trig tables shiftable (#596)

Makefile

@@ -212,7 +212,7 @@ DATA_DIR       := data
 INCLUDE_DIRS   := include
 
 # Directories containing source files
-SRC_DIRS       := src src/data src/racing src/ending src/audio src/debug src/os src/os/math courses
+SRC_DIRS       := src src/data src/buffers src/racing src/ending src/audio src/debug src/os src/os/math courses
 ASM_DIRS       := asm asm/os asm/unused $(DATA_DIR) $(DATA_DIR)/sound_data $(DATA_DIR)/karts
 
 

ctx_includes.c

@@ -80,7 +80,7 @@
 #include "src/data/data_800E8700.h"
 #include "src/data/some_data.h"
 #include "src/data/path_spawn_data.h"
-#include "src/data/trig_tables.h"
+#include "src/buffers/trig_tables.h"
 #include "src/data_segment2.h"
 #include "src/effects.h"
 #include "src/ending/ceremony_and_credits.h"

mk64.ld

@@ -3,7 +3,14 @@
 
 OUTPUT_ARCH (mips)
 
-#include "include/linker_segments.h"
+#define LINKER_MAIN        0x80000400
+
+#define LINKER_ENDING      0x80280000
+
+#define LINKER_RACING      0x8028DF00
+
+// End of Jumper pak memory
+#define RDRAM_END         0x807FFFFF
 
 #define BEGIN_SEG(name, addr) \
     _##name##SegmentStart = ADDR(.name); \
@@ -81,7 +88,7 @@ SECTIONS
          BUILD_DIR/src/debug/crash_screen_enhancement.o(.text);
          BUILD_DIR/src/debug/debug.o(.text);
          BUILD_DIR/src/os/sprintf.o(.text);
-      BUILD_DIR/src/os/is_debug.o(.text);
+         BUILD_DIR/src/os/is_debug.o(.text);
       #endif
       BUILD_DIR/src/os/osCreateThread.o(.text);
       #ifdef VERSION_EU
@@ -342,13 +349,15 @@ SECTIONS
       BUILD_DIR/src/os/osEepromWrite.o(.bss);
       BUILD_DIR/asm/os/__osException.o(.bss);
       BUILD_DIR/src/os/osLeoDiskInit.o(.bss);
+      . = ALIGN(0x10);
    }
    END_NOLOAD(main)
 
    /* Checks that segments are not overlapping into the memory pool but is not strictly necessary */
    BEGIN_NOLOAD(memoryPool)
    {
-      BUILD_DIR/src/data/memory_pool.o(.bss);
+      BUILD_DIR/src/buffers/memory_pool.o(.bss);
+      . = ALIGN(0x10);
    }
    END_NOLOAD(memoryPool)
 
@@ -387,19 +396,21 @@ SECTIONS
       BUILD_DIR/src/racing/race_logic.o(.bss*);
       BUILD_DIR/src/racing/actors.o(.bss*);
       BUILD_DIR/src/racing/memory.o(.bss*);
+      BUILD_DIR/src/buffers/random.o(.bss*);
       . = ALIGN(0x10);
    }
    END_NOLOAD(racing)
 
    BEGIN_NOLOAD(buffers)
    {
-      BUILD_DIR/src/data/buffers.o(.bss*);
-      BUILD_DIR/src/data/gfx_output_buffer.o(.bss*);
+      BUILD_DIR/src/buffers/trig_tables_bss.o(.bss*);
+      BUILD_DIR/src/buffers/buffers.o(.bss*);
+      BUILD_DIR/src/buffers/gfx_output_buffer.o(.bss*);
       BUILD_DIR/src/audio/synthesis.o(.bss*);
       BUILD_DIR/src/audio/heap.o(.bss*);
-      BUILD_DIR/src/audio/load.o(.bss);
-      BUILD_DIR/src/audio/data.o(.bss);
-      . = ALIGN(0x8);
+      BUILD_DIR/src/audio/load.o(.bss*);
+      BUILD_DIR/src/audio/data.o(.bss*);
+      . = ALIGN(0x10);
    }
    END_NOLOAD(buffers)
 
