Sprites missing in Windows after C++ -> C refactor

[danibiker]

Since the porting to .c of the previous .cpp files, the rendering is broken. Watch wario land 4 losing a bunch of important sprites. The character and the car is gone from the title intro

[danibiker]

CPULoadRom is also broken. The variable "whereToLoad" should be assigned with the pointer to "rom" after the call to CPUSetupBuffers

[danibiker]

Found the problem in gba.c

/* IMPORTANT: each macro yields 0 or 1, NOT the raw bit value.
* In C mode under MSVC < 1800 (e.g. VS2010), libretro-common's boolean.h
* defines `bool` as `unsigned char`, so a high bit such as 0x1000 (OBJ) or
* 0x8000 (OBJ-WIN) is truncated to 0 when assigned to `bool`. That silently
* disables the OBJ layer (and was the root cause of the missing sprites in
* the C port; the C++ build was unaffected because C++'s native `bool`
* converts any non-zero integer to true without truncation).
* Guard against this with `!= 0` so the macros are bool-assignment-safe at
* every call site, regardless of how the consumer uses the result. */

#define RENDERER_R_DISPCNT_Screen_Display_BG0 ((RENDERER_GRAPHICS_LAYERS & (1 << 8)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_BG1 ((RENDERER_GRAPHICS_LAYERS & (1 << 9)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_BG2 ((RENDERER_GRAPHICS_LAYERS & (1 << 10)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_BG3 ((RENDERER_GRAPHICS_LAYERS & (1 << 11)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_OBJ ((RENDERER_GRAPHICS_LAYERS & (1 << 12)) != 0)
#define RENDERER_R_DISPCNT_Window_0_Display ((RENDERER_GRAPHICS_LAYERS & (1 << 13)) != 0)
#define RENDERER_R_DISPCNT_Window_1_Display ((RENDERER_GRAPHICS_LAYERS & (1 << 14)) != 0)
#define RENDERER_R_DISPCNT_OBJ_Window_Display ((RENDERER_GRAPHICS_LAYERS & (1 << 15)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_BG0 ((RENDERER_GRAPHICS_LAYERS & (1 << 8)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_BG1 ((RENDERER_GRAPHICS_LAYERS & (1 << 9)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_BG2 ((RENDERER_GRAPHICS_LAYERS & (1 << 10)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_BG3 ((RENDERER_GRAPHICS_LAYERS & (1 << 11)) != 0)
#define RENDERER_R_DISPCNT_Screen_Display_OBJ ((RENDERER_GRAPHICS_LAYERS & (1 << 12)) != 0)
#define RENDERER_R_DISPCNT_Window_0_Display ((RENDERER_GRAPHICS_LAYERS & (1 << 13)) != 0)
#define RENDERER_R_DISPCNT_Window_1_Display ((RENDERER_GRAPHICS_LAYERS & (1 << 14)) != 0)
#define RENDERER_R_DISPCNT_OBJ_Window_Display ((RENDERER_GRAPHICS_LAYERS & (1 << 15)) != 0)
#define R_DISPCNT_Screen_Display_BG0 ((graphics.layerEnable & (1 << 8)) != 0)
#define R_DISPCNT_Screen_Display_BG1 ((graphics.layerEnable & (1 << 9)) != 0)
#define R_DISPCNT_Screen_Display_BG2 ((graphics.layerEnable & (1 << 10)) != 0)
#define R_DISPCNT_Screen_Display_BG3 ((graphics.layerEnable & (1 << 11)) != 0)
#define R_DISPCNT_Screen_Display_OBJ ((graphics.layerEnable & (1 << 12)) != 0)
#define R_DISPCNT_Window_0_Display ((graphics.layerEnable & (1 << 13)) != 0)
#define R_DISPCNT_Window_1_Display ((graphics.layerEnable & (1 << 14)) != 0)
#define R_DISPCNT_OBJ_Window_Display ((graphics.layerEnable & (1 << 15)) != 0)