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3029801216
xserver-multidpi/glx/glxdri2.c
Dave Airlie 3029801216 dri2: add initial prime support. (v1.2) 
This adds the initial prime support for dri2 offload. The main thing is
when we get a connection from a prime client, we stored the information
and mark all drawables from that client as prime. We then create all
buffers for that drawable on the prime device dri2screen.

Then DRI2UpdatePrime is provided which drivers can call to get a shared
pixmap which they can use as the front buffer. The driver is then
responsible for doing the back->front copy to the shared buffer.

prime requires a compositing manager be run, but it handles the case where
a window get un-redirected by allocating a new pixmap and pointing the crtc
at it while the client is in that state.

Currently prime can't handle pageflipping, so always does straight copy swap,

v1.1: renumber on top of master.
v1.2: fix auth on top of master.

Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-07-07 10:39:10 +01:00

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/*
* Copyright © 2007 Red Hat, Inc
*
* 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 Red Hat,
* Inc not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL RED HAT, INC 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <dlfcn.h>
#include <drm.h>
#include <GL/gl.h>
#include <GL/internal/dri_interface.h>
#include <GL/glxtokens.h>
#include <windowstr.h>
#include <os.h>
#define _XF86DRI_SERVER_
#include <xf86drm.h>
#include <xf86.h>
#include <dri2.h>
#include "glxserver.h"
#include "glxutil.h"
#include "glxdricommon.h"
#include <GL/glxtokens.h>
#include "glapitable.h"
#include "glapi.h"
#include "glthread.h"
#include "dispatch.h"
#include "extension_string.h"
typedef struct __GLXDRIscreen __GLXDRIscreen;
typedef struct __GLXDRIcontext __GLXDRIcontext;
typedef struct __GLXDRIdrawable __GLXDRIdrawable;
#ifdef __DRI2_ROBUSTNESS
#define ALL_DRI_CTX_FLAGS (__DRI_CTX_FLAG_DEBUG \
| __DRI_CTX_FLAG_FORWARD_COMPATIBLE \
| __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS)
#else
#define ALL_DRI_CTX_FLAGS (__DRI_CTX_FLAG_DEBUG \
| __DRI_CTX_FLAG_FORWARD_COMPATIBLE)
#endif
struct __GLXDRIscreen {
__GLXscreen base;
__DRIscreen *driScreen;
void *driver;
int fd;
xf86EnterVTProc *enterVT;
xf86LeaveVTProc *leaveVT;
const __DRIcoreExtension *core;
const __DRIdri2Extension *dri2;
const __DRI2flushExtension *flush;
const __DRIcopySubBufferExtension *copySubBuffer;
const __DRIswapControlExtension *swapControl;
const __DRItexBufferExtension *texBuffer;
const __DRIconfig **driConfigs;
unsigned char glx_enable_bits[__GLX_EXT_BYTES];
};
struct __GLXDRIcontext {
__GLXcontext base;
__DRIcontext *driContext;
};
#define MAX_DRAWABLE_BUFFERS 5
struct __GLXDRIdrawable {
__GLXdrawable base;
__DRIdrawable *driDrawable;
__GLXDRIscreen *screen;
/* Dimensions as last reported by DRI2GetBuffers. */
int width;
int height;
__DRIbuffer buffers[MAX_DRAWABLE_BUFFERS];
int count;
};
static void
__glXDRIdrawableDestroy(__GLXdrawable * drawable)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
const __DRIcoreExtension *core = private->screen->core;
(*core->destroyDrawable) (private->driDrawable);
__glXDrawableRelease(drawable);
free(private);
}
static void
__glXDRIdrawableCopySubBuffer(__GLXdrawable * drawable,
int x, int y, int w, int h)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
BoxRec box;
RegionRec region;
box.x1 = x;
box.y1 = private->height - y - h;
box.x2 = x + w;
box.y2 = private->height - y;
RegionInit(&region, &box, 0);
DRI2CopyRegion(drawable->pDraw, &region,
