This just renames them so that they can be used with the DRI3 extension without causing too much confusion.

Signed-off-by: Keith Packard keithp@keithp.com --- src/mesa/drivers/dri/common/dri_util.c | 50 +++++++++++++++++----------------- 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c index c28b0fc..539fb4b 100644 --- a/src/mesa/drivers/dri/common/dri_util.c +++ b/src/mesa/drivers/dri/common/dri_util.c @@ -291,13 +291,13 @@ validate_context_version(__DRIscreen *screen, /*@{*/

static __DRIcontext * -dri2CreateContextAttribs(__DRIscreen *screen, int api, - const __DRIconfig *config, - __DRIcontext *shared, - unsigned num_attribs, - const uint32_t *attribs, - unsigned *error, - void *data) +driCreateContextAttribs(__DRIscreen *screen, int api, + const __DRIconfig *config, + __DRIcontext *shared, + unsigned num_attribs, + const uint32_t *attribs, + unsigned *error, + void *data) { __DRIcontext *context; const struct gl_config *modes = (config != NULL) ? &config->modes : NULL; @@ -442,22 +442,22 @@ dri2CreateContextAttribs(__DRIscreen *screen, int api, }

static __DRIcontext * -dri2CreateNewContextForAPI(__DRIscreen *screen, int api, - const __DRIconfig *config, - __DRIcontext *shared, void *data) +driCreateNewContextForAPI(__DRIscreen *screen, int api, + const __DRIconfig *config, + __DRIcontext *shared, void *data) { unsigned error;

- return dri2CreateContextAttribs(screen, api, config, shared, 0, NULL, - &error, data); + return driCreateContextAttribs(screen, api, config, shared, 0, NULL, + &error, data); }

static __DRIcontext * -dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config, - __DRIcontext *shared, void *data) +driCreateNewContext(__DRIscreen *screen, const __DRIconfig *config, + __DRIcontext *shared, void *data) { - return dri2CreateNewContextForAPI(screen, __DRI_API_OPENGL, - config, shared, data); + return driCreateNewContextForAPI(screen, __DRI_API_OPENGL, + config, shared, data); }

/** @@ -609,9 +609,9 @@ static void dri_put_drawable(__DRIdrawable *pdp) }

static __DRIdrawable * -dri2CreateNewDrawable(__DRIscreen *screen, - const __DRIconfig *config, - void *data) +driCreateNewDrawable(__DRIscreen *screen, + const __DRIconfig *config, + void *data) { __DRIdrawable *pdraw;

@@ -698,7 +698,7 @@ dri2ConfigQueryf(__DRIscreen *screen, const char *var, GLfloat *val) }

static unsigned int -dri2GetAPIMask(__DRIscreen *screen) +driGetAPIMask(__DRIscreen *screen) { return screen->api_mask; } @@ -741,13 +741,13 @@ const __DRIdri2Extension driDRI2Extension = { .base = { __DRI_DRI2, 4 },

.createNewScreen = dri2CreateNewScreen, - .createNewDrawable = dri2CreateNewDrawable, - .createNewContext = dri2CreateNewContext, - .getAPIMask = dri2GetAPIMask, - .createNewContextForAPI = dri2CreateNewContextForAPI, + .createNewDrawable = driCreateNewDrawable, + .createNewContext = driCreateNewContext, + .getAPIMask = driGetAPIMask, + .createNewContextForAPI = driCreateNewContextForAPI, .allocateBuffer = dri2AllocateBuffer, .releaseBuffer = dri2ReleaseBuffer, - .createContextAttribs = dri2CreateContextAttribs, + .createContextAttribs = driCreateContextAttribs .createNewScreen2 = dri2CreateNewScreen2, };

Make an easy place to splice in a DRI3 version of this function

Signed-off-by: Keith Packard keithp@keithp.com --- src/mesa/drivers/dri/i915/intel_context.c | 90 +++++++++++++++++-------------- src/mesa/drivers/dri/i965/brw_context.c | 22 ++++++-- 2 files changed, 68 insertions(+), 44 deletions(-)

diff --git a/src/mesa/drivers/dri/i915/intel_context.c b/src/mesa/drivers/dri/i915/intel_context.c index 2748514..1798bc7 100644 --- a/src/mesa/drivers/dri/i915/intel_context.c +++ b/src/mesa/drivers/dri/i915/intel_context.c @@ -133,15 +133,58 @@ intel_process_dri2_buffer(struct intel_context *intel, struct intel_renderbuffer *rb, const char *buffer_name);

-void -intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) +static void +intel_update_dri2_buffers(struct intel_context *intel, __DRIdrawable *drawable) { - struct gl_framebuffer *fb = drawable->driverPrivate; - struct intel_renderbuffer *rb; - struct intel_context *intel = context->driverPrivate; __DRIbuffer *buffers = NULL; int i, count; const char *region_name; + struct intel_renderbuffer *rb; + struct gl_framebuffer *fb = drawable->driverPrivate; + + intel_query_dri2_buffers(intel, drawable, &buffers, &count); + + if (buffers == NULL) + return; + + for (i = 0; i < count; i++) { + switch (buffers[i].attachment) { + case __DRI_BUFFER_FRONT_LEFT: + rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); + region_name = "dri2 front buffer"; + break; + + case __DRI_BUFFER_FAKE_FRONT_LEFT: + rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); + region_name = "dri2 fake front buffer"; + break; + + case __DRI_BUFFER_BACK_LEFT: + rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); + region_name = "dri2 back buffer"; + break; + + case __DRI_BUFFER_DEPTH: + case __DRI_BUFFER_HIZ: + case __DRI_BUFFER_DEPTH_STENCIL: + case __DRI_BUFFER_STENCIL: + case __DRI_BUFFER_ACCUM: + default: + fprintf(stderr, + "unhandled buffer attach event, attachment type %d\n", + buffers[i].attachment); + return; + } + + intel_process_dri2_buffer(intel, drawable, &buffers[i], rb, region_name); + } +} + +void +intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) +{ + struct intel_context *intel = context->driverPrivate; + __DRIscreen *screen = intel->intelScreen->driScrnPriv;

/* Set this up front, so that in case our buffers get invalidated * while we're getting new buffers, we don't clobber the stamp and @@ -151,42 +194,7 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) if (unlikely(INTEL_DEBUG & DEBUG_DRI)) fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);

- intel_query_dri2_buffers(intel, drawable, &buffers, &count); - - if (buffers == NULL) - return; - - for (i = 0; i < count; i++) { - switch (buffers[i].attachment) { - case __DRI_BUFFER_FRONT_LEFT: - rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); - region_name = "dri2 front buffer"; - break; - - case __DRI_BUFFER_FAKE_FRONT_LEFT: - rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); - region_name = "dri2 fake front buffer"; - break; - - case __DRI_BUFFER_BACK_LEFT: - rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); - region_name = "dri2 back buffer"; - break; - - case __DRI_BUFFER_DEPTH: - case __DRI_BUFFER_HIZ: - case __DRI_BUFFER_DEPTH_STENCIL: - case __DRI_BUFFER_STENCIL: - case __DRI_BUFFER_ACCUM: - default: - fprintf(stderr, - "unhandled buffer attach event, attachment type %d\n", - buffers[i].attachment); - return; - } - - intel_process_dri2_buffer(intel, drawable, &buffers[i], rb, region_name); - } + intel_update_dri2_buffers(intel, drawable);

driUpdateFramebufferSize(&intel->ctx, drawable); } diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c index 38147e9..c213b31 100644 --- a/src/mesa/drivers/dri/i965/brw_context.c +++ b/src/mesa/drivers/dri/i965/brw_context.c @@ -929,12 +929,11 @@ intel_process_dri2_buffer(struct brw_context *brw, struct intel_renderbuffer *rb, const char *buffer_name);

-void -intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) +static void +intel_update_dri2_buffers(struct brw_context *brw, __DRIdrawable *drawable) { struct gl_framebuffer *fb = drawable->driverPrivate; struct intel_renderbuffer *rb; - struct brw_context *brw = context->driverPrivate; __DRIbuffer *buffers = NULL; int i, count; const char *region_name; @@ -984,6 +983,23 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) intel_process_dri2_buffer(brw, drawable, &buffers[i], rb, region_name); }

+} + +void +intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) +{ + struct brw_context *brw = context->driverPrivate; + + /* Set this up front, so that in case our buffers get invalidated + * while we're getting new buffers, we don't clobber the stamp and + * thus ignore the invalidate. */ + drawable->lastStamp = drawable->dri2.stamp; + + if (unlikely(INTEL_DEBUG & DEBUG_DRI)) + fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable); + + intel_update_dri2_buffers(brw, drawable); + driUpdateFramebufferSize(&brw->ctx, drawable); }

Returns a prime file descriptor for the specified region.

Signed-off-by: Keith Packard keithp@keithp.com --- src/mesa/drivers/dri/i915/intel_regions.c | 13 +++++++++++++ src/mesa/drivers/dri/i915/intel_regions.h | 4 ++++ src/mesa/drivers/dri/i965/intel_regions.c | 13 +++++++++++++ src/mesa/drivers/dri/i965/intel_regions.h | 4 ++++ 4 files changed, 34 insertions(+)

diff --git a/src/mesa/drivers/dri/i915/intel_regions.c b/src/mesa/drivers/dri/i915/intel_regions.c index 9f5b89e..bac997d 100644 --- a/src/mesa/drivers/dri/i915/intel_regions.c +++ b/src/mesa/drivers/dri/i915/intel_regions.c @@ -238,6 +238,19 @@ intel_region_alloc_for_fd(struct intel_screen *screen, return region; }

+int +intel_fd_for_region(struct intel_screen *screen, + struct intel_region *region) +{ + int fd; + int ret; + + ret = drm_intel_bo_gem_export_to_prime(region->bo, &fd); + if (ret < 0) + return ret; + return fd; +} + void intel_region_reference(struct intel_region **dst, struct intel_region *src) { diff --git a/src/mesa/drivers/dri/i915/intel_regions.h b/src/mesa/drivers/dri/i915/intel_regions.h index 6bc4a42..84c013a 100644 --- a/src/mesa/drivers/dri/i915/intel_regions.h +++ b/src/mesa/drivers/dri/i915/intel_regions.h @@ -93,6 +93,10 @@ intel_region_alloc_for_fd(struct intel_screen *screen, GLuint width, GLuint height, GLuint pitch, GLuint size, int fd, const char *name);

+int +intel_fd_for_region(struct intel_screen *screen, + struct intel_region *region); + bool intel_region_flink(struct intel_region *region, uint32_t *name);

diff --git a/src/mesa/drivers/dri/i965/intel_regions.c b/src/mesa/drivers/dri/i965/intel_regions.c index 3920f4f..2e70326 100644 --- a/src/mesa/drivers/dri/i965/intel_regions.c +++ b/src/mesa/drivers/dri/i965/intel_regions.c @@ -238,6 +238,19 @@ intel_region_alloc_for_fd(struct intel_screen *screen, return region; }

+int +intel_fd_for_region(struct intel_screen *screen, + struct intel_region *region) +{ + int fd; + int ret; + + ret = drm_intel_bo_gem_export_to_prime(region->bo, &fd); + if (ret < 0) + return ret; + return fd; +} + void intel_region_reference(struct intel_region **dst, struct intel_region *src) { diff --git a/src/mesa/drivers/dri/i965/intel_regions.h b/src/mesa/drivers/dri/i965/intel_regions.h index 05dfef3..f471b94 100644 --- a/src/mesa/drivers/dri/i965/intel_regions.h +++ b/src/mesa/drivers/dri/i965/intel_regions.h @@ -95,6 +95,10 @@ intel_region_alloc_for_fd(struct intel_screen *screen, GLuint size, int fd, const char *name);

+int +intel_fd_for_region(struct intel_screen *screen, + struct intel_region *region); + bool intel_region_flink(struct intel_region *region, uint32_t *name);

This hooks DRI3 support into the GLX layer, the DRI common layer and the Intel driver.

