filename | src/pvr2/render.c |
changeset | 308:10a5b5475fb0 |
prev | 299:d0c983d5ad59 |
next | 315:2d8ba198d62c |
author | nkeynes |
date | Sun Jan 21 11:28:43 2007 +0000 (14 years ago) |
permissions | -rw-r--r-- |
last change | Enable blend by default - remove toggle on tex-alpha bit as its just plain wrong Implement UV clamping |
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nkeynes@100 | 1 | /** |
nkeynes@308 | 2 | * $Id: render.c,v 1.17 2007-01-21 11:28:43 nkeynes Exp $ |
nkeynes@100 | 3 | * |
nkeynes@189 | 4 | * PVR2 Renderer support. This part is primarily |
nkeynes@100 | 5 | * |
nkeynes@100 | 6 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@100 | 7 | * |
nkeynes@100 | 8 | * This program is free software; you can redistribute it and/or modify |
nkeynes@100 | 9 | * it under the terms of the GNU General Public License as published by |
nkeynes@100 | 10 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@100 | 11 | * (at your option) any later version. |
nkeynes@100 | 12 | * |
nkeynes@100 | 13 | * This program is distributed in the hope that it will be useful, |
nkeynes@100 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@100 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@100 | 16 | * GNU General Public License for more details. |
nkeynes@100 | 17 | */ |
nkeynes@100 | 18 | |
nkeynes@100 | 19 | #include "pvr2/pvr2.h" |
nkeynes@100 | 20 | #include "asic.h" |
nkeynes@103 | 21 | |
nkeynes@100 | 22 | /** |
nkeynes@103 | 23 | * Describes a rendering buffer that's actually held in GL, for when we need |
nkeynes@103 | 24 | * to fetch the bits back to vram. |
nkeynes@103 | 25 | */ |
nkeynes@103 | 26 | typedef struct pvr2_render_buffer { |
nkeynes@161 | 27 | sh4addr_t render_addr; /* The actual address rendered to in pvr ram */ |
nkeynes@161 | 28 | uint32_t size; /* Length of rendering region in bytes */ |
nkeynes@103 | 29 | int width, height; |
nkeynes@103 | 30 | int colour_format; |
nkeynes@103 | 31 | } *pvr2_render_buffer_t; |
nkeynes@103 | 32 | |
nkeynes@103 | 33 | struct pvr2_render_buffer front_buffer; |
nkeynes@103 | 34 | struct pvr2_render_buffer back_buffer; |
nkeynes@103 | 35 | |
nkeynes@128 | 36 | typedef struct pvr2_bgplane_packed { |
nkeynes@128 | 37 | uint32_t poly_cfg, poly_mode; |
nkeynes@128 | 38 | uint32_t texture_mode; |
nkeynes@128 | 39 | float x1, y1, z1; |
nkeynes@128 | 40 | uint32_t colour1; |
nkeynes@128 | 41 | float x2, y2, z2; |
nkeynes@128 | 42 | uint32_t colour2; |
nkeynes@128 | 43 | float x3, y3, z3; |
nkeynes@128 | 44 | uint32_t colour3; |
nkeynes@128 | 45 | } *pvr2_bgplane_packed_t; |
nkeynes@128 | 46 | |
nkeynes@128 | 47 | |
nkeynes@103 | 48 | |
nkeynes@103 | 49 | void pvr2_render_copy_to_sh4( pvr2_render_buffer_t buffer, |
nkeynes@103 | 50 | gboolean backBuffer ); |
nkeynes@103 | 51 | |
nkeynes@108 | 52 | int pvr2_render_font_list = -1; |
