filename | src/pvr2/pvr2.h |
changeset | 561:533f6b478071 |
prev | 545:fdcdcd8b9fd1 |
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author | nkeynes |
date | Fri Feb 08 00:06:56 2008 +0000 (16 years ago) |
permissions | -rw-r--r-- |
last change | Fix LDS/STS to FPUL/FPSCR to check the FPU disabled bit. Fixes the linux 2.4.0-test8 kernel boot (this wasn't exactly very well documented in the original manual) |
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1 /**
2 * $Id$
3 *
4 * PVR2 (video chip) functions and macros.
5 *
6 * Copyright (c) 2005 Nathan Keynes.
7 *
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.
12 *
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.
17 */
19 #include "dream.h"
20 #include "mem.h"
21 #include "display.h"
22 #include "pvr2/pvr2mmio.h"
24 typedef unsigned int pvraddr_t;
25 typedef unsigned int pvr64addr_t;
27 #define DISPMODE_ENABLE 0x00000001 /* Display enable */
28 #define DISPMODE_LINEDOUBLE 0x00000002 /* scanline double */
29 #define DISPMODE_COLFMT 0x0000000C /* Colour mode */
30 #define DISPMODE_CLOCKDIV 0x08000000 /* Clock divide-by-2 */
32 #define DISPSIZE_MODULO 0x3FF00000 /* line skip +1 (32-bit words)*/
33 #define DISPSIZE_LPF 0x000FFC00 /* lines per field */
34 #define DISPSIZE_PPL 0x000003FF /* pixel words (32 bit) per line */
36 #define DISPCFG_VP 0x00000001 /* V-sync polarity */
37 #define DISPCFG_HP 0x00000002 /* H-sync polarity */
38 #define DISPCFG_I 0x00000010 /* Interlace enable */
39 #define DISPCFG_BS 0x000000C0 /* Broadcast standard */
40 #define DISPCFG_VO 0x00000100 /* Video output enable */
42 #define DISPSYNC_LINE_MASK 0x000003FF
43 #define DISPSYNC_EVEN_FIELD 0x00000000
44 #define DISPSYNC_ODD_FIELD 0x00000400
45 #define DISPSYNC_ACTIVE 0x00000800
46 #define DISPSYNC_HSYNC 0x00001000
47 #define DISPSYNC_VSYNC 0x00002000
49 #define BS_NTSC 0x00000000
50 #define BS_PAL 0x00000040
51 #define BS_PALM 0x00000080 /* ? */
52 #define BS_PALN 0x000000C0 /* ? */
54 #define PVR2_RAM_BASE 0x05000000
55 #define PVR2_RAM_BASE_INT 0x04000000
56 #define PVR2_RAM_SIZE (8 * 1024 * 1024)
57 #define PVR2_RAM_PAGES (PVR2_RAM_SIZE>>12)
58 #define PVR2_RAM_MASK 0x7FFFFF
60 #define RENDER_ZONLY 0
61 #define RENDER_NORMAL 1 /* Render non-modified polygons */
62 #define RENDER_CHEAPMOD 2 /* Render cheap-modified polygons */
63 #define RENDER_FULLMOD 3 /* Render the fully-modified version of the polygons */
65 void pvr2_next_frame( void );
66 void pvr2_set_base_address( uint32_t );
67 int pvr2_get_frame_count( void );
68 render_buffer_t pvr2_get_front_buffer();
69 uint32_t pvr2_get_border_colour();
70 gboolean pvr2_save_next_scene( const gchar *filename );
72 #define PVR2_CMD_END_OF_LIST 0x00
73 #define PVR2_CMD_USER_CLIP 0x20
74 #define PVR2_CMD_POLY_OPAQUE 0x80
75 #define PVR2_CMD_MOD_OPAQUE 0x81
76 #define PVR2_CMD_POLY_TRANS 0x82
77 #define PVR2_CMD_MOD_TRANS 0x83
78 #define PVR2_CMD_POLY_PUNCHOUT 0x84
79 #define PVR2_CMD_VERTEX 0xE0
80 #define PVR2_CMD_VERTEX_LAST 0xF0
82 #define PVR2_POLY_TEXTURED 0x00000008
83 #define PVR2_POLY_SPECULAR 0x00000004
84 #define PVR2_POLY_SHADED 0x00000002
85 #define PVR2_POLY_UV_16BIT 0x00000001
87 #define PVR2_POLY_MODE_CLAMP_RGB 0x00200000
88 #define PVR2_POLY_MODE_ALPHA 0x00100000
