mirror of
https://github.com/holub/mame
synced 2025-05-30 17:41:47 +03:00
(not whatsnew worthy)
Further refactoring of the hng64 3d code in preparation for FIFO 3d system.
This commit is contained in:
Andrew Gardner
parent
40bcc29e8a
commit
9f1254ed51
@ -63,7 +63,9 @@ struct polygon
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static float* depthBuffer3d;
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static UINT32* colorBuffer3d;
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static struct polygon *polys;
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static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect);
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static void draw3d(running_machine *machine);
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static UINT32 numPolys = 0; // lame
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@ -390,8 +392,8 @@ static void draw_sprites(running_machine *machine, bitmap_t *bitmap, const recta
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// if (((source[2] & 0xffff0000) >> 16) == 0x0001)
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// {
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// usrintf_showmessage("T %.8x %.8x %.8x %.8x %.8x", source[0], source[1], source[2], source[3], source[4]);
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// // usrintf_showmessage("T %.8x %.8x %.8x %.8x %.8x", source[0], source[1], source[2], source[3], source[4]);
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// popmessage("T %.8x %.8x %.8x %.8x %.8x", source[0], source[1], source[2], source[3], source[4]);
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// // popmessage("T %.8x %.8x %.8x %.8x %.8x", source[0], source[1], source[2], source[3], source[4]);
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// }
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for(ydrw=0;ydrw<=chainy;ydrw++)
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@ -1521,7 +1523,7 @@ VIDEO_UPDATE( hng64 )
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if (hng64_mcu_type != RACING_MCU) // disable on racing games until it stops crashing MAME!
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{
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int x, y;
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draw3d(screen->machine, bitmap, cliprect);
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draw3d(screen->machine);
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// Blit the color buffer into the primary bitmap
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for (y = cliprect->min_y; y <= cliprect->max_y; y++)
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@ -1622,6 +1624,9 @@ VIDEO_UPDATE( hng64 )
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popmessage("blend changed %02x", additive_tilemap_debug);
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}
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// Reset part of the global 3d state (lame)
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numPolys = 0;
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return 0;
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}
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@ -1679,7 +1684,11 @@ VIDEO_START( hng64 )
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///////////////
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UINT32 hng64_dls[2][0x81];
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static float uToF(UINT16 input);
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// 3d State
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static int paletteState3d = 0x00;
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static float projectionMatrix[16];
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static float modelViewMatrix[16];
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static float cameraMatrix[16];
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static void setIdentity(float *matrix);
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static void matmul4(float *product, const float *a, const float *b);
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@ -1688,103 +1697,67 @@ static void vecmatmul4(float *product, const float *a, const float *b);
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//static void normalize(float* x);
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static void performFrustumClip(struct polygon *p);
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static void drawShaded(running_machine *machine, struct polygon *p, bitmap_t *bitmap);
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static void drawShaded(running_machine *machine, struct polygon *p);
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//static void plot(INT32 x, INT32 y, INT32 color, bitmap_t *bitmap);
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//static void drawline2d(INT32 x0, INT32 y0, INT32 x1, INT32 y1, INT32 color, bitmap_t *bitmap);
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//static void DrawWireframe(struct polygon *p, bitmap_t *bitmap);
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static float uToF(UINT16 input);
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#define WORD_AT(BUFFER,OFFSET) ( (BUFFER[OFFSET] << 8) | BUFFER[OFFSET+1] )
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/* 3D/framebuffer video registers
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* ------------------------------
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*
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* UINT32 | Bits | Use
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* | 3322 2222 2222 1111 1111 11 |
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* -------+-1098-7654-3210-9876-5432-1098-7654-3210-+----------------
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* 0 | ???? ???? ???? ???? ccc? ???? ???? ???? | framebuffer color base, 0x311800 in Fatal Fury WA, 0x313800 in Buriki One
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* 1 | |
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* 2 | ???? ???? ???? ???? ???? ???? ???? ???? | camera / framebuffer global x/y? Actively used by Samurai Shodown 64 2
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* 3 | ---- --?x ---- ---- ---- ---- ---- ---- | unknown, unsetted by Buriki One and setted by Fatal Fury WA, buffering mode?
