plane.draw_fill();
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m_sampler.unbind();
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TextureManager::get(m_tex_id).unbind();
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glDisable(GL_BLEND);
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}
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