@@ -476,9 +487,9 @@ SECTIONS
    END_SEG(other_textures)
 
    /* 0x802BA370 724220-729A30 [0x5810] */
-   BEGIN_SEG(trigTables, LINKER_TRIG_TABLES)
+   BEGIN_SEG(trigTables, _buffersSegmentNoloadStart)
    {
-        BUILD_DIR/src/data/trig_tables.o(.data);
+        BUILD_DIR/src/buffers/trig_tables.o(.data);
         . = ALIGN(0x10);
    }
    END_SEG(trigTables)
@@ -645,6 +656,8 @@ SECTIONS
    ASSERT((_mainSegmentNoloadEnd <= _memoryPoolSegmentNoloadStart), "Error: Main segment extended into the memory pool.")
    ASSERT((_memoryPoolSegmentNoloadEnd <= _endingSegmentStart), "Error: Memory pool extended into the ending segment.")
    ASSERT((_endingSegmentNoloadEnd <= _racingSegmentStart), "Error: Ending segment extended into the racing segment")
+   ASSERT((_endingSegmentNoloadEnd <= _racingSegmentStart), "Error: Ending segment extended into the racing segment.")
    ASSERT((_racingSegmentNoloadEnd <= _buffersSegmentNoloadStart), "Error: Racing segment extended into the buffers segment.")
    ASSERT((_buffersSegmentNoloadEnd <= RDRAM_END), "Error: Buffers segment extended past 8MB of memory")
+   ASSERT((_buffersSegmentNoloadEnd <= RDRAM_END), "Error: Buffers segment extended into trig tables segment.")
 }

src/audio/load.c

@@ -9,7 +9,7 @@
 #include "audio/synthesis.h"
 #include "audio/seqplayer.h"
 #include "audio/port_eu.h"
-#include "data/gfx_output_buffer.h"
+#include "buffers/gfx_output_buffer.h"
 
 #define ALIGN16(val) (((val) + 0xF) & ~0xF)
 

src/audio/synthesis.h

@@ -109,10 +109,6 @@ Acmd *final_resample(Acmd *acmd, struct NoteSynthesisState *synthesisState, s32
 Acmd *func_800B86A0(Acmd *cmd, struct NoteSubEu *note, struct NoteSynthesisState *synthesisState, s32 nSamples, u16 inBuf, s32 headsetPanSettings, u32 flags);
 Acmd *note_apply_headset_pan_effects(Acmd *acmd, struct NoteSubEu *noteSubEu, struct NoteSynthesisState *note, s32 bufLen, s32 flags, s32 leftRight);
 
-// These 2 are almost certainly misnamed and misplaced
-extern u64 gGfxSPTaskOutputBuffer[];
-extern u32 gGfxSPTaskOutputBufferSize;
-
 extern struct SynthesisReverb gSynthesisReverbs[4];
 
 /*

src/buffers/buffers.c

@@ -0,0 +1,22 @@
+#include <ultra64.h>
+#include <macros.h>
+#include "config.h"
+#include "buffers.h"
+
+ALIGNED8 union_D_802BFB80 D_802BFB80;
+ALIGNED8 struct_D_802DFB80 D_802DFB80[2][2][8];
+#ifdef AVOID_UB
+ALIGNED8 struct_D_802F1F80 D_802F1F80[2][4][8];
+#else
+ALIGNED8 u16 D_802F1F80[2][4][0x100 * 8];
+#endif
+
+ALIGNED8 u16 gZBuffer[SCREEN_WIDTH * SCREEN_HEIGHT];
+
+#ifdef AVOID_UB
+ALIGNED8 u16 gFramebuffers[3][SCREEN_WIDTH * SCREEN_HEIGHT];
+#else
+u16 gFramebuffer0[SCREEN_WIDTH * SCREEN_HEIGHT];
+u16 gFramebuffer1[SCREEN_WIDTH * SCREEN_HEIGHT];
+u16 gFramebuffer2[SCREEN_WIDTH * SCREEN_HEIGHT];
+#endif

