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gSP.cpp
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#include <math.h>
#include "glN64.h"
#include "Debug.h"
#include "Types.h"
#include "RSP.h"
#include "GBI.h"
#include "gSP.h"
#include "gDP.h"
#include "3DMath.h"
#include "OpenGL.h"
#include "CRC.h"
#include <string.h>
#include "convert.h"
#include "S2DEX.h"
#include "VI.h"
#include "DepthBuffer.h"
#include "Resource.h"
#define gSPFlushTriangles() \
if ((OGL.numTriangles > 0) && \
(RSP.nextCmd != G_TRI1) && \
(RSP.nextCmd != G_TRI2) && \
(RSP.nextCmd != G_TRI4) && \
(RSP.nextCmd != G_QUAD) && \
(RSP.nextCmd != G_DMA_TRI)) \
OGL_DrawTriangles()
gSPInfo gSP;
f32 identityMatrix[4][4] =
{
{1.0f, 0.0f, 0.0f, 0.0f},
{0.0f, 1.0f, 0.0f, 0.0f},
{0.0f, 0.0f, 1.0f, 0.0f},
{0.0f, 0.0f, 0.0f, 1.0f}
};
void gSPLoadUcodeEx(u32 uc_start, u32 uc_dstart, u16 uc_dsize)
{
RSP.PCi = 0;
gSP.matrix.modelViewi = 0;
gSP.changed |= CHANGED_MATRIX;
gSP.status[0] = gSP.status[1] = gSP.status[2] = gSP.status[3] = 0;
if ((((uc_start & 0x1FFFFFFF) + 4096) > RDRAMSize) || (((uc_dstart & 0x1FFFFFFF) + uc_dsize) > RDRAMSize))
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Attempting to loud ucode out of invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPLoadUcodeEx( 0x%08X, 0x%08X, %i );\n", uc_start, uc_dstart, uc_dsize );
#endif
return;
}
MicrocodeInfo* ucode = GBI_DetectMicrocode(uc_start, uc_dstart, uc_dsize);
if (ucode->type != NONE)
GBI_MakeCurrent(ucode);
else
SetEvent(RSP.threadMsg[RSPMSG_CLOSE]);
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Unknown microcode: 0x%08X, 0x%08X, %s\n", uc_crc, uc_dcrc, uc_str );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPLoadUcodeEx( 0x%08X, 0x%08X, %i );\n", uc_start, uc_dstart, uc_dsize );
#endif
}
void gSPCombineMatrices()
{
CopyMatrix(gSP.matrix.combined, gSP.matrix.projection);
MultMatrix(gSP.matrix.combined, gSP.matrix.modelView[gSP.matrix.modelViewi]);
gSP.changed &= ~CHANGED_MATRIX;
}
void gSPProcessVertex(u32 v)
{
f32 intensity;
f32 r, g, b;
if (gSP.changed & CHANGED_MATRIX)
gSPCombineMatrices();
TransformVertex(&gSP.vertices[v].x, gSP.matrix.combined);
if (gSP.matrix.billboard)
{
gSP.vertices[v].x += gSP.vertices[0].x;
gSP.vertices[v].y += gSP.vertices[0].y;
gSP.vertices[v].z += gSP.vertices[0].z;
gSP.vertices[v].w += gSP.vertices[0].w;
}
if (!(gSP.geometryMode & G_ZBUFFER))
{
gSP.vertices[v].z = -gSP.vertices[v].w;
}
if (gSP.geometryMode & G_LIGHTING)
{
TransformVector(&gSP.vertices[v].nx, gSP.matrix.modelView[gSP.matrix.modelViewi]);
Normalize(&gSP.vertices[v].nx);
r = gSP.lights[gSP.numLights].r;
g = gSP.lights[gSP.numLights].g;
b = gSP.lights[gSP.numLights].b;
for (int i = 0; i < gSP.numLights; i++)
{
intensity = DotProduct(&gSP.vertices[v].nx, &gSP.lights[i].x);
if (intensity < 0.0f) intensity = 0.0f;
r += gSP.lights[i].r * intensity;
g += gSP.lights[i].g * intensity;
b += gSP.lights[i].b * intensity;
}
gSP.vertices[v].r = r;
gSP.vertices[v].g = g;
gSP.vertices[v].b = b;
if (gSP.geometryMode & G_TEXTURE_GEN)
{
TransformVector(&gSP.vertices[v].nx, gSP.matrix.projection);
Normalize(&gSP.vertices[v].nx);
if (gSP.geometryMode & G_TEXTURE_GEN_LINEAR)
{
gSP.vertices[v].s = acosf(gSP.vertices[v].nx) * 325.94931f;
gSP.vertices[v].t = acosf(gSP.vertices[v].ny) * 325.94931f;