89 #define PVR2_POLY_MODE_TEXALPHA 0x00080000
90 #define PVR2_POLY_MODE_FLIP_S 0x00040000
91 #define PVR2_POLY_MODE_FLIP_T 0x00020000
92 #define PVR2_POLY_MODE_CLAMP_S 0x00010000
93 #define PVR2_POLY_MODE_CLAMP_T 0x00008000
95 #define PVR2_POLY_FOG_LOOKUP 0x00000000
96 #define PVR2_POLY_FOG_VERTEX 0x00400000
97 #define PVR2_POLY_FOG_DISABLED 0x00800000
98 #define PVR2_POLY_FOG_LOOKUP2 0x00C00000
101 #define PVR2_TEX_FORMAT_ARGB1555 0x00000000
102 #define PVR2_TEX_FORMAT_RGB565 0x08000000
103 #define PVR2_TEX_FORMAT_ARGB4444 0x10000000
104 #define PVR2_TEX_FORMAT_YUV422 0x18000000
105 #define PVR2_TEX_FORMAT_BUMPMAP 0x20000000
106 #define PVR2_TEX_FORMAT_IDX4 0x28000000
107 #define PVR2_TEX_FORMAT_IDX8 0x30000000
109 #define PVR2_TEX_MIPMAP 0x80000000
110 #define PVR2_TEX_COMPRESSED 0x40000000
111 #define PVR2_TEX_FORMAT_MASK 0x38000000
112 #define PVR2_TEX_UNTWIDDLED 0x04000000
113 #define PVR2_TEX_STRIDE 0x02000000
114 #define PVR2_TEX_IS_PALETTE(mode) ( (mode & PVR2_TEX_FORMAT_MASK) == PVR2_TEX_FORMAT_IDX4 || (mode&PVR2_TEX_FORMAT_MASK) == PVR2_TEX_FORMAT_IDX8 )
117 #define PVR2_TEX_ADDR(x) ( ((x)&0x01FFFFF)<<3 );
118 #define PVR2_TEX_IS_MIPMAPPED(x) ( ((x) & 0x84000000) == 0x80000000 )
119 #define PVR2_TEX_IS_COMPRESSED(x) ( (x) & PVR2_TEX_COMPRESSED )
120 #define PVR2_TEX_IS_TWIDDLED(x) (((x) & PVR2_TEX_UNTWIDDLED) == 0)
121 #define PVR2_TEX_IS_STRIDE(x) (((x) & 0x06000000) == 0x06000000)
123 /****************************** Frame Buffer *****************************/
125 /**
126 * Write a block of data to an address in the DMA range (0x10000000 -
127 * 0x13FFFFFF), ie TA, YUV, or texture ram.
128 */
129 void pvr2_dma_write( sh4addr_t dest, unsigned char *src, uint32_t length );
131 /**
132 * Write to the interleaved memory address space (aka 64-bit address space).
133 */
134 void pvr2_vram64_write( sh4addr_t dest, unsigned char *src, uint32_t length );
136 /**
137 * Write to the interleaved memory address space (aka 64-bit address space),
138 * using a line length and stride.
139 */
140 void pvr2_vram64_write_stride( sh4addr_t dest, unsigned char *src, uint32_t line_bytes,
141 uint32_t line_stride_bytes, uint32_t line_count );
143 /**
144 * Read from the interleaved memory address space (aka 64-bit address space)
145 */
146 void pvr2_vram64_read( unsigned char *dest, sh4addr_t src, uint32_t length );
148 /**
149 * Read a twiddled image from interleaved memory address space (aka 64-bit address
150 * space), writing the image to the destination buffer in detwiddled format.
151 * Width and height must be powers of 2
152 * This version reads 4-bit pixels.
153 */
154 void pvr2_vram64_read_twiddled_4( unsigned char *dest, sh4addr_t src, uint32_t width, uint32_t height );
157 /**
158 * Read a twiddled image from interleaved memory address space (aka 64-bit address
159 * space), writing the image to the destination buffer in detwiddled format.
160 * Width and height must be powers of 2
161 * This version reads 8-bit pixels.
162 */
163 void pvr2_vram64_read_twiddled_8( unsigned char *dest, sh4addr_t src, uint32_t width, uint32_t height );
165 /**
166 * Read a twiddled image from interleaved memory address space (aka 64-bit address
167 * space), writing the image to the destination buffer in detwiddled format.
