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"
36 #include "intel_batchbuffer.h"
37 #include "intel_buffers.h"
38 #include "intel_bufmgr.h"
39 #include "intel_chipset.h"
40 #include "intel_fbo.h"
41 #include "intel_regions.h"
42 #include "intel_screen.h"
43 #include "intel_tex.h"
48 #define DRI_CONF_TEXTURE_TILING(def) \
49 DRI_CONF_OPT_BEGIN(texture_tiling, bool, def) \
50 DRI_CONF_DESC(en, "Enable texture tiling") \
53 PUBLIC const char __driConfigOptions[] =
55 DRI_CONF_SECTION_PERFORMANCE
56 DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)
57 /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
58 * DRI_CONF_BO_REUSE_ALL
60 DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")
61 DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
62 DRI_CONF_ENUM(0, "Disable buffer object reuse")
63 DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
68 DRI_CONF_TEXTURE_TILING(false)
70 DRI_CONF_TEXTURE_TILING(true)
73 DRI_CONF_OPT_BEGIN(early_z, bool, false)
74 DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")
77 DRI_CONF_OPT_BEGIN(fragment_shader, bool, false)
78 DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")
82 DRI_CONF_SECTION_QUALITY
83 DRI_CONF_FORCE_S3TC_ENABLE(false)
84 DRI_CONF_ALLOW_LARGE_TEXTURES(2)
86 DRI_CONF_SECTION_DEBUG
87 DRI_CONF_NO_RAST(false)
88 DRI_CONF_ALWAYS_FLUSH_BATCH(false)
89 DRI_CONF_ALWAYS_FLUSH_CACHE(false)
91 DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false)
92 DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")
97 const GLuint __driNConfigOptions = 11;
99 #ifdef USE_NEW_INTERFACE
100 static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
101 #endif /*USE_NEW_INTERFACE */
103 static const __DRItexOffsetExtension intelTexOffsetExtension = {
104 { __DRI_TEX_OFFSET },
108 static const __DRItexBufferExtension intelTexBufferExtension = {
109 { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
115 intelDRI2Flush(__DRIdrawable *drawable)
117 struct intel_context *intel = drawable->driContextPriv->driverPrivate;
120 INTEL_FIREVERTICES(intel);
122 if (intel->batch->map != intel->batch->ptr)
123 intel_batchbuffer_flush(intel->batch);
127 intelDRI2FlushInvalidate(__DRIdrawable *drawable)
129 struct intel_context *intel = drawable->driContextPriv->driverPrivate;
131 intelDRI2Flush(drawable);
132 drawable->validBuffers = GL_FALSE;
134 /* We're using FlushInvalidate as an indicator that a frame is
135 * done. It's only called immediately after SwapBuffers, so it
136 * won't affect front-buffer rendering or applications explicitly
137 * managing swap regions using MESA_copy_buffer.
139 * Wait for the swapbuffers before the one we just emitted, so we don't
140 * get too many swaps outstanding for apps that are GPU-heavy but not
143 * Unfortunately, we don't have a handle to the batch containing the swap,
144 * and getting our hands on that doesn't seem worth it, so we just use the
145 * first batch we emitted after the last swap.
147 if (intel->first_post_swapbuffers_batch != NULL) {
148 drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch);
149 drm_intel_bo_unreference(intel->first_post_swapbuffers_batch);
150 intel->first_post_swapbuffers_batch = NULL;
154 static const struct __DRI2flushExtensionRec intelFlushExtension = {
155 { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
157 intelDRI2FlushInvalidate,
160 static const __DRIextension *intelScreenExtensions[] = {
161 &driReadDrawableExtension,
162 &intelTexOffsetExtension.base,
163 &intelTexBufferExtension.base,
164 &intelFlushExtension.base,
169 intel_get_param(__DRIscreen *psp, int param, int *value)
172 struct drm_i915_getparam gp;
177 ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
179 _mesa_warning(NULL, "drm_i915_getparam: %d", ret);
187 intelDestroyScreen(__DRIscreen * sPriv)
189 intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
191 dri_bufmgr_destroy(intelScreen->bufmgr);
192 driDestroyOptionInfo(&intelScreen->optionCache);
195 sPriv->private = NULL;
200 * This is called when we need to set up GL rendering to a new X window.