}
else // G_TEXTURE_GEN
{
gSP.vertices[v].s = (gSP.vertices[v].nx + 1.0f) * 512.0f;
gSP.vertices[v].t = (gSP.vertices[v].ny + 1.0f) * 512.0f;
}
}
}
if (gSP.vertices[v].x < -gSP.vertices[v].w)
gSP.vertices[v].xClip = -1.0f;
else if (gSP.vertices[v].x > gSP.vertices[v].w)
gSP.vertices[v].xClip = 1.0f;
else
gSP.vertices[v].xClip = 0.0f;
if (gSP.vertices[v].y < -gSP.vertices[v].w)
gSP.vertices[v].yClip = -1.0f;
else if (gSP.vertices[v].y > gSP.vertices[v].w)
gSP.vertices[v].yClip = 1.0f;
else
gSP.vertices[v].yClip = 0.0f;
if (gSP.vertices[v].w <= 0.0f)
gSP.vertices[v].zClip = -1.0f;
else if (gSP.vertices[v].z < -gSP.vertices[v].w)
gSP.vertices[v].zClip = -0.1f;
else if (gSP.vertices[v].z > gSP.vertices[v].w)
gSP.vertices[v].zClip = 1.0f;
else
gSP.vertices[v].zClip = 0.0f;
}
void gSPNoOp()
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_IGNORED, "gSPNoOp();\n" );
#endif
}
void gSPMatrix(u32 matrix, u8 param)
{
f32 mtx[4][4];
u32 address = RSP_SegmentToPhysical(matrix);
if (address + 64 > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_MATRIX, "// Attempting to load matrix from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_MATRIX, "gSPMatrix( 0x%08X, %s | %s | %s );\n",
matrix,
(param & G_MTX_PROJECTION) ? "G_MTX_PROJECTION" : "G_MTX_MODELVIEW",
(param & G_MTX_LOAD) ? "G_MTX_LOAD" : "G_MTX_MUL",
(param & G_MTX_PUSH) ? "G_MTX_PUSH" : "G_MTX_NOPUSH" );
#endif
return;
}
RSP_LoadMatrix(mtx, address);
if (param & G_MTX_PROJECTION)
{
if (param & G_MTX_LOAD)
CopyMatrix(gSP.matrix.projection, mtx);
else
MultMatrix(gSP.matrix.projection, mtx);
}
else
{
if ((param & G_MTX_PUSH) && (gSP.matrix.modelViewi < (gSP.matrix.stackSize - 1)))
{
CopyMatrix(gSP.matrix.modelView[gSP.matrix.modelViewi + 1], gSP.matrix.modelView[gSP.matrix.modelViewi]);
gSP.matrix.modelViewi++;
}
#ifdef DEBUG
else
DebugMsg( DEBUG_ERROR | DEBUG_MATRIX, "// Modelview stack overflow\n" );
#endif
if (param & G_MTX_LOAD)
CopyMatrix(gSP.matrix.modelView[gSP.matrix.modelViewi], mtx);
else
MultMatrix(gSP.matrix.modelView[gSP.matrix.modelViewi], mtx);
}
gSP.changed |= CHANGED_MATRIX;
#ifdef DEBUG
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_MATRIX, "// %12.6f %12.6f %12.6f %12.6f\n",
mtx[0][0], mtx[0][1], mtx[0][2], mtx[0][3] );
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_MATRIX, "// %12.6f %12.6f %12.6f %12.6f\n",
mtx[1][0], mtx[1][1], mtx[1][2], mtx[1][3] );
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_MATRIX, "// %12.6f %12.6f %12.6f %12.6f\n",
mtx[2][0], mtx[2][1], mtx[2][2], mtx[2][3] );
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_MATRIX, "// %12.6f %12.6f %12.6f %12.6f\n",
mtx[3][0], mtx[3][1], mtx[3][2], mtx[3][3] );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_MATRIX, "gSPMatrix( 0x%08X, %s | %s | %s );\n",
matrix,
(param & G_MTX_PROJECTION) ? "G_MTX_PROJECTION" : "G_MTX_MODELVIEW",
(param & G_MTX_LOAD) ? "G_MTX_LOAD" : "G_MTX_MUL",
(param & G_MTX_PUSH) ? "G_MTX_PUSH" : "G_MTX_NOPUSH" );
#endif
}
void gSPDMAMatrix(u32 matrix, u8 index, u8 multiply)
{
f32 mtx[4][4];
u32 address = gSP.DMAOffsets.mtx + RSP_SegmentToPhysical(matrix);
if (address + 64 > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_MATRIX, "// Attempting to load matrix from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_MATRIX, "gSPDMAMatrix( 0x%08X, %i, %s );\n",
