94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
#include <camera/camera.hpp>
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#include <renderer/buffers.hpp>
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#include <renderer/programs/texture.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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TextureRendererProgram::TextureRendererProgram(
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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_shader(std::move(shader))
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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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{
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// #todo: don't use relative path
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// AssetManager::load_shader(
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// "LT_ENGINE_RESOURCES_TEXTURE_SHADER",
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// "data/assets/shaders/texture/vs.asset",
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// "data/assets/shaders/texture/ps.asset"
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// );
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//
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// AssetManager::load_shader(
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// "LT_ENGINE_RESOURCES_TINTED_TEXTURE_SHADER",
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// "data/assets/shaders/tinted_texture/vs.asset",
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// "data/assets/shaders/tinted_texture/ps.asset"
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// );
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//
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// AssetManager::load_shader(
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// "LT_ENGINE_RESOURCES_QUAD_SHADER",
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// "data/assets/shaders/quads/vs.asset",
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// "data/assets/shaders/quads/ps.asset"
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// );
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//
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// m_shader = AssetManager::get_shader("LT_ENGINE_RESOURCES_TEXTURE_SHADER");
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// m_shader = AssetManager::get_shader("LT_ENGINE_RESOURCES_TINTED_TEXTURE_SHADER");
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// m_shader = AssetManager::get_shader("LT_ENGINE_RESOURCES_QUAD_SHADER");
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m_vertex_buffer = Ref<VertexBuffer>(
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VertexBuffer::create(nullptr, sizeof(TextureVertexData), 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 }, { "TEXCOORD", VertexElementType::Float2 } },
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shared_context
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));
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}
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auto TextureRendererProgram::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 TextureRendererProgram::map()
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{
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m_map = std::span<TextureVertexData> {
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static_cast<TextureVertexData *>(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 TextureRendererProgram::un_map()
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{
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m_vertex_buffer->un_map();
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}
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void TextureRendererProgram::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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