1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
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"
38 PUBLIC const char __driConfigOptions[] =
40 DRI_CONF_SECTION_PERFORMANCE
41 DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)
42 /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
43 * DRI_CONF_BO_REUSE_ALL
45 DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")
46 DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
47 DRI_CONF_ENUM(0, "Disable buffer object reuse")
48 DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
52 DRI_CONF_OPT_BEGIN(texture_tiling, bool, true)
53 DRI_CONF_DESC(en, "Enable texture tiling")
56 DRI_CONF_OPT_BEGIN(early_z, bool, false)
57 DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")
60 DRI_CONF_OPT_BEGIN(fragment_shader, bool, true)
61 DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")
65 DRI_CONF_SECTION_QUALITY
66 DRI_CONF_FORCE_S3TC_ENABLE(false)
67 DRI_CONF_ALLOW_LARGE_TEXTURES(2)
69 DRI_CONF_SECTION_DEBUG
70 DRI_CONF_NO_RAST(false)
71 DRI_CONF_ALWAYS_FLUSH_BATCH(false)
72 DRI_CONF_ALWAYS_FLUSH_CACHE(false)
74 DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false)
75 DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")
80 const GLuint __driNConfigOptions = 11;
82 #include "intel_batchbuffer.h"
83 #include "intel_buffers.h"
84 #include "intel_bufmgr.h"
85 #include "intel_chipset.h"
86 #include "intel_fbo.h"
87 #include "intel_screen.h"
88 #include "intel_tex.h"
89 #include "intel_regions.h"
93 #ifdef USE_NEW_INTERFACE
94 static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
95 #endif /*USE_NEW_INTERFACE */
97 static const __DRItexBufferExtension intelTexBufferExtension = {
98 { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
104 intelDRI2Flush(__DRIdrawable *drawable)
106 struct intel_context *intel = drawable->driContextPriv->driverPrivate;
109 INTEL_FIREVERTICES(intel);
111 intel->need_throttle = GL_TRUE;
113 if (intel->batch->map != intel->batch->ptr)
114 intel_batchbuffer_flush(intel->batch);
117 static const struct __DRI2flushExtensionRec intelFlushExtension = {
118 { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
120 dri2InvalidateDrawable,
124 intel_create_image_from_name(__DRIscreen *screen,
125 int width, int height, int format,
126 int name, int pitch, void *loaderPrivate)
128 struct intel_screen *intelScreen = screen->private;
132 image = CALLOC(sizeof *image);
137 case __DRI_IMAGE_FORMAT_RGB565:
138 image->format = MESA_FORMAT_RGB565;
139 image->internal_format = GL_RGB;
140 image->data_type = GL_UNSIGNED_BYTE;
142 case __DRI_IMAGE_FORMAT_XRGB8888:
143 image->format = MESA_FORMAT_XRGB8888;
144 image->internal_format = GL_RGB;
145 image->data_type = GL_UNSIGNED_BYTE;
147 case __DRI_IMAGE_FORMAT_ARGB8888:
148 image->format = MESA_FORMAT_ARGB8888;
149 image->internal_format = GL_RGBA;
150 image->data_type = GL_UNSIGNED_BYTE;
157 image->data = loaderPrivate;
158 cpp = _mesa_get_format_bytes(image->format);
160 image->region = intel_region_alloc_for_handle(intelScreen,
162 pitch, name, "image");
163 if (image->region == NULL) {
172 intel_create_image_from_renderbuffer(__DRIcontext *context,
173 int renderbuffer, void *loaderPrivate)
176 struct intel_context *intel = context->driverPrivate;
177 struct gl_renderbuffer *rb;
178 struct intel_renderbuffer *irb;
180 rb = _mesa_lookup_renderbuffer(&intel->ctx, renderbuffer);
182 _mesa_error(&intel->ctx,
183 GL_INVALID_OPERATION, "glRenderbufferExternalMESA");
187 irb = intel_renderbuffer(rb);
188 image = CALLOC(sizeof *image);
192 image->internal_format = rb->InternalFormat;
193 image->format = rb->Format;
194 image->data_type = rb->DataType;
195 image->data = loaderPrivate;
196 intel_region_reference(&image->region, irb->region);
202 intel_destroy_image(__DRIimage *image)
204 intel_region_release(&image->region);
209 intel_create_image(__DRIscreen *screen,
210 int width, int height, int format,
215 struct intel_screen *intelScreen = screen->private;
218 image = CALLOC(sizeof *image);
223 case __DRI_IMAGE_FORMAT_RGB565:
224 image->format = MESA_FORMAT_RGB565;
225 image->internal_format = GL_RGB;
226 image->data_type = GL_UNSIGNED_BYTE;
228 case __DRI_IMAGE_FORMAT_XRGB8888:
229 image->format = MESA_FORMAT_XRGB8888;
230 image->internal_format = GL_RGB;
231 image->data_type = GL_UNSIGNED_BYTE;
233 case __DRI_IMAGE_FORMAT_ARGB8888:
234 image->format = MESA_FORMAT_ARGB8888;
235 image->internal_format = GL_RGBA;
236 image->data_type = GL_UNSIGNED_BYTE;
243 image->data = loaderPrivate;
244 cpp = _mesa_get_format_bytes(image->format);
247 intel_region_alloc(intelScreen, I915_TILING_NONE,
248 cpp, width, height, GL_TRUE);
249 if (image->region == NULL) {
