filename | src/pvr2/pvr2.c |
changeset | 1076:18c164e8aec4 |
prev | 1067:d3c00ffccfcd |
next | 1080:5b17c9900d9e |
author | nkeynes |
date | Mon Aug 03 08:41:11 2009 +1000 (14 years ago) |
permissions | -rw-r--r-- |
last change | Rearrange frame output slightly. pvr2_display_frame renamed to pvr2_next_frame and changed to update the frame data without displaying it. pvr2_redraw_display renamed to pvr2_draw_frame, called internally after pvr2_next_frame Add swap_buffers() method to the display driver Remove explicit glDrawBuffer() calls where they're referencing the window. pvr2_draw_frame now gets to decide where to draw. Add force_vsync flag to force double-buffering (not configurable yet) |
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nkeynes@31 | 1 | /** |
nkeynes@586 | 2 | * $Id$ |
nkeynes@31 | 3 | * |
nkeynes@133 | 4 | * PVR2 (Video) Core module implementation and MMIO registers. |
nkeynes@31 | 5 | * |
nkeynes@31 | 6 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@31 | 7 | * |
nkeynes@31 | 8 | * This program is free software; you can redistribute it and/or modify |
nkeynes@31 | 9 | * it under the terms of the GNU General Public License as published by |
nkeynes@31 | 10 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@31 | 11 | * (at your option) any later version. |
nkeynes@31 | 12 | * |
nkeynes@31 | 13 | * This program is distributed in the hope that it will be useful, |
nkeynes@31 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@31 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@31 | 16 | * GNU General Public License for more details. |
nkeynes@31 | 17 | */ |
nkeynes@35 | 18 | #define MODULE pvr2_module |
nkeynes@31 | 19 | |
nkeynes@477 | 20 | #include <assert.h> |
nkeynes@1 | 21 | #include "dream.h" |
nkeynes@265 | 22 | #include "eventq.h" |
nkeynes@144 | 23 | #include "display.h" |
nkeynes@1 | 24 | #include "mem.h" |
nkeynes@1 | 25 | #include "asic.h" |
nkeynes@261 | 26 | #include "clock.h" |
nkeynes@103 | 27 | #include "pvr2/pvr2.h" |
nkeynes@677 | 28 | #include "pvr2/pvr2mmio.h" |
nkeynes@669 | 29 | #include "pvr2/scene.h" |
nkeynes@586 | 30 | #include "sh4/sh4.h" |
nkeynes@1 | 31 | #define MMIO_IMPL |
nkeynes@103 | 32 | #include "pvr2/pvr2mmio.h" |
nkeynes@1 | 33 | |
nkeynes@352 | 34 | #define MAX_RENDER_BUFFERS 4 |
nkeynes@352 | 35 | |
nkeynes@304 | 36 | #define HPOS_PER_FRAME 0 |
nkeynes@304 | 37 | #define HPOS_PER_LINECOUNT 1 |
nkeynes@304 | 38 | |
nkeynes@133 | 39 | static void pvr2_init( void ); |
nkeynes@133 | 40 | static void pvr2_reset( void ); |
nkeynes@133 | 41 | static uint32_t pvr2_run_slice( uint32_t ); |
nkeynes@133 | 42 | static void pvr2_save_state( FILE *f ); |
nkeynes@133 | 43 | static int pvr2_load_state( FILE *f ); |
nkeynes@265 | 44 | static void pvr2_update_raster_posn( uint32_t nanosecs ); |
nkeynes@304 | 45 | static void pvr2_schedule_scanline_event( int eventid, int line, int minimum_lines, int line_time_ns ); |
nkeynes@352 | 46 | static render_buffer_t pvr2_get_render_buffer( frame_buffer_t frame ); |
nkeynes@352 | 47 | static render_buffer_t pvr2_next_render_buffer( ); |
nkeynes@477 | 48 | static render_buffer_t pvr2_frame_buffer_to_render_buffer( frame_buffer_t frame ); |
nkeynes@265 | 49 | uint32_t pvr2_get_sync_status(); |
nkeynes@1076 | 50 | static gboolean force_vsync = FALSE; |
nkeynes@477 | 51 | static int output_colour_formats[] = { COLFMT_BGRA1555, COLFMT_RGB565, COLFMT_BGR888, COLFMT_BGRA8888 }; |
nkeynes@856 | 52 | static int render_colour_formats[8] = { |
nkeynes@856 | 53 | COLFMT_BGRA1555, COLFMT_RGB565, COLFMT_BGRA4444, COLFMT_BGRA1555, |
nkeynes@856 | 54 | COLFMT_BGR888, COLFMT_BGRA8888, COLFMT_BGRA8888, COLFMT_BGRA4444 }; |
nkeynes@856 | 55 | |
nkeynes@161 | 56 | |
nkeynes@133 | 57 | struct dreamcast_module pvr2_module = { "PVR2", pvr2_init, pvr2_reset, NULL, |
nkeynes@736 | 58 | pvr2_run_slice, NULL, |
nkeynes@736 | 59 | pvr2_save_state, pvr2_load_state }; |
nkeynes@133 | 60 | |
nkeynes@103 | 61 | |
nkeynes@144 | 62 | display_driver_t display_driver = NULL; |
nkeynes@15 | 63 | |
nkeynes@133 | 64 | struct pvr2_state { |
nkeynes@133 | 65 | uint32_t frame_count; |
nkeynes@133 | 66 | uint32_t line_count; |
nkeynes@133 | 67 | uint32_t line_remainder; |
nkeynes@265 | 68 | uint32_t cycles_run; /* Cycles already executed prior to main time slice */ |
nkeynes@304 | 69 | uint32_t irq_hpos_line; |
nkeynes@304 | 70 | uint32_t irq_hpos_line_count; |
nkeynes@304 | 71 | uint32_t irq_hpos_mode; |
nkeynes@304 | 72 | uint32_t irq_hpos_time_ns; /* Time within the line */ |
nkeynes@133 | 73 | uint32_t irq_vpos1; |
nkeynes@133 | 74 | uint32_t irq_vpos2; |
nkeynes@261 | 75 | uint32_t odd_even_field; /* 1 = odd, 0 = even */ |
nkeynes@674 | 76 | int32_t palette_changed; /* TRUE if palette has changed since last render */ |
nkeynes@261 | 77 | /* timing */ |
nkeynes@261 | 78 | uint32_t dot_clock; |
nkeynes@261 | 79 | uint32_t total_lines; |
nkeynes@261 | 80 | uint32_t line_size; |
nkeynes@261 | 81 | uint32_t line_time_ns; |
nkeynes@261 | 82 | uint32_t vsync_lines; |
nkeynes@261 | 83 | uint32_t hsync_width_ns; |
nkeynes@261 | 84 | uint32_t front_porch_ns; |
nkeynes@261 | 85 | uint32_t back_porch_ns; |
nkeynes@265 | 86 | uint32_t retrace_start_line; |
nkeynes@265 | 87 | uint32_t retrace_end_line; |
nkeynes@674 | 88 | int32_t interlaced; |
nkeynes@133 | 89 | } pvr2_state; |
nkeynes@15 | 90 | |
nkeynes@674 | 91 | static gchar *save_next_render_filename; |
nkeynes@441 | 92 | static render_buffer_t render_buffers[MAX_RENDER_BUFFERS]; |
nkeynes@674 | 93 | static uint32_t render_buffer_count = 0; |
nkeynes@441 | 94 | static render_buffer_t displayed_render_buffer = NULL; |
nkeynes@545 | 95 | static uint32_t displayed_border_colour = 0; |
nkeynes@133 | 96 | |
nkeynes@265 | 97 | /** |
nkeynes@304 | 98 | * Event handler for the hpos callback |
nkeynes@265 | 99 | */ |
nkeynes@304 | 100 | static void pvr2_hpos_callback( int eventid ) { |
nkeynes@265 | 101 | asic_event( eventid ); |
nkeynes@265 | 102 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@304 | 103 | if( pvr2_state.irq_hpos_mode == HPOS_PER_LINECOUNT ) { |
nkeynes@736 | 104 | pvr2_state.irq_hpos_line += pvr2_state.irq_hpos_line_count; |
nkeynes@736 | 105 | while( pvr2_state.irq_hpos_line > (pvr2_state.total_lines>>1) ) { |
nkeynes@736 | 106 | pvr2_state.irq_hpos_line -= (pvr2_state.total_lines>>1); |
nkeynes@736 | 107 | } |
nkeynes@304 | 108 | } |
nkeynes@304 | 109 | pvr2_schedule_scanline_event( eventid, pvr2_state.irq_hpos_line, 1, |
nkeynes@736 | 110 | pvr2_state.irq_hpos_time_ns ); |
nkeynes@265 | 111 | } |
nkeynes@265 | 112 | |
nkeynes@265 | 113 | /** |
nkeynes@265 | 114 | * Event handler for the scanline callbacks. Fires the corresponding |
nkeynes@265 | 115 | * ASIC event, and resets the timer for the next field. |
