2 * $Id: rendcore.c,v 1.21 2007-10-31 09:10:23 nkeynes Exp $
6 * Copyright (c) 2005 Nathan Keynes.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
19 #include "pvr2/pvr2.h"
22 #define GL_GLEXT_PROTOTYPES 1
26 int pvr2_poly_depthmode[8] = { GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL,
27 GL_GREATER, GL_NOTEQUAL, GL_GEQUAL,
29 int pvr2_poly_srcblend[8] = {
30 GL_ZERO, GL_ONE, GL_DST_COLOR, GL_ONE_MINUS_DST_COLOR,
31 GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA,
32 GL_ONE_MINUS_DST_ALPHA };
33 int pvr2_poly_dstblend[8] = {
34 GL_ZERO, GL_ONE, GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR,
35 GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA,
36 GL_ONE_MINUS_DST_ALPHA };
37 int pvr2_poly_texblend[4] = {
43 int pvr2_render_colour_format[8] = {
44 COLFMT_BGRA1555, COLFMT_RGB565, COLFMT_BGRA4444, COLFMT_BGRA1555,
45 COLFMT_BGR888, COLFMT_BGRA8888, COLFMT_BGRA8888, COLFMT_BGRA4444 };
53 #define SEGMENT_END 0x80000000
54 #define SEGMENT_ZCLEAR 0x40000000
55 #define SEGMENT_SORT_TRANS 0x20000000
56 #define SEGMENT_START 0x10000000
57 #define SEGMENT_X(c) (((c) >> 2) & 0x3F)
58 #define SEGMENT_Y(c) (((c) >> 8) & 0x3F)
59 #define NO_POINTER 0x80000000
61 extern char *video_base;
63 gboolean pvr2_force_fragment_alpha = FALSE;
64 gboolean pvr2_debug_render = FALSE;
69 pvraddr_t opaquemod_ptr;
71 pvraddr_t transmod_ptr;
72 pvraddr_t punchout_ptr;
75 void render_print_tilelist( FILE *f, uint32_t tile_entry );
78 * Convert a half-float (16-bit) FP number to a regular 32-bit float.
79 * Source is 1-bit sign, 5-bit exponent, 10-bit mantissa.
80 * TODO: Check the correctness of this.
82 float halftofloat( uint16_t half )
88 /* int e = ((half & 0x7C00) >> 10) - 15 + 127;
90 temp.i = ((half & 0x8000) << 16) | (e << 23) |
91 ((half & 0x03FF) << 13); */
92 temp.i = ((uint32_t)half)<<16;
98 * Setup the GL context for the supplied polygon context.
99 * @param context pointer to 3 or 5 words of polygon context
100 * @param modified boolean flag indicating that the modified
101 * version should be used, rather than the normal version.
103 void render_set_context( uint32_t *context, int render_mode )
105 uint32_t poly1 = context[0], poly2, texture;
106 if( render_mode == RENDER_FULLMOD ) {
108 texture = context[4];
111 texture = context[2];
114 if( POLY1_DEPTH_ENABLE(poly1) ) {
115 glEnable( GL_DEPTH_TEST );
116 glDepthFunc( POLY1_DEPTH_MODE(poly1) );
118 glDisable( GL_DEPTH_TEST );
121 switch( POLY1_CULL_MODE(poly1) ) {
124 glDisable( GL_CULL_FACE );
127 glEnable( GL_CULL_FACE );
128 glFrontFace( GL_CW );
131 glEnable( GL_CULL_FACE );
132 glFrontFace( GL_CCW );
136 if( POLY1_SPECULAR(poly1) ) {
137 glEnable(GL_COLOR_SUM);
139 glDisable(GL_COLOR_SUM);
142 pvr2_force_fragment_alpha = POLY2_ALPHA_ENABLE(poly2) ? FALSE : TRUE;
144 if( POLY1_TEXTURED(poly1) ) {
145 int width = POLY2_TEX_WIDTH(poly2);
146 int height = POLY2_TEX_HEIGHT(poly2);
147 glEnable(GL_TEXTURE_2D);
148 texcache_get_texture( (texture&0x000FFFFF)<<3, width, height, texture );
149 switch( POLY2_TEX_BLEND(poly2) ) {
150 case 0: /* Replace */
151 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
154 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL );
156 case 1: /* Modulate RGB */
157 /* This is not directly supported by opengl (other than by mucking
158 * with the texture format), but we get the same effect by forcing
159 * the fragment alpha to 1.0 and using GL_MODULATE.