matrix, index, multiply ? "TRUE" : "FALSE" );
#endif
return;
}
RSP_LoadMatrix(mtx, address);
gSP.matrix.modelViewi = index;
if (multiply)
{
CopyMatrix(gSP.matrix.modelView[gSP.matrix.modelViewi], gSP.matrix.modelView[0]);
MultMatrix(gSP.matrix.modelView[gSP.matrix.modelViewi], mtx);
}
else
CopyMatrix(gSP.matrix.modelView[gSP.matrix.modelViewi], mtx);
CopyMatrix(gSP.matrix.projection, identityMatrix);
gSP.changed |= CHANGED_MATRIX;
#ifdef DEBUG
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_MATRIX, "// %12.6f %12.6f %12.6f %12.6f\n",
mtx[0][0], mtx[0][1], mtx[0][2], mtx[0][3] );
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_MATRIX, "// %12.6f %12.6f %12.6f %12.6f\n",
mtx[1][0], mtx[1][1], mtx[1][2], mtx[1][3] );
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_MATRIX, "// %12.6f %12.6f %12.6f %12.6f\n",
mtx[2][0], mtx[2][1], mtx[2][2], mtx[2][3] );
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_MATRIX, "// %12.6f %12.6f %12.6f %12.6f\n",
mtx[3][0], mtx[3][1], mtx[3][2], mtx[3][3] );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_MATRIX, "gSPDMAMatrix( 0x%08X, %i, %s );\n",
matrix, index, multiply ? "TRUE" : "FALSE" );
#endif
}
void gSPViewport(u32 v)
{
u32 address = RSP_SegmentToPhysical(v);
if ((address + 16) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Attempting to load viewport from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPViewport( 0x%08X );\n", v );
#endif
return;
}
gSP.viewport.vscale[0] = _FIXED2FLOAT(*(s16*)&RDRAM[address + 2], 2);
gSP.viewport.vscale[1] = _FIXED2FLOAT(*(s16*)&RDRAM[address ], 2);
gSP.viewport.vscale[2] = _FIXED2FLOAT(*(s16*)&RDRAM[address + 6], 10); // * 0.00097847357f;
gSP.viewport.vscale[3] = *(s16*)&RDRAM[address + 4];
gSP.viewport.vtrans[0] = _FIXED2FLOAT(*(s16*)&RDRAM[address + 10], 2);
gSP.viewport.vtrans[1] = _FIXED2FLOAT(*(s16*)&RDRAM[address + 8], 2);
gSP.viewport.vtrans[2] = _FIXED2FLOAT(*(s16*)&RDRAM[address + 14], 10); // * 0.00097847357f;
gSP.viewport.vtrans[3] = *(s16*)&RDRAM[address + 12];
gSP.viewport.x = gSP.viewport.vtrans[0] - gSP.viewport.vscale[0];
gSP.viewport.y = gSP.viewport.vtrans[1] - gSP.viewport.vscale[1];
gSP.viewport.width = gSP.viewport.vscale[0] * 2;
gSP.viewport.height = gSP.viewport.vscale[1] * 2;
gSP.viewport.nearz = gSP.viewport.vtrans[2] - gSP.viewport.vscale[2];
gSP.viewport.farz = (gSP.viewport.vtrans[2] + gSP.viewport.vscale[2]);
gSP.changed |= CHANGED_VIEWPORT;
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPViewport( 0x%08X );\n", v );
#endif
}
void gSPForceMatrix(u32 mptr)
{
u32 address = RSP_SegmentToPhysical(mptr);
if (address + 64 > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_MATRIX, "// Attempting to load from invalid address" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_MATRIX, "gSPForceMatrix( 0x%08X );\n", mptr );
#endif
return;
}
RSP_LoadMatrix(gSP.matrix.combined, RSP_SegmentToPhysical(mptr));
gSP.changed &= ~CHANGED_MATRIX;
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_MATRIX, "gSPForceMatrix( 0x%08X );\n", mptr );
#endif
}
void gSPLight(u32 l, s32 n)
{
n--;
u32 address = RSP_SegmentToPhysical(l);
