filename | src/pvr2/pvr2.h |
changeset | 432:0b761ef2dbfd |
prev | 429:e581b90c3fb3 |
next | 481:3b2d6c5a19ad |
author | nkeynes |
date | Wed Oct 31 09:10:23 2007 +0000 (16 years ago) |
permissions | -rw-r--r-- |
last change | Add save/restore of render buffers in save states Gzip memory blocks in save states Move front-buffer management back to pvr2 Add screenshot preview when loading save states Various minor fixes and cleanups |
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1 /**
2 * $Id: pvr2.h,v 1.37 2007-10-09 08:46:21 nkeynes Exp $
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 gboolean pvr2_save_next_scene( const gchar *filename );
70 #define PVR2_CMD_END_OF_LIST 0x00
71 #define PVR2_CMD_USER_CLIP 0x20
72 #define PVR2_CMD_POLY_OPAQUE 0x80
73 #define PVR2_CMD_MOD_OPAQUE 0x81
74 #define PVR2_CMD_POLY_TRANS 0x82
75 #define PVR2_CMD_MOD_TRANS 0x83
76 #define PVR2_CMD_POLY_PUNCHOUT 0x84
77 #define PVR2_CMD_VERTEX 0xE0
78 #define PVR2_CMD_VERTEX_LAST 0xF0
80 #define PVR2_POLY_TEXTURED 0x00000008
81 #define PVR2_POLY_SPECULAR 0x00000004
82 #define PVR2_POLY_SHADED 0x00000002
83 #define PVR2_POLY_UV_16BIT 0x00000001
85 #define PVR2_POLY_MODE_CLAMP_RGB 0x00200000
86 #define PVR2_POLY_MODE_ALPHA 0x00100000
87 #define PVR2_POLY_MODE_TEXALPHA 0x00080000
88 #define PVR2_POLY_MODE_FLIP_S 0x00040000
89 #define PVR2_POLY_MODE_FLIP_T 0x00020000
90 #define PVR2_POLY_MODE_CLAMP_S 0x00010000
91 #define PVR2_POLY_MODE_CLAMP_T 0x00008000
93 #define PVR2_POLY_FOG_LOOKUP 0x00000000
94 #define PVR2_POLY_FOG_VERTEX 0x00400000
95 #define PVR2_POLY_FOG_DISABLED 0x00800000
96 #define PVR2_POLY_FOG_LOOKUP2 0x00C00000
99 #define PVR2_TEX_FORMAT_ARGB1555 0x00000000
100 #define PVR2_TEX_FORMAT_RGB565 0x08000000
101 #define PVR2_TEX_FORMAT_ARGB4444 0x10000000
102 #define PVR2_TEX_FORMAT_YUV422 0x18000000
103 #define PVR2_TEX_FORMAT_BUMPMAP 0x20000000
104 #define PVR2_TEX_FORMAT_IDX4 0x28000000
105 #define PVR2_TEX_FORMAT_IDX8 0x30000000
107 #define PVR2_TEX_MIPMAP 0x80000000
108 #define PVR2_TEX_COMPRESSED 0x40000000
109 #define PVR2_TEX_FORMAT_MASK 0x38000000
110 #define PVR2_TEX_UNTWIDDLED 0x04000000
111 #define PVR2_TEX_STRIDE 0x02000000
112 #define PVR2_TEX_IS_PALETTE(mode) ( (mode & PVR2_TEX_FORMAT_MASK) == PVR2_TEX_FORMAT_IDX4 || (mode&PVR2_TEX_FORMAT_MASK) == PVR2_TEX_FORMAT_IDX8 )
115 #define PVR2_TEX_ADDR(x) ( ((x)&0x01FFFFF)<<3 );
116 #define PVR2_TEX_IS_MIPMAPPED(x) ( ((x) & 0x84000000) == 0x80000000 )
117 #define PVR2_TEX_IS_COMPRESSED(x) ( (x) & PVR2_TEX_COMPRESSED )
118 #define PVR2_TEX_IS_TWIDDLED(x) (((x) & PVR2_TEX_UNTWIDDLED) == 0)
119 #define PVR2_TEX_IS_STRIDE(x) (((x) & 0x06000000) == 0x06000000)
121 /****************************** Frame Buffer *****************************/
123 /**
124 * Write a block of data to an address in the DMA range (0x10000000 -
125 * 0x13FFFFFF), ie TA, YUV, or texture ram.
126 */
127 void pvr2_dma_write( sh4addr_t dest, unsigned char *src, uint32_t length );
129 /**
130 * Write to the interleaved memory address space (aka 64-bit address space).
131 */
132 void pvr2_vram64_write( sh4addr_t dest, unsigned char *src, uint32_t length );
134 /**
135 * Write to the interleaved memory address space (aka 64-bit address space),
136 * using a line length and stride.