161 pvr2_force_fragment_alpha = TRUE;
162 case 3: /* Modulate RGBA */
163 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
167 if( POLY2_TEX_CLAMP_U(poly2) ) {
168 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
170 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
172 if( POLY2_TEX_CLAMP_V(poly2) ) {
173 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
175 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
178 glDisable( GL_TEXTURE_2D );
181 glShadeModel( POLY1_SHADE_MODEL(poly1) );
183 int srcblend = POLY2_SRC_BLEND(poly2);
184 int destblend = POLY2_DEST_BLEND(poly2);
185 glBlendFunc( srcblend, destblend );
187 if( POLY2_SRC_BLEND_TARGET(poly2) || POLY2_DEST_BLEND_TARGET(poly2) ) {
188 ERROR( "Accumulation buffer not supported" );
194 #define FARGB_A(x) (((float)(((x)>>24)+1))/256.0)
195 #define FARGB_R(x) (((float)((((x)>>16)&0xFF)+1))/256.0)
196 #define FARGB_G(x) (((float)((((x)>>8)&0xFF)+1))/256.0)
197 #define FARGB_B(x) (((float)(((x)&0xFF)+1))/256.0)
199 void render_unpack_vertexes( struct vertex_unpacked *out, uint32_t poly1,
200 uint32_t *vertexes, int num_vertexes,
201 int vertex_size, int render_mode )
204 if( render_mode == RENDER_FULLMOD ) {
205 m = (vertex_size - 3)/2;
208 for( i=0; i<num_vertexes; i++ ) {
209 float *vertexf = (float *)vertexes;
211 out[i].x = vertexf[0];
212 out[i].y = vertexf[1];
213 out[i].z = vertexf[2];
214 if( POLY1_TEXTURED(poly1) ) {
215 if( POLY1_UV16(poly1) ) {
216 out[i].u = halftofloat(vertexes[k]>>16);
217 out[i].v = halftofloat(vertexes[k]);
220 out[i].u = vertexf[k];
221 out[i].v = vertexf[k+1];
228 uint32_t argb = vertexes[k++];
229 out[i].rgba[0] = FARGB_R(argb);
230 out[i].rgba[1] = FARGB_G(argb);
231 out[i].rgba[2] = FARGB_B(argb);
232 out[i].rgba[3] = FARGB_A(argb);
233 if( POLY1_SPECULAR(poly1) ) {
234 uint32_t offset = vertexes[k++];
235 out[i].offset_rgba[0] = FARGB_R(offset);
236 out[i].offset_rgba[1] = FARGB_G(offset);
237 out[i].offset_rgba[2] = FARGB_B(offset);
238 out[i].offset_rgba[3] = FARGB_A(offset);
240 vertexes += vertex_size;
245 * Unpack the vertexes for a quad, calculating the values for the last
247 * FIXME: Integrate this with rendbkg somehow
249 void render_unpack_quad( struct vertex_unpacked *unpacked, uint32_t poly1,
250 uint32_t *vertexes, int vertex_size,
254 struct vertex_unpacked diff0, diff1;
256 render_unpack_vertexes( unpacked, poly1, vertexes, 3, vertex_size, render_mode );
258 diff0.x = unpacked[0].x - unpacked[1].x;
259 diff0.y = unpacked[0].y - unpacked[1].y;
260 diff1.x = unpacked[2].x - unpacked[1].x;
261 diff1.y = unpacked[2].y - unpacked[1].y;
263 float detxy = ((diff1.y) * (diff0.x)) - ((diff0.y) * (diff1.x));
264 float *vertexf = (float *)(vertexes+(vertex_size*3));
266 memcpy( &unpacked[3], &unpacked[2], sizeof(struct vertex_unpacked) );
267 unpacked[3].x = vertexf[0];
268 unpacked[3].y = vertexf[1];
272 unpacked[3].x = vertexf[0];
273 unpacked[3].y = vertexf[1];
274 float t = ((unpacked[3].x - unpacked[1].x) * diff1.y -
275 (unpacked[3].y - unpacked[1].y) * diff1.x) / detxy;
276 float s = ((unpacked[3].y - unpacked[1].y) * diff0.x -
277 (unpacked[3].x - unpacked[1].x) * diff0.y) / detxy;
278 diff0.z = (1/unpacked[0].z) - (1/unpacked[1].z);
279 diff1.z = (1/unpacked[2].z) - (1/unpacked[1].z);
280 unpacked[3].z = 1/((1/unpacked[1].z) + (t*diff0.z) + (s*diff1.z));
