Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2005 Eric Anholt |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice (including the next |
| 13 | * paragraph) shall be included in all copies or substantial portions of the |
| 14 | * Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | * |
| 24 | * Authors: |
| 25 | * Eric Anholt <anholt@FreeBSD.org> |
| 26 | * |
| 27 | */ |
| 28 | |
| 29 | #include "sis_context.h" |
| 30 | #include "sis_state.h" |
| 31 | #include "sis_tris.h" |
| 32 | #include "sis_lock.h" |
| 33 | #include "sis_tex.h" |
| 34 | #include "sis_reg.h" |
| 35 | |
Brian Paul | ecadb51 | 2008-09-18 15:17:05 -0600 | [diff] [blame] | 36 | #include "main/context.h" |
Brian Paul | ecadb51 | 2008-09-18 15:17:05 -0600 | [diff] [blame] | 37 | #include "main/colormac.h" |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 38 | #include "swrast/swrast.h" |
Keith Whitwell | 35ee4af | 2006-10-31 12:12:15 +0000 | [diff] [blame] | 39 | #include "vbo/vbo.h" |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 40 | #include "tnl/tnl.h" |
| 41 | #include "swrast_setup/swrast_setup.h" |
| 42 | |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 43 | |
| 44 | /* ============================================================= |
| 45 | * Alpha blending |
| 46 | */ |
| 47 | |
| 48 | static void |
| 49 | sis6326DDAlphaFunc( GLcontext *ctx, GLenum func, GLfloat ref ) |
| 50 | { |
| 51 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 52 | GLubyte refbyte; |
| 53 | |
| 54 | __GLSiSHardware *prev = &smesa->prev; |
| 55 | __GLSiSHardware *current = &smesa->current; |
| 56 | |
| 57 | CLAMPED_FLOAT_TO_UBYTE(refbyte, ref); |
| 58 | current->hwAlpha = refbyte << 16; |
| 59 | |
| 60 | /* Alpha Test function */ |
| 61 | switch (func) |
| 62 | { |
| 63 | case GL_NEVER: |
| 64 | current->hwAlpha |= S_ASET_PASS_NEVER; |
| 65 | break; |
| 66 | case GL_LESS: |
| 67 | current->hwAlpha |= S_ASET_PASS_LESS; |
| 68 | break; |
| 69 | case GL_EQUAL: |
| 70 | current->hwAlpha |= S_ASET_PASS_EQUAL; |
| 71 | break; |
| 72 | case GL_LEQUAL: |
| 73 | current->hwAlpha |= S_ASET_PASS_LEQUAL; |
| 74 | break; |
| 75 | case GL_GREATER: |
| 76 | current->hwAlpha |= S_ASET_PASS_GREATER; |
| 77 | break; |
| 78 | case GL_NOTEQUAL: |
| 79 | current->hwAlpha |= S_ASET_PASS_NOTEQUAL; |
| 80 | break; |
| 81 | case GL_GEQUAL: |
| 82 | current->hwAlpha |= S_ASET_PASS_GEQUAL; |
| 83 | break; |
| 84 | case GL_ALWAYS: |
| 85 | current->hwAlpha |= S_ASET_PASS_ALWAYS; |
| 86 | break; |
| 87 | } |
| 88 | |
| 89 | prev->hwAlpha = current->hwAlpha; |
| 90 | smesa->GlobalFlag |= GFLAG_ALPHASETTING; |
| 91 | } |
| 92 | |
| 93 | static void |
| 94 | sis6326DDBlendFuncSeparate( GLcontext *ctx, |
| 95 | GLenum sfactorRGB, GLenum dfactorRGB, |
| 96 | GLenum sfactorA, GLenum dfactorA ) |
| 97 | { |
| 98 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 99 | |
| 100 | __GLSiSHardware *prev = &smesa->prev; |
| 101 | __GLSiSHardware *current = &smesa->current; |
| 102 | |
| 103 | current->hwDstSrcBlend = 0; |
| 104 | |
| 105 | switch (dfactorRGB) |
| 106 | { |
| 107 | case GL_ZERO: |
