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chihiro.cpp: improve support for fixed function pipeline (nw)

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This commit is contained in:
yz70s 2015-12-30 18:17:12 +01:00
parent d62bd1baee
commit 9a9a89c716
2 changed files with 28 additions and 9 deletions
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6
src/mame/includes/chihiro.h
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@ -650,9 +650,9 @@ public:
bool logical_operation_enabled;
NV2A_LOGIC_OP logical_operation;
struct {
float modelview[16];
float modelview_inverse[16];
float projection[16];
float modelview[4][4];
float modelview_inverse[4][4];
float projection[4][4];
float translate[4];
float scale[4];
} matrix;

31
src/mame/video/chihiro.cpp
View File

@ -2298,6 +2298,7 @@ void nv2a_renderer::convert_vertices_poly(vertex_nv *source, vertex_t *destinati
{
vertex_nv vert[4];
int m, u;
float t[4],v[4];
// take each vertex with its attributes and obtain data for drawing
// should use either the vertex program or transformation matrices
@ -2305,15 +2306,33 @@ void nv2a_renderer::convert_vertices_poly(vertex_nv *source, vertex_t *destinati
// transformation matrices
// it is not implemented, so we pretend its always using screen coordinates
for (m = 0; m < count; m++) {
destination[m].x = source[m].attribute[0].fv[0];
destination[m].y = source[m].attribute[0].fv[1];
for (int i = 0; i < 4; i++) {
t[i] = 0;
for (int j = 0; j < 4; j++)
t[i] += matrix.modelview[i][j] * source[m].attribute[0].fv[j];
};
for (int i = 0; i < 4; i++) {
v[i] = 0;
for (int j = 0; j < 4; j++)
v[i] += matrix.projection[i][j] * t[j];
};
/*
for (int i = 0; i < 4; i++) {
v[i] *= matrix.scale[i];
}
for (int i = 0; i < 4; i++) {
v[i] += matrix.translate[i];
}
*/
destination[m].x = v[0] / v[3]; // source[m].attribute[0].fv[0];
destination[m].y = v[1] / v[3]; // source[m].attribute[0].fv[1];
for (u = (int)VERTEX_PARAMETER::PARAM_COLOR_B; u <= (int)VERTEX_PARAMETER::PARAM_COLOR_A; u++) // 0=b 1=g 2=r 3=a
destination[m].p[u] = source[m].attribute[3].fv[u];
for (u = 0; u < 4; u++) {
destination[m].p[(int)VERTEX_PARAMETER::PARAM_TEXTURE0_U + u * 2] = source[m].attribute[9 + u].fv[0];
destination[m].p[(int)VERTEX_PARAMETER::PARAM_TEXTURE0_V + u * 2] = source[m].attribute[9 + u].fv[1];
}
destination[m].p[(int)VERTEX_PARAMETER::PARAM_Z] = 0xffffff;
destination[m].p[(int)VERTEX_PARAMETER::PARAM_Z] = v[2] / v[3];
}
}
else {
@ -3314,19 +3333,19 @@ int nv2a_renderer::geforce_exec_method(address_space & space, UINT32 chanel, UIN
// modelview matrix
if ((maddress >= 0x0480) && (maddress < 0x04c0)) {
maddress = (maddress - 0x0480) / 4;
*(UINT32 *)(&matrix.modelview[maddress]) = data;
*(UINT32 *)(&matrix.modelview[maddress >> 2][maddress & 3]) = data;
countlen--;
}
// inverse modelview matrix
if ((maddress >= 0x0580) && (maddress < 0x05c0)) {
maddress = (maddress - 0x0580) / 4;
*(UINT32 *)(&matrix.modelview_inverse[maddress]) = data;
*(UINT32 *)(&matrix.modelview_inverse[maddress >> 2][maddress & 3]) = data;
countlen--;
}
// projection matrix
if ((maddress >= 0x0680) && (maddress < 0x06c0)) {
maddress = (maddress - 0x0680) / 4;
*(UINT32 *)(&matrix.projection[maddress]) = data;
*(UINT32 *)(&matrix.projection[maddress >> 2][maddress & 3]) = data;
countlen--;
}
// viewport translate