137 */
138 void pvr2_vram64_write_stride( sh4addr_t dest, unsigned char *src, uint32_t line_bytes,
139 uint32_t line_stride_bytes, uint32_t line_count );
141 /**
142 * Read from the interleaved memory address space (aka 64-bit address space)
143 */
144 void pvr2_vram64_read( unsigned char *dest, sh4addr_t src, uint32_t length );
146 /**
147 * Read a twiddled image from interleaved memory address space (aka 64-bit address
148 * space), writing the image to the destination buffer in detwiddled format.
149 * Width and height must be powers of 2
150 * This version reads 4-bit pixels.
151 */
152 void pvr2_vram64_read_twiddled_4( unsigned char *dest, sh4addr_t src, uint32_t width, uint32_t height );
155 /**
156 * Read a twiddled image from interleaved memory address space (aka 64-bit address
157 * space), writing the image to the destination buffer in detwiddled format.
158 * Width and height must be powers of 2
159 * This version reads 8-bit pixels.
160 */
161 void pvr2_vram64_read_twiddled_8( unsigned char *dest, sh4addr_t src, uint32_t width, uint32_t height );
163 /**
164 * Read a twiddled image from interleaved memory address space (aka 64-bit address
165 * space), writing the image to the destination buffer in detwiddled format.
166 * Width and height must be powers of 2, and src must be 16-bit aligned.
167 * This version reads 16-bit pixels.
168 */
169 void pvr2_vram64_read_twiddled_16( unsigned char *dest, sh4addr_t src, uint32_t width, uint32_t height );
171 /**
172 * Read an image from the interleaved memory address space (aka 64-bit address space)
173 * where the source and destination line sizes may differ. Note that both byte
174 * counts must be a multiple of 4, and the src address must be 32-bit aligned.
175 */
176 void pvr2_vram64_read_stride( unsigned char *dest, uint32_t dest_line_bytes, sh4addr_t srcaddr,
177 uint32_t src_line_bytes, uint32_t line_count );
178 /**
179 * Dump a portion of vram to a stream from the interleaved memory address
180 * space.
181 */
182 void pvr2_vram64_dump( sh4addr_t addr, uint32_t length, FILE *f );
184 /**
185 * Flush the indicated render buffer back to PVR. Caller is responsible for
186 * tracking whether there is actually anything in the buffer.
187 *
188 * @param buffer A render buffer indicating the address to store to, and the
189 * format the data needs to be in.
190 * @param backBuffer TRUE to flush the back buffer, FALSE for
191 * the front buffer.
192 */
193 void pvr2_render_buffer_copy_to_sh4( render_buffer_t buffer );
195 /**
196 * Invalidate any caching on the supplied SH4 address
197 */
198 gboolean pvr2_render_buffer_invalidate( sh4addr_t addr, gboolean isWrite );
201 /**************************** Tile Accelerator ***************************/
202 /**
203 * Process the data in the supplied buffer as an array of TA command lists.
204 * Any excess bytes are held pending until a complete list is sent
205 */
206 void pvr2_ta_write( unsigned char *buf, uint32_t length );
209 /**
210 * (Re)initialize the tile accelerator in preparation for the next scene.
211 * Normally called immediately before commencing polygon transmission.
212 */
213 void pvr2_ta_init( void );
215 void pvr2_ta_reset( void );
217 void pvr2_ta_save_state( FILE *f );
219 int pvr2_ta_load_state( FILE *f );
221 /****************************** YUV Converter ****************************/
223 /**
224 * Process a block of YUV data.
225 */
226 void pvr2_yuv_write( unsigned char *buf, uint32_t length );
228 /**
229 * Initialize the YUV converter.
230 */
231 void pvr2_yuv_init( uint32_t target_addr );
233 void pvr2_yuv_set_config( uint32_t config );
235 void pvr2_yuv_save_state( FILE *f );
237 int pvr2_yuv_load_state( FILE *f );
239 /********************************* Renderer ******************************/
241 /**
242 * Render the current scene stored in PVR ram to the GL back buffer.
243 */
244 void pvr2_render_scene( render_buffer_t buffer );
246 /**
247 * Display the scene rendered to the supplied address.
248 * @return TRUE if there was an available render that was displayed,
249 * otherwise FALSE (and no action was taken)
250 */
251 gboolean pvr2_render_display_frame( uint32_t address );
254 void render_backplane( uint32_t *polygon, uint32_t width, uint32_t height, uint32_t mode );
256 void render_set_context( uint32_t *context, int render_mode );
258 void pvr2_render_tilebuffer( int width, int height, int clipx1, int clipy1,
259 int clipx2, int clipy2 );
261 float pvr2_render_find_maximum_z();
263 void pvr2_render_getsize( int *x, int *y );
265 /**
266 * Structure to hold a complete unpacked vertex (excluding modifier
267 * volume parameters - generate separate vertexes in that case).