if ((address + sizeof(Light)) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Attempting to load light from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPLight( 0x%08X, LIGHT_%i );\n",
l, n );
#endif
return;
}
auto light = (Light*)&RDRAM[address];
if (n < 8)
{
gSP.lights[n].r = light->r * 0.0039215689f;
gSP.lights[n].g = light->g * 0.0039215689f;
gSP.lights[n].b = light->b * 0.0039215689f;
gSP.lights[n].x = light->x;
gSP.lights[n].y = light->y;
gSP.lights[n].z = light->z;
Normalize(&gSP.lights[n].x);
}
#ifdef DEBUG
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED, "// x = %2.6f y = %2.6f z = %2.6f\n",
_FIXED2FLOAT( light->x, 7 ), _FIXED2FLOAT( light->y, 7 ), _FIXED2FLOAT( light->z, 7 ) );
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED, "// r = %3i g = %3i b = %3i\n",
light->r, light->g, light->b );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPLight( 0x%08X, LIGHT_%i );\n",
l, n );
#endif
}
void gSPLookAt(u32 l)
{
}
void gSPVertex(u32 v, u32 n, u32 v0)
{
u32 address = RSP_SegmentToPhysical(v);
if ((address + sizeof(Vertex) * n) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_VERTEX, "// Attempting to load vertices from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_VERTEX, "gSPVertex( 0x%08X, %i, %i );\n",
v, n, v0 );
#endif
return;
}
auto vertex = (Vertex*)&RDRAM[address];
if ((n + v0) < (80))
{
for (int i = v0; i < n + v0; i++)
{
gSP.vertices[i].x = vertex->x;
gSP.vertices[i].y = vertex->y;
gSP.vertices[i].z = vertex->z;
gSP.vertices[i].flag = vertex->flag;
gSP.vertices[i].s = _FIXED2FLOAT(vertex->s, 5);
gSP.vertices[i].t = _FIXED2FLOAT(vertex->t, 5);
if (gSP.geometryMode & G_LIGHTING)
{
gSP.vertices[i].nx = vertex->normal.x;
gSP.vertices[i].ny = vertex->normal.y;
gSP.vertices[i].nz = vertex->normal.z;
gSP.vertices[i].a = vertex->color.a * 0.0039215689f;
}
else
{
gSP.vertices[i].r = vertex->color.r * 0.0039215689f;
gSP.vertices[i].g = vertex->color.g * 0.0039215689f;
gSP.vertices[i].b = vertex->color.b * 0.0039215689f;
gSP.vertices[i].a = vertex->color.a * 0.0039215689f;
}
#ifdef DEBUG
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_VERTEX, "// x = %6i y = %6i z = %6i \n",
vertex->x, vertex->y, vertex->z );
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_VERTEX, "// s = %5.5f t = %5.5f flag = %i \n",
vertex->s, vertex->t, vertex->flag );
if (gSP.geometryMode & G_LIGHTING)
{
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_VERTEX, "// nx = %2.6f ny = %2.6f nz = %2.6f\n",
_FIXED2FLOAT( vertex->normal.x, 7 ), _FIXED2FLOAT( vertex->normal.y, 7 ), _FIXED2FLOAT( vertex->normal.z, 7 ) );
}
else
{
DebugMsg( DEBUG_DETAIL | DEBUG_HANDLED | DEBUG_VERTEX, "// r = %3u g = %3u b = %3u a = %3u\n",
vertex->color.r, vertex->color.g, vertex->color.b, vertex->color.a );
}
#endif
gSPProcessVertex(i);
vertex++;
}
}
#ifdef DEBUG
else
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_VERTEX, "// Attempting to load vertices past vertex buffer size\n" );
#endif
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_VERTEX, "gSPVertex( 0x%08X, %i, %i );\n",
v, n, v0 );
#endif
}
void gSPCIVertex(u32 v, u32 n, u32 v0)
{
u32 address = RSP_SegmentToPhysical(v);
if ((address + sizeof(PDVertex) * n) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_VERTEX, "// Attempting to load vertices from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_VERTEX, "gSPCIVertex( 0x%08X, %i, %i );\n",
