git.libre-soc.org Git - mesa.git/blob - src/mesa/drivers/dri/intel/intel

1 /**************************************************************************

2 *

5 *

6 * Permission is hereby granted, free of charge, to any person obtaining a

7 * copy of this software and associated documentation files (the

8 * "Software"), to deal in the Software without restriction, including

9 * without limitation the rights to use, copy, modify, merge, publish,

10 * distribute, sub license, and/or sell copies of the Software, and to

11 * permit persons to whom the Software is furnished to do so, subject to

12 * the following conditions:

13 *

14 * The above copyright notice and this permission notice (including the

15 * next paragraph) shall be included in all copies or substantial portions

16 * of the Software.

17 *

18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

25 *

26 **************************************************************************/

28 #include "main/glheader.h"

29 #include "main/context.h"

30 #include "main/framebuffer.h"

31 #include "main/renderbuffer.h"

32 #include "main/hash.h"

33 #include "main/fbobject.h"

35 #include "utils.h"

36 #include "xmlpool.h"

38 #include "intel_batchbuffer.h"

39 #include "intel_buffers.h"

40 #include "intel_bufmgr.h"

41 #include "intel_chipset.h"

42 #include "intel_fbo.h"

43 #include "intel_screen.h"

44 #include "intel_tex.h"

45 #include "intel_regions.h"

47 #include "i915_drm.h"

49 #define DRI_CONF_TEXTURE_TILING(def) \

51 PUBLIC const char __driConfigOptions[] =

52 DRI_CONF_BEGIN

53 DRI_CONF_SECTION_PERFORMANCE

54 DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)

55 /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,

56 * DRI_CONF_BO_REUSE_ALL

57 */

       DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")

          DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")

             DRI_CONF_ENUM(0, "Disable buffer object reuse")

             DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")

62 DRI_CONF_DESC_END

63 DRI_CONF_OPT_END

       DRI_CONF_OPT_BEGIN(texture_tiling, bool, true)

          DRI_CONF_DESC(en, "Enable texture tiling")

67 DRI_CONF_OPT_END

       DRI_CONF_OPT_BEGIN(early_z, bool, false)

          DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")

71 DRI_CONF_OPT_END

       DRI_CONF_OPT_BEGIN(fragment_shader, bool, false)

          DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")

75 DRI_CONF_OPT_END

77 DRI_CONF_SECTION_END

78 DRI_CONF_SECTION_QUALITY

79 DRI_CONF_FORCE_S3TC_ENABLE(false)

80 DRI_CONF_ALLOW_LARGE_TEXTURES(2)

81 DRI_CONF_SECTION_END

82 DRI_CONF_SECTION_DEBUG

83 DRI_CONF_NO_RAST(false)

84 DRI_CONF_ALWAYS_FLUSH_BATCH(false)

85 DRI_CONF_ALWAYS_FLUSH_CACHE(false)

       DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false)

          DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")

89 DRI_CONF_OPT_END

90 DRI_CONF_SECTION_END

91 DRI_CONF_END;

93 const GLuint __driNConfigOptions = 11;

95 #ifdef USE_NEW_INTERFACE

96 static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;

97 #endif /*USE_NEW_INTERFACE */

99 static const __DRItexBufferExtension intelTexBufferExtension = {

100 { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },

101 intelSetTexBuffer,

102 intelSetTexBuffer2,

103 };

104

105 static void

106 intelDRI2Flush(__DRIdrawable *drawable)

107 {

    struct intel_context *intel = drawable->driContextPriv->driverPrivate;

109

    if (intel->gen < 4)

111 INTEL_FIREVERTICES(intel);

112

    if (intel->batch->map != intel->batch->ptr)

114 intel_batchbuffer_flush(intel->batch);

115 }

116

117 static void

118 intelDRI2Invalidate(__DRIdrawable *drawable)

119 {

    struct intel_context *intel = drawable->driContextPriv->driverPrivate;

121

122 intel->using_dri2_swapbuffers = GL_TRUE;

123 dri2InvalidateDrawable(drawable);

124 }

125

126 static const struct __DRI2flushExtensionRec intelFlushExtension = {

127 { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },

128 intelDRI2Flush,

129 intelDRI2Invalidate,

130 };

131

132 static __DRIimage *

133 intel_create_image_from_name(__DRIcontext *context,

                              int width, int height, int format,

                              int name, int pitch, void *loaderPrivate)

136 {

137 __DRIimage *image;

     struct intel_context *intel = context->driverPrivate;

139 int cpp;

140

     image = CALLOC(sizeof *image);

