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 #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"
49 #define DRI_CONF_TEXTURE_TILING(def) \
51 PUBLIC const char __driConfigOptions[] =
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
58 DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")
59 DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
60 DRI_CONF_ENUM(0, "Disable buffer object reuse")
61 DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
65 DRI_CONF_OPT_BEGIN(texture_tiling, bool, true)
66 DRI_CONF_DESC(en, "Enable texture tiling")
69 DRI_CONF_OPT_BEGIN(early_z, bool, false)
70 DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")
73 DRI_CONF_OPT_BEGIN(fragment_shader, bool, false)
74 DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")
78 DRI_CONF_SECTION_QUALITY
79 DRI_CONF_FORCE_S3TC_ENABLE(false)
80 DRI_CONF_ALLOW_LARGE_TEXTURES(2)
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)
87 DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false)
88 DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")
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 },
106 intelDRI2Flush(__DRIdrawable *drawable)
108 struct intel_context *intel = drawable->driContextPriv->driverPrivate;
111 INTEL_FIREVERTICES(intel);
113 if (intel->batch->map != intel->batch->ptr)
114 intel_batchbuffer_flush(intel->batch);
118 intelDRI2Invalidate(__DRIdrawable *drawable)
120 struct intel_context *intel = drawable->driContextPriv->driverPrivate;
122 intel->using_dri2_swapbuffers = GL_TRUE;
123 dri2InvalidateDrawable(drawable);
126 static const struct __DRI2flushExtensionRec intelFlushExtension = {
127 { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
133 intel_create_image_from_name(__DRIcontext *context,
134 int width, int height, int format,
135 int name, int pitch, void *loaderPrivate)
138 struct intel_context *intel = context->driverPrivate;
141 image = CALLOC(sizeof *image);
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;
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;
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;
166 image->data = loaderPrivate;
167 cpp = _mesa_get_format_bytes(image->format);
169 image->region = intel_region_alloc_for_handle(intel, cpp, width, height,
170 pitch, name, "image");
171 if (image->region == NULL) {
180 intel_create_image_from_renderbuffer(__DRIcontext *context,
181 int renderbuffer, void *loaderPrivate)
184 struct intel_context *intel = context->driverPrivate;
185 struct gl_renderbuffer *rb;
186 struct intel_renderbuffer *irb;
188 rb = _mesa_lookup_renderbuffer(&intel->ctx, renderbuffer);
190 _mesa_error(&intel->ctx,
191 GL_INVALID_OPERATION, "glRenderbufferExternalMESA");
195 irb = intel_renderbuffer(rb);
196 image = CALLOC(sizeof *image);
200 image->internal_format = rb->InternalFormat;
201 image->format = rb->Format;
202 image->data_type = rb->DataType;
203 image->data = loaderPrivate;
204 intel_region_reference(&image->region, irb->region);
210 intel_destroy_image(__DRIimage *image)
212 intel_region_release(&image->region);
216 static struct __DRIimageExtensionRec intelImageExtension = {
217 { __DRI_IMAGE, __DRI_IMAGE_VERSION },
218 intel_create_image_from_name,
219 intel_create_image_from_renderbuffer,
223 static const __DRIextension *intelScreenExtensions[] = {
224 &driReadDrawableExtension,
225 &intelTexBufferExtension.base,
226 &intelFlushExtension.base,
227 &intelImageExtension.base,
232 intel_get_param(__DRIscreen *psp, int param, int *value)
235 struct drm_i915_getparam gp;
240 ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
242 _mesa_warning(NULL, "drm_i915_getparam: %d", ret);
250 nop_callback(GLuint key, void *data, void *userData)
255 intelDestroyScreen(__DRIscreen * sPriv)
257 struct intel_screen *intelScreen = sPriv->private;
259 dri_bufmgr_destroy(intelScreen->bufmgr);
260 driDestroyOptionInfo(&intelScreen->optionCache);
262 /* Some regions may still have references to them at this point, so
263 * flush the hash table to prevent _mesa_DeleteHashTable() from
264 * complaining about the hash not being empty; */
265 _mesa_HashDeleteAll(intelScreen->named_regions, nop_callback, NULL);
266 _mesa_DeleteHashTable(intelScreen->named_regions);
269 sPriv->private = NULL;
274 * This is called when we need to set up GL rendering to a new X window.