| 108 | current->hwDstSrcBlend |= S_DBLEND_ZERO; |
| 109 | break; |
| 110 | case GL_ONE: |
| 111 | current->hwDstSrcBlend |= S_DBLEND_ONE; |
| 112 | break; |
| 113 | case GL_SRC_COLOR: |
| 114 | current->hwDstSrcBlend |= S_DBLEND_SRC_COLOR; |
| 115 | break; |
| 116 | case GL_ONE_MINUS_SRC_COLOR: |
| 117 | current->hwDstSrcBlend |= S_DBLEND_INV_SRC_COLOR; |
| 118 | break; |
| 119 | case GL_SRC_ALPHA: |
| 120 | current->hwDstSrcBlend |= S_DBLEND_SRC_ALPHA; |
| 121 | break; |
| 122 | case GL_ONE_MINUS_SRC_ALPHA: |
| 123 | current->hwDstSrcBlend |= S_DBLEND_INV_SRC_ALPHA; |
| 124 | break; |
| 125 | case GL_DST_ALPHA: |
| 126 | current->hwDstSrcBlend |= S_DBLEND_DST_ALPHA; |
| 127 | break; |
| 128 | case GL_ONE_MINUS_DST_ALPHA: |
| 129 | current->hwDstSrcBlend |= S_DBLEND_INV_DST_ALPHA; |
| 130 | break; |
| 131 | } |
| 132 | |
| 133 | switch (sfactorRGB) |
| 134 | { |
| 135 | case GL_ZERO: |
| 136 | current->hwDstSrcBlend |= S_SBLEND_ZERO; |
| 137 | break; |
| 138 | case GL_ONE: |
| 139 | current->hwDstSrcBlend |= S_SBLEND_ONE; |
| 140 | break; |
| 141 | case GL_SRC_ALPHA: |
| 142 | current->hwDstSrcBlend |= S_SBLEND_SRC_ALPHA; |
| 143 | break; |
| 144 | case GL_ONE_MINUS_SRC_ALPHA: |
| 145 | current->hwDstSrcBlend |= S_SBLEND_INV_SRC_ALPHA; |
| 146 | break; |
| 147 | case GL_DST_ALPHA: |
| 148 | current->hwDstSrcBlend |= S_SBLEND_DST_ALPHA; |
| 149 | break; |
| 150 | case GL_ONE_MINUS_DST_ALPHA: |
| 151 | current->hwDstSrcBlend |= S_SBLEND_INV_DST_ALPHA; |
| 152 | break; |
| 153 | case GL_DST_COLOR: |
| 154 | current->hwDstSrcBlend |= S_SBLEND_DST_COLOR; |
| 155 | break; |
| 156 | case GL_ONE_MINUS_DST_COLOR: |
| 157 | current->hwDstSrcBlend |= S_SBLEND_INV_DST_COLOR; |
| 158 | break; |
| 159 | case GL_SRC_ALPHA_SATURATE: |
| 160 | current->hwDstSrcBlend |= S_SBLEND_SRC_ALPHA_SAT; |
| 161 | break; |
| 162 | } |
| 163 | |
| 164 | if (current->hwDstSrcBlend != prev->hwDstSrcBlend) { |
| 165 | prev->hwDstSrcBlend = current->hwDstSrcBlend; |
| 166 | smesa->GlobalFlag |= GFLAG_DSTBLEND; |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | /* ============================================================= |
| 171 | * Depth testing |
| 172 | */ |
| 173 | |
| 174 | static void |
| 175 | sis6326DDDepthFunc( GLcontext *ctx, GLenum func ) |
| 176 | { |
| 177 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 178 | __GLSiSHardware *prev = &smesa->prev; |
| 179 | __GLSiSHardware *current = &smesa->current; |
| 180 | |
| 181 | current->hwZ &= ~MASK_6326_ZTestMode; |
| 182 | switch (func) |
| 183 | { |
| 184 | case GL_LESS: |
| 185 | current->hwZ |= S_ZSET_PASS_LESS; |
| 186 | break; |
| 187 | case GL_GEQUAL: |
| 188 | current->hwZ |= S_ZSET_PASS_GEQUAL; |
| 189 | break; |
| 190 | case GL_LEQUAL: |
| 191 | current->hwZ |= S_ZSET_PASS_LEQUAL; |
| 192 | break; |
| 193 | case GL_GREATER: |
| 194 | current->hwZ |= S_ZSET_PASS_GREATER; |
| 195 | break; |
| 196 | case GL_NOTEQUAL: |
| 197 | current->hwZ |= S_ZSET_PASS_NOTEQUAL; |
| 198 | break; |
| 199 | case GL_EQUAL: |
| 200 | current->hwZ |= S_ZSET_PASS_EQUAL; |
| 201 | break; |
| 202 | case GL_ALWAYS: |