268 */
269 struct vertex_unpacked {
270 float x,y,z;
271 float u,v; /* Texture coordinates */
272 float rgba[4]; /* Fragment colour (RGBA order) */
273 float offset_rgba[4]; /* Offset color (RGBA order) */
274 };
276 void render_unpack_quad( struct vertex_unpacked *unpacked, uint32_t poly1,
277 uint32_t *vertexes, int vertex_size,
278 int render_mode );
280 void render_unpack_vertexes( struct vertex_unpacked *out, uint32_t poly1,
281 uint32_t *vertexes, int num_vertexes,
282 int vertex_size, int render_mode );
284 void render_unpacked_vertex_array( uint32_t poly1, struct vertex_unpacked *vertexes[],
285 int num_vertexes );
287 void render_vertex_array( uint32_t poly1, uint32_t *vertexes[], int num_vertexes,
288 int vertex_size, int render_mode );
290 void render_tile( pvraddr_t tile_entry, int render_mode, gboolean cheap_modifier_mode );
292 void render_autosort_tile( pvraddr_t tile_entry, int render_mode, gboolean cheap_modifier_mode );
295 /****************************** Texture Cache ****************************/
297 /**
298 * Initialize the texture cache.
299 */
300 void texcache_init( void );
302 /**
303 * Initialize the GL side of the texture cache (texture ids and such).
304 */
305 void texcache_gl_init( void );
307 /**
308 * Flush all textures and delete. The cache will be non-functional until
309 * the next call to texcache_init(). This would typically be done if
310 * switching GL targets.
311 */
312 void texcache_shutdown( void );
314 /**
315 * Flush (ie free) all textures.
316 */
317 void texcache_flush( void );
319 /**
320 * Flush all palette-based textures (if any)
321 */
322 void texcache_invalidate_palette(void);
324 /**
325 * Evict all textures contained in the page identified by a texture address.
326 */
327 void texcache_invalidate_page( uint32_t texture_addr );
329 /**
330 * Return a texture ID for the texture specified at the supplied address
331 * and given parameters (the same sequence of bytes could in theory have
332 * multiple interpretations). We use the texture address as the primary
333 * index, but allow for multiple instances at each address. The texture
334 * will be bound to the GL_TEXTURE_2D target before being returned.
335 *
336 * If the texture has already been bound, return the ID to which it was
337 * bound. Otherwise obtain an unused texture ID and set it up appropriately.
338 */
339 GLuint texcache_get_texture( uint32_t texture_addr, int width, int height,
340 int mode );
342 void pvr2_check_palette_changed(void);
344 int pvr2_render_save_scene( const gchar *filename );
347 /************************* Rendering support macros **************************/
348 #define POLY1_DEPTH_MODE(poly1) ( pvr2_poly_depthmode[(poly1)>>29] )
349 #define POLY1_DEPTH_ENABLE(poly1) (((poly1)&0x04000000) == 0 )
350 #define POLY1_CULL_MODE(poly1) (((poly1)>>27)&0x03)
351 #define POLY1_TEXTURED(poly1) (((poly1)&0x02000000))
352 #define POLY1_SPECULAR(poly1) (((poly1)&0x01000000))
353 #define POLY1_GOURAUD_SHADED(poly1) ((poly1)&0x00800000)
354 #define POLY1_SHADE_MODEL(poly1) (((poly1)&0x00800000) ? GL_SMOOTH : GL_FLAT)
355 #define POLY1_UV16(poly1) (((poly1)&0x00400000))
356 #define POLY1_SINGLE_TILE(poly1) (((poly1)&0x00200000))
358 #define POLY2_SRC_BLEND(poly2) ( pvr2_poly_srcblend[(poly2) >> 29] )
359 #define POLY2_DEST_BLEND(poly2) ( pvr2_poly_dstblend[((poly2)>>26)&0x07] )
360 #define POLY2_SRC_BLEND_TARGET(poly2) ((poly2)&0x02000000)
361 #define POLY2_DEST_BLEND_TARGET(poly2) ((poly2)&0x01000000)
362 #define POLY2_FOG_MODE(poly2) ((poly2)&0x00C00000)
363 #define POLY2_COLOUR_CLAMP_ENABLE(poly2) ((poly2)&0x00200000)
364 #define POLY2_ALPHA_ENABLE(poly2) ((poly2)&0x00100000)
365 #define POLY2_TEX_ALPHA_ENABLE(poly2) (((poly2)&0x00080000) == 0 )
366 #define POLY2_TEX_CLAMP_U(poly2) ((poly2)&0x00010000)
367 #define POLY2_TEX_CLAMP_V(poly2) ((poly2)&0x00008000)
368 #define POLY2_TEX_WIDTH(poly2) ( 1<< ((((poly2) >> 3) & 0x07 ) + 3) )
369 #define POLY2_TEX_HEIGHT(poly2) ( 1<< (((poly2) & 0x07 ) + 3) )
370 #define POLY2_TEX_BLEND(poly2) (((poly2) >> 6)&0x03)
371 extern int pvr2_poly_depthmode[8];
372 extern int pvr2_poly_srcblend[8];
373 extern int pvr2_poly_dstblend[8];
374 extern int pvr2_poly_texblend[4];
375 extern int pvr2_render_colour_format[8];
377 float halftofloat(uint16_t half);
.