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model2.cpp: apply focus in a specific function, one liners ftw (nw)

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This commit is contained in:
angelosa 2018-03-08 21:05:45 +01:00
parent d1e647f8eb
commit 214e0d3bdf
1 changed files with 59 additions and 73 deletions
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102
src/mame/video/model2.cpp
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@ -131,6 +131,28 @@ struct raster_state
uint8_t log_ram[0x40000]; /* Log RAM pointer */ uint8_t log_ram[0x40000]; /* Log RAM pointer */
}; };
/*******************************************
*
* Geometry Engine Internal State
*
*******************************************/
struct geo_state
{
raster_state * raster;
uint32_t mode; /* bit 0 = Enable Specular, bit 1 = Calculate Normals */
uint32_t * polygon_rom; /* Polygon ROM pointer */
uint32_t polygon_rom_mask; /* Polygon ROM mask */
float matrix[12]; /* Current Transformation Matrix */
poly_vertex focus; /* Focus (x,y) */
poly_vertex light; /* Light Vector */
float lod; /* LOD */
float coef_table[32]; /* Distane Coefficient table */
texture_parameter texture_parameters[32]; /* Texture parameters */
uint32_t polygon_ram0[0x8000]; /* Fast Polygon RAM pointer */
uint32_t polygon_ram1[0x8000]; /* Slow Polygon RAM pointer */
model2_state *state;
};
/******************************************* /*******************************************
@ -191,6 +213,12 @@ static inline void vector_cross3( poly_vertex *dst, poly_vertex *v0, poly_vertex
dst->pz = (p1.x * p2.y) - (p1.y * p2.x); dst->pz = (p1.x * p2.y) - (p1.y * p2.x);
} }
static inline void apply_focus( geo_state *geo, poly_vertex *p0)
{
p0->x *= geo->focus.x;
p0->y *= geo->focus.y;
}
/* 1.8.23 float to 4.12 float converter, courtesy of Aaron Giles */ /* 1.8.23 float to 4.12 float converter, courtesy of Aaron Giles */
inline uint16_t model2_state::float_to_zval( float floatval ) inline uint16_t model2_state::float_to_zval( float floatval )
{ {
@ -1160,32 +1188,6 @@ void model2_state::model2_3d_push( raster_state *raster, uint32_t input )
/***********************************************************************************************/ /***********************************************************************************************/
/*******************************************
*
* Geometry Engine Internal State
*
*******************************************/
struct geo_state
{
raster_state * raster;
uint32_t mode; /* bit 0 = Enable Specular, bit 1 = Calculate Normals */
uint32_t * polygon_rom; /* Polygon ROM pointer */
uint32_t polygon_rom_mask; /* Polygon ROM mask */
float matrix[12]; /* Current Transformation Matrix */
poly_vertex focus; /* Focus (x,y) */
poly_vertex light; /* Light Vector */
float lod; /* LOD */
float coef_table[32]; /* Distane Coefficient table */
texture_parameter texture_parameters[32]; /* Texture parameters */
uint32_t polygon_ram0[0x8000]; /* Fast Polygon RAM pointer */
uint32_t polygon_ram1[0x8000]; /* Slow Polygon RAM pointer */
model2_state *state;
};
/******************************************* /*******************************************
* *
* Geometry Engine Initialization * Geometry Engine Initialization
@ -1231,8 +1233,7 @@ void model2_state::geo_parse_np_ns( geo_state *geo, uint32_t *input, uint32_t co
transform_point( &point, geo->matrix ); transform_point( &point, geo->matrix );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push it to the 3d rasterizer */ /* push it to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1248,8 +1249,7 @@ void model2_state::geo_parse_np_ns( geo_state *geo, uint32_t *input, uint32_t co
transform_point( &point, geo->matrix ); transform_point( &point, geo->matrix );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push it to the 3d rasterizer */ /* push it to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1295,8 +1295,7 @@ void model2_state::geo_parse_np_ns( geo_state *geo, uint32_t *input, uint32_t co
dotp = dot_product( &normal, &point ); dotp = dot_product( &normal, &point );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* determine whether this is the front or the back of the polygon */ /* determine whether this is the front or the back of the polygon */
face = 0x100; /* rear */ face = 0x100; /* rear */
@ -1343,8 +1342,7 @@ void model2_state::geo_parse_np_ns( geo_state *geo, uint32_t *input, uint32_t co