v, n, v0 );
#endif
return;
}
auto vertex = (PDVertex*)&RDRAM[address];
if ((n + v0) < (80))
{
for (int i = v0; i < n + v0; i++)
{
gSP.vertices[i].x = vertex->x;
gSP.vertices[i].y = vertex->y;
gSP.vertices[i].z = vertex->z;
gSP.vertices[i].flag = 0;
gSP.vertices[i].s = _FIXED2FLOAT(vertex->s, 5);
gSP.vertices[i].t = _FIXED2FLOAT(vertex->t, 5);
u8* color = &RDRAM[gSP.vertexColorBase + (vertex->ci & 0xff)];
if (gSP.geometryMode & G_LIGHTING)
{
gSP.vertices[i].nx = (s8)color[3];
gSP.vertices[i].ny = (s8)color[2];
gSP.vertices[i].nz = (s8)color[1];
gSP.vertices[i].a = color[0] * 0.0039215689f;
}
else
{
gSP.vertices[i].r = color[3] * 0.0039215689f;
gSP.vertices[i].g = color[2] * 0.0039215689f;
gSP.vertices[i].b = color[1] * 0.0039215689f;
gSP.vertices[i].a = color[0] * 0.0039215689f;
}
gSPProcessVertex(i);
vertex++;
}
}
#ifdef DEBUG
else
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_VERTEX, "// Attempting to load vertices past vertex buffer size\n" );
#endif
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_VERTEX, "gSPCIVertex( 0x%08X, %i, %i );\n",
v, n, v0 );
#endif
}
void gSPDMAVertex(u32 v, u32 n, u32 v0)
{
u32 address = gSP.DMAOffsets.vtx + RSP_SegmentToPhysical(v);
if ((address + 10 * n) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_VERTEX, "// Attempting to load vertices from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_VERTEX, "gSPDMAVertex( 0x%08X, %i, %i );\n",
v, n, v0 );
#endif
return;
}
if ((n + v0) < (80))
{
for (int i = v0; i < n + v0; i++)
{
gSP.vertices[i].x = *(s16*)&RDRAM[address ^ 2];
gSP.vertices[i].y = *(s16*)&RDRAM[(address + 2) ^ 2];
gSP.vertices[i].z = *(s16*)&RDRAM[(address + 4) ^ 2];
if (gSP.geometryMode & G_LIGHTING)
{
gSP.vertices[i].nx = *(s8*)&RDRAM[(address + 6) ^ 3];
gSP.vertices[i].ny = *(s8*)&RDRAM[(address + 7) ^ 3];
gSP.vertices[i].nz = *(s8*)&RDRAM[(address + 8) ^ 3];
gSP.vertices[i].a = *(u8*)&RDRAM[(address + 9) ^ 3] * 0.0039215689f;
}
else
{
gSP.vertices[i].r = *(u8*)&RDRAM[(address + 6) ^ 3] * 0.0039215689f;
gSP.vertices[i].g = *(u8*)&RDRAM[(address + 7) ^ 3] * 0.0039215689f;
gSP.vertices[i].b = *(u8*)&RDRAM[(address + 8) ^ 3] * 0.0039215689f;
gSP.vertices[i].a = *(u8*)&RDRAM[(address + 9) ^ 3] * 0.0039215689f;
}
gSPProcessVertex(i);
address += 10;
}
}
#ifdef DEBUG
else
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_VERTEX, "// Attempting to load vertices past vertex buffer size\n" );
#endif
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_VERTEX, "gSPDMAVertex( 0x%08X, %i, %i );\n",
v, n, v0 );
#endif
}
void gSPDisplayList(u32 dl)
{
u32 address = RSP_SegmentToPhysical(dl);
if ((address + 8) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Attempting to load display list from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPDisplayList( 0x%08X );\n",
dl );
#endif
return;
}
if (RSP.PCi < (GBI.PCStackSize - 1))
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPDisplayList( 0x%08X );\n",
dl );
#endif
RSP.PCi++;
RSP.PC[RSP.PCi] = address;
}
#ifdef DEBUG
else
{
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// PC stack overflow\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPDisplayList( 0x%08X );\n",
dl );
}
#endif
}
void gSPDMADisplayList(u32 dl, u32 n)
{
