render-queue.h

// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: 2025-2026 Manuel Osorio
#pragma once
#include "flint/graphics/types/custom-draw-fn.h"
#include "flint/graphics/types/primitive-types.h"
#include "flint/math/types.h"
 
#include <span>
 
namespace Flint {
  class GPUTexture;
  struct FrameData;
 
  class RenderQueue {
    public:
      explicit RenderQueue(FrameData &frame, const FloatRect &cameraView)
        : m_frame(frame),
          m_cameraView(cameraView) {
      }
 
      void deferUpload(UploadCallbackFn fn);
 
      void quad(GPUTexture *texture, const FloatRect &dst, const FloatRect &srcUV, Color tint,
                float rotation = 0.f, Vec2f origin = {0.f, 0.f});
      void solidQuad(const FloatRect &dst, Color tint, float rotation = 0.f,
                     Vec2f origin = {0.f, 0.f});
      void circle(GPUTexture *texture, Vec2f center, float radius, Color tint, float rotation = 0.f,
                  float innerRadius = 0.f);
 
      void lines(std::span<const PrimitiveVertex> verts, PrimitiveType type);
 
      void custom(CustomDrawFn fn);
 
      FloatRect getCameraView() const {
        return m_cameraView;
      }
 
    private:
      FrameData       &m_frame;       
      const FloatRect &m_cameraView;  
 
      void pushQuad(SDL_GPUTexture *texture, SDL_GPUSampler *sampler, const FloatRect &dst,
                    const FloatRect &srcUV, Color tint, float rotation, Vec2f origin,
                    Vec2f shapeParams = {0.f, 0.f});
  };
}