142 if (image == NULL)

143 return NULL;

144

145 switch (format) {

146 case __DRI_IMAGE_FORMAT_RGB565:

147 image->format = MESA_FORMAT_RGB565;

148 image->internal_format = GL_RGB;

149 image->data_type = GL_UNSIGNED_BYTE;

150 break;

151 case __DRI_IMAGE_FORMAT_XRGB8888:

152 image->format = MESA_FORMAT_XRGB8888;

153 image->internal_format = GL_RGB;

154 image->data_type = GL_UNSIGNED_BYTE;

155 break;

156 case __DRI_IMAGE_FORMAT_ARGB8888:

157 image->format = MESA_FORMAT_ARGB8888;

158 image->internal_format = GL_RGBA;

159 image->data_type = GL_UNSIGNED_BYTE;

160 break;

161 default:

162 free(image);

163 return NULL;

164 }

165

166 image->data = loaderPrivate;

     cpp = _mesa_get_format_bytes(image->format);

168

     image->region = intel_region_alloc_for_handle(intel, cpp, width, height,

170 pitch, name, "image");

     if (image->region == NULL) {

172 FREE(image);

173 return NULL;

174 }

175

176 return image;

177 }

178

179 static __DRIimage *

180 intel_create_image_from_renderbuffer(__DRIcontext *context,

                                      int renderbuffer, void *loaderPrivate)

182 {

183 __DRIimage *image;

    struct intel_context *intel = context->driverPrivate;

185 struct gl_renderbuffer *rb;

186 struct intel_renderbuffer *irb;

187

    rb = _mesa_lookup_renderbuffer(&intel->ctx, renderbuffer);

189 if (!rb) {

190 _mesa_error(&intel->ctx,

191 GL_INVALID_OPERATION, "glRenderbufferExternalMESA");

192 return NULL;

193 }

194

195 irb = intel_renderbuffer(rb);

    image = CALLOC(sizeof *image);

197 if (image == NULL)

198 return NULL;

199

200 image->internal_format = rb->InternalFormat;

201 image->format = rb->Format;

202 image->data_type = rb->DataType;

203 image->data = loaderPrivate;

    intel_region_reference(&image->region, irb->region);

205

206 return image;

207 }

208

209 static void

210 intel_destroy_image(__DRIimage *image)

211 {

212 intel_region_release(&image->region);

213 FREE(image);

214 }

215

216 static struct __DRIimageExtensionRec intelImageExtension = {

217 { __DRI_IMAGE, __DRI_IMAGE_VERSION },

218 intel_create_image_from_name,

219 intel_create_image_from_renderbuffer,

220 intel_destroy_image,

221 };

222

223 static const __DRIextension *intelScreenExtensions[] = {

224 &driReadDrawableExtension,

225 &intelTexBufferExtension.base,

226 &intelFlushExtension.base,

227 &intelImageExtension.base,

228 &dri2ConfigQueryExtension.base,

229 NULL

230 };

231

232 static GLboolean

 intel_get_param(__DRIscreen *psp, int param, int *value)

234 {

235 int ret;

236 struct drm_i915_getparam gp;

237

238 gp.param = param;

239 gp.value = value;

240

    ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));

242 if (ret) {

       _mesa_warning(NULL, "drm_i915_getparam: %d", ret);

244 return GL_FALSE;

245 }

246

247 return GL_TRUE;

248 }

249

250 static void

 nop_callback(GLuint key, void *data, void *userData)

252 {

253 }

254

255 static void

256 intelDestroyScreen(__DRIscreen * sPriv)

257 {

    struct intel_screen *intelScreen = sPriv->private;

259

260 dri_bufmgr_destroy(intelScreen->bufmgr);

261 driDestroyOptionInfo(&intelScreen->optionCache);

262

263 /* Some regions may still have references to them at this point, so

264 * flush the hash table to prevent _mesa_DeleteHashTable() from

265 * complaining about the hash not being empty; */

    _mesa_HashDeleteAll(intelScreen->named_regions, nop_callback, NULL);

267 _mesa_DeleteHashTable(intelScreen->named_regions);

268

269 FREE(intelScreen);

270 sPriv->private = NULL;

271 }

272

273

274 /**

275 * This is called when we need to set up GL rendering to a new X window.