Signed-off-by: Keith Packard keithp@keithp.com --- configure.ac | 10 +- include/GL/internal/dri_interface.h | 158 +++ src/glx/Makefile.am | 2 + src/glx/dri3_common.c | 146 +++ src/glx/dri3_glx.c | 1539 +++++++++++++++++++++++++ src/glx/dri3_priv.h | 128 ++ src/glx/glxclient.h | 2 + src/glx/glxext.c | 6 +- src/mesa/drivers/dri/common/dri_util.c | 163 ++- src/mesa/drivers/dri/common/dri_util.h | 23 + src/mesa/drivers/dri/i915/intel_context.c | 109 +- src/mesa/drivers/dri/i915/intel_mipmap_tree.c | 33 + src/mesa/drivers/dri/i915/intel_mipmap_tree.h | 8 + src/mesa/drivers/dri/i965/brw_context.c | 110 +- src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 61 + src/mesa/drivers/dri/i965/intel_mipmap_tree.h | 8 + src/mesa/drivers/dri/i965/intel_screen.c | 107 +- 17 files changed, 2594 insertions(+), 19 deletions(-) create mode 100644 src/glx/dri3_common.c create mode 100644 src/glx/dri3_glx.c create mode 100644 src/glx/dri3_priv.h

diff --git a/configure.ac b/configure.ac index f94c9b9..b6158d9 100644 --- a/configure.ac +++ b/configure.ac @@ -38,6 +38,8 @@ LIBDRM_NVVIEUX_REQUIRED=2.4.33 LIBDRM_NOUVEAU_REQUIRED="2.4.33 libdrm >= 2.4.41" LIBDRM_FREEDRENO_REQUIRED=2.4.39 DRI2PROTO_REQUIRED=2.6 +DRI3PROTO_REQUIRED=1.0 +LIBUDEV_REQUIRED=151 GLPROTO_REQUIRED=1.4.14 LIBDRM_XORG_REQUIRED=2.4.24 LIBKMS_XORG_REQUIRED=1.0.0 @@ -820,10 +822,12 @@ xyesno) fi PKG_CHECK_MODULES([DRI2PROTO], [dri2proto >= $DRI2PROTO_REQUIRED]) GL_PC_REQ_PRIV="$GL_PC_REQ_PRIV libdrm >= $LIBDRM_REQUIRED" + PKG_CHECK_MODULES([DRI3PROTO], [dri3proto >= $DRI3PROTO_REQUIRED]) + PKG_CHECK_MODULES([LIBUDEV], [libudev >= $LIBUDEV_REQUIRED]) fi

# find the DRI deps for libGL - dri_modules="x11 xext xdamage xfixes x11-xcb xcb-glx >= 1.8.1 xcb-dri2 >= 1.8" + dri_modules="x11 xext xdamage xfixes x11-xcb xcb-glx >= 1.8.1 xcb-dri2 >= 1.8 xcb-dri3 xcb-sync xshmfence"

# add xf86vidmode if available PKG_CHECK_MODULES([XF86VIDMODE], [xxf86vm], HAVE_XF86VIDMODE=yes, HAVE_XF86VIDMODE=no) @@ -833,8 +837,8 @@ xyesno)

PKG_CHECK_MODULES([DRIGL], [$dri_modules]) GL_PC_REQ_PRIV="$GL_PC_REQ_PRIV $dri_modules" - X11_INCLUDES="$X11_INCLUDES $DRIGL_CFLAGS" - GL_LIB_DEPS="$DRIGL_LIBS" + X11_INCLUDES="$X11_INCLUDES $DRIGL_CFLAGS $LIBUDEV_CFLAGS" + GL_LIB_DEPS="$DRIGL_LIBS $LIBUDEV_LIBS"

# need DRM libs, $PTHREAD_LIBS, etc. GL_LIB_DEPS="$GL_LIB_DEPS $LIBDRM_LIBS -lm $PTHREAD_LIBS $DLOPEN_LIBS" diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h index 48993b9..b06ad8d 100644 --- a/include/GL/internal/dri_interface.h +++ b/include/GL/internal/dri_interface.h @@ -86,6 +86,11 @@ typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension; typedef struct __DRI2flushExtensionRec __DRI2flushExtension; typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension;

+ +typedef struct __DRIdri3BufferRec __DRIdri3Buffer; +typedef struct __DRIdri3ExtensionRec __DRIdri3Extension; +typedef struct __DRIdri3LoaderExtensionRec __DRIdri3LoaderExtension; + /*@}*/

@@ -966,6 +971,159 @@ struct __DRIdri2ExtensionRec {

/** + * DRI3 Loader extension. + */ + +#define __DRI3_DRIVER_EXTENSIONS "__dri3DriverExtensions" + +enum __DRI3bufferType { + __DRI3_BUFFER_BACK = 0, + __DRI3_BUFFER_FRONT = 1 +}; + +struct __DRIdri3BufferRec { + unsigned int size; + unsigned int pitch; + unsigned int cpp; + unsigned int flags; + unsigned int width, height; + enum __DRI3bufferType buffer_type; + uint32_t pixmap; + uint32_t sync_fence; + int32_t *shm_fence; + void *driverPrivate; +}; + +#define __DRI_DRI3_LOADER "DRI_DRI3Loader" +#define __DRI_DRI3_LOADER_VERSION 1 + +struct __DRIdri3LoaderExtensionRec { + __DRIextension base; + + int (*getBuffers)(__DRIdrawable *driDrawable, + int *width, int *height, + unsigned int format, + void *loaderPrivate, + int need_front, + int need_back, + __DRIdri3Buffer **front, + __DRIdri3Buffer **back); + + /** + * Flush pending front-buffer rendering + * + * Any rendering that has been performed to the + * \c __DRI3_BUFFER_FAKE_FRONT_LEFT will be flushed to the + * \c __DRI3_BUFFER_FRONT_LEFT. + * + * \param driDrawable Drawable whose front-buffer is to be flushed + * \param loaderPrivate Loader's private data that was previously passed + * into __DRIdri2ExtensionRec::createNewDrawable + */ + void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate); +}; + +/** + * DRI3 extension. + */ + +struct gl_context; +struct dd_function_table; + +typedef __DRIscreen * +(*__DRIcreateNewScreen2)(int screen, int fd, + const __DRIextension **extensions, + const __DRIextension **driver_extensions, + const __DRIconfig ***driver_configs, + void *loaderPrivate); + +typedef __DRIdrawable * +(*__DRIcreateNewDrawable)(__DRIscreen *screen, + const __DRIconfig *config, + void *loaderPrivate); + +typedef __DRIcontext * +(*__DRIcreateNewContext)(__DRIscreen *screen, + const __DRIconfig *config, + __DRIcontext *shared, + void *loaderPrivate); + +typedef __DRIcontext * +(*__DRIcreateContextAttribs)(__DRIscreen *screen, + int api, + const __DRIconfig *config, + __DRIcontext *shared, + unsigned num_attribs, + const uint32_t *attribs, + unsigned *error, + void *loaderPrivate); + +typedef unsigned int +(*__DRIgetAPIMask)(__DRIscreen *screen); + +typedef __DRIdri3Buffer * +(*__DRIdri3AllocateBuffer)(__DRIscreen *screen, + unsigned int bpp, + int width, + int height); + +typedef void +(*__DRIdri3ReleaseBuffer)(__DRIscreen *screen, + __DRIdri3Buffer *buffer); + +typedef int +(*__DRIdri3BufferToFd)(__DRIscreen *screen, + __DRIdri3Buffer *buffer); + +typedef __DRIdri3Buffer * +(*__DRIdri3FdToBuffer)(__DRIscreen *screen, + int fd, unsigned int bpp, + int width, int height, int stride, + unsigned int size); + +typedef uint32_t * +(*__DRIdri3Stamp)(__DRIdrawable *drawable); + +#define __DRI_DRI3 "DRI_DRI3" +#define __DRI_DRI3_VERSION 1 + +struct __DRIdri3ExtensionRec { + __DRIextension base; + + /* Common DRI functions, shared with DRI2 */ + __DRIcreateNewScreen2 createNewScreen2; + __DRIcreateNewDrawable createNewDrawable; + __DRIcreateNewContext createNewContext; + __DRIcreateContextAttribs createContextAttribs; + __DRIgetAPIMask getAPIMask; + + /* DRI3-specific functions*/ + + /* Allocate color buffer for front/back of windows and pixmaps + */ + __DRIdri3AllocateBuffer allocateBuffer; + + /* Release color buffer + */ + __DRIdri3ReleaseBuffer releaseBuffer; + + /* Given a buffer, wrap it in a DMA-BUF file descriptor + */ + __DRIdri3BufferToFd bufferToFd; + + /* Given a DMA-BUF file descriptor, construct a suitable + * color buffer + */ + __DRIdri3FdToBuffer fdToBuffer; + + /* Ask the driver for a pointer to an integer which + * can be incremented when the drawable needs to be + * revalidated + */ + __DRIdri3Stamp stamp; +}; + +/** * This extension provides functionality to enable various EGLImage * extensions. */ diff --git a/src/glx/Makefile.am b/src/glx/Makefile.am index f01709b..854025d 100644 --- a/src/glx/Makefile.am +++ b/src/glx/Makefile.am @@ -92,6 +92,8 @@ libglx_la_SOURCES = \ glxhash.c \ dri2_glx.c \ dri2.c \ + dri3_glx.c \ + dri3_common.c \ applegl_glx.c

