Add LayerOptimisation / QoL change

- add support for Alpha only textures in rendering

backends/3ds/include/pd-3ds.hpp

@@ -28,5 +28,6 @@ SOFTWARE.
 #include <pd-3ds/bknd-hid.hpp>
 
 namespace PD {
+PD::Li::Font::Ref LoadSystemFont();
 void Init(void* data = nullptr);
-}
+}  // namespace PD

backends/3ds/source/bknd-gfx.cpp

@@ -82,6 +82,27 @@ int GetBPP(Li::Texture::Type type) {
   return 0;  // Error
 }
 
+void FragCfg(GPU_TEXCOLOR clr) {
+  C3D_DepthTest(false, GPU_GREATER, GPU_WRITE_ALL);
+  C3D_TexEnv* env = C3D_GetTexEnv(0);
+  C3D_TexEnvInit(env);
+  switch (clr) {
+    case GPU_A4:
+    case GPU_A8:
+    case GPU_L4:
+    case GPU_L8:
+      C3D_TexEnvSrc(env, C3D_Alpha, GPU_TEXTURE0);
+      C3D_TexEnvFunc(env, C3D_RGB, GPU_REPLACE);
+      C3D_TexEnvFunc(env, C3D_Alpha, GPU_MODULATE);
+      break;
+
+    default:
+      C3D_TexEnvSrc(env, C3D_Both, GPU_TEXTURE0);
+      C3D_TexEnvFunc(env, C3D_Both, GPU_MODULATE);
+      break;
+  }
+}
+
 void GfxC3D::Init() {
   VertexBuffer.resize(4 * 8192);
   IndexBuffer.resize(6 * 8192);
@@ -129,11 +150,6 @@ void GfxC3D::RenderDrawData(const std::vector<PD::Li::Command::Ref>& Commands) {
   C3D_FVUnifMtx4x4(GPU_VERTEX_SHADER, pLocProjection, &proj);
   // Mat4 proj = Mat4::Ortho(0.f, ViewPort.x, ViewPort.y, 0.f, 1.f, -1.f);
   // C3D_FVUnifMtx4x4(GPU_VERTEX_SHADER, pLocProjection, (C3D_Mtx*)&proj);
-  C3D_DepthTest(false, GPU_GREATER, GPU_WRITE_ALL);
-  C3D_TexEnv* env = C3D_GetTexEnv(0);
-  C3D_TexEnvInit(env);
-  C3D_TexEnvSrc(env, C3D_Both, GPU_TEXTURE0);
-  C3D_TexEnvFunc(env, C3D_Both, GPU_MODULATE);
   size_t index = 0;
   while (index < Commands.size()) {
     PD::Li::Texture::Ref Tex = Commands[index]->Tex;
@@ -166,6 +182,7 @@ void GfxC3D::RenderDrawData(const std::vector<PD::Li::Command::Ref>& Commands) {
     } else {
       C3D_SetScissor(GPU_SCISSOR_DISABLE, 0, 0, 0, 0);
     }
+    FragCfg(((C3D_Tex*)Tex->Address)->fmt);
     BindTex(Tex->Address);
     auto bufInfo = C3D_GetBufInfo();
     BufInfo_Init(bufInfo);