276 */

277 static GLboolean

278 intelCreateBuffer(__DRIscreen * driScrnPriv,

279 __DRIdrawable * driDrawPriv,

280 const __GLcontextModes * mesaVis, GLboolean isPixmap)

281 {

282 struct intel_renderbuffer *rb;

283

284 if (isPixmap) {

285 return GL_FALSE; /* not implemented */

286 }

287 else {

       GLboolean swStencil = (mesaVis->stencilBits > 0 &&

289 mesaVis->depthBits != 24);

290 gl_format rgbFormat;

291

       struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);

293

294 if (!fb)

295 return GL_FALSE;

296

297 _mesa_initialize_window_framebuffer(fb, mesaVis);

298

       if (mesaVis->redBits == 5)

300 rgbFormat = MESA_FORMAT_RGB565;

       else if (mesaVis->alphaBits == 0)

302 rgbFormat = MESA_FORMAT_XRGB8888;

303 else

304 rgbFormat = MESA_FORMAT_ARGB8888;

305

306 /* setup the hardware-based renderbuffers */

307 rb = intel_create_renderbuffer(rgbFormat);

       _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base);

309

310 if (mesaVis->doubleBufferMode) {

311 rb = intel_create_renderbuffer(rgbFormat);

          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base);

313 }

314

       if (mesaVis->depthBits == 24) {

          assert(mesaVis->stencilBits == 8);

317 /* combined depth/stencil buffer */

318 struct intel_renderbuffer *depthStencilRb

319 = intel_create_renderbuffer(MESA_FORMAT_S8_Z24);

320 /* note: bind RB to two attachment points */

          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthStencilRb->Base);

          _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &depthStencilRb->Base);

323 }

       else if (mesaVis->depthBits == 16) {

325 /* just 16-bit depth buffer, no hw stencil */

326 struct intel_renderbuffer *depthRb

327 = intel_create_renderbuffer(MESA_FORMAT_Z16);

          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);

329 }

330

331 /* now add any/all software-based renderbuffers we may need */

332 _mesa_add_soft_renderbuffers(fb,

333 GL_FALSE, /* never sw color */

334 GL_FALSE, /* never sw depth */

                                    swStencil, mesaVis->accumRedBits > 0,

336 GL_FALSE, /* never sw alpha */

337 GL_FALSE /* never sw aux */ );

338 driDrawPriv->driverPrivate = fb;

339

340 return GL_TRUE;

341 }

342 }

343

344 static void

345 intelDestroyBuffer(__DRIdrawable * driDrawPriv)

346 {

     struct gl_framebuffer *fb = driDrawPriv->driverPrivate;

348

349 _mesa_reference_framebuffer(&fb, NULL);

350 }

351

352 /* There are probably better ways to do this, such as an

353 * init-designated function to register chipids and createcontext

354 * functions.

355 */

 extern GLboolean i830CreateContext(const __GLcontextModes * mesaVis,

357 __DRIcontext * driContextPriv,

358 void *sharedContextPrivate);

359

 extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,

361 __DRIcontext * driContextPriv,

362 void *sharedContextPrivate);

 extern GLboolean brwCreateContext(const __GLcontextModes * mesaVis,

364 __DRIcontext * driContextPriv,

365 void *sharedContextPrivate);

366

367 static GLboolean

 intelCreateContext(const __GLcontextModes * mesaVis,

369 __DRIcontext * driContextPriv,

370 void *sharedContextPrivate)

371 {

372 __DRIscreen *sPriv = driContextPriv->driScreenPriv;

    struct intel_screen *intelScreen = sPriv->private;

374

375 #ifdef I915

    if (IS_9XX(intelScreen->deviceID)) {

       if (!IS_965(intelScreen->deviceID)) {

          return i915CreateContext(mesaVis, driContextPriv,

379 sharedContextPrivate);

380 }

381 } else {

382 intelScreen->no_vbo = GL_TRUE;

       return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);

384 }

385 #else

    if (IS_965(intelScreen->deviceID))

       return brwCreateContext(mesaVis, driContextPriv, sharedContextPrivate);

388 #endif

    fprintf(stderr, "Unrecognized deviceID %x\n", intelScreen->deviceID);

390 return GL_FALSE;

391 }

392

393 static GLboolean

 intel_init_bufmgr(struct intel_screen *intelScreen)

395 {

396 __DRIscreen *spriv = intelScreen->driScrnPriv;

397 int num_fences = 0;

398

    intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL;

400

    intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);

402 /* Otherwise, use the classic buffer manager. */

    if (intelScreen->bufmgr == NULL) {

       fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",

405 __func__, __LINE__);

406 return GL_FALSE;

407 }

408

    if (!intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences) ||

410 num_fences == 0) {

       fprintf(stderr, "[%s: %u] Kernel 2.6.29 required.\n", __func__, __LINE__);

412 return GL_FALSE;

413 }

414

415 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen->bufmgr);

416

417 intelScreen->named_regions = _mesa_NewHashTable();

418

419 return GL_TRUE;

420 }

421

422 /**

423 * This is the driver specific part of the createNewScreen entry point.