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* 4-11 | ---- ???? ---- ???? ---- ???? ---- ???? | Table filled with 0x0? data
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*
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*/
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static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect )
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// Operation 0001
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static void setCameraTransformation(const UINT16* packet)
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{
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int i,j,k,l,m;
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// CAMERA TRANSFORMATION MATRIX
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cameraMatrix[0] = uToF(packet[1]);
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cameraMatrix[4] = uToF(packet[2]);
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cameraMatrix[8] = uToF(packet[3]);
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cameraMatrix[3] = 0.0f;
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float projectionMatrix[16];
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float modelViewMatrix[16];
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float cameraMatrix[16];
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float objectMatrix[16];
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cameraMatrix[1] = uToF(packet[4]);
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cameraMatrix[5] = uToF(packet[5]);
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cameraMatrix[9] = uToF(packet[6]);
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cameraMatrix[7] = 0.0f;
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int paletteState = 0x00;
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cameraMatrix[2] = uToF(packet[7]);
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cameraMatrix[6] = uToF(packet[8]);
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cameraMatrix[10] = uToF(packet[9]);
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cameraMatrix[11] = 0.0f;
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UINT32 numPolys = 0;
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cameraMatrix[12] = uToF(packet[10]);
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cameraMatrix[13] = uToF(packet[11]);
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cameraMatrix[14] = uToF(packet[12]);
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cameraMatrix[15] = 1.0f;
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}
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struct polygon lastPoly = { 0 };
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const rectangle *visarea = video_screen_get_visible_area(machine->primary_screen);
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// Set some matrices to the identity...
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setIdentity(projectionMatrix);
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setIdentity(modelViewMatrix);
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setIdentity(cameraMatrix);
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setIdentity(objectMatrix);
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// Display list 2 comes after display list 1. Go figure.
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for (j = 1; j >= 0; j--)
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// Operation 0011
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static void set3dFlags(const UINT16* packet)
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{
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UINT32 *workingList = hng64_dls[j];
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// All flags?
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// 00110000 00000000 00000100 01000100 0400-0000 00007fff 00000000 00000020
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// ---- pal ---- -------- -------- -------- not used (known)
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paletteState3d = (packet[8] & 0xff00) >> 8;
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paletteState3d += ((hng64_3dregs[0x00/4] & 0x2000) >> 9); //framebuffer base color reg? Used by Buriki One
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/* FIXME: Buriki One door colors in attract mode still aren't quite right, investigate... */
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}
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for (i = 0; i < 0x80; i += 0x08)
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// Operation 0012
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static void setCameraProjectionMatrix(const UINT16* packet)
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{
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float left, right, top, bottom, near_, far_;
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UINT8 *threeDRoms;
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UINT8 *threeDPointer;
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UINT32 threeDOffset;
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UINT32 size[4];
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UINT32 address[4];
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UINT32 megaOffset;
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float eyeCoords[4]; // objectCoords transformed by the modelViewMatrix
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// float clipCoords[4]; // eyeCoords transformed by the projectionMatrix
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float ndCoords[4]; // normalized device coordinates/clipCoordinates (x/w, y/w, z/w)
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float windowCoords[4]; // mapped ndCoordinates to screen space
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float cullRay[4];
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// Seems an awful lot parameters for a projection matrix, but it's good so far.
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// Debug...
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// mame_printf_debug("Element %.2d (%d) : %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n", i/0x08, j,
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// (UINT32)hng64_dls[j][i+0], (UINT32)hng64_dls[j][i+1],
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// (UINT32)hng64_dls[j][i+2], (UINT32)hng64_dls[j][i+3],
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// (UINT32)hng64_dls[j][i+4], (UINT32)hng64_dls[j][i+5],
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// (UINT32)hng64_dls[j][i+6], (UINT32)hng64_dls[j][i+7]);
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// Depending on what the initial flags are, do sumthin'...
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switch((workingList[i+0] & 0xffff0000) >> 16)
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{
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case 0x0012:
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// UNKNOWN - seems an awful lot parameters for a projection matrix though...
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;
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// It changes when 'How to play' is on the screen... not too much, but if this is right, the aspect
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// ratio is different...
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// It changes when fatfurwa 'How to play' is on the screen.
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// Not too much, but if this is right, the aspect ratio is different...
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// Heisted from GLFrustum - 6 parameters...