backends/3ds/source/pd-3ds.cpp

@@ -22,10 +22,106 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
  */
 
+#include <3ds.h>
+
 #include <palladium>
 #include <pd-3ds.hpp>
 
 namespace PD {
+PD::Li::Font::Ref LoadSystemFont() {
+  TT::Scope st("LI_SystemFont");  // Trace loading time
+  Li::Font::Ref ret = Li::Font::New();
+  fontEnsureMapped();  // Call this to be sure the font is mapped
+  // Get some const references for system font loading
+  const auto fnt = fontGetSystemFont();
+  const auto fnt_info = fontGetInfo(fnt);
+  const auto glyph_info = fontGetGlyphInfo(fnt);
+  // Resize the Texture list by the num of sysfont textures
+  ret->Textures.resize(glyph_info->nSheets + 1);
+  /// Modify the Pixel Height by 1.1f to fit the
+  /// Size og ttf font Rendering
+  ret->PixelHeight = glyph_info->cellHeight;
+  // Load the Textures and make sure they don't auto unload
+  for (size_t i = 0; i < glyph_info->nSheets; i++) {
+    auto stex = Li::Texture::New();
+    auto tx = new C3D_Tex;
+    tx->data = fontGetGlyphSheetTex(fnt, i);
+    tx->fmt = (GPU_TEXCOLOR)glyph_info->sheetFmt;
+    tx->size = glyph_info->sheetSize;
+    tx->width = glyph_info->sheetWidth;
+    tx->height = glyph_info->sheetHeight;
+    tx->param = GPU_TEXTURE_MAG_FILTER(GPU_LINEAR) |
+                GPU_TEXTURE_MIN_FILTER(GPU_LINEAR) |
+                GPU_TEXTURE_WRAP_S(GPU_REPEAT) | GPU_TEXTURE_WRAP_T(GPU_REPEAT);
+    tx->border = 0xffffffff;
+    tx->lodParam = 0;
+    stex->Address = (Li::TexAddress)tx;
+    stex->Size = fvec2(tx->width, tx->height);
+    stex->UV = fvec4(0, 1, 1, 0);
+    ret->Textures[i] = stex;
+  }
+  std::vector<unsigned int> charSet;
+  // Write the Charset into a vector
+  for (auto cmap = fnt_info->cmap; cmap; cmap = cmap->next) {
+    if (cmap->mappingMethod == CMAP_TYPE_DIRECT) {
+      if (cmap->codeEnd >= cmap->codeBegin) {
+        charSet.reserve(charSet.size() + cmap->codeEnd - cmap->codeBegin + 1);
+        for (auto i = cmap->codeBegin; i <= cmap->codeEnd; ++i) {
+          if (cmap->indexOffset + (i - cmap->codeBegin) == 0xFFFF) break;
+          charSet.emplace_back(i);
+        }
+      }
+    } else if (cmap->mappingMethod == CMAP_TYPE_TABLE) {
+      if (cmap->codeEnd >= cmap->codeBegin) {
+        charSet.reserve(charSet.size() + cmap->codeEnd - cmap->codeBegin + 1);
+        for (auto i = cmap->codeBegin; i <= cmap->codeEnd; ++i) {
+          if (cmap->indexTable[i - cmap->codeBegin] == 0xFFFF) continue;
+          charSet.emplace_back(i);
+        }
+      }
+    } else if (cmap->mappingMethod == CMAP_TYPE_SCAN) {
+      charSet.reserve(charSet.size() + cmap->nScanEntries);
+      for (unsigned i = 0; i < cmap->nScanEntries; ++i) {
+        if (cmap->scanEntries[i].code >= cmap->codeBegin &&
+            cmap->scanEntries[i].code <= cmap->codeEnd) {
+          if (cmap->scanEntries[i].glyphIndex != 0xFFFF) {
+            charSet.emplace_back(cmap->scanEntries[i].code);
+          }
+        }
+      }
+    } else {
+      continue;
+    }
+  }
+
+  // Sort the charset and make sure all values are unique
+  std::sort(charSet.begin(), charSet.end());
+  charSet.erase(std::unique(charSet.begin(), charSet.end()));
+
+  // Setup the Codepoint map by the charset
+  for (auto cp : charSet) {
+    int gidx = fontGlyphIndexFromCodePoint(fnt, cp);
+    if (gidx >= 0xFFFF) continue;
+    Li::Font::Codepoint codepoint;
+    fontGlyphPos_s dat;
+    fontCalcGlyphPos(&dat, fnt, gidx, GLYPH_POS_CALC_VTXCOORD, 1.f, 1.f);
+
+    codepoint.pCodepoint = cp;
+    codepoint.SimpleUV = fvec4(dat.texcoord.left, dat.texcoord.top,
+                               dat.texcoord.right, dat.texcoord.bottom);
+
+    if (dat.sheetIndex < (int)ret->Textures.size()) {
+      codepoint.Tex = ret->Textures[dat.sheetIndex];
+    } else {
+      codepoint.pInvalid = true;
+    }
+    codepoint.Size = fvec2(dat.vtxcoord.right, dat.vtxcoord.bottom);
+    codepoint.Offset = 0;
+    ret->CodeMap[cp] = codepoint;
+  }
+  return ret;
+}
+
 void Init(void* data) {
   // Dekstop Init Stage
   // First use default OS Driver

include/pd/lithium/drawlist.hpp

@@ -64,14 +64,22 @@ class PD_LITHIUM_API DrawList {
   /**
    * Append an input drawlist on top of this one
    * This Function will clear the Input list to make sure
-   * THat the moved memory blocks don't get used
+   * That the moved memory blocks don't get used
    * @param list DrawList to move into current
    */
   void Merge(DrawList::Ref list);
+  /**
+   * Optimize a Drawlist to a more or less perfect order
+   * to reduce drawcall overhead... This function also uses
+   * the Layersystem to keep specific stuff in the correct order
+   */
+  void Optimize();
 