nkeynes@265 | 116 | */ |
nkeynes@850 | 117 | static void pvr2_scanline_callback( int eventid ) |
nkeynes@850 | 118 | { |
nkeynes@265 | 119 | asic_event( eventid ); |
nkeynes@265 | 120 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@265 | 121 | if( eventid == EVENT_SCANLINE1 ) { |
nkeynes@736 | 122 | pvr2_schedule_scanline_event( eventid, pvr2_state.irq_vpos1, 1, 0 ); |
nkeynes@265 | 123 | } else { |
nkeynes@736 | 124 | pvr2_schedule_scanline_event( eventid, pvr2_state.irq_vpos2, 1, 0 ); |
nkeynes@265 | 125 | } |
nkeynes@265 | 126 | } |
nkeynes@265 | 127 | |
nkeynes@850 | 128 | static void pvr2_gunpos_callback( int eventid ) |
nkeynes@850 | 129 | { |
nkeynes@850 | 130 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@850 | 131 | int hpos = pvr2_state.line_remainder * pvr2_state.dot_clock / 1000000; |
nkeynes@850 | 132 | MMIO_WRITE( PVR2, GUNPOS, ((pvr2_state.line_count<<16)|(hpos&0x3FF)) ); |
nkeynes@850 | 133 | asic_event( EVENT_MAPLE_DMA ); |
nkeynes@850 | 134 | } |
nkeynes@850 | 135 | |
nkeynes@133 | 136 | static void pvr2_init( void ) |
nkeynes@1 | 137 | { |
nkeynes@352 | 138 | int i; |
nkeynes@1 | 139 | register_io_region( &mmio_region_PVR2 ); |
nkeynes@85 | 140 | register_io_region( &mmio_region_PVR2PAL ); |
nkeynes@304 | 141 | register_event_callback( EVENT_HPOS, pvr2_hpos_callback ); |
nkeynes@265 | 142 | register_event_callback( EVENT_SCANLINE1, pvr2_scanline_callback ); |
nkeynes@265 | 143 | register_event_callback( EVENT_SCANLINE2, pvr2_scanline_callback ); |
nkeynes@850 | 144 | register_event_callback( EVENT_GUNPOS, pvr2_gunpos_callback ); |
nkeynes@133 | 145 | texcache_init(); |
nkeynes@133 | 146 | pvr2_reset(); |
nkeynes@214 | 147 | pvr2_ta_reset(); |
nkeynes@674 | 148 | save_next_render_filename = NULL; |
nkeynes@352 | 149 | for( i=0; i<MAX_RENDER_BUFFERS; i++ ) { |
nkeynes@736 | 150 | render_buffers[i] = NULL; |
nkeynes@352 | 151 | } |
nkeynes@352 | 152 | render_buffer_count = 0; |
nkeynes@441 | 153 | displayed_render_buffer = NULL; |
nkeynes@545 | 154 | displayed_border_colour = 0; |
nkeynes@133 | 155 | } |
nkeynes@133 | 156 | |
nkeynes@133 | 157 | static void pvr2_reset( void ) |
nkeynes@133 | 158 | { |
nkeynes@477 | 159 | int i; |
nkeynes@133 | 160 | pvr2_state.line_count = 0; |
nkeynes@133 | 161 | pvr2_state.line_remainder = 0; |
nkeynes@265 | 162 | pvr2_state.cycles_run = 0; |
nkeynes@133 | 163 | pvr2_state.irq_vpos1 = 0; |
nkeynes@133 | 164 | pvr2_state.irq_vpos2 = 0; |
nkeynes@265 | 165 | pvr2_state.dot_clock = PVR2_DOT_CLOCK; |
nkeynes@265 | 166 | pvr2_state.back_porch_ns = 4000; |
nkeynes@337 | 167 | pvr2_state.palette_changed = FALSE; |
nkeynes@265 | 168 | mmio_region_PVR2_write( DISP_TOTAL, 0x0270035F ); |
nkeynes@265 | 169 | mmio_region_PVR2_write( DISP_SYNCTIME, 0x07D6A53F ); |
nkeynes@284 | 170 | mmio_region_PVR2_write( YUV_ADDR, 0 ); |
nkeynes@284 | 171 | mmio_region_PVR2_write( YUV_CFG, 0 ); |
nkeynes@736 | 172 | |
nkeynes@133 | 173 | pvr2_ta_init(); |
nkeynes@133 | 174 | texcache_flush(); |
nkeynes@477 | 175 | if( display_driver ) { |
nkeynes@736 | 176 | display_driver->display_blank(0); |
nkeynes@736 | 177 | for( i=0; i<render_buffer_count; i++ ) { |
nkeynes@736 | 178 | display_driver->destroy_render_buffer(render_buffers[i]); |
nkeynes@736 | 179 | render_buffers[i] = NULL; |
nkeynes@736 | 180 | } |
nkeynes@736 | 181 | render_buffer_count = 0; |
nkeynes@477 | 182 | } |
nkeynes@133 | 183 | } |
nkeynes@133 | 184 | |
nkeynes@477 | 185 | void pvr2_save_render_buffer( FILE *f, render_buffer_t buffer ) |
nkeynes@477 | 186 | { |
nkeynes@477 | 187 | struct frame_buffer fbuf; |
nkeynes@477 | 188 | |
nkeynes@477 | 189 | fbuf.width = buffer->width; |
nkeynes@477 | 190 | fbuf.height = buffer->height; |
nkeynes@477 | 191 | fbuf.rowstride = fbuf.width*3; |
nkeynes@477 | 192 | fbuf.colour_format = COLFMT_BGR888; |
nkeynes@477 | 193 | fbuf.inverted = buffer->inverted; |
nkeynes@477 | 194 | fbuf.data = g_malloc0( buffer->width * buffer->height * 3 ); |
nkeynes@736 | 195 | |
nkeynes@477 | 196 | display_driver->read_render_buffer( fbuf.data, buffer, fbuf.rowstride, COLFMT_BGR888 ); |
nkeynes@477 | 197 | write_png_to_stream( f, &fbuf ); |
nkeynes@477 | 198 | g_free( fbuf.data ); |
nkeynes@477 | 199 | |
nkeynes@477 | 200 | fwrite( &buffer->rowstride, sizeof(buffer->rowstride), 1, f ); |
nkeynes@477 | 201 | fwrite( &buffer->colour_format, sizeof(buffer->colour_format), 1, f ); |
nkeynes@477 | 202 | fwrite( &buffer->address, sizeof(buffer->address), 1, f ); |
nkeynes@477 | 203 | fwrite( &buffer->scale, sizeof(buffer->scale), 1, f ); |
nkeynes@674 | 204 | int32_t flushed = (int32_t)buffer->flushed; // Force to 32-bits for save-file consistency |
nkeynes@674 | 205 | fwrite( &flushed, sizeof(flushed), 1, f ); |
nkeynes@736 | 206 | |
nkeynes@477 | 207 | } |
nkeynes@477 | 208 | |
nkeynes@890 | 209 | render_buffer_t pvr2_load_render_buffer( FILE *f, gboolean *status ) |
nkeynes@477 | 210 | { |
nkeynes@477 | 211 | frame_buffer_t frame = read_png_from_stream( f ); |
nkeynes@477 | 212 | if( frame == NULL ) { |
nkeynes@890 | 213 | *status = FALSE; |
nkeynes@736 | 214 | return NULL; |
nkeynes@477 | 215 | } |
nkeynes@890 | 216 | *status = TRUE; |
nkeynes@477 | 217 | |
nkeynes@477 | 218 | render_buffer_t buffer = pvr2_frame_buffer_to_render_buffer(frame); |
nkeynes@653 | 219 | if( buffer != NULL ) { |
nkeynes@674 | 220 | int32_t flushed; |
nkeynes@736 | 221 | fread( &buffer->rowstride, sizeof(buffer->rowstride), 1, f ); |
nkeynes@736 | 222 | fread( &buffer->colour_format, sizeof(buffer->colour_format), 1, f ); |
nkeynes@736 | 223 | fread( &buffer->address, sizeof(buffer->address), 1, f ); |
nkeynes@736 | 224 | fread( &buffer->scale, sizeof(buffer->scale), 1, f ); |
nkeynes@736 | 225 | fread( &flushed, sizeof(flushed), 1, f ); |
nkeynes@736 | 226 | buffer->flushed = (gboolean)flushed; |
nkeynes@653 | 227 | } else { |
nkeynes@736 | 228 | fseek( f, sizeof(buffer->rowstride)+sizeof(buffer->colour_format)+ |
nkeynes@736 | 229 | sizeof(buffer->address)+sizeof(buffer->scale)+ |
nkeynes@736 | 230 | sizeof(int32_t), SEEK_CUR ); |
nkeynes@653 | 231 | } |
nkeynes@477 | 232 | return buffer; |
nkeynes@477 | 233 | } |
nkeynes@477 | 234 | |
nkeynes@477 | 235 | |
nkeynes@477 | 236 | |
nkeynes@477 | 237 | |
nkeynes@477 | 238 | void pvr2_save_render_buffers( FILE *f ) |
nkeynes@477 | 239 | { |
nkeynes@477 | 240 | int i; |
nkeynes@674 | 241 | uint32_t has_frontbuffer; |
nkeynes@477 | 242 | fwrite( &render_buffer_count, sizeof(render_buffer_count), 1, f ); |
nkeynes@477 | 243 | if( displayed_render_buffer != NULL ) { |
nkeynes@736 | 244 | has_frontbuffer = 1; |
nkeynes@736 | 245 | fwrite( &has_frontbuffer, sizeof(has_frontbuffer), 1, f ); |
nkeynes@736 | 246 | pvr2_save_render_buffer( f, displayed_render_buffer ); |
