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https://github.com/holub/mame
synced 2025-05-22 21:58:57 +03:00
cobra.c: Improved polygon parsing (nw)
This commit is contained in:
Ville Linde
parent
9d515af147
commit
5a1ad2f535
@ -173,18 +173,26 @@
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0x00114: High word: framebuffer pitch? Low word: framebuffer pixel size?
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0x00114: High word: framebuffer pitch? Low word: framebuffer pixel size?
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0x00118: High word: FB pixel read X pos, Low word: FB pixel read Y pos
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0x00118: High word: FB pixel read X pos, Low word: FB pixel read Y pos
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0x0011c: Same as above?
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0x0011c: Same as above?
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0x00458: Set to 0x02100000 (0xff) by texselect()
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0x40018: Set to 0x0001040a by mode_stipple()
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0x40018: Set to 0x0001040a (0xc0) by mode_stipple()
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0x400d0: Set to 0x80000000 by mode_stipple()
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0x400d0: Set to 0x80000000 (0x80) by mode_stipple()
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0x40114: Set to 0x00080000 by mode_scissor()
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0x400f4: Set to 0x40000000 (0x80) by texselect()
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0x40138: Set to 0x88800000 by mode_viewclip()
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0x40114: Set to 0x00080000 (0x10) by mode_scissor()
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0x40138: Set to 0x88800000 (0xe0) by mode_viewclip()
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0x40160: Some viewport register? (high word: 192, low word: 150)
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0x40160: Some viewport register? (high word: 192, low word: 150)
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0x40164: Some viewport register? (high word: 352, low word: 275)
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0x40164: Some viewport register? (high word: 352, low word: 275)
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0x40170: Some viewport register? (high word: 160, low word: 125)
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0x40170: Some viewport register? (high word: 160, low word: 125)
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0x40174: Some viewport register? (high word: 320, low word: 250)
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0x40174: Some viewport register? (high word: 320, low word: 250)
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0x40198: Set to 0x80800000 by mode_alphatest()
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0x40198: Set to 0x80800000 (0xa0) by mode_alphatest()
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0x4019c: Set to 0x88000000 by mode_fog()
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0x4019c: Set to 0x88000000 (0xc0) by mode_fog()
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0x80020: Set to 0x00020000 by mode_depthtest()
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0x8001c: Set to 0xc1d60060 (0xfe) by mode_stenciltest()
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0x80020: Set to 0x00020000 (0x10) by mode_depthtest()
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0x80050: Set to 0x04445500 (0x7c) by mode_blend()
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0x80054: Set to 0x02400000 (0xe0) by mode_stencilmod()
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0x80114: (0xcc) by mode_colormask()
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0x80118: (0xcc) by mode_colormask()
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0x8011c: (0xe0) by mode_stencilmask()
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0xc0c00..fff: Texture RAM readback
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0xc0c00..fff: Texture RAM readback
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0xc3020: Start address for texram writes?
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0xc3020: Start address for texram writes?
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0xc3028: Reads address from texram?
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0xc3028: Reads address from texram?
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@ -1634,81 +1642,36 @@ void cobra_renderer::gfx_fifo_exec(running_machine &machine)
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case 0xe2:
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case 0xe2:
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case 0xe3:
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case 0xe3:
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{
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{
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// E0C00004 18C003C0 - 32 params
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// Draw graphics primitives
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// E0C00004 18F803C1 - 48 params
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// E0C00003 18C003C0 - 24 params prm_triangle()
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// E0C00008 18C003C0 - 64 params prm_trianglestrip()
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// E0C00001 58C003C1 - 10 params prm_trianglefan() (start vertex?)
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// E0800004 18C003C0 - 32 params prm_trianglefan()
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// E3000002 58C003C1 - 20 params prm_line()
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// E3000008 58C003C1 - 80 params prm_lines()
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// E3000005 58C003C1 - 50 params prm_linestrip()
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// E2000001 18C003C0 - 8 params prm_point()
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// E2000008 18C003C0 - 64 params prm_points()
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// E0C00003 38C003C1 - 30 params
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// E0C00008 38C003C1 - 80 params
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// E0C00001 78C003C0 - 10 params
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// E0800004 38C003C1 - 40 params
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// E3000002 78C003C0 - 20 params prm_line()
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// E3400002 58C003C1 - 20 params
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// E0C00003 18F803C1 - 36 params
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// E0C00001 58F803C0 - 12 params
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// These seem to be 3d graphics polygon packets...
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// 0x00: xxxx---- -------- -------- -------- Command
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// The low part of the first word could be number of vertices...
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// 0x00: ----xxxx -------- -------- -------- Primitive type (0 = triangle, 2 = point, 3 = line)
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// 0x00: -------- xx------ -------- -------- ?