203 intelCreateBuffer(__DRIscreen * driScrnPriv,
204 __DRIdrawable * driDrawPriv,
205 const __GLcontextModes * mesaVis, GLboolean isPixmap)
207 struct intel_renderbuffer *rb;
210 return GL_FALSE; /* not implemented */
213 GLboolean swStencil = (mesaVis->stencilBits > 0 &&
214 mesaVis->depthBits != 24);
217 struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);
222 _mesa_initialize_framebuffer(fb, mesaVis);
224 if (mesaVis->redBits == 5)
225 rgbFormat = MESA_FORMAT_RGB565;
226 else if (mesaVis->alphaBits == 0)
227 rgbFormat = MESA_FORMAT_XRGB8888;
229 rgbFormat = MESA_FORMAT_ARGB8888;
231 /* setup the hardware-based renderbuffers */
232 rb = intel_create_renderbuffer(rgbFormat);
233 _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base);
235 if (mesaVis->doubleBufferMode) {
236 rb = intel_create_renderbuffer(rgbFormat);
237 _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base);
240 if (mesaVis->depthBits == 24) {
241 if (mesaVis->stencilBits == 8) {
242 /* combined depth/stencil buffer */
243 struct intel_renderbuffer *depthStencilRb
244 = intel_create_renderbuffer(MESA_FORMAT_S8_Z24);
245 /* note: bind RB to two attachment points */
246 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthStencilRb->Base);
247 _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &depthStencilRb->Base);
249 struct intel_renderbuffer *depthRb
250 = intel_create_renderbuffer(MESA_FORMAT_X8_Z24);
251 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
254 else if (mesaVis->depthBits == 16) {
255 /* just 16-bit depth buffer, no hw stencil */
256 struct intel_renderbuffer *depthRb
257 = intel_create_renderbuffer(MESA_FORMAT_Z16);
258 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
261 /* now add any/all software-based renderbuffers we may need */
262 _mesa_add_soft_renderbuffers(fb,
263 GL_FALSE, /* never sw color */
264 GL_FALSE, /* never sw depth */
265 swStencil, mesaVis->accumRedBits > 0,
266 GL_FALSE, /* never sw alpha */
267 GL_FALSE /* never sw aux */ );
268 driDrawPriv->driverPrivate = fb;
275 intelDestroyBuffer(__DRIdrawable * driDrawPriv)
277 struct gl_framebuffer *fb = driDrawPriv->driverPrivate;
279 _mesa_reference_framebuffer(&fb, NULL);
282 /* There are probably better ways to do this, such as an
283 * init-designated function to register chipids and createcontext
286 extern GLboolean i830CreateContext(const __GLcontextModes * mesaVis,
287 __DRIcontext * driContextPriv,
288 void *sharedContextPrivate);
290 extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,
291 __DRIcontext * driContextPriv,
292 void *sharedContextPrivate);
293 extern GLboolean brwCreateContext(const __GLcontextModes * mesaVis,
294 __DRIcontext * driContextPriv,
295 void *sharedContextPrivate);
298 intelCreateContext(const __GLcontextModes * mesaVis,
299 __DRIcontext * driContextPriv,
300 void *sharedContextPrivate)
302 __DRIscreen *sPriv = driContextPriv->driScreenPriv;
303 intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
306 if (IS_9XX(intelScreen->deviceID)) {
307 if (!IS_965(intelScreen->deviceID)) {
308 return i915CreateContext(mesaVis, driContextPriv,
309 sharedContextPrivate);
312 intelScreen->no_vbo = GL_TRUE;
313 return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
316 if (IS_965(intelScreen->deviceID))
317 return brwCreateContext(mesaVis, driContextPriv, sharedContextPrivate);
319 fprintf(stderr, "Unrecognized deviceID %x\n", intelScreen->deviceID);
324 intel_init_bufmgr(intelScreenPrivate *intelScreen)
326 __DRIscreen *spriv = intelScreen->driScrnPriv;
329 intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL;
331 intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
332 /* Otherwise, use the classic buffer manager. */
333 if (intelScreen->bufmgr == NULL) {
334 fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
339 if (intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences))
340 intelScreen->kernel_exec_fencing = !!num_fences;
342 intelScreen->kernel_exec_fencing = GL_FALSE;
348 * This is the driver specific part of the createNewScreen entry point.
349 * Called when using DRI2.
351 * \return the __GLcontextModes supported by this driver
354 __DRIconfig **intelInitScreen2(__DRIscreen *psp)
356 intelScreenPrivate *intelScreen;
360 static const GLenum back_buffer_modes[] = {
361 GLX_NONE, GLX_SWAP_UNDEFINED_OML,
362 GLX_SWAP_EXCHANGE_OML, GLX_SWAP_COPY_OML
364 uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
366 __DRIconfig **configs = NULL;
368 /* Allocate the private area */
369 intelScreen = (intelScreenPrivate *) CALLOC(sizeof(intelScreenPrivate));
371 fprintf(stderr, "\nERROR! Allocating private area failed\n");
374 /* parse information in __driConfigOptions */
375 driParseOptionInfo(&intelScreen->optionCache,
376 __driConfigOptions, __driNConfigOptions);
378 intelScreen->driScrnPriv = psp;
379 psp->private = (void *) intelScreen;
381 intelScreen->drmMinor = psp->drm_version.minor;
383 /* Determine chipset ID */
384 if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
385 &intelScreen->deviceID))
388 if (!intel_init_bufmgr(intelScreen))
391 intelScreen->irq_active = 1;
392 psp->extensions = intelScreenExtensions;
403 msaa_samples_array[0] = 0;
405 fb_format[0] = GL_RGB;
406 fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;
408 fb_format[1] = GL_BGR;
409 fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;
411 fb_format[2] = GL_BGRA;
412 fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
417 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
418 __DRIconfig **new_configs;
421 /* With DRI2 right now, GetBuffers always returns a depth/stencil buffer
422 * with the same cpp as the drawable. So we can't support depth cpp !=
423 * color cpp currently.
425 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
438 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
443 ARRAY_SIZE(back_buffer_modes),
445 ARRAY_SIZE(msaa_samples_array));
447 configs = new_configs;
449 configs = driConcatConfigs(configs, new_configs);
452 if (configs == NULL) {
453 fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
458 return (const __DRIconfig **)configs;
461 const struct __DriverAPIRec driDriverAPI = {
462 .DestroyScreen = intelDestroyScreen,
463 .CreateContext = intelCreateContext,
464 .DestroyContext = intelDestroyContext,
465 .CreateBuffer = intelCreateBuffer,
466 .DestroyBuffer = intelDestroyBuffer,
467 .MakeCurrent = intelMakeCurrent,
468 .UnbindContext = intelUnbindContext,
469 .InitScreen2 = intelInitScreen2,
472 /* This is the table of extensions that the loader will dlsym() for. */
473 PUBLIC const __DRIextension *__driDriverExtensions[] = {
474 &driCoreExtension.base,
475 &driDRI2Extension.base,