GL_LIBS = \ diff --git a/src/glx/dri3_common.c b/src/glx/dri3_common.c new file mode 100644 index 0000000..c758f96 --- /dev/null +++ b/src/glx/dri3_common.c @@ -0,0 +1,146 @@ +/* + * Copyright © 2013 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * This code is derived from src/egl/drivers/dri2/common.c which + * carries the following copyright: + * + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: + * Kristian Høgsberg krh@bitplanet.net + * Benjamin Franzke benjaminfranzke@googlemail.com + */ + +#include <stdio.h> +#include <string.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <GL/gl.h> +#include "glapi.h" +#include "glxclient.h" +#include "xf86dri.h" +#include <dlfcn.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/mman.h> +#include <sys/time.h> +#include "xf86drm.h" +#include "dri_common.h" +#include "dri3_priv.h" + +#define DRIVER_MAP_DRI3_ONLY +#include "pci_ids/pci_id_driver_map.h" + +#include <libudev.h> + +static struct udev_device * +dri3_udev_device_new_from_fd(struct udev *udev, int fd) +{ + struct udev_device *device; + struct stat buf; + + if (fstat(fd, &buf) < 0) { + ErrorMessageF("DRI3: failed to stat fd %d", fd); + return NULL; + } + + device = udev_device_new_from_devnum(udev, 'c', buf.st_rdev); + if (device == NULL) { + ErrorMessageF("DRI3: could not create udev device for fd %d", fd); + return NULL; + } + + return device; +} + +char * +dri3_get_driver_for_fd(int fd) +{ + struct udev *udev; + struct udev_device *device, *parent; + const char *pci_id; + char *driver = NULL; + int vendor_id, chip_id, i, j; + + udev = udev_new(); + device = dri3_udev_device_new_from_fd(udev, fd); + if (device == NULL) + return NULL; + + parent = udev_device_get_parent(device); + if (parent == NULL) { + ErrorMessageF("DRI3: could not get parent device"); + goto out; + } + + pci_id = udev_device_get_property_value(parent, "PCI_ID"); + if (pci_id == NULL || + sscanf(pci_id, "%x:%x", &vendor_id, &chip_id) != 2) { + ErrorMessageF("DRI3: malformed or no PCI ID"); + goto out; + } + + for (i = 0; driver_map[i].driver; i++) { + if (vendor_id != driver_map[i].vendor_id) + continue; + if (driver_map[i].num_chips_ids == -1) { + driver = strdup(driver_map[i].driver); + goto out; + } + + for (j = 0; j < driver_map[i].num_chips_ids; j++) + if (driver_map[i].chip_ids[j] == chip_id) { + driver = strdup(driver_map[i].driver); + goto out; + } + } + +out: + udev_device_unref(device); + udev_unref(udev); + + return driver; +} diff --git a/src/glx/dri3_glx.c b/src/glx/dri3_glx.c new file mode 100644 index 0000000..4d275f2 --- /dev/null +++ b/src/glx/dri3_glx.c @@ -0,0 +1,1539 @@ +/* + * Copyright © 2013 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * Portions of this code were adapted from dri2_glx.c which carries the + * following copyright: + * + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Soft- + * ware"), to deal in the Software without restriction, including without + * limitation the rights to use, copy, modify, merge, publish, distribute, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, provided that the above copyright + * notice(s) and this permission notice appear in all copies of the Soft- + * ware and that both the above copyright notice(s) and this permission + * notice appear in supporting documentation. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- + * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY + * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN + * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- + * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR- + * MANCE OF THIS SOFTWARE. + * + * Except as contained in this notice, the name of a copyright holder shall + * not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization of + * the copyright holder. + * + * Authors: + * Kristian Høgsberg (krh@redhat.com) + */ + +#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) + +#include <X11/Xlib.h> +#include <X11/extensions/Xfixes.h> +#include <X11/Xlib-xcb.h> +#include <X11/xshmfence.h> +#include <xcb/xcb.h> +#include <xcb/dri3.h> +#include <xcb/present.h> +#include <GL/gl.h> +#include "glapi.h" +#include "glxclient.h" +#include "xf86dri.h" +#include <dlfcn.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/mman.h> +#include <sys/time.h> +#include "xf86drm.h" +#include "dri_common.h" +#include "dri3_priv.h" + +static const struct glx_context_vtable dri3_context_vtable; + +#define HAS_SBC 0 + +#if HAS_SBC + +/* For XCB's handling of ust/msc/sbc counters, we have to hand it the high and + * low halves separately. This helps you split them. + */ +static void +split_counter(uint64_t counter, uint32_t *hi, uint32_t *lo) +{ + *hi = (counter >> 32); + *lo = counter & 0xffffffff; +} + +static uint64_t +merge_counter(uint32_t hi, uint32_t lo) +{ + return ((uint64_t)hi << 32) | lo; +} +#endif /* HAS_SBC */ + +static inline void +dri3_fence_reset(xcb_connection_t *c, __DRIdri3Buffer *buffer) { + xshmfence_reset(buffer->shm_fence); +} + +static inline void +dri3_fence_trigger(xcb_connection_t *c, __DRIdri3Buffer *buffer) { + xcb_sync_trigger_fence(c, buffer->sync_fence); +} + +static inline void +dri3_fence_await(xcb_connection_t *c, __DRIdri3Buffer *buffer) { + xcb_flush(c); + xshmfence_await(buffer->shm_fence); +} + +static void +dri3_destroy_context(struct glx_context *context) +{ + struct dri3_context *pcp = (struct dri3_context *) context; + struct dri3_screen *psc = (struct dri3_screen *) context->psc; + + driReleaseDrawables(&pcp->base); + + free((char *) context->extensions); + + (*psc->core->destroyContext) (pcp->driContext); + + free(pcp); +} + +static Bool +dri3_bind_context(struct glx_context *context, struct glx_context *old, + GLXDrawable draw, GLXDrawable read) +{ + struct dri3_context *pcp = (struct dri3_context *) context; + struct dri3_screen *psc = (struct dri3_screen *) pcp->base.psc; + struct dri3_drawable *pdraw, *pread; + + pdraw = (struct dri3_drawable *) driFetchDrawable(context, draw); + pread = (struct dri3_drawable *) driFetchDrawable(context, read); + + driReleaseDrawables(&pcp->base); + + if (pdraw == NULL || pread == NULL) + return GLXBadDrawable; + + if (!(*psc->core->bindContext) (pcp->driContext, + pdraw->driDrawable, pread->driDrawable)) + return GLXBadContext; + + return Success; +} + +static void +dri3_unbind_context(struct glx_context *context, struct glx_context *new) +{ + struct dri3_context *pcp = (struct dri3_context *) context; + struct dri3_screen *psc = (struct dri3_screen *) pcp->base.psc; + + (*psc->core->unbindContext) (pcp->driContext); +} + +static struct glx_context * +dri3_create_context(struct glx_screen *base, + struct glx_config *config_base, + struct glx_context *shareList, int renderType) +{ + struct dri3_context *pcp, *pcp_shared; + struct dri3_screen *psc = (struct dri3_screen *) base; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; + __DRIcontext *shared = NULL; + + if (shareList) { + /* If the shareList context is not a DRI3 context, we cannot possibly + * create a DRI3 context that shares it. + */ + if (shareList->vtable->destroy != dri3_destroy_context) { + return NULL; + } + + pcp_shared = (struct dri3_context *) shareList; + shared = pcp_shared->driContext; + } + + pcp = calloc(1, sizeof *pcp); + if (pcp == NULL) + return NULL; + + if (!glx_context_init(&pcp->base, &psc->base, &config->base)) { + free(pcp); + return NULL; + } + + pcp->driContext = + (*psc->dri3->createNewContext) (psc->driScreen, + config->driConfig, shared, pcp); + + if (pcp->driContext == NULL) { + free(pcp); + return NULL; + } + + pcp->base.vtable = &dri3_context_vtable; + + return &pcp->base; +} + +static struct glx_context * +dri3_create_context_attribs(struct glx_screen *base, + struct glx_config *config_base, + struct glx_context *shareList, + unsigned num_attribs, + const uint32_t *attribs, + unsigned *error) +{ + struct dri3_context *pcp = NULL; + struct dri3_context *pcp_shared = NULL; + struct dri3_screen *psc = (struct dri3_screen *) base; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; + __DRIcontext *shared = NULL; + + uint32_t minor_ver = 1; + uint32_t major_ver = 2; + uint32_t flags = 0; + unsigned api; + int reset = __DRI_CTX_RESET_NO_NOTIFICATION; + uint32_t ctx_attribs[2 * 5]; + unsigned num_ctx_attribs = 0; + uint32_t render_type; + + /* Remap the GLX tokens to DRI2 tokens. + */ + if (!dri2_convert_glx_attribs(num_attribs, attribs, + &major_ver, &minor_ver, + &render_type, &flags, &api, + &reset, error)) + goto error_exit; + + /* Check the renderType value */ + if (!validate_renderType_against_config(config_base, render_type)) + goto error_exit; + + if (shareList) { + pcp_shared = (struct dri3_context *) shareList; + shared = pcp_shared->driContext; + } + + pcp = calloc(1, sizeof *pcp); + if (pcp == NULL) { + *error = __DRI_CTX_ERROR_NO_MEMORY; + goto error_exit; + } + + if (!glx_context_init(&pcp->base, &psc->base, &config->base)) + goto error_exit; + + ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION; + ctx_attribs[num_ctx_attribs++] = major_ver; + ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION; + ctx_attribs[num_ctx_attribs++] = minor_ver; + + /* Only send a value when the non-default value is requested. By doing + * this we don't have to check the driver's DRI3 version before sending the + * default value. + */ + if (reset != __DRI_CTX_RESET_NO_NOTIFICATION) { + ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY; + ctx_attribs[num_ctx_attribs++] = reset; + } + + if (flags != 0) { + ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_FLAGS; + + /* The current __DRI_CTX_FLAG_* values are identical to the + * GLX_CONTEXT_*_BIT values. + */ + ctx_attribs[num_ctx_attribs++] = flags; + } + + pcp->driContext = + (*psc->dri3->createContextAttribs) (psc->driScreen, + api, + config->driConfig, + shared, + num_ctx_attribs / 2, + ctx_attribs, + error, + pcp); + + if (pcp->driContext == NULL) + goto error_exit; + + pcp->base.vtable = &dri3_context_vtable; + + return &pcp->base; + +error_exit: + free(pcp); + + return NULL; +} + +static void +dri3_destroy_drawable(__GLXDRIdrawable *base) +{ + struct dri3_screen *psc = (struct dri3_screen *) base->psc; + struct dri3_drawable *pdraw = (struct dri3_drawable *) base; + + (*psc->core->destroyDrawable) (pdraw->driDrawable); + + free(pdraw); +} + +static __GLXDRIdrawable * +dri3_create_drawable(struct glx_screen *base, XID xDrawable, + GLXDrawable drawable, struct glx_config *config_base) +{ + struct dri3_drawable *pdraw; + struct dri3_screen *psc = (struct dri3_screen *) base; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; + GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1; + + pdraw = calloc(1, sizeof(*pdraw)); + if (!pdraw) + return NULL; + + pdraw->base.destroyDrawable = dri3_destroy_drawable; + pdraw->base.xDrawable = xDrawable; + pdraw->base.drawable = drawable; + pdraw->base.psc = &psc->base; +// pdraw->bufferCount = 0; + pdraw->swap_interval = 1; /* default may be overridden below */ + pdraw->have_back = 0; + pdraw->have_fake_front = 0; + + if (psc->config) + psc->config->configQueryi(psc->driScreen, + "vblank_mode", &vblank_mode); + + switch (vblank_mode) { + case DRI_CONF_VBLANK_NEVER: + case DRI_CONF_VBLANK_DEF_INTERVAL_0: + pdraw->swap_interval = 0; + break; + case DRI_CONF_VBLANK_DEF_INTERVAL_1: + case DRI_CONF_VBLANK_ALWAYS_SYNC: + default: + pdraw->swap_interval = 1; + break; + } + + (void) __glXInitialize(psc->base.dpy); + + /* Create a new drawable */ + pdraw->driDrawable = + (*psc->dri3->createNewDrawable) (psc->driScreen, + config->driConfig, pdraw); + + if (!pdraw->driDrawable) { + free(pdraw); + return NULL; + } + + /* + * Make sure server has the same swap interval we do for the new + * drawable. + */ + if (psc->vtable.setSwapInterval) + psc->vtable.setSwapInterval(&pdraw->base, pdraw->swap_interval); + + return &pdraw->base; +} + +#if HAS_SBC +static int +dri3_drawable_get_msc(struct glx_screen *psc, __GLXDRIdrawable *pdraw, + int64_t *ust, int64_t *msc, int64_t *sbc) +{ + xcb_connection_t *c = XGetXCBConnection(pdraw->psc->dpy); + xcb_dri2_get_msc_cookie_t get_msc_cookie; + xcb_dri2_get_msc_reply_t *get_msc_reply; + + get_msc_cookie = xcb_dri2_get_msc_unchecked(c, pdraw->xDrawable); + get_msc_reply = xcb_dri2_get_msc_reply(c, get_msc_cookie, NULL); + + if (!get_msc_reply) + return 0; + + *ust = merge_counter(get_msc_reply->ust_hi, get_msc_reply->ust_lo); + *msc = merge_counter(get_msc_reply->msc_hi, get_msc_reply->msc_lo); + *sbc = merge_counter(get_msc_reply->sbc_hi, get_msc_reply->sbc_lo); + free(get_msc_reply); + + return 1; +} + +static int +dri3_wait_for_msc(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor, + int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc) +{ + xcb_connection_t *c = XGetXCBConnection(pdraw->psc->dpy); + xcb_dri2_wait_msc_cookie_t wait_msc_cookie; + xcb_dri2_wait_msc_reply_t *wait_msc_reply; + uint32_t target_msc_hi, target_msc_lo; + uint32_t divisor_hi, divisor_lo; + uint32_t remainder_hi, remainder_lo; + + split_counter(target_msc, &target_msc_hi, &target_msc_lo); + split_counter(divisor, &divisor_hi, &divisor_lo); + split_counter(remainder, &remainder_hi, &remainder_lo); + + wait_msc_cookie = xcb_dri2_wait_msc_unchecked(c, pdraw->xDrawable, + target_msc_hi, target_msc_lo, + divisor_hi, divisor_lo, + remainder_hi, remainder_lo); + wait_msc_reply = xcb_dri2_wait_msc_reply(c, wait_msc_cookie, NULL); + + if (!wait_msc_reply) + return 0; + + *ust = merge_counter(wait_msc_reply->ust_hi, wait_msc_reply->ust_lo); + *msc = merge_counter(wait_msc_reply->msc_hi, wait_msc_reply->msc_lo); + *sbc = merge_counter(wait_msc_reply->sbc_hi, wait_msc_reply->sbc_lo); + free(wait_msc_reply); + + return 1; +} + +static int +dri3_wait_for_sbc(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust, + int64_t *msc, int64_t *sbc) +{ + xcb_connection_t *c = XGetXCBConnection(pdraw->psc->dpy); + xcb_dri2_wait_sbc_cookie_t wait_sbc_cookie; + xcb_dri2_wait_sbc_reply_t *wait_sbc_reply; + uint32_t target_sbc_hi, target_sbc_lo; + + split_counter(target_sbc, &target_sbc_hi, &target_sbc_lo); + + wait_sbc_cookie = xcb_dri2_wait_sbc_unchecked(c, pdraw->xDrawable, + target_sbc_hi, target_sbc_lo); + wait_sbc_reply = xcb_dri2_wait_sbc_reply(c, wait_sbc_cookie, NULL); + + if (!wait_sbc_reply) + return 0; + + *ust = merge_counter(wait_sbc_reply->ust_hi, wait_sbc_reply->ust_lo); + *msc = merge_counter(wait_sbc_reply->msc_hi, wait_sbc_reply->msc_lo); + *sbc = merge_counter(wait_sbc_reply->sbc_hi, wait_sbc_reply->sbc_lo); + free(wait_sbc_reply); + + return 1; +} +#endif /* HAS_SBC */ + +static __DRIcontext * +dri3_get_current_context(void) +{ + struct glx_context *gc = __glXGetCurrentContext(); + struct dri3_context *dri3Ctx = (struct dri3_context *)gc; + + return dri3Ctx ? dri3Ctx->driContext : NULL; +} + +/** + * dri3Throttle - Request driver throttling + * + * This function uses the DRI2 throttle extension to give the + * driver the opportunity to throttle on flush front, copysubbuffer + * and swapbuffers. + */ +static void +dri3_throttle(struct dri3_screen *psc, + struct dri3_drawable *draw, + enum __DRI2throttleReason reason) +{ + if (psc->throttle) { + __DRIcontext *ctx = dri3_get_current_context(); + + psc->throttle->throttle(ctx, draw->driDrawable, reason); + } +} + +/** + * Asks the driver to flush any queued work necessary for serializing with the + * X command stream, and optionally the slightly more strict requirement of + * glFlush() equivalence (which would require flushing even if nothing had + * been drawn to a window system framebuffer, for example). + */ +static void +dri3_flush(struct dri3_screen *psc, + __DRIcontext *ctx, + struct dri3_drawable *draw, + unsigned flags, + enum __DRI2throttleReason throttle_reason) +{ + if (ctx && psc->f && psc->f->base.version >= 4) { + psc->f->flush_with_flags(ctx, draw->driDrawable, flags, throttle_reason); + } else { + if (flags & __DRI2_FLUSH_CONTEXT) + glFlush(); + + if (psc->f) + psc->f->flush(draw->driDrawable); + + dri3_throttle(psc, draw, throttle_reason); + } +} + +static xcb_gcontext_t +dri3_drawable_gc(struct dri3_drawable *priv) +{ + if (!priv->gc) { + uint32_t v; + xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); + + v = 0; + xcb_create_gc(c, + (priv->gc = xcb_generate_id(c)), + priv->base.xDrawable, + XCB_GC_GRAPHICS_EXPOSURES, + &v); + } + return priv->gc; +} + +static __DRIdri3Buffer * +dri3_back_buffer(struct dri3_drawable *priv) +{ + return priv->buffers[__DRI3_BUFFER_BACK]; +} + +static __DRIdri3Buffer * +dri3_fake_front_buffer(struct dri3_drawable *priv) +{ + return priv->buffers[__DRI3_BUFFER_FRONT]; +} + +static void +dri3_copy_area (xcb_connection_t *c /**< */, + xcb_drawable_t src_drawable /**< */, + xcb_drawable_t dst_drawable /**< */, + xcb_gcontext_t gc /**< */, + int16_t src_x /**< */, + int16_t src_y /**< */, + int16_t dst_x /**< */, + int16_t dst_y /**< */, + uint16_t width /**< */, + uint16_t height /**< */) +{ + xcb_void_cookie_t cookie; + + cookie = xcb_copy_area_checked(c, + src_drawable, + dst_drawable, + gc, + src_x, + src_y, + dst_x, + dst_y, + width, + height); + xcb_discard_reply(c, cookie.sequence); +} + +static void +_dri3_copy_sub_buffer(__GLXDRIdrawable *pdraw, int x, int y, + int width, int height, + enum __DRI2throttleReason reason, Bool flush) +{ + struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; + struct dri3_screen *psc = (struct dri3_screen *) pdraw->psc; + xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); + __DRIcontext *ctx = dri3_get_current_context(); + __DRIdri3Buffer *back = dri3_back_buffer(priv); + + unsigned flags; + + /* Check we have the right attachments */ + if (!priv->have_back || priv->is_pixmap) + return; + + flags = __DRI2_FLUSH_DRAWABLE; + if (flush) + flags |= __DRI2_FLUSH_CONTEXT; + dri3_flush(psc, ctx, priv, flags, __DRI2_THROTTLE_SWAPBUFFER); + + y = priv->height - y - height; + + dri3_fence_reset(c, back); + dri3_copy_area(c, + dri3_back_buffer(priv)->pixmap, + priv->base.xDrawable, + dri3_drawable_gc(priv), + x, y, x, y, width, height); + dri3_fence_trigger(c, back); + /* Refresh the fake front (if present) after we just damaged the real + * front. + */ + if (priv->have_fake_front) { + dri3_fence_reset(c, dri3_fake_front_buffer(priv)); + dri3_copy_area(c, + dri3_back_buffer(priv)->pixmap, + dri3_fake_front_buffer(priv)->pixmap, + dri3_drawable_gc(priv), + x, y, x, y, width, height); + dri3_fence_trigger(c, dri3_fake_front_buffer(priv)); + dri3_fence_await(c, dri3_fake_front_buffer(priv)); + } + dri3_fence_await(c, back); +} + +static void +dri3_copy_sub_buffer(__GLXDRIdrawable *pdraw, int x, int y, + int width, int height, Bool flush) +{ + _dri3_copy_sub_buffer(pdraw, x, y, width, height, + __DRI2_THROTTLE_COPYSUBBUFFER, flush); +} + + +static void +dri3_copy_drawable(struct dri3_drawable *priv, Drawable dest, Drawable src) +{ + struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; + xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); + + if (psc->f) + (*psc->f->flush) (priv->driDrawable); + + dri3_copy_area(c, + src, dest, + dri3_drawable_gc(priv), + 0, 0, 0, 0, priv->width, priv->height); +} + +static void +dri3_wait_x(struct glx_context *gc) +{ + struct dri3_drawable *priv = (struct dri3_drawable *) + GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); + + if (priv == NULL || !priv->have_fake_front) + return; + + dri3_copy_drawable(priv, dri3_fake_front_buffer(priv)->pixmap, priv->base.xDrawable); +} + +static void +dri3_wait_gl(struct glx_context *gc) +{ + struct dri3_drawable *priv = (struct dri3_drawable *) + GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); + + if (priv == NULL || !priv->have_fake_front) + return; + + dri3_copy_drawable(priv, priv->base.xDrawable, dri3_fake_front_buffer(priv)->pixmap); +} + +/** + * Called by the driver when it needs to update the real front buffer with the + * contents of its fake front buffer. + */ +static void +dri3_flush_front_buffer(__DRIdrawable *driDrawable, void *loaderPrivate) +{ + struct glx_context *gc; + struct dri3_drawable *pdraw = loaderPrivate; + struct dri3_screen *psc; + + if (!pdraw) + return; + + if (!pdraw->base.psc) + return; + + psc = (struct dri3_screen *) pdraw->base.psc; + + (void) __glXInitialize(psc->base.dpy); + + gc = __glXGetCurrentContext(); + + dri3_throttle(psc, pdraw, __DRI2_THROTTLE_FLUSHFRONT); + + dri3_wait_gl(gc); +} + +static __DRIdri3Buffer * +dri3_alloc_render_buffer(struct glx_screen *glx_screen, Drawable draw, unsigned int format, int width, int height, int depth) +{ + struct dri3_screen *psc = (struct dri3_screen *) glx_screen; + Display *dpy = glx_screen->dpy; + __DRIdri3Buffer *buffer; + xcb_connection_t *c = XGetXCBConnection(dpy); + xcb_pixmap_t pixmap; + xcb_sync_fence_t sync_fence; + int32_t *shm_fence; + int buffer_fd, fence_fd; + + fence_fd = xshmfence_alloc_shm(); + if (fence_fd < 0) + return NULL; + shm_fence = xshmfence_map_shm(fence_fd); + if (shm_fence == NULL) + goto no_shm_fence; + + buffer = (*psc->dri3->allocateBuffer) (psc->driScreen, + format, + width, + height); + if (buffer == NULL) + goto no_buffer; + + buffer_fd = (*psc->dri3->bufferToFd)(psc->driScreen, buffer); + if (buffer_fd < 0) + goto no_buffer_fd; + + xcb_dri3_pixmap_from_buffer(c, + (pixmap = xcb_generate_id(c)), + draw, + buffer->size, + width, height, buffer->pitch, + depth, buffer->cpp * 8, + buffer_fd); + + xcb_dri3_fence_from_fd(c, + pixmap, + (sync_fence = xcb_generate_id(c)), + false, + fence_fd); + + buffer->pixmap = pixmap; + buffer->sync_fence = sync_fence; + buffer->shm_fence = shm_fence; + buffer->width = width; + buffer->height = height; + return buffer; + +no_buffer_fd: + (*psc->dri3->releaseBuffer)(psc->driScreen, buffer); +no_buffer: + xshmfence_unmap_shm(shm_fence); +no_shm_fence: + close(fence_fd); + return NULL; +} + +static void +dri3_free_render_buffer(struct dri3_drawable *pdraw, __DRIdri3Buffer *buffer) +{ + struct dri3_screen *psc = (struct dri3_screen *) pdraw->base.psc; + xcb_connection_t *c = XGetXCBConnection(pdraw->base.psc->dpy); + + xcb_free_pixmap(c, buffer->pixmap); + xcb_sync_destroy_fence(c, buffer->sync_fence); + xshmfence_unmap_shm(buffer->shm_fence); + (*psc->dri3->releaseBuffer)(psc->driScreen, buffer); +} + +static int +dri3_update_drawable(__DRIdrawable *driDrawable, void *loaderPrivate) +{ + struct dri3_drawable *priv = loaderPrivate; + xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); + + /* First time through, go get the current drawable geometry + */ + if (priv->width == 0 || priv->height == 0 || priv->depth == 0) { + xcb_get_geometry_cookie_t geom_cookie; + xcb_get_geometry_reply_t *geom_reply; + struct dri3_screen *psc; + xcb_void_cookie_t cookie; + xcb_generic_error_t *error; + + cookie = xcb_present_select_input_checked(c, + (priv->eid = xcb_generate_id(c)), + priv->base.xDrawable, + XCB_PRESENT_EVENT_MASK_CONFIGURE_NOTIFY| + XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY); + + if (!priv->present_extension) { + priv->present_extension = xcb_get_extension_data(c, &xcb_present_id); + if (!priv->present_extension) + return false; + } + + psc = (struct dri3_screen *) priv->base.psc; + priv->special_event = xcb_register_for_special_event(c, + priv->present_extension->major_opcode, + priv->eid, + psc->dri3->stamp(driDrawable)); + + geom_cookie = xcb_get_geometry(c, priv->base.xDrawable); + + geom_reply = xcb_get_geometry_reply(c, geom_cookie, NULL); + + if (!geom_reply) + return false; + + priv->width = geom_reply->width; + priv->height = geom_reply->height; + priv->depth = geom_reply->depth; + priv->is_pixmap = false; + + free(geom_reply); + + error = xcb_request_check(c, cookie); + + if (error) { + if (error->error_code != BadWindow) { + free(error); + return false; + } + priv->is_pixmap = true; + xcb_unregister_for_special_event(c, priv->special_event); + priv->special_event = NULL; + } + } + + /* Check to see if any configuration changes have occurred + * since we were last invoked + */ + if (priv->special_event) { + xcb_generic_event_t *ev; + + while ((ev = xcb_check_for_special_event(c, priv->special_event)) != NULL) { + xcb_present_generic_event_t *pe = (void *) ev; + + switch (pe->evtype) { + case XCB_PRESENT_EVENT_CONFIGURE_NOTIFY: { + xcb_configure_notify_event_t *ce = (void *) ev; + + priv->width = ce->width; + priv->height = ce->height; + break; + } + case XCB_PRESENT_EVENT_IDLE_NOTIFY: + break; + } + free(ev); + } + } + return true; +} + +static __DRIdri3Buffer * +dri3_get_pixmap_buffer(__DRIdrawable *driDrawable, + unsigned int format, + enum __DRI3bufferType buffer_type, + void *loaderPrivate) +{ + struct dri3_drawable *pdraw = loaderPrivate; + __DRIdri3Buffer *buffer = pdraw->buffers[buffer_type]; + Pixmap pixmap; + xcb_dri3_buffer_from_pixmap_cookie_t bp_cookie; + xcb_dri3_buffer_from_pixmap_reply_t *bp_reply; + int *fds; + int buffer_fd; + Display *dpy; + struct dri3_screen *psc; + xcb_connection_t *c; + xcb_sync_fence_t sync_fence; + int32_t *shm_fence; + int fence_fd; + + if (buffer) + return buffer; + + pixmap = pdraw->base.xDrawable; + psc = (struct dri3_screen *) pdraw->base.psc; + dpy = psc->base.dpy; + c = XGetXCBConnection(dpy); + + fence_fd = xshmfence_alloc_shm(); + if (fence_fd < 0) + return NULL; + shm_fence = xshmfence_map_shm(fence_fd); + if (shm_fence == NULL) { + close (fence_fd); + return NULL; + } + + xcb_dri3_fence_from_fd(c, + pixmap, + (sync_fence = xcb_generate_id(c)), + false, + fence_fd); + + bp_cookie = xcb_dri3_buffer_from_pixmap(c, pixmap); + bp_reply = xcb_dri3_buffer_from_pixmap_reply(c, bp_cookie, NULL); + if (!bp_reply) + goto no_pixmap; + fds = xcb_dri3_buffer_from_pixmap_reply_fds(c, bp_reply); + buffer_fd = fds[0]; + buffer = (*psc->dri3->fdToBuffer)(psc->driScreen, + buffer_fd, + format, + bp_reply->width, + bp_reply->height, + bp_reply->stride, + bp_reply->size); + close(buffer_fd); + if (!buffer) + goto no_pixmap; + + buffer->pixmap = pixmap; + buffer->width = bp_reply->width; + buffer->height = bp_reply->height; + buffer->buffer_type = buffer_type; + buffer->shm_fence = shm_fence; + buffer->sync_fence = sync_fence; + + pdraw->buffers[buffer_type] = buffer; + return buffer; + +no_pixmap: + xcb_sync_destroy_fence(c, sync_fence); + xshmfence_unmap_shm(shm_fence); + return NULL; +} + +static __DRIdri3Buffer * +dri3_get_buffer(__DRIdrawable *driDrawable, + unsigned int format, + enum __DRI3bufferType buffer_type, + void *loaderPrivate) +{ + struct dri3_drawable *priv = loaderPrivate; + __DRIdri3Buffer *buffer = priv->buffers[buffer_type]; + + if (!buffer || buffer->width != priv->width || buffer->height != priv->height) { + xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); + __DRIdri3Buffer *new_buffer; + + /* Allocate the new buffers + */ + new_buffer = dri3_alloc_render_buffer(priv->base.psc, + priv->base.xDrawable, + format, priv->width, priv->height, priv->depth); + if (!new_buffer) + return NULL; + switch (buffer_type) { + case __DRI3_BUFFER_BACK: + if (buffer) { + dri3_fence_reset(c, new_buffer); + dri3_fence_await(c, buffer); + dri3_copy_area(c, + buffer->pixmap, + new_buffer->pixmap, + dri3_drawable_gc(priv), + 0, 0, 0, 0, priv->width, priv->height); + dri3_fence_trigger(c, new_buffer); + dri3_free_render_buffer(priv, buffer); + dri3_fence_await(c, new_buffer); + } + break; + case __DRI3_BUFFER_FRONT: + dri3_fence_reset(c, new_buffer); + dri3_copy_area(c, + priv->base.xDrawable, + new_buffer->pixmap, + dri3_drawable_gc(priv), + 0, 0, 0, 0, priv->width, priv->height); + dri3_fence_trigger(c, new_buffer); + dri3_fence_await(c, new_buffer); + break; + } + buffer = new_buffer; + buffer->buffer_type = buffer_type; + priv->buffers[buffer_type] = buffer; + } + + /* Return the requested buffer */ + return buffer; +} + +static void +dri3_free_buffer(__DRIdrawable *driDrawable, + enum __DRI3bufferType buffer_type, + void *loaderPrivate) +{ + struct dri3_drawable *priv = loaderPrivate; + __DRIdri3Buffer *buffer = priv->buffers[buffer_type]; + + if (buffer) { + dri3_free_render_buffer(priv, buffer); + priv->buffers[buffer_type] = NULL; + } +} + +static int +dri3_get_buffers(__DRIdrawable *driDrawable, + int *width, int *height, + unsigned int format, + void *loaderPrivate, + int need_front, + int need_back, + __DRIdri3Buffer **front, + __DRIdri3Buffer **back) +{ + struct dri3_drawable *priv = loaderPrivate; + + *front = NULL; + *back = NULL; + + if (!dri3_update_drawable(driDrawable, loaderPrivate)) + return false; + + if (priv->is_pixmap) + need_front = 1; + + if (need_front) { + if (priv->is_pixmap) + *front = dri3_get_pixmap_buffer(driDrawable, + format, + __DRI3_BUFFER_FRONT, + loaderPrivate); + else + *front = dri3_get_buffer(driDrawable, + format, + __DRI3_BUFFER_FRONT, + loaderPrivate); + + if (!*front) + return false; + priv->have_fake_front = !priv->is_pixmap; + } else { + dri3_free_buffer(driDrawable, __DRI3_BUFFER_FRONT, loaderPrivate); + priv->have_fake_front = 0; + } + + if (need_back) { + *back = dri3_get_buffer(driDrawable, + format, + __DRI3_BUFFER_BACK, + loaderPrivate); + if (!