282 diff0.u = unpacked[0].u - unpacked[1].u;
283 diff0.v = unpacked[0].v - unpacked[1].v;
284 diff1.u = unpacked[2].u - unpacked[1].u;
285 diff1.v = unpacked[2].v - unpacked[1].v;
286 unpacked[3].u = unpacked[1].u + (t*diff0.u) + (s*diff1.u);
287 unpacked[3].v = unpacked[1].v + (t*diff0.v) + (s*diff1.v);
289 if( !POLY1_GOURAUD_SHADED(poly1) ) {
290 memcpy( unpacked[3].rgba, unpacked[2].rgba, sizeof(unpacked[2].rgba) );
291 memcpy( unpacked[3].offset_rgba, unpacked[2].offset_rgba, sizeof(unpacked[2].offset_rgba) );
293 for( i=0; i<4; i++ ) {
294 float d0 = unpacked[0].rgba[i] - unpacked[1].rgba[i];
295 float d1 = unpacked[2].rgba[i] - unpacked[1].rgba[i];
296 unpacked[3].rgba[i] = unpacked[1].rgba[i] + (t*d0) + (s*d1);
297 d0 = unpacked[0].offset_rgba[i] - unpacked[1].offset_rgba[i];
298 d1 = unpacked[2].offset_rgba[i] - unpacked[1].offset_rgba[i];
299 unpacked[3].offset_rgba[i] = unpacked[1].offset_rgba[i] + (t*d0) + (s*d1);
304 void render_unpacked_vertex_array( uint32_t poly1, struct vertex_unpacked *vertexes[],
308 glBegin( GL_TRIANGLE_STRIP );
310 for( i=0; i<num_vertexes; i++ ) {
311 if( POLY1_TEXTURED(poly1) ) {
312 glTexCoord2f( vertexes[i]->u, vertexes[i]->v );
315 if( pvr2_force_fragment_alpha ) {
316 glColor4f( vertexes[i]->rgba[0], vertexes[i]->rgba[1], vertexes[i]->rgba[2], 1.0 );
318 glColor4f( vertexes[i]->rgba[0], vertexes[i]->rgba[1], vertexes[i]->rgba[2],
319 vertexes[i]->rgba[3] );
321 if( POLY1_SPECULAR(poly1) ) {
322 glSecondaryColor3fEXT( vertexes[i]->offset_rgba[0],
323 vertexes[i]->offset_rgba[1],
324 vertexes[i]->offset_rgba[2] );
326 glVertex3f( vertexes[i]->x, vertexes[i]->y, 1/vertexes[i]->z );
332 void render_quad_vertexes( uint32_t poly1, uint32_t *vertexes, int vertex_size, int render_mode )
334 struct vertex_unpacked unpacked[4];
335 struct vertex_unpacked *pt[4] = {&unpacked[0], &unpacked[1], &unpacked[3], &unpacked[2]};
336 render_unpack_quad( unpacked, poly1, vertexes, vertex_size, render_mode );
337 render_unpacked_vertex_array( poly1, pt, 4 );
340 void render_vertex_array( uint32_t poly1, uint32_t *vert_array[], int num_vertexes, int vertex_size,
345 if( render_mode == RENDER_FULLMOD ) {
346 m = (vertex_size - 3)/2;
349 glBegin( GL_TRIANGLE_STRIP );
351 for( i=0; i<num_vertexes; i++ ) {
352 uint32_t *vertexes = vert_array[i];
353 float *vertexf = (float *)vert_array[i];
356 if( POLY1_TEXTURED(poly1) ) {
357 if( POLY1_UV16(poly1) ) {
358 glTexCoord2f( halftofloat(vertexes[k]>>16),
359 halftofloat(vertexes[k]) );
362 glTexCoord2f( vertexf[k], vertexf[k+1] );
367 argb = vertexes[k++];
368 if( pvr2_force_fragment_alpha ) {
369 glColor4ub( (GLubyte)(argb >> 16), (GLubyte)(argb >> 8),
370 (GLubyte)argb, 0xFF );
372 glColor4ub( (GLubyte)(argb >> 16), (GLubyte)(argb >> 8),
373 (GLubyte)argb, (GLubyte)(argb >> 24) );
376 if( POLY1_SPECULAR(poly1) ) {
377 uint32_t spec = vertexes[k++];
378 glSecondaryColor3ubEXT( (GLubyte)(spec >> 16), (GLubyte)(spec >> 8),
381 glVertex3f( vertexf[0], vertexf[1], 1/vertexf[2] );
382 vertexes += vertex_size;
388 void render_vertexes( uint32_t poly1, uint32_t *vertexes, int num_vertexes, int vertex_size,
391 uint32_t *vert_array[num_vertexes];
393 for( i=0; i<num_vertexes; i++ ) {
394 vert_array[i] = vertexes;
395 vertexes += vertex_size;