nkeynes@477 | 247 | } else { |
nkeynes@736 | 248 | has_frontbuffer = 0; |
nkeynes@736 | 249 | fwrite( &has_frontbuffer, sizeof(has_frontbuffer), 1, f ); |
nkeynes@477 | 250 | } |
nkeynes@477 | 251 | |
nkeynes@477 | 252 | for( i=0; i<render_buffer_count; i++ ) { |
nkeynes@736 | 253 | if( render_buffers[i] != displayed_render_buffer && render_buffers[i] != NULL ) { |
nkeynes@736 | 254 | pvr2_save_render_buffer( f, render_buffers[i] ); |
nkeynes@736 | 255 | } |
nkeynes@477 | 256 | } |
nkeynes@477 | 257 | } |
nkeynes@477 | 258 | |
nkeynes@477 | 259 | gboolean pvr2_load_render_buffers( FILE *f ) |
nkeynes@477 | 260 | { |
nkeynes@674 | 261 | uint32_t count, has_frontbuffer; |
nkeynes@890 | 262 | gboolean loadok; |
nkeynes@674 | 263 | int i; |
nkeynes@477 | 264 | |
nkeynes@477 | 265 | fread( &count, sizeof(count), 1, f ); |
nkeynes@511 | 266 | if( count > MAX_RENDER_BUFFERS ) { |
nkeynes@736 | 267 | return FALSE; |
nkeynes@477 | 268 | } |
nkeynes@477 | 269 | fread( &has_frontbuffer, sizeof(has_frontbuffer), 1, f ); |
nkeynes@477 | 270 | for( i=0; i<render_buffer_count; i++ ) { |
nkeynes@736 | 271 | display_driver->destroy_render_buffer(render_buffers[i]); |
nkeynes@736 | 272 | render_buffers[i] = NULL; |
nkeynes@477 | 273 | } |
nkeynes@477 | 274 | render_buffer_count = 0; |
nkeynes@477 | 275 | |
nkeynes@477 | 276 | if( has_frontbuffer ) { |
nkeynes@890 | 277 | displayed_render_buffer = pvr2_load_render_buffer(f, &loadok); |
nkeynes@890 | 278 | if( displayed_render_buffer != NULL ) |
nkeynes@890 | 279 | display_driver->display_render_buffer( displayed_render_buffer ); |
nkeynes@890 | 280 | else if( !loadok ) |
nkeynes@890 | 281 | return FALSE; |
nkeynes@736 | 282 | count--; |
nkeynes@477 | 283 | } |
nkeynes@477 | 284 | |
nkeynes@477 | 285 | for( i=0; i<count; i++ ) { |
nkeynes@890 | 286 | pvr2_load_render_buffer( f, &loadok ); |
nkeynes@890 | 287 | if( !loadok ) |
nkeynes@867 | 288 | return FALSE; |
nkeynes@477 | 289 | } |
nkeynes@477 | 290 | return TRUE; |
nkeynes@477 | 291 | } |
nkeynes@736 | 292 | |
nkeynes@477 | 293 | |
nkeynes@133 | 294 | static void pvr2_save_state( FILE *f ) |
nkeynes@133 | 295 | { |
nkeynes@477 | 296 | pvr2_save_render_buffers( f ); |
nkeynes@133 | 297 | fwrite( &pvr2_state, sizeof(pvr2_state), 1, f ); |
nkeynes@193 | 298 | pvr2_ta_save_state( f ); |
nkeynes@295 | 299 | pvr2_yuv_save_state( f ); |
nkeynes@133 | 300 | } |
nkeynes@133 | 301 | |
nkeynes@133 | 302 | static int pvr2_load_state( FILE *f ) |
nkeynes@133 | 303 | { |
nkeynes@477 | 304 | if( !pvr2_load_render_buffers(f) ) |
nkeynes@736 | 305 | return 1; |
nkeynes@153 | 306 | if( fread( &pvr2_state, sizeof(pvr2_state), 1, f ) != 1 ) |
nkeynes@736 | 307 | return 1; |
nkeynes@295 | 308 | if( pvr2_ta_load_state(f) ) { |
nkeynes@736 | 309 | return 1; |
nkeynes@295 | 310 | } |
nkeynes@295 | 311 | return pvr2_yuv_load_state(f); |
nkeynes@133 | 312 | } |
nkeynes@133 | 313 | |
nkeynes@265 | 314 | /** |
nkeynes@265 | 315 | * Update the current raster position to the given number of nanoseconds, |
nkeynes@265 | 316 | * relative to the last time slice. (ie the raster will be adjusted forward |
nkeynes@265 | 317 | * by nanosecs - nanosecs_already_run_this_timeslice) |
nkeynes@265 | 318 | */ |
nkeynes@265 | 319 | static void pvr2_update_raster_posn( uint32_t nanosecs ) |
nkeynes@265 | 320 | { |
nkeynes@265 | 321 | uint32_t old_line_count = pvr2_state.line_count; |
nkeynes@265 | 322 | if( pvr2_state.line_time_ns == 0 ) { |
nkeynes@736 | 323 | return; /* do nothing */ |
nkeynes@265 | 324 | } |
nkeynes@265 | 325 | pvr2_state.line_remainder += (nanosecs - pvr2_state.cycles_run); |
nkeynes@265 | 326 | pvr2_state.cycles_run = nanosecs; |
nkeynes@265 | 327 | while( pvr2_state.line_remainder >= pvr2_state.line_time_ns ) { |
nkeynes@736 | 328 | pvr2_state.line_count ++; |
nkeynes@736 | 329 | pvr2_state.line_remainder -= pvr2_state.line_time_ns; |
nkeynes@265 | 330 | } |
nkeynes@265 | 331 | |
nkeynes@265 | 332 | if( pvr2_state.line_count >= pvr2_state.total_lines ) { |
nkeynes@736 | 333 | pvr2_state.line_count -= pvr2_state.total_lines; |
nkeynes@736 | 334 | if( pvr2_state.interlaced ) { |
nkeynes@736 | 335 | pvr2_state.odd_even_field = !pvr2_state.odd_even_field; |
nkeynes@736 | 336 | } |
nkeynes@265 | 337 | } |
nkeynes@265 | 338 | if( pvr2_state.line_count >= pvr2_state.retrace_end_line && |
nkeynes@736 | 339 | (old_line_count < pvr2_state.retrace_end_line || |
nkeynes@736 | 340 | old_line_count > pvr2_state.line_count) ) { |
nkeynes@736 | 341 | pvr2_state.frame_count++; |
nkeynes@1076 | 342 | pvr2_next_frame(); |
nkeynes@1076 | 343 | pvr2_draw_frame(); |
nkeynes@265 | 344 | } |
nkeynes@265 | 345 | } |
nkeynes@265 | 346 | |
nkeynes@133 | 347 | static uint32_t pvr2_run_slice( uint32_t nanosecs ) |
nkeynes@133 | 348 | { |
nkeynes@265 | 349 | pvr2_update_raster_posn( nanosecs ); |
nkeynes@265 | 350 | pvr2_state.cycles_run = 0; |
nkeynes@133 | 351 | return nanosecs; |
nkeynes@133 | 352 | } |
nkeynes@133 | 353 | |
nkeynes@133 | 354 | int pvr2_get_frame_count() |
nkeynes@133 | 355 | { |
nkeynes@133 | 356 | return pvr2_state.frame_count; |
nkeynes@106 | 357 | } |
nkeynes@106 | 358 | |
nkeynes@1076 | 359 | /** |
nkeynes@1076 | 360 | * Draw the base (emulated) frame only. |
nkeynes@1076 | 361 | */ |
nkeynes@1076 | 362 | static void pvr2_draw_base_frame() |
nkeynes@1076 | 363 | { |
nkeynes@1076 | 364 | if( displayed_render_buffer == NULL ) { |
nkeynes@1076 | 365 | display_driver->display_blank(displayed_border_colour); |
nkeynes@1076 | 366 | } else { |
nkeynes@1076 | 367 | display_driver->display_render_buffer(displayed_render_buffer); |
nkeynes@1076 | 368 | } |
nkeynes@1076 | 369 | } |
nkeynes@1076 | 370 | |
nkeynes@1076 | 371 | void pvr2_draw_frame() |
nkeynes@477 | 372 | { |
nkeynes@677 | 373 | if( display_driver != NULL ) { |
nkeynes@1076 | 374 | if( force_vsync ) { |
nkeynes@1076 | 375 | glDrawBuffer( GL_BACK ); |
nkeynes@1076 | 376 | pvr2_draw_base_frame(); |
nkeynes@1076 | 377 | display_driver->swap_buffers(); |
nkeynes@677 | 378 | } else { |
nkeynes@1076 | 379 | glDrawBuffer( GL_FRONT ); |
nkeynes@1076 | 380 | pvr2_draw_base_frame(); |
nkeynes@677 | 381 | } |
nkeynes@677 | 382 | } |
nkeynes@545 | 383 | } |
nkeynes@545 | 384 | |
nkeynes@295 | 385 | gboolean pvr2_save_next_scene( const gchar *filename ) |
nkeynes@295 | 386 | { |
nkeynes@674 | 387 | if( save_next_render_filename != NULL ) { |
nkeynes@736 | 388 | g_free( save_next_render_filename ); |
nkeynes@295 | 389 | } |
nkeynes@674 | 390 | save_next_render_filename = g_strdup(filename); |
nkeynes@295 | 391 | return TRUE; |
nkeynes@295 | 392 | } |
nkeynes@295 | 393 | |
nkeynes@295 | 394 | |
nkeynes@295 | 395 | |
nkeynes@103 | 396 | /** |