   Command::Ref PreGenerateCmd();
   void AddCommand(Command::Ref v);
   void Clear();
+  void Layer(int l) { this->pLayer = l; }
+  int Layer() { return this->pLayer; }
 
   void SetFont(Font::Ref font) { pCurrentFont = font; }
   void SetFontScale(float scale) { pFontScale = scale; }
@@ -196,7 +204,7 @@ class PD_LITHIUM_API DrawList {
   /** Data Section */
 
   std::stack<fvec4> pClipRects;
-  int Layer;
+  int pLayer;
   float pFontScale = 0.7f;
   Font::Ref pCurrentFont;
   Texture::Ref CurrentTex;

pd/core/source/color.cpp

@@ -32,7 +32,7 @@ PD_CORE_API std::string Color::Hex(bool rgba) const {
   s << std::hex << std::setw(2) << std::setfill('0') << (int)r;
   s << std::hex << std::setw(2) << std::setfill('0') << (int)g;
   s << std::hex << std::setw(2) << std::setfill('0') << (int)b;
-  if (rgba) {
+  if (rgba || a != 255) {  // QoL change btw
     s << std::hex << std::setw(2) << std::setfill('0') << (int)a;
   }
   return s.str();

pd/lithium/source/drawlist.cpp

@@ -59,9 +59,25 @@ PD_LITHIUM_API void DrawList::Merge(DrawList::Ref list) {
   list->Clear();
 }
 
+PD_LITHIUM_API void DrawList::Optimize() {
+#ifndef NDEBUG
+  PD::TT::Scope s("Optimize");
+#endif
+  std::sort(pDrawList.begin(), pDrawList.end(),
+            [](const PD::Li::Command::Ref &a, const PD::Li::Command::Ref &b) {
+              if (a->Layer == b->Layer) {  // Same layer
+                if (a->Tex == b->Tex) {    // same tex
+                  return a->Index < b->Index;
+                }
+                return a->Tex < b->Tex;  // order by address
+              }
+              return a->Layer < b->Layer;  // Order by layer
+            });
+}
+
 PD_LITHIUM_API Command::Ref DrawList::PreGenerateCmd() {
   Command::Ref cmd = Command::New();
-  cmd->Layer = Layer;
+  cmd->Layer = pLayer;
   cmd->Index = pDrawList.size();
   cmd->Tex = CurrentTex;
   pClipCmd(cmd.get());
@@ -275,8 +291,8 @@ PD_LITHIUM_API void DrawList::DrawText(const fvec2 &pos,
   std::vector<Command::Ref> cmds;
   pCurrentFont->CmdTextEx(cmds, pos, color, pFontScale, text);
   for (size_t i = 0; i < cmds.size(); i++) {
-    cmds[i]->Index = pDrawList.size();
+    cmds[i]->Index = pDrawList.size() + i;
-    cmds[i]->Layer = Layer;
+    cmds[i]->Layer = pLayer;
     AddCommand(std::move(cmds[i]));
   }
 }
@@ -290,8 +306,8 @@ PD_LITHIUM_API void DrawList::DrawTextEx(const fvec2 &p,
   std::vector<Command::Ref> cmds;
   pCurrentFont->CmdTextEx(cmds, p, color, pFontScale, text, flags, box);
   for (size_t i = 0; i < cmds.size(); i++) {
-    cmds[i]->Index = pDrawList.size();
+    cmds[i]->Index = pDrawList.size() + i;
-    cmds[i]->Layer = Layer;
+    cmds[i]->Layer = pLayer;
     AddCommand(std::move(cmds[i]));
   }
 }

pd/ui7/source/container/button.cpp

@@ -50,10 +50,10 @@ PD_UI7_API void Button::Draw() {
   // Assert(io.get() && list.get(), "Did you run Container::Init correctly?");
   // io->Ren->OnScreen(screen);
   list->DrawRectFilled(FinalPos(), size, io->Theme->Get(color));
-  list->Layer++;
+  list->pLayer++;
   list->DrawText(FinalPos() + size * 0.5 - tdim * 0.5, label,
                  io->Theme->Get(UI7Color_Text));
-  list->Layer--;
+  list->pLayer--;
 }
 
