2D-Renderer: Fix 2D-render coordinate mapping.

kimkulling · Sep 20, 2024 · 4f0a6ec · 4f0a6ec
1 parent d492d8e
commit 4f0a6ec
Show file tree

Hide file tree

Showing 2 changed files with 8 additions and 6 deletions.
diff --git a/src/Engine/RenderBackend/2D/CanvasRenderer.cpp b/src/Engine/RenderBackend/2D/CanvasRenderer.cpp
@@ -58,7 +58,7 @@ struct DrawCmd {
 inline void mapCoordinates(const Rect2i &resolution, i32 x, i32 y, f32 &xOut, f32 &yOut) {
     xOut = (2.0f * static_cast<f32>(x)  / static_cast<f32>(resolution.width)) - 1.0f;
     yOut = (2.0f * static_cast<f32>(y) / static_cast<f32>(resolution.height)) - 1.0f;
-    //yOut = -1.0f * yOut;
+    yOut = -1.0f * yOut;
 }
 
 inline void clip(const Rect2i &resolution, i32 x, i32 y, i32 &x_out, i32 &y_out) {
@@ -350,12 +350,12 @@ static void createRectVertices(DrawCmd *drawCmd, const Color4 &penColor, const R
     drawCmd->NumIndices = 6;
     drawCmd->Indices = new ui16[drawCmd->NumIndices];
     drawCmd->Indices[0] = 0;
-    drawCmd->Indices[1] = 1;
-    drawCmd->Indices[2] = 2;
+    drawCmd->Indices[1] = 2;
+    drawCmd->Indices[2] = 1;
 
     drawCmd->Indices[3] = 3;
-    drawCmd->Indices[4] = 4;
-    drawCmd->Indices[5] = 5;
+    drawCmd->Indices[4] = 5;
+    drawCmd->Indices[5] = 4;
 }
 
 void CanvasRenderer::drawRect(i32 x, i32 y, i32 w, i32 h, bool filled) {

diff --git a/src/Engine/RenderBackend/RenderCommon.h b/src/Engine/RenderBackend/RenderCommon.h
@@ -948,7 +948,9 @@ struct OSRE_EXPORT IRenderPath {
     Shader *mShader;
 };
 
-inline IRenderPath::IRenderPath() : mShader(nullptr) {}
+inline IRenderPath::IRenderPath() : mShader(nullptr) {
+    // empty
+}
 
 enum class GLSLVersion {
     Invalid = -1,