nkeynes@132 | 53 | int pvr2_render_trace = 0; |
nkeynes@108 | 54 | |
nkeynes@132 | 55 | int glPrintf( int x, int y, const char *fmt, ... ) |
nkeynes@108 | 56 | { |
nkeynes@108 | 57 | va_list ap; /* our argument pointer */ |
nkeynes@108 | 58 | char buf[256]; |
nkeynes@108 | 59 | int len; |
nkeynes@108 | 60 | if (fmt == NULL) /* if there is no string to draw do nothing */ |
nkeynes@108 | 61 | return; |
nkeynes@108 | 62 | va_start(ap, fmt); |
nkeynes@108 | 63 | len = vsnprintf(buf, sizeof(buf), fmt, ap); |
nkeynes@108 | 64 | va_end(ap); |
nkeynes@108 | 65 | |
nkeynes@108 | 66 | |
nkeynes@108 | 67 | glPushAttrib(GL_LIST_BIT); |
nkeynes@132 | 68 | glDisable( GL_DEPTH_TEST ); |
nkeynes@132 | 69 | glDisable( GL_BLEND ); |
nkeynes@132 | 70 | glDisable( GL_TEXTURE_2D ); |
nkeynes@132 | 71 | glDisable( GL_ALPHA_TEST ); |
nkeynes@189 | 72 | glDisable( GL_CULL_FACE ); |
nkeynes@108 | 73 | glListBase(pvr2_render_font_list - 32); |
nkeynes@132 | 74 | glColor3f( 1.0, 1.0, 1.0 ); |
nkeynes@132 | 75 | glRasterPos2i( x, y ); |
nkeynes@108 | 76 | glCallLists(len, GL_UNSIGNED_BYTE, buf); |
nkeynes@108 | 77 | glPopAttrib(); |
nkeynes@108 | 78 | |
nkeynes@108 | 79 | return len; |
nkeynes@108 | 80 | } |
nkeynes@108 | 81 | |
nkeynes@189 | 82 | void glDrawGrid( int width, int height ) |
nkeynes@189 | 83 | { |
nkeynes@189 | 84 | int i; |
nkeynes@189 | 85 | glDisable( GL_DEPTH_TEST ); |
nkeynes@189 | 86 | glLineWidth(1); |
nkeynes@189 | 87 | |
nkeynes@189 | 88 | glBegin( GL_LINES ); |
nkeynes@189 | 89 | glColor4f( 1.0, 1.0, 1.0, 1.0 ); |
nkeynes@189 | 90 | for( i=32; i<width; i+=32 ) { |
nkeynes@189 | 91 | glVertex3f( i, 0.0, 3.0 ); |
nkeynes@189 | 92 | glVertex3f( i,height-1, 3.0 ); |
nkeynes@189 | 93 | } |
nkeynes@189 | 94 | |
nkeynes@189 | 95 | for( i=32; i<height; i+=32 ) { |
nkeynes@189 | 96 | glVertex3f( 0.0, i, 3.0 ); |
nkeynes@189 | 97 | glVertex3f( width, i, 3.0 ); |
nkeynes@189 | 98 | } |
nkeynes@189 | 99 | glEnd(); |
nkeynes@189 | 100 | |
nkeynes@189 | 101 | } |
nkeynes@189 | 102 | |
nkeynes@103 | 103 | |
nkeynes@103 | 104 | gboolean pvr2_render_init( void ) |
nkeynes@103 | 105 | { |
nkeynes@103 | 106 | front_buffer.render_addr = -1; |
nkeynes@103 | 107 | back_buffer.render_addr = -1; |
nkeynes@103 | 108 | } |
nkeynes@103 | 109 | |
nkeynes@103 | 110 | /** |
nkeynes@161 | 111 | * Invalidate any caching on the supplied address. Specifically, if it falls |
nkeynes@161 | 112 | * within either the front buffer or back buffer, flush the buffer back to |
nkeynes@161 | 113 | * PVR2 ram (note that front buffer flush may be corrupt under some |
nkeynes@161 | 114 | * circumstances). |
nkeynes@161 | 115 | */ |
nkeynes@161 | 116 | gboolean pvr2_render_invalidate( sh4addr_t address ) |
nkeynes@161 | 117 | { |
nkeynes@161 | 118 | address = address & 0x1FFFFFFF; |
nkeynes@161 | 119 | if( front_buffer.render_addr != -1 && |