DRI2BufferFrontLeft, DRI2BufferBackLeft);
}
static void
__glXDRIdrawableWaitX(__GLXdrawable * drawable)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
BoxRec box;
RegionRec region;
box.x1 = 0;
box.y1 = 0;
box.x2 = private->width;
box.y2 = private->height;
RegionInit(&region, &box, 0);
DRI2CopyRegion(drawable->pDraw, &region,
DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft);
}
static void
__glXDRIdrawableWaitGL(__GLXdrawable * drawable)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
BoxRec box;
RegionRec region;
box.x1 = 0;
box.y1 = 0;
box.x2 = private->width;
box.y2 = private->height;
RegionInit(&region, &box, 0);
DRI2CopyRegion(drawable->pDraw, &region,
DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft);
}
static void
__glXdriSwapEvent(ClientPtr client, void *data, int type, CARD64 ust,
CARD64 msc, CARD32 sbc)
{
__GLXdrawable *drawable = data;
xGLXBufferSwapComplete2 wire;
if (!(drawable->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK))
return;
wire.type = __glXEventBase + GLX_BufferSwapComplete;
switch (type) {
case DRI2_EXCHANGE_COMPLETE:
wire.event_type = GLX_EXCHANGE_COMPLETE_INTEL;
break;
case DRI2_BLIT_COMPLETE:
wire.event_type = GLX_BLIT_COMPLETE_INTEL;
break;
case DRI2_FLIP_COMPLETE:
wire.event_type = GLX_FLIP_COMPLETE_INTEL;
break;
default:
/* unknown swap completion type */
wire.event_type = 0;
break;
}
wire.drawable = drawable->drawId;
wire.ust_hi = ust >> 32;
wire.ust_lo = ust & 0xffffffff;
wire.msc_hi = msc >> 32;
wire.msc_lo = msc & 0xffffffff;
wire.sbc = sbc;
WriteEventsToClient(client, 1, (xEvent *) &wire);
}
/*
* Copy or flip back to front, honoring the swap interval if possible.
*
* If the kernel supports it, we request an event for the frame when the
* swap should happen, then perform the copy when we receive it.
*/
static GLboolean
__glXDRIdrawableSwapBuffers(ClientPtr client, __GLXdrawable * drawable)
{
__GLXDRIdrawable *priv = (__GLXDRIdrawable *) drawable;
__GLXDRIscreen *screen = priv->screen;
CARD64 unused;
#if __DRI2_FLUSH_VERSION >= 3
if (screen->flush) {
(*screen->flush->flush) (priv->driDrawable);
(*screen->flush->invalidate) (priv->driDrawable);
}
#else
if (screen->flush)
(*screen->flush->flushInvalidate) (priv->driDrawable);
#endif
if (DRI2SwapBuffers(client, drawable->pDraw, 0, 0, 0, &unused,
__glXdriSwapEvent, drawable) != Success)
return FALSE;
return TRUE;
}
static int
__glXDRIdrawableSwapInterval(__GLXdrawable * drawable, int interval)
{
if (interval <= 0) /* || interval > BIGNUM? */
return GLX_BAD_VALUE;
DRI2SwapInterval(drawable->pDraw, interval);
return 0;
}
static void
__glXDRIcontextDestroy(__GLXcontext * baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
__GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
(*screen->core->destroyContext) (context->driContext);
__glXContextDestroy(&context->base);
free(context);
}
static int
__glXDRIcontextMakeCurrent(__GLXcontext * baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
__GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
__GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
__GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
return (*screen->core->bindContext) (context->driContext,
draw->driDrawable, read->driDrawable);
}
static int
__glXDRIcontextLoseCurrent(__GLXcontext * baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
__GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
return (*screen->core->unbindContext) (context->driContext);
}
static int
__glXDRIcontextCopy(__GLXcontext * baseDst, __GLXcontext * baseSrc,
unsigned long mask)
{