| 203 | current->hwZ |= S_ZSET_PASS_ALWAYS; |
| 204 | break; |
| 205 | case GL_NEVER: |
| 206 | current->hwZ |= S_ZSET_PASS_NEVER; |
| 207 | break; |
| 208 | } |
| 209 | |
| 210 | if (current->hwZ != prev->hwZ) { |
| 211 | prev->hwZ = current->hwZ; |
| 212 | smesa->GlobalFlag |= GFLAG_ZSETTING; |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | static void |
| 217 | sis6326DDDepthMask( GLcontext *ctx, GLboolean flag ) |
| 218 | { |
| 219 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 220 | __GLSiSHardware *current = &smesa->current; |
| 221 | |
| 222 | if (ctx->Depth.Test) |
| 223 | current->hwCapEnable |= S_ENABLE_ZWrite; |
| 224 | else |
| 225 | current->hwCapEnable &= ~S_ENABLE_ZWrite; |
| 226 | } |
| 227 | |
| 228 | /* ============================================================= |
| 229 | * Fog |
| 230 | */ |
| 231 | |
| 232 | static void |
| 233 | sis6326DDFogfv( GLcontext *ctx, GLenum pname, const GLfloat *params ) |
| 234 | { |
| 235 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 236 | __GLSiSHardware *current = &smesa->current; |
| 237 | __GLSiSHardware *prev = &smesa->prev; |
| 238 | |
| 239 | GLint fogColor; |
| 240 | |
| 241 | switch(pname) |
| 242 | { |
| 243 | case GL_FOG_COLOR: |
| 244 | fogColor = FLOAT_TO_UBYTE( ctx->Fog.Color[0] ) << 16; |
| 245 | fogColor |= FLOAT_TO_UBYTE( ctx->Fog.Color[1] ) << 8; |
| 246 | fogColor |= FLOAT_TO_UBYTE( ctx->Fog.Color[2] ); |
| 247 | current->hwFog = 0x01000000 | fogColor; |
| 248 | if (current->hwFog != prev->hwFog) { |
| 249 | prev->hwFog = current->hwFog; |
| 250 | smesa->GlobalFlag |= GFLAG_FOGSETTING; |
| 251 | } |
| 252 | break; |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | /* ============================================================= |
| 257 | * Clipping |
| 258 | */ |
| 259 | |
| 260 | void |
| 261 | sis6326UpdateClipping(GLcontext *ctx) |
| 262 | { |
| 263 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 264 | |
| 265 | __GLSiSHardware *prev = &smesa->prev; |
| 266 | __GLSiSHardware *current = &smesa->current; |
| 267 | |
| 268 | GLint x1, y1, x2, y2; |
| 269 | |
| 270 | x1 = 0; |
| 271 | y1 = 0; |
| 272 | x2 = smesa->width - 1; |
| 273 | y2 = smesa->height - 1; |
| 274 | |
| 275 | if (ctx->Scissor.Enabled) { |
| 276 | if (ctx->Scissor.X > x1) |
| 277 | x1 = ctx->Scissor.X; |
| 278 | if (ctx->Scissor.Y > y1) |
| 279 | y1 = ctx->Scissor.Y; |
| 280 | if (ctx->Scissor.X + ctx->Scissor.Width - 1 < x2) |
| 281 | x2 = ctx->Scissor.X + ctx->Scissor.Width - 1; |
| 282 | if (ctx->Scissor.Y + ctx->Scissor.Height - 1 < y2) |
| 283 | y2 = ctx->Scissor.Y + ctx->Scissor.Height - 1; |
| 284 | } |
| 285 | |
| 286 | y1 = Y_FLIP(y1); |
| 287 | y2 = Y_FLIP(y2); |
| 288 | |
| 289 | /*current->clipTopBottom = (y2 << 13) | y1; |
| 290 | current->clipLeftRight = (x1 << 13) | x2;*/ /* XXX */ |
| 291 | current->clipTopBottom = (0 << 13) | smesa->height; |
| 292 | current->clipLeftRight = (0 << 13) | smesa->width; |
| 293 | |
| 294 | if ((current->clipTopBottom != prev->clipTopBottom) || |
| 295 | (current->clipLeftRight != prev->clipLeftRight)) { |