src/buffers/gfx_output_buffer.c

@@ -0,0 +1,7 @@
+#include <ultra64.h>
+#include <macros.h>
+#include "gfx_output_buffer.h"
+
+ALIGNED8 u64 gGfxSPTaskOutputBuffer[GFX_OUTPUT_BUFFER_SIZE];
+
+u32 gGfxSPTaskOutputBufferSize;

src/data/gfx_output_buffer.h → src/buffers/gfx_output_buffer.h

@@ -9,6 +9,5 @@
 
 // 0x3F00
 extern u64 gGfxSPTaskOutputBuffer[GFX_OUTPUT_BUFFER_SIZE];
-extern u32 gGfxSPTaskOutputBufferSize;
 
 #endif // GFX_OUTPUT_BUFFER_H

src/data/memory_pool.c → src/buffers/memory_pool.c

@@ -5,7 +5,7 @@
 #define MEMORY_POOL_SIZE 0xAB630
 
 /**
- * Memory pool setup to prevent other code segments flowing into the memory pool
- * and for easier portability.
+ * Memory pool variable prevents code segments flowing into the memory pool
+ * for easier portability.
 */
 u8 memoryPool[MEMORY_POOL_SIZE];

src/buffers/random.c

@@ -0,0 +1,4 @@
+#include <segments.h>
+
+u16 gRandomSeed16;
+u8 randomSeedPadding[216];

src/buffers/random.h

@@ -0,0 +1,4 @@
+#include <ultra64.h>
+
+extern u16 gRandomSeed16;
+extern u8 randomSeedPadding[];

src/buffers/trig_tables_bss.c

@@ -0,0 +1,13 @@
+#include <ultra64.h>
+#include <macros.h>
+
+/**
+ * Trig tables get loaded into memory at this location.
+ * See trig_tables.c for the real file.
+ */
+
+#ifdef VERSION_EU
+ALIGNED8 u8 trigTablesPadding[0x5750];
+#else
+ALIGNED8 u8 trigTablesPadding[0x5810];
+#endif

src/debug/all_variables.h

@@ -63,7 +63,7 @@
 #include <objects.h>
 #include <segments.h>
 #include <sounds.h>
-#include "data/trig_tables.h"
+#include "buffers/trig_tables.h"
 #include <types.h>
 #include <ultra64.h>
 #include <vehicles.h>

src/main.c

@@ -35,7 +35,7 @@
 #include "staff_ghosts.h"
 #include <debug.h>
 #include "crash_screen.h"
-#include "data/gfx_output_buffer.h"
+#include "buffers/gfx_output_buffer.h"
 
 // Declarations (not in this file)
 void func_80091B78(void);
@@ -53,9 +53,9 @@ struct VblankHandler *gVblankHandler2 = NULL;
 
 struct SPTask *gActiveSPTask = NULL;
 struct SPTask *sCurrentAudioSPTask = NULL;
-struct SPTask* sCurrentDisplaySPTask = NULL;
-struct SPTask* sNextAudioSPTask = NULL;
-struct SPTask* sNextDisplaySPTask = NULL;
+struct SPTask *sCurrentDisplaySPTask = NULL;
+struct SPTask *sNextAudioSPTask = NULL;
+struct SPTask *sNextDisplaySPTask = NULL;
 
 
 struct Controller gControllers[NUM_PLAYERS];
@@ -137,7 +137,7 @@ struct SPTask *gGfxSPTask;
 s32 D_801502A0;
 s32 D_801502A4;
 u16 *gPhysicalFramebuffers[3];
-u32 D_801502B4;
+uintptr_t gPhysicalZBuffer;
 UNUSED u32 D_801502B8;
 UNUSED u32 D_801502BC;
 Mat4 D_801502C0;
@@ -368,7 +368,7 @@ void read_controllers(void) {
 }
 
