mirror of
https://github.com/thug1src/thug.git
synced 2025-01-22 05:43:47 +00:00
322 lines
9.4 KiB
C
322 lines
9.4 KiB
C
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#ifndef __DMA_H
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#define __DMA_H
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#include "render.h"
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namespace NxPs2
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{
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class CGeomNode;
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#define PREBUILT_DMA_BUFFER_SIZE 32768
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// Random crashes in the engine can frequntly be traced to DMA buffer overflow
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// We probably need to add some cheking for this.
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//#define SPLIT_SCREEN_DMA_BUFFER_SIZE (675000 * 2) // split screen needs more
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//#define NON_DEBUG_DMA_BUFFER_SIZE (500000 * 2) // non split screen needs less
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#define NON_DEBUG_DMA_BUFFER_SIZE ((int)((675000 * 2)&0xffffffe0)) // non split screen needs less
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#define DEBUG_DMA_BUFFER_SIZE ((int)(16256000 & 0xffffffe0)) // Mick, 12 MB for debugging....
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class dma
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{
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public:
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enum eTag
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{ refe = 0,
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cnt = 1,
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next = 2,
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ref = 3,
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refs = 4,
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call = 5,
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ret = 6,
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end = 7
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};
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struct SSortElement
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{
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float z;
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uint8 *address;
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};
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//-------------------------------------------
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// S T A T I C F U N C T I O N S
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//-------------------------------------------
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static void Align(uint Offset, uint Boundary);
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static void Align();
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static void Store32(uint32 Data);
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static void Store32(uint32 Data1, uint32 Data2 );
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static void Store32(uint32 Data1, uint32 Data2, uint32 Data3 );
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static void Store32(uint32 Data1, uint32 Data2, uint32 Data3, uint32 Data4 );
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static void Store64(uint64 Data);
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static void Tag(eTag ID, uint QWC, uint ADDR);
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static void BeginTag(eTag ID, uint ADDR);
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static void EndTag(void);
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static void BeginSub(eTag ID);
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static uint64 EndSub(void);
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static void Gosub(uint Num, uint Path);
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static void BeginSub3D(void);
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static uint8 *EndSub3D(void);
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static void Gosub3D(uint8 *pSub, uint RenderFlags);
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static uint8 *NextTag(uint8 *pTag, bool stepInto);
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static int Cmp(const void *p1, const void *p2);
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static uint8 *SortGroup(uint8 *pList);
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static void BeginList(void *pGroup);
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static void EndList(void *pGroup);
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static void SetList(void *pGroup);
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static void ReallySetList(void *pGroup);
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static int GetDmaSize(uint8 *pTag);
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static int GetNumVertices(uint8 *pTag);
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static int GetNumTris(uint8 *pTag);
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static void Copy(uint8 *pTag, uint8 *pDest);
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static int GetBitLengthXYZ(uint8 *pTag);
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static void TransferValues(uint8 *pTag, uint8 *pArray, int size, int dir, uint32 vifcodeMask, uint32 vifcodePattern);
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static void TransferColours(uint8 *pTag, uint8 *pArray, int dir);
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static void ExtractXYZs(uint8 *pTag, uint8 *pArray);
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static void ReplaceXYZs(uint8 *pTag, uint8 *pArray, bool skipW = false);
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static void ExtractRGBAs(uint8 *pTag, uint8 *pArray);
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static void ReplaceRGBAs(uint8 *pTag, uint8 *pArray);
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static void ExtractSTs(uint8 *pTag, uint8 *pArray);
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static void ReplaceSTs(uint8 *pTag, uint8 *pArray);
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static void TransformSTs(uint8 *pTag, const Mth::Matrix &mat);
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static void ConvertXYZToFloat(Mth::Vector &vec, sint32 *p_xyz);
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static void ConvertXYZToFloat(Mth::Vector &vec, sint32 *p_xyz, const Mth::Vector ¢er);
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static void ConvertXYZToFloat(Mth::Vector &vec, sint32 *p_xyz, const sint32 *p_center);
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static void ConvertSTToFloat(float & s, float & t, sint32 *p_st);
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static void ConvertFloatToXYZ(sint32 *p_xyz, Mth::Vector &vec);
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static void ConvertFloatToXYZ(sint32 *p_xyz, Mth::Vector &vec, const Mth::Vector ¢er);
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static void ConvertFloatToXYZ(sint32 *p_xyz, Mth::Vector &vec, const sint32 *p_center);