| 296 | prev->clipTopBottom = current->clipTopBottom; |
| 297 | prev->clipLeftRight = current->clipLeftRight; |
| 298 | smesa->GlobalFlag |= GFLAG_CLIPPING; |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | static void |
| 303 | sis6326DDScissor( GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h ) |
| 304 | { |
| 305 | if (ctx->Scissor.Enabled) |
| 306 | sis6326UpdateClipping( ctx ); |
| 307 | } |
| 308 | |
| 309 | /* ============================================================= |
| 310 | * Culling |
| 311 | */ |
| 312 | |
| 313 | static void |
| 314 | sis6326UpdateCull( GLcontext *ctx ) |
| 315 | { |
| 316 | /* XXX culling */ |
| 317 | } |
| 318 | |
| 319 | |
| 320 | static void |
| 321 | sis6326DDCullFace( GLcontext *ctx, GLenum mode ) |
| 322 | { |
| 323 | sis6326UpdateCull( ctx ); |
| 324 | } |
| 325 | |
| 326 | static void |
| 327 | sis6326DDFrontFace( GLcontext *ctx, GLenum mode ) |
| 328 | { |
| 329 | sis6326UpdateCull( ctx ); |
| 330 | } |
| 331 | |
| 332 | /* ============================================================= |
| 333 | * Masks |
| 334 | */ |
| 335 | |
| 336 | static void sis6326DDColorMask( GLcontext *ctx, |
| 337 | GLboolean r, GLboolean g, |
| 338 | GLboolean b, GLboolean a ) |
| 339 | { |
| 340 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 341 | |
| 342 | if (r && g && b && ((ctx->Visual.alphaBits == 0) || a)) { |
| 343 | FALLBACK(smesa, SIS_FALLBACK_WRITEMASK, 0); |
| 344 | } else { |
| 345 | FALLBACK(smesa, SIS_FALLBACK_WRITEMASK, 1); |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | /* ============================================================= |
| 350 | * Rendering attributes |
| 351 | */ |
| 352 | |
| 353 | static void sis6326UpdateSpecular(GLcontext *ctx) |
| 354 | { |
| 355 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 356 | __GLSiSHardware *current = &smesa->current; |
| 357 | |
| 358 | if (NEED_SECONDARY_COLOR(ctx)) |
| 359 | current->hwCapEnable |= S_ENABLE_Specular; |
| 360 | else |
| 361 | current->hwCapEnable &= ~S_ENABLE_Specular; |
| 362 | } |
| 363 | |
| 364 | static void sis6326DDLightModelfv(GLcontext *ctx, GLenum pname, |
| 365 | const GLfloat *param) |
| 366 | { |
| 367 | if (pname == GL_LIGHT_MODEL_COLOR_CONTROL) { |
| 368 | sis6326UpdateSpecular(ctx); |
| 369 | } |
| 370 | } |
| 371 | static void sis6326DDShadeModel( GLcontext *ctx, GLenum mode ) |
| 372 | { |
| 373 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 374 | |
| 375 | /* Signal to sisRasterPrimitive to recalculate dwPrimitiveSet */ |
| 376 | smesa->hw_primitive = -1; |
| 377 | } |
| 378 | |
| 379 | /* ============================================================= |
| 380 | * Window position |
| 381 | */ |
| 382 | |
| 383 | /* ============================================================= |
| 384 | * Viewport |
| 385 | */ |
| 386 | |
| 387 | static void sis6326CalcViewport( GLcontext *ctx ) |
| 388 | { |
| 389 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 390 | const GLfloat *v = ctx->Viewport._WindowMap.m; |
| 391 | GLfloat *m = smesa->hw_viewport; |
| 392 | |
| 393 | /* See also sis_translate_vertex. |
