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#ifndef _VIDEO_RDPSPAN_H_
#define _VIDEO_RDPSPAN_H_
#include "emu.h"
namespace N64
{
namespace RDP
{
#define RDP_CVG_SPAN_MAX 1024
class OtherModes;
class MiscState;
class Processor;
class SpanParam
{
public:
union
{
UINT32 w;
#ifdef LSB_FIRST
struct { UINT16 l; INT16 h; } h;
#else
struct { INT16 h; UINT16 l; } h;
#endif
};
};
class Span
{
public:
Span() { }
void Dump();
void SetMachine(running_machine& machine);
void Draw1Cycle(int index, int tilenum, bool flip);
void Draw2Cycle(int index, int tilenum, bool flip);
void DrawCopy(int index, int tilenum, bool flip);
void DrawFill(int index, int tilenum, bool flip);
running_machine &machine() const { assert(m_machine != NULL); return *m_machine; }
public:
int m_lx;
int m_rx;
int m_unscissored_rx;
SpanParam m_s;
SpanParam m_t;
SpanParam m_w;
SpanParam m_r;
SpanParam m_g;
SpanParam m_b;
SpanParam m_a;
SpanParam m_z;
UINT16 m_cvg[RDP_CVG_SPAN_MAX];
private:
void RGBAZClip(int sr, int sg, int sb, int sa, int *sz);
void RGBAZCorrectTriangle(INT32 offx, INT32 offy, INT32* r, INT32* g, INT32* b, INT32* a, INT32* z);
running_machine* m_machine;
Processor* m_rdp;
MiscState* m_misc_state;
OtherModes* m_other_modes;
};
} // namespace RDP
} // namespace N64
#endif // _VIDEO_RDPSPAN_H_
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