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left = uToF( workingList[i+5] & 0x0000ffff);
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right = uToF((workingList[i+5] & 0xffff0000) >> 16);
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top = uToF((workingList[i+6] & 0xffff0000) >> 16);
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bottom = uToF( workingList[i+6] & 0x0000ffff);
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near_ = uToF((workingList[i+3] & 0xffff0000) >> 16);
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far_ = uToF( workingList[i+3] & 0x0000ffff);
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float left, right, top, bottom, near_, far_;
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// It's almost .always. these values in fatfurwa...
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// 0.070313 0.000000 [0] (scaled by 128)
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// 0.000000 10.000000 [1]
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// 0.000000 0.500000 [2]
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// 2.000000 11.062500 [3]
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// 10.000000 11.000000 [4]
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// 1.000000 -1.000000 [5]
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// 0.875000 -0.875000 [6]
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// 0.000000 0.000000 [7]
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left = uToF(packet[11]);
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right = uToF(packet[10]);
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top = uToF(packet[12]);
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bottom = uToF(packet[13]);
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near_ = uToF(packet[6]);
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far_ = uToF(packet[7]);
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projectionMatrix[0] = (2.0f*near_)/(right-left);
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projectionMatrix[1] = 0.0f;
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@ -1826,48 +1799,33 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
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uToF((workingList[i+6] & 0xffff0000) >> 16)*128, uToF( workingList[i+6] & 0x0000ffff)*128,
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uToF((workingList[i+7] & 0xffff0000) >> 16)*128, uToF( workingList[i+7] & 0x0000ffff)*128);
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*/
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}
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break;
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// Operation 0100
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void recoverPolygonBlock(running_machine* machine, const UINT16* packet)
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{
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int k, l, m;
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case 0x0001:
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// CAMERA TRANSFORMATION MATRIX
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cameraMatrix[0] = uToF( workingList[i+0] & 0x0000ffff);
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cameraMatrix[4] = uToF((workingList[i+1] & 0xffff0000) >> 16);
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cameraMatrix[8] = uToF( workingList[i+1] & 0x0000ffff);
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cameraMatrix[3] = 0.0f;
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UINT8 *threeDRoms;
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UINT8 *threeDPointer;
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UINT32 dword1;
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UINT32 threeDOffset;
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UINT32 size[4];
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UINT32 address[4];
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UINT32 megaOffset;
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float eyeCoords[4]; // objectCoords transformed by the modelViewMatrix
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// float clipCoords[4]; // eyeCoords transformed by the projectionMatrix
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float ndCoords[4]; // normalized device coordinates/clipCoordinates (x/w, y/w, z/w)
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float windowCoords[4]; // mapped ndCoordinates to screen space
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float cullRay[4];
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cameraMatrix[1] = uToF((workingList[i+2] & 0xffff0000) >> 16);
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cameraMatrix[5] = uToF( workingList[i+2] & 0x0000ffff);
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cameraMatrix[9] = uToF((workingList[i+3] & 0xffff0000) >> 16);
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cameraMatrix[7] = 0.0f;
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float objectMatrix[16];
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struct polygon lastPoly = { 0 };
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cameraMatrix[2] = uToF( workingList[i+3] & 0x0000ffff);
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cameraMatrix[6] = uToF((workingList[i+4] & 0xffff0000) >> 16);
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cameraMatrix[10] = uToF( workingList[i+4] & 0x0000ffff);
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cameraMatrix[11] = 0.0f;
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const rectangle *visarea = video_screen_get_visible_area(machine->primary_screen);
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cameraMatrix[12] = uToF((workingList[i+5] & 0xffff0000) >> 16);
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cameraMatrix[13] = uToF( workingList[i+5] & 0x0000ffff);
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cameraMatrix[14] = uToF((workingList[i+6] & 0xffff0000) >> 16);
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cameraMatrix[15] = 1.0f;
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break;
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case 0x0010:
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// UNKNOWN - light maybe
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break;
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case 0x0011:
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// Model Flags?
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// 00110000 00000000 00000100 01000100 0400-0000 00007fff 00000000 00000020
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// ---- pal ---- -------- -------- -------- not used (known)
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paletteState = (workingList[i+4] & 0xff000000) >> 24;
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paletteState+=((hng64_3dregs[0x00/4] & 0x2000) >> 9); //framebuffer base color reg? Used by Buriki One
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/* FIXME: Buriki One door colors in attract mode still aren't quite right, investigate... */
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break;
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case 0x0100:
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// GEOMETRY
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;
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setIdentity(objectMatrix);
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threeDRoms = memory_region(machine, "verts");
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@ -1876,45 +1834,42 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
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/////////////////////////
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// 3d ROM Offset
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// !!! This might be more than just 20 bits...
