nkeynes@100 | 1 | /**
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nkeynes@561 | 2 | * $Id$
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nkeynes@100 | 3 | *
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nkeynes@189 | 4 | * PVR2 Renderer support. This part is primarily
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nkeynes@100 | 5 | *
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nkeynes@100 | 6 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@100 | 7 | *
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nkeynes@100 | 8 | * This program is free software; you can redistribute it and/or modify
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nkeynes@100 | 9 | * it under the terms of the GNU General Public License as published by
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nkeynes@100 | 10 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@100 | 11 | * (at your option) any later version.
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nkeynes@100 | 12 | *
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nkeynes@100 | 13 | * This program is distributed in the hope that it will be useful,
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nkeynes@100 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@100 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@100 | 16 | * GNU General Public License for more details.
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nkeynes@100 | 17 | */
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nkeynes@100 | 18 |
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nkeynes@429 | 19 | #include <sys/time.h>
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nkeynes@429 | 20 | #include <time.h>
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nkeynes@100 | 21 | #include "pvr2/pvr2.h"
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nkeynes@100 | 22 | #include "asic.h"
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nkeynes@103 | 23 |
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nkeynes@103 | 24 |
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nkeynes@132 | 25 | int pvr2_render_trace = 0;
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nkeynes@108 | 26 |
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nkeynes@429 | 27 | #if 0
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nkeynes@429 | 28 | int pvr2_render_font_list = -1;
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nkeynes@132 | 29 | int glPrintf( int x, int y, const char *fmt, ... )
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nkeynes@108 | 30 | {
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nkeynes@108 | 31 | va_list ap; /* our argument pointer */
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nkeynes@108 | 32 | char buf[256];
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nkeynes@108 | 33 | int len;
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nkeynes@108 | 34 | if (fmt == NULL) /* if there is no string to draw do nothing */
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nkeynes@429 | 35 | return 0;
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nkeynes@108 | 36 | va_start(ap, fmt);
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nkeynes@108 | 37 | len = vsnprintf(buf, sizeof(buf), fmt, ap);
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nkeynes@108 | 38 | va_end(ap);
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nkeynes@108 | 39 |
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nkeynes@108 | 40 |
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nkeynes@108 | 41 | glPushAttrib(GL_LIST_BIT);
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nkeynes@132 | 42 | glDisable( GL_DEPTH_TEST );
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nkeynes@132 | 43 | glDisable( GL_BLEND );
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nkeynes@132 | 44 | glDisable( GL_TEXTURE_2D );
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nkeynes@132 | 45 | glDisable( GL_ALPHA_TEST );
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nkeynes@189 | 46 | glDisable( GL_CULL_FACE );
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nkeynes@108 | 47 | glListBase(pvr2_render_font_list - 32);
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nkeynes@132 | 48 | glColor3f( 1.0, 1.0, 1.0 );
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nkeynes@132 | 49 | glRasterPos2i( x, y );
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nkeynes@108 | 50 | glCallLists(len, GL_UNSIGNED_BYTE, buf);
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nkeynes@108 | 51 | glPopAttrib();
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nkeynes@108 | 52 |
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nkeynes@108 | 53 | return len;
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nkeynes@108 | 54 | }
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nkeynes@429 | 55 | #endif
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nkeynes@108 | 56 |
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nkeynes@189 | 57 | void glDrawGrid( int width, int height )
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nkeynes@189 | 58 | {
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nkeynes@189 | 59 | int i;
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nkeynes@189 | 60 | glDisable( GL_DEPTH_TEST );
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nkeynes@189 | 61 | glLineWidth(1);
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nkeynes@189 | 62 |
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nkeynes@189 | 63 | glBegin( GL_LINES );
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nkeynes@189 | 64 | glColor4f( 1.0, 1.0, 1.0, 1.0 );
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nkeynes@189 | 65 | for( i=32; i<width; i+=32 ) {
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nkeynes@189 | 66 | glVertex3f( i, 0.0, 3.0 );
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nkeynes@189 | 67 | glVertex3f( i,height-1, 3.0 );
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nkeynes@189 | 68 | }
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nkeynes@189 | 69 |
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nkeynes@189 | 70 | for( i=32; i<height; i+=32 ) {
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nkeynes@189 | 71 | glVertex3f( 0.0, i, 3.0 );
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nkeynes@189 | 72 | glVertex3f( width, i, 3.0 );
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nkeynes@189 | 73 | }
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nkeynes@189 | 74 | glEnd();
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nkeynes@189 | 75 |
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nkeynes@189 | 76 | }
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nkeynes@189 | 77 |
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nkeynes@103 | 78 | /**
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nkeynes@103 | 79 | * Prepare the OpenGL context to receive instructions for a new frame.