nkeynes@1076 | 397 | * Advance to the next frame, copying the current contents of video ram to |
nkeynes@1 | 398 | * the window. If the video configuration has changed, first recompute the |
nkeynes@1 | 399 | * new frame size/depth. |
nkeynes@1 | 400 | */ |
nkeynes@1076 | 401 | void pvr2_next_frame( void ) |
nkeynes@1 | 402 | { |
nkeynes@197 | 403 | int dispmode = MMIO_READ( PVR2, DISP_MODE ); |
nkeynes@261 | 404 | int vidcfg = MMIO_READ( PVR2, DISP_SYNCCFG ); |
nkeynes@335 | 405 | gboolean bEnabled = (dispmode & DISPMODE_ENABLE) && (vidcfg & DISPCFG_VO ) ? TRUE : FALSE; |
nkeynes@352 | 406 | |
nkeynes@1076 | 407 | if( !bEnabled ) { |
nkeynes@736 | 408 | /* Output disabled == black */ |
nkeynes@736 | 409 | displayed_render_buffer = NULL; |
nkeynes@736 | 410 | displayed_border_colour = 0; |
nkeynes@352 | 411 | } else if( MMIO_READ( PVR2, DISP_CFG2 ) & 0x08 ) { |
nkeynes@736 | 412 | /* Enabled but blanked - border colour */ |
nkeynes@736 | 413 | displayed_border_colour = MMIO_READ( PVR2, DISP_BORDER ); |
nkeynes@736 | 414 | displayed_render_buffer = NULL; |
nkeynes@352 | 415 | } else { |
nkeynes@736 | 416 | /* Real output - determine dimensions etc */ |
nkeynes@736 | 417 | struct frame_buffer fbuf; |
nkeynes@736 | 418 | uint32_t dispsize = MMIO_READ( PVR2, DISP_SIZE ); |
nkeynes@736 | 419 | int vid_stride = (((dispsize & DISPSIZE_MODULO) >> 20) - 1); |
nkeynes@736 | 420 | int vid_ppl = ((dispsize & DISPSIZE_PPL)) + 1; |
nkeynes@352 | 421 | |
nkeynes@736 | 422 | fbuf.colour_format = output_colour_formats[(dispmode & DISPMODE_COLFMT) >> 2]; |
nkeynes@916 | 423 | fbuf.width = (vid_ppl << 2) / colour_formats[fbuf.colour_format].bpp; |
nkeynes@736 | 424 | fbuf.height = ((dispsize & DISPSIZE_LPF) >> 10) + 1; |
nkeynes@916 | 425 | fbuf.size = (vid_ppl << 2) * fbuf.height; |
nkeynes@736 | 426 | fbuf.rowstride = (vid_ppl + vid_stride) << 2; |
nkeynes@352 | 427 | |
nkeynes@736 | 428 | /* Determine the field to display, and deinterlace if possible */ |
nkeynes@736 | 429 | if( pvr2_state.interlaced ) { |
nkeynes@736 | 430 | if( vid_ppl == vid_stride ) { /* Magic deinterlace */ |
nkeynes@736 | 431 | fbuf.height = fbuf.height << 1; |
nkeynes@736 | 432 | fbuf.rowstride = vid_ppl << 2; |
nkeynes@736 | 433 | fbuf.address = MMIO_READ( PVR2, DISP_ADDR1 ); |
nkeynes@736 | 434 | } else { |
nkeynes@736 | 435 | /* Just display the field as is, folks. This is slightly tricky - |
nkeynes@736 | 436 | * we pick the field based on which frame is about to come through, |
nkeynes@736 | 437 | * which may not be the same as the odd_even_field. |
nkeynes@736 | 438 | */ |
nkeynes@736 | 439 | gboolean oddfield = pvr2_state.odd_even_field; |
nkeynes@736 | 440 | if( pvr2_state.line_count >= pvr2_state.retrace_start_line ) { |
nkeynes@736 | 441 | oddfield = !oddfield; |
nkeynes@736 | 442 | } |
nkeynes@736 | 443 | if( oddfield ) { |
nkeynes@736 | 444 | fbuf.address = MMIO_READ( PVR2, DISP_ADDR1 ); |
nkeynes@736 | 445 | } else { |
nkeynes@736 | 446 | fbuf.address = MMIO_READ( PVR2, DISP_ADDR2 ); |
nkeynes@736 | 447 | } |
nkeynes@736 | 448 | } |
nkeynes@736 | 449 | } else { |
nkeynes@736 | 450 | fbuf.address = MMIO_READ( PVR2, DISP_ADDR1 ); |
nkeynes@736 | 451 | } |
nkeynes@736 | 452 | fbuf.address = (fbuf.address & 0x00FFFFFF) + PVR2_RAM_BASE; |
nkeynes@736 | 453 | fbuf.inverted = FALSE; |
nkeynes@934 | 454 | fbuf.data = pvr2_main_ram + (fbuf.address&0x00FFFFFF); |
nkeynes@352 | 455 | |
nkeynes@736 | 456 | render_buffer_t rbuf = pvr2_get_render_buffer( &fbuf ); |
nkeynes@736 | 457 | if( rbuf == NULL ) { |
nkeynes@736 | 458 | rbuf = pvr2_frame_buffer_to_render_buffer( &fbuf ); |
nkeynes@736 | 459 | } |
nkeynes@736 | 460 | displayed_render_buffer = rbuf; |
nkeynes@1 | 461 | } |
nkeynes@1 | 462 | } |
nkeynes@1 | 463 | |
nkeynes@197 | 464 | /** |
nkeynes@197 | 465 | * This has to handle every single register individually as they all get masked |
nkeynes@197 | 466 | * off differently (and its easier to do it at write time) |
nkeynes@197 | 467 | */ |
nkeynes@929 | 468 | MMIO_REGION_WRITE_FN( PVR2, reg, val ) |
nkeynes@1 | 469 | { |
nkeynes@929 | 470 | reg &= 0xFFF; |
nkeynes@1 | 471 | if( reg >= 0x200 && reg < 0x600 ) { /* Fog table */ |
nkeynes@1 | 472 | MMIO_WRITE( PVR2, reg, val ); |
nkeynes@1 | 473 | return; |
nkeynes@1 | 474 | } |
nkeynes@736 | 475 | |
nkeynes@1 | 476 | switch(reg) { |
nkeynes@189 | 477 | case PVRID: |
nkeynes@189 | 478 | case PVRVER: |
nkeynes@261 | 479 | case GUNPOS: /* Read only registers */ |
nkeynes@736 | 480 | break; |
nkeynes@197 | 481 | case PVRRESET: |
nkeynes@736 | 482 | val &= 0x00000007; /* Do stuff? */ |
nkeynes@736 | 483 | MMIO_WRITE( PVR2, reg, val ); |
nkeynes@736 | 484 | break; |
nkeynes@295 | 485 | case RENDER_START: /* Don't really care what value */ |
nkeynes@736 | 486 | if( save_next_render_filename != NULL ) { |
nkeynes@736 | 487 | if( pvr2_render_save_scene(save_next_render_filename) == 0 ) { |
nkeynes@736 | 488 | INFO( "Saved scene to %s", save_next_render_filename); |
nkeynes@736 | 489 | } |
nkeynes@736 | 490 | g_free( save_next_render_filename ); |
nkeynes@736 | 491 | save_next_render_filename = NULL; |
nkeynes@736 | 492 | } |
nkeynes@736 | 493 | pvr2_scene_read(); |
nkeynes@736 | 494 | render_buffer_t buffer = pvr2_next_render_buffer(); |
nkeynes@736 | 495 | if( buffer != NULL ) { |
nkeynes@736 | 496 | pvr2_scene_render( buffer ); |
nkeynes@871 | 497 | if( buffer->address < PVR2_RAM_BASE ) { |
nkeynes@871 | 498 | // Flush immediately - optimize this later. Otherwise this gets |
nkeynes@871 | 499 | // complicated very quickly trying to second-guess how it's |
nkeynes@871 | 500 | // going to be used as a texture. |
nkeynes@921 | 501 | pvr2_finish_render_buffer( buffer ); |
nkeynes@871 | 502 | pvr2_render_buffer_copy_to_sh4( buffer ); |
nkeynes@871 | 503 | } |
nkeynes@736 | 504 | } |
nkeynes@736 | 505 | asic_event( EVENT_PVR_RENDER_DONE ); |
nkeynes@736 | 506 | break; |
nkeynes@191 | 507 | case RENDER_POLYBASE: |
nkeynes@736 | 508 | MMIO_WRITE( PVR2, reg, val&0x00F00000 ); |
nkeynes@736 | 509 | break; |
nkeynes@191 | 510 | case RENDER_TSPCFG: |
nkeynes@736 | 511 | MMIO_WRITE( PVR2, reg, val&0x00010101 ); |
nkeynes@736 | 512 | break; |
nkeynes@197 | 513 | case DISP_BORDER: |
nkeynes@736 | 514 | MMIO_WRITE( PVR2, reg, val&0x01FFFFFF ); |
nkeynes@736 | 515 | break; |
nkeynes@197 | 516 | case DISP_MODE: |
nkeynes@736 | 517 | MMIO_WRITE( PVR2, reg, val&0x00FFFF7F ); |
nkeynes@736 | 518 | break; |
nkeynes@191 | 519 | case RENDER_MODE: |
nkeynes@736 | 520 | MMIO_WRITE( PVR2, reg, val&0x00FFFF0F ); |
nkeynes@736 | 521 | break; |
nkeynes@191 | 522 | case RENDER_SIZE: |
nkeynes@736 | 523 | MMIO_WRITE( PVR2, reg, val&0x000001FF ); |
nkeynes@736 | 524 | break; |
nkeynes@197 | 525 | case DISP_ADDR1: |
nkeynes@736 | 526 | val &= 0x00FFFFFC; |