397 render_vertex_array( poly1, vert_array, num_vertexes, vertex_size, render_mode );
401 * Render a simple (not auto-sorted) tile
403 void render_tile( pvraddr_t tile_entry, int render_mode, gboolean cheap_modifier_mode ) {
404 uint32_t poly_bank = MMIO_READ(PVR2,RENDER_POLYBASE);
405 uint32_t *tile_list = (uint32_t *)(video_base+tile_entry);
407 uint32_t entry = *tile_list++;
408 if( entry >> 28 == 0x0F ) {
410 } else if( entry >> 28 == 0x0E ) {
411 tile_list = (uint32_t *)(video_base + (entry&0x007FFFFF));
413 uint32_t *polygon = (uint32_t *)(video_base + poly_bank + ((entry & 0x000FFFFF) << 2));
414 int is_modified = entry & 0x01000000;
415 int vertex_length = (entry >> 21) & 0x07;
416 int context_length = 3;
417 if( is_modified && !cheap_modifier_mode ) {
423 if( (entry & 0xE0000000) == 0x80000000 ) {
425 int strip_count = ((entry >> 25) & 0x0F)+1;
426 int polygon_length = 3 * vertex_length + context_length;
428 for( i=0; i<strip_count; i++ ) {
429 render_set_context( polygon, render_mode );
430 render_vertexes( *polygon, polygon+context_length, 3, vertex_length,
432 polygon += polygon_length;
434 } else if( (entry & 0xE0000000) == 0xA0000000 ) {
436 int strip_count = ((entry >> 25) & 0x0F)+1;
437 int polygon_length = 4 * vertex_length + context_length;
439 for( i=0; i<strip_count; i++ ) {
440 render_set_context( polygon, render_mode );
441 render_quad_vertexes( *polygon, polygon+context_length, vertex_length,
443 polygon += polygon_length;
447 int i, first=-1, last = -1;
448 for( i=0; i<6; i++ ) {
449 if( entry & (0x40000000>>i) ) {
450 if( first == -1 ) first = i;
456 render_set_context(polygon, render_mode);
457 render_vertexes( *polygon, polygon+context_length + (first*vertex_length),
458 (last-first+3), vertex_length, render_mode );
465 void pvr2_render_tilebuffer( int width, int height, int clipx1, int clipy1,
466 int clipx2, int clipy2 ) {
468 pvraddr_t segmentbase = MMIO_READ( PVR2, RENDER_TILEBASE );
470 gboolean cheap_shadow;
472 int obj_config = MMIO_READ( PVR2, RENDER_OBJCFG );
473 int isp_config = MMIO_READ( PVR2, RENDER_ISPCFG );
474 int shadow_cfg = MMIO_READ( PVR2, RENDER_SHADOW );
476 if( (obj_config & 0x00200000) == 0 ) {
477 if( isp_config & 1 ) {
486 cheap_shadow = shadow_cfg & 0x100 ? TRUE : FALSE;
488 struct tile_segment *segment = (struct tile_segment *)(video_base + segmentbase);
490 glEnable( GL_SCISSOR_TEST );
492 // fwrite_dump32v( (uint32_t *)segment, sizeof(struct tile_segment), 6, stderr );
493 int tilex = SEGMENT_X(segment->control);
494 int tiley = SEGMENT_Y(segment->control);
498 if( x1 + 32 <= clipx1 ||
502 /* Tile completely clipped, skip */
506 /* Set a scissor on the visible part of the tile */
507 int w = MIN(x1+32, clipx2) - x1;
508 int h = MIN(y1+32, clipy2) - y1;
511 glScissor( x1, height-y1-h, w, h );
513 if( (segment->opaque_ptr & NO_POINTER) == 0 ) {
514 if( pvr2_debug_render ) {
515 fprintf( stderr, "Tile %d,%d Opaque\n", tilex, tiley );
516 render_print_tilelist( stderr, segment->opaque_ptr );
518 if( (segment->opaquemod_ptr & NO_POINTER) == 0 ) {
521 render_tile( segment->opaque_ptr, RENDER_NORMAL, cheap_shadow );
524 if( (segment->trans_ptr & NO_POINTER) == 0 ) {
525 if( pvr2_debug_render ) {
526 fprintf( stderr, "Tile %d,%d Trans\n", tilex, tiley );
527 render_print_tilelist( stderr, segment->trans_ptr );