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nkeynes@103 | 80 | */
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nkeynes@352 | 81 | static void pvr2_render_prepare_context( render_buffer_t buffer,
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nkeynes@352 | 82 | float bgplanez, float nearz )
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nkeynes@103 | 83 | {
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nkeynes@103 | 84 | /* Select and initialize the render context */
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nkeynes@352 | 85 | display_driver->set_render_target(buffer);
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nkeynes@429 | 86 | #if 0
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nkeynes@132 | 87 | if( pvr2_render_font_list == -1 ) {
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nkeynes@132 | 88 | pvr2_render_font_list = video_glx_load_font( "-*-helvetica-*-r-normal--16-*-*-*-p-*-iso8859-1");
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nkeynes@132 | 89 | }
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nkeynes@429 | 90 | #endif
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nkeynes@337 | 91 | pvr2_check_palette_changed();
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nkeynes@337 | 92 |
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nkeynes@103 | 93 | /* Setup the display model */
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nkeynes@103 | 94 | glShadeModel(GL_SMOOTH);
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nkeynes@103 | 95 | glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
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nkeynes@103 | 96 | glMatrixMode(GL_PROJECTION);
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nkeynes@103 | 97 | glLoadIdentity();
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nkeynes@352 | 98 | glOrtho( 0, buffer->width, buffer->height, 0, -bgplanez, -nearz );
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nkeynes@103 | 99 | glMatrixMode(GL_MODELVIEW);
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nkeynes@103 | 100 | glLoadIdentity();
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nkeynes@108 | 101 | glCullFace( GL_BACK );
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nkeynes@308 | 102 | glEnable( GL_BLEND );
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nkeynes@103 | 103 |
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nkeynes@103 | 104 | /* Clear out the buffers */
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nkeynes@189 | 105 | glDisable( GL_SCISSOR_TEST );
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nkeynes@103 | 106 | glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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nkeynes@299 | 107 | glClearDepth(0);
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nkeynes@103 | 108 | glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
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nkeynes@477 | 109 | glEnableClientState( GL_COLOR_ARRAY );
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nkeynes@477 | 110 | glEnableClientState( GL_VERTEX_ARRAY );
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nkeynes@103 | 111 | }
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nkeynes@103 | 112 |
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nkeynes@128 | 113 | /**
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nkeynes@103 | 114 | * Render a complete scene into the OpenGL back buffer.
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nkeynes@103 | 115 | * Note: this will probably need to be broken up eventually once timings are
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nkeynes@100 | 116 | * determined.
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nkeynes@100 | 117 | */
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nkeynes@352 | 118 | void pvr2_render_scene( render_buffer_t buffer )
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nkeynes@100 | 119 | {
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nkeynes@429 | 120 | struct timeval tva, tvb;
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nkeynes@429 | 121 |
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nkeynes@429 | 122 | gettimeofday(&tva, NULL);
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nkeynes@100 | 123 |
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nkeynes@331 | 124 | float bgplanez = 1/MMIO_READF( PVR2, RENDER_FARCLIP );
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nkeynes@352 | 125 | pvr2_render_prepare_context( buffer, bgplanez, 0 );
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nkeynes@103 | 126 |
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nkeynes@191 | 127 | int clip_x = MMIO_READ( PVR2, RENDER_HCLIP ) & 0x03FF;
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nkeynes@191 | 128 | int clip_y = MMIO_READ( PVR2, RENDER_VCLIP ) & 0x03FF;
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nkeynes@191 | 129 | int clip_width = ((MMIO_READ( PVR2, RENDER_HCLIP ) >> 16) & 0x03FF) - clip_x + 1;
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nkeynes@191 | 130 | int clip_height= ((MMIO_READ( PVR2, RENDER_VCLIP ) >> 16) & 0x03FF) - clip_y + 1;
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nkeynes@103 | 131 |
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nkeynes@352 | 132 | /* Fog setup goes here? */
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nkeynes@103 | 133 |
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nkeynes@128 | 134 | /* Render the background plane */
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nkeynes@352 | 135 |
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nkeynes@191 | 136 | uint32_t bgplane_mode = MMIO_READ(PVR2, RENDER_BGPLANE);
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nkeynes@189 | 137 | uint32_t *display_list =
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nkeynes@191 | 138 | (uint32_t *)mem_get_region(PVR2_RAM_BASE + MMIO_READ( PVR2, RENDER_POLYBASE ));
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nkeynes@189 | 139 |
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nkeynes@189 | 140 | uint32_t *bgplane = display_list + (((bgplane_mode & 0x00FFFFFF)) >> 3) ;
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nkeynes@352 | 141 | render_backplane( bgplane, buffer->width, buffer->height, bgplane_mode );
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nkeynes@352 | 142 |
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nkeynes@352 | 143 | pvr2_render_tilebuffer( buffer->width, buffer->height, clip_x, clip_y,
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nkeynes@189 | 144 | clip_x + clip_width, clip_y + clip_height );
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nkeynes@429 | 145 |
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nkeynes@429 | 146 | gettimeofday( &tvb, NULL );
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nkeynes@429 | 147 | uint32_t ms = (tvb.tv_sec - tva.tv_sec) * 1000 +
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nkeynes@429 | 148 | (tvb.tv_usec - tva.tv_usec)/1000;
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nkeynes@429 | 149 | DEBUG( "Rendered frame %d to %08X in %dms", pvr2_get_frame_count(), buffer->address, ms );
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nkeynes@100 | 150 | }
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