if ((dl + (n << 3)) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Attempting to load display list from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPDMADisplayList( 0x%08X, %i );\n",
dl, n );
#endif
return;
}
u32 curDL = RSP.PC[RSP.PCi];
RSP.PC[RSP.PCi] = RSP_SegmentToPhysical(dl);
while ((RSP.PC[RSP.PCi] - dl) < (n << 3))
{
if ((RSP.PC[RSP.PCi] + 8) > RDRAMSize)
{
#ifdef DEBUG
switch (Debug.level)
{
case DEBUG_LOW:
DebugMsg( DEBUG_LOW | DEBUG_ERROR, "ATTEMPTING TO EXECUTE RSP COMMAND AT INVALID RDRAM LOCATION\n" );
break;
case DEBUG_MEDIUM:
DebugMsg( DEBUG_MEDIUM | DEBUG_ERROR, "Attempting to execute RSP command at invalid RDRAM location\n" );
break;
case DEBUG_HIGH:
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Attempting to execute RSP command at invalid RDRAM location\n" );
break;
}
#endif
break;
}
u32 w0 = *(u32*)&RDRAM[RSP.PC[RSP.PCi]];
u32 w1 = *(u32*)&RDRAM[RSP.PC[RSP.PCi] + 4];
#ifdef DEBUG
DebugRSPState( RSP.PCi, RSP.PC[RSP.PCi], _SHIFTR( w0, 24, 8 ), w0, w1 );
DebugMsg( DEBUG_LOW | DEBUG_HANDLED, "0x%08lX: CMD=0x%02lX W0=0x%08lX W1=0x%08lX\n", RSP.PC[RSP.PCi], _SHIFTR( w0, 24, 8 ), w0, w1 );
#endif
RSP.PC[RSP.PCi] += 8;
RSP.nextCmd = _SHIFTR(*(u32*)&RDRAM[RSP.PC[RSP.PCi]], 24, 8);
GBI.cmd[_SHIFTR(w0, 24, 8)](w0, w1);
}
RSP.PC[RSP.PCi] = curDL;
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPDMADisplayList( 0x%08X, %i );\n",
dl, n );
#endif
}
void gSPBranchList(u32 dl)
{
u32 address = RSP_SegmentToPhysical(dl);
if ((address + 8) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Attempting to branch to display list at invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPBranchList( 0x%08X );\n",
dl );
#endif
return;
}
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPBranchList( 0x%08X );\n",
dl );
#endif
RSP.PC[RSP.PCi] = address;
}
void gSPBranchLessZ(u32 branchdl, u32 vtx, f32 zval)
{
u32 address = RSP_SegmentToPhysical(branchdl);
if ((address + 8) > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR, "// Specified display list at invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPBranchLessZ( 0x%08X, %i, %i );\n",
branchdl, vtx, zval );
#endif
return;
}
if (gSP.vertices[vtx].z <= zval)
RSP.PC[RSP.PCi] = address;
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPBranchLessZ( 0x%08X, %i, %i );\n",
branchdl, vtx, zval );
#endif
}
void gSPSetDMAOffsets(u32 mtxoffset, u32 vtxoffset)
{
gSP.DMAOffsets.mtx = mtxoffset;
gSP.DMAOffsets.vtx = vtxoffset;
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPSetDMAOffsets( 0x%08X, 0x%08X );\n",
mtxoffset, vtxoffset );
#endif
}
void gSPSetVertexColorBase(u32 base)
{
gSP.vertexColorBase = RSP_SegmentToPhysical(base);
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "gSPSetVertexColorBase( 0x%08X );\n",
base );
#endif
}
void gSPSprite2DBase(u32 base)
{
}
void gSPCopyVertex(SPVertex* dest, SPVertex* src)
{
dest->x = src->x;
dest->y = src->y;
dest->z = src->z;
dest->w = src->w;
dest->r = src->r;
dest->g = src->g;
dest->b = src->b;
dest->a = src->a;
dest->s = src->s;
dest->t = src->t;
}
void gSPInterpolateVertex(SPVertex* dest, f32 percent, SPVertex* first, SPVertex* second)
{
dest->x = first->x + percent * (second->x - first->x);
dest->y = first->y + percent * (second->y - first->y);
dest->z = first->z + percent * (second->z - first->z);