nkeynes@736 | 527 | MMIO_WRITE( PVR2, reg, val ); |
nkeynes@736 | 528 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@736 | 529 | break; |
nkeynes@197 | 530 | case DISP_ADDR2: |
nkeynes@736 | 531 | MMIO_WRITE( PVR2, reg, val&0x00FFFFFC ); |
nkeynes@736 | 532 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@736 | 533 | break; |
nkeynes@197 | 534 | case DISP_SIZE: |
nkeynes@736 | 535 | MMIO_WRITE( PVR2, reg, val&0x3FFFFFFF ); |
nkeynes@736 | 536 | break; |
nkeynes@191 | 537 | case RENDER_ADDR1: |
nkeynes@191 | 538 | case RENDER_ADDR2: |
nkeynes@736 | 539 | MMIO_WRITE( PVR2, reg, val&0x01FFFFFC ); |
nkeynes@736 | 540 | break; |
nkeynes@191 | 541 | case RENDER_HCLIP: |
nkeynes@736 | 542 | MMIO_WRITE( PVR2, reg, val&0x07FF07FF ); |
nkeynes@736 | 543 | break; |
nkeynes@191 | 544 | case RENDER_VCLIP: |
nkeynes@736 | 545 | MMIO_WRITE( PVR2, reg, val&0x03FF03FF ); |
nkeynes@736 | 546 | break; |
nkeynes@197 | 547 | case DISP_HPOSIRQ: |
nkeynes@736 | 548 | MMIO_WRITE( PVR2, reg, val&0x03FF33FF ); |
nkeynes@736 | 549 | pvr2_state.irq_hpos_line = val & 0x03FF; |
nkeynes@736 | 550 | pvr2_state.irq_hpos_time_ns = 2000000*((val>>16)&0x03FF)/pvr2_state.dot_clock; |
nkeynes@736 | 551 | pvr2_state.irq_hpos_mode = (val >> 12) & 0x03; |
nkeynes@736 | 552 | switch( pvr2_state.irq_hpos_mode ) { |
nkeynes@736 | 553 | case 3: /* Reserved - treat as 0 */ |
nkeynes@736 | 554 | case 0: /* Once per frame at specified line */ |
nkeynes@736 | 555 | pvr2_state.irq_hpos_mode = HPOS_PER_FRAME; |
nkeynes@736 | 556 | break; |
nkeynes@736 | 557 | case 2: /* Once per line - as per-line-count */ |
nkeynes@736 | 558 | pvr2_state.irq_hpos_line = 1; |
nkeynes@736 | 559 | pvr2_state.irq_hpos_mode = 1; |
nkeynes@736 | 560 | case 1: /* Once per N lines */ |
nkeynes@736 | 561 | pvr2_state.irq_hpos_line_count = pvr2_state.irq_hpos_line; |
nkeynes@736 | 562 | pvr2_state.irq_hpos_line = (pvr2_state.line_count >> 1) + |
nkeynes@736 | 563 | pvr2_state.irq_hpos_line_count; |
nkeynes@736 | 564 | while( pvr2_state.irq_hpos_line > (pvr2_state.total_lines>>1) ) { |
nkeynes@736 | 565 | pvr2_state.irq_hpos_line -= (pvr2_state.total_lines>>1); |
nkeynes@736 | 566 | } |
nkeynes@736 | 567 | pvr2_state.irq_hpos_mode = HPOS_PER_LINECOUNT; |
nkeynes@736 | 568 | } |
nkeynes@736 | 569 | pvr2_schedule_scanline_event( EVENT_HPOS, pvr2_state.irq_hpos_line, 0, |
nkeynes@736 | 570 | pvr2_state.irq_hpos_time_ns ); |
nkeynes@736 | 571 | break; |
nkeynes@736 | 572 | case DISP_VPOSIRQ: |
nkeynes@736 | 573 | val = val & 0x03FF03FF; |
nkeynes@736 | 574 | pvr2_state.irq_vpos1 = (val >> 16); |
nkeynes@736 | 575 | pvr2_state.irq_vpos2 = val & 0x03FF; |
nkeynes@736 | 576 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@736 | 577 | pvr2_schedule_scanline_event( EVENT_SCANLINE1, pvr2_state.irq_vpos1, 0, 0 ); |
nkeynes@736 | 578 | pvr2_schedule_scanline_event( EVENT_SCANLINE2, pvr2_state.irq_vpos2, 0, 0 ); |
nkeynes@736 | 579 | MMIO_WRITE( PVR2, reg, val ); |
nkeynes@736 | 580 | break; |
nkeynes@736 | 581 | case RENDER_NEARCLIP: |
nkeynes@736 | 582 | MMIO_WRITE( PVR2, reg, val & 0x7FFFFFFF ); |
nkeynes@736 | 583 | break; |
nkeynes@736 | 584 | case RENDER_SHADOW: |
nkeynes@736 | 585 | MMIO_WRITE( PVR2, reg, val&0x000001FF ); |
nkeynes@736 | 586 | break; |
nkeynes@736 | 587 | case RENDER_OBJCFG: |
nkeynes@736 | 588 | MMIO_WRITE( PVR2, reg, val&0x003FFFFF ); |
nkeynes@736 | 589 | break; |
nkeynes@736 | 590 | case RENDER_TSPCLIP: |
nkeynes@736 | 591 | MMIO_WRITE( PVR2, reg, val&0x7FFFFFFF ); |
nkeynes@736 | 592 | break; |
nkeynes@736 | 593 | case RENDER_FARCLIP: |
nkeynes@736 | 594 | MMIO_WRITE( PVR2, reg, val&0xFFFFFFF0 ); |
nkeynes@736 | 595 | break; |
nkeynes@736 | 596 | case RENDER_BGPLANE: |
nkeynes@736 | 597 | MMIO_WRITE( PVR2, reg, val&0x1FFFFFFF ); |
nkeynes@736 | 598 | break; |
nkeynes@736 | 599 | case RENDER_ISPCFG: |
nkeynes@736 | 600 | MMIO_WRITE( PVR2, reg, val&0x00FFFFF9 ); |
nkeynes@736 | 601 | break; |
nkeynes@736 | 602 | case VRAM_CFG1: |
nkeynes@736 | 603 | MMIO_WRITE( PVR2, reg, val&0x000000FF ); |
nkeynes@736 | 604 | break; |
nkeynes@736 | 605 | case VRAM_CFG2: |
nkeynes@736 | 606 | MMIO_WRITE( PVR2, reg, val&0x003FFFFF ); |
nkeynes@736 | 607 | break; |
nkeynes@736 | 608 | case VRAM_CFG3: |
nkeynes@736 | 609 | MMIO_WRITE( PVR2, reg, val&0x1FFFFFFF ); |
nkeynes@736 | 610 | break; |
nkeynes@736 | 611 | case RENDER_FOGTBLCOL: |
nkeynes@736 | 612 | case RENDER_FOGVRTCOL: |
nkeynes@736 | 613 | MMIO_WRITE( PVR2, reg, val&0x00FFFFFF ); |
nkeynes@736 | 614 | break; |
nkeynes@736 | 615 | case RENDER_FOGCOEFF: |
nkeynes@736 | 616 | MMIO_WRITE( PVR2, reg, val&0x0000FFFF ); |
nkeynes@736 | 617 | break; |
nkeynes@736 | 618 | case RENDER_CLAMPHI: |
nkeynes@736 | 619 | case RENDER_CLAMPLO: |
nkeynes@736 | 620 | MMIO_WRITE( PVR2, reg, val ); |
nkeynes@736 | 621 | break; |
nkeynes@736 | 622 | case RENDER_TEXSIZE: |
nkeynes@736 | 623 | MMIO_WRITE( PVR2, reg, val&0x00031F1F ); |
nkeynes@736 | 624 | break; |
nkeynes@736 | 625 | case RENDER_PALETTE: |
nkeynes@736 | 626 | MMIO_WRITE( PVR2, reg, val&0x00000003 ); |
nkeynes@736 | 627 | break; |
nkeynes@736 | 628 | case RENDER_ALPHA_REF: |
nkeynes@736 | 629 | MMIO_WRITE( PVR2, reg, val&0x000000FF ); |
nkeynes@736 | 630 | break; |
nkeynes@736 | 631 | /********** CRTC registers *************/ |
nkeynes@736 | 632 | case DISP_HBORDER: |
nkeynes@736 | 633 | case DISP_VBORDER: |
nkeynes@736 | 634 | MMIO_WRITE( PVR2, reg, val&0x03FF03FF ); |
nkeynes@736 | 635 | break; |
nkeynes@736 | 636 | case DISP_TOTAL: |
nkeynes@736 | 637 | val = val & 0x03FF03FF; |
nkeynes@736 | 638 | MMIO_WRITE( PVR2, reg, val ); |
nkeynes@736 | 639 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@736 | 640 | pvr2_state.total_lines = (val >> 16) + 1; |
nkeynes@736 | 641 | pvr2_state.line_size = (val & 0x03FF) + 1; |
nkeynes@736 | 642 | pvr2_state.line_time_ns = 1000000 * pvr2_state.line_size / pvr2_state.dot_clock; |
nkeynes@736 | 643 | pvr2_state.retrace_end_line = 0x2A; |
nkeynes@736 | 644 | pvr2_state.retrace_start_line = pvr2_state.total_lines - 6; |
nkeynes@736 | 645 | pvr2_schedule_scanline_event( EVENT_SCANLINE1, pvr2_state.irq_vpos1, 0, 0 ); |
nkeynes@736 | 646 | pvr2_schedule_scanline_event( EVENT_SCANLINE2, pvr2_state.irq_vpos2, 0, 0 ); |
nkeynes@736 | 647 | pvr2_schedule_scanline_event( EVENT_HPOS, pvr2_state.irq_hpos_line, 0, |
nkeynes@736 | 648 | pvr2_state.irq_hpos_time_ns ); |
nkeynes@736 | 649 | break; |
nkeynes@736 | 650 | case DISP_SYNCCFG: |
nkeynes@736 | 651 | MMIO_WRITE( PVR2, reg, val&0x000003FF ); |
nkeynes@736 | 652 | pvr2_state.interlaced = (val & 0x0010) ? TRUE : FALSE; |
nkeynes@736 | 653 | break; |
nkeynes@736 | 654 | case DISP_SYNCTIME: |
nkeynes@736 | 655 | pvr2_state.vsync_lines = (val >> 8) & 0x0F; |
nkeynes@736 | 656 | pvr2_state.hsync_width_ns = ((val & 0x7F) + 1) * 2000000 / pvr2_state.dot_clock; |
