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xserver-multidpi/GL/glx/glxdri.c
Michel Dänzer 4abd00dab7 Make sure DRI drawables are cleaned up when client dies. 
The previous scheme didn't work when the client didn't create the core drawable,
e.g. the root or composite overlay window. Use refcounting via special client
resources to fix that.
2007-07-10 09:02:08 +02:00

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/*
* Copyright © 2006 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 <sys/time.h>
#include <dlfcn.h>
#include <drm.h>
#include <GL/gl.h>
#include <GL/internal/dri_interface.h>
#include <windowstr.h>
#include <os.h>
#define _XF86DRI_SERVER_
#include <drm_sarea.h>
#include <xf86drm.h>
#include <xf86dristr.h>
#include <xf86str.h>
#include <xf86.h>
#include <dri.h>
#define DRI_NEW_INTERFACE_ONLY
#include "glxserver.h"
#include "glxutil.h"
#include "glcontextmodes.h"
#include "g_disptab.h"
#include "glapitable.h"
#include "glapi.h"
#include "glthread.h"
#include "dispatch.h"
#include "extension_string.h"
#define STRINGIFY(macro_or_string) STRINGIFY_ARG (macro_or_string)
#define STRINGIFY_ARG(contents) #contents
typedef struct __GLXDRIscreen __GLXDRIscreen;
typedef struct __GLXDRIcontext __GLXDRIcontext;
typedef struct __GLXDRIdrawable __GLXDRIdrawable;
struct __GLXDRIscreen {
__GLXscreen base;
__DRIscreen driScreen;
void *driver;
xf86EnterVTProc *enterVT;
xf86LeaveVTProc *leaveVT;
DRITexOffsetStartProcPtr texOffsetStart;
DRITexOffsetFinishProcPtr texOffsetFinish;
__GLXpixmap* texOffsetOverride[16];
GLuint lastTexOffsetOverride;
unsigned char glx_enable_bits[__GLX_EXT_BYTES];
};
struct __GLXDRIcontext {
__GLXcontext base;
__DRIcontext driContext;
};
struct __GLXDRIdrawable {
__GLXdrawable base;
__DRIdrawable *driDrawable;
};
/* History:
* 20021121 - Initial version
* 20021128 - Added __glXWindowExists() function
* 20021207 - Added support for dynamic GLX extensions,
* GLX_SGI_swap_control, GLX_SGI_video_sync,
* GLX_OML_sync_control, and GLX_MESA_swap_control.
* Never officially released. Do NOT test against
* this version. Use 20030317 instead.
* 20030317 - Added support GLX_SGIX_fbconfig,
* GLX_MESA_swap_frame_usage, GLX_OML_swap_method,
* GLX_{ARB,SGIS}_multisample, and
* GLX_SGIX_visual_select_group.
* 20030606 - Added support for GLX_SGI_make_current_read.
* 20030813 - Made support for dynamic extensions multi-head aware.
* 20030818 - Added support for GLX_MESA_allocate_memory in place of the
* deprecated GLX_NV_vertex_array_range & GLX_MESA_agp_offset
* interfaces.
* 20031201 - Added support for the first round of DRI interface changes.
* Do NOT test against this version! It has binary
* compatibility bugs, use 20040317 instead.
* 20040317 - Added the 'mode' field to __DRIcontextRec.
* 20040415 - Added support for bindContext3 and unbindContext3.
* 20040602 - Add __glXGetDrawableInfo. I though that was there
* months ago. :(
* 20050727 - Gut all the old interfaces. This breaks compatability with
* any DRI driver built to any previous version.
* 20060314 - Added support for GLX_MESA_copy_sub_buffer.