 PD_UI7_API void Button::Update() {

pd/ui7/source/container/dragdata.cpp

@@ -83,11 +83,11 @@ PD_UI7_API void DragData<T>::Draw() {
     vec2 td = io->Font->GetTextBounds(p, io->FontScale);
     list->DrawRectFilled(FinalPos() + fvec2(off_x, 0), td + io->FramePadding,
                          io->Theme->Get(UI7Color_Button));
-    list->Layer++;
+    list->pLayer++;
     list->DrawTextEx(FinalPos() + fvec2(off_x, 0), p,
                      io->Theme->Get(UI7Color_Text), LiTextFlags_AlignMid,
                      td + io->FramePadding);
-    list->Layer--;
+    list->pLayer--;
     off_x += td.x + io->ItemSpace.x + io->FramePadding.x;
   }
   list->DrawText(FinalPos() + fvec2(off_x, io->FramePadding.y * 0.5), label,

pd/ui7/source/container/image.cpp

@@ -29,11 +29,11 @@ PD_UI7_API void Image::Draw() {
   // Assert(io.get() && list.get(), "Did you run Container::Init correctly?");
   // Assert(img.get(), "Image is nullptr!");
   // io->Ren->OnScreen(screen);
-  list->Layer++;
+  list->pLayer++;
   list->DrawTexture(img);
   list->DrawRectFilled(FinalPos(), newsize, 0xffffffff);
   list->DrawSolid();
-  list->Layer--;
+  list->pLayer--;
 }
 }  // namespace UI7
 }  // namespace PD

pd/ui7/source/menu.cpp

@@ -239,7 +239,7 @@ PD_UI7_API void Menu::DrawBaseLayout() {
     if (!(Flags & UI7MenuFlags_NoResize)) {
       Container::Ref r = DynObj::New(
           [](IO::Ref io, Li::DrawList::Ref l, UI7::Container* self) {
-            l->Layer = 1;
+            l->pLayer = 1;
             l->PathAdd(self->FinalPos() + self->GetSize() - fvec2(0, 20));
             l->PathAdd(self->FinalPos() + self->GetSize());
             l->PathAdd(self->FinalPos() + self->GetSize() - fvec2(20, 0));
@@ -255,7 +255,7 @@ PD_UI7_API void Menu::DrawBaseLayout() {
     /** Background */
     Container::Ref r = DynObj::New([](IO::Ref io, Li::DrawList::Ref l,
                                       UI7::Container* self) {
-      l->Layer = 0;
+      l->pLayer = 0;
       l->PathRectEx(self->FinalPos(), self->FinalPos() + self->GetSize(), 10.f,
                     LiPathRectFlags_KeepTop | LiPathRectFlags_KeepBot);
       l->PathFill(io->Theme->Get(UI7Color_Background));
@@ -272,11 +272,11 @@ PD_UI7_API void Menu::DrawBaseLayout() {
   if (!(Flags & UI7MenuFlags_NoTitlebar)) {
     Container::Ref r = DynObj::New(
         [=, this](UI7::IO::Ref io, Li::DrawList::Ref l, UI7::Container* self) {
-          l->Layer = 20;
+          l->pLayer = 20;
           /** Header Bar */
           l->DrawRectFilled(self->FinalPos(), self->GetSize(),
                             io->Theme->Get(UI7Color_Header));
-          l->Layer = 21;
+          l->pLayer = 21;
           /** Inline if statement to shift the Text if collapse sym is shown */
           /** What the hell is this code btw (didn't found a better way) */
           l->DrawText(self->FinalPos() + fvec2(Flags & UI7MenuFlags_NoClose
@@ -297,7 +297,7 @@ PD_UI7_API void Menu::DrawBaseLayout() {
       r = DynObj::New([=, this](UI7::IO::Ref io, Li::DrawList::Ref l,
                                 UI7::Container* self) {
         /** This sym actually requires layer 21 (i dont know why) */
-        l->Layer = 21;
+        l->pLayer = 21;
         /**
          * Symbol (Position Swapping set by pIsOpen ? openpos : closepos;)
          */