277 intelCreateBuffer(__DRIscreen * driScrnPriv,
278 __DRIdrawable * driDrawPriv,
279 const __GLcontextModes * mesaVis, GLboolean isPixmap)
281 struct intel_renderbuffer *rb;
284 return GL_FALSE; /* not implemented */
287 GLboolean swStencil = (mesaVis->stencilBits > 0 &&
288 mesaVis->depthBits != 24);
291 struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);
296 _mesa_initialize_window_framebuffer(fb, mesaVis);
298 if (mesaVis->redBits == 5)
299 rgbFormat = MESA_FORMAT_RGB565;
300 else if (mesaVis->alphaBits == 0)
301 rgbFormat = MESA_FORMAT_XRGB8888;
303 rgbFormat = MESA_FORMAT_ARGB8888;
305 /* setup the hardware-based renderbuffers */
306 rb = intel_create_renderbuffer(rgbFormat);
307 _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base);
309 if (mesaVis->doubleBufferMode) {
310 rb = intel_create_renderbuffer(rgbFormat);
311 _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base);
314 if (mesaVis->depthBits == 24) {
315 assert(mesaVis->stencilBits == 8);
316 /* combined depth/stencil buffer */
317 struct intel_renderbuffer *depthStencilRb
318 = intel_create_renderbuffer(MESA_FORMAT_S8_Z24);
319 /* note: bind RB to two attachment points */
320 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthStencilRb->Base);
321 _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &depthStencilRb->Base);
323 else if (mesaVis->depthBits == 16) {
324 /* just 16-bit depth buffer, no hw stencil */
325 struct intel_renderbuffer *depthRb
326 = intel_create_renderbuffer(MESA_FORMAT_Z16);
327 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
330 /* now add any/all software-based renderbuffers we may need */
331 _mesa_add_soft_renderbuffers(fb,
332 GL_FALSE, /* never sw color */
333 GL_FALSE, /* never sw depth */
334 swStencil, mesaVis->accumRedBits > 0,
335 GL_FALSE, /* never sw alpha */
336 GL_FALSE /* never sw aux */ );
337 driDrawPriv->driverPrivate = fb;
344 intelDestroyBuffer(__DRIdrawable * driDrawPriv)
346 struct gl_framebuffer *fb = driDrawPriv->driverPrivate;
348 _mesa_reference_framebuffer(&fb, NULL);
351 /* There are probably better ways to do this, such as an
352 * init-designated function to register chipids and createcontext
355 extern GLboolean i830CreateContext(const __GLcontextModes * mesaVis,
356 __DRIcontext * driContextPriv,
357 void *sharedContextPrivate);
359 extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,
360 __DRIcontext * driContextPriv,
361 void *sharedContextPrivate);
362 extern GLboolean brwCreateContext(const __GLcontextModes * mesaVis,
363 __DRIcontext * driContextPriv,
364 void *sharedContextPrivate);
367 intelCreateContext(const __GLcontextModes * mesaVis,
368 __DRIcontext * driContextPriv,
369 void *sharedContextPrivate)
371 __DRIscreen *sPriv = driContextPriv->driScreenPriv;
372 struct intel_screen *intelScreen = sPriv->private;
375 if (IS_9XX(intelScreen->deviceID)) {
376 if (!IS_965(intelScreen->deviceID)) {
377 return i915CreateContext(mesaVis, driContextPriv,
378 sharedContextPrivate);
381 intelScreen->no_vbo = GL_TRUE;
382 return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
385 if (IS_965(intelScreen->deviceID))
386 return brwCreateContext(mesaVis, driContextPriv, sharedContextPrivate);
388 fprintf(stderr, "Unrecognized deviceID %x\n", intelScreen->deviceID);
393 intel_init_bufmgr(struct intel_screen *intelScreen)
395 __DRIscreen *spriv = intelScreen->driScrnPriv;
398 intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL;
400 intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
401 /* Otherwise, use the classic buffer manager. */
402 if (intelScreen->bufmgr == NULL) {
403 fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
408 if (!intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences) ||
410 fprintf(stderr, "[%s: %u] Kernel 2.6.29 required.\n", __func__, __LINE__);
414 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen->bufmgr);
416 intelScreen->named_regions = _mesa_NewHashTable();
422 * This is the driver specific part of the createNewScreen entry point.
423 * Called when using DRI2.
425 * \return the __GLcontextModes supported by this driver
428 __DRIconfig **intelInitScreen2(__DRIscreen *psp)
430 struct intel_screen *intelScreen;
434 static const GLenum back_buffer_modes[] = {
435 GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
437 uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
439 __DRIconfig **configs = NULL;
441 /* Allocate the private area */
442 intelScreen = CALLOC(sizeof *intelScreen);
444 fprintf(stderr, "\nERROR! Allocating private area failed\n");
447 /* parse information in __driConfigOptions */
448 driParseOptionInfo(&intelScreen->optionCache,
449 __driConfigOptions, __driNConfigOptions);
451 intelScreen->driScrnPriv = psp;
452 psp->private = (void *) intelScreen;
454 /* Determine chipset ID */
455 if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
456 &intelScreen->deviceID))
459 if (!intel_init_bufmgr(intelScreen))
462 psp->extensions = intelScreenExtensions;
464 msaa_samples_array[0] = 0;
466 fb_format[0] = GL_RGB;
467 fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;
469 fb_format[1] = GL_BGR;
470 fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;
472 fb_format[2] = GL_BGRA;
473 fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
478 /* Generate a rich set of useful configs that do not include an
479 * accumulation buffer.
481 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
482 __DRIconfig **new_configs;
485 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
486 * buffer that has a diffferent number of bits per pixel than the color
487 * buffer. This isn't yet supported here.
489 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
499 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
504 ARRAY_SIZE(back_buffer_modes),
506 ARRAY_SIZE(msaa_samples_array),
509 configs = new_configs;
511 configs = driConcatConfigs(configs, new_configs);
514 /* Generate the minimum possible set of configs that include an
515 * accumulation buffer.
517 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
518 __DRIconfig **new_configs;
520 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
528 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
529 depth_bits, stencil_bits, 1,
530 back_buffer_modes + 1, 1,
531 msaa_samples_array, 1,
534 configs = new_configs;
536 configs = driConcatConfigs(configs, new_configs);
539 if (configs == NULL) {
540 fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
545 return (const __DRIconfig **)configs;
548 const struct __DriverAPIRec driDriverAPI = {
549 .DestroyScreen = intelDestroyScreen,
550 .CreateContext = intelCreateContext,
551 .DestroyContext = intelDestroyContext,
552 .CreateBuffer = intelCreateBuffer,
553 .DestroyBuffer = intelDestroyBuffer,
554 .MakeCurrent = intelMakeCurrent,
555 .UnbindContext = intelUnbindContext,
556 .InitScreen2 = intelInitScreen2,
559 /* This is the table of extensions that the loader will dlsym() for. */
560 PUBLIC const __DRIextension *__driDriverExtensions[] = {
561 &driCoreExtension.base,
562 &driDRI2Extension.base,