filename | src/pvr2/glrender.c |
changeset | 1251:b8ab59d39756 |
prev | 1242:67909902ede9 |
next | 1256:a9d29fe74bf3 |
author | nkeynes |
date | Sat Mar 03 16:11:28 2012 +1000 (12 years ago) |
permissions | -rw-r--r-- |
last change | Support depth component 16 as well as 24 (add capability flag for the available bits) Put remaining TODOs inside HAVE_OPENGL_FIXEDFUNC blocks Add swap-buffer calls for EGL (does not appear to support rendering directly to front-buffer) |
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nkeynes@639 | 1 | /** |
nkeynes@639 | 2 | * $Id$ |
nkeynes@639 | 3 | * |
nkeynes@639 | 4 | * Standard OpenGL rendering engine. |
nkeynes@639 | 5 | * |
nkeynes@639 | 6 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@639 | 7 | * |
nkeynes@639 | 8 | * This program is free software; you can redistribute it and/or modify |
nkeynes@639 | 9 | * it under the terms of the GNU General Public License as published by |
nkeynes@639 | 10 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@639 | 11 | * (at your option) any later version. |
nkeynes@639 | 12 | * |
nkeynes@639 | 13 | * This program is distributed in the hope that it will be useful, |
nkeynes@639 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@639 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@639 | 16 | * GNU General Public License for more details. |
nkeynes@639 | 17 | */ |
nkeynes@639 | 18 | |
nkeynes@645 | 19 | #include <assert.h> |
nkeynes@669 | 20 | #include <sys/time.h> |
nkeynes@639 | 21 | #include "display.h" |
nkeynes@639 | 22 | #include "pvr2/pvr2.h" |
nkeynes@677 | 23 | #include "pvr2/pvr2mmio.h" |
nkeynes@1145 | 24 | #include "pvr2/glutil.h" |
nkeynes@639 | 25 | #include "pvr2/scene.h" |
nkeynes@1145 | 26 | #include "pvr2/tileiter.h" |
nkeynes@1207 | 27 | #include "pvr2/shaders.h" |
nkeynes@653 | 28 | |
nkeynes@1156 | 29 | #ifdef APPLE_BUILD |
nkeynes@1156 | 30 | #include "OpenGL/CGLCurrent.h" |
nkeynes@1156 | 31 | #include "OpenGL/CGLMacro.h" |
nkeynes@1156 | 32 | |
nkeynes@1156 | 33 | static CGLContextObj CGL_MACRO_CONTEXT; |
nkeynes@1156 | 34 | #endif |
nkeynes@1156 | 35 | |
nkeynes@1232 | 36 | #define IS_NONEMPTY_TILE_LIST(p) (IS_TILE_PTR(p) && ((*((uint32_t *)(pvr2_main_ram+(p))) >> 28) != 0x0F)) |
nkeynes@639 | 37 | |
nkeynes@645 | 38 | int pvr2_poly_depthmode[8] = { GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL, |
nkeynes@736 | 39 | GL_GREATER, GL_NOTEQUAL, GL_GEQUAL, |
nkeynes@736 | 40 | GL_ALWAYS }; |
nkeynes@645 | 41 | int pvr2_poly_srcblend[8] = { |
nkeynes@736 | 42 | GL_ZERO, GL_ONE, GL_DST_COLOR, GL_ONE_MINUS_DST_COLOR, |
nkeynes@736 | 43 | GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA, |
nkeynes@736 | 44 | GL_ONE_MINUS_DST_ALPHA }; |
nkeynes@645 | 45 | int pvr2_poly_dstblend[8] = { |
nkeynes@736 | 46 | GL_ZERO, GL_ONE, GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, |
nkeynes@736 | 47 | GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA, |
nkeynes@736 | 48 | GL_ONE_MINUS_DST_ALPHA }; |
nkeynes@645 | 49 | |
nkeynes@1140 | 50 | static gboolean have_shaders = FALSE; |
nkeynes@1154 | 51 | static int currentTexId = -1; |
nkeynes@1154 | 52 | |
nkeynes@1154 | 53 | static inline void bind_texture(int texid) |
nkeynes@1154 | 54 | { |
nkeynes@1154 | 55 | if( currentTexId != texid ) { |
nkeynes@1154 | 56 | currentTexId = texid; |
nkeynes@1154 | 57 | glBindTexture(GL_TEXTURE_2D, texid); |
nkeynes@1154 | 58 | } |
nkeynes@1154 | 59 | } |
nkeynes@1140 | 60 | |
nkeynes@639 | 61 | /** |
nkeynes@639 | 62 | * Clip the tile bounds to the clipping plane. |
nkeynes@639 | 63 | * @return TRUE if the tile was not clipped completely. |
nkeynes@639 | 64 | */ |
nkeynes@1232 | 65 | static gboolean clip_tile_bounds( uint32_t *tile, uint32_t *clip ) |
nkeynes@639 | 66 | { |
nkeynes@639 | 67 | if( tile[0] < clip[0] ) tile[0] = clip[0]; |
nkeynes@639 | 68 | if( tile[1] > clip[1] ) tile[1] = clip[1]; |
nkeynes@639 | 69 | if( tile[2] < clip[2] ) tile[2] = clip[2]; |
nkeynes@639 | 70 | if( tile[3] > clip[3] ) tile[3] = clip[3]; |
