Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-20 04:39:11 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

hng64 : Hooked up a potential tilemap enable bit.

Browse Source 
Patched out a segfault caused by a poorly-drawn triangle in bbust2.  [Andrew Gardner]
This commit is contained in:
Andrew Gardner 2010-01-19 05:35:07 +00:00
parent 81e85ffd7a
commit 7542f6019c
1 changed files with 37 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
src/mame/video/hng64.c
View File

@ -1109,6 +1109,9 @@ static void hng64_drawtilemap(running_machine* machine, bitmap_t *bitmap, const
}
}
// xrally's pink tilemaps make me think this is a tilemap enable bit.
if (!(tileregs & 0x0040)) return;
// set the transmask so our manual copy is correct
if (tileregs & 0x0400)
transmask = 0xff;
@ -1918,16 +1921,6 @@ void recoverPolygonBlock(running_machine* machine, const UINT16* packet, struct
return;
}
// Debug - ajg
/*
printf("%08x : ", threeDOffset*3*2);
for (k = 0; k < 7*3; k++)
{
printf("%04x ", threeDPointer[k]);
if ((k % 3) == 2) printf(" ");
}
printf("\n");
*/
//////////////////////////////////////
// THE OBJECT TRANSFORMATION MATRIX //
@ -1981,6 +1974,24 @@ void recoverPolygonBlock(running_machine* machine, const UINT16* packet, struct
// [20] - ???? always 0 ????
//////////////////////////////////////////////*/
// Debug - ajg
//UINT32 tdColor = 0xff000000;
//if (packet[1] & 0x1000) tdColor |= 0x00ff0000;
//if (packet[1] & 0x2000) tdColor |= 0x0000ff00;
//if (packet[1] & 0x4000) tdColor |= 0x000000ff;
//if (packet[1] & 0x8000) tdColor |= 0xffffffff;
/*
// Debug - ajg
printf("%08x : ", threeDOffset*3*2);
for (k = 0; k < 7*3; k++)
{
printf("%04x ", threeDPointer[k]);
if ((k % 3) == 2) printf(" ");
}
printf("\n");
*/
// There are 4 hunks per address.
address[0] = threeDPointer[0];
address[1] = threeDPointer[1];
@ -2002,13 +2013,13 @@ void recoverPolygonBlock(running_machine* machine, const UINT16* packet, struct
/* ???? [13]; Used. */
/* ???? [14]; Used. */
/* ???? [15]; Used? */
/* ???? [16]; Used? */
/* ???? [17]; Used? */
if (threeDPointer[15] != 0x0000) printf("ZOMG! 3dPointer[15] is non-zero!\n");
if (threeDPointer[16] != 0x0000) printf("ZOMG! 3dPointer[16] is non-zero!\n");
if (threeDPointer[17] != 0x0000) printf("ZOMG! 3dPointer[17] is non-zero!\n");
/* ???? [18]; Used? */
/* ???? [19]; Used? */
/* ???? [20]; Used? */
if (threeDPointer[18] != 0x0000) printf("ZOMG! 3dPointer[18] is non-zero!\n");
if (threeDPointer[19] != 0x0000) printf("ZOMG! 3dPointer[19] is non-zero!\n");
if (threeDPointer[20] != 0x0000) printf("ZOMG! 3dPointer[20] is non-zero!\n");
/* Concatenate the megaOffset with the addresses */
address[0] |= (megaOffset << 16);
@ -2048,11 +2059,11 @@ void recoverPolygonBlock(running_machine* machine, const UINT16* packet, struct
}
// Debug - Colors polygons with certain flags bright blue! ajg
//if (chunkOffset[2] & 0x00f0)
// polys[*numPolys].debugColor = 0xff0000ff;
polys[*numPolys].debugColor = 0;
//polys[*numPolys].debugColor = tdColor;
// Debug - ajg
//printf("%d (%08x) : %04x %04x %04x ", k, address[k]*3*2, chunkOffset[0], chunkOffset[1], chunkOffset[2]);
//printf("%d (%08x) : %04x %04x %04x\n", k, address[k]*3*2, chunkOffset[0], chunkOffset[1], chunkOffset[2]);
//break;
// TEXTURE
@ -2400,9 +2411,12 @@ void hng64_command3d(running_machine* machine, const UINT16* packet)
case 0x0100: // Geometry
case 0x0101: // Similar to 0x0100, but throws a strange packet in every now and again.
//printPacket(packet, 1);
recoverPolygonBlock(machine, packet, polys, &numPolys);
// HACK. Masks out a piece of geo bbust2's drawShaded() crashes on.
if (packet[2] == 0x0003 && packet[3] == 0x8f37 && hng64_mcu_type == SHOOT_MCU)
break;
/* Immeditately rasterize the chunk's polygons into the display buffer */
for (i = 0; i < numPolys; i++)
{
@ -2417,6 +2431,7 @@ void hng64_command3d(running_machine* machine, const UINT16* packet)
break;
case 0x0102: // Geometry of a different type - sams games.
//printPacket(packet, 1);
break;
case 0x1000: // Unknown: Some sort of global flags?
@ -2827,10 +2842,10 @@ INLINE void FillSmoothTexPCHorizontalLine(running_machine *machine,
float* db = &(depthBuffer3d[(y * video_screen_get_visible_area(machine->primary_screen)->max_x) + x_start]);
UINT32* cb = &(colorBuffer3d[(y * video_screen_get_visible_area(machine->primary_screen)->max_x) + x_start]);
const UINT8 *gfx = memory_region(machine, "textures");
const UINT8 *textureOffset;
UINT8 paletteEntry = 0;
float t_coord, s_coord;
const UINT8 *textureOffset;
const UINT8 *gfx = memory_region(machine, "textures");
if (texIndex >= 0)
textureOffset = &gfx[texIndex * 1024 * 1024];