*/
#define INTERNAL_VERSION 20050727
static const char CREATE_NEW_SCREEN_FUNC[] =
"__driCreateNewScreen_" STRINGIFY (INTERNAL_VERSION);
static void
__glXDRIleaveServer(GLboolean rendering)
{
int i;
for (i = 0; rendering && i < screenInfo.numScreens; i++) {
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) __glXgetActiveScreen(i);
GLuint lastOverride = screen->lastTexOffsetOverride;
if (lastOverride) {
__GLXpixmap **texOffsetOverride = screen->texOffsetOverride;
int j;
for (j = 0; j < lastOverride; j++) {
__GLXpixmap *pGlxPix = texOffsetOverride[j];
if (pGlxPix && pGlxPix->texname) {
pGlxPix->offset =
screen->texOffsetStart((PixmapPtr)pGlxPix->pDraw);
}
}
}
}
DRIBlockHandler(NULL, NULL, NULL);
for (i = 0; rendering && i < screenInfo.numScreens; i++) {
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) __glXgetActiveScreen(i);
GLuint lastOverride = screen->lastTexOffsetOverride;
if (lastOverride) {
__GLXpixmap **texOffsetOverride = screen->texOffsetOverride;
int j;
for (j = 0; j < lastOverride; j++) {
__GLXpixmap *pGlxPix = texOffsetOverride[j];
if (pGlxPix && pGlxPix->texname) {
screen->driScreen.setTexOffset(pGlxPix->pDRICtx,
pGlxPix->texname,
pGlxPix->offset,
pGlxPix->pDraw->depth,
((PixmapPtr)pGlxPix->pDraw)->
devKind);
}
}
}
}
}
static void
__glXDRIenterServer(GLboolean rendering)
{
int i;
for (i = 0; rendering && i < screenInfo.numScreens; i++) {
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) __glXgetActiveScreen(i);
if (screen->lastTexOffsetOverride) {
CALL_Flush(GET_DISPATCH(), ());
break;
}
}
DRIWakeupHandler(NULL, 0, NULL);
}
/**
* \bug
* We're jumping through hoops here to get the DRIdrawable which the DRI
* driver tries to keep to it self... cf. FIXME in \c createDrawable.
*/
static void
__glXDRIdrawableFoo(__GLXDRIdrawable *draw)
{
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) __glXgetActiveScreen(draw->base.pDraw->pScreen->myNum);
draw->driDrawable = (*screen->driScreen.getDrawable)(NULL,
draw->base.drawId,
screen->driScreen.private);
}
static void
__glXDRIdrawableDestroy(__GLXdrawable *private)
{
#if 0
(*glxPriv->driDrawable.destroyDrawable)(NULL,
glxPriv->driDrawable.private);
#endif
xfree(private);
}
static GLboolean
__glXDRIdrawableResize(__GLXdrawable *glxPriv)
{
/* Nothing to do here, the DRI driver asks the server for drawable
* geometry when it sess the SAREA timestamps change.*/
return GL_TRUE;
}
static GLboolean
__glXDRIdrawableSwapBuffers(__GLXdrawable *basePrivate)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) basePrivate;
__glXDRIdrawableFoo(private);
(*private->driDrawable->swapBuffers)(NULL,
private->driDrawable->private);
return TRUE;
}
static int
__glXDRIdrawableSwapInterval(__GLXdrawable *baseDrawable, int interval)
{
__GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseDrawable;
__glXDRIdrawableFoo(draw);
draw->driDrawable->swap_interval = interval;
return 0;
}
static void
__glXDRIdrawableCopySubBuffer(__GLXdrawable *basePrivate,
int x, int y, int w, int h)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) basePrivate;
__glXDRIdrawableFoo(private);
(*private->driDrawable->copySubBuffer)(NULL,
private->driDrawable->private,
x, y, w, h);
}
static void
__glXDRIcontextDestroy(__GLXcontext *baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
context->driContext.destroyContext(NULL,
context->base.pScreen->myNum,
context->driContext.private);
__glXContextDestroy(&context->base);
xfree(context);
}
static int
__glXDRIcontextMakeCurrent(__GLXcontext *baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
return (*context->driContext.bindContext)(NULL,
context->base.pScreen->myNum,
baseContext->drawPriv->drawId,
baseContext->readPriv->drawId,
&context->driContext);
}
static int
__glXDRIcontextLoseCurrent(__GLXcontext *baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
return (*context->driContext.unbindContext)(NULL,
