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Allow the game to interpretate the values

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This commit is contained in:
Angelo Salese 2011-09-06 15:52:26 +00:00
parent b92d532262
commit bf1c10d54c
3 changed files with 51 additions and 12 deletions
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4
src/mame/drivers/taitoair.c
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@ -477,11 +477,11 @@ static ADDRESS_MAP_START( DSP_map_data, AS_DATA, 16 )
AM_RANGE(0x3404, 0x3404) AM_WRITE(dsp_frustum_left_w)
AM_RANGE(0x3405, 0x3405) AM_WRITE(dsp_x_eyecoord_w)
AM_RANGE(0x3406, 0x3406) AM_WRITE(dsp_z_eyecoord_w)
// AM_RANGE(0x3407, 0x3407) AM_READ(?)
AM_RANGE(0x3407, 0x3407) AM_READ(dsp_x_return_r)
AM_RANGE(0x3408, 0x3408) AM_WRITE(dsp_frustum_bottom_w)
AM_RANGE(0x3409, 0x3409) AM_WRITE(dsp_y_eyecoord_w)
AM_RANGE(0x340a, 0x340a) AM_WRITE(dsp_rasterize_w) /* Just a (lame) guess */
// AM_RANGE(0x340b, 0x340b) AM_READ(dsp_projection_y_r)
AM_RANGE(0x340b, 0x340b) AM_READ(dsp_y_return_r)
// AM_RANGE(0x3418, 0x341a) AM_WRITE(dsp_sqrt_w)
// AM_RANGE(0x341b, 0x341b) AM_WRITE(dsp_sqrt_r)
// AM_RANGE(0x341c, 0x341c) AM_READ(dsp_sqrt_flags1_r)

5
src/mame/includes/taitoair.h
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@ -51,7 +51,7 @@ public:
INT16 m_frustumBottom;
INT16 m_eyecoordBuffer[4]; /* homogeneous */
bitmap_t *m_buffer3d;
//bitmap_t *m_buffer3d;
};
@ -67,3 +67,6 @@ WRITE16_HANDLER( dsp_z_eyecoord_w );
WRITE16_HANDLER( dsp_rasterize_w );
WRITE16_HANDLER( dsp_frustum_left_w );
WRITE16_HANDLER( dsp_frustum_bottom_w );
READ16_HANDLER( dsp_x_return_r );
READ16_HANDLER( dsp_y_return_r );

54
src/mame/video/taitoair.c
View File

@ -518,6 +518,31 @@ WRITE16_HANDLER( dsp_rasterize_w )
{
/* Does the pixel projection */
/* Presumably called when the eye coordinates are all loaded up in their x,y,z buffer */
#if 0
taitoair_state *state = space->machine().driver_data<taitoair_state>();
/* Construct a frustum from the system's most recently set left and bottom extents */
float m[16];
airInfernoFrustum(state->m_frustumLeft, state->m_frustumBottom, m);
int result[2];
projectEyeCoordToScreen(m,
32*16, /* These are defined in the machine ctor */
28*16, /* not sure how to get them here or if they're even correct */
state->m_eyecoordBuffer,
result);
#endif
/* Do not splat invalid results */
//if (result[0] == -1 && result[1] == -1)
// return;
/* Splat a (any) non-translucent color */
//*BITMAP_ADDR16(state->m_buffer3d, result[1], result[0]) = 1;
}
READ16_HANDLER( dsp_x_return_r )
{
taitoair_state *state = space->machine().driver_data<taitoair_state>();
/* Construct a frustum from the system's most recently set left and bottom extents */
@ -531,15 +556,26 @@ WRITE16_HANDLER( dsp_rasterize_w )
state->m_eyecoordBuffer,
result);
/* Do not splat invalid results */
if (result[0] == -1 && result[1] == -1)
return;
/* Splat a (any) non-translucent color */
*BITMAP_ADDR16(state->m_buffer3d, result[1], result[0]) = 1;
return result[0];
}
READ16_HANDLER( dsp_y_return_r )
{
taitoair_state *state = space->machine().driver_data<taitoair_state>();
/* Construct a frustum from the system's most recently set left and bottom extents */
float m[16];
airInfernoFrustum(state->m_frustumLeft, state->m_frustumBottom, m);
int result[2];
projectEyeCoordToScreen(m,
32*16, /* These are defined in the machine ctor */
28*16, /* not sure how to get them here or if they're even correct */
state->m_eyecoordBuffer,
result);
return result[1];
}
VIDEO_START( taitoair )
{
@ -550,7 +586,7 @@ VIDEO_START( taitoair )
height = machine.primary_screen->height();
state->m_framebuffer[0] = auto_bitmap_alloc(machine, width, height, BITMAP_FORMAT_INDEXED16);
state->m_framebuffer[1] = auto_bitmap_alloc(machine, width, height, BITMAP_FORMAT_INDEXED16);
state->m_buffer3d = auto_bitmap_alloc(machine, width, height, BITMAP_FORMAT_INDEXED16);
//state->m_buffer3d = auto_bitmap_alloc(machine, width, height, BITMAP_FORMAT_INDEXED16);
}
SCREEN_UPDATE( taitoair )
@ -603,8 +639,8 @@ SCREEN_UPDATE( taitoair )
tc0080vco_tilemap_draw(state->m_tc0080vco, bitmap, cliprect, 2, 0, 0);
/* Hacky 3d bitmap */
copybitmap_trans(bitmap, state->m_buffer3d, 0, 0, 0, 0, cliprect, 0);
bitmap_fill(state->m_buffer3d, cliprect, 0);
//copybitmap_trans(bitmap, state->m_buffer3d, 0, 0, 0, 0, cliprect, 0);
//bitmap_fill(state->m_buffer3d, cliprect, 0);
return 0;
}