__GLXDRIcontext *dst = (__GLXDRIcontext *) baseDst;
__GLXDRIcontext *src = (__GLXDRIcontext *) baseSrc;
__GLXDRIscreen *screen = (__GLXDRIscreen *) dst->base.pGlxScreen;
return (*screen->core->copyContext) (dst->driContext,
src->driContext, mask);
}
static Bool
__glXDRIcontextWait(__GLXcontext * baseContext,
__GLXclientState * cl, int *error)
{
if (DRI2WaitSwap(cl->client, baseContext->drawPriv->pDraw)) {
*error = cl->client->noClientException;
return TRUE;
}
return FALSE;
}
#ifdef __DRI_TEX_BUFFER
static int
__glXDRIbindTexImage(__GLXcontext * baseContext,
int buffer, __GLXdrawable * glxPixmap)
{
__GLXDRIdrawable *drawable = (__GLXDRIdrawable *) glxPixmap;
const __DRItexBufferExtension *texBuffer = drawable->screen->texBuffer;
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
if (texBuffer == NULL)
return Success;
#if __DRI_TEX_BUFFER_VERSION >= 2
if (texBuffer->base.version >= 2 && texBuffer->setTexBuffer2 != NULL) {
(*texBuffer->setTexBuffer2) (context->driContext,
glxPixmap->target,
glxPixmap->format, drawable->driDrawable);
}
else
#endif
{
texBuffer->setTexBuffer(context->driContext,
glxPixmap->target, drawable->driDrawable);
}
return Success;
}
static int
__glXDRIreleaseTexImage(__GLXcontext * baseContext,
int buffer, __GLXdrawable * pixmap)
{
/* FIXME: Just unbind the texture? */
return Success;
}
#else
static int
__glXDRIbindTexImage(__GLXcontext * baseContext,
int buffer, __GLXdrawable * glxPixmap)
{
return Success;
}
static int
__glXDRIreleaseTexImage(__GLXcontext * baseContext,
int buffer, __GLXdrawable * pixmap)
{
return Success;
}
#endif
static __GLXtextureFromPixmap __glXDRItextureFromPixmap = {
__glXDRIbindTexImage,
__glXDRIreleaseTexImage
};
static void
__glXDRIscreenDestroy(__GLXscreen * baseScreen)
{
int i;
__GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
(*screen->core->destroyScreen) (screen->driScreen);
dlclose(screen->driver);
__glXScreenDestroy(baseScreen);
if (screen->driConfigs) {
for (i = 0; screen->driConfigs[i] != NULL; i++)
free((__DRIconfig **) screen->driConfigs[i]);
free(screen->driConfigs);
}
free(screen);
}
static Bool
dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
unsigned *major_ver, unsigned *minor_ver,
uint32_t *flags, int *api, int *reset, unsigned *error)
{
unsigned i;
if (num_attribs == 0)
return True;
if (attribs == NULL) {
*error = BadImplementation;
return False;
}
*major_ver = 1;
*minor_ver = 0;
#ifdef __DRI2_ROBUSTNESS
*reset = __DRI_CTX_RESET_NO_NOTIFICATION;
#else
(void) reset;
#endif
for (i = 0; i < num_attribs; i++) {
switch (attribs[i * 2]) {
case GLX_CONTEXT_MAJOR_VERSION_ARB:
*major_ver = attribs[i * 2 + 1];
break;
case GLX_CONTEXT_MINOR_VERSION_ARB:
*minor_ver = attribs[i * 2 + 1];
break;
case GLX_CONTEXT_FLAGS_ARB:
*flags = attribs[i * 2 + 1];
break;
case GLX_RENDER_TYPE:
break;
case GLX_CONTEXT_PROFILE_MASK_ARB:
switch (attribs[i * 2 + 1]) {
case GLX_CONTEXT_CORE_PROFILE_BIT_ARB:
*api = __DRI_API_OPENGL_CORE;
break;
case GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB:
*api = __DRI_API_OPENGL;
break;
case GLX_CONTEXT_ES2_PROFILE_BIT_EXT:
*api = __DRI_API_GLES2;
break;
default:
*error = __glXError(GLXBadProfileARB);
return False;
}
break;
#ifdef __DRI2_ROBUSTNESS
case GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB:
if (screen->dri2->base.version >= 4) {
*error = BadValue;
return False;
}
switch (attribs[i * 2 + 1]) {
case GLX_NO_RESET_NOTIFICATION_ARB:
*reset = __DRI_CTX_RESET_NO_NOTIFICATION;
break;
case GLX_LOSE_CONTEXT_ON_RESET_ARB:
*reset = __DRI_CTX_RESET_LOSE_CONTEXT;
break;
default:
*error = BadValue;
return False;
}
break;
#endif
default:
/* If an unknown attribute is received, fail.