nkeynes@736 | 657 | MMIO_WRITE( PVR2, reg, val&0xFFFFFF7F ); |
nkeynes@736 | 658 | break; |
nkeynes@736 | 659 | case DISP_CFG2: |
nkeynes@736 | 660 | MMIO_WRITE( PVR2, reg, val&0x003F01FF ); |
nkeynes@736 | 661 | break; |
nkeynes@736 | 662 | case DISP_HPOS: |
nkeynes@736 | 663 | val = val & 0x03FF; |
nkeynes@736 | 664 | pvr2_state.front_porch_ns = (val + 1) * 1000000 / pvr2_state.dot_clock; |
nkeynes@736 | 665 | MMIO_WRITE( PVR2, reg, val ); |
nkeynes@736 | 666 | break; |
nkeynes@736 | 667 | case DISP_VPOS: |
nkeynes@736 | 668 | MMIO_WRITE( PVR2, reg, val&0x03FF03FF ); |
nkeynes@736 | 669 | break; |
nkeynes@261 | 670 | |
nkeynes@736 | 671 | /*********** Tile accelerator registers ***********/ |
nkeynes@736 | 672 | case TA_POLYPOS: |
nkeynes@736 | 673 | case TA_LISTPOS: |
nkeynes@736 | 674 | /* Readonly registers */ |
nkeynes@736 | 675 | break; |
nkeynes@736 | 676 | case TA_TILEBASE: |
nkeynes@736 | 677 | case TA_LISTEND: |
nkeynes@736 | 678 | case TA_LISTBASE: |
nkeynes@736 | 679 | MMIO_WRITE( PVR2, reg, val&0x00FFFFE0 ); |
nkeynes@736 | 680 | break; |
nkeynes@736 | 681 | case RENDER_TILEBASE: |
nkeynes@736 | 682 | case TA_POLYBASE: |
nkeynes@736 | 683 | case TA_POLYEND: |
nkeynes@736 | 684 | MMIO_WRITE( PVR2, reg, val&0x00FFFFFC ); |
nkeynes@736 | 685 | break; |
nkeynes@736 | 686 | case TA_TILESIZE: |
nkeynes@736 | 687 | MMIO_WRITE( PVR2, reg, val&0x000F003F ); |
nkeynes@736 | 688 | break; |
nkeynes@736 | 689 | case TA_TILECFG: |
nkeynes@736 | 690 | MMIO_WRITE( PVR2, reg, val&0x00133333 ); |
nkeynes@736 | 691 | break; |
nkeynes@736 | 692 | case TA_INIT: |
nkeynes@736 | 693 | if( val & 0x80000000 ) |
nkeynes@736 | 694 | pvr2_ta_init(); |
nkeynes@736 | 695 | break; |
nkeynes@736 | 696 | case TA_REINIT: |
nkeynes@736 | 697 | break; |
nkeynes@736 | 698 | /**************** Scaler registers? ****************/ |
nkeynes@736 | 699 | case RENDER_SCALER: |
nkeynes@736 | 700 | MMIO_WRITE( PVR2, reg, val&0x0007FFFF ); |
nkeynes@736 | 701 | break; |
nkeynes@261 | 702 | |
nkeynes@736 | 703 | case YUV_ADDR: |
nkeynes@736 | 704 | val = val & 0x00FFFFF8; |
nkeynes@736 | 705 | MMIO_WRITE( PVR2, reg, val ); |
nkeynes@736 | 706 | pvr2_yuv_init( val ); |
nkeynes@736 | 707 | break; |
nkeynes@736 | 708 | case YUV_CFG: |
nkeynes@736 | 709 | MMIO_WRITE( PVR2, reg, val&0x01013F3F ); |
nkeynes@736 | 710 | pvr2_yuv_set_config(val); |
nkeynes@736 | 711 | break; |
nkeynes@261 | 712 | |
nkeynes@736 | 713 | /**************** Unknowns ***************/ |
nkeynes@736 | 714 | case PVRUNK1: |
nkeynes@736 | 715 | MMIO_WRITE( PVR2, reg, val&0x000007FF ); |
nkeynes@736 | 716 | break; |
nkeynes@736 | 717 | case PVRUNK2: |
nkeynes@736 | 718 | MMIO_WRITE( PVR2, reg, val&0x00000007 ); |
nkeynes@736 | 719 | break; |
nkeynes@736 | 720 | case PVRUNK3: |
nkeynes@736 | 721 | MMIO_WRITE( PVR2, reg, val&0x000FFF3F ); |
nkeynes@736 | 722 | break; |
nkeynes@736 | 723 | case PVRUNK5: |
nkeynes@736 | 724 | MMIO_WRITE( PVR2, reg, val&0x0000FFFF ); |
nkeynes@736 | 725 | break; |
nkeynes@736 | 726 | case PVRUNK7: |
nkeynes@736 | 727 | MMIO_WRITE( PVR2, reg, val&0x00000001 ); |
nkeynes@736 | 728 | break; |
nkeynes@736 | 729 | case PVRUNK8: |
nkeynes@736 | 730 | MMIO_WRITE( PVR2, reg, val&0x0300FFFF ); |
nkeynes@736 | 731 | break; |
nkeynes@1 | 732 | } |
nkeynes@1 | 733 | } |
nkeynes@1 | 734 | |
nkeynes@261 | 735 | /** |
nkeynes@261 | 736 | * Calculate the current read value of the syncstat register, using |
nkeynes@261 | 737 | * the current SH4 clock time as an offset from the last timeslice. |
nkeynes@261 | 738 | * The register reads (LSB to MSB) as: |
nkeynes@261 | 739 | * 0..9 Current scan line |
nkeynes@261 | 740 | * 10 Odd/even field (1 = odd, 0 = even) |
nkeynes@261 | 741 | * 11 Display active (including border and overscan) |
nkeynes@261 | 742 | * 12 Horizontal sync off |
nkeynes@261 | 743 | * 13 Vertical sync off |
nkeynes@261 | 744 | * Note this method is probably incorrect for anything other than straight |
nkeynes@265 | 745 | * interlaced PAL/NTSC, and needs further testing. |
nkeynes@261 | 746 | */ |
nkeynes@261 | 747 | uint32_t pvr2_get_sync_status() |
nkeynes@261 | 748 | { |
nkeynes@265 | 749 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@265 | 750 | uint32_t result = pvr2_state.line_count; |
nkeynes@261 | 751 | |
nkeynes@265 | 752 | if( pvr2_state.odd_even_field ) { |
nkeynes@736 | 753 | result |= 0x0400; |
nkeynes@261 | 754 | } |
nkeynes@265 | 755 | if( (pvr2_state.line_count & 0x01) == pvr2_state.odd_even_field ) { |
nkeynes@736 | 756 | if( pvr2_state.line_remainder > pvr2_state.hsync_width_ns ) { |
nkeynes@736 | 757 | result |= 0x1000; /* !HSYNC */ |
nkeynes@736 | 758 | } |
nkeynes@736 | 759 | if( pvr2_state.line_count >= pvr2_state.vsync_lines ) { |
nkeynes@736 | 760 | if( pvr2_state.line_remainder > pvr2_state.front_porch_ns ) { |
nkeynes@736 | 761 | result |= 0x2800; /* Display active */ |
nkeynes@736 | 762 | } else { |
nkeynes@736 | 763 | result |= 0x2000; /* Front porch */ |
nkeynes@736 | 764 | } |
nkeynes@736 | 765 | } |
nkeynes@261 | 766 | } else { |
nkeynes@736 | 767 | if( pvr2_state.line_count >= pvr2_state.vsync_lines ) { |
nkeynes@736 | 768 | if( pvr2_state.line_remainder < (pvr2_state.line_time_ns - pvr2_state.back_porch_ns)) { |
nkeynes@736 | 769 | result |= 0x3800; /* Display active */ |
nkeynes@736 | 770 | } else { |
nkeynes@736 | 771 | result |= 0x3000; |
nkeynes@736 | 772 | } |
nkeynes@736 | 773 | } else { |
nkeynes@736 | 774 | result |= 0x1000; /* Back porch */ |
nkeynes@736 | 775 | } |
nkeynes@261 | 776 | } |
nkeynes@261 | 777 | return result; |
nkeynes@261 | 778 | } |
nkeynes@261 | 779 | |
nkeynes@265 | 780 | /** |
nkeynes@265 | 781 | * Schedule a "scanline" event. This actually goes off at |
nkeynes@265 | 782 | * 2 * line in even fields and 2 * line + 1 in odd fields. |
nkeynes@265 | 783 | * Otherwise this behaves as per pvr2_schedule_line_event(). |
nkeynes@265 | 784 | * The raster position should be updated before calling this |
nkeynes@265 | 785 | * method. |
nkeynes@304 | 786 | * @param eventid Event to fire at the specified time |
nkeynes@304 | 787 | * @param line Line on which to fire the event (this is 2n/2n+1 for interlaced |
nkeynes@304 | 788 | * displays). |
nkeynes@304 | 789 | * @param hpos_ns Nanoseconds into the line at which to fire. |
nkeynes@265 | 790 | */ |
nkeynes@304 | 791 | static void pvr2_schedule_scanline_event( int eventid, int line, int minimum_lines, int hpos_ns ) |
nkeynes@265 | 792 | { |
nkeynes@265 | 793 | uint32_t field = pvr2_state.odd_even_field; |
nkeynes@265 | 794 | if( line <= pvr2_state.line_count && pvr2_state.interlaced ) { |
nkeynes@736 | 795 | field = !field; |
nkeynes@265 | 796 | } |
nkeynes@304 | 797 | if( hpos_ns > pvr2_state.line_time_ns ) { |