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// 0x00: -------- -------- -------- xxxxxxxx Number of units (amount of bits is uncertain)
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//
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// 0x01: -x------ -------- -------- -------- Has extra flags word (used by lines only)
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// 0x01: --x----- -------- -------- -------- Has extra unknown float
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// 0x01: ---x---- -------- -------- -------- Always 1?
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// 0x01: -------- xx------ -------- -------- ?
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// 0x01: -------- --x----- -------- -------- Has texture coords
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// 0x01: -------- ---x---- -------- -------- ?
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// 0x01: -------- ----x--- -------- -------- ?
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// 0x01: -------- -------- ------xx xx------ ? (always set to 1s?)
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// 0x01: -------- -------- -------- -------x Has extra unknown float
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int i;
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int i;
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int num = 0;
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int num = 0;
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int units = w1 & 0xff;
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int units = w1 & 0xff;
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int unit_size = 0;
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// determine the expected packet size to see if we can process it yet
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// determine the expected packet size to see if we can process it yet
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if (w2 == 0x18c003c0)
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int unit_size = 8;
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{
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if (w2 & 0x40000000) unit_size += 1; // lines only
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unit_size = 8;
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if (w2 & 0x20000000) unit_size += 1; // unknown float
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num = units * unit_size;
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if (w2 & 0x00200000) unit_size += 3; // texture coords?
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}
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if (w2 & 0x00000001) unit_size += 1; // ?
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else if (w2 == 0x38c003c1 || w2 == 0x58c003c1 || w2 == 0x78c003c0)
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{
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unit_size = 10;
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num = units * unit_size;
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}
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else if (w2 == 0x18f803c1 || w2 == 0x38f803c0 || w2 == 0x58f803c0)
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{
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unit_size = 12;
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num = units * unit_size;
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}
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else if (w2 == 0x78f803c1)
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{
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unit_size = 14;
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num = units * unit_size;
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}
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else
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{
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int c = 0;
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printf("gfxfifo_exec: E0 unhandled %08X %08X\n", w1, w2);
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while (fifo_in->current_num() > 0)
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{
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UINT64 param;
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fifo_in->pop(NULL, ¶m);
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if (c == 0)
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num = unit_size * units;
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printf(" ");
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printf("%08X ", (UINT32)(param));
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c++;
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if (c == 4)
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{
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printf("\n");
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c = 0;
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}
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};
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printf("\n");
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cobra->m_gfx_re_status = RE_STATUS_IDLE;
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return;
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}
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if (fifo_in->current_num() < num)
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if (fifo_in->current_num() < num)
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{
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{
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@ -1718,132 +1681,49 @@ void cobra_renderer::gfx_fifo_exec(running_machine &machine)
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// extract vertex data
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// extract vertex data
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if (w2 == 0x18c003c0)
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{
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for (int i=0; i < units; i++) // in screen coords!
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{
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UINT64 in;
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fifo_in->pop(NULL, &vert[i].x); // X coord
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fifo_in->pop(NULL, &vert[i].y); // Y coord
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fifo_in->pop(NULL, &in); // ? (usually 1.0f)
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fifo_in->pop(NULL, &in); // ? (usually 1.0f)
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fifo_in->pop(NULL, &in); // ? (usually 1.0f)
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fifo_in->pop(NULL, &in); // ? (usually 0.0f)
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fifo_in->pop(NULL, &in); // ? (usually 0.0f)
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fifo_in->pop(NULL, &in); // ? (usually 0.0f)
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}
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}
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else if (w2 == 0x38c003c1)
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{
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for (int i=0; i < units; i++) // 3d coords?
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{
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float x, y;
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UINT64 in;
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &x); // X coord?
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fifo_in->pop(NULL, &y); // Y coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &vert[i].p[0]); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &vert[i].p[1]); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // always 0?
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vert[i].x = 256 + (x / 16);
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vert[i].y = 192 + (y / 16);
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}
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}
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else if (w2 == 0x58c003c1)
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{
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for (int i=0; i < units; i++) // screen coords (used by the boot screen box lines)
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{
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float x, y;
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UINT64 in;
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fifo_in->pop(NULL, &in); // flags?
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fifo_in->pop(NULL, &x); // X coord?
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fifo_in->pop(NULL, &y); // Y coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // always 0?
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vert[i].x = x;
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vert[i].y = y;
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}
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}
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else if (w2 == 0x78c003c0)
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{
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for (int i=0; i < units; i++)
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for (int i=0; i < units; i++)
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{
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{
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UINT64 in;
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UINT64 in;
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fifo_in->pop(NULL, &in); // flags?
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if (w2 & 0x40000000) // line flags
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &vert[i].x); // X coord?
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fifo_in->pop(NULL, &vert[i].y); // Y coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &vert[i].p[0]); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &vert[i].p[1]); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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}
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}
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else if (w2 == 0x18f803c1 || w2 == 0x38f803c0 || w2 == 0x58f803c0)
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{
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{
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for (int i=0; i < units; i++) // in screen coords!