*back) + return false; + priv->have_back = 1; + } else { + dri3_free_buffer(driDrawable, __DRI3_BUFFER_BACK, loaderPrivate); + priv->have_back = 0; + } + + /* Report back current geometry */ + *width = priv->width; + *height = priv->height; + return true; +} + +static int64_t +dri3_swap_buffers(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor, + int64_t remainder, Bool flush) +{ + struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; + struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; + xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); + int64_t ret = 0; + + __DRIcontext *ctx = dri3_get_current_context(); + unsigned flags = __DRI2_FLUSH_DRAWABLE; + if (flush) + flags |= __DRI2_FLUSH_CONTEXT; + dri3_flush(psc, ctx, priv, flags, __DRI2_THROTTLE_SWAPBUFFER); + + if (priv->buffers[0] && !priv->is_pixmap) { + dri3_fence_reset(c, priv->buffers[0]); + dri3_copy_area(c, + priv->buffers[0]->pixmap, + priv->base.xDrawable, + dri3_drawable_gc(priv), + 0, 0, 0, 0, priv->width, priv->height); + dri3_fence_trigger(c, priv->buffers[0]); + if (priv->have_fake_front) { + dri3_fence_reset(c, priv->buffers[1]); + dri3_copy_area(c, + priv->buffers[0]->pixmap, + priv->buffers[1]->pixmap, + dri3_drawable_gc(priv), + 0, 0, 0, 0, priv->width, priv->height); + dri3_fence_trigger(c, priv->buffers[1]); + } + dri3_fence_await(c, priv->buffers[0]); + if (priv->have_fake_front) + dri3_fence_await(c, priv->buffers[1]); + } + + return ret; +} + +static int +dri3_query_version(Display *dpy, int *major, int *minor) +{ + xcb_dri3_query_version_cookie_t cookie; + xcb_dri3_query_version_reply_t *reply; + xcb_connection_t *c = XGetXCBConnection(dpy); + xcb_generic_error_t *error; + + cookie = xcb_dri3_query_version(c, + XCB_DRI3_MAJOR_VERSION, + XCB_DRI3_MINOR_VERSION); + reply = xcb_dri3_query_version_reply(c, cookie, &error); + if (!reply) { + if (error) { + free(error); + } + return 0; + } + *major = reply->major_version; + *minor = reply->minor_version; + free(reply); + return 1; +} + +static int +dri3_open(Display *dpy, + Window root, + CARD32 provider) +{ + xcb_dri3_open_cookie_t cookie; + xcb_dri3_open_reply_t *reply; + xcb_connection_t *c = XGetXCBConnection(dpy); + xcb_generic_error_t *error; + int fd; + + cookie = xcb_dri3_open(c, + root, + provider); + + reply = xcb_dri3_open_reply(c, cookie, &error); + if (!reply) + return -1; + + if (reply->nfd != 1) { + free(reply); + return -1; + } + + fd = xcb_dri3_open_reply_fds(c, reply)[0]; + fcntl(fd, F_SETFD, FD_CLOEXEC); + + return fd; +} + + +static void +dri3_destroy_screen(struct glx_screen *base) +{ + struct dri3_screen *psc = (struct dri3_screen *) base; + + /* Free the direct rendering per screen data */ + (*psc->core->destroyScreen) (psc->driScreen); + driDestroyConfigs(psc->driver_configs); + close(psc->fd); + free(psc); +} + +#if HAS_SBC +static int +dri3_set_swap_interval(__GLXDRIdrawable *pdraw, int interval) +{ + xcb_connection_t *c = XGetXCBConnection(pdraw->psc->dpy); + struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; + GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1; + struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; + + if (psc->config) + psc->config->configQueryi(psc->driScreen, + "vblank_mode", &vblank_mode); + + switch (vblank_mode) { + case DRI_CONF_VBLANK_NEVER: + if (interval != 0) + return GLX_BAD_VALUE; + break; + case DRI_CONF_VBLANK_ALWAYS_SYNC: + if (interval <= 0) + return GLX_BAD_VALUE; + break; + default: + break; + } + + xcb_dri2_swap_interval(c, priv->base.xDrawable, interval); + priv->swap_interval = interval; + + return 0; +} + +static int +dri3_get_swap_interval(__GLXDRIdrawable *pdraw) +{ + struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; + + return priv->swap_interval; +} +#endif + +static const __DRIdri3LoaderExtension dri3LoaderExtension = { + {__DRI_DRI3_LOADER, __DRI_DRI3_LOADER_VERSION}, + .getBuffers = dri3_get_buffers, + .flushFrontBuffer = dri3_flush_front_buffer, +}; + +static void +dri3_bind_tex_image(Display * dpy, + GLXDrawable drawable, + int buffer, const int *attrib_list) +{ + struct glx_context *gc = __glXGetCurrentContext(); + struct dri3_context *pcp = (struct dri3_context *) gc; + __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); + struct dri3_drawable *pdraw = (struct dri3_drawable *) base; + struct dri3_screen *psc; + + if (pdraw != NULL) { + psc = (struct dri3_screen *) base->psc; + + if (psc->f && + psc->f->base.version >= 3 && psc->f->invalidate) + psc->f->invalidate(pdraw->driDrawable); + + XSync(dpy, false); + if (psc->texBuffer->base.version >= 2 && + psc->texBuffer->setTexBuffer2 != NULL) { + (*psc->texBuffer->setTexBuffer2) (pcp->driContext, + pdraw->base.textureTarget, + pdraw->base.textureFormat, + pdraw->driDrawable); + } + else { + (*psc->texBuffer->setTexBuffer) (pcp->driContext, + pdraw->base.textureTarget, + pdraw->driDrawable); + } + } +} + +static void +dri3_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer) +{ +#if __DRI_TEX_BUFFER_VERSION >= 3 + struct glx_context *gc = __glXGetCurrentContext(); + struct dri3_context *pcp = (struct dri3_context *) gc; + __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); + struct glx_display *dpyPriv = __glXInitialize(dpy); + struct dri3_drawable *pdraw = (struct dri3_drawable *) base; + struct dri3_display *pdp = + (struct dri3_display *) dpyPriv->dri3Display; + struct dri3_screen *psc; + + if (pdraw != NULL) { + psc = (struct dri3_screen *) base->psc; + + if (psc->texBuffer->base.version >= 3 && + psc->texBuffer->releaseTexBuffer != NULL) { + (*psc->texBuffer->releaseTexBuffer) (pcp->driContext, + pdraw->base.textureTarget, + pdraw->driDrawable); + } + } +#endif +} + +static const struct glx_context_vtable dri3_context_vtable = { + dri3_destroy_context, + dri3_bind_context, + dri3_unbind_context, + dri3_wait_gl, + dri3_wait_x, + DRI_glXUseXFont, + dri3_bind_tex_image, + dri3_release_tex_image, + NULL, /* get_proc_address */ +}; + +static void +dri3_bind_extensions(struct dri3_screen *psc, struct glx_display * priv, + const char *driverName) +{ +// const struct dri3_display *const pdp = (struct dri3_display *) priv->dri3Display; + const __DRIextension **extensions; + unsigned mask; + int i; + + extensions = psc->core->getExtensions(psc->driScreen); + + __glXEnableDirectExtension(&psc->base, "GLX_SGI_video_sync"); + __glXEnableDirectExtension(&psc->base, "GLX_SGI_swap_control"); + __glXEnableDirectExtension(&psc->base, "GLX_MESA_swap_control"); + __glXEnableDirectExtension(&psc->base, "GLX_SGI_make_current_read"); + + /* + * GLX_INTEL_swap_event is broken on the server side, where it's + * currently unconditionally enabled. This completely breaks + * systems running on drivers which don't support that extension. + * There's no way to test for its presence on this side, so instead + * of disabling it unconditionally, just disable it for drivers + * which are known to not support it, or for DDX drivers supporting + * only an older (pre-ScheduleSwap) version of DRI2. + * + * This is a hack which is required until: + * http://lists.x.org/archives/xorg-devel/2013-February/035449.html + * is merged and updated xserver makes it's way into distros: + */ +// if (pdp->swapAvailable && strcmp(driverName, "vmwgfx") != 0) { +// __glXEnableDirectExtension(&psc->base, "GLX_INTEL_swap_event"); +// } + + mask = psc->dri3->getAPIMask(psc->driScreen); + + __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context"); + __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context_profile"); + + if ((mask & (1 << __DRI_API_GLES2)) != 0) + __glXEnableDirectExtension(&psc->base, + "GLX_EXT_create_context_es2_profile"); + + for (i = 0; extensions[i]; i++) { + if ((strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0)) { + psc->texBuffer = (__DRItexBufferExtension *) extensions[i]; + __glXEnableDirectExtension(&psc->base, "GLX_EXT_texture_from_pixmap"); + } + + if ((strcmp(extensions[i]->name, __DRI2_FLUSH) == 0)) { + psc->f = (__DRI2flushExtension *) extensions[i]; + /* internal driver extension, no GL extension exposed */ + } + + if ((strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0)) + psc->config = (__DRI2configQueryExtension *) extensions[i]; + + if (((strcmp(extensions[i]->name, __DRI2_THROTTLE) == 0))) + psc->throttle = (__DRI2throttleExtension *) extensions[i]; + + if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) + __glXEnableDirectExtension(&psc->base, + "GLX_ARB_create_context_robustness"); + } +} + +static const struct glx_screen_vtable dri3_screen_vtable = { + dri3_create_context, + dri3_create_context_attribs +}; + +static struct glx_screen * +dri3_create_screen(int screen, struct glx_display * priv) +{ + const __DRIconfig **driver_configs; + const __DRIextension **extensions; + const struct dri3_display *const pdp = (struct dri3_display *) + priv->dri3Display; + struct dri3_screen *psc; + __GLXDRIscreen *psp; + struct glx_config *configs = NULL, *visuals = NULL; + char *driverName, *deviceName, *tmp; + int i; + + psc = calloc(1, sizeof *psc); + if (psc == NULL) + return NULL; + + psc->fd = -1; + + if (!glx_screen_init(&psc->base, screen, priv)) { + free(psc); + return NULL; + } + + psc->fd = dri3_open(priv->dpy, RootWindow(priv->dpy, screen), None); + if (psc->fd < 0) { + glx_screen_cleanup(&psc->base); + free(psc); + InfoMessageF("screen %d does not appear to be DRI3 capable\n", screen); + return NULL; + } + deviceName = NULL; + + driverName = dri3_get_driver_for_fd(psc->fd); + if (!driverName) { + ErrorMessageF("No driver found\n"); + goto handle_error; + } + + psc->driver = driOpenDriver(driverName); + if (psc->driver == NULL) { + ErrorMessageF("driver pointer missing\n"); + goto handle_error; + } + + extensions = driGetDriverExtensions(psc->driver, driverName); + if (extensions == NULL) + goto handle_error; + + for (i = 0; extensions[i]; i++) { + if (strcmp(extensions[i]->name, __DRI_CORE) == 0) + psc->core = (__DRIcoreExtension *) extensions[i]; + if (strcmp(extensions[i]->name, __DRI_DRI3) == 0) + psc->dri3 = (__DRIdri3Extension *) extensions[i]; + } + + if (psc->core == NULL || psc->dri3 == NULL) { + ErrorMessageF("core dri or dri3 extension not found\n"); + goto handle_error; + } + + psc->driScreen = + psc->dri3->createNewScreen2(screen, psc->fd, + (const __DRIextension **) + &pdp->loader_extensions[0], + extensions, + &driver_configs, psc); + + if (psc->driScreen == NULL) { + ErrorMessageF("failed to create dri screen\n"); + goto handle_error; + } + + dri3_bind_extensions(psc, priv, driverName); + + configs = driConvertConfigs(psc->core, psc->base.configs, driver_configs); + visuals = driConvertConfigs(psc->core, psc->base.visuals, driver_configs); + + if (!configs || !visuals) + goto handle_error; + + glx_config_destroy_list(psc->base.configs); + psc->base.configs = configs; + glx_config_destroy_list(psc->base.visuals); + psc->base.visuals = visuals; + + psc->driver_configs = driver_configs; + + psc->base.vtable = &dri3_screen_vtable; + psp = &psc->vtable; + psc->base.driScreen = psp; + psp->destroyScreen = dri3_destroy_screen; + psp->createDrawable = dri3_create_drawable; + psp->swapBuffers = dri3_swap_buffers; + psp->getDrawableMSC = NULL; + psp->waitForMSC = NULL; + psp->waitForSBC = NULL; + psp->setSwapInterval = NULL; + psp->getSwapInterval = NULL; + +#if HAS_SBC + if (pdp->driMinor >= 2) { + psp->getDrawableMSC = dri3DrawableGetMSC; + psp->waitForMSC = dri3WaitForMSC; + psp->waitForSBC = dri3WaitForSBC; + psp->setSwapInterval = dri3SetSwapInterval; + psp->getSwapInterval = dri3GetSwapInterval; + __glXEnableDirectExtension(&psc->base, "GLX_OML_sync_control"); + } +#endif + + psp->copySubBuffer = dri3_copy_sub_buffer; + __glXEnableDirectExtension(&psc->base, "GLX_MESA_copy_sub_buffer"); + + free(driverName); + free(deviceName); + + tmp = getenv("LIBGL_SHOW_FPS"); + psc->show_fps = tmp && strcmp(tmp, "1") == 0; + + return &psc->base; + +handle_error: + CriticalErrorMessageF("failed to load driver: %s\n", driverName); + + if (configs) + glx_config_destroy_list(configs); + if (visuals) + glx_config_destroy_list(visuals); + if (psc->driScreen) + psc->core->destroyScreen(psc->driScreen); + psc->driScreen = NULL; + if (psc->fd >= 0) + close(psc->fd); + if (psc->driver) + dlclose(psc->driver); + + free(driverName); + free(deviceName); + glx_screen_cleanup(&psc->base); + free(psc); + + return NULL; +} + +/* Called from __glXFreeDisplayPrivate. + */ +static void +dri3_destroy_display(__GLXDRIdisplay * dpy) +{ + free(dpy); +} + +/* + * Allocate, initialize and return a __DRIdisplayPrivate object. + * This is called from __glXInitialize() when we are given a new + * display pointer. + */ +_X_HIDDEN __GLXDRIdisplay * +dri3_create_display(Display * dpy) +{ + struct dri3_display *pdp; + int i; + + pdp = malloc(sizeof *pdp); + if (pdp == NULL) + return NULL; + + if (!dri3_query_version(dpy, &pdp->dri3Major, &pdp->dri3Minor)) { + free(pdp); + return NULL; + } + + pdp->base.destroyDisplay = dri3_destroy_display; + pdp->base.createScreen = dri3_create_screen; + + i = 0; + + pdp->loader_extensions[i++] = &dri3LoaderExtension.base; + + pdp->loader_extensions[i++] = &systemTimeExtension.base; + + pdp->loader_extensions[i++] = NULL; + + return &pdp->base; +} + +#endif /* GLX_DIRECT_RENDERING */ diff --git a/src/glx/dri3_priv.h b/src/glx/dri3_priv.h new file mode 100644 index 0000000..8703b39 --- /dev/null +++ b/src/glx/dri3_priv.h @@ -0,0 +1,128 @@ +/* + * Copyright © 2013 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* This file was derived from dri2_priv.h which carries the following + * copyright: + * + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Soft- + * ware"), to deal in the Software without restriction, including without + * limitation the rights to use, copy, modify, merge, publish, distribute, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, provided that the above copyright + * notice(s) and this permission notice appear in all copies of the Soft- + * ware and that both the above copyright notice(s) and this permission + * notice appear in supporting documentation. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- + * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY + * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN + * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- + * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR- + * MANCE OF THIS SOFTWARE. + * + * Except as contained in this notice, the name of a copyright holder shall + * not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization of + * the copyright holder. + * + * Authors: + * Kristian Høgsberg (krh@redhat.com) + */ + +#include <xcb/xcb.h> +#include <xcb/dri3.h> +#include <xcb/sync.h> + +/* From xmlpool/options.h, user exposed so should be stable */ +#define DRI_CONF_VBLANK_NEVER 0 +#define DRI_CONF_VBLANK_DEF_INTERVAL_0 1 +#define DRI_CONF_VBLANK_DEF_INTERVAL_1 2 +#define DRI_CONF_VBLANK_ALWAYS_SYNC 3 + +struct dri3_display +{ + __GLXDRIdisplay base; + + const __DRIextension *loader_extensions[8]; + + /* DRI3 bits */ + int dri3Major; + int dri3Minor; +}; + +struct dri3_screen { + struct glx_screen base; + + __DRIscreen *driScreen; + __GLXDRIscreen vtable; + + const __DRIdri3Extension *dri3; + const __DRIcoreExtension *core; + const __DRI2flushExtension *f; + const __DRI2configQueryExtension *config; + const __DRItexBufferExtension *texBuffer; + const __DRI2throttleExtension *throttle; + const __DRIconfig **driver_configs; + + void *driver; + int fd; + + Bool show_fps; +}; + +struct dri3_context +{ + struct glx_context base; + __DRIcontext *driContext; +}; + +struct dri3_drawable +{ + __GLXDRIdrawable base; + __DRIdrawable *driDrawable; + int width, height; + int swap_interval; + uint8_t have_back; + uint8_t have_fake_front; + uint8_t is_pixmap; + + uint64_t previous_time; + unsigned frames; + + __DRIdri3Buffer *buffers[2]; + int depth; + + xcb_present_event_t eid; + xcb_gcontext_t gc; + const xcb_query_extension_reply_t *dri3_extension; + const xcb_query_extension_reply_t *present_extension; + xcb_special_event_t *special_event; +}; + +char * +dri3_get_driver_for_fd(int fd); diff --git a/src/glx/glxclient.h b/src/glx/glxclient.h index 81ae792..ec168aa 100644 --- a/src/glx/glxclient.h +++ b/src/glx/glxclient.h @@ -150,6 +150,7 @@ extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy); extern void dri2InvalidateBuffers(Display *dpy, XID drawable); extern unsigned dri2GetSwapEventType(Display *dpy, XID drawable);