| 394 | */ |
| 395 | m[MAT_SX] = v[MAT_SX]; |
| 396 | m[MAT_TX] = v[MAT_TX] + SUBPIXEL_X; |
| 397 | m[MAT_SY] = - v[MAT_SY]; |
| 398 | m[MAT_TY] = - v[MAT_TY] + smesa->driDrawable->h + SUBPIXEL_Y; |
| 399 | m[MAT_SZ] = v[MAT_SZ] * smesa->depth_scale; |
| 400 | m[MAT_TZ] = v[MAT_TZ] * smesa->depth_scale; |
| 401 | } |
| 402 | |
| 403 | static void sis6326DDViewport( GLcontext *ctx, |
| 404 | GLint x, GLint y, |
| 405 | GLsizei width, GLsizei height ) |
| 406 | { |
| 407 | sis6326CalcViewport( ctx ); |
| 408 | } |
| 409 | |
| 410 | static void sis6326DDDepthRange( GLcontext *ctx, |
| 411 | GLclampd nearval, GLclampd farval ) |
| 412 | { |
| 413 | sis6326CalcViewport( ctx ); |
| 414 | } |
| 415 | |
| 416 | /* ============================================================= |
| 417 | * Miscellaneous |
| 418 | */ |
| 419 | |
| 420 | static void |
| 421 | sis6326DDLogicOpCode( GLcontext *ctx, GLenum opcode ) |
| 422 | { |
| 423 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 424 | |
| 425 | __GLSiSHardware *prev = &smesa->prev; |
| 426 | __GLSiSHardware *current = &smesa->current; |
| 427 | |
| 428 | if (!ctx->Color.ColorLogicOpEnabled) |
| 429 | return; |
| 430 | |
| 431 | current->hwDstSet &= ~MASK_ROP2; |
| 432 | switch (opcode) |
| 433 | { |
| 434 | case GL_CLEAR: |
| 435 | current->hwDstSet |= LOP_CLEAR; |
| 436 | break; |
| 437 | case GL_SET: |
| 438 | current->hwDstSet |= LOP_SET; |
| 439 | break; |
| 440 | case GL_COPY: |
| 441 | current->hwDstSet |= LOP_COPY; |
| 442 | break; |
| 443 | case GL_COPY_INVERTED: |
| 444 | current->hwDstSet |= LOP_COPY_INVERTED; |
| 445 | break; |
| 446 | case GL_NOOP: |
| 447 | current->hwDstSet |= LOP_NOOP; |
| 448 | break; |
| 449 | case GL_INVERT: |
| 450 | current->hwDstSet |= LOP_INVERT; |
| 451 | break; |
| 452 | case GL_AND: |
| 453 | current->hwDstSet |= LOP_AND; |
| 454 | break; |
| 455 | case GL_NAND: |
| 456 | current->hwDstSet |= LOP_NAND; |
| 457 | break; |
| 458 | case GL_OR: |
| 459 | current->hwDstSet |= LOP_OR; |
| 460 | break; |
| 461 | case GL_NOR: |
| 462 | current->hwDstSet |= LOP_NOR; |
| 463 | break; |
| 464 | case GL_XOR: |
| 465 | current->hwDstSet |= LOP_XOR; |
| 466 | break; |
| 467 | case GL_EQUIV: |
| 468 | current->hwDstSet |= LOP_EQUIV; |
| 469 | break; |
| 470 | case GL_AND_REVERSE: |
| 471 | current->hwDstSet |= LOP_AND_REVERSE; |
| 472 | break; |
| 473 | case GL_AND_INVERTED: |
| 474 | current->hwDstSet |= LOP_AND_INVERTED; |
| 475 | break; |
| 476 | case GL_OR_REVERSE: |
| 477 | current->hwDstSet |= LOP_OR_REVERSE; |
| 478 | break; |
| 479 | case GL_OR_INVERTED: |
| 480 | current->hwDstSet |= LOP_OR_INVERTED; |
| 481 | break; |
| 482 | } |
| 483 | |
| 484 | if (current->hwDstSet != prev->hwDstSet) { |
| 485 | prev->hwDstSet = current->hwDstSet; |
| 486 | smesa->GlobalFlag |= GFLAG_DESTSETTING; |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | void sis6326DDDrawBuffer( GLcontext *ctx, GLenum mode ) |
| 491 | { |
| 492 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 493 | |
| 494 | __GLSiSHardware *prev = &smesa->prev; |
| 495 | __GLSiSHardware *current = &smesa->current; |
