Implement clipping

2026-09-08 21:15:21 +02:00
parent aec9083ebb
commit 0dbf430c0c
16 changed files with 66 additions and 9 deletions
@@ -65,6 +65,7 @@ class PD_API GfxDriver : public DriverInterface {
  virtual void SysReset() {}
  virtual void Submit(size_t count, size_t start) {}
  virtual void UploadPools() {}  // not every driver requires it
+  virtual void ClipRect() {}
  void RegisterTexture(const Li::Texture& tex);
  void UnregisterTexture(const Li::Texture& tex);

@@ -80,6 +81,8 @@ class PD_API GfxDriver : public DriverInterface {
  // State Variables oder so
  TextureID CurrentTex = 0;
  bool CurrentTexIsSDF = false;
+  bool CurrentHasClip = false;
+  fvec4 CurrentClip = 0;
  Mat4 Projection;
  ivec2 ViewPort;
  std::unordered_map<TextureID, Li::Texture> pTextureRegestry;
@@ -136,7 +139,7 @@ class GfxDriverBase : public GfxDriver {
    for (size_t i = 0; i < commands.size(); i++) {
      const auto& cmd = commands[i];
      if (cmd.VertexCount > 0) {
-        std::memcpy(pVtxPool.begin() + current_vtx,
+        std::memcpy(reinterpret_cast<void*>(pVtxPool.begin() + current_vtx),
                    vpool.begin() + cmd.FirstVertex,
                    cmd.VertexCount * sizeof(Li::Vertex));
      }
@@ -156,14 +159,19 @@ class GfxDriverBase : public GfxDriver {
    while (index < commands.size()) {
      CurrentTex = commands[index].Tex;
      CurrentTexIsSDF = commands[index].SDF;
+      CurrentHasClip = commands[index].ClipRectUsed;
+      CurrentClip = commands[index].ClipRect;
      if (!CurrentTex) {
        CurrentTex = pWhite.GetID();
      }
      size_t num_indices = 0;
+      ClipRect();
      while (index < commands.size() &&
             CurrentTexIsSDF == commands[index].SDF &&
             (CurrentTex == commands[index].Tex ||
-              (CurrentTex == pWhite.GetID() && commands[index].Tex == 0))) {
+              (CurrentTex == pWhite.GetID() && commands[index].Tex == 0)) &&
+             CurrentClip == commands[index].ClipRect &&
+             CurrentHasClip == commands[index].ClipRectUsed) {
        num_indices += commands[index].IndexCount;
        index++;
      }