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static void ConvertFloatToST(sint32 *p_st, float & s, float & t);
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static void SqueezeADC(uint8 *pTag);
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static void SqueezeNOP(uint8 *pTag);
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//---------------------------------
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// S T A T I C D A T A
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//---------------------------------
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static uint8 * pBase;
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static uint8 * pLoc;
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static uint8 * pTag;
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static uint8 * pPrebuiltBuffer;
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static uint8 * pDummyBuffer;
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static uint8 * pRuntimeBuffer;
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static uint8 * pList[2];
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static uint64 * Gosubs;
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static uint8 * pSub;
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static eTag ID;
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static int sp;
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static uint8 * Stack[2];
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static void * sp_group;
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static int size;
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}; // class dma
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// -------------------------------------------------
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// INLINE FUNCTIONS
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// -------------------------------------------------
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// align to Boundary, then add Offset
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// Boundary must be a power of 2
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inline void dma::Align(uint Offset, uint Boundary)
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{
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uint8 *NewDmaLoc = (uint8 *)((((uint)pLoc - Offset + Boundary - 1) & ((uint)(-(int)Boundary))) + Offset);
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while (pLoc < NewDmaLoc)
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*pLoc++ = 0;
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}
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// quick version for dma list building; assumes pLoc already word-aligned and you want it quadword-aligned
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inline void dma::Align()
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{
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while ((uint)pLoc & 0xF)
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{
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*(uint32 *)pLoc = 0;
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pLoc += 4;
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}
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}
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// store a word
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inline void dma::Store32(uint32 Data)
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{
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#if 0
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*(uint32 *)pLoc = Data;
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pLoc += 4;
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#else
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uint32 *p_loc = (uint32*)pLoc;
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p_loc[0] = Data;
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pLoc = (uint8*) (p_loc + 1);
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#endif
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}
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// Store two words, quicker this way, as we only have to update pLoc once
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inline void dma::Store32(uint32 Data1, uint32 Data2)
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{
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uint32 *p_loc = (uint32*)pLoc;
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p_loc[0] = Data1;
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p_loc[1] = Data2;
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pLoc = (uint8*) (p_loc + 2);
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}
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// Store three words, quicker this way, as we only have to update pLoc once
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inline void dma::Store32(uint32 Data1, uint32 Data2, uint32 Data3)
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{
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uint32 *p_loc = (uint32*)pLoc;
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p_loc[0] = Data1;
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p_loc[1] = Data2;
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p_loc[2] = Data3;
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pLoc = (uint8*) (p_loc + 3);
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}
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// Store four words, quicker this way, as we only have to update pLoc once
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inline void dma::Store32(uint32 Data1, uint32 Data2, uint32 Data3, uint32 Data4)
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{
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uint32 *p_loc = (uint32*)pLoc;
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p_loc[0] = Data1;
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p_loc[1] = Data2;
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p_loc[2] = Data3;
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p_loc[3] = Data4;
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pLoc = (uint8*) (p_loc + 4);
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}
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// store a dword
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inline void dma::Store64(uint64 Data)
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{
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((uint32 *)pLoc)[0] = (uint32)Data; // break into 2 words
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((uint32 *)pLoc)[1] = (uint32)(Data>>32); // because pLoc is only word-aligned
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pLoc += 8;
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}
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//--------------------------
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// D M A T A G S
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//--------------------------
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// generic source chain tag
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//
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// 63 62 32 31 30 28 27 26 25 16 15 0