| 496 | |
| 497 | if(getenv("SIS_DRAW_FRONT")) |
Brian | 601a6b8 | 2008-01-06 18:07:26 -0700 | [diff] [blame] | 498 | ctx->DrawBuffer->_ColorDrawBufferIndexes[0] = BUFFER_FRONT_LEFT; |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 499 | |
Brian | 601a6b8 | 2008-01-06 18:07:26 -0700 | [diff] [blame] | 500 | if (ctx->DrawBuffer->_NumColorDrawBuffers > 1) { |
| 501 | FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_TRUE ); |
| 502 | return; |
| 503 | } |
| 504 | |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 505 | current->hwDstSet &= ~MASK_DstBufferPitch; |
Brian | 601a6b8 | 2008-01-06 18:07:26 -0700 | [diff] [blame] | 506 | |
| 507 | switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) { |
| 508 | case BUFFER_FRONT_LEFT: |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 509 | current->hwOffsetDest = smesa->front.offset; |
| 510 | current->hwDstSet |= smesa->front.pitch; |
| 511 | FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_FALSE ); |
| 512 | break; |
Brian | 601a6b8 | 2008-01-06 18:07:26 -0700 | [diff] [blame] | 513 | case BUFFER_BACK_LEFT: |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 514 | current->hwOffsetDest = smesa->back.offset; |
| 515 | current->hwDstSet |= smesa->back.pitch; |
| 516 | FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_FALSE ); |
| 517 | break; |
| 518 | default: |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 519 | FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_TRUE ); |
| 520 | return; |
| 521 | } |
| 522 | |
| 523 | if (current->hwDstSet != prev->hwDstSet) { |
| 524 | prev->hwDstSet = current->hwDstSet; |
| 525 | smesa->GlobalFlag |= GFLAG_DESTSETTING; |
| 526 | } |
| 527 | |
| 528 | if (current->hwOffsetDest != prev->hwOffsetDest) { |
| 529 | prev->hwOffsetDest = current->hwOffsetDest; |
| 530 | smesa->GlobalFlag |= GFLAG_DESTSETTING; |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | /* ============================================================= |
| 535 | * Polygon stipple |
| 536 | */ |
| 537 | |
| 538 | /* ============================================================= |
| 539 | * Render mode |
| 540 | */ |
| 541 | |
| 542 | /* ============================================================= |
| 543 | * State enable/disable |
| 544 | */ |
| 545 | |
| 546 | static void |
| 547 | sis6326DDEnable( GLcontext *ctx, GLenum cap, GLboolean state ) |
| 548 | { |
| 549 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 550 | |
| 551 | __GLSiSHardware *current = &smesa->current; |
| 552 | |
| 553 | switch (cap) |
| 554 | { |
| 555 | case GL_ALPHA_TEST: |
| 556 | if (state) |
| 557 | current->hwCapEnable |= S_ENABLE_AlphaTest; |
| 558 | else |
| 559 | current->hwCapEnable &= ~S_ENABLE_AlphaTest; |
| 560 | break; |
| 561 | case GL_BLEND: |
| 562 | /* TODO: */ |
| 563 | if (state) |
| 564 | /* if (state & !ctx->Color.ColorLogicOpEnabled) */ |
| 565 | current->hwCapEnable |= S_ENABLE_Blend; |
| 566 | else |
| 567 | current->hwCapEnable &= ~S_ENABLE_Blend; |
| 568 | break; |
| 569 | case GL_CULL_FACE: |
| 570 | /* XXX culling */ |