dest->w = first->w + percent * (second->w - first->w);
dest->r = first->r + percent * (second->r - first->r);
dest->g = first->g + percent * (second->g - first->g);
dest->b = first->b + percent * (second->b - first->b);
dest->a = first->a + percent * (second->a - first->a);
dest->s = first->s + percent * (second->s - first->s);
dest->t = first->t + percent * (second->t - first->t);
}
void gSPTriangle(s32 v0, s32 v1, s32 v2, s32 flag)
{
if ((v0 < 80) && (v1 < 80) && (v2 < 80))
{
// Don't bother with triangles completely outside clipping frustrum
if (((gSP.vertices[v0].xClip < 0.0f) &&
(gSP.vertices[v1].xClip < 0.0f) &&
(gSP.vertices[v2].xClip < 0.0f)) ||
((gSP.vertices[v0].xClip > 0.0f) &&
(gSP.vertices[v1].xClip > 0.0f) &&
(gSP.vertices[v2].xClip > 0.0f)) ||
((gSP.vertices[v0].yClip < 0.0f) &&
(gSP.vertices[v1].yClip < 0.0f) &&
(gSP.vertices[v2].yClip < 0.0f)) ||
((gSP.vertices[v0].yClip > 0.0f) &&
(gSP.vertices[v1].yClip > 0.0f) &&
(gSP.vertices[v2].yClip > 0.0f)) ||
((gSP.vertices[v0].zClip > 0.1f) &&
(gSP.vertices[v1].zClip > 0.1f) &&
(gSP.vertices[v2].zClip > 0.1f)) ||
((gSP.vertices[v0].zClip < -0.1f) &&
(gSP.vertices[v1].zClip < -0.1f) &&
(gSP.vertices[v2].zClip < -0.1f)))
return;
// NoN work-around, clips triangles, and draws the clipped-off parts with clamped z
if (GBI.current->NoN &&
((gSP.vertices[v0].zClip < 0.0f) ||
(gSP.vertices[v1].zClip < 0.0f) ||
(gSP.vertices[v2].zClip < 0.0f)))
{
SPVertex nearVertices[4];
SPVertex clippedVertices[4];
s32 numNearTris = 0;
s32 numClippedTris = 0;
s32 nearIndex = 0;
s32 clippedIndex = 0;
s32 v[3] = {v0, v1, v2};
for (s32 i = 0; i < 3; i++)
{
s32 j = i + 1;
if (j == 3) j = 0;
if (((gSP.vertices[v[i]].zClip < 0.0f) && (gSP.vertices[v[j]].zClip >= 0.0f)) ||
((gSP.vertices[v[i]].zClip >= 0.0f) && (gSP.vertices[v[j]].zClip < 0.0f)))
{
f32 percent = (-gSP.vertices[v[i]].w - gSP.vertices[v[i]].z) / ((gSP.vertices[v[j]].z - gSP.vertices[v[i]].z) + (gSP.vertices[v[j]].w - gSP.vertices[v[i]].w));
gSPInterpolateVertex(&clippedVertices[clippedIndex], percent, &gSP.vertices[v[i]], &gSP.vertices[v[j]]);
gSPCopyVertex(&nearVertices[nearIndex], &clippedVertices[clippedIndex]);
nearVertices[nearIndex].z = -nearVertices[nearIndex].w;
clippedIndex++;
nearIndex++;
}
if (((gSP.vertices[v[i]].zClip < 0.0f) && (gSP.vertices[v[j]].zClip >= 0.0f)) ||
((gSP.vertices[v[i]].zClip >= 0.0f) && (gSP.vertices[v[j]].zClip >= 0.0f)))
{
gSPCopyVertex(&clippedVertices[clippedIndex], &gSP.vertices[v[j]]);
clippedIndex++;
}
else
{
gSPCopyVertex(&nearVertices[nearIndex], &gSP.vertices[v[j]]);
nearVertices[nearIndex].z = -nearVertices[nearIndex].w; // + 0.00001f;
nearIndex++;
}
}
OGL_AddTriangle(clippedVertices, 0, 1, 2);
if (clippedIndex == 4)
OGL_AddTriangle(clippedVertices, 0, 2, 3);
glDisable(GL_POLYGON_OFFSET_FILL);
// glDepthFunc( GL_LEQUAL );
OGL_AddTriangle(nearVertices, 0, 1, 2);
if (nearIndex == 4)
OGL_AddTriangle(nearVertices, 0, 2, 3);
if (gDP.otherMode.depthMode == ZMODE_DEC)
glEnable(GL_POLYGON_OFFSET_FILL);
// if (gDP.otherMode.depthCompare)
// glDepthFunc( GL_LEQUAL );
}
else
OGL_AddTriangle(gSP.vertices, v0, v1, v2);
}
#ifdef DEBUG
else
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_TRIANGLE, "// Vertex index out of range\n" );
#endif