nkeynes@161 | 120 | front_buffer.render_addr <= address && |
nkeynes@161 | 121 | (front_buffer.render_addr + front_buffer.size) > address ) { |
nkeynes@161 | 122 | pvr2_render_copy_to_sh4( &front_buffer, FALSE ); |
nkeynes@161 | 123 | front_buffer.render_addr = -1; |
nkeynes@161 | 124 | return TRUE; |
nkeynes@161 | 125 | } else if( back_buffer.render_addr != -1 && |
nkeynes@161 | 126 | back_buffer.render_addr <= address && |
nkeynes@161 | 127 | (back_buffer.render_addr + back_buffer.size) > address ) { |
nkeynes@161 | 128 | pvr2_render_copy_to_sh4( &back_buffer, TRUE ); |
nkeynes@161 | 129 | back_buffer.render_addr = -1; |
nkeynes@161 | 130 | return TRUE; |
nkeynes@161 | 131 | } |
nkeynes@161 | 132 | return FALSE; |
nkeynes@161 | 133 | } |
nkeynes@161 | 134 | |
nkeynes@161 | 135 | /** |
nkeynes@103 | 136 | * Display a rendered frame if one is available. |
nkeynes@103 | 137 | * @param address An address in PVR ram (0500000 range). |
nkeynes@103 | 138 | * @return TRUE if a frame was available to be displayed, otherwise false. |
nkeynes@103 | 139 | */ |
nkeynes@103 | 140 | gboolean pvr2_render_display_frame( uint32_t address ) |
nkeynes@103 | 141 | { |
nkeynes@103 | 142 | if( front_buffer.render_addr == address ) { |
nkeynes@103 | 143 | /* Current front buffer is already displayed, so do nothing |
nkeynes@103 | 144 | * and tell the caller that all is well. |
nkeynes@103 | 145 | */ |
nkeynes@103 | 146 | return TRUE; |
nkeynes@103 | 147 | } |
nkeynes@103 | 148 | if( back_buffer.render_addr == address ) { |
nkeynes@103 | 149 | /* The more useful case - back buffer is to be displayed. Swap |
nkeynes@103 | 150 | * the buffers |
nkeynes@103 | 151 | */ |
nkeynes@144 | 152 | display_driver->display_back_buffer(); |
nkeynes@103 | 153 | front_buffer = back_buffer; |
nkeynes@103 | 154 | back_buffer.render_addr = -1; |
nkeynes@103 | 155 | return TRUE; |
nkeynes@103 | 156 | } |
nkeynes@103 | 157 | return FALSE; |
nkeynes@108 | 158 | } |
nkeynes@103 | 159 | |
nkeynes@103 | 160 | /** |
nkeynes@103 | 161 | * Prepare the OpenGL context to receive instructions for a new frame. |
nkeynes@103 | 162 | */ |
nkeynes@103 | 163 | static void pvr2_render_prepare_context( sh4addr_t render_addr, |
nkeynes@103 | 164 | uint32_t width, uint32_t height, |
nkeynes@103 | 165 | uint32_t colour_format, |
nkeynes@128 | 166 | float bgplanez, |
nkeynes@103 | 167 | gboolean texture_target ) |
nkeynes@103 | 168 | { |
nkeynes@103 | 169 | /* Select and initialize the render context */ |
nkeynes@144 | 170 | display_driver->set_render_format( width, height, colour_format, texture_target ); |
nkeynes@103 | 171 | |
nkeynes@132 | 172 | if( pvr2_render_font_list == -1 ) { |
nkeynes@132 | 173 | pvr2_render_font_list = video_glx_load_font( "-*-helvetica-*-r-normal--16-*-*-*-p-*-iso8859-1"); |
nkeynes@132 | 174 | } |
nkeynes@132 | 175 | |
nkeynes@103 | 176 | if( back_buffer.render_addr != -1 && |