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threeDOffset = workingList[i+1] & 0x000fffff;
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// FIXME: This might be more than just 20 bits...
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dword1 = (((UINT32)packet[2]) << 16) | ((UINT32)packet[3]);
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threeDOffset = dword1 & 0x000fffff;
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threeDOffset = (threeDOffset << 1) * 3;
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threeDPointer = &threeDRoms[threeDOffset];
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// 66 byte versus 48 byte chunk flag
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// WRONG ! I think it's something to do with lighting...
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// it's 0 for the 66-byte lit globe in the character select and 0 for something in terry's hand...
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// if (workingList[i+0] & 0x00000010)
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// I think this packet entry has something to do with lighting.
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// It's 0 for the 66-byte lit globe in the character select and 0 for something in terry's hand.
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// if (packet[1] & 0x0010)
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//////////////////////////////////////////
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// GET THE OBJECT TRANSFORMATION MATRIX //
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//////////////////////////////////////////
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objectMatrix[8 ] = uToF( workingList[i+3] & 0x0000ffff);
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objectMatrix[4 ] = uToF((workingList[i+4] & 0xffff0000) >> 16);
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objectMatrix[0 ] = uToF( workingList[i+4] & 0x0000ffff);
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objectMatrix[8 ] = uToF(packet[7]);
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objectMatrix[4 ] = uToF(packet[8]);
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objectMatrix[0 ] = uToF(packet[9]);
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objectMatrix[3] = 0.0f;
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objectMatrix[9 ] = uToF((workingList[i+5] & 0xffff0000) >> 16);
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objectMatrix[5 ] = uToF( workingList[i+5] & 0x0000ffff);
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objectMatrix[1 ] = uToF((workingList[i+6] & 0xffff0000) >> 16);
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objectMatrix[9 ] = uToF(packet[10]);
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objectMatrix[5 ] = uToF(packet[11]);
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objectMatrix[1 ] = uToF(packet[12]);
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objectMatrix[7] = 0.0f;
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objectMatrix[10] = uToF( workingList[i+6] & 0x0000ffff);
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objectMatrix[6 ] = uToF((workingList[i+7] & 0xffff0000) >> 16);
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objectMatrix[2 ] = uToF( workingList[i+7] & 0x0000ffff);
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objectMatrix[10] = uToF(packet[13]);
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objectMatrix[6 ] = uToF(packet[14]);
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objectMatrix[2 ] = uToF(packet[15]);
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objectMatrix[11] = 0.0f;
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objectMatrix[12] = uToF((workingList[i+2] & 0xffff0000) >> 16);
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objectMatrix[13] = uToF( workingList[i+2] & 0x0000ffff);
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objectMatrix[14] = uToF((workingList[i+3] & 0xffff0000) >> 16);
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objectMatrix[12] = uToF(packet[4]);
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objectMatrix[13] = uToF(packet[5]);
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objectMatrix[14] = uToF(packet[6]);
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objectMatrix[15] = 1.0f;
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//////////////////////////////////////////////////////////
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// EXTRACT DATA FROM THE ADDRESS POINTED TO IN THE FILE //
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//////////////////////////////////////////////////////////
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@ -1937,18 +1892,6 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
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// mame_printf_debug("%.5x %.3x %.5x %.3x %.5x %.3x %.5x %.3x\n", address[0], size[0], address[1], size[1], address[2], size[2], address[3], size[3]);
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// !! END DEBUG !!
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////////////////////////////////////
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// A FEW 'GLOBAL' TRANSFORMATIONS //
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////////////////////////////////////
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// Now perform the world transformations...
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// !! Can eliminate this step with a matrix stack (maybe necessary?) !!