+extern __GLXDRIdisplay *dri3_create_display(Display * dpy);

/* ** Functions to obtain driver configuration information from a direct @@ -582,6 +583,7 @@ struct glx_display __GLXDRIdisplay *driswDisplay; __GLXDRIdisplay *driDisplay; __GLXDRIdisplay *dri2Display; + __GLXDRIdisplay *dri3Display; #endif };

diff --git a/src/glx/glxext.c b/src/glx/glxext.c index bea1ccb..c6e4d9f 100644 --- a/src/glx/glxext.c +++ b/src/glx/glxext.c @@ -770,7 +770,9 @@ AllocAndFetchScreenConfigs(Display * dpy, struct glx_display * priv) for (i = 0; i < screens; i++, psc++) { psc = NULL; #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) - if (priv->dri2Display) + if (priv->dri3Display) + psc = (*priv->dri3Display->createScreen) (i, priv); + if (psc == NULL && priv->dri2Display) psc = (*priv->dri2Display->createScreen) (i, priv); if (psc == NULL && priv->driDisplay) psc = (*priv->driDisplay->createScreen) (i, priv); @@ -863,6 +865,8 @@ __glXInitialize(Display * dpy) ** (e.g., those called in AllocAndFetchScreenConfigs). */ if (glx_direct && glx_accel) { + if (!getenv("LIBGL_DRI3_DISABLE")) + dpyPriv->dri3Display = dri3_create_display(dpy); dpyPriv->dri2Display = dri2CreateDisplay(dpy); dpyPriv->driDisplay = driCreateDisplay(dpy); } diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c index 539fb4b..9b24e54 100644 --- a/src/mesa/drivers/dri/common/dri_util.c +++ b/src/mesa/drivers/dri/common/dri_util.c @@ -729,7 +729,7 @@ const __DRIcoreExtension driCoreExtension = { .createNewDrawable = NULL, .destroyDrawable = driDestroyDrawable, .swapBuffers = driSwapBuffers, /* swrast */ - .createNewContext = dri2CreateNewContext, /* swrast */ + .createNewContext = driCreateNewContext, /* swrast */ .copyContext = driCopyContext, .destroyContext = driDestroyContext, .bindContext = driBindContext, @@ -747,16 +747,16 @@ const __DRIdri2Extension driDRI2Extension = { .createNewContextForAPI = driCreateNewContextForAPI, .allocateBuffer = dri2AllocateBuffer, .releaseBuffer = dri2ReleaseBuffer, - .createContextAttribs = driCreateContextAttribs + .createContextAttribs = driCreateContextAttribs, .createNewScreen2 = dri2CreateNewScreen2, };

const __DRIswrastExtension driSWRastExtension = { { __DRI_SWRAST, 4 }, driSWRastCreateNewScreen, - dri2CreateNewDrawable, - dri2CreateNewContextForAPI, - dri2CreateContextAttribs, + driCreateNewDrawable, + driCreateNewContextForAPI, + driCreateContextAttribs, driSWRastCreateNewScreen2, };