nkeynes@103 | 177 | back_buffer.render_addr != render_addr ) { |
nkeynes@103 | 178 | /* There's a current back buffer, and we're rendering somewhere else - |
nkeynes@103 | 179 | * flush the back buffer back to vram and start a new back buffer |
nkeynes@103 | 180 | */ |
nkeynes@103 | 181 | pvr2_render_copy_to_sh4( &back_buffer, TRUE ); |
nkeynes@103 | 182 | } |
nkeynes@103 | 183 | |
nkeynes@103 | 184 | if( front_buffer.render_addr == render_addr ) { |
nkeynes@103 | 185 | /* In case we've been asked to render to the current front buffer - |
nkeynes@103 | 186 | * invalidate the front buffer and render to the back buffer, ensuring |
nkeynes@103 | 187 | * we swap at the next frame display. |
nkeynes@103 | 188 | */ |
nkeynes@103 | 189 | front_buffer.render_addr = -1; |
nkeynes@103 | 190 | } |
nkeynes@103 | 191 | back_buffer.render_addr = render_addr; |
nkeynes@103 | 192 | back_buffer.width = width; |
nkeynes@103 | 193 | back_buffer.height = height; |
nkeynes@103 | 194 | back_buffer.colour_format = colour_format; |
nkeynes@161 | 195 | back_buffer.size = width * height * colour_format_bytes[colour_format]; |
nkeynes@103 | 196 | |
nkeynes@103 | 197 | /* Setup the display model */ |
nkeynes@103 | 198 | glDrawBuffer(GL_BACK); |
nkeynes@103 | 199 | glShadeModel(GL_SMOOTH); |
nkeynes@103 | 200 | glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); |
nkeynes@103 | 201 | glViewport( 0, 0, width, height ); |
nkeynes@103 | 202 | glMatrixMode(GL_PROJECTION); |
nkeynes@103 | 203 | glLoadIdentity(); |
nkeynes@169 | 204 | glOrtho( 0, width, height, 0, bgplanez, -4 ); |
nkeynes@103 | 205 | glMatrixMode(GL_MODELVIEW); |
nkeynes@103 | 206 | glLoadIdentity(); |
nkeynes@108 | 207 | glCullFace( GL_BACK ); |
nkeynes@308 | 208 | glEnable( GL_BLEND ); |
nkeynes@103 | 209 | |
nkeynes@103 | 210 | /* Clear out the buffers */ |
nkeynes@189 | 211 | glDisable( GL_SCISSOR_TEST ); |
nkeynes@103 | 212 | glClearColor(0.0f, 0.0f, 0.0f, 0.0f); |
nkeynes@299 | 213 | glClearDepth(0); |
nkeynes@103 | 214 | glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); |
nkeynes@308 | 215 | |
nkeynes@103 | 216 | } |
nkeynes@103 | 217 | |
nkeynes@128 | 218 | /** |
nkeynes@103 | 219 | * Render a complete scene into the OpenGL back buffer. |
nkeynes@103 | 220 | * Note: this will probably need to be broken up eventually once timings are |
nkeynes@100 | 221 | * determined. |
nkeynes@100 | 222 | */ |
nkeynes@103 | 223 | void pvr2_render_scene( ) |
nkeynes@100 | 224 | { |
nkeynes@103 | 225 | struct tile_descriptor *tile_desc = |
nkeynes@191 | 226 | (struct tile_descriptor *)mem_get_region(PVR2_RAM_BASE + MMIO_READ( PVR2, RENDER_TILEBASE )); |
nkeynes@100 | 227 | |
nkeynes@191 | 228 | uint32_t render_addr = MMIO_READ( PVR2, RENDER_ADDR1 ); |
nkeynes@103 | 229 | gboolean render_to_tex; |
nkeynes@103 | 230 | if( render_addr & 0x01000000 ) { |