424 * Called when using DRI2.

425 *

426 * \return the __GLcontextModes supported by this driver

427 */

428 static const

 __DRIconfig **intelInitScreen2(__DRIscreen *psp)

430 {

431 struct intel_screen *intelScreen;

432 GLenum fb_format[3];

433 GLenum fb_type[3];

434

435 static const GLenum back_buffer_modes[] = {

436 GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML

437 };

    uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];

439 int color;

440 __DRIconfig **configs = NULL;

441

442 /* Allocate the private area */

    intelScreen = CALLOC(sizeof *intelScreen);

444 if (!intelScreen) {

       fprintf(stderr, "\nERROR!  Allocating private area failed\n");

446 return GL_FALSE;

447 }

448 /* parse information in __driConfigOptions */

449 driParseOptionInfo(&intelScreen->optionCache,

450 __driConfigOptions, __driNConfigOptions);

451

452 intelScreen->driScrnPriv = psp;

    psp->private = (void *) intelScreen;

454

455 /* Determine chipset ID */

    if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,

457 &intelScreen->deviceID))

458 return GL_FALSE;

459

    if (!intel_init_bufmgr(intelScreen))

461 return GL_FALSE;

462

463 psp->extensions = intelScreenExtensions;

464

    msaa_samples_array[0] = 0;

466

467 fb_format[0] = GL_RGB;

468 fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;

469

470 fb_format[1] = GL_BGR;

471 fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;

472

473 fb_format[2] = GL_BGRA;

474 fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;

475

    depth_bits[0] = 0;

    stencil_bits[0] = 0;

478

479 /* Generate a rich set of useful configs that do not include an

480 * accumulation buffer.

481 */

    for (color = 0; color < ARRAY_SIZE(fb_format); color++) {

483 __DRIconfig **new_configs;

484 int depth_factor;

485

486 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil

487 * buffer that has a diffferent number of bits per pixel than the color

488 * buffer. This isn't yet supported here.

489 */

       if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {

          depth_bits[1] = 16;

          stencil_bits[1] = 0;

493 } else {

          depth_bits[1] = 24;

          stencil_bits[1] = 8;

496 }

497

498 depth_factor = 2;

499

       new_configs = driCreateConfigs(fb_format[color], fb_type[color],

501 depth_bits,

502 stencil_bits,

503 depth_factor,

504 back_buffer_modes,

505 ARRAY_SIZE(back_buffer_modes),

506 msaa_samples_array,

507 ARRAY_SIZE(msaa_samples_array),

508 GL_FALSE);

509 if (configs == NULL)

510 configs = new_configs;

511 else

          configs = driConcatConfigs(configs, new_configs);

513 }

514

515 /* Generate the minimum possible set of configs that include an

516 * accumulation buffer.

517 */

    for (color = 0; color < ARRAY_SIZE(fb_format); color++) {

519 __DRIconfig **new_configs;

520

       if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {

          depth_bits[0] = 16;

          stencil_bits[0] = 0;

524 } else {

          depth_bits[0] = 24;

          stencil_bits[0] = 8;

527 }

528

       new_configs = driCreateConfigs(fb_format[color], fb_type[color],

530 depth_bits, stencil_bits, 1,

                                      back_buffer_modes + 1, 1,

532 msaa_samples_array, 1,

533 GL_TRUE);

534 if (configs == NULL)

535 configs = new_configs;

536 else

          configs = driConcatConfigs(configs, new_configs);

538 }

539

540 if (configs == NULL) {

       fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,

542 __LINE__);

543 return NULL;

544 }

545

    return (const __DRIconfig **)configs;

547 }

548

549 const struct __DriverAPIRec driDriverAPI = {

550 .DestroyScreen = intelDestroyScreen,

551 .CreateContext = intelCreateContext,

552 .DestroyContext = intelDestroyContext,

553 .CreateBuffer = intelCreateBuffer,

554 .DestroyBuffer = intelDestroyBuffer,

555 .MakeCurrent = intelMakeCurrent,

556 .UnbindContext = intelUnbindContext,

557 .InitScreen2 = intelInitScreen2,

558 };

559

560 /* This is the table of extensions that the loader will dlsym() for. */

561 PUBLIC const __DRIextension *__driDriverExtensions[] = {

562 &driCoreExtension.base,

563 &driDRI2Extension.base,

564 NULL

565 };