nkeynes@639 | 71 | return tile[0] < tile[1] && tile[2] < tile[3]; |
nkeynes@639 | 72 | } |
nkeynes@639 | 73 | |
nkeynes@1145 | 74 | static void drawrect2d( uint32_t tile_bounds[], float z ) |
nkeynes@1145 | 75 | { |
nkeynes@1251 | 76 | /* FIXME: Find a non-fixed-func way to do this */ |
nkeynes@1251 | 77 | #ifdef HAVE_OPENGL_FIXEDFUNC |
nkeynes@1232 | 78 | glBegin( GL_TRIANGLE_STRIP ); |
nkeynes@1145 | 79 | glVertex3f( tile_bounds[0], tile_bounds[2], z ); |
nkeynes@1145 | 80 | glVertex3f( tile_bounds[1], tile_bounds[2], z ); |
nkeynes@1232 | 81 | glVertex3f( tile_bounds[0], tile_bounds[3], z ); |
nkeynes@1145 | 82 | glVertex3f( tile_bounds[1], tile_bounds[3], z ); |
nkeynes@1145 | 83 | glEnd(); |
nkeynes@1251 | 84 | #endif |
nkeynes@1145 | 85 | } |
nkeynes@1145 | 86 | |
nkeynes@1154 | 87 | static void pvr2_scene_load_textures() |
nkeynes@645 | 88 | { |
nkeynes@645 | 89 | int i; |
nkeynes@886 | 90 | |
nkeynes@1135 | 91 | texcache_begin_scene( MMIO_READ( PVR2, RENDER_PALETTE ) & 0x03, |
nkeynes@886 | 92 | (MMIO_READ( PVR2, RENDER_TEXSIZE ) & 0x003F) << 5 ); |
nkeynes@886 | 93 | |
nkeynes@645 | 94 | for( i=0; i < pvr2_scene.poly_count; i++ ) { |
nkeynes@736 | 95 | struct polygon_struct *poly = &pvr2_scene.poly_array[i]; |
nkeynes@736 | 96 | if( POLY1_TEXTURED(poly->context[0]) ) { |
nkeynes@1135 | 97 | poly->tex_id = texcache_get_texture( poly->context[1], poly->context[2] ); |
nkeynes@736 | 98 | if( poly->mod_vertex_index != -1 ) { |
nkeynes@863 | 99 | if( pvr2_scene.shadow_mode == SHADOW_FULL ) { |
nkeynes@1135 | 100 | poly->mod_tex_id = texcache_get_texture( poly->context[3], poly->context[4] ); |
nkeynes@863 | 101 | } else { |
nkeynes@863 | 102 | poly->mod_tex_id = poly->tex_id; |
nkeynes@863 | 103 | } |
nkeynes@736 | 104 | } |
nkeynes@736 | 105 | } else { |
nkeynes@1138 | 106 | poly->tex_id = 0; |
nkeynes@1138 | 107 | poly->mod_tex_id = 0; |
nkeynes@736 | 108 | } |
nkeynes@645 | 109 | } |
nkeynes@645 | 110 | } |
nkeynes@645 | 111 | |
nkeynes@645 | 112 | |
nkeynes@639 | 113 | /** |
nkeynes@639 | 114 | * Once-off call to setup the OpenGL context. |
nkeynes@639 | 115 | */ |
nkeynes@639 | 116 | void pvr2_setup_gl_context() |
nkeynes@639 | 117 | { |
nkeynes@1140 | 118 | if( glsl_is_supported() && isGLMultitextureSupported() ) { |
nkeynes@1130 | 119 | if( !glsl_load_shaders( ) ) { |
nkeynes@665 | 120 | WARN( "Unable to load GL shaders" ); |
nkeynes@1140 | 121 | } else { |
nkeynes@1251 | 122 | INFO( "Shaders loaded successfully" ); |
nkeynes@1140 | 123 | have_shaders = TRUE; |
nkeynes@665 | 124 | } |
nkeynes@1251 | 125 | } else { |
nkeynes@1251 | 126 | INFO( "Shaders not supported" ); |
nkeynes@665 | 127 | } |
nkeynes@736 | 128 | |
nkeynes@1156 | 129 | #ifdef APPLE_BUILD |
nkeynes@1156 | 130 | CGL_MACRO_CONTEXT = CGLGetCurrentContext(); |
nkeynes@1156 | 131 | #endif |
nkeynes@1233 | 132 | texcache_gl_init(have_shaders); // Allocate texture IDs |
nkeynes@1236 | 133 | |
nkeynes@1236 | 134 | /* Global settings */ |
nkeynes@1133 | 135 | glDisable( GL_CULL_FACE ); |
nkeynes@639 | 136 | glEnable( GL_BLEND ); |
nkeynes@1236 | 137 | glClearColor(0.0f, 0.0f, 0.0f, 0.0f); |
nkeynes@639 | 138 | |
nkeynes@687 | 139 | #ifdef HAVE_OPENGL_CLAMP_COLOR |
nkeynes@687 | 140 | if( isGLExtensionSupported("GL_ARB_color_buffer_float") ) { |
nkeynes@687 | 141 | glClampColorARB(GL_CLAMP_VERTEX_COLOR_ARB, GL_FALSE ); |
nkeynes@687 | 142 | glClampColorARB(GL_CLAMP_FRAGMENT_COLOR_ARB, GL_FALSE ); |
nkeynes@687 | 143 | } |
nkeynes@687 | 144 | #endif |
nkeynes@653 | 145 | |
nkeynes@1242 | 146 | #ifdef HAVE_OPENGL_FIXEDFUNC |
nkeynes@1236 | 147 | /* Setup defaults for perspective correction + matrices */ |
nkeynes@1236 | 148 | glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); |
nkeynes@1236 | 149 | glMatrixMode(GL_MODELVIEW); |
nkeynes@1236 | 150 | glLoadIdentity(); |
nkeynes@1236 | 151 | glMatrixMode(GL_PROJECTION); |
nkeynes@1236 | 152 | #endif |
nkeynes@1236 | 153 | |
nkeynes@639 | 154 | |
nkeynes@1232 | 155 | #ifdef HAVE_OPENGL_CLEAR_DEPTHF |
nkeynes@1232 | 156 | glClearDepthf(0); |