 void func_80000BEC(void) {
-    D_801502B4 = VIRTUAL_TO_PHYSICAL(&gZBuffer);
+    gPhysicalZBuffer = VIRTUAL_TO_PHYSICAL(&gZBuffer);
 }
 
 void dispatch_audio_sptask(struct SPTask *spTask) {
@@ -538,7 +538,7 @@ void setup_game_memory(void) {
     textureSegStart = (ptrdiff_t) SEG_RACING - commonCourseDataSize;
 #else
     textureSegStart = SEG_RACING - commonCourseDataSize;
-#endif  
+#endif
     osPiStartDma(&gDmaIoMesg, 0, 0, COMMON_TEXTURES_ROM_START, (void *) textureSegStart, commonCourseDataSize, &gDmaMesgQueue);
     osRecvMesg(&gDmaMesgQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
 

src/main.h

@@ -182,7 +182,7 @@ extern struct SPTask *gGfxSPTask;
 extern s32 D_801502A0;
 extern s32 D_801502A4;
 extern u16 *gPhysicalFramebuffers[];
-extern u32 D_801502B4;
+extern uintptr_t gPhysicalZBuffer;
 extern Mat4 D_801502C0;
 
 extern s32 padding[];
@@ -231,9 +231,4 @@ extern f32 gCourseTimer;
 
 // end of definition of main.c variables
 
-extern u64 gGfxSPTaskOutputBuffer[];
-extern u32 gGfxSPTaskOutputBufferSize;
-
-extern u32 *D_801978D0; // Segment? Keeps track of segmented addresses?
-
 #endif

src/racing/math_util.c

@@ -5,7 +5,7 @@
 #include <main.h>
 #include "buffers.h"
 #include <PR/rcp.h>
-#include "data/trig_tables.h"
+#include "buffers/trig_tables.h"
 #include "math.h"
 
 #pragma intrinsic (sqrtf,fabs)

src/racing/math_util.h

@@ -69,8 +69,4 @@ f32  is_within_render_distance(Vec3f, Vec3f, u16, f32, f32, f32);
 extern s32 D_802B91C0[];
 extern Vec3f D_802B91C8;
 
-// end of math_util.c variables
-
-extern u16 gRandomSeed16;
-
 #endif // MATH_UTIL_H

src/racing/skybox_and_splitscreen.c

@@ -177,8 +177,8 @@ void func_802A39E0(struct UnkStruct_800DC5EC *arg0) {
 
     gDPPipeSync(gDisplayListHead++);
     gDPSetCycleType(gDisplayListHead++, G_CYC_FILL);
-    gDPSetDepthImage(gDisplayListHead++, D_801502B4);
-    gDPSetColorImage(gDisplayListHead++, G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WIDTH, D_801502B4);
+    gDPSetDepthImage(gDisplayListHead++, gPhysicalZBuffer);
+    gDPSetColorImage(gDisplayListHead++, G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WIDTH, gPhysicalZBuffer);
     gDPSetFillColor(gDisplayListHead++, 0xFFFCFFFC);
     gDPPipeSync(gDisplayListHead++);
     gDPSetScissor(gDisplayListHead++, G_SC_NON_INTERLACE, ulx, uly, lrx, lry);
@@ -197,8 +197,8 @@ void func_802A39E0(struct UnkStruct_800DC5EC *arg0) {
 void init_z_buffer(void) {
     gDPPipeSync(gDisplayListHead++);
     gDPSetCycleType(gDisplayListHead++, G_CYC_FILL);
-    gDPSetDepthImage(gDisplayListHead++, D_801502B4);
-    gDPSetColorImage(gDisplayListHead++, G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WIDTH, D_801502B4);
+    gDPSetDepthImage(gDisplayListHead++, gPhysicalZBuffer);
+    gDPSetColorImage(gDisplayListHead++, G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WIDTH, gPhysicalZBuffer);
     gDPSetFillColor(gDisplayListHead++, 0xFFFCFFFC);
     gDPPipeSync(gDisplayListHead++);
     gDPSetScissor(gDisplayListHead++, G_SC_NON_INTERLACE, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);