168 * Width and height must be powers of 2, and src must be 16-bit aligned.
169 * This version reads 16-bit pixels.
170 */
171 void pvr2_vram64_read_twiddled_16( unsigned char *dest, sh4addr_t src, uint32_t width, uint32_t height );
173 /**
174 * Read an image from the interleaved memory address space (aka 64-bit address space)
175 * where the source and destination line sizes may differ. Note that both byte
176 * counts must be a multiple of 4, and the src address must be 32-bit aligned.
177 */
178 void pvr2_vram64_read_stride( unsigned char *dest, uint32_t dest_line_bytes, sh4addr_t srcaddr,
179 uint32_t src_line_bytes, uint32_t line_count );
180 /**
181 * Dump a portion of vram to a stream from the interleaved memory address
182 * space.
183 */
184 void pvr2_vram64_dump( sh4addr_t addr, uint32_t length, FILE *f );
186 /**
187 * Flush the indicated render buffer back to PVR. Caller is responsible for
188 * tracking whether there is actually anything in the buffer.
189 *
190 * @param buffer A render buffer indicating the address to store to, and the
191 * format the data needs to be in.
192 * @param backBuffer TRUE to flush the back buffer, FALSE for
193 * the front buffer.
194 */
195 void pvr2_render_buffer_copy_to_sh4( render_buffer_t buffer );
197 /**
198 * Invalidate any caching on the supplied SH4 address
199 */
200 gboolean pvr2_render_buffer_invalidate( sh4addr_t addr, gboolean isWrite );
203 /**************************** Tile Accelerator ***************************/
204 /**
205 * Process the data in the supplied buffer as an array of TA command lists.
206 * Any excess bytes are held pending until a complete list is sent
207 */
208 void pvr2_ta_write( unsigned char *buf, uint32_t length );
211 /**
212 * (Re)initialize the tile accelerator in preparation for the next scene.
213 * Normally called immediately before commencing polygon transmission.
214 */
215 void pvr2_ta_init( void );
217 void pvr2_ta_reset( void );
219 void pvr2_ta_save_state( FILE *f );
221 int pvr2_ta_load_state( FILE *f );
223 /****************************** YUV Converter ****************************/
225 /**
226 * Process a block of YUV data.
227 */
228 void pvr2_yuv_write( unsigned char *buf, uint32_t length );
230 /**
231 * Initialize the YUV converter.
232 */
233 void pvr2_yuv_init( uint32_t target_addr );
235 void pvr2_yuv_set_config( uint32_t config );
237 void pvr2_yuv_save_state( FILE *f );
239 int pvr2_yuv_load_state( FILE *f );
241 /********************************* Renderer ******************************/
243 /**
244 * Render the current scene stored in PVR ram to the GL back buffer.
245 */
246 void pvr2_render_scene( render_buffer_t buffer );
248 /**
249 * Display the scene rendered to the supplied address.
250 * @return TRUE if there was an available render that was displayed,
251 * otherwise FALSE (and no action was taken)
252 */
253 gboolean pvr2_render_display_frame( uint32_t address );
256 void render_backplane( uint32_t *polygon, uint32_t width, uint32_t height, uint32_t mode );
258 void render_set_context( uint32_t *context, int render_mode );
260 void pvr2_render_tilebuffer( int width, int height, int clipx1, int clipy1,
261 int clipx2, int clipy2 );
263 float pvr2_render_find_maximum_z();
265 void pvr2_render_getsize( int *x, int *y );
267 /**
268 * Structure to hold a complete unpacked vertex (excluding modifier
269 * volume parameters - generate separate vertexes in that case).
270 */
271 struct vertex_unpacked {
272 float x,y,z;
273 float u,v; /* Texture coordinates */
274 float rgba[4]; /* Fragment colour (RGBA order) */
275 float offset_rgba[4]; /* Offset color (RGBA order) */
276 };
278 void render_unpack_quad( struct vertex_unpacked *unpacked, uint32_t poly1,
279 uint32_t *vertexes, int vertex_size,
280 int render_mode );
282 void render_unpack_vertexes( struct vertex_unpacked *out, uint32_t poly1,
283 uint32_t *vertexes, int num_vertexes,
284 int vertex_size, int render_mode );
286 void render_unpacked_vertex_array( uint32_t poly1, struct vertex_unpacked *vertexes[],
287 int num_vertexes );
289 void render_vertex_array( uint32_t poly1, uint32_t *vertexes[], int num_vertexes,
290 int vertex_size, int render_mode );
292 void render_tile( pvraddr_t tile_entry, int render_mode, gboolean cheap_modifier_mode );
294 void render_autosort_tile( pvraddr_t tile_entry, int render_mode, gboolean cheap_modifier_mode );
297 /****************************** Texture Cache ****************************/
299 /**
300 * Initialize the texture cache.