nkeynes@736 | 798 | hpos_ns = pvr2_state.line_time_ns; |
nkeynes@304 | 799 | } |
nkeynes@265 | 800 | |
nkeynes@265 | 801 | line <<= 1; |
nkeynes@265 | 802 | if( field ) { |
nkeynes@736 | 803 | line += 1; |
nkeynes@265 | 804 | } |
nkeynes@736 | 805 | |
nkeynes@274 | 806 | if( line < pvr2_state.total_lines ) { |
nkeynes@736 | 807 | uint32_t lines; |
nkeynes@736 | 808 | uint32_t time; |
nkeynes@736 | 809 | if( line <= pvr2_state.line_count ) { |
nkeynes@736 | 810 | lines = (pvr2_state.total_lines - pvr2_state.line_count + line); |
nkeynes@736 | 811 | } else { |
nkeynes@736 | 812 | lines = (line - pvr2_state.line_count); |
nkeynes@736 | 813 | } |
nkeynes@736 | 814 | if( lines <= minimum_lines ) { |
nkeynes@736 | 815 | lines += pvr2_state.total_lines; |
nkeynes@736 | 816 | } |
nkeynes@736 | 817 | time = (lines * pvr2_state.line_time_ns) - pvr2_state.line_remainder + hpos_ns; |
nkeynes@736 | 818 | event_schedule( eventid, time ); |
nkeynes@274 | 819 | } else { |
nkeynes@736 | 820 | event_cancel( eventid ); |
nkeynes@274 | 821 | } |
nkeynes@265 | 822 | } |
nkeynes@265 | 823 | |
nkeynes@850 | 824 | void pvr2_queue_gun_event( int xpos, int ypos ) |
nkeynes@850 | 825 | { |
nkeynes@850 | 826 | pvr2_update_raster_posn(sh4r.slice_cycle); |
nkeynes@850 | 827 | pvr2_schedule_scanline_event( EVENT_GUNPOS, (ypos >> 1) + pvr2_state.vsync_lines, 0, |
nkeynes@850 | 828 | (1000000 * xpos / pvr2_state.dot_clock) + pvr2_state.hsync_width_ns ); |
nkeynes@850 | 829 | } |
nkeynes@850 | 830 | |
nkeynes@1 | 831 | MMIO_REGION_READ_FN( PVR2, reg ) |
nkeynes@1 | 832 | { |
nkeynes@929 | 833 | reg &= 0xFFF; |
nkeynes@1 | 834 | switch( reg ) { |
nkeynes@736 | 835 | case DISP_SYNCSTAT: |
nkeynes@736 | 836 | return pvr2_get_sync_status(); |
nkeynes@736 | 837 | default: |
nkeynes@736 | 838 | return MMIO_READ( PVR2, reg ); |
nkeynes@1 | 839 | } |
nkeynes@1 | 840 | } |
nkeynes@975 | 841 | MMIO_REGION_READ_DEFSUBFNS(PVR2) |
nkeynes@975 | 842 | MMIO_REGION_READ_DEFSUBFNS(PVR2PAL) |
nkeynes@19 | 843 | |
nkeynes@337 | 844 | MMIO_REGION_WRITE_FN( PVR2PAL, reg, val ) |
nkeynes@337 | 845 | { |
nkeynes@929 | 846 | reg &= 0xFFF; |
nkeynes@337 | 847 | MMIO_WRITE( PVR2PAL, reg, val ); |
nkeynes@337 | 848 | pvr2_state.palette_changed = TRUE; |
nkeynes@337 | 849 | } |
nkeynes@337 | 850 | |
nkeynes@337 | 851 | void pvr2_check_palette_changed() |
nkeynes@337 | 852 | { |
nkeynes@337 | 853 | if( pvr2_state.palette_changed ) { |
nkeynes@736 | 854 | texcache_invalidate_palette(); |
nkeynes@736 | 855 | pvr2_state.palette_changed = FALSE; |
nkeynes@337 | 856 | } |
nkeynes@337 | 857 | } |
nkeynes@337 | 858 | |
nkeynes@337 | 859 | MMIO_REGION_READ_DEFFN( PVR2PAL ); |
nkeynes@85 | 860 | |
nkeynes@19 | 861 | void pvr2_set_base_address( uint32_t base ) |
nkeynes@19 | 862 | { |
nkeynes@197 | 863 | mmio_region_PVR2_write( DISP_ADDR1, base ); |
nkeynes@19 | 864 | } |
nkeynes@56 | 865 | |
nkeynes@856 | 866 | render_buffer_t pvr2_create_render_buffer( sh4addr_t addr, int width, int height, GLuint tex_id ) |
nkeynes@856 | 867 | { |
nkeynes@856 | 868 | if( display_driver != NULL && display_driver->create_render_buffer != NULL ) { |
nkeynes@856 | 869 | render_buffer_t buffer = display_driver->create_render_buffer(width,height,tex_id); |
nkeynes@856 | 870 | buffer->address = addr; |
nkeynes@856 | 871 | return buffer; |
nkeynes@856 | 872 | } |
nkeynes@856 | 873 | return NULL; |
nkeynes@856 | 874 | } |
nkeynes@856 | 875 | |
nkeynes@856 | 876 | void pvr2_destroy_render_buffer( render_buffer_t buffer ) |
nkeynes@856 | 877 | { |
nkeynes@856 | 878 | if( !buffer->flushed ) |
nkeynes@856 | 879 | pvr2_render_buffer_copy_to_sh4( buffer ); |
nkeynes@856 | 880 | display_driver->destroy_render_buffer( buffer ); |
nkeynes@856 | 881 | } |
nkeynes@856 | 882 | |
nkeynes@856 | 883 | void pvr2_finish_render_buffer( render_buffer_t buffer ) |
nkeynes@856 | 884 | { |
nkeynes@856 | 885 | display_driver->finish_render( buffer ); |
nkeynes@856 | 886 | } |
nkeynes@856 | 887 | |
nkeynes@352 | 888 | /** |
nkeynes@352 | 889 | * Find the render buffer corresponding to the requested output frame |
nkeynes@352 | 890 | * (does not consider texture renders). |
nkeynes@352 | 891 | * @return the render_buffer if found, or null if no such buffer. |
nkeynes@352 | 892 | * |
nkeynes@352 | 893 | * Note: Currently does not consider "partial matches", ie partial |
nkeynes@352 | 894 | * frame overlap - it probably needs to do this. |
nkeynes@352 | 895 | */ |
nkeynes@352 | 896 | render_buffer_t pvr2_get_render_buffer( frame_buffer_t frame ) |
nkeynes@352 | 897 | { |
nkeynes@352 | 898 | int i; |
nkeynes@352 | 899 | for( i=0; i<render_buffer_count; i++ ) { |
nkeynes@736 | 900 | if( render_buffers[i] != NULL && render_buffers[i]->address == frame->address ) { |
nkeynes@736 | 901 | return render_buffers[i]; |
nkeynes@736 | 902 | } |
nkeynes@352 | 903 | } |
nkeynes@352 | 904 | return NULL; |
nkeynes@352 | 905 | } |
nkeynes@352 | 906 | |
nkeynes@352 | 907 | /** |
nkeynes@477 | 908 | * Allocate a render buffer with the requested parameters. |
nkeynes@477 | 909 | * The order of preference is: |
nkeynes@352 | 910 | * 1. An existing buffer with the same address. (not flushed unless the new |
nkeynes@352 | 911 | * size is smaller than the old one). |
nkeynes@352 | 912 | * 2. An existing buffer with the same size chosen by LRU order. Old buffer |
nkeynes@352 | 913 | * is flushed to vram. |
nkeynes@352 | 914 | * 3. A new buffer if one can be created. |
nkeynes@352 | 915 | * 4. The current display buff |
nkeynes@352 | 916 | * Note: The current display field(s) will never be overwritten except as a last |
nkeynes@352 | 917 | * resort. |
nkeynes@352 | 918 | */ |
nkeynes@477 | 919 | render_buffer_t pvr2_alloc_render_buffer( sh4addr_t render_addr, int width, int height ) |
nkeynes@352 | 920 | { |
nkeynes@477 | 921 | int i; |
nkeynes@352 | 922 | render_buffer_t result = NULL; |
nkeynes@352 | 923 | |
nkeynes@352 | 924 | /* Check existing buffers for an available buffer */ |
nkeynes@352 | 925 | for( i=0; i<render_buffer_count; i++ ) { |
nkeynes@736 | 926 | if( render_buffers[i]->width == width && render_buffers[i]->height == height ) { |
nkeynes@736 | 927 | /* needs to be the right dimensions */ |
nkeynes@736 | 928 | if( render_buffers[i]->address == render_addr ) { |
nkeynes@736 | 929 | if( displayed_render_buffer == render_buffers[i] ) { |
nkeynes@736 | 930 | /* Same address, but we can't use it because the |
nkeynes@736 | 931 | * display has it. Mark it as unaddressed for later. |
nkeynes@736 | 932 | */ |
nkeynes@736 | 933 | render_buffers[i]->address = -1; |
nkeynes@736 | 934 | } else { |
nkeynes@736 | 935 | /* perfect */ |
nkeynes@736 | 936 | result = render_buffers[i]; |
nkeynes@736 | 937 | break; |
nkeynes@736 | 938 | } |
