chacha/V2TMUMemTester
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chacha
2026-02-27 21:44:24 +00:00
parent a0faa8661d
commit 496f032734
7 changed files with 1262 additions and 1015 deletions
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111
Draw.c
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@@ -25,36 +25,85 @@
#define ST_ONE (1 << SST_ST_FRACBITS)
#define W_ONE (1 << SST_W_FRACBITS)
void
drawSquare( const SstRegs *sst,
const int x,
const int y,
const int tSize)
typedef struct _def_sPoint
{
ISET(sst->vA.x,x);
ISET(sst->vA.y,y);
ISET(sst->vB.x,x+XY_ONE*tSize);
ISET(sst->vB.y,y);
ISET(sst->vC.x,x);
ISET(sst->vC.y,y+XY_ONE*tSize);
ISET(sst->s,0);
ISET(sst->t,0);
ISET(sst->w,W_ONE);
ISET(sst->dsdx,ST_ONE);
ISET(sst->dtdx,0);
ISET(sst->dwdx,0);
ISET(sst->dsdy,0);
ISET(sst->dtdy,ST_ONE);
ISET(sst->dwdy,0);
ISET(sst->triangleCMD,0);
ISET(sst->vA.x,x);
ISET(sst->vA.y,y+XY_ONE*tSize);
ISET(sst->vB.x,x+XY_ONE*tSize);
ISET(sst->vB.y,y);
ISET(sst->vC.x, x+XY_ONE*tSize);
ISET(sst->vC.y, y+XY_ONE*tSize);
ISET(sst->s,0);
ISET(sst->t,ST_ONE*tSize);
ISET(sst->w,W_ONE);
ISET(sst->triangleCMD, 0xFFFFFFFF);
int16_t x;
int16_t y;
}def_sPoint;
typedef struct _def_sTriangle
{
def_sPoint vA;
def_sPoint vB;
def_sPoint vC;
int32_t s;
int32_t t;
int32_t w;
int32_t dsdx;
int32_t dtdx;
int32_t dwdx;
int32_t dsdy;
int32_t dtdy;
int32_t dwdy;
}def_sTriangle;
static inline uint32_t v2_triangle_cmd_from_abc(const def_sPoint A,
const def_sPoint B,
const def_sPoint C)
{
const int32_t abx = (int32_t)B.x - (int32_t)A.x;
const int32_t aby = (int32_t)B.y - (int32_t)A.y;
const int32_t acx = (int32_t)C.x - (int32_t)A.x;
const int32_t acy = (int32_t)C.y - (int32_t)A.y;
const int64_t s = (int64_t )abx * (int64_t )acy - (int64_t )aby * (int64_t )acx;
return (s < 0) ? 0x80000000u : 0u;
}
static void inline drawTriangle(const SstRegs * const sst, const def_sTriangle * const sTri)
{
ISET(sst->vA.x, sTri->vA.x*XY_ONE); ISET(sst->vA.y, sTri->vA.y*XY_ONE);
ISET(sst->vB.x, sTri->vB.x*XY_ONE); ISET(sst->vB.y, sTri->vB.y*XY_ONE);
ISET(sst->vC.x, sTri->vC.x*XY_ONE); ISET(sst->vC.y, sTri->vC.y*XY_ONE);
ISET(sst->s, sTri->s*ST_ONE);
ISET(sst->t, sTri->t*ST_ONE);
ISET(sst->w, sTri->w*W_ONE);
ISET(sst->dsdx, sTri->dsdx*ST_ONE);
ISET(sst->dtdx, sTri->dtdx*ST_ONE);
ISET(sst->dwdx, sTri->dwdx*W_ONE);
ISET(sst->dsdy, sTri->dsdy*ST_ONE);
ISET(sst->dtdy, sTri->dtdy*ST_ONE);
ISET(sst->dwdy, sTri->dwdy*W_ONE);
ISET(sst->triangleCMD,v2_triangle_cmd_from_abc(sTri->vA, sTri->vB, sTri->vC));
}
void
drawSquare( const SstRegs * const sst,
const int16_t x,
const int16_t y,
const int16_t tSize)
{
const def_sTriangle tri1 = {
.vA = {.x= (x+0), .y = (y+0)},
.vB = {.x= (x+tSize), .y = (y+0)},
.vC = {.x= (x+0), .y = (y+tSize)},
.s = 0,
.t = 0,
.w = 1,
.dsdx = 1, .dtdx = 0,
.dwdx = 0
.dsdy = 0, .dtdy = 1,
.dwdy = 0};
drawTriangle(sst, &tri1);
const def_sTriangle tri2 = {
.vA = {.x= (x+0), .y = (y+tSize)},
.vB = {.x= (x+tSize), .y = (y+0)},
.vC = {.x= (x+tSize), .y = (y+tSize)},
.s = 0,
.t = tSize,
.w = 1,
.dsdx = 1, .dtdx = 0,
.dwdx = 0
.dsdy = 0, .dtdy = 1,
.dwdy = 0 };
drawTriangle(sst, &tri2);
}