nkeynes@103 | 231 | render_addr = (render_addr & 0x00FFFFFF) + PVR2_RAM_BASE_INT; |
nkeynes@103 | 232 | /* Heuristic - if we're rendering to the interlaced region we're |
nkeynes@103 | 233 | * probably creating a texture rather than rendering actual output. |
nkeynes@103 | 234 | * We can optimise for this case a little |
nkeynes@103 | 235 | */ |
nkeynes@103 | 236 | render_to_tex = TRUE; |
nkeynes@118 | 237 | WARN( "Render to texture not supported properly yet" ); |
nkeynes@103 | 238 | } else { |
nkeynes@103 | 239 | render_addr = (render_addr & 0x00FFFFFF) + PVR2_RAM_BASE; |
nkeynes@103 | 240 | render_to_tex = FALSE; |
nkeynes@103 | 241 | } |
nkeynes@128 | 242 | |
nkeynes@191 | 243 | float bgplanez = MMIO_READF( PVR2, RENDER_FARCLIP ); |
nkeynes@191 | 244 | uint32_t render_mode = MMIO_READ( PVR2, RENDER_MODE ); |
nkeynes@103 | 245 | int width = 640; /* FIXME - get this from the tile buffer */ |
nkeynes@103 | 246 | int height = 480; |
nkeynes@103 | 247 | int colour_format = pvr2_render_colour_format[render_mode&0x07]; |
nkeynes@103 | 248 | pvr2_render_prepare_context( render_addr, width, height, colour_format, |
nkeynes@128 | 249 | bgplanez, render_to_tex ); |
nkeynes@103 | 250 | |
nkeynes@191 | 251 | int clip_x = MMIO_READ( PVR2, RENDER_HCLIP ) & 0x03FF; |
nkeynes@191 | 252 | int clip_y = MMIO_READ( PVR2, RENDER_VCLIP ) & 0x03FF; |
nkeynes@191 | 253 | int clip_width = ((MMIO_READ( PVR2, RENDER_HCLIP ) >> 16) & 0x03FF) - clip_x + 1; |
nkeynes@191 | 254 | int clip_height= ((MMIO_READ( PVR2, RENDER_VCLIP ) >> 16) & 0x03FF) - clip_y + 1; |
nkeynes@103 | 255 | |
nkeynes@103 | 256 | /* Fog setup goes here */ |
nkeynes@103 | 257 | |
nkeynes@128 | 258 | /* Render the background plane */ |
nkeynes@191 | 259 | uint32_t bgplane_mode = MMIO_READ(PVR2, RENDER_BGPLANE); |
nkeynes@189 | 260 | uint32_t *display_list = |
nkeynes@191 | 261 | (uint32_t *)mem_get_region(PVR2_RAM_BASE + MMIO_READ( PVR2, RENDER_POLYBASE )); |
nkeynes@189 | 262 | |
nkeynes@189 | 263 | uint32_t *bgplane = display_list + (((bgplane_mode & 0x00FFFFFF)) >> 3) ; |
nkeynes@219 | 264 | render_backplane( bgplane, width, height, bgplane_mode ); |
nkeynes@128 | 265 | |
nkeynes@189 | 266 | pvr2_render_tilebuffer( width, height, clip_x, clip_y, |
nkeynes@189 | 267 | clip_x + clip_width, clip_y + clip_height ); |
nkeynes@103 | 268 | |
nkeynes@103 | 269 | /* Post-render cleanup and update */ |
nkeynes@103 | 270 | |
nkeynes@108 | 271 | /* Add frame, fps, etc data */ |
nkeynes@189 | 272 | //glDrawGrid( width, height ); |
nkeynes@132 | 273 | glPrintf( 4, 16, "Frame %d", pvr2_get_frame_count() ); |
nkeynes@103 | 274 | /* Generate end of render event */ |
nkeynes@100 | 275 | asic_event( EVENT_PVR_RENDER_DONE ); |
nkeynes@132 | 276 | DEBUG( "Rendered frame %d", pvr2_get_frame_count() ); |
nkeynes@100 | 277 | } |
nkeynes@103 | 278 | |
nkeynes@103 | 279 | |
nkeynes@103 | 280 | /** |