@@ -792,3 +792,156 @@ driUpdateFramebufferSize(struct gl_context *ctx, const __DRIdrawable *dPriv) assert(fb->Height == dPriv->h); } } + +/* + * Copyright © 2013 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +uint32_t * +dri3DrawableStamp(__DRIdrawable *drawable) +{ + return &drawable->dri2.stamp; +} + +static __DRIdri3Buffer * +dri3AllocateBuffer(__DRIscreen *screen, unsigned int depth, int width, int height) +{ + return (*dri3DriverAPI.allocate_buffer) (screen, depth, width, height); +} + +static void +dri3ReleaseBuffer(__DRIscreen *screen, __DRIdri3Buffer *buffer) +{ + return (*dri3DriverAPI.release_buffer) (screen, buffer); +} + +static int +dri3BufferToFd(__DRIscreen *screen, __DRIdri3Buffer *buffer) +{ + return (*dri3DriverAPI.buffer_to_fd)(screen, buffer); +} + +static __DRIdri3Buffer * +dri3FdToBuffer(__DRIscreen *screen, int fd, unsigned int format, int width, int height, int stride, unsigned int size) +{ + return (*dri3DriverAPI.fd_to_buffer)(screen, fd, format, width, height, stride, size); +} + +static uint32_t * +dri3Stamp(__DRIdrawable *drawable) +{ + return (*dri3DriverAPI.stamp)(drawable); +} + +PUBLIC const char __dri3ConfigOptions[] = + DRI_CONF_BEGIN + DRI_CONF_SECTION_PERFORMANCE + DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_1) + DRI_CONF_SECTION_END + DRI_CONF_END; + +static __DRIscreen * +dri3CreateNewScreen2(int scrn, int fd, + const __DRIextension **extensions, + const __DRIextension **driver_extensions, + const __DRIconfig ***driver_configs, void *data) +{ + static const __DRIextension *emptyExtensionList[] = { NULL }; + __DRIscreen *psp; + drmVersionPtr version; + + psp = calloc(1, sizeof(*psp)); + if (!psp) + return NULL; + + /* By default, use the global driDriverAPI symbol (non-megadrivers). */ + psp->driver = globalDriverAPI; + + /* If the driver exposes its vtable through its extensions list + * (megadrivers), use that instead. + */ + if (driver_extensions) { + for (int i = 0; driver_extensions[i]; i++) { + if (strcmp(driver_extensions[i]->name, __DRI_DRIVER_VTABLE) == 0) { + psp->driver = + ((__DRIDriverVtableExtension *)driver_extensions[i])->vtable; + } + } + } + + setupLoaderExtensions(psp, extensions); + setup_dri3_loader_extensions(psp, extensions); + + version = drmGetVersion(fd); + if (version) { + psp->drm_version.major = version->version_major; + psp->drm_version.minor = version->version_minor; + psp->drm_version.patch = version->version_patchlevel; + drmFreeVersion(version); + } + + psp->loaderPrivate = data; + + psp->extensions = emptyExtensionList; + psp->fd = fd; + psp->myNum = scrn; + + psp->api_mask = (1 << __DRI_API_OPENGL); + + *driver_configs = psp->driver->InitScreen(psp); + if (*driver_configs == NULL) { + free(psp); + return NULL; + } + + driParseOptionInfo(&psp->optionInfo, __dri3ConfigOptions); + driParseConfigFiles(&psp->optionCache, &psp->optionInfo, psp->myNum, "dri3"); + + return psp; +} + +void +setup_dri3_loader_extensions(__DRIscreen *psp, + const __DRIextension *const*extensions) +{ + int i; + + for (i = 0; extensions[i]; i++) { + if (strcmp(extensions[i]->name, __DRI_DRI3_LOADER) == 0) + psp->dri3.loader = (__DRIdri3LoaderExtension *) extensions[i]; + } +} + +/** DRI3 interface */ +const __DRIdri3Extension driDRI3Extension = { + .base = { __DRI_DRI3, 1 }, + + .createNewScreen2 = dri3CreateNewScreen2, + .createNewDrawable = driCreateNewDrawable, + .createNewContext = driCreateNewContext, + .getAPIMask = driGetAPIMask, + .createContextAttribs = driCreateContextAttribs, + .allocateBuffer = dri3AllocateBuffer, + .releaseBuffer = dri3ReleaseBuffer, + .bufferToFd = dri3BufferToFd, + .fdToBuffer = dri3FdToBuffer, + .stamp = dri3Stamp, +}; diff --git a/src/mesa/drivers/dri/common/dri_util.h b/src/mesa/drivers/dri/common/dri_util.h index 5b56061..9e96282 100644 --- a/src/mesa/drivers/dri/common/dri_util.h +++ b/src/mesa/drivers/dri/common/dri_util.h @@ -174,6 +174,10 @@ struct __DRIscreenRec { __DRIuseInvalidateExtension *useInvalidate; } dri2;

+ struct { + __DRIdri3LoaderExtension *loader; + } dri3; + driOptionCache optionInfo; driOptionCache optionCache;

@@ -277,4 +281,23 @@ dri2InvalidateDrawable(__DRIdrawable *drawable); extern void driUpdateFramebufferSize(struct gl_context *ctx, const __DRIdrawable *dPriv);

+uint32_t * +dri3DrawableStamp(__DRIdrawable *drawable); + +void +setup_dri3_loader_extensions(__DRIscreen *psp, + const __DRIextension *const*extensions); + +struct __dri3DriverAPIRec { + __DRIdri3AllocateBuffer allocate_buffer; + __DRIdri3ReleaseBuffer release_buffer; + __DRIdri3BufferToFd buffer_to_fd; + __DRIdri3FdToBuffer fd_to_buffer; + __DRIdri3Stamp stamp; +}; + +extern const struct __dri3DriverAPIRec dri3DriverAPI; + +extern const __DRIdri3Extension driDRI3Extension; + #endif /* _DRI_UTIL_H_ */ diff --git a/src/mesa/drivers/dri/i915/intel_context.c b/src/mesa/drivers/dri/i915/intel_context.c index 1798bc7..b99ff09 100644 --- a/src/mesa/drivers/dri/i915/intel_context.c +++ b/src/mesa/drivers/dri/i915/intel_context.c @@ -91,6 +91,8 @@ intelGetString(struct gl_context * ctx, GLenum name) } }

+#define flushFront(screen) ((screen)->dri3.loader ? (screen)->dri3.loader->flushFrontBuffer : (screen)->dri2.loader->flushFrontBuffer) + static void intel_flush_front(struct gl_context *ctx) { @@ -100,11 +102,10 @@ intel_flush_front(struct gl_context *ctx) __DRIscreen *const screen = intel->intelScreen->driScrnPriv;

if (intel->front_buffer_dirty && _mesa_is_winsys_fbo(ctx->DrawBuffer)) { - if (screen->dri2.loader->flushFrontBuffer != NULL && + if (flushFront(screen) && driDrawable && driDrawable->loaderPrivate) { - screen->dri2.loader->flushFrontBuffer(driDrawable, - driDrawable->loaderPrivate); + flushFront(screen)(driDrawable, driDrawable->loaderPrivate);

/* We set the dirty bit in intel_prepare_render() if we're * front buffer rendering once we get there. @@ -114,6 +115,9 @@ intel_flush_front(struct gl_context *ctx) } }

+static void +intel_update_dri3_buffers(struct intel_context *intel, __DRIdrawable *drawable); + static unsigned intel_bits_per_pixel(const struct intel_renderbuffer *rb) { @@ -194,7 +198,10 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) if (unlikely(INTEL_DEBUG & DEBUG_DRI)) fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);

- intel_update_dri2_buffers(intel, drawable); + if (screen->dri3.loader) + intel_update_dri3_buffers(intel, drawable); + else + intel_update_dri2_buffers(intel, drawable);

driUpdateFramebufferSize(&intel->ctx, drawable); } @@ -787,3 +794,97 @@ intel_process_dri2_buffer(struct intel_context *intel, region); intel_region_release(&region); } + +/** + * \brief Query DRI3 to obtain a DRIdrawable's buffers. + * + * To determine which DRI buffers to request, examine the renderbuffers + * attached to the drawable's framebuffer. Then request the buffers with + * dri3 + * + * This is called from intel_update_renderbuffers(). + * + * \param drawable Drawable whose buffers are queried. + * \param buffers [out] List of buffers returned by DRI2 query. + * \param buffer_count [out] Number of buffers returned. + * + * \see intel_update_renderbuffers() + */ + +static void +intel_update_dri3_buffer(struct intel_context *intel, + __DRIdrawable *drawable, + struct intel_renderbuffer *rb, + __DRIdri3Buffer *buffer) +{ + struct intel_region *region = buffer->driverPrivate; + + if (!rb || !region) + return; + + unsigned num_samples = rb->Base.Base.NumSamples; + + if (rb->mt && + rb->mt->region && + rb->mt->region == region) + return; + + intel_miptree_release(&rb->mt); + rb->mt = intel_miptree_create_for_dri3_buffer(intel, + buffer->buffer_type, + intel_rb_format(rb), + num_samples, + region); +} + + +static void +intel_update_dri3_buffers(struct intel_context *intel, __DRIdrawable *drawable) +{ + struct gl_framebuffer *fb = drawable->driverPrivate; + __DRIscreen *screen = intel->intelScreen->driScrnPriv; + struct intel_renderbuffer *front_rb; + struct intel_renderbuffer *back_rb; + int need_front = 0, need_back = 0; + __DRIdri3Buffer *front, *back; + unsigned int format; + + front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); + back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); + + if (back_rb) + format = intel_rb_format(back_rb); + else if (front_rb) + format = intel_rb_format(front_rb); + else + return; + + if ((intel->is_front_buffer_rendering || intel->is_front_buffer_reading || !back_rb) && front_rb) + need_front = 1; + + if (back_rb) + need_back = 1; + + (*screen->dri3.loader->getBuffers) (drawable, + &drawable->w, + &drawable->h, + format, + drawable->loaderPrivate, + need_front, + need_back, + &front, + &back); + + if (front) { + assert(front_rb); + intel_update_dri3_buffer(intel, + drawable, + front_rb, + front); + } + if (back) + intel_update_dri3_buffer(intel, + drawable, + back_rb, + back); +} diff --git a/src/mesa/drivers/dri/i915/intel_mipmap_tree.c b/src/mesa/drivers/dri/i915/intel_mipmap_tree.c index 8432b6d..97dcf80 100644 --- a/src/mesa/drivers/dri/i915/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/i915/intel_mipmap_tree.c @@ -322,6 +322,39 @@ intel_miptree_create_for_dri2_buffer(struct intel_context *intel, return mt; }

+/** + * For a singlesample DRI3 buffer, this simply wraps the given region with a miptree. + * + * For a multisample DRI3 buffer, this wraps the given region with + * a singlesample miptree, then creates a multisample miptree into which the + * singlesample miptree is embedded as a child. + */ +struct intel_mipmap_tree* +intel_miptree_create_for_dri3_buffer(struct intel_context *intel, + enum __DRI3bufferType buffer_type, + gl_format format, + uint32_t num_samples, + struct intel_region *region) +{ + struct intel_mipmap_tree *mt = NULL; + + /* Only the front and back buffers, which are color buffers, are allocated + * through DRI3. + */ + assert(_mesa_get_format_base_format(format) == GL_RGB || + _mesa_get_format_base_format(format) == GL_RGBA); + + mt = intel_miptree_create_for_bo(intel, + region->bo, + format, + 0, + region->width, + region->height, + region->pitch, + region->tiling); + return mt; +} + struct intel_mipmap_tree* intel_miptree_create_for_renderbuffer(struct intel_context *intel, gl_format format, diff --git a/src/mesa/drivers/dri/i915/intel_mipmap_tree.h b/src/mesa/drivers/dri/i915/intel_mipmap_tree.h index 1142af6..299ae99 100644 --- a/src/mesa/drivers/dri/i915/intel_mipmap_tree.h +++ b/src/mesa/drivers/dri/i915/intel_mipmap_tree.h @@ -32,6 +32,7 @@