if (depthBuffer.current) depthBuffer.current->cleared = FALSE;
gDP.colorImage.changed = TRUE;
gDP.colorImage.height = max(gDP.colorImage.height, gDP.scissor.lry);
}
void gSP1Triangle(s32 v0, s32 v1, s32 v2, s32 flag)
{
gSPTriangle(v0, v1, v2, flag);
gSPFlushTriangles();
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, "gSP1Triangle( %i, %i, %i, %i );\n",
v0, v1, v2, flag );
#endif
}
void gSP2Triangles(s32 v00, s32 v01, s32 v02, s32 flag0,
s32 v10, s32 v11, s32 v12, s32 flag1)
{
gSPTriangle(v00, v01, v02, flag0);
gSPTriangle(v10, v11, v12, flag1);
gSPFlushTriangles();
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, "gSP2Triangles( %i, %i, %i, %i,\n",
v00, v01, v02, flag0 );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, " %i, %i, %i, %i );\n",
v10, v11, v12, flag1 );
#endif
}
void gSP4Triangles(s32 v00, s32 v01, s32 v02,
s32 v10, s32 v11, s32 v12,
s32 v20, s32 v21, s32 v22,
s32 v30, s32 v31, s32 v32)
{
gSPTriangle(v00, v01, v02, 0);
gSPTriangle(v10, v11, v12, 0);
gSPTriangle(v20, v21, v22, 0);
gSPTriangle(v30, v31, v32, 0);
gSPFlushTriangles();
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, "gSP4Triangles( %i, %i, %i,\n",
v00, v01, v02 );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, " %i, %i, %i,\n",
v10, v11, v12 );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, " %i, %i, %i,\n",
v20, v21, v22 );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, " %i, %i, %i );\n",
v30, v31, v32 );
#endif
}
void gSPDMATriangles(u32 tris, u32 n)
{
u32 address = RSP_SegmentToPhysical(tris);
if (address + sizeof(DKRTriangle) * n > RDRAMSize)
{
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_ERROR | DEBUG_TRIANGLE, "// Attempting to load triangles from invalid address\n" );
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, "gSPDMATriangles( 0x%08X, %i );\n" );
#endif
return;
}
auto triangles = (DKRTriangle*)&RDRAM[address];
for (u32 i = 0; i < n; i++)
{
gSP.geometryMode &= ~G_CULL_BOTH;
if (!(triangles->flag & 0x40))
{
if (gSP.viewport.vscale[0] > 0)
gSP.geometryMode |= G_CULL_BACK;
else
gSP.geometryMode |= G_CULL_FRONT;
}
gSP.changed |= CHANGED_GEOMETRYMODE;
gSP.vertices[triangles->v0].s = _FIXED2FLOAT(triangles->s0, 5);
gSP.vertices[triangles->v0].t = _FIXED2FLOAT(triangles->t0, 5);
gSP.vertices[triangles->v1].s = _FIXED2FLOAT(triangles->s1, 5);
gSP.vertices[triangles->v1].t = _FIXED2FLOAT(triangles->t1, 5);
gSP.vertices[triangles->v2].s = _FIXED2FLOAT(triangles->s2, 5);
gSP.vertices[triangles->v2].t = _FIXED2FLOAT(triangles->t2, 5);
gSPTriangle(triangles->v0, triangles->v1, triangles->v2, 0);
triangles++;
}
gSPFlushTriangles();
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, "gSPDMATriangles( 0x%08X, %i );\n",
tris, n );
#endif
}
void gSP1Quadrangle(s32 v0, s32 v1, s32 v2, s32 v3)
{
gSPTriangle(v0, v1, v2, 0);
gSPTriangle(v0, v2, v3, 0);
gSPFlushTriangles();
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED | DEBUG_TRIANGLE, "gSP1Quadrangle( %i, %i, %i, %i );\n",
v0, v1, v2, v3 );
#endif
}
bool gSPCullVertices(u32 v0, u32 vn)
{
float xClip, yClip, zClip;
xClip = yClip = zClip = 0.0f;
for (int i = v0; i <= vn; i++)
{
if (gSP.vertices[i].xClip == 0.0f)
return FALSE;
else if (gSP.vertices[i].xClip < 0.0f)
{
if (xClip > 0.0f)
return FALSE;
else
xClip = gSP.vertices[i].xClip;
}