N64: Add support for non power of two textures for UI texures to squeeze a bit more into the 4 kb TMEM

src/Drawer2D.c

@@ -152,9 +152,11 @@ void Context2D_Alloc(struct Context2D* ctx, int width, int height) {
 	ctx->height = height;
 	ctx->meta   = NULL;
 
-	/* Allocates a power-of-2 sized bitmap equal to or greater than the given size, and clears it to 0 */
+	if (!Gfx.SupportsNonPowTwoTextures) {
-	width  = Math_NextPowOf2(width);
+		/* Allocate power-of-2 sized bitmap equal to or greater than the given size */
-	height = Math_NextPowOf2(height);
+		width  = Math_NextPowOf2(width);
+		height = Math_NextPowOf2(height);
+	}
 
 	ctx->bmp.width  = width; 
 	ctx->bmp.height = height;
@@ -299,7 +301,7 @@ void Drawer2D_MakeTextTexture(struct Texture* tex, struct DrawTextArgs* args) {
 }
 
 void Context2D_MakeTexture(struct Texture* tex, struct Context2D* ctx) {
-	Gfx_RecreateTexture(&tex->ID, &ctx->bmp, 0, false);
+	Gfx_RecreateTexture(&tex->ID, &ctx->bmp, TEXTURE_FLAG_NONPOW2, false);
 	tex->Width  = ctx->width;
 	tex->Height = ctx->height;
 

src/Entity.c

@@ -332,7 +332,7 @@ static cc_result ApplySkin(struct Entity* e, struct Bitmap* bmp, struct Stream*
 		if (e->Model->flags & MODEL_FLAG_CLEAR_HAT) 
 			Entity_ClearHat(bmp, e->SkinType);
 
-		Gfx_RecreateTexture(&e->TextureId, bmp, TEXTURE_FLAG_MANAGED, false);
+		e->TextureId = Gfx_CreateTexture(bmp, TEXTURE_FLAG_MANAGED, false);
 		Entity_SetSkinAll(e, false);
 	}
 	return 0;

src/Graphics.h

@@ -40,9 +40,12 @@ void Gfx_Create(void);
 void Gfx_Free(void);
 
 CC_VAR extern struct _GfxData {
-	/* Maximum dimensions textures can be created up to. (usually 1024 to 16384) */
+	/* Maximum dimensions in pixels that a texture can be created up to */
+	/* NOTE: usually 1024 to 16384 */
 	int MaxTexWidth, MaxTexHeight;
-	float _unused;
+	/* Maximum total size in pixels a texture can consist of */
+	/* NOTE: Not all graphics backends specify a value for this */
+	int MaxTexSize;
 	/* Whether context graphics has been lost (all creation/render calls fail) */
 	cc_bool LostContext;
 	/* Whether some textures are created with mipmaps */
@@ -53,9 +56,8 @@ CC_VAR extern struct _GfxData {
 	/* Whether graphics context has been created */
 	cc_bool Created;
 	struct Matrix View, Projection;
-	/* Maximum size in pixels a texture can consist of */
+	/* Whether the graphics backend supports non power of two textures */
-	/* NOTE: Not all graphics backends specify a value for this */
+	cc_bool SupportsNonPowTwoTextures;
-	int MaxTexSize;
 } Gfx;
 
 extern GfxResourceID Gfx_defaultIb;
@@ -69,6 +71,8 @@ extern const cc_string Gfx_LowPerfMessage;
 #define TEXTURE_FLAG_MANAGED 0x01
 /* Texture should allow updating via Gfx_UpdateTexture */
 #define TEXTURE_FLAG_DYNAMIC 0x02
+/* Texture is deliberately (and not accidentally) being created with non power of two dimensions */
+#define TEXTURE_FLAG_NONPOW2 0x04
 
 #define LOWPERF_EXIT_MESSAGE "&eExited reduced performance mode"
 
@@ -77,7 +81,7 @@ void* Gfx_RecreateAndLockVb(GfxResourceID* vb, VertexFormat fmt, int count);
 
 cc_bool Gfx_CheckTextureSize(int width, int height);
 /* Creates a new texture. (and also generates mipmaps if mipmaps) */
-/* Supported flags: TEXTURE_FLAG_MANAGED, TEXTURE_FLAG_DYNAMIC */
+/*   See TEXTURE_FLAG values for supported flags */
 /* NOTE: Only set mipmaps to true if Gfx_Mipmaps is also true, because whether textures
 use mipmapping may be either a per-texture or global state depending on the backend */
 CC_API GfxResourceID Gfx_CreateTexture(struct Bitmap* bmp, cc_uint8 flags, cc_bool mipmaps);

src/Graphics_N64.c

@@ -33,6 +33,7 @@ void Gfx_Create(void) {
 	Gfx.MaxTexSize   = 1024; // TMEM only has 4 KB in it
 	Gfx.Created      = true;
 
+	Gfx.SupportsNonPowTwoTextures = true;
 	Gfx_RestoreState();
 	GL_UpdateVsync();
 }
@@ -137,9 +138,10 @@ static GfxResourceID Gfx_AllocTexture(struct Bitmap* bmp, cc_uint8 flags, cc_boo
 				 bmp->width * 4);
 	}
 	
-	rdpq_texparms_t params = (rdpq_texparms_t){
+	rdpq_texparms_t params =
-        .s.repeats = REPEAT_INFINITE,
+	{
-        .t.repeats = REPEAT_INFINITE,
+        .s.repeats = (flags & TEXTURE_FLAG_NONPOW2) ? 1 : REPEAT_INFINITE,
+        .t.repeats = (flags & TEXTURE_FLAG_NONPOW2) ? 1 : REPEAT_INFINITE,
     };
 
 	// rdpq_tex_upload(TILE0, &tex->surface, &params);

src/Window_N64.c

@@ -36,6 +36,8 @@ void Window_Init(void) {
 	WindowInfo.Exists  = true;
 
 	Input.Sources = INPUT_SOURCE_GAMEPAD;
+	DisplayInfo.ContentOffsetX = 10;
+	DisplayInfo.ContentOffsetY = 10;
     joypad_init();
 }
 

src/_GraphicsBase.h

@@ -362,9 +362,13 @@ cc_bool Gfx_CheckTextureSize(int width, int height) {
 static GfxResourceID Gfx_AllocTexture(struct Bitmap* bmp, cc_uint8 flags, cc_bool mipmaps);
 
 GfxResourceID Gfx_CreateTexture(struct Bitmap* bmp, cc_uint8 flags, cc_bool mipmaps) {
-	if (!Math_IsPowOf2(bmp->width) || !Math_IsPowOf2(bmp->height)) {
+	if (Gfx.SupportsNonPowTwoTextures && (flags & TEXTURE_FLAG_NONPOW2)) {
+		/* Texture is being deliberately created and can be successfully created */
+		/* with non power of two dimensions. Typically used for UI textures */
+	} else if (!Math_IsPowOf2(bmp->width) || !Math_IsPowOf2(bmp->height)) {
 		Logger_Abort("Textures must have power of two dimensions");
 	}
+
 	if (Gfx.LostContext) return 0;
 	if (!Gfx_CheckTextureSize(bmp->width, bmp->height)) return 0;