301 */
302 void texcache_init( void );
304 /**
305 * Initialize the GL side of the texture cache (texture ids and such).
306 */
307 void texcache_gl_init( void );
309 /**
310 * Flush all textures and delete. The cache will be non-functional until
311 * the next call to texcache_init(). This would typically be done if
312 * switching GL targets.
313 */
314 void texcache_shutdown( void );
316 /**
317 * Flush (ie free) all textures.
318 */
319 void texcache_flush( void );
321 /**
322 * Flush all palette-based textures (if any)
323 */
324 void texcache_invalidate_palette(void);
326 /**
327 * Evict all textures contained in the page identified by a texture address.
328 */
329 void texcache_invalidate_page( uint32_t texture_addr );
331 /**
332 * Return a texture ID for the texture specified at the supplied address
333 * and given parameters (the same sequence of bytes could in theory have
334 * multiple interpretations). We use the texture address as the primary
335 * index, but allow for multiple instances at each address. The texture
336 * will be bound to the GL_TEXTURE_2D target before being returned.
337 *
338 * If the texture has already been bound, return the ID to which it was
339 * bound. Otherwise obtain an unused texture ID and set it up appropriately.
340 */
341 GLuint texcache_get_texture( uint32_t texture_addr, int width, int height,
342 int mode );
344 void pvr2_check_palette_changed(void);
346 int pvr2_render_save_scene( const gchar *filename );
349 /************************* Rendering support macros **************************/
350 #define POLY1_DEPTH_MODE(poly1) ( pvr2_poly_depthmode[(poly1)>>29] )
351 #define POLY1_DEPTH_ENABLE(poly1) (((poly1)&0x04000000) == 0 )
352 #define POLY1_CULL_MODE(poly1) (((poly1)>>27)&0x03)
353 #define POLY1_TEXTURED(poly1) (((poly1)&0x02000000))
354 #define POLY1_SPECULAR(poly1) (((poly1)&0x01000000))
355 #define POLY1_GOURAUD_SHADED(poly1) ((poly1)&0x00800000)
356 #define POLY1_SHADE_MODEL(poly1) (((poly1)&0x00800000) ? GL_SMOOTH : GL_FLAT)
357 #define POLY1_UV16(poly1) (((poly1)&0x00400000))
358 #define POLY1_SINGLE_TILE(poly1) (((poly1)&0x00200000))
360 #define POLY2_SRC_BLEND(poly2) ( pvr2_poly_srcblend[(poly2) >> 29] )
361 #define POLY2_DEST_BLEND(poly2) ( pvr2_poly_dstblend[((poly2)>>26)&0x07] )
362 #define POLY2_SRC_BLEND_TARGET(poly2) ((poly2)&0x02000000)
363 #define POLY2_DEST_BLEND_TARGET(poly2) ((poly2)&0x01000000)
364 #define POLY2_FOG_MODE(poly2) ((poly2)&0x00C00000)
365 #define POLY2_COLOUR_CLAMP_ENABLE(poly2) ((poly2)&0x00200000)
366 #define POLY2_ALPHA_ENABLE(poly2) ((poly2)&0x00100000)
367 #define POLY2_TEX_ALPHA_ENABLE(poly2) (((poly2)&0x00080000) == 0 )
368 #define POLY2_TEX_CLAMP_U(poly2) ((poly2)&0x00010000)
369 #define POLY2_TEX_CLAMP_V(poly2) ((poly2)&0x00008000)
370 #define POLY2_TEX_WIDTH(poly2) ( 1<< ((((poly2) >> 3) & 0x07 ) + 3) )
371 #define POLY2_TEX_HEIGHT(poly2) ( 1<< (((poly2) & 0x07 ) + 3) )
372 #define POLY2_TEX_BLEND(poly2) (((poly2) >> 6)&0x03)
373 extern int pvr2_poly_depthmode[8];
374 extern int pvr2_poly_srcblend[8];
375 extern int pvr2_poly_dstblend[8];
376 extern int pvr2_poly_texblend[4];
377 extern int pvr2_render_colour_format[8];
379 float halftofloat(uint16_t half);
.