context->base.pScreen->myNum,
baseContext->drawPriv->drawId,
baseContext->readPriv->drawId,
&context->driContext);
}
static int
__glXDRIcontextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc,
unsigned long mask)
{
__GLXDRIcontext *dst = (__GLXDRIcontext *) baseDst;
__GLXDRIcontext *src = (__GLXDRIcontext *) baseSrc;
/* FIXME: We will need to add DRIcontext::copyContext for this. */
(void) dst;
(void) src;
return FALSE;
}
static int
__glXDRIcontextForceCurrent(__GLXcontext *baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
return (*context->driContext.bindContext)(NULL,
context->base.pScreen->myNum,
baseContext->drawPriv->drawId,
baseContext->readPriv->drawId,
&context->driContext);
}
static void
glxFillAlphaChannel (PixmapPtr pixmap, int x, int y, int width, int height)
{
int i;
CARD32 *p, *end, *pixels = (CARD32 *)pixmap->devPrivate.ptr;
CARD32 rowstride = pixmap->devKind / 4;
for (i = y; i < y + height; i++)
{
p = &pixels[i * rowstride + x];
end = p + width;
while (p < end)
*p++ |= 0xFF000000;
}
}
/*
* (sticking this here for lack of a better place)
* Known issues with the GLX_EXT_texture_from_pixmap implementation:
* - In general we ignore the fbconfig, lots of examples follow
* - No fbconfig handling for multiple mipmap levels
* - No fbconfig handling for 1D textures
* - No fbconfig handling for TEXTURE_TARGET
* - No fbconfig exposure of Y inversion state
* - No GenerateMipmapEXT support (due to no FBO support)
* - No support for anything but 16bpp and 32bpp-sparse pixmaps
*/
static int
__glXDRIbindTexImage(__GLXcontext *baseContext,
int buffer,
__GLXpixmap *glxPixmap)
{
RegionPtr pRegion = NULL;
PixmapPtr pixmap;
int w, h, bpp, override = 0;
GLenum target, format, type;
ScreenPtr pScreen = glxPixmap->pScreen;
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) __glXgetActiveScreen(pScreen->myNum);
pixmap = (PixmapPtr) glxPixmap->pDraw;
w = pixmap->drawable.width;
h = pixmap->drawable.height;
if (h & (h - 1) || w & (w - 1))
target = GL_TEXTURE_RECTANGLE_ARB;
else
target = GL_TEXTURE_2D;
if (screen->texOffsetStart && screen->driScreen.setTexOffset) {
__GLXpixmap **texOffsetOverride = screen->texOffsetOverride;
int i, firstEmpty = 16, texname;
for (i = 0; i < 16; i++) {
if (texOffsetOverride[i] == glxPixmap)
goto alreadyin;
if (firstEmpty == 16 && !texOffsetOverride[i])
firstEmpty = i;
}
if (firstEmpty == 16) {
ErrorF("%s: Failed to register texture offset override\n", __func__);
goto nooverride;
}
if (firstEmpty >= screen->lastTexOffsetOverride)
screen->lastTexOffsetOverride = firstEmpty + 1;
texOffsetOverride[firstEmpty] = glxPixmap;
alreadyin:
override = 1;
glxPixmap->pDRICtx = &((__GLXDRIcontext*)baseContext)->driContext;
CALL_GetIntegerv(GET_DISPATCH(), (target == GL_TEXTURE_2D ?
GL_TEXTURE_BINDING_2D :
GL_TEXTURE_BINDING_RECTANGLE_NV,
&texname));
if (texname == glxPixmap->texname)
return Success;
glxPixmap->texname = texname;
screen->driScreen.setTexOffset(glxPixmap->pDRICtx, texname, 0,
pixmap->drawable.depth, pixmap->devKind);
}
nooverride:
if (!glxPixmap->pDamage) {
if (!override) {
glxPixmap->pDamage = DamageCreate(NULL, NULL, DamageReportNone,
TRUE, pScreen, NULL);
if (!glxPixmap->pDamage)
return BadAlloc;
DamageRegister ((DrawablePtr) pixmap, glxPixmap->pDamage);
}
pRegion = NULL;
} else {
pRegion = DamageRegion(glxPixmap->pDamage);
if (REGION_NIL(pRegion))
return Success;
}
/* XXX 24bpp packed, 8, etc */
if (pixmap->drawable.depth >= 24) {
bpp = 4;
format = GL_BGRA;
type =
#if X_BYTE_ORDER == X_BIG_ENDIAN
!override ? GL_UNSIGNED_INT_8_8_8_8_REV :
#endif
GL_UNSIGNED_BYTE;
} else {
bpp = 2;
format = GL_RGB;
type = GL_UNSIGNED_SHORT_5_6_5;
}
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ROW_LENGTH,
pixmap->devKind / bpp) );
if (pRegion == NULL)
{