| 571 | break; |
| 572 | case GL_DEPTH_TEST: |
| 573 | if (state && smesa->depth.offset != 0) |
| 574 | current->hwCapEnable |= S_ENABLE_ZTest; |
| 575 | else |
| 576 | current->hwCapEnable &= ~S_ENABLE_ZTest; |
| 577 | sis6326DDDepthMask( ctx, ctx->Depth.Mask ); |
| 578 | break; |
| 579 | case GL_DITHER: |
| 580 | if (state) |
| 581 | current->hwCapEnable |= S_ENABLE_Dither; |
| 582 | else |
| 583 | current->hwCapEnable &= ~S_ENABLE_Dither; |
| 584 | break; |
| 585 | case GL_FOG: |
| 586 | if (state) |
| 587 | current->hwCapEnable |= S_ENABLE_Fog; |
| 588 | else |
| 589 | current->hwCapEnable &= ~S_ENABLE_Fog; |
| 590 | break; |
| 591 | case GL_COLOR_LOGIC_OP: |
| 592 | if (state) |
| 593 | sis6326DDLogicOpCode( ctx, ctx->Color.LogicOp ); |
| 594 | else |
| 595 | sis6326DDLogicOpCode( ctx, GL_COPY ); |
| 596 | break; |
| 597 | case GL_SCISSOR_TEST: |
| 598 | sis6326UpdateClipping( ctx ); |
| 599 | break; |
| 600 | case GL_STENCIL_TEST: |
| 601 | if (state) { |
| 602 | FALLBACK(smesa, SIS_FALLBACK_STENCIL, 1); |
| 603 | } else { |
| 604 | FALLBACK(smesa, SIS_FALLBACK_STENCIL, 0); |
| 605 | } |
| 606 | break; |
| 607 | case GL_LIGHTING: |
| 608 | case GL_COLOR_SUM_EXT: |
| 609 | sis6326UpdateSpecular(ctx); |
| 610 | break; |
| 611 | } |
| 612 | } |
| 613 | |
| 614 | /* ============================================================= |
| 615 | * State initialization, management |
| 616 | */ |
| 617 | |
| 618 | /* Called before beginning of rendering. */ |
| 619 | void |
| 620 | sis6326UpdateHWState( GLcontext *ctx ) |
| 621 | { |
| 622 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 623 | __GLSiSHardware *prev = &smesa->prev; |
| 624 | __GLSiSHardware *current = &smesa->current; |
| 625 | |
| 626 | if (smesa->NewGLState & _NEW_TEXTURE) |
| 627 | sisUpdateTextureState( ctx ); |
| 628 | |
| 629 | if (current->hwCapEnable ^ prev->hwCapEnable) { |
| 630 | prev->hwCapEnable = current->hwCapEnable; |
| 631 | smesa->GlobalFlag |= GFLAG_ENABLESETTING; |
| 632 | } |
| 633 | |
| 634 | if (smesa->GlobalFlag & GFLAG_RENDER_STATES) |
| 635 | sis_update_render_state( smesa ); |
| 636 | |
| 637 | if (smesa->GlobalFlag & GFLAG_TEXTURE_STATES) |
| 638 | sis_update_texture_state( smesa ); |
| 639 | } |
| 640 | |
| 641 | static void |
| 642 | sis6326DDInvalidateState( GLcontext *ctx, GLuint new_state ) |
| 643 | { |
| 644 | sisContextPtr smesa = SIS_CONTEXT(ctx); |
| 645 | |
| 646 | _swrast_InvalidateState( ctx, new_state ); |
| 647 | _swsetup_InvalidateState( ctx, new_state ); |
Keith Whitwell | 35ee4af | 2006-10-31 12:12:15 +0000 | [diff] [blame] | 648 | _vbo_InvalidateState( ctx, new_state ); |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 649 | _tnl_InvalidateState( ctx, new_state ); |
| 650 | smesa->NewGLState |= new_state; |
| 651 | } |
| 652 | |
| 653 | /* Initialize the context's hardware state. |
| 654 | */ |
| 655 | void sis6326DDInitState( sisContextPtr smesa ) |
| 656 | { |
| 657 | __GLSiSHardware *prev = &smesa->prev; |
| 658 | __GLSiSHardware *current = &smesa->current; |
| 659 | GLcontext *ctx = smesa->glCtx; |
| 660 | |