transform_point( &point, geo->matrix ); transform_point( &point, geo->matrix );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push to the 3d rasterizer */ /* push to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1383,8 +1381,7 @@ void model2_state::geo_parse_np_s( geo_state *geo, uint32_t *input, uint32_t cou
transform_point( &point, geo->matrix ); transform_point( &point, geo->matrix );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push it to the 3d rasterizer */ /* push it to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1400,8 +1397,7 @@ void model2_state::geo_parse_np_s( geo_state *geo, uint32_t *input, uint32_t cou
transform_point( &point, geo->matrix ); transform_point( &point, geo->matrix );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push it to the 3d rasterizer */ /* push it to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1447,8 +1443,7 @@ void model2_state::geo_parse_np_s( geo_state *geo, uint32_t *input, uint32_t cou
dotp = dot_product( &normal, &point ); dotp = dot_product( &normal, &point );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* determine whether this is the front or the back of the polygon */ /* determine whether this is the front or the back of the polygon */
face = 0x100; /* rear */ face = 0x100; /* rear */
@ -1504,8 +1499,7 @@ void model2_state::geo_parse_np_s( geo_state *geo, uint32_t *input, uint32_t cou
transform_point( &point, geo->matrix ); transform_point( &point, geo->matrix );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push to the 3d rasterizer */ /* push to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1547,8 +1541,7 @@ void model2_state::geo_parse_nn_ns( geo_state *geo, uint32_t *input, uint32_t co
p0.x = point.x; p0.y = point.y; p0.pz = point.pz; p0.x = point.x; p0.y = point.y; p0.pz = point.pz;
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push it to the 3d rasterizer */ /* push it to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1567,8 +1560,7 @@ void model2_state::geo_parse_nn_ns( geo_state *geo, uint32_t *input, uint32_t co
p1.x = point.x; p1.y = point.y; p1.pz = point.pz; p1.x = point.x; p1.y = point.y; p1.pz = point.pz;
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push it to the 3d rasterizer */ /* push it to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1618,8 +1610,7 @@ void model2_state::geo_parse_nn_ns( geo_state *geo, uint32_t *input, uint32_t co
dotp = dot_product( &normal, &point ); dotp = dot_product( &normal, &point );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* determine whether this is the front or the back of the polygon */ /* determine whether this is the front or the back of the polygon */
face = 0x100; /* rear */ face = 0x100; /* rear */
@ -1669,8 +1660,7 @@ void model2_state::geo_parse_nn_ns( geo_state *geo, uint32_t *input, uint32_t co
p3.x = point.x; p3.y = point.y; p3.pz = point.pz; p3.x = point.x; p3.y = point.y; p3.pz = point.pz;
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push to the 3d rasterizer */ /* push to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1742,8 +1732,7 @@ void model2_state::geo_parse_nn_s( geo_state *geo, uint32_t *input, uint32_t cou
p0.x = point.x; p0.y = point.y; p0.pz = point.pz; p0.x = point.x; p0.y = point.y; p0.pz = point.pz;
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push it to the 3d rasterizer */ /* push it to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1762,8 +1751,7 @@ void model2_state::geo_parse_nn_s( geo_state *geo, uint32_t *input, uint32_t cou
p1.x = point.x; p1.y = point.y; p1.pz = point.pz; p1.x = point.x; p1.y = point.y; p1.pz = point.pz;
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push it to the 3d rasterizer */ /* push it to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );
@ -1813,8 +1801,7 @@ void model2_state::geo_parse_nn_s( geo_state *geo, uint32_t *input, uint32_t cou
dotp = dot_product( &normal, &point ); dotp = dot_product( &normal, &point );
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* determine whether this is the front or the back of the polygon */ /* determine whether this is the front or the back of the polygon */
face = 0x100; /* rear */ face = 0x100; /* rear */
@ -1873,8 +1860,7 @@ void model2_state::geo_parse_nn_s( geo_state *geo, uint32_t *input, uint32_t cou
p3.x = point.x; p3.y = point.y; p3.pz = point.pz; p3.x = point.x; p3.y = point.y; p3.pz = point.pz;
/* apply focus */ /* apply focus */
point.x *= geo->focus.x; apply_focus( geo, &point );
point.y *= geo->focus.y;
/* push to the 3d rasterizer */ /* push to the 3d rasterizer */
model2_3d_push( raster, f2u(point.x) >> 8 ); model2_3d_push( raster, f2u(point.x) >> 8 );