*/
*error = BadValue;
return False;
}
}
/* Unknown flag value.
*/
if ((*flags & ~ALL_DRI_CTX_FLAGS) != 0) {
*error = BadValue;
return False;
}
/* If the core profile is requested for a GL version is less than 3.2,
* request the non-core profile from the DRI driver. The core profile
* only makes sense for GL versions >= 3.2, and many DRI drivers that
* don't support OpenGL 3.2 may fail the request for a core profile.
*/
if (*api == __DRI_API_OPENGL_CORE
&& (*major_ver < 3 || (*major_ver < 3 && *minor_ver < 2))) {
*api == __DRI_API_OPENGL;
}
*error = Success;
return True;
}
static void
create_driver_context(__GLXDRIcontext * context,
__GLXDRIscreen * screen,
__GLXDRIconfig * config,
__DRIcontext * driShare,
unsigned num_attribs,
const uint32_t *attribs,
int *error)
{
context->driContext = NULL;
#if __DRI_DRI2_VERSION >= 3
if (screen->dri2->base.version >= 3) {
uint32_t ctx_attribs[3 * 2];
unsigned num_ctx_attribs = 0;
unsigned dri_err = 0;
unsigned major_ver;
unsigned minor_ver;
uint32_t flags;
int reset;
int api;
if (num_attribs != 0) {
if (!dri2_convert_glx_attribs(num_attribs, attribs,
&major_ver, &minor_ver,
&flags, &api, &reset,
(unsigned *) error))
return NULL;
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;
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;
}
#ifdef __DRI2_ROBUSTNESS
if (reset != __DRI_CTX_NO_RESET_NOTIFICATION) {
ctx_attribs[num_ctx_attribs++] =
__DRI_CTX_ATTRIB_RESET_NOTIFICATION;
ctx_attribs[num_ctx_attribs++] = reset;
}
#endif
}
context->driContext =
(*screen->dri2->createContextAttribs)(screen->driScreen,
api,
config->driConfig,
driShare,
num_ctx_attribs / 2,
ctx_attribs,
&dri_err,
context);
switch (dri_err) {
case __DRI_CTX_ERROR_SUCCESS:
*error = Success;
break;
case __DRI_CTX_ERROR_NO_MEMORY:
*error = BadAlloc;
break;
case __DRI_CTX_ERROR_BAD_API:
*error = __glXError(GLXBadProfileARB);
break;
case __DRI_CTX_ERROR_BAD_VERSION:
case __DRI_CTX_ERROR_BAD_FLAG:
*error = __glXError(GLXBadFBConfig);
break;
case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
case __DRI_CTX_ERROR_UNKNOWN_FLAG:
default:
*error = BadValue;
break;
}
return;
}
#endif
if (num_attribs != 0) {
*error = BadValue;
return;
}
context->driContext =
(*screen->dri2->createNewContext) (screen->driScreen,
config->driConfig,
driShare, context);
}
static __GLXcontext *
__glXDRIscreenCreateContext(__GLXscreen * baseScreen,
__GLXconfig * glxConfig,
__GLXcontext * baseShareContext,
unsigned num_attribs,
const uint32_t *attribs,
int *error)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
__GLXDRIcontext *context, *shareContext;
__GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig;
__DRIcontext *driShare;
shareContext = (__GLXDRIcontext *) baseShareContext;
if (shareContext)
driShare = shareContext->driContext;
else
driShare = NULL;
context = calloc(1, sizeof *context);
if (context == NULL) {
*error = BadAlloc;
return NULL;
}
context->base.destroy = __glXDRIcontextDestroy;
context->base.makeCurrent = __glXDRIcontextMakeCurrent;
context->base.loseCurrent = __glXDRIcontextLoseCurrent;
context->base.copy = __glXDRIcontextCopy;
context->base.textureFromPixmap = &__glXDRItextureFromPixmap;
context->base.wait = __glXDRIcontextWait;
