71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
#include <camera/camera.hpp>
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#include <renderer/buffers.hpp>
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#include <renderer/programs/quad.hpp>
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#include <renderer/shader.hpp>
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#include <renderer/vertex_layout.hpp>
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namespace lt {
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QuadRendererProgram::QuadRendererProgram(
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unsigned int max_vertices,
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const Ref<SharedContext> &shared_context,
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Ref<Shader> shader
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)
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: m_index_buffer(nullptr)
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, m_vertex_layout(nullptr)
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, m_max_vertices(max_vertices)
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, m_shader(std::move(shader))
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{
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m_vertex_buffer = Ref<VertexBuffer>(
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VertexBuffer::create(nullptr, sizeof(QuadVertexData), max_vertices, shared_context)
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);
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m_index_buffer = Ref<IndexBuffer>(
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IndexBuffer::create(nullptr, (max_vertices / 4) * 6, shared_context)
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);
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m_vertex_layout = Ref<VertexLayout>(VertexLayout::create(
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m_vertex_buffer,
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m_shader,
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{ { "POSITION", VertexElementType::Float4 }, { "COLOR", VertexElementType::Float4 } },
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shared_context
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));
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}
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auto QuadRendererProgram::advance() -> bool
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{
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m_idx += 4;
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if (m_idx >= m_map.size())
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{
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log_wrn("'VertexBuffer' map went beyond 'MaxVertices': {}", m_max_vertices);
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return false;
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}
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m_quad_count++;
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return true;
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}
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void QuadRendererProgram::map()
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{
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m_map = std::span<QuadVertexData> {
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static_cast<QuadRendererProgram::QuadVertexData *>(m_vertex_buffer->map()),
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m_max_vertices,
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};
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m_quad_count = 0u;
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m_idx = {};
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}
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void QuadRendererProgram::un_map()
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{
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m_vertex_buffer->un_map();
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m_idx = {};
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}
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void QuadRendererProgram::bind()
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{
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m_shader->bind();
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m_vertex_layout->bind();
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m_vertex_buffer->bind();
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m_index_buffer->bind();
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}
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} // namespace lt
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