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// <09><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ
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// <09>SPR<50> ADDR 0000<30>IRQ<52> ID <20> PCE <20> - <20> QWC <20>
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// <09><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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inline void dma::Tag(eTag ID, uint QWC, uint ADDR)
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{
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// assumes pLoc already qword aligned
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pTag = pLoc;
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Store32(ID<<28 | QWC, ADDR);
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}
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// Begin-End style
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inline void dma::BeginTag(eTag ID, uint ADDR)
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{
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// assumes pLoc already qword aligned
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pTag = pLoc; // record tag location for patching later
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Store32(ID<<28, ADDR);
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}
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// Begin-End style
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inline void dma::EndTag(void)
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{
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uint ID = (*(uint32 *)pTag >> 28) & 7; // get the tag ID field
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Align(); // align to qword boundary
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if (ID!=ref && ID!=refe && ID!=refs) // check that the QWC is patchable
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{
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((uint16 *)pTag)[0] = (pLoc - pTag - 8) >> 4;
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}
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}
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inline void dma::ConvertXYZToFloat(Mth::Vector &vec, sint32 *p_xyz)
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{
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vec[X] = ((float) *(p_xyz++)) * RECIPROCAL_SUB_INCH_PRECISION;
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vec[Y] = ((float) *(p_xyz++)) * RECIPROCAL_SUB_INCH_PRECISION;
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vec[Z] = ((float) *(p_xyz) ) * RECIPROCAL_SUB_INCH_PRECISION;
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vec[W] = 1.0f;
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}
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inline void dma::ConvertXYZToFloat(Mth::Vector &vec, sint32 *p_xyz, const Mth::Vector ¢er)
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{
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vec[X] = (((float) *(p_xyz++)) * RECIPROCAL_SUB_INCH_PRECISION) + center[X];
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vec[Y] = (((float) *(p_xyz++)) * RECIPROCAL_SUB_INCH_PRECISION) + center[Y];
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vec[Z] = (((float) *(p_xyz) ) * RECIPROCAL_SUB_INCH_PRECISION) + center[Z];
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vec[W] = 1.0f;
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}
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inline void dma::ConvertXYZToFloat(Mth::Vector &vec, sint32 *p_xyz, const sint32 *p_center)
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{
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vec[X] = ((float) (*(p_xyz++) + *(p_center++))) * RECIPROCAL_SUB_INCH_PRECISION;
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vec[Y] = ((float) (*(p_xyz++) + *(p_center++))) * RECIPROCAL_SUB_INCH_PRECISION;
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vec[Z] = ((float) (*(p_xyz) + *(p_center) )) * RECIPROCAL_SUB_INCH_PRECISION;
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vec[W] = 1.0f;
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}
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inline void dma::ConvertSTToFloat(float & s, float & t, sint32 *p_st)
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{
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s = ((float) *(p_st++)) * (1.0f / 4096.0f);
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t = ((float) *(p_st) ) * (1.0f / 4096.0f);
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}
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inline void dma::ConvertFloatToXYZ(sint32 *p_xyz, Mth::Vector &vec)
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{
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*(p_xyz++) = (sint32) (vec[X] * SUB_INCH_PRECISION);
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*(p_xyz++) = (sint32) (vec[Y] * SUB_INCH_PRECISION);
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*(p_xyz) = (sint32) (vec[Z] * SUB_INCH_PRECISION);
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}
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inline void dma::ConvertFloatToXYZ(sint32 *p_xyz, Mth::Vector &vec, const sint32 *p_center)
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{
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*(p_xyz++) = ((sint32) (vec[X] * SUB_INCH_PRECISION)) - *(p_center++);
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*(p_xyz++) = ((sint32) (vec[Y] * SUB_INCH_PRECISION)) - *(p_center++);
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*(p_xyz) = ((sint32) (vec[Z] * SUB_INCH_PRECISION)) - *(p_center);
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}
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inline void dma::ConvertFloatToST(sint32 *p_st, float & s, float & t)
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{
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*(p_st++) = (sint32) (s * 4096.0f);
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*(p_st) = (sint32) (t * 4096.0f);
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}
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inline void dma::SetList(void *pGroup)
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{
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// do nothing if we're already in the right dma context
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// (Mick) This part has been moved to an inline function
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// since the overhead of setting up the stack frame
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// is large, this is a more efficient way of taking advantage of
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// group coherency. This represents a 25% speed improvmeent for this function
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// just 0.25% of a frame. But every little helps.
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if (sp_group != pGroup)
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|||
|
|
{
|
|||
|
|
ReallySetList(pGroup);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
} // namespace NxPs2
|
|||
|
|
|
|||
|
|
|
|||
|
|
#endif // __DMA_H
|
|||
|
|
|