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setIdentity(modelViewMatrix);
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matmul4(modelViewMatrix, modelViewMatrix, cameraMatrix);
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matmul4(modelViewMatrix, modelViewMatrix, objectMatrix);
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for (k = 0; k < 4; k++) // For all 4 chunks
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{
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threeDPointer = &threeDRoms[(address[k]<<1) * 3];
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@ -1958,7 +1901,6 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
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////////////////////////////////////////////
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// GATHER A SINGLE TRIANGLE'S INFORMATION //
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////////////////////////////////////////////
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UINT8 triangleType = threeDPointer[1];
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UINT8 numVertices = 3;
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@ -1985,7 +1927,7 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
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polys[numPolys].texIndex = -1;
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// Set the polygon's palette
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polys[numPolys].palIndex = paletteState;
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polys[numPolys].palIndex = paletteState3d;
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for (m = 0; m < numVertices; m++) // For all vertices of the chunk
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{
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@ -2149,13 +2091,22 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
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memcpy(&lastPoly, &polys[numPolys], sizeof(struct polygon));
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/* FIXME: Okay, it's utterly horrible that i'm clipping the polys before storing them */
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////////////////////////////////////
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// A FEW 'GLOBAL' TRANSFORMATIONS //
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////////////////////////////////////
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// Now perform the world transformations...
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// !! Can eliminate this step with a matrix stack (maybe necessary?) !!
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setIdentity(modelViewMatrix);
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matmul4(modelViewMatrix, modelViewMatrix, cameraMatrix);
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matmul4(modelViewMatrix, modelViewMatrix, objectMatrix);
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// THE HNG64 HARDWARE DOES NOT SEEM TO BACKFACE CULL //
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///////////////////
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// BACKFACE CULL //
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///////////////////
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||||
// EMPIRICAL EVIDENCE SEEMS TO SHOW THE HNG64 HARDWARE DOES NOT BACKFACE CULL //
|
||||
/*
|
||||
float cullRay[4];
|
||||
float cullNorm[4];
|
||||
@ -2188,7 +2139,6 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
|
||||
//////////////////////////////////////////////////////////
|
||||
// TRANSFORM THE TRIANGLE INTO HOMOGENEOUS SCREEN SPACE //
|
||||
//////////////////////////////////////////////////////////
|
||||
|
||||
if (polys[numPolys].visible)
|
||||
{
|
||||
for (m = 0; m < polys[numPolys].n; m++)
|
||||
@ -2246,7 +2196,119 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
|
||||
numPolys++; // Add one more to the display list...
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
static void command3d(running_machine* machine, const UINT16* packet)
|
||||
{
|
||||
switch (packet[0])
|
||||
{
|
||||
case 0x0000: // Appears to be a NOP.
|
||||
break;
|
||||
|
||||
case 0x0001: // Camera transformation.
|
||||
break;
|
||||
|
||||
case 0x0010: // Unknown (called twice for fatfurwa 'howto' frame)
|
||||
break;
|
||||
|
||||
case 0x0011: // Palette / Model flags?
|
||||
break;
|
||||
|
||||
case 0x0012: // Projection Matrix
|
||||
break;
|
||||
|
||||
case 0x0100: // Geometry
|
||||
break;
|
||||
|
||||
case 0x0101: // Unknown: Geometry?
|
||||
break;
|
||||
|
||||
case 0x0102: // Unknown: Geometry?
|
||||
break;
|
||||
|
||||
case 0x1000: // Unknown: Some sort of global flags?
|
||||
break;
|
||||
|
||||
case 0x1001: // Unknown: Some sort of global flags?
|
||||
break;
|
||||
|
||||
default:
|
||||
logerror("HNG64: Unknown 3d command %04x.\n", packet[0]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
/* 3D/framebuffer video registers
|
||||
* ------------------------------
|
||||
*
|
||||
* UINT32 | Bits | Use
|
||||
* | 3322 2222 2222 1111 1111 11 |
|
||||
* -------+-1098-7654-3210-9876-5432-1098-7654-3210-+----------------
|
||||
* 0 | ???? ???? ???? ???? ccc? ???? ???? ???? | framebuffer color base, 0x311800 in Fatal Fury WA, 0x313800 in Buriki One
|
||||
* 1 | |
|
||||
* 2 | ???? ???? ???? ???? ???? ???? ???? ???? | camera / framebuffer global x/y? Actively used by Samurai Shodown 64 2
|
||||
* 3 | ---- --?x ---- ---- ---- ---- ---- ---- | unknown, unsetted by Buriki One and setted by Fatal Fury WA, buffering mode?