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fifo_in->pop(NULL, &in);
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}
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if (w2 & 0x20000000) // unknown float (0.0f ... 1.0f)
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{
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{
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UINT64 in;
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fifo_in->pop(NULL, &in);
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}
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fifo_in->pop(NULL, &vert[i].x); // X coord
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fifo_in->pop(NULL, &vert[i].x); // X coord
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fifo_in->pop(NULL, &vert[i].y); // Y coord
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fifo_in->pop(NULL, &vert[i].y); // Y coord
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fifo_in->pop(NULL, &in);
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fifo_in->pop(NULL, &in);
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fifo_in->pop(NULL, &in);
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fifo_in->pop(NULL, &vert[i].p[0]); // texture U coord
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fifo_in->pop(NULL, &vert[i].p[1]); // texture V coord
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fifo_in->pop(NULL, &in);
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fifo_in->pop(NULL, &in);
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fifo_in->pop(NULL, &in);
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fifo_in->pop(NULL, &in);
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fifo_in->pop(NULL, &in);
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}
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}
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else if (w2 == 0x78f803c1)
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{
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for (int i=0; i < units; i++) // 3d coords?
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{
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UINT64 in;
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fifo_in->pop(NULL, &in); // flags?
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &vert[i].x); // X coord?
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fifo_in->pop(NULL, &vert[i].y); // Y coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // coord?
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &vert[i].p[0]); // ? (float 0.0f ... 1.0f)
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if (w2 & 0x00200000) // texture coords
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fifo_in->pop(NULL, &vert[i].p[1]); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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}
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}
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else
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{
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{
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fatalerror("gfxfifo_exec: E0 unhandled %08X %08X\n", w1, w2);
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &vert[i].p[0]); // U coord
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fifo_in->pop(NULL, &vert[i].p[1]); // V coord
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}
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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fifo_in->pop(NULL, &in); // ? (float 0.0f ... 1.0f)
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if (w2 & 0x00000001) // unknown float (0.0f ... 1.0f)
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{
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fifo_in->pop(NULL, &in);
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}
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}
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}
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// render
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// render
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switch ((w1 >> 24) & 0xff)
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switch ((w1 >> 24) & 0xf)
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{
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{
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case 0xe0: // triangles
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case 0x0: // triangles
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{
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{
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if (unit_size == 12)
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if (w2 & 0x00200000)
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{
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{
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render_delegate rd = render_delegate(FUNC(cobra_renderer::render_texture_scan), this);
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render_delegate rd = render_delegate(FUNC(cobra_renderer::render_texture_scan), this);
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for (int i=2; i < units; i++)
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for (int i=2; i < units; i++)
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@ -1851,7 +1731,7 @@ void cobra_renderer::gfx_fifo_exec(running_machine &machine)
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render_triangle(visarea, rd, 6, vert[i-2], vert[i-1], vert[i]);
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render_triangle(visarea, rd, 6, vert[i-2], vert[i-1], vert[i]);
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}
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}
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}
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}
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else if (unit_size == 8)
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else
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{
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{
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//render_delegate rd = render_delegate(FUNC(cobra_renderer::render_color_scan), this);
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//render_delegate rd = render_delegate(FUNC(cobra_renderer::render_color_scan), this);
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for (int i=2; i < units; i++)
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for (int i=2; i < units; i++)
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@ -1865,28 +1745,16 @@ void cobra_renderer::gfx_fifo_exec(running_machine &machine)
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break;
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break;
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||||||
}
|
}
|
||||||
|
|
||||||
case 0xe2: // points
|
case 0x2: // points
|
||||||
{
|
|
||||||
if (unit_size == 8)
|
|
||||||
{
|
{
|
||||||
for (int i=0; i < units; i++)
|
for (int i=0; i < units; i++)
|
||||||
{
|
{
|
||||||
draw_point(visarea, vert[i], 0xffffffff);
|
draw_point(visarea, vert[i], 0xffffffff);
|
||||||
}
|
}
|
||||||
}
|
|
||||||
else if (unit_size == 12)
|
|
||||||
{
|
|
||||||
for (int i=0; i < units; i++)
|
|
||||||
{
|
|
||||||
draw_point(visarea, vert[i], 0xffffffff);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
case 0xe3: // lines
|
case 0x3: // lines
|
||||||
{
|
|
||||||
if (unit_size == 10)
|
|
||||||
{
|
{
|
||||||
if ((units & 1) == 0) // batches of lines
|
if ((units & 1) == 0) // batches of lines
|
||||||
{
|
{
|
||||||
@ -1899,7 +1767,6 @@ void cobra_renderer::gfx_fifo_exec(running_machine &machine)
|
|||||||
{
|
{
|
||||||
printf("GFX: linestrip %08X, %08X\n", w1, w2);
|
printf("GFX: linestrip %08X, %08X\n", w1, w2);
|
||||||
}
|
}
|
||||||
}
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user