258 intel_query_image(__DRIimage *image, int attrib, int *value)
261 case __DRI_IMAGE_ATTRIB_STRIDE:
262 *value = image->region->pitch * image->region->cpp;
264 case __DRI_IMAGE_ATTRIB_HANDLE:
265 *value = image->region->buffer->handle;
267 case __DRI_IMAGE_ATTRIB_NAME:
268 return intel_region_flink(image->region, (uint32_t *) value);
274 static struct __DRIimageExtensionRec intelImageExtension = {
275 { __DRI_IMAGE, __DRI_IMAGE_VERSION },
276 intel_create_image_from_name,
277 intel_create_image_from_renderbuffer,
283 static const __DRIextension *intelScreenExtensions[] = {
284 &driReadDrawableExtension,
285 &intelTexBufferExtension.base,
286 &intelFlushExtension.base,
287 &intelImageExtension.base,
288 &dri2ConfigQueryExtension.base,
293 intel_get_param(__DRIscreen *psp, int param, int *value)
296 struct drm_i915_getparam gp;
301 ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
303 _mesa_warning(NULL, "drm_i915_getparam: %d", ret);
311 nop_callback(GLuint key, void *data, void *userData)
316 intelDestroyScreen(__DRIscreen * sPriv)
318 struct intel_screen *intelScreen = sPriv->private;
320 dri_bufmgr_destroy(intelScreen->bufmgr);
321 driDestroyOptionInfo(&intelScreen->optionCache);
323 /* Some regions may still have references to them at this point, so
324 * flush the hash table to prevent _mesa_DeleteHashTable() from
325 * complaining about the hash not being empty; */
326 _mesa_HashDeleteAll(intelScreen->named_regions, nop_callback, NULL);
327 _mesa_DeleteHashTable(intelScreen->named_regions);
330 sPriv->private = NULL;
335 * This is called when we need to set up GL rendering to a new X window.
338 intelCreateBuffer(__DRIscreen * driScrnPriv,
339 __DRIdrawable * driDrawPriv,
340 const struct gl_config * mesaVis, GLboolean isPixmap)
342 struct intel_renderbuffer *rb;
345 return GL_FALSE; /* not implemented */
348 GLboolean swStencil = (mesaVis->stencilBits > 0 &&
349 mesaVis->depthBits != 24);
352 struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);
357 _mesa_initialize_window_framebuffer(fb, mesaVis);
359 if (mesaVis->redBits == 5)
360 rgbFormat = MESA_FORMAT_RGB565;
361 else if (mesaVis->alphaBits == 0)
362 rgbFormat = MESA_FORMAT_XRGB8888;
364 rgbFormat = MESA_FORMAT_ARGB8888;
366 /* setup the hardware-based renderbuffers */
367 rb = intel_create_renderbuffer(rgbFormat);
368 _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base);
370 if (mesaVis->doubleBufferMode) {
371 rb = intel_create_renderbuffer(rgbFormat);
372 _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base);
375 if (mesaVis->depthBits == 24) {
376 assert(mesaVis->stencilBits == 8);
377 /* combined depth/stencil buffer */
378 struct intel_renderbuffer *depthStencilRb
379 = intel_create_renderbuffer(MESA_FORMAT_S8_Z24);
380 /* note: bind RB to two attachment points */
381 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthStencilRb->Base);
382 _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &depthStencilRb->Base);
384 else if (mesaVis->depthBits == 16) {
385 /* just 16-bit depth buffer, no hw stencil */
386 struct intel_renderbuffer *depthRb
387 = intel_create_renderbuffer(MESA_FORMAT_Z16);
388 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
391 /* now add any/all software-based renderbuffers we may need */
392 _mesa_add_soft_renderbuffers(fb,
393 GL_FALSE, /* never sw color */
394 GL_FALSE, /* never sw depth */
395 swStencil, mesaVis->accumRedBits > 0,
396 GL_FALSE, /* never sw alpha */
397 GL_FALSE /* never sw aux */ );
398 driDrawPriv->driverPrivate = fb;
405 intelDestroyBuffer(__DRIdrawable * driDrawPriv)
407 struct gl_framebuffer *fb = driDrawPriv->driverPrivate;
409 _mesa_reference_framebuffer(&fb, NULL);
412 /* There are probably better ways to do this, such as an
413 * init-designated function to register chipids and createcontext
416 extern GLboolean i830CreateContext(const struct gl_config * mesaVis,
417 __DRIcontext * driContextPriv,
418 void *sharedContextPrivate);
420 extern GLboolean i915CreateContext(int api,
421 const struct gl_config * mesaVis,
422 __DRIcontext * driContextPriv,
423 void *sharedContextPrivate);
424 extern GLboolean brwCreateContext(int api,
425 const struct gl_config * mesaVis,
426 __DRIcontext * driContextPriv,
427 void *sharedContextPrivate);
430 intelCreateContext(gl_api api,
431 const struct gl_config * mesaVis,
432 __DRIcontext * driContextPriv,
433 void *sharedContextPrivate)
435 __DRIscreen *sPriv = driContextPriv->driScreenPriv;
436 struct intel_screen *intelScreen = sPriv->private;
439 if (IS_9XX(intelScreen->deviceID)) {
440 if (!IS_965(intelScreen->deviceID)) {
441 return i915CreateContext(api, mesaVis, driContextPriv,
442 sharedContextPrivate);