|
||||
* 4-11 | ---- ???? ---- ???? ---- ???? ---- ???? | Table filled with 0x0? data
|
||||
*
|
||||
*/
|
||||
static void draw3d(running_machine *machine)
|
||||
{
|
||||
int i,j,n;
|
||||
|
||||
UINT16 packet3d[16];
|
||||
|
||||
const rectangle *visarea = video_screen_get_visible_area(machine->primary_screen);
|
||||
|
||||
// Set some matrices to the identity...
|
||||
setIdentity(projectionMatrix);
|
||||
setIdentity(modelViewMatrix);
|
||||
setIdentity(cameraMatrix);
|
||||
|
||||
// Display list 2 comes after display list 1. Go figure.
|
||||
for (j = 1; j >= 0; j--)
|
||||
{
|
||||
UINT32 *workingList = hng64_dls[j];
|
||||
|
||||
for (i = 0; i < 0x80; i += 0x08)
|
||||
{
|
||||
// Debug...
|
||||
// mame_printf_debug("Element %.2d (%d) : %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n", i/0x08, j,
|
||||
// (UINT32)hng64_dls[j][i+0], (UINT32)hng64_dls[j][i+1],
|
||||
// (UINT32)hng64_dls[j][i+2], (UINT32)hng64_dls[j][i+3],
|
||||
// (UINT32)hng64_dls[j][i+4], (UINT32)hng64_dls[j][i+5],
|
||||
// (UINT32)hng64_dls[j][i+6], (UINT32)hng64_dls[j][i+7]);
|
||||
|
||||
// Transition code.
|
||||
for (n = 0; n < 0x08; n++)
|
||||
{
|
||||
packet3d[n*2+0] = (workingList[i+n] & 0xffff0000) >> 16;
|
||||
packet3d[n*2+1] = (workingList[i+n] & 0x0000ffff);
|
||||
}
|
||||
|
||||
// Depending on what the initial flags are, do sumthin'...
|
||||
switch((workingList[i+0] & 0xffff0000) >> 16)
|
||||
{
|
||||
case 0x0012:
|
||||
setCameraProjectionMatrix(packet3d);
|
||||
break;
|
||||
|
||||
case 0x0001:
|
||||
setCameraTransformation(packet3d);
|
||||
break;
|
||||
|
||||
case 0x0010:
|
||||
// UNKNOWN - light maybe
|
||||
break;
|
||||
|
||||
case 0x0011:
|
||||
set3dFlags(packet3d);
|
||||
break;
|
||||
|
||||
case 0x0100:
|
||||
recoverPolygonBlock(machine, packet3d);
|
||||
break;
|
||||
|
||||
default:
|
||||
@ -2256,7 +2318,6 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
|
||||
|
||||
// Don't forget about this !!!
|
||||
//mame_printf_debug(" %.8x\n\n", (UINT32)hng64_dls[j][0x80]);
|
||||
|
||||
}
|
||||
|
||||
|
||||
@ -2276,11 +2337,11 @@ static void draw3d(running_machine *machine, bitmap_t *bitmap, const rectangle *
|
||||
if (polys[i].visible)
|
||||
{
|
||||
//DrawWireframe(&polys[i], bitmap);
|
||||
drawShaded(machine, &polys[i], bitmap);
|
||||
drawShaded(machine, &polys[i]);
|
||||
}
|
||||
}
|
||||
|
||||
// usrintf_showmessage("%d", numPolys);
|
||||
//popmessage("%d", numPolys);
|
||||
|
||||
// Clear each of the display list buffers after drawing...