nkeynes@1232 | 157 | #else |
nkeynes@639 | 158 | glClearDepth(0); |
nkeynes@1232 | 159 | #endif |
nkeynes@639 | 160 | glClearStencil(0); |
nkeynes@639 | 161 | } |
nkeynes@639 | 162 | |
nkeynes@864 | 163 | /** |
nkeynes@864 | 164 | * Setup the basic context that's shared between normal and modified modes - |
nkeynes@864 | 165 | * depth, culling |
nkeynes@864 | 166 | */ |
nkeynes@1137 | 167 | static void render_set_base_context( uint32_t poly1, gboolean set_depth ) |
nkeynes@864 | 168 | { |
nkeynes@1137 | 169 | if( set_depth ) { |
nkeynes@865 | 170 | glDepthFunc( POLY1_DEPTH_MODE(poly1) ); |
nkeynes@865 | 171 | } |
nkeynes@865 | 172 | |
nkeynes@864 | 173 | glDepthMask( POLY1_DEPTH_WRITE(poly1) ? GL_TRUE : GL_FALSE ); |
nkeynes@865 | 174 | } |
nkeynes@864 | 175 | |
nkeynes@865 | 176 | /** |
nkeynes@865 | 177 | * Setup the texture/shading settings (TSP) which vary between mod/unmod modes. |
nkeynes@865 | 178 | */ |
nkeynes@1154 | 179 | static void render_set_tsp_context( uint32_t poly1, uint32_t poly2 ) |
nkeynes@865 | 180 | { |
nkeynes@1251 | 181 | #ifdef HAVE_OPENGL_FIXEDFUNC |
nkeynes@863 | 182 | glShadeModel( POLY1_SHADE_MODEL(poly1) ); |
nkeynes@1140 | 183 | |
nkeynes@1219 | 184 | if( !have_shaders ) { |
nkeynes@1219 | 185 | if( POLY1_TEXTURED(poly1) ) { |
nkeynes@1219 | 186 | if( POLY2_TEX_BLEND(poly2) == 2 ) |
nkeynes@1219 | 187 | glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL ); |
nkeynes@1219 | 188 | else |
nkeynes@1219 | 189 | glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); |
nkeynes@1232 | 190 | |
nkeynes@1232 | 191 | } |
nkeynes@1140 | 192 | |
nkeynes@1232 | 193 | switch( POLY2_FOG_MODE(poly2) ) { |
nkeynes@1232 | 194 | case PVR2_POLY_FOG_LOOKUP: |
nkeynes@1232 | 195 | glFogfv( GL_FOG_COLOR, pvr2_scene.fog_lut_colour ); |
nkeynes@1232 | 196 | break; |
nkeynes@1232 | 197 | case PVR2_POLY_FOG_VERTEX: |
nkeynes@1232 | 198 | glFogfv( GL_FOG_COLOR, pvr2_scene.fog_vert_colour ); |
nkeynes@1232 | 199 | break; |
nkeynes@1232 | 200 | } |
nkeynes@863 | 201 | } |
nkeynes@1232 | 202 | #endif |
nkeynes@653 | 203 | |
nkeynes@863 | 204 | int srcblend = POLY2_SRC_BLEND(poly2); |
nkeynes@863 | 205 | int destblend = POLY2_DEST_BLEND(poly2); |
nkeynes@863 | 206 | glBlendFunc( srcblend, destblend ); |
nkeynes@863 | 207 | |
nkeynes@863 | 208 | if( POLY2_SRC_BLEND_TARGET(poly2) || POLY2_DEST_BLEND_TARGET(poly2) ) { |
nkeynes@863 | 209 | WARN( "Accumulation buffer not supported" ); |
nkeynes@863 | 210 | } |
nkeynes@863 | 211 | } |
nkeynes@863 | 212 | |
nkeynes@645 | 213 | /** |
nkeynes@645 | 214 | * Setup the GL context for the supplied polygon context. |
nkeynes@645 | 215 | * @param context pointer to 3 or 5 words of polygon context |
nkeynes@865 | 216 | * @param depth_mode force depth mode, or 0 to use the polygon's |
nkeynes@865 | 217 | * depth mode. |
nkeynes@645 | 218 | */ |
nkeynes@1154 | 219 | static void render_set_context( uint32_t *context, gboolean set_depth ) |
nkeynes@645 | 220 | { |
nkeynes@1137 | 221 | render_set_base_context(context[0], set_depth); |
nkeynes@1137 | 222 | render_set_tsp_context(context[0],context[1]); |
nkeynes@645 | 223 | } |
nkeynes@645 | 224 | |
nkeynes@1133 | 225 | static inline void gl_draw_vertexes( struct polygon_struct *poly ) |
nkeynes@1133 | 226 | { |
nkeynes@1133 | 227 | do { |
nkeynes@1133 | 228 | glDrawArrays(GL_TRIANGLE_STRIP, poly->vertex_index, poly->vertex_count); |
nkeynes@1133 | 229 | poly = poly->sub_next; |
nkeynes@1133 | 230 | } while( poly != NULL ); |
nkeynes@1133 | 231 | } |
nkeynes@1133 | 232 | |
nkeynes@1133 | 233 | static inline void gl_draw_mod_vertexes( struct polygon_struct *poly ) |
nkeynes@1133 | 234 | { |
nkeynes@1133 | 235 | do { |
nkeynes@1133 | 236 | glDrawArrays(GL_TRIANGLE_STRIP, poly->mod_vertex_index, poly->vertex_count); |
nkeynes@1133 | 237 | poly = poly->sub_next; |
nkeynes@1133 | 238 | } while( poly != NULL ); |
nkeynes@1133 | 239 | } |
nkeynes@645 | 240 | |
nkeynes@1153 | 241 | static void gl_render_poly( struct polygon_struct *poly, gboolean set_depth) |
