Optimize PSP slightly

cmake/targets/psp.cmake

@@ -1,3 +1,7 @@
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
+endif()
+
 set(CMAKE_AR "$ENV{PSPDEV}/bin/psp-ar" CACHE FILEPATH "" FORCE)
 set(CMAKE_RANLIB "$ENV{PSPDEV}/bin/psp-ranlib" CACHE FILEPATH "" FORCE)
 set(CMAKE_C_COMPILER_AR "$ENV{PSPDEV}/bin/psp-ar" CACHE FILEPATH "" FORCE)
@@ -58,12 +62,6 @@ target_compile_definitions(${DUSK_BINARY_TARGET_NAME} PUBLIC
   DUSK_DISPLAY_OVERSCAN=6
 )
 
-if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
-  target_compile_definitions(${DUSK_BINARY_TARGET_NAME} PUBLIC
-    DUSK_ASSERTIONS_FAKED
-  )
-endif()
-
 # Postbuild, create .pbp file for PSP.
 create_pbp_file(
   TARGET "${DUSK_BINARY_TARGET_NAME}"

src/dusk/assert/assert.h

@@ -8,6 +8,13 @@
 #pragma once
 #include "dusk.h"
 
+// Release-style CMake configs (Release, RelWithDebInfo, MinSizeRel) define
+// NDEBUG automatically; fake assertions there rather than requiring every
+// platform's CMakeLists to set DUSK_ASSERTIONS_FAKED itself.
+#if defined(NDEBUG) && !defined(DUSK_ASSERTIONS_FAKED)
+  #define DUSK_ASSERTIONS_FAKED
+#endif
+
 #ifdef DUSK_TEST_ASSERT
   #include <cmocka.h>
   

src/dusk/util/memory.c

@@ -7,7 +7,6 @@
 
 #include "memory.h"
 #include "assert/assert.h"
-#include "util/math.h"
 
 size_t memoryGetAllocatedCount(void) {
   return MEMORY_POINTERS_IN_USE;
@@ -106,9 +105,8 @@ int_t memoryCompare(
 void memoryReallocate(void **ptr, const size_t size) {
   assertNotNull(ptr, "Cannot reallocate NULL pointer.");
   assertTrue(size > 0, "Cannot reallocate to 0 bytes of memory.");
-  void *newPointer = memoryAllocate(size);
+  void *newPointer = realloc(*ptr, size);
   assertNotNull(newPointer, "Memory reallocation failed.");
-  memoryFree(*ptr);
   *ptr = newPointer;
 }
 
@@ -141,9 +139,7 @@ void memoryResize(void **ptr, const size_t oldSize, const size_t newSize) {
   assertTrue(oldSize > 0, "Old size cannot be 0 bytes.");
   if(newSize == oldSize) return;
 
-  void *newPointer = memoryAllocate(newSize);
+  void *newPointer = realloc(*ptr, newSize);
   assertNotNull(newPointer, "Memory resizing failed.");
-  memoryCopy(newPointer, *ptr, mathMin(oldSize, newSize));
-  memoryFree(*ptr);
   *ptr = newPointer;
 }

src/dusksdl2/display/displaysdl2.c

@@ -10,7 +10,12 @@
 #include "display/displaygl.h"
 #include "error/errorgl.h"
 
+static bool_t DISPLAY_SDL2_STATE_VALID = false;
+static uint8_t DISPLAY_SDL2_STATE_FLAGS = 0;
+
 errorret_t displaySDL2Init(void) {
+  DISPLAY_SDL2_STATE_VALID = false;
+
   uint32_t flags = SDL_INIT_VIDEO;
   #ifdef DUSK_INPUT_GAMEPAD
     flags |= SDL_INIT_GAMECONTROLLER | SDL_INIT_JOYSTICK;
@@ -103,38 +108,53 @@ errorret_t displaySDL2Swap(void) {
 }
 
 errorret_t displaySDL2SetState(displaystate_t state) {
-  if(state.flags & DISPLAY_STATE_FLAG_CULL) {
-    glEnable(GL_CULL_FACE);
-    errorChain(errorGLCheck());
-    glCullFace(GL_BACK);
-    errorChain(errorGLCheck());
-  } else {
-    glDisable(GL_CULL_FACE);
-    errorChain(errorGLCheck());
+  // Only touch GL state that actually differs from what's already bound --
+  // avoids a redundant glEnable/glDisable/glBlendFunc/glDepthFunc round
+  // trip per draw when consecutive entities share the same display state.
+  const uint8_t changed = DISPLAY_SDL2_STATE_VALID ?
+    (state.flags ^ DISPLAY_SDL2_STATE_FLAGS) : 0xFF;
+
+  if(changed & DISPLAY_STATE_FLAG_CULL) {
+    if(state.flags & DISPLAY_STATE_FLAG_CULL) {
+      glEnable(GL_CULL_FACE);
+      errorChain(errorGLCheck());
+      glCullFace(GL_BACK);
+      errorChain(errorGLCheck());
+    } else {
+      glDisable(GL_CULL_FACE);
+      errorChain(errorGLCheck());
+    }
   }
 
-  if(state.flags & DISPLAY_STATE_FLAG_DEPTH_TEST) {
-    glEnable(GL_DEPTH_TEST);
-    errorChain(errorGLCheck());
-    glDepthFunc(GL_LEQUAL);
-    errorChain(errorGLCheck());
-    glClearDepth(1.0f);
-    errorChain(errorGLCheck());
-  } else {
-    glDisable(GL_DEPTH_TEST);
-    errorChain(errorGLCheck());
+  if(changed & DISPLAY_STATE_FLAG_DEPTH_TEST) {
+    if(state.flags & DISPLAY_STATE_FLAG_DEPTH_TEST) {
+      glEnable(GL_DEPTH_TEST);
+      errorChain(errorGLCheck());
+      glDepthFunc(GL_LEQUAL);
+      errorChain(errorGLCheck());
+      glClearDepth(1.0f);
+      errorChain(errorGLCheck());
+    } else {
+      glDisable(GL_DEPTH_TEST);
+      errorChain(errorGLCheck());
+    }
   }
 
-  if(state.flags & DISPLAY_STATE_FLAG_BLEND) {
-    glEnable(GL_BLEND);
-    errorChain(errorGLCheck());
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-    errorChain(errorGLCheck());
-  } else {
-    glDisable(GL_BLEND);
-    errorChain(errorGLCheck());
+  if(changed & DISPLAY_STATE_FLAG_BLEND) {
+    if(state.flags & DISPLAY_STATE_FLAG_BLEND) {
+      glEnable(GL_BLEND);
+      errorChain(errorGLCheck());
+      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+      errorChain(errorGLCheck());
+    } else {
+      glDisable(GL_BLEND);
+      errorChain(errorGLCheck());
+    }
   }
 
+  DISPLAY_SDL2_STATE_FLAGS = state.flags;
+  DISPLAY_SDL2_STATE_VALID = true;
+
   errorOk();
 }