|
||||
for (i = 0; i < 0x81; i++)
|
||||
@ -2375,7 +2436,7 @@ static void normalize(float* x)
|
||||
///////////////////////////////////////////////////////////////////////////////////
|
||||
// The remainder of the code in this file is heavily //
|
||||
// influenced by, and sometimes copied verbatim from Andrew Zaferakis' SoftGL //
|
||||
// rasterizing system. http://www.cs.unc.edu/~andrewz/comp236/ //
|
||||
// rasterizing system. //
|
||||
// //
|
||||
// Andrew granted permission for its use in MAME in October of 2004. //
|
||||
///////////////////////////////////////////////////////////////////////////////////
|
||||
@ -2634,7 +2695,7 @@ static void DrawWireframe(struct polygon *p, bitmap_t *bitmap)
|
||||
/** **/
|
||||
/** Output: none **/
|
||||
/*********************************************************************/
|
||||
INLINE void FillSmoothTexPCHorizontalLine(running_machine *machine, bitmap_t *Color,
|
||||
INLINE void FillSmoothTexPCHorizontalLine(running_machine *machine,
|
||||
int Wrapping, int Filtering, int Function,
|
||||
int x_start, int x_end, int y, float z_start, float z_delta,
|
||||
float w_start, float w_delta, float r_start, float r_delta,
|
||||
@ -2730,7 +2791,7 @@ INLINE void FillSmoothTexPCHorizontalLine(running_machine *machine, bitmap_t *Co
|
||||
// nearest and bilinear filtering: Filtering={0,1}
|
||||
// replace and modulate application modes: Function={0,1}
|
||||
//---------------------------------------------------------------------------
|
||||
static void RasterizeTriangle_SMOOTH_TEX_PC(running_machine *machine, bitmap_t *Color,
|
||||
static void RasterizeTriangle_SMOOTH_TEX_PC(running_machine *machine,
|
||||
float A[4], float B[4], float C[4],
|
||||
float Ca[3], float Cb[3], float Cc[3], // PER-VERTEX RGB COLORS
|
||||
float Ta[2], float Tb[2], float Tc[2], // PER-VERTEX (S,T) TEX-COORDS
|
||||
@ -2925,7 +2986,7 @@ static void RasterizeTriangle_SMOOTH_TEX_PC(running_machine *machine, bitmap_t *
|
||||
|
||||
// Pass the horizontal line to the filler, this could be put in the routine
|
||||
// then interpolate for the next values of x and z
|
||||
FillSmoothTexPCHorizontalLine(machine, Color, Wrapping, Filtering, Function,
|
||||
FillSmoothTexPCHorizontalLine(machine, Wrapping, Filtering, Function,
|
||||
x_start, x_end, y_min, z_interp_x, z_delta_x, w_interp_x, w_delta_x,
|
||||
r_interp_x, r_delta_x, g_interp_x, g_delta_x, b_interp_x, b_delta_x,
|
||||
s_interp_x, s_delta_x, t_interp_x, t_delta_x);
|
||||
@ -3005,7 +3066,7 @@ static void RasterizeTriangle_SMOOTH_TEX_PC(running_machine *machine, bitmap_t *
|
||||
|
||||
// Pass the horizontal line to the filler, this could be put in the routine
|
||||
// then interpolate for the next values of x and z
|
||||
FillSmoothTexPCHorizontalLine(machine, Color, Wrapping, Filtering, Function,
|
||||
FillSmoothTexPCHorizontalLine(machine, Wrapping, Filtering, Function,
|
||||
x_start, x_end, y_mid, z_interp_x, z_delta_x, w_interp_x, w_delta_x,
|
||||
r_interp_x, r_delta_x, g_interp_x, g_delta_x, b_interp_x, b_delta_x,
|
||||
s_interp_x, s_delta_x, t_interp_x, t_delta_x);
|
||||
@ -3020,7 +3081,7 @@ static void RasterizeTriangle_SMOOTH_TEX_PC(running_machine *machine, bitmap_t *
|
||||
}
|
||||
}
|
||||
|
||||
static void drawShaded(running_machine *machine, struct polygon *p, bitmap_t *bitmap)
|
||||
static void drawShaded(running_machine *machine, struct polygon *p)
|
||||
{
|
||||
// The perspective-correct texture divide...
|
||||
// !!! There is a very good chance the HNG64 hardware does not do perspective-correct texture-mapping !!!
|
||||
@ -3037,7 +3098,7 @@ static void drawShaded(running_machine *machine, struct polygon *p, bitmap_t *bi
|
||||
|
||||
for (j = 1; j < p->n-1; j++)
|
||||
{
|
||||
RasterizeTriangle_SMOOTH_TEX_PC(machine, bitmap,
|
||||
RasterizeTriangle_SMOOTH_TEX_PC(machine,
|
||||
p->vert[0].clipCoords, p->vert[j].clipCoords, p->vert[j+1].clipCoords,
|
||||
p->vert[0].light, p->vert[j].light, p->vert[j+1].light,
|
||||
p->vert[0].texCoords, p->vert[j].texCoords, p->vert[j+1].texCoords,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user