nkeynes@639 | 242 | { |
nkeynes@1133 | 243 | if( poly->vertex_count == 0 ) |
nkeynes@1133 | 244 | return; /* Culled */ |
nkeynes@1133 | 245 | |
nkeynes@1154 | 246 | bind_texture(poly->tex_id); |
nkeynes@863 | 247 | if( poly->mod_vertex_index == -1 ) { |
nkeynes@1137 | 248 | render_set_context( poly->context, set_depth ); |
nkeynes@1133 | 249 | gl_draw_vertexes(poly); |
nkeynes@864 | 250 | } else { |
nkeynes@864 | 251 | glEnable( GL_STENCIL_TEST ); |
nkeynes@1137 | 252 | render_set_base_context( poly->context[0], set_depth ); |
nkeynes@1137 | 253 | render_set_tsp_context( poly->context[0], poly->context[1] ); |
nkeynes@864 | 254 | glStencilFunc(GL_EQUAL, 0, 2); |
nkeynes@1133 | 255 | gl_draw_vertexes(poly); |
nkeynes@863 | 256 | |
nkeynes@863 | 257 | if( pvr2_scene.shadow_mode == SHADOW_FULL ) { |
nkeynes@1154 | 258 | bind_texture(poly->mod_tex_id); |
nkeynes@1137 | 259 | render_set_tsp_context( poly->context[0], poly->context[3] ); |
nkeynes@863 | 260 | } |
nkeynes@864 | 261 | glStencilFunc(GL_EQUAL, 2, 2); |
nkeynes@1133 | 262 | gl_draw_mod_vertexes(poly); |
nkeynes@1136 | 263 | glDisable( GL_STENCIL_TEST ); |
nkeynes@863 | 264 | } |
nkeynes@639 | 265 | } |
nkeynes@639 | 266 | |
nkeynes@687 | 267 | |
nkeynes@1145 | 268 | static void gl_render_modifier_polygon( struct polygon_struct *poly, uint32_t tile_bounds[] ) |
nkeynes@864 | 269 | { |
nkeynes@864 | 270 | /* A bit of explanation: |
nkeynes@864 | 271 | * In theory it works like this: generate a 1-bit stencil for each polygon |
nkeynes@864 | 272 | * volume, and then AND or OR it against the overall 1-bit tile stencil at |
nkeynes@864 | 273 | * the end of the volume. |
nkeynes@864 | 274 | * |
nkeynes@864 | 275 | * The implementation here uses a 2-bit stencil buffer, where each volume |
nkeynes@864 | 276 | * is drawn using only stencil bit 0, and then a 'flush' polygon is drawn |
nkeynes@864 | 277 | * to update bit 1 accordingly and clear bit 0. |
nkeynes@864 | 278 | * |
nkeynes@864 | 279 | * This could probably be more efficient, but at least it works correctly |
nkeynes@864 | 280 | * now :) |
nkeynes@864 | 281 | */ |
nkeynes@864 | 282 | |
nkeynes@1133 | 283 | if( poly->vertex_count == 0 ) |
nkeynes@1133 | 284 | return; /* Culled */ |
nkeynes@1133 | 285 | |
nkeynes@1133 | 286 | gl_draw_vertexes(poly); |
nkeynes@1133 | 287 | |
nkeynes@1133 | 288 | |
nkeynes@864 | 289 | |
nkeynes@864 | 290 | int poly_type = POLY1_VOLUME_MODE(poly->context[0]); |
nkeynes@864 | 291 | if( poly_type == PVR2_VOLUME_REGION0 ) { |
nkeynes@864 | 292 | /* 00 => 00 |
nkeynes@864 | 293 | * 01 => 00 |
nkeynes@864 | 294 | * 10 => 10 |
nkeynes@864 | 295 | * 11 => 00 |
nkeynes@864 | 296 | */ |
nkeynes@864 | 297 | glStencilMask( 0x03 ); |
nkeynes@864 | 298 | glStencilFunc(GL_EQUAL, 0x02, 0x03); |
nkeynes@864 | 299 | glStencilOp(GL_ZERO, GL_KEEP, GL_KEEP); |
nkeynes@864 | 300 | glDisable( GL_DEPTH_TEST ); |
nkeynes@864 | 301 | |
nkeynes@864 | 302 | drawrect2d( tile_bounds, pvr2_scene.bounds[4] ); |
nkeynes@864 | 303 | |
nkeynes@864 | 304 | glEnable( GL_DEPTH_TEST ); |
nkeynes@864 | 305 | glStencilMask( 0x01 ); |
nkeynes@864 | 306 | glStencilFunc( GL_ALWAYS, 0, 1 ); |
nkeynes@864 | 307 | glStencilOp( GL_KEEP,GL_INVERT, GL_KEEP ); |
nkeynes@864 | 308 | } else if( poly_type == PVR2_VOLUME_REGION1 ) { |
nkeynes@864 | 309 | /* This is harder with the standard stencil ops - do it in two passes |
nkeynes@864 | 310 | * 00 => 00 | 00 => 10 |
nkeynes@864 | 311 | * 01 => 10 | 01 => 10 |
nkeynes@864 | 312 | * 10 => 10 | 10 => 00 |
nkeynes@864 | 313 | * 11 => 10 | 11 => 10 |
nkeynes@864 | 314 | */ |
nkeynes@864 | 315 | glStencilMask( 0x02 ); |
nkeynes@864 | 316 | glStencilOp( GL_INVERT, GL_INVERT, GL_INVERT ); |
nkeynes@864 | 317 | glDisable( GL_DEPTH_TEST ); |
nkeynes@864 | 318 | |
nkeynes@864 | 319 | drawrect2d( tile_bounds, pvr2_scene.bounds[4] ); |
nkeynes@864 | 320 | |
nkeynes@864 | 321 | glStencilMask( 0x03 ); |
nkeynes@864 | 322 | glStencilFunc( GL_NOTEQUAL,0x02, 0x03); |
nkeynes@864 | 323 | glStencilOp( GL_ZERO, GL_REPLACE, GL_REPLACE ); |