529 if( (segment->transmod_ptr & NO_POINTER) == 0 ) {
532 if( tile_sort == 2 ||
533 (tile_sort == 1 && ((segment->control & SEGMENT_SORT_TRANS)==0)) ) {
534 render_autosort_tile( segment->trans_ptr, RENDER_NORMAL, cheap_shadow );
536 render_tile( segment->trans_ptr, RENDER_NORMAL, cheap_shadow );
540 if( (segment->punchout_ptr & NO_POINTER) == 0 ) {
541 if( pvr2_debug_render ) {
542 fprintf( stderr, "Tile %d,%d Punchout\n", tilex, tiley );
543 render_print_tilelist( stderr, segment->punchout_ptr );
545 render_tile( segment->punchout_ptr, RENDER_NORMAL, cheap_shadow );
547 } while( ((segment++)->control & SEGMENT_END) == 0 );
548 glDisable( GL_SCISSOR_TEST );
551 static float render_find_maximum_tile_z( pvraddr_t tile_entry, float inputz )
553 uint32_t poly_bank = MMIO_READ(PVR2,RENDER_POLYBASE);
554 uint32_t *tile_list = (uint32_t *)(video_base+tile_entry);
555 int shadow_cfg = MMIO_READ( PVR2, RENDER_SHADOW ) & 0x100;
559 uint32_t entry = *tile_list++;
560 if( entry >> 28 == 0x0F ) {
562 } else if( entry >> 28 == 0x0E ) {
563 tile_list = (uint32_t *)(video_base + (entry&0x007FFFFF));
565 uint32_t *polygon = (uint32_t *)(video_base + poly_bank + ((entry & 0x000FFFFF) << 2));
566 int vertex_length = (entry >> 21) & 0x07;
567 int context_length = 3;
568 if( (entry & 0x01000000) && (shadow_cfg==0) ) {
573 if( (entry & 0xE0000000) == 0x80000000 ) {
575 int strip_count = ((entry >> 25) & 0x0F)+1;
576 float *vertexz = (float *)(polygon+context_length+2);
577 for( i=0; i<strip_count; i++ ) {
578 for( j=0; j<3; j++ ) {
582 vertexz += vertex_length;
584 vertexz += context_length;
586 } else if( (entry & 0xE0000000) == 0xA0000000 ) {
588 int strip_count = ((entry >> 25) & 0x0F)+1;
590 float *vertexz = (float *)(polygon+context_length+2);
591 for( i=0; i<strip_count; i++ ) {
592 for( j=0; j<4; j++ ) {
596 vertexz += vertex_length;
598 vertexz+=context_length;
603 float *vertexz = (float *)polygon+context_length+2;
604 for( i=0; i<6; i++ ) {
605 if( (entry & (0x40000000>>i)) && *vertexz > z ) {
608 vertexz += vertex_length;
617 * Scan through the scene to determine the largest z value (in order to set up
618 * an appropriate near clip plane).
620 float pvr2_render_find_maximum_z( )
622 pvraddr_t segmentbase = MMIO_READ( PVR2, RENDER_TILEBASE );
623 float maximumz = MMIO_READF( PVR2, RENDER_FARCLIP ); /* Initialize to the far clip plane */
625 struct tile_segment *segment = (struct tile_segment *)(video_base + segmentbase);
628 if( (segment->opaque_ptr & NO_POINTER) == 0 ) {
629 maximumz = render_find_maximum_tile_z(segment->opaque_ptr, maximumz);
631 if( (segment->opaquemod_ptr & NO_POINTER) == 0 ) {
632 maximumz = render_find_maximum_tile_z(segment->opaquemod_ptr, maximumz);
634 if( (segment->trans_ptr & NO_POINTER) == 0 ) {
635 maximumz = render_find_maximum_tile_z(segment->trans_ptr, maximumz);
637 if( (segment->transmod_ptr & NO_POINTER) == 0 ) {
638 maximumz = render_find_maximum_tile_z(segment->transmod_ptr, maximumz);
640 if( (segment->punchout_ptr & NO_POINTER) == 0 ) {
641 maximumz = render_find_maximum_tile_z(segment->punchout_ptr, maximumz);
644 } while( ((segment++)->control & SEGMENT_END) == 0 );
650 * Scan the segment info to determine the width and height of the render (in
652 * @param x,y output values to receive the width and height info.