| 661 | /* add Texture Perspective Enable */ |
| 662 | current->hwCapEnable = S_ENABLE_TextureCache | |
| 663 | S_ENABLE_TexturePerspective | S_ENABLE_Dither; |
| 664 | |
| 665 | /* Z test mode is LESS */ |
| 666 | current->hwZ = S_ZSET_PASS_LESS | S_ZSET_FORMAT_16; |
| 667 | if (ctx->Visual.depthBits > 0) |
| 668 | current->hwCapEnable |= S_ENABLE_ZWrite; |
| 669 | |
| 670 | /* Alpha test mode is ALWAYS, alpha ref value is 0 */ |
| 671 | current->hwAlpha = S_ASET_PASS_ALWAYS; |
| 672 | |
| 673 | /* ROP2 is COPYPEN */ |
| 674 | current->hwDstSet = LOP_COPY; |
| 675 | |
| 676 | /* LinePattern is 0, Repeat Factor is 0 */ |
| 677 | current->hwLinePattern = 0x00008000; |
| 678 | |
| 679 | /* Src blend is BLEND_ONE, Dst blend is D3DBLEND_ZERO */ |
| 680 | current->hwDstSrcBlend = S_SBLEND_ONE | S_DBLEND_ZERO; |
| 681 | |
| 682 | switch (smesa->bytesPerPixel) |
| 683 | { |
| 684 | case 2: |
| 685 | current->hwDstSet |= DST_FORMAT_RGB_565; |
| 686 | break; |
| 687 | case 4: |
| 688 | current->hwDstSet |= DST_FORMAT_ARGB_8888; |
| 689 | break; |
| 690 | } |
| 691 | |
| 692 | smesa->depth_scale = 1.0 / (GLfloat)0xffff; |
| 693 | |
| 694 | smesa->clearTexCache = GL_TRUE; |
| 695 | |
| 696 | smesa->clearColorPattern = 0; |
| 697 | |
| 698 | sis6326UpdateZPattern(smesa, 1.0); |
| 699 | sis6326UpdateCull(ctx); |
| 700 | |
| 701 | /* Set initial fog settings. Start and end are the same case. */ |
| 702 | sis6326DDFogfv( ctx, GL_FOG_DENSITY, &ctx->Fog.Density ); |
| 703 | sis6326DDFogfv( ctx, GL_FOG_END, &ctx->Fog.End ); |
| 704 | sis6326DDFogfv( ctx, GL_FOG_MODE, NULL ); |
| 705 | |
| 706 | memcpy(prev, current, sizeof(__GLSiSHardware)); |
| 707 | } |
| 708 | |
| 709 | /* Initialize the driver's state functions. |
| 710 | */ |
| 711 | void sis6326DDInitStateFuncs( GLcontext *ctx ) |
| 712 | { |
| 713 | ctx->Driver.UpdateState = sis6326DDInvalidateState; |
| 714 | |
| 715 | ctx->Driver.Clear = sis6326DDClear; |
| 716 | ctx->Driver.ClearColor = sis6326DDClearColor; |
| 717 | ctx->Driver.ClearDepth = sis6326DDClearDepth; |
| 718 | |
| 719 | ctx->Driver.AlphaFunc = sis6326DDAlphaFunc; |
| 720 | ctx->Driver.BlendFuncSeparate = sis6326DDBlendFuncSeparate; |
| 721 | ctx->Driver.ColorMask = sis6326DDColorMask; |
| 722 | ctx->Driver.CullFace = sis6326DDCullFace; |
| 723 | ctx->Driver.DepthMask = sis6326DDDepthMask; |
| 724 | ctx->Driver.DepthFunc = sis6326DDDepthFunc; |
| 725 | ctx->Driver.DepthRange = sis6326DDDepthRange; |
| 726 | ctx->Driver.DrawBuffer = sis6326DDDrawBuffer; |
| 727 | ctx->Driver.Enable = sis6326DDEnable; |
| 728 | ctx->Driver.FrontFace = sis6326DDFrontFace; |
| 729 | ctx->Driver.Fogfv = sis6326DDFogfv; |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 730 | ctx->Driver.LogicOpcode = sis6326DDLogicOpCode; |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 731 | ctx->Driver.Scissor = sis6326DDScissor; |
| 732 | ctx->Driver.ShadeModel = sis6326DDShadeModel; |
| 733 | ctx->Driver.LightModelfv = sis6326DDLightModelfv; |
| 734 | ctx->Driver.Viewport = sis6326DDViewport; |
Eric Anholt | f1113fa | 2005-10-25 20:37:01 +0000 | [diff] [blame] | 735 | } |