nkeynes@864 | 324 | |
nkeynes@864 | 325 | drawrect2d( tile_bounds, pvr2_scene.bounds[4] ); |
nkeynes@864 | 326 | |
nkeynes@864 | 327 | glEnable( GL_DEPTH_TEST ); |
nkeynes@864 | 328 | glStencilMask( 0x01 ); |
nkeynes@864 | 329 | glStencilFunc( GL_ALWAYS, 0, 1 ); |
nkeynes@864 | 330 | glStencilOp( GL_KEEP,GL_INVERT, GL_KEEP ); |
nkeynes@864 | 331 | } |
nkeynes@864 | 332 | } |
nkeynes@864 | 333 | |
nkeynes@1145 | 334 | static void gl_render_bkgnd( struct polygon_struct *poly ) |
nkeynes@863 | 335 | { |
nkeynes@1154 | 336 | bind_texture(poly->tex_id); |
nkeynes@1145 | 337 | render_set_tsp_context( poly->context[0], poly->context[1] ); |
nkeynes@1145 | 338 | glDisable( GL_DEPTH_TEST ); |
nkeynes@1145 | 339 | glBlendFunc( GL_ONE, GL_ZERO ); |
nkeynes@1145 | 340 | gl_draw_vertexes(poly); |
nkeynes@1145 | 341 | glEnable( GL_DEPTH_TEST ); |
nkeynes@1145 | 342 | } |
nkeynes@1145 | 343 | |
nkeynes@1154 | 344 | void gl_render_triangle( struct polygon_struct *poly, int index ) |
nkeynes@1154 | 345 | { |
nkeynes@1154 | 346 | bind_texture(poly->tex_id); |
nkeynes@1154 | 347 | render_set_tsp_context( poly->context[0], poly->context[1] ); |
nkeynes@1154 | 348 | glDrawArrays(GL_TRIANGLE_STRIP, poly->vertex_index + index, 3 ); |
nkeynes@1154 | 349 | |
nkeynes@1154 | 350 | } |
nkeynes@1154 | 351 | |
nkeynes@1145 | 352 | void gl_render_tilelist( pvraddr_t tile_entry, gboolean set_depth ) |
nkeynes@1145 | 353 | { |
nkeynes@1145 | 354 | tileentryiter list; |
nkeynes@1145 | 355 | |
nkeynes@1145 | 356 | FOREACH_TILEENTRY(list, tile_entry) { |
nkeynes@1145 | 357 | struct polygon_struct *poly = pvr2_scene.buf_to_poly_map[TILEENTRYITER_POLYADDR(list)]; |
nkeynes@1145 | 358 | if( poly != NULL ) { |
nkeynes@1145 | 359 | do { |
nkeynes@1145 | 360 | gl_render_poly(poly, set_depth); |
nkeynes@1145 | 361 | poly = poly->next; |
nkeynes@1145 | 362 | } while( list.strip_count-- > 0 ); |
nkeynes@1145 | 363 | } |
nkeynes@1145 | 364 | } |
nkeynes@1145 | 365 | } |
nkeynes@1145 | 366 | |
nkeynes@1145 | 367 | /** |
nkeynes@1145 | 368 | * Render the tilelist with depthbuffer updates only. |
nkeynes@1145 | 369 | */ |
nkeynes@1145 | 370 | static void gl_render_tilelist_depthonly( pvraddr_t tile_entry ) |
nkeynes@1145 | 371 | { |
nkeynes@1145 | 372 | tileentryiter list; |
nkeynes@1145 | 373 | |
nkeynes@1145 | 374 | FOREACH_TILEENTRY(list, tile_entry) { |
nkeynes@1145 | 375 | struct polygon_struct *poly = pvr2_scene.buf_to_poly_map[TILEENTRYITER_POLYADDR(list)]; |
nkeynes@1145 | 376 | if( poly != NULL ) { |
nkeynes@1145 | 377 | do { |
nkeynes@1145 | 378 | render_set_base_context(poly->context[0],TRUE); |
nkeynes@1145 | 379 | gl_draw_vertexes(poly); |
nkeynes@1145 | 380 | poly = poly->next; |
nkeynes@1145 | 381 | } while( list.strip_count-- > 0 ); |
nkeynes@1145 | 382 | } |
nkeynes@1145 | 383 | } |
nkeynes@1145 | 384 | } |
nkeynes@1145 | 385 | |
nkeynes@1145 | 386 | static void gl_render_modifier_tilelist( pvraddr_t tile_entry, uint32_t tile_bounds[] ) |
nkeynes@1145 | 387 | { |
nkeynes@1145 | 388 | tileentryiter list; |
nkeynes@863 | 389 | |
nkeynes@1145 | 390 | FOREACH_TILEENTRY(list, tile_entry ) { |
nkeynes@1145 | 391 | struct polygon_struct *poly = pvr2_scene.buf_to_poly_map[TILEENTRYITER_POLYADDR(list)]; |
nkeynes@1145 | 392 | if( poly != NULL ) { |
nkeynes@1145 | 393 | do { |
nkeynes@864 | 394 | gl_render_modifier_polygon( poly, tile_bounds ); |
nkeynes@863 | 395 | poly = poly->next; |
nkeynes@1145 | 396 | } while( list.strip_count-- > 0 ); |
nkeynes@863 | 397 | } |
nkeynes@863 | 398 | } |
nkeynes@1232 | 399 | } |
nkeynes@1232 | 400 | |
nkeynes@1232 | 401 | |
nkeynes@1232 | 402 | #ifdef HAVE_OPENGL_FIXEDFUNC |
nkeynes@1232 | 403 | void pvr2_scene_setup_fixed( GLfloat *viewMatrix ) |
nkeynes@1232 | 404 | { |
nkeynes@1232 | 405 | glLoadMatrixf(viewMatrix); |
nkeynes@1236 | 406 | glEnable( GL_DEPTH_TEST ); |
nkeynes@1232 | 407 | |
nkeynes@1232 | 408 | glEnable( GL_FOG ); |
nkeynes@1232 | 409 | glFogi(GL_FOG_COORDINATE_SOURCE_EXT, GL_FOG_COORDINATE_EXT); |
