added code to LCD modules keep track of framebuffer location in FCRAM or VRAM

1 files changed, 63 insertions, 14 deletions

diff --git a/src/core/hw/lcd.h b/src/core/hw/lcd.h
index b047e7ce..2dd3b4ad 100644
--- a/src/core/hw/lcd.h
+++ b/src/core/hw/lcd.h
@@ -8,6 +8,19 @@
 
 namespace LCD {
 
+struct Registers {
+    u32 framebuffer_top_left_1;
+    u32 framebuffer_top_left_2;
+    u32 framebuffer_top_right_1;
+    u32 framebuffer_top_right_2;
+    u32 framebuffer_sub_left_1;
+    u32 framebuffer_sub_left_2;
+    u32 framebuffer_sub_right_1;
+    u32 framebuffer_sub_right_2;
+};
+
+extern Registers g_regs;
+
 enum {
     TOP_ASPECT_X        = 0x5,
     TOP_ASPECT_Y        = 0x3,
@@ -17,24 +30,60 @@ enum {
     BOTTOM_WIDTH        = 320,
 
     // Physical addresses in FCRAM used by ARM9 applications - these are correct for real hardware 
-    FRAMEBUFFER_SEL     = 0x20184E59,
-    TOP_LEFT_FRAME1     = 0x20184E60,
-    TOP_LEFT_FRAME2     = 0x201CB370,
-    TOP_RIGHT_FRAME1    = 0x20282160,
-    TOP_RIGHT_FRAME2    = 0x202C8670,
-    SUB_FRAME1          = 0x202118E0,
-    SUB_FRAME2          = 0x20249CF0,
+    PADDR_FRAMEBUFFER_SEL       = 0x20184E59,
+    PADDR_TOP_LEFT_FRAME1       = 0x20184E60,
+    PADDR_TOP_LEFT_FRAME2       = 0x201CB370,
+    PADDR_TOP_RIGHT_FRAME1      = 0x20282160,
+    PADDR_TOP_RIGHT_FRAME2      = 0x202C8670,
+    PADDR_SUB_FRAME1            = 0x202118E0,
+    PADDR_SUB_FRAME2            = 0x20249CF0,
 
     // Physical addresses in VRAM - I'm not sure how these are actually allocated (so not real)
-    VRAM_FRAMEBUFFER_SEL    = 0x18184E59,
-    VRAM_TOP_LEFT_FRAME1    = 0x18184E60,
-    VRAM_TOP_LEFT_FRAME2    = 0x181CB370,
-    VRAM_TOP_RIGHT_FRAME1   = 0x18282160,
-    VRAM_TOP_RIGHT_FRAME2   = 0x182C8670,
-    VRAM_SUB_FRAME1         = 0x182118E0,
-    VRAM_SUB_FRAME2         = 0x18249CF0,
+    PADDR_VRAM_FRAMEBUFFER_SEL  = 0x18184E59,
+    PADDR_VRAM_TOP_LEFT_FRAME1  = 0x18184E60,
+    PADDR_VRAM_TOP_LEFT_FRAME2  = 0x181CB370,
+    PADDR_VRAM_TOP_RIGHT_FRAME1 = 0x18282160,
+    PADDR_VRAM_TOP_RIGHT_FRAME2 = 0x182C8670,
+    PADDR_VRAM_SUB_FRAME1       = 0x182118E0,
+    PADDR_VRAM_SUB_FRAME2       = 0x18249CF0,
+};
+
+enum {
+    REG_FRAMEBUFFER_TOP_LEFT_1  = 0x1EF00468,   // Main LCD, first framebuffer for 3D left
+    REG_FRAMEBUFFER_TOP_LEFT_2  = 0x1EF0046C,   // Main LCD, second framebuffer for 3D left
+    REG_FRAMEBUFFER_TOP_RIGHT_1 = 0x1EF00494,   // Main LCD, first framebuffer for 3D right
+    REG_FRAMEBUFFER_TOP_RIGHT_2 = 0x1EF00498,   // Main LCD, second framebuffer for 3D right
+    REG_FRAMEBUFFER_SUB_LEFT_1  = 0x1EF00568,   // Sub LCD, first framebuffer
+    REG_FRAMEBUFFER_SUB_LEFT_2  = 0x1EF0056C,   // Sub LCD, second framebuffer
+    REG_FRAMEBUFFER_SUB_RIGHT_1 = 0x1EF00594,   // Sub LCD, unused first framebuffer
+    REG_FRAMEBUFFER_SUB_RIGHT_2 = 0x1EF00598,   // Sub LCD, unused second framebuffer
 };
 
+/// Framebuffer location
+enum FramebufferLocation {
+    FRAMEBUFFER_LOCATION_UNKNOWN,   ///< Framebuffer location is unknown
+    FRAMEBUFFER_LOCATION_FCRAM,  ///< Framebuffer is in the GSP heap
+    FRAMEBUFFER_LOCATION_VRAM,      ///< Framebuffer is in VRAM
+};
+
+/**
+ * Sets whether the framebuffers are in the GSP heap (FCRAM) or VRAM
+ * @param 
+ */
+void SetFramebufferLocation(const FramebufferLocation mode);
+
+/**
+ * Gets a read-only pointer to a framebuffer in memory
+ * @param address Physical address of framebuffer
+ * @return Returns const pointer to raw framebuffer
+ */
+const u8* GetFramebufferPointer(const u32 address);
+
+/**
+ * Gets the location of the framebuffers
+ */
+const FramebufferLocation GetFramebufferLocation();
+
 template <typename T>
 inline void Read(T &var, const u32 addr);