#include "intel_screen.h" #include "intel_regions.h" +#include "GL/internal/dri_interface.h"

#ifdef __cplusplus extern "C" { @@ -258,6 +259,13 @@ intel_miptree_create_for_dri2_buffer(struct intel_context *intel, gl_format format, struct intel_region *region);

+struct intel_mipmap_tree* +intel_miptree_create_for_dri3_buffer(struct intel_context *intel, + enum __DRI3bufferType buffer_type, + gl_format format, + uint32_t num_samples, + struct intel_region *region); + /** * Create a miptree appropriate as the storage for a non-texture renderbuffer. * The miptree has the following properties: diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c index c213b31..ecf5bd7 100644 --- a/src/mesa/drivers/dri/i965/brw_context.c +++ b/src/mesa/drivers/dri/i965/brw_context.c @@ -151,6 +151,8 @@ intelInvalidateState(struct gl_context * ctx, GLuint new_state) brw->NewGLState |= new_state; }

+#define flushFront(screen) ((screen)->dri3.loader ? (screen)->dri3.loader->flushFrontBuffer : (screen)->dri2.loader->flushFrontBuffer) + static void intel_flush_front(struct gl_context *ctx) { @@ -160,8 +162,7 @@ intel_flush_front(struct gl_context *ctx) __DRIscreen *const screen = brw->intelScreen->driScrnPriv;

if (brw->front_buffer_dirty && _mesa_is_winsys_fbo(ctx->DrawBuffer)) { - if (screen->dri2.loader->flushFrontBuffer != NULL && - driDrawable && + if (flushFront(screen) && driDrawable && driDrawable->loaderPrivate) {

/* Resolve before flushing FAKE_FRONT_LEFT to FRONT_LEFT. @@ -174,8 +175,7 @@ intel_flush_front(struct gl_context *ctx) intel_resolve_for_dri2_flush(brw, driDrawable); intel_batchbuffer_flush(brw);

- screen->dri2.loader->flushFrontBuffer(driDrawable, - driDrawable->loaderPrivate); + flushFront(screen)(driDrawable, driDrawable->loaderPrivate);

/* We set the dirty bit in intel_prepare_render() if we're * front buffer rendering once we get there. @@ -930,6 +930,9 @@ intel_process_dri2_buffer(struct brw_context *brw, const char *buffer_name);

static void +intel_update_dri3_buffers(struct brw_context *brw, __DRIdrawable *drawable); + +static void intel_update_dri2_buffers(struct brw_context *brw, __DRIdrawable *drawable) { struct gl_framebuffer *fb = drawable->driverPrivate; @@ -989,6 +992,7 @@ void intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) { struct brw_context *brw = context->driverPrivate; + __DRIscreen *screen = brw->intelScreen->driScrnPriv;

/* Set this up front, so that in case our buffers get invalidated * while we're getting new buffers, we don't clobber the stamp and @@ -998,7 +1002,10 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) if (unlikely(INTEL_DEBUG & DEBUG_DRI)) fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);

- intel_update_dri2_buffers(brw, drawable); + if (screen->dri3.loader) + intel_update_dri3_buffers(brw, drawable); + else + intel_update_dri2_buffers(brw, drawable);

driUpdateFramebufferSize(&brw->ctx, drawable); } @@ -1204,3 +1211,96 @@ intel_process_dri2_buffer(struct brw_context *brw, region); intel_region_release(&region); } + +/** + * \brief Query DRI3 to obtain a DRIdrawable's buffers. + * + * To determine which DRI buffers to request, examine the renderbuffers + * attached to the drawable's framebuffer. Then request the buffers with + * dri3 + * + * This is called from intel_update_renderbuffers(). + * + * \param drawable Drawable whose buffers are queried. + * \param buffers [out] List of buffers returned by DRI2 query. + * \param buffer_count [out] Number of buffers returned. + * + * \see intel_update_renderbuffers() + */ + +static void +intel_update_dri3_buffer(struct brw_context *intel, + __DRIdrawable *drawable, + struct intel_renderbuffer *rb, + __DRIdri3Buffer *buffer) +{ + struct intel_region *region = buffer->driverPrivate; + + if (!rb || !region) + return; + + unsigned num_samples = rb->Base.Base.NumSamples; + + if (rb->mt && + rb->mt->region && + rb->mt->region == region) + return; + + intel_miptree_release(&rb->mt); + rb->mt = intel_miptree_create_for_dri3_buffer(intel, + buffer->buffer_type, + intel_rb_format(rb), + num_samples, + region); +} + +static void +intel_update_dri3_buffers(struct brw_context *brw, __DRIdrawable *drawable) +{ + struct gl_framebuffer *fb = drawable->driverPrivate; + __DRIscreen *screen = brw->intelScreen->driScrnPriv; + struct intel_renderbuffer *front_rb; + struct intel_renderbuffer *back_rb; + int need_front = 0, need_back = 0; + __DRIdri3Buffer *front, *back; + unsigned int format; + + front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); + back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); + + if (back_rb) + format = intel_rb_format(back_rb); + else if (front_rb) + format = intel_rb_format(front_rb); + else + return; + + if ((brw->is_front_buffer_rendering || brw->is_front_buffer_reading || !back_rb) && front_rb) + need_front = 1; + + if (back_rb) + need_back = 1; + + (*screen->dri3.loader->getBuffers) (drawable, + &drawable->w, + &drawable->h, + format, + drawable->loaderPrivate, + need_front, + need_back, + &front, + &back); + + if (front) { + assert(front_rb); + intel_update_dri3_buffer(brw, + drawable, + front_rb, + front); + } + if (back) + intel_update_dri3_buffer(brw, + drawable, + back_rb, + back); +} diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c index 2f5e04f..5c62a74 100644 --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c @@ -725,6 +725,67 @@ intel_miptree_create_for_dri2_buffer(struct brw_context *brw, return multisample_mt; }

+/** + * For a singlesample DRI3 buffer, this simply wraps the given region with a miptree. + * + * For a multisample DRI3 buffer, this wraps the given region with + * a singlesample miptree, then creates a multisample miptree into which the + * singlesample miptree is embedded as a child. + */ +struct intel_mipmap_tree* +intel_miptree_create_for_dri3_buffer(struct brw_context *intel, + enum __DRI3bufferType buffer_type, + gl_format format, + uint32_t num_samples, + struct intel_region *region) +{ + struct intel_mipmap_tree *singlesample_mt = NULL; + struct intel_mipmap_tree *multisample_mt = NULL; + + /* Only the front and back buffers, which are color buffers, are allocated + * through DRI3. + */ + assert(_mesa_get_format_base_format(format) == GL_RGB || + _mesa_get_format_base_format(format) == GL_RGBA); + + singlesample_mt = intel_miptree_create_for_bo(intel, + region->bo, + format, + 0, + region->width, + region->height, + region->pitch, + region->tiling); + if (!singlesample_mt) + return NULL; + + intel_region_reference(&singlesample_mt->region, region); + + if (num_samples == 0) + return singlesample_mt; + + multisample_mt = intel_miptree_create_for_renderbuffer(intel, + format, + region->width, + region->height, + num_samples); + if (!multisample_mt) { + intel_miptree_release(&singlesample_mt); + return NULL; + } + + multisample_mt->singlesample_mt = singlesample_mt; + multisample_mt->need_downsample = false; + + intel_region_reference(&multisample_mt->region, region); + + if (intel->is_front_buffer_rendering && buffer_type == __DRI3_BUFFER_FRONT) { + intel_miptree_upsample(intel, multisample_mt); + } + + return multisample_mt; +} + struct intel_mipmap_tree* intel_miptree_create_for_renderbuffer(struct brw_context *brw, gl_format format, diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h index d718125..0c1922d 100644 --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h @@ -32,6 +32,7 @@

#include "intel_regions.h" #include "intel_resolve_map.h" +#include <GL/internal/dri_interface.h>

#ifdef __cplusplus extern "C" { @@ -529,6 +530,13 @@ intel_miptree_create_for_dri2_buffer(struct brw_context *brw, uint32_t num_samples, struct intel_region *region);

+struct intel_mipmap_tree* +intel_miptree_create_for_dri3_buffer(struct brw_context *intel, + enum __DRI3bufferType buffer_type, + gl_format format, + uint32_t num_samples, + struct intel_region *region); + /** * Create a miptree appropriate as the storage for a non-texture renderbuffer. * The miptree has the following properties: diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c index 0bd0789..b975142 100644 --- a/src/mesa/drivers/dri/i965/intel_screen.c +++ b/src/mesa/drivers/dri/i965/intel_screen.c @@ -1225,7 +1225,8 @@ __DRIconfig **intelInitScreen2(__DRIscreen *psp) { struct intel_screen *intelScreen;

- if (psp->dri2.loader->base.version <= 2 || + if (psp->dri3.loader) { + } else if (psp->dri2.loader->base.version <= 2 || psp->dri2.loader->getBuffersWithFormat == NULL) { fprintf(stderr, "\nERROR! DRI2 loader with getBuffersWithFormat() " @@ -1313,6 +1314,109 @@ intelReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer) free(intelBuffer); }

+/* + * DRI3 bits + */ + +static __DRIdri3Buffer * +intel_dri3_allocate_buffer(__DRIscreen *screen, + unsigned int format, + int width, + int height) +{ + struct intel_screen *intel_screen = screen->driverPrivate; + __DRIdri3Buffer *buffer; + struct intel_region *region; + + buffer = calloc(1, sizeof *buffer); + if (buffer == NULL) + return NULL; + + /* The front and back buffers are color buffers, which are X tiled. */ + region = intel_region_alloc(intel_screen, + I915_TILING_X, + _mesa_get_format_bytes(format), + width, + height, + true); + + if (region == NULL) { + free(buffer); + return NULL; + } + + buffer->cpp = region->cpp; + buffer->pitch = region->pitch; + buffer->size = region->bo->size; + buffer->width = width; + buffer->height = height; + buffer->driverPrivate = region; + + return buffer; +} + +static void +intel_dri3_release_buffer(__DRIscreen *screen, + __DRIdri3Buffer *buffer) +{ + intel_region_release((struct intel_region **) &buffer->driverPrivate); + free(buffer); +} + +static int +intel_dri3_buffer_to_fd(__DRIscreen *screen, + __DRIdri3Buffer *buffer) +{ + struct intel_screen *intel_screen = screen->driverPrivate; + struct intel_region *region = buffer->driverPrivate; + + if (!region) + return -1; + return intel_fd_for_region(intel_screen, region); +} + +static __DRIdri3Buffer * +intel_dri3_fd_to_buffer(__DRIscreen *screen, + int fd, + unsigned int format, + int width, + int height, + int pitch, + unsigned int size) +{ + struct intel_screen *intel_screen = screen->driverPrivate; + struct intel_region *region; + __DRIdri3Buffer *buffer; + + buffer = calloc(1, sizeof *buffer); + if (!buffer) + return NULL; + + region = intel_region_alloc_for_fd(intel_screen, + _mesa_get_format_bytes(format), + width, height, pitch, size, + fd, "buffer"); + if (region == NULL) { + free (buffer); + return NULL; + } + + buffer->cpp = region->cpp; + buffer->pitch = region->pitch; + buffer->width = width; + buffer->height = height; + buffer->driverPrivate = region; + + return buffer; +} + +const struct __dri3DriverAPIRec dri3DriverAPI = { + .allocate_buffer = intel_dri3_allocate_buffer, + .release_buffer = intel_dri3_release_buffer, + .buffer_to_fd = intel_dri3_buffer_to_fd, + .fd_to_buffer = intel_dri3_fd_to_buffer, + .stamp = dri3DrawableStamp, +};

static const struct __DriverAPIRec brw_driver_api = { .InitScreen = intelInitScreen2, @@ -1334,6 +1438,7 @@ static const struct __DRIDriverVtableExtensionRec brw_vtable = {

static const __DRIextension *brw_driver_extensions[] = { &driCoreExtension.base, + &driDRI3Extension.base, &driDRI2Extension.base, &brw_vtable.base, &brw_config_options.base,