nkeynes@1232 | 410 | glFogi(GL_FOG_MODE, GL_LINEAR); |
nkeynes@1232 | 411 | glFogf(GL_FOG_START, 0.0); |
nkeynes@1232 | 412 | glFogf(GL_FOG_END, 1.0); |
nkeynes@1232 | 413 | |
nkeynes@1232 | 414 | glEnable( GL_ALPHA_TEST ); |
nkeynes@1232 | 415 | glAlphaFunc( GL_GEQUAL, 0 ); |
nkeynes@1232 | 416 | |
nkeynes@1232 | 417 | glEnable( GL_COLOR_SUM ); |
nkeynes@1232 | 418 | |
nkeynes@1232 | 419 | glEnableClientState( GL_VERTEX_ARRAY ); |
nkeynes@1232 | 420 | glEnableClientState( GL_COLOR_ARRAY ); |
nkeynes@1232 | 421 | glEnableClientState( GL_TEXTURE_COORD_ARRAY ); |
nkeynes@1232 | 422 | glEnableClientState( GL_SECONDARY_COLOR_ARRAY ); |
nkeynes@1232 | 423 | glEnableClientState( GL_FOG_COORDINATE_ARRAY_EXT ); |
nkeynes@1232 | 424 | |
nkeynes@1232 | 425 | /* Vertex array pointers */ |
nkeynes@1232 | 426 | glVertexPointer(3, GL_FLOAT, sizeof(struct vertex_struct), &pvr2_scene.vertex_array[0].x); |
nkeynes@1232 | 427 | glColorPointer(4, GL_FLOAT, sizeof(struct vertex_struct), &pvr2_scene.vertex_array[0].rgba[0]); |
nkeynes@1233 | 428 | glTexCoordPointer(2, GL_FLOAT, sizeof(struct vertex_struct), &pvr2_scene.vertex_array[0].u); |
nkeynes@1232 | 429 | glSecondaryColorPointerEXT(3, GL_FLOAT, sizeof(struct vertex_struct), pvr2_scene.vertex_array[0].offset_rgba ); |
nkeynes@1232 | 430 | glFogCoordPointerEXT(GL_FLOAT, sizeof(struct vertex_struct), &pvr2_scene.vertex_array[0].offset_rgba[3] ); |
nkeynes@1232 | 431 | } |
nkeynes@1232 | 432 | |
nkeynes@1232 | 433 | void pvr2_scene_set_alpha_fixed( float alphaRef ) |
nkeynes@1232 | 434 | { |
nkeynes@1232 | 435 | glAlphaFunc( GL_GEQUAL, alphaRef ); |
nkeynes@1232 | 436 | } |
nkeynes@1232 | 437 | |
nkeynes@1232 | 438 | void pvr2_scene_cleanup_fixed() |
nkeynes@1232 | 439 | { |
nkeynes@1232 | 440 | glDisable( GL_COLOR_SUM ); |
nkeynes@1232 | 441 | glDisable( GL_FOG ); |
nkeynes@1232 | 442 | glDisable( GL_ALPHA_TEST ); |
nkeynes@1236 | 443 | glDisable( GL_DEPTH_TEST ); |
nkeynes@1232 | 444 | |
nkeynes@1232 | 445 | glDisableClientState( GL_VERTEX_ARRAY ); |
nkeynes@1232 | 446 | glDisableClientState( GL_COLOR_ARRAY ); |
nkeynes@1232 | 447 | glDisableClientState( GL_TEXTURE_COORD_ARRAY ); |
nkeynes@1232 | 448 | glDisableClientState( GL_SECONDARY_COLOR_ARRAY ); |
nkeynes@1232 | 449 | glDisableClientState( GL_FOG_COORDINATE_ARRAY_EXT ); |
nkeynes@1236 | 450 | |
nkeynes@1232 | 451 | } |
nkeynes@1232 | 452 | #else |
nkeynes@1238 | 453 | void pvr2_scene_setup_fixed( GLfloat *viewMatrix ) |
nkeynes@1232 | 454 | { |
nkeynes@1232 | 455 | } |
nkeynes@1232 | 456 | void pvr2_scene_set_alpha_fixed( float alphaRef ) |
nkeynes@1232 | 457 | { |
nkeynes@1232 | 458 | } |
nkeynes@1232 | 459 | void pvr2_scene_cleanup_fixed() |
nkeynes@1232 | 460 | { |
nkeynes@1232 | 461 | } |
nkeynes@1232 | 462 | #endif |
nkeynes@1232 | 463 | |
nkeynes@1232 | 464 | void pvr2_scene_setup_shader( GLfloat *viewMatrix ) |
nkeynes@1232 | 465 | { |
nkeynes@1236 | 466 | glEnable( GL_DEPTH_TEST ); |
nkeynes@1236 | 467 | |
nkeynes@1232 | 468 | glsl_use_pvr2_shader(); |
nkeynes@1232 | 469 | glsl_set_pvr2_shader_view_matrix(viewMatrix); |
nkeynes@1232 | 470 | glsl_set_pvr2_shader_fog_colour1(pvr2_scene.fog_vert_colour); |
nkeynes@1232 | 471 | glsl_set_pvr2_shader_fog_colour2(pvr2_scene.fog_lut_colour); |
nkeynes@1232 | 472 | glsl_set_pvr2_shader_in_vertex_vec3_pointer(&pvr2_scene.vertex_array[0].x, sizeof(struct vertex_struct)); |
nkeynes@1232 | 473 | glsl_set_pvr2_shader_in_colour_pointer(&pvr2_scene.vertex_array[0].rgba[0], sizeof(struct vertex_struct)); |
nkeynes@1232 | 474 | glsl_set_pvr2_shader_in_colour2_pointer(&pvr2_scene.vertex_array[0].offset_rgba[0], sizeof(struct vertex_struct)); |
nkeynes@1232 | 475 | glsl_set_pvr2_shader_in_texcoord_pointer(&pvr2_scene.vertex_array[0].u, sizeof(struct vertex_struct)); |
nkeynes@1232 | 476 | glsl_set_pvr2_shader_alpha_ref(0.0); |
nkeynes@1232 | 477 | glsl_set_pvr2_shader_primary_texture(0); |
nkeynes@1232 | 478 | glsl_set_pvr2_shader_palette_texture(1); |
nkeynes@1232 | 479 | } |
nkeynes@1232 | 480 | |