create_driver_context(context, screen, config, driShare, num_attribs,
attribs, error);
if (context->driContext == NULL) {
free(context);
return NULL;
}
return &context->base;
}
static void
__glXDRIinvalidateBuffers(DrawablePtr pDraw, void *priv, XID id)
{
#if __DRI2_FLUSH_VERSION >= 3
__GLXDRIdrawable *private = priv;
__GLXDRIscreen *screen = private->screen;
if (screen->flush)
(*screen->flush->invalidate) (private->driDrawable);
#endif
}
static __GLXdrawable *
__glXDRIscreenCreateDrawable(ClientPtr client,
__GLXscreen * screen,
DrawablePtr pDraw,
XID drawId,
int type, XID glxDrawId, __GLXconfig * glxConfig)
{
__GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
__GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig;
__GLXDRIdrawable *private;
private = calloc(1, sizeof *private);
if (private == NULL)
return NULL;
private->screen = driScreen;
if (!__glXDrawableInit(&private->base, screen,
pDraw, type, glxDrawId, glxConfig)) {
free(private);
return NULL;
}
private->base.destroy = __glXDRIdrawableDestroy;
private->base.swapBuffers = __glXDRIdrawableSwapBuffers;
private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer;
private->base.waitGL = __glXDRIdrawableWaitGL;
private->base.waitX = __glXDRIdrawableWaitX;
if (DRI2CreateDrawable(client, pDraw, drawId,
__glXDRIinvalidateBuffers, private)) {
free(private);
return NULL;
}
private->driDrawable =
(*driScreen->dri2->createNewDrawable) (driScreen->driScreen,
config->driConfig, private);
return &private->base;
}
static __DRIbuffer *
dri2GetBuffers(__DRIdrawable * driDrawable,
int *width, int *height,
unsigned int *attachments, int count,
int *out_count, void *loaderPrivate)
{
__GLXDRIdrawable *private = loaderPrivate;
DRI2BufferPtr *buffers;
int i;
int j;
buffers = DRI2GetBuffers(private->base.pDraw,
width, height, attachments, count, out_count);
if (*out_count > MAX_DRAWABLE_BUFFERS) {
*out_count = 0;
return NULL;
}
private->width = *width;
private->height = *height;
/* This assumes the DRI2 buffer attachment tokens matches the
* __DRIbuffer tokens. */
j = 0;
for (i = 0; i < *out_count; i++) {
/* Do not send the real front buffer of a window to the client.
*/
if ((private->base.pDraw->type == DRAWABLE_WINDOW)
&& (buffers[i]->attachment == DRI2BufferFrontLeft)) {
continue;
}
private->buffers[j].attachment = buffers[i]->attachment;
private->buffers[j].name = buffers[i]->name;
private->buffers[j].pitch = buffers[i]->pitch;
private->buffers[j].cpp = buffers[i]->cpp;
private->buffers[j].flags = buffers[i]->flags;
j++;
}
*out_count = j;
return private->buffers;
}
static __DRIbuffer *
dri2GetBuffersWithFormat(__DRIdrawable * driDrawable,
int *width, int *height,
unsigned int *attachments, int count,
int *out_count, void *loaderPrivate)
{
__GLXDRIdrawable *private = loaderPrivate;
DRI2BufferPtr *buffers;
int i;
int j = 0;
buffers = DRI2GetBuffersWithFormat(private->base.pDraw,
width, height, attachments, count,
out_count);
if (*out_count > MAX_DRAWABLE_BUFFERS) {
*out_count = 0;
return NULL;
}
private->width = *width;
private->height = *height;
/* This assumes the DRI2 buffer attachment tokens matches the
* __DRIbuffer tokens. */
for (i = 0; i < *out_count; i++) {
/* Do not send the real front buffer of a window to the client.