nkeynes@103 | 281 | * Flush the indicated render buffer back to PVR. Caller is responsible for |
nkeynes@103 | 282 | * tracking whether there is actually anything in the buffer. |
nkeynes@103 | 283 | * |
nkeynes@103 | 284 | * @param buffer A render buffer indicating the address to store to, and the |
nkeynes@103 | 285 | * format the data needs to be in. |
nkeynes@103 | 286 | * @param backBuffer TRUE to flush the back buffer, FALSE for |
nkeynes@103 | 287 | * the front buffer. |
nkeynes@103 | 288 | */ |
nkeynes@103 | 289 | void pvr2_render_copy_to_sh4( pvr2_render_buffer_t buffer, |
nkeynes@103 | 290 | gboolean backBuffer ) |
nkeynes@103 | 291 | { |
nkeynes@103 | 292 | if( buffer->render_addr == -1 ) |
nkeynes@103 | 293 | return; |
nkeynes@103 | 294 | GLenum type, format = GL_RGBA; |
nkeynes@219 | 295 | int line_size = buffer->width, size; |
nkeynes@103 | 296 | |
nkeynes@103 | 297 | switch( buffer->colour_format ) { |
nkeynes@103 | 298 | case COLFMT_RGB565: |
nkeynes@103 | 299 | type = GL_UNSIGNED_SHORT_5_6_5; |
nkeynes@103 | 300 | format = GL_RGB; |
nkeynes@219 | 301 | line_size <<= 1; |
nkeynes@103 | 302 | break; |
nkeynes@103 | 303 | case COLFMT_RGB888: |
nkeynes@103 | 304 | type = GL_UNSIGNED_INT; |
nkeynes@103 | 305 | format = GL_RGB; |
nkeynes@219 | 306 | line_size = (line_size<<1)+line_size; |
nkeynes@103 | 307 | break; |
nkeynes@103 | 308 | case COLFMT_ARGB1555: |
nkeynes@103 | 309 | type = GL_UNSIGNED_SHORT_5_5_5_1; |
nkeynes@219 | 310 | line_size <<= 1; |
nkeynes@103 | 311 | break; |
nkeynes@103 | 312 | case COLFMT_ARGB4444: |
nkeynes@103 | 313 | type = GL_UNSIGNED_SHORT_4_4_4_4; |
nkeynes@219 | 314 | line_size <<= 1; |
nkeynes@103 | 315 | break; |
nkeynes@103 | 316 | case COLFMT_ARGB8888: |
nkeynes@103 | 317 | type = GL_UNSIGNED_INT_8_8_8_8; |
nkeynes@219 | 318 | line_size <<= 2; |
nkeynes@103 | 319 | break; |
nkeynes@103 | 320 | } |
nkeynes@219 | 321 | size = line_size * buffer->height; |
nkeynes@103 | 322 | |
nkeynes@103 | 323 | if( backBuffer ) { |
nkeynes@103 | 324 | glFinish(); |
nkeynes@103 | 325 | glReadBuffer( GL_BACK ); |
nkeynes@103 | 326 | } else { |
nkeynes@103 | 327 | glReadBuffer( GL_FRONT ); |
nkeynes@103 | 328 | } |
nkeynes@103 | 329 | |
nkeynes@103 | 330 | if( buffer->render_addr & 0xFF000000 == 0x04000000 ) { |
nkeynes@103 | 331 | /* Interlaced buffer. Go the double copy... :( */ |
nkeynes@103 | 332 | char target[size]; |
nkeynes@103 | 333 | glReadPixels( 0, 0, buffer->width, buffer->height, format, type, target ); |
nkeynes@103 | 334 | pvr2_vram64_write( buffer->render_addr, target, size ); |
nkeynes@103 | 335 | } else { |
nkeynes@219 | 336 | /* Regular buffer */ |
nkeynes@219 | 337 | char target[size]; |
nkeynes@103 | 338 | glReadPixels( 0, 0, buffer->width, buffer->height, format, type, target ); |
nkeynes@219 | 339 | pvr2_vram_write_invert( buffer->render_addr, target, size, line_size ); |