nkeynes@1232 | 481 | void pvr2_scene_cleanup_shader( ) |
nkeynes@1232 | 482 | { |
nkeynes@1232 | 483 | glsl_clear_shader(); |
nkeynes@1236 | 484 | |
nkeynes@1236 | 485 | glDisable( GL_DEPTH_TEST ); |
nkeynes@1232 | 486 | } |
nkeynes@1232 | 487 | |
nkeynes@1232 | 488 | void pvr2_scene_set_alpha_shader( float alphaRef ) |
nkeynes@1232 | 489 | { |
nkeynes@1232 | 490 | glsl_set_pvr2_shader_alpha_ref(alphaRef); |
nkeynes@639 | 491 | } |
nkeynes@639 | 492 | |
nkeynes@639 | 493 | /** |
nkeynes@639 | 494 | * Render the currently defined scene in pvr2_scene |
nkeynes@639 | 495 | */ |
nkeynes@639 | 496 | void pvr2_scene_render( render_buffer_t buffer ) |
nkeynes@639 | 497 | { |
nkeynes@639 | 498 | /* Scene setup */ |
nkeynes@645 | 499 | struct timeval start_tv, tex_tv, end_tv; |
nkeynes@1232 | 500 | int i; |
nkeynes@1232 | 501 | GLfloat viewMatrix[16]; |
nkeynes@1232 | 502 | uint32_t clip_bounds[4]; |
nkeynes@1232 | 503 | |
nkeynes@645 | 504 | |
nkeynes@645 | 505 | gettimeofday(&start_tv, NULL); |
nkeynes@639 | 506 | display_driver->set_render_target(buffer); |
nkeynes@639 | 507 | pvr2_check_palette_changed(); |
nkeynes@645 | 508 | pvr2_scene_load_textures(); |
nkeynes@1154 | 509 | currentTexId = -1; |
nkeynes@736 | 510 | |
nkeynes@645 | 511 | gettimeofday( &tex_tv, NULL ); |
nkeynes@645 | 512 | uint32_t ms = (tex_tv.tv_sec - start_tv.tv_sec) * 1000 + |
nkeynes@736 | 513 | (tex_tv.tv_usec - start_tv.tv_usec)/1000; |
nkeynes@1232 | 514 | DEBUG( "Texture load in %dms", ms ); |
nkeynes@639 | 515 | |
nkeynes@1232 | 516 | float alphaRef = ((float)(MMIO_READ(PVR2, RENDER_ALPHA_REF)&0xFF)+1)/256.0; |
nkeynes@639 | 517 | float nearz = pvr2_scene.bounds[4]; |
nkeynes@639 | 518 | float farz = pvr2_scene.bounds[5]; |
nkeynes@639 | 519 | if( nearz == farz ) { |
nkeynes@687 | 520 | farz*= 4.0; |
nkeynes@639 | 521 | } |
nkeynes@1232 | 522 | |
nkeynes@1232 | 523 | /* Generate integer clip boundaries */ |
nkeynes@1232 | 524 | for( i=0; i<4; i++ ) { |
nkeynes@1232 | 525 | clip_bounds[i] = (uint32_t)pvr2_scene.bounds[i]; |
nkeynes@1232 | 526 | } |
nkeynes@1232 | 527 | |
nkeynes@1236 | 528 | defineOrthoMatrix(viewMatrix, pvr2_scene.buffer_width, pvr2_scene.buffer_height, -farz, -nearz); |
nkeynes@1232 | 529 | |
nkeynes@1232 | 530 | if( have_shaders ) { |
nkeynes@1232 | 531 | pvr2_scene_setup_shader(viewMatrix); |
nkeynes@1232 | 532 | } else { |
nkeynes@1232 | 533 | pvr2_scene_setup_fixed(viewMatrix); |
nkeynes@1232 | 534 | } |
nkeynes@1232 | 535 | |
nkeynes@639 | 536 | |
nkeynes@639 | 537 | /* Clear the buffer (FIXME: May not want always want to do this) */ |
nkeynes@639 | 538 | glDisable( GL_SCISSOR_TEST ); |
nkeynes@651 | 539 | glDepthMask( GL_TRUE ); |
nkeynes@864 | 540 | glStencilMask( 0x03 ); |
nkeynes@639 | 541 | glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT ); |
nkeynes@639 | 542 | |
nkeynes@687 | 543 | /* Render the background */ |
nkeynes@687 | 544 | gl_render_bkgnd( pvr2_scene.bkgnd_poly ); |
nkeynes@736 | 545 | |
nkeynes@639 | 546 | glEnable( GL_SCISSOR_TEST ); |
nkeynes@1138 | 547 | glEnable( GL_TEXTURE_2D ); |
nkeynes@639 | 548 | |
nkeynes@1232 | 549 | struct tile_segment *segment; |
nkeynes@639 | 550 | |
nkeynes@1232 | 551 | #define FOREACH_SEGMENT(segment) \ |
nkeynes@1232 | 552 | segment = pvr2_scene.segment_list; \ |
nkeynes@1232 | 553 | do { \ |
nkeynes@1232 | 554 | int tilex = SEGMENT_X(segment->control); \ |
nkeynes@1232 | 555 | int tiley = SEGMENT_Y(segment->control); \ |
nkeynes@1232 | 556 | \ |
nkeynes@1232 | 557 | uint32_t tile_bounds[4] = { tilex << 5, (tilex+1)<<5, tiley<<5, (tiley+1)<<5 }; \ |
nkeynes@1232 | 558 | if( !clip_tile_bounds(tile_bounds, clip_bounds) ) { \ |
nkeynes@1232 | 559 | continue; \ |
nkeynes@736 | 560 | } |
nkeynes@1232 | 561 | #define END_FOREACH_SEGMENT() \ |
nkeynes@1232 | 562 | } while( !IS_LAST_SEGMENT(segment++) ); |
nkeynes@1232 | 563 | #define CLIP_TO_SEGMENT() \ |
nkeynes@1232 | 564 | glScissor( tile_bounds[0], pvr2_scene.buffer_height-tile_bounds[3], tile_bounds[1]-tile_bounds[0], tile_bounds[3] - tile_bounds[2] ) |