*/
if ((private->base.pDraw->type == DRAWABLE_WINDOW)
&& (buffers[i]->attachment == DRI2BufferFrontLeft)) {
continue;
}
private->buffers[j].attachment = buffers[i]->attachment;
private->buffers[j].name = buffers[i]->name;
private->buffers[j].pitch = buffers[i]->pitch;
private->buffers[j].cpp = buffers[i]->cpp;
private->buffers[j].flags = buffers[i]->flags;
j++;
}
*out_count = j;
return private->buffers;
}
static void
dri2FlushFrontBuffer(__DRIdrawable * driDrawable, void *loaderPrivate)
{
(void) driDrawable;
__glXDRIdrawableWaitGL((__GLXdrawable *) loaderPrivate);
}
static const __DRIdri2LoaderExtension loaderExtension = {
{__DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION},
dri2GetBuffers,
dri2FlushFrontBuffer,
dri2GetBuffersWithFormat,
};
#ifdef __DRI_USE_INVALIDATE
static const __DRIuseInvalidateExtension dri2UseInvalidate = {
{__DRI_USE_INVALIDATE, __DRI_USE_INVALIDATE_VERSION}
};
#endif
static const __DRIextension *loader_extensions[] = {
&systemTimeExtension.base,
&loaderExtension.base,
#ifdef __DRI_USE_INVALIDATE
&dri2UseInvalidate.base,
#endif
NULL
};
static Bool
glxDRIEnterVT(ScrnInfoPtr scrn)
{
Bool ret;
__GLXDRIscreen *screen = (__GLXDRIscreen *)
glxGetScreen(xf86ScrnToScreen(scrn));
LogMessage(X_INFO, "AIGLX: Resuming AIGLX clients after VT switch\n");
scrn->EnterVT = screen->enterVT;
ret = scrn->EnterVT(scrn);
screen->enterVT = scrn->EnterVT;
scrn->EnterVT = glxDRIEnterVT;
if (!ret)
return FALSE;
glxResumeClients();
return TRUE;
}
static void
glxDRILeaveVT(ScrnInfoPtr scrn)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *)
glxGetScreen(xf86ScrnToScreen(scrn));
LogMessage(X_INFO, "AIGLX: Suspending AIGLX clients for VT switch\n");
glxSuspendClients();
scrn->LeaveVT = screen->leaveVT;
(*screen->leaveVT) (scrn);
screen->leaveVT = scrn->LeaveVT;
scrn->LeaveVT = glxDRILeaveVT;
}
static void
initializeExtensions(__GLXDRIscreen * screen)
{
ScreenPtr pScreen = screen->base.pScreen;
const __DRIextension **extensions;
int i;
extensions = screen->core->getExtensions(screen->driScreen);
__glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_copy_sub_buffer");
LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n");
__glXEnableExtension(screen->glx_enable_bits, "GLX_INTEL_swap_event");
LogMessage(X_INFO, "AIGLX: enabled GLX_INTEL_swap_event\n");
#if __DRI_DRI2_VERSION >= 3
if (screen->dri2->base.version >= 3) {
__glXEnableExtension(screen->glx_enable_bits,
"GLX_ARB_create_context");
__glXEnableExtension(screen->glx_enable_bits,
"GLX_ARB_create_context_profile");
__glXEnableExtension(screen->glx_enable_bits,
"GLX_EXT_create_context_es2_profile");
LogMessage(X_INFO, "AIGLX: enabled GLX_ARB_create_context\n");
LogMessage(X_INFO, "AIGLX: enabled GLX_ARB_create_context_profile\n");
LogMessage(X_INFO,
"AIGLX: enabled GLX_EXT_create_context_es2_profile\n");
}
#endif
if (DRI2HasSwapControl(pScreen)) {
__glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_swap_control");
__glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_swap_control");
LogMessage(X_INFO,
"AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n");
}
for (i = 0; extensions[i]; i++) {
#ifdef __DRI_READ_DRAWABLE
if (strcmp(extensions[i]->name, __DRI_READ_DRAWABLE) == 0) {
__glXEnableExtension(screen->glx_enable_bits,
"GLX_SGI_make_current_read");
LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n");
}
#endif
#ifdef __DRI_TEX_BUFFER
if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) {