445 intelScreen->no_vbo = GL_TRUE;
446 return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
449 if (IS_965(intelScreen->deviceID))
450 return brwCreateContext(api, mesaVis,
451 driContextPriv, sharedContextPrivate);
453 fprintf(stderr, "Unrecognized deviceID 0x%x\n", intelScreen->deviceID);
458 intel_init_bufmgr(struct intel_screen *intelScreen)
460 __DRIscreen *spriv = intelScreen->driScrnPriv;
463 intelScreen->no_hw = (getenv("INTEL_NO_HW") != NULL ||
464 getenv("INTEL_DEVID_OVERRIDE") != NULL);
466 intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
467 if (intelScreen->bufmgr == NULL) {
468 fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
473 if (!intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences) ||
475 fprintf(stderr, "[%s: %u] Kernel 2.6.29 required.\n", __func__, __LINE__);
479 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen->bufmgr);
481 intelScreen->named_regions = _mesa_NewHashTable();
487 * This is the driver specific part of the createNewScreen entry point.
488 * Called when using DRI2.
490 * \return the struct gl_config supported by this driver
493 __DRIconfig **intelInitScreen2(__DRIscreen *psp)
495 struct intel_screen *intelScreen;
498 unsigned int api_mask;
499 char *devid_override;
501 static const GLenum back_buffer_modes[] = {
502 GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
504 uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
506 __DRIconfig **configs = NULL;
508 /* Allocate the private area */
509 intelScreen = CALLOC(sizeof *intelScreen);
511 fprintf(stderr, "\nERROR! Allocating private area failed\n");
514 /* parse information in __driConfigOptions */
515 driParseOptionInfo(&intelScreen->optionCache,
516 __driConfigOptions, __driNConfigOptions);
518 intelScreen->driScrnPriv = psp;
519 psp->private = (void *) intelScreen;
521 /* Determine chipset ID */
522 if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
523 &intelScreen->deviceID))
526 /* Allow an override of the device ID for the purpose of making the
527 * driver produce dumps for debugging of new chipset enablement.
528 * This implies INTEL_NO_HW, to avoid programming your actual GPU
531 devid_override = getenv("INTEL_DEVID_OVERRIDE");
532 if (devid_override) {
533 intelScreen->deviceID = strtod(devid_override, NULL);
536 api_mask = (1 << __DRI_API_OPENGL);
538 api_mask |= (1 << __DRI_API_GLES);
541 api_mask |= (1 << __DRI_API_GLES2);
544 if (IS_9XX(intelScreen->deviceID) || IS_965(intelScreen->deviceID))
545 psp->api_mask = api_mask;
547 if (!intel_init_bufmgr(intelScreen))
550 psp->extensions = intelScreenExtensions;
552 msaa_samples_array[0] = 0;
554 fb_format[0] = GL_RGB;
555 fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;
557 fb_format[1] = GL_BGR;
558 fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;
560 fb_format[2] = GL_BGRA;
561 fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
566 /* Generate a rich set of useful configs that do not include an
567 * accumulation buffer.
569 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
570 __DRIconfig **new_configs;
573 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
574 * buffer that has a diffferent number of bits per pixel than the color
575 * buffer. This isn't yet supported here.
577 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
587 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
592 ARRAY_SIZE(back_buffer_modes),
594 ARRAY_SIZE(msaa_samples_array),
597 configs = new_configs;
599 configs = driConcatConfigs(configs, new_configs);
602 /* Generate the minimum possible set of configs that include an
603 * accumulation buffer.
605 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
606 __DRIconfig **new_configs;
608 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
616 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
617 depth_bits, stencil_bits, 1,
618 back_buffer_modes + 1, 1,
619 msaa_samples_array, 1,
622 configs = new_configs;
624 configs = driConcatConfigs(configs, new_configs);
627 if (configs == NULL) {
628 fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
633 return (const __DRIconfig **)configs;
636 const struct __DriverAPIRec driDriverAPI = {
637 .DestroyScreen = intelDestroyScreen,
638 .CreateContext = intelCreateContext,
639 .DestroyContext = intelDestroyContext,
640 .CreateBuffer = intelCreateBuffer,
641 .DestroyBuffer = intelDestroyBuffer,
642 .MakeCurrent = intelMakeCurrent,
643 .UnbindContext = intelUnbindContext,
644 .InitScreen2 = intelInitScreen2,
647 /* This is the table of extensions that the loader will dlsym() for. */
648 PUBLIC const __DRIextension *__driDriverExtensions[] = {
649 &driCoreExtension.base,
650 &driDRI2Extension.base,