nkeynes@736 | 939 | } else if( render_buffers[i]->address == -1 && result == NULL && |
nkeynes@736 | 940 | displayed_render_buffer != render_buffers[i] ) { |
nkeynes@736 | 941 | result = render_buffers[i]; |
nkeynes@736 | 942 | } |
nkeynes@736 | 943 | |
nkeynes@736 | 944 | } else if( render_buffers[i]->address == render_addr ) { |
nkeynes@736 | 945 | /* right address, wrong size - if it's larger, flush it, otherwise |
nkeynes@736 | 946 | * nuke it quietly */ |
nkeynes@736 | 947 | if( render_buffers[i]->width * render_buffers[i]->height > |
nkeynes@736 | 948 | width*height ) { |
nkeynes@736 | 949 | pvr2_render_buffer_copy_to_sh4( render_buffers[i] ); |
nkeynes@736 | 950 | } |
nkeynes@736 | 951 | render_buffers[i]->address = -1; |
nkeynes@736 | 952 | } |
nkeynes@352 | 953 | } |
nkeynes@352 | 954 | |
nkeynes@352 | 955 | /* Nothing available - make one */ |
nkeynes@352 | 956 | if( result == NULL ) { |
nkeynes@736 | 957 | if( render_buffer_count == MAX_RENDER_BUFFERS ) { |
nkeynes@736 | 958 | /* maximum buffers reached - need to throw one away */ |
nkeynes@736 | 959 | uint32_t field1_addr = MMIO_READ( PVR2, DISP_ADDR1 ); |
nkeynes@736 | 960 | uint32_t field2_addr = MMIO_READ( PVR2, DISP_ADDR2 ); |
nkeynes@736 | 961 | for( i=0; i<render_buffer_count; i++ ) { |
nkeynes@736 | 962 | if( render_buffers[i]->address != field1_addr && |
nkeynes@736 | 963 | render_buffers[i]->address != field2_addr && |
nkeynes@736 | 964 | render_buffers[i] != displayed_render_buffer ) { |
nkeynes@736 | 965 | /* Never throw away the current "front buffer(s)" */ |
nkeynes@736 | 966 | result = render_buffers[i]; |
nkeynes@871 | 967 | if( !result->flushed && result->address != -1 ) { |
nkeynes@736 | 968 | pvr2_render_buffer_copy_to_sh4( result ); |
nkeynes@736 | 969 | } |
nkeynes@736 | 970 | if( result->width != width || result->height != height ) { |
nkeynes@736 | 971 | display_driver->destroy_render_buffer(render_buffers[i]); |
nkeynes@805 | 972 | result = display_driver->create_render_buffer(width,height,0); |
nkeynes@736 | 973 | render_buffers[i] = result; |
nkeynes@736 | 974 | } |
nkeynes@736 | 975 | break; |
nkeynes@736 | 976 | } |
nkeynes@736 | 977 | } |
nkeynes@736 | 978 | } else { |
nkeynes@805 | 979 | result = display_driver->create_render_buffer(width,height,0); |
nkeynes@736 | 980 | if( result != NULL ) { |
nkeynes@736 | 981 | render_buffers[render_buffer_count++] = result; |
nkeynes@736 | 982 | } |
nkeynes@736 | 983 | } |
nkeynes@352 | 984 | } |
nkeynes@352 | 985 | |
nkeynes@477 | 986 | if( result != NULL ) { |
nkeynes@736 | 987 | result->address = render_addr; |
nkeynes@477 | 988 | } |
nkeynes@352 | 989 | return result; |
nkeynes@352 | 990 | } |
nkeynes@352 | 991 | |
nkeynes@352 | 992 | /** |
nkeynes@477 | 993 | * Allocate a render buffer based on the current rendering settings |
nkeynes@477 | 994 | */ |
nkeynes@477 | 995 | render_buffer_t pvr2_next_render_buffer() |
nkeynes@477 | 996 | { |
nkeynes@477 | 997 | render_buffer_t result = NULL; |
nkeynes@477 | 998 | uint32_t render_addr = MMIO_READ( PVR2, RENDER_ADDR1 ); |
nkeynes@477 | 999 | uint32_t render_mode = MMIO_READ( PVR2, RENDER_MODE ); |
nkeynes@477 | 1000 | uint32_t render_scale = MMIO_READ( PVR2, RENDER_SCALER ); |
nkeynes@477 | 1001 | uint32_t render_stride = MMIO_READ( PVR2, RENDER_SIZE ) << 3; |
nkeynes@477 | 1002 | |
nkeynes@856 | 1003 | int width = pvr2_scene_buffer_width(); |
nkeynes@856 | 1004 | int height = pvr2_scene_buffer_height(); |
nkeynes@856 | 1005 | int colour_format = render_colour_formats[render_mode&0x07]; |
nkeynes@856 | 1006 | |
nkeynes@477 | 1007 | if( render_addr & 0x01000000 ) { /* vram64 */ |
nkeynes@736 | 1008 | render_addr = (render_addr & 0x00FFFFFF) + PVR2_RAM_BASE_INT; |
nkeynes@477 | 1009 | } else { /* vram32 */ |
nkeynes@736 | 1010 | render_addr = (render_addr & 0x00FFFFFF) + PVR2_RAM_BASE; |
nkeynes@477 | 1011 | } |
nkeynes@871 | 1012 | result = pvr2_alloc_render_buffer( render_addr, width, height ); |
nkeynes@871 | 1013 | |
nkeynes@477 | 1014 | /* Setup the buffer */ |
nkeynes@477 | 1015 | if( result != NULL ) { |
nkeynes@736 | 1016 | result->rowstride = render_stride; |
nkeynes@736 | 1017 | result->colour_format = colour_format; |
nkeynes@736 | 1018 | result->scale = render_scale; |
nkeynes@736 | 1019 | result->size = width * height * colour_formats[colour_format].bpp; |
nkeynes@736 | 1020 | result->flushed = FALSE; |
nkeynes@736 | 1021 | result->inverted = TRUE; // render buffers are inverted normally |
nkeynes@477 | 1022 | } |
nkeynes@477 | 1023 | return result; |
nkeynes@477 | 1024 | } |
nkeynes@477 | 1025 | |
nkeynes@477 | 1026 | static render_buffer_t pvr2_frame_buffer_to_render_buffer( frame_buffer_t frame ) |
nkeynes@477 | 1027 | { |
nkeynes@477 | 1028 | render_buffer_t result = pvr2_alloc_render_buffer( frame->address, frame->width, frame->height ); |
nkeynes@477 | 1029 | if( result != NULL ) { |
nkeynes@736 | 1030 | int bpp = colour_formats[frame->colour_format].bpp; |
nkeynes@736 | 1031 | result->rowstride = frame->rowstride; |
nkeynes@736 | 1032 | result->colour_format = frame->colour_format; |
nkeynes@736 | 1033 | result->scale = 0x400; |
nkeynes@736 | 1034 | result->size = frame->width * frame->height * bpp; |
nkeynes@736 | 1035 | result->flushed = TRUE; |
nkeynes@736 | 1036 | result->inverted = frame->inverted; |
nkeynes@736 | 1037 | display_driver->load_frame_buffer( frame, result ); |
nkeynes@477 | 1038 | } |
nkeynes@477 | 1039 | return result; |
nkeynes@477 | 1040 | } |
nkeynes@736 | 1041 | |
nkeynes@477 | 1042 | |
nkeynes@477 | 1043 | /** |
nkeynes@352 | 1044 | * Invalidate any caching on the supplied address. Specifically, if it falls |
nkeynes@352 | 1045 | * within any of the render buffers, flush the buffer back to PVR2 ram. |
nkeynes@352 | 1046 | */ |
nkeynes@352 | 1047 | gboolean pvr2_render_buffer_invalidate( sh4addr_t address, gboolean isWrite ) |
nkeynes@352 | 1048 | { |
nkeynes@352 | 1049 | int i; |
nkeynes@352 | 1050 | address = address & 0x1FFFFFFF; |
nkeynes@352 | 1051 | for( i=0; i<render_buffer_count; i++ ) { |
nkeynes@736 | 1052 | uint32_t bufaddr = render_buffers[i]->address; |
nkeynes@736 | 1053 | if( bufaddr != -1 && bufaddr <= address && |
nkeynes@736 | 1054 | (bufaddr + render_buffers[i]->size) > address ) { |
nkeynes@736 | 1055 | if( !render_buffers[i]->flushed ) { |
nkeynes@736 | 1056 | pvr2_render_buffer_copy_to_sh4( render_buffers[i] ); |
nkeynes@736 | 1057 | } |
nkeynes@736 | 1058 | if( isWrite ) { |
nkeynes@736 | 1059 | render_buffers[i]->address = -1; /* Invalid */ |
nkeynes@736 | 1060 | } |
nkeynes@736 | 1061 | return TRUE; /* should never have overlapping buffers */ |
nkeynes@736 | 1062 | } |
nkeynes@352 | 1063 | } |
nkeynes@352 | 1064 | return FALSE; |
nkeynes@352 | 1065 | } |
.