nkeynes@736 | 565 | |
nkeynes@1232 | 566 | /* Build up the opaque stencil map */ |
nkeynes@1232 | 567 | if( display_driver->capabilities.stencil_bits >= 2 ) { |
nkeynes@1232 | 568 | glColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE ); |
nkeynes@1232 | 569 | FOREACH_SEGMENT(segment) |
nkeynes@1232 | 570 | if( IS_NONEMPTY_TILE_LIST(segment->opaquemod_ptr) ) { |
nkeynes@1232 | 571 | CLIP_TO_SEGMENT(); |
nkeynes@1232 | 572 | gl_render_tilelist_depthonly(segment->opaque_ptr); |
nkeynes@1232 | 573 | } |
nkeynes@1232 | 574 | END_FOREACH_SEGMENT() |
nkeynes@1153 | 575 | |
nkeynes@1232 | 576 | glEnable( GL_STENCIL_TEST ); |
nkeynes@1232 | 577 | glStencilFunc( GL_ALWAYS, 0, 1 ); |
nkeynes@1232 | 578 | glStencilOp( GL_KEEP,GL_INVERT, GL_KEEP ); |
nkeynes@1232 | 579 | glStencilMask( 0x01 ); |
nkeynes@1232 | 580 | glDepthFunc( GL_LEQUAL ); |
nkeynes@1232 | 581 | glDepthMask( GL_FALSE ); |
nkeynes@1232 | 582 | FOREACH_SEGMENT(segment) |
nkeynes@1232 | 583 | if( IS_NONEMPTY_TILE_LIST(segment->opaquemod_ptr) ) { |
nkeynes@1232 | 584 | CLIP_TO_SEGMENT(); |
nkeynes@1232 | 585 | gl_render_modifier_tilelist(segment->opaquemod_ptr, tile_bounds); |
nkeynes@1232 | 586 | } |
nkeynes@1232 | 587 | END_FOREACH_SEGMENT() |
nkeynes@1232 | 588 | glDepthMask( GL_TRUE ); |
nkeynes@1232 | 589 | glStencilOp( GL_KEEP, GL_KEEP, GL_KEEP ); |
nkeynes@1232 | 590 | glDisable( GL_SCISSOR_TEST ); |
nkeynes@1232 | 591 | glClear( GL_DEPTH_BUFFER_BIT ); |
nkeynes@1232 | 592 | glEnable( GL_SCISSOR_TEST ); |
nkeynes@1232 | 593 | glColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE ); |
nkeynes@1232 | 594 | } |
nkeynes@1232 | 595 | |
nkeynes@1232 | 596 | /* Render the opaque polygons */ |
nkeynes@1232 | 597 | FOREACH_SEGMENT(segment) |
nkeynes@1232 | 598 | CLIP_TO_SEGMENT(); |
nkeynes@1153 | 599 | gl_render_tilelist(segment->opaque_ptr,TRUE); |
nkeynes@1232 | 600 | END_FOREACH_SEGMENT() |
nkeynes@1236 | 601 | glDisable( GL_STENCIL_TEST ); |
nkeynes@1133 | 602 | |
nkeynes@1232 | 603 | /* Render the punch-out polygons */ |
nkeynes@1232 | 604 | if( have_shaders ) |
nkeynes@1232 | 605 | pvr2_scene_set_alpha_shader(alphaRef); |
nkeynes@1232 | 606 | else |
nkeynes@1232 | 607 | pvr2_scene_set_alpha_fixed(alphaRef); |
nkeynes@1232 | 608 | glDepthFunc(GL_GEQUAL); |
nkeynes@1232 | 609 | FOREACH_SEGMENT(segment) |
nkeynes@1232 | 610 | CLIP_TO_SEGMENT(); |
nkeynes@1232 | 611 | gl_render_tilelist(segment->punchout_ptr, FALSE ); |
nkeynes@1232 | 612 | END_FOREACH_SEGMENT() |
nkeynes@1232 | 613 | if( have_shaders ) |
nkeynes@1232 | 614 | pvr2_scene_set_alpha_shader(0.0); |
nkeynes@1232 | 615 | else |
nkeynes@1232 | 616 | pvr2_scene_set_alpha_fixed(0.0); |
nkeynes@1232 | 617 | |
nkeynes@1232 | 618 | /* Render the translucent polygons */ |
nkeynes@1232 | 619 | FOREACH_SEGMENT(segment) |
nkeynes@1232 | 620 | if( IS_NONEMPTY_TILE_LIST(segment->trans_ptr) ) { |
nkeynes@1232 | 621 | CLIP_TO_SEGMENT(); |
nkeynes@736 | 622 | if( pvr2_scene.sort_mode == SORT_NEVER || |
nkeynes@736 | 623 | (pvr2_scene.sort_mode == SORT_TILEFLAG && (segment->control&SEGMENT_SORT_TRANS))) { |
nkeynes@1137 | 624 | gl_render_tilelist(segment->trans_ptr, TRUE); |
nkeynes@736 | 625 | } else { |
nkeynes@736 | 626 | render_autosort_tile(segment->trans_ptr, RENDER_NORMAL ); |
nkeynes@736 | 627 | } |
nkeynes@736 | 628 | } |
nkeynes@1232 | 629 | END_FOREACH_SEGMENT() |
nkeynes@1232 | 630 | |
nkeynes@639 | 631 | glDisable( GL_SCISSOR_TEST ); |
nkeynes@1232 | 632 | |
nkeynes@1232 | 633 | if( have_shaders ) { |
nkeynes@1232 | 634 | pvr2_scene_cleanup_shader(); |
nkeynes@1232 | 635 | } else { |
nkeynes@1232 | 636 | pvr2_scene_cleanup_fixed(); |
nkeynes@1232 | 637 | } |
nkeynes@669 | 638 | |
nkeynes@1159 | 639 | pvr2_scene_finished(); |
nkeynes@1159 | 640 | |
nkeynes@645 | 641 | gettimeofday( &end_tv, NULL ); |
nkeynes@645 | 642 | ms = (end_tv.tv_sec - tex_tv.tv_sec) * 1000 + |
nkeynes@736 | 643 | (end_tv.tv_usec - tex_tv.tv_usec)/1000; |
nkeynes@645 | 644 | DEBUG( "Scene render in %dms", ms ); |
nkeynes@639 | 645 | } |
.