654 void pvr2_render_getsize( int *x, int *y )
656 pvraddr_t segmentbase = MMIO_READ( PVR2, RENDER_TILEBASE );
657 int maxx = 0, maxy = 0;
659 struct tile_segment *segment = (struct tile_segment *)(video_base + segmentbase);
661 int tilex = SEGMENT_X(segment->control);
662 int tiley = SEGMENT_Y(segment->control);
669 } while( ((segment++)->control & SEGMENT_END) == 0 );
675 void render_print_vertexes( FILE *f, uint32_t poly1, uint32_t *vert_array[],
676 int num_vertexes, int vertex_size )
680 for( i=0; i<num_vertexes; i++ ) {
682 float *vertf = (float *)vert_array[i];
683 uint32_t *verti = (uint32_t *)vert_array[i];
684 p += sprintf( p, " V %9.5f,%9.5f,%9.5f ", vertf[0], vertf[1], vertf[2] );
686 if( POLY1_TEXTURED(poly1) ) {
687 if( POLY1_UV16(poly1) ) {
688 p += sprintf( p, "uv=%9.5f,%9.5f ",
689 halftofloat(verti[k]>>16),
690 halftofloat(verti[k]) );
693 p += sprintf( p, "uv=%9.5f,%9.5f ", vertf[k], vertf[k+1] );
698 p += sprintf( p, "%08X ", verti[k++] );
699 if( POLY1_SPECULAR(poly1) ) {
700 p += sprintf( p, "%08X", verti[k++] );
702 p += sprintf( p, "\n" );
707 void render_print_polygon( FILE *f, uint32_t entry )
709 uint32_t poly_bank = MMIO_READ(PVR2,RENDER_POLYBASE);
710 int shadow_cfg = MMIO_READ( PVR2, RENDER_SHADOW ) & 0x100;
713 if( entry >> 28 == 0x0F ) {
714 fprintf( f, "EOT\n" );
715 } else if( entry >> 28 == 0x0E ) {
716 fprintf( f, "LINK %08X\n", entry &0x7FFFFF );
718 uint32_t *polygon = (uint32_t *)(video_base + poly_bank + ((entry & 0x000FFFFF) << 2));
719 int vertex_length = (entry >> 21) & 0x07;
720 int context_length = 3;
721 if( (entry & 0x01000000) && (shadow_cfg==0) ) {
726 if( (entry & 0xE0000000) == 0x80000000 ) {
728 int strip_count = ((entry >> 25) & 0x0F)+1;
729 for( i=0; i<strip_count; i++ ) {
730 fprintf( f, "TRI %08X %08X %08X\n", polygon[0], polygon[1], polygon[2] );
732 array[0] = polygon + context_length;
733 array[1] = array[0] + vertex_length;
734 array[2] = array[1] + vertex_length;
735 render_print_vertexes( f, *polygon, array, 3, vertex_length );
736 polygon = array[2] + vertex_length;
738 } else if( (entry & 0xE0000000) == 0xA0000000 ) {
740 int strip_count = ((entry >> 25) & 0x0F)+1;
741 for( i=0; i<strip_count; i++ ) {
742 fprintf( f, "QUAD %08X %08X %08X\n", polygon[0], polygon[1], polygon[2] );
744 array[0] = polygon + context_length;
745 array[1] = array[0] + vertex_length;
746 array[2] = array[1] + vertex_length;
747 array[3] = array[2] + vertex_length;
748 render_print_vertexes( f, *polygon, array, 4, vertex_length );
749 polygon = array[3] + vertex_length;
755 for( i=0; i<6; i++ ) {
756 if( entry & (0x40000000>>i) ) {
760 fprintf( f, "POLY %08X %08X %08X\n", polygon[0], polygon[1], polygon[2] );
761 for( i=0; i<last+2; i++ ) {
762 array[i] = polygon + context_length + vertex_length*i;
764 render_print_vertexes( f, *polygon, array, last+2, vertex_length );
769 void render_print_tilelist( FILE *f, uint32_t tile_entry )
771 uint32_t *tile_list = (uint32_t *)(video_base+tile_entry);
773 uint32_t entry = *tile_list++;
774 if( entry >> 28 == 0x0F ) {
776 } else if( entry >> 28 == 0x0E ) {
777 tile_list = (uint32_t *)(video_base + (entry&0x007FFFFF));
779 render_print_polygon(f, entry);
.