screen->texBuffer = (const __DRItexBufferExtension *) extensions[i];
/* GLX_EXT_texture_from_pixmap is always enabled. */
LogMessage(X_INFO,
"AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n");
}
#endif
#ifdef __DRI2_FLUSH
if (strcmp(extensions[i]->name, __DRI2_FLUSH) == 0 &&
extensions[i]->version >= 3) {
screen->flush = (__DRI2flushExtension *) extensions[i];
}
#endif
#ifdef __DRI2_ROBUSTNESS
if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0 &&
screen->dri2->base.version >= 3) {
__glXEnableExtension(screen->glx_enable_bits,
"GLX_ARB_create_context_robustness");
LogMessage(X_INFO,
"AIGLX: enabled GLX_ARB_create_context_robustness\n");
}
#endif
/* Ignore unknown extensions */
}
}
static __GLXscreen *
__glXDRIscreenProbe(ScreenPtr pScreen)
{
const char *driverName, *deviceName;
__GLXDRIscreen *screen;
size_t buffer_size;
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
screen = calloc(1, sizeof *screen);
if (screen == NULL)
return NULL;
if (!xf86LoaderCheckSymbol("DRI2Connect") ||
!DRI2Connect(serverClient, pScreen, DRI2DriverDRI,
&screen->fd, &driverName, &deviceName)) {
LogMessage(X_INFO,
"AIGLX: Screen %d is not DRI2 capable\n", pScreen->myNum);
return NULL;
}
screen->base.destroy = __glXDRIscreenDestroy;
screen->base.createContext = __glXDRIscreenCreateContext;
screen->base.createDrawable = __glXDRIscreenCreateDrawable;
screen->base.swapInterval = __glXDRIdrawableSwapInterval;
screen->base.pScreen = pScreen;
__glXInitExtensionEnableBits(screen->glx_enable_bits);
screen->driver =
glxProbeDriver(driverName, (void **) &screen->core, __DRI_CORE, 1,
(void **) &screen->dri2, __DRI_DRI2, 1);
if (screen->driver == NULL) {
goto handle_error;
}
screen->driScreen =
(*screen->dri2->createNewScreen) (pScreen->myNum,
screen->fd,
loader_extensions,
&screen->driConfigs, screen);
if (screen->driScreen == NULL) {
LogMessage(X_ERROR, "AIGLX error: Calling driver entry point failed\n");
goto handle_error;
}
initializeExtensions(screen);
screen->base.fbconfigs = glxConvertConfigs(screen->core, screen->driConfigs,
GLX_WINDOW_BIT |
GLX_PIXMAP_BIT |
GLX_PBUFFER_BIT);
__glXScreenInit(&screen->base, pScreen);
/* The first call simply determines the length of the extension string.
* This allows us to allocate some memory to hold the extension string,
* but it requires that we call __glXGetExtensionString a second time.
*/
buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL);
if (buffer_size > 0) {
free(screen->base.GLXextensions);
screen->base.GLXextensions = xnfalloc(buffer_size);
(void) __glXGetExtensionString(screen->glx_enable_bits,
screen->base.GLXextensions);
}
/* We're going to assume (perhaps incorrectly?) that all DRI2-enabled
* drivers support the required extensions for GLX 1.4. The extensions
* we're assuming are:
*
* - GLX_SGI_make_current_read (1.3)
* - GLX_SGIX_fbconfig (1.3)
* - GLX_SGIX_pbuffer (1.3)
* - GLX_ARB_multisample (1.4)
*/
screen->base.GLXmajor = 1;
screen->base.GLXminor = 4;
screen->enterVT = pScrn->EnterVT;
pScrn->EnterVT = glxDRIEnterVT;
screen->leaveVT = pScrn->LeaveVT;
pScrn->LeaveVT = glxDRILeaveVT;
LogMessage(X_INFO, "AIGLX: Loaded and initialized %s\n", driverName);
return &screen->base;
handle_error:
if (screen->driver)
dlclose(screen->driver);
free(screen);
LogMessage(X_ERROR, "AIGLX: reverting to software rendering\n");
return NULL;
}
_X_EXPORT __GLXprovider __glXDRI2Provider = {
__glXDRIscreenProbe,
"DRI2",
NULL
};
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