nkeynes@103 | 340 | } |
nkeynes@103 | 341 | } |
nkeynes@103 | 342 | |
nkeynes@103 | 343 | |
nkeynes@103 | 344 | /** |
nkeynes@103 | 345 | * Copy data from PVR ram into the GL render buffer. |
nkeynes@103 | 346 | * |
nkeynes@103 | 347 | * @param buffer A render buffer indicating the address to read from, and the |
nkeynes@103 | 348 | * format the data is in. |
nkeynes@103 | 349 | * @param backBuffer TRUE to write the back buffer, FALSE for |
nkeynes@103 | 350 | * the front buffer. |
nkeynes@103 | 351 | */ |
nkeynes@103 | 352 | void pvr2_render_copy_from_sh4( pvr2_render_buffer_t buffer, |
nkeynes@103 | 353 | gboolean backBuffer ) |
nkeynes@103 | 354 | { |
nkeynes@103 | 355 | if( buffer->render_addr == -1 ) |
nkeynes@103 | 356 | return; |
nkeynes@103 | 357 | GLenum type, format = GL_RGBA; |
nkeynes@103 | 358 | int size = buffer->width * buffer->height; |
nkeynes@103 | 359 | |
nkeynes@103 | 360 | switch( buffer->colour_format ) { |
nkeynes@103 | 361 | case COLFMT_RGB565: |
nkeynes@103 | 362 | type = GL_UNSIGNED_SHORT_5_6_5; |
nkeynes@103 | 363 | format = GL_RGB; |
nkeynes@103 | 364 | size <<= 1; |
nkeynes@103 | 365 | break; |
nkeynes@103 | 366 | case COLFMT_RGB888: |
nkeynes@103 | 367 | type = GL_UNSIGNED_INT; |
nkeynes@103 | 368 | format = GL_RGB; |
nkeynes@103 | 369 | size = (size<<1)+size; |
nkeynes@103 | 370 | break; |
nkeynes@103 | 371 | case COLFMT_ARGB1555: |
nkeynes@103 | 372 | type = GL_UNSIGNED_SHORT_5_5_5_1; |
nkeynes@103 | 373 | size <<= 1; |
nkeynes@103 | 374 | break; |
nkeynes@103 | 375 | case COLFMT_ARGB4444: |
nkeynes@103 | 376 | type = GL_UNSIGNED_SHORT_4_4_4_4; |
nkeynes@103 | 377 | size <<= 1; |
nkeynes@103 | 378 | break; |
nkeynes@103 | 379 | case COLFMT_ARGB8888: |
nkeynes@103 | 380 | type = GL_UNSIGNED_INT_8_8_8_8; |
nkeynes@103 | 381 | size <<= 2; |
nkeynes@103 | 382 | break; |
nkeynes@103 | 383 | } |
nkeynes@103 | 384 | |
nkeynes@103 | 385 | if( backBuffer ) { |
nkeynes@103 | 386 | glDrawBuffer( GL_BACK ); |
nkeynes@103 | 387 | } else { |
nkeynes@103 | 388 | glDrawBuffer( GL_FRONT ); |
nkeynes@103 | 389 | } |
nkeynes@103 | 390 | |
nkeynes@103 | 391 | glRasterPos2i( 0, 0 ); |
nkeynes@103 | 392 | if( buffer->render_addr & 0xFF000000 == 0x04000000 ) { |
nkeynes@103 | 393 | /* Interlaced buffer. Go the double copy... :( */ |
nkeynes@103 | 394 | char target[size]; |
nkeynes@103 | 395 | pvr2_vram64_read( target, buffer->render_addr, size ); |
nkeynes@103 | 396 | glDrawPixels( buffer->width, buffer->height, |
nkeynes@103 | 397 | format, type, target ); |
nkeynes@103 | 398 | } else { |
nkeynes@103 | 399 | /* Regular buffer - go direct */ |
nkeynes@103 | 400 | char *target = mem_get_region( buffer->render_addr ); |
nkeynes@103 | 401 | glDrawPixels( buffer->width, buffer->height, |
nkeynes@103 | 402 | format, type, target ); |
nkeynes@103 | 403 | } |
nkeynes@103 | 404 | } |
.