A lot of PSP optimizations

src/duskdolphin/display/displaydolphin.c

@@ -81,14 +81,8 @@ errorret_t displayInitDolphin(void) {
   // Describe mesh vertex format.
   GX_ClearVtxDesc();
   GX_SetVtxDesc(GX_VA_POS,  GX_INDEX16);
-  #if MESH_ENABLE_COLOR
-    GX_SetVtxDesc(GX_VA_CLR0, GX_INDEX16);
-  #endif
   GX_SetVtxDesc(GX_VA_TEX0, GX_INDEX16);
   GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
-  #if MESH_ENABLE_COLOR
-    GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
-  #endif
   GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
 
   errorOk();

src/duskdolphin/display/mesh/meshdolphin.c

@@ -42,15 +42,8 @@ errorret_t meshDrawDolphin(
   assertTrue(vertexCount <= UINT16_MAX, "Vertex count exceeds GX limit");
 
   // Matches vertex format described in displaydolphin.c
-  assertTrue(sizeof(color_t) == 4, "color_t must be exactly 4 bytes");
-  #if MESH_ENABLE_COLOR
-    assertTrue(offsetof(meshvertex_t, color) == 0, "color offset wrong");
-    assertTrue(offsetof(meshvertex_t, uv) == 4, "uv offset wrong");
-    assertTrue(offsetof(meshvertex_t, pos) == 12, "pos offset wrong");
-  #else
-    assertTrue(offsetof(meshvertex_t, uv) == 0, "uv offset wrong");
-    assertTrue(offsetof(meshvertex_t, pos) == 8, "pos offset wrong");
-  #endif
+  assertTrue(offsetof(meshvertex_t, uv) == 0, "uv offset wrong");
+  assertTrue(offsetof(meshvertex_t, pos) == 8, "pos offset wrong");
 
   // Flush vertex data to GPU. This is required before drawing with GX.
   DCFlushRange(
@@ -63,22 +56,13 @@ errorret_t meshDrawDolphin(
 
   const uint8_t stride = (uint8_t)sizeof(meshvertex_t);
   GX_SetArray(GX_VA_POS, (void*)&mesh->vertices[vertexOffset].pos[0], stride);
-  #if MESH_ENABLE_COLOR
-    GX_SetArray(
-      GX_VA_CLR0,
-      (void*)&mesh->vertices[vertexOffset].color.r, stride
-    );
-  #endif
   GX_SetArray(GX_VA_TEX0, (void*)&mesh->vertices[vertexOffset].uv[0], stride);
-  
+
   GX_InvVtxCache();
-  
+
   GX_Begin(mesh->primitiveType, GX_VTXFMT0, (uint16_t)vertexCount);
   for(uint16_t i = 0; i < (uint16_t)vertexCount; ++i) {
     GX_Position1x16(i);
-    #if MESH_ENABLE_COLOR
-      GX_Color1x16(i);
-    #endif
     GX_TexCoord1x16(i);
   }
   GX_End();