if (!override && pixmap->drawable.depth == 24)
glxFillAlphaChannel(pixmap,
pixmap->drawable.x,
pixmap->drawable.y,
pixmap->drawable.width,
pixmap->drawable.height);
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_PIXELS,
pixmap->drawable.x) );
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_ROWS,
pixmap->drawable.y) );
CALL_TexImage2D( GET_DISPATCH(),
(target,
0,
bpp == 4 ? 4 : 3,
pixmap->drawable.width,
pixmap->drawable.height,
0,
format,
type,
override ? NULL : pixmap->devPrivate.ptr) );
} else if (!override) {
int i, numRects;
BoxPtr p;
numRects = REGION_NUM_RECTS (pRegion);
p = REGION_RECTS (pRegion);
for (i = 0; i < numRects; i++)
{
if (pixmap->drawable.depth == 24)
glxFillAlphaChannel(pixmap,
pixmap->drawable.x + p[i].x1,
pixmap->drawable.y + p[i].y1,
p[i].x2 - p[i].x1,
p[i].y2 - p[i].y1);
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_PIXELS,
pixmap->drawable.x + p[i].x1) );
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_ROWS,
pixmap->drawable.y + p[i].y1) );
CALL_TexSubImage2D( GET_DISPATCH(),
(target,
0,
p[i].x1, p[i].y1,
p[i].x2 - p[i].x1, p[i].y2 - p[i].y1,
format,
type,
pixmap->devPrivate.ptr) );
}
}
if (!override)
DamageEmpty(glxPixmap->pDamage);
return Success;
}
static int
__glXDRIreleaseTexImage(__GLXcontext *baseContext,
int buffer,
__GLXpixmap *pixmap)
{
ScreenPtr pScreen = pixmap->pScreen;
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) __glXgetActiveScreen(pScreen->myNum);
GLuint lastOverride = screen->lastTexOffsetOverride;
if (lastOverride) {
__GLXpixmap **texOffsetOverride = screen->texOffsetOverride;
int i;
for (i = 0; i < lastOverride; i++) {
if (texOffsetOverride[i] == pixmap) {
if (screen->texOffsetFinish)
screen->texOffsetFinish((PixmapPtr)pixmap->pDraw);
texOffsetOverride[i] = NULL;
if (i + 1 == lastOverride) {
lastOverride = 0;
while (i--) {
if (texOffsetOverride[i]) {
lastOverride = i + 1;
break;
}
}
screen->lastTexOffsetOverride = lastOverride;
break;
}
}
}
}
return Success;
}
static __GLXtextureFromPixmap __glXDRItextureFromPixmap = {
__glXDRIbindTexImage,
__glXDRIreleaseTexImage
};
static void
__glXDRIscreenDestroy(__GLXscreen *baseScreen)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
screen->driScreen.destroyScreen(NULL,
screen->base.pScreen->myNum,
screen->driScreen.private);
dlclose(screen->driver);
__glXScreenDestroy(baseScreen);
xfree(screen);
}
static __GLXcontext *
__glXDRIscreenCreateContext(__GLXscreen *baseScreen,
__GLcontextModes *modes,
__GLXcontext *baseShareContext)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
__GLXDRIcontext *context, *shareContext;
void *sharePrivate;
shareContext = (__GLXDRIcontext *) baseShareContext;
if (shareContext)
sharePrivate = shareContext->driContext.private;
else
sharePrivate = NULL;
context = xalloc(sizeof *context);
if (context == NULL)
return NULL;
memset(context, 0, sizeof *context);
context->base.destroy = __glXDRIcontextDestroy;
context->base.makeCurrent = __glXDRIcontextMakeCurrent;
context->base.loseCurrent = __glXDRIcontextLoseCurrent;
context->base.copy = __glXDRIcontextCopy;
context->base.forceCurrent = __glXDRIcontextForceCurrent;
context->base.pScreen = screen->base.pScreen;
context->base.textureFromPixmap = &__glXDRItextureFromPixmap;
context->driContext.private =
screen->driScreen.createNewContext(NULL, modes,
0, /* render type */
sharePrivate,
&context->driContext);
context->driContext.mode = modes;
return &context->base;
}
static __GLXdrawable *
__glXDRIscreenCreateDrawable(__GLXscreen *screen,
DrawablePtr pDraw,
XID drawId,
__GLcontextModes *modes)
{
__GLXDRIdrawable *private;
private = xalloc(sizeof *private);
if (private == NULL)
return NULL;
memset(private, 0, sizeof *private);
if (!__glXDrawableInit(&private->base, screen, pDraw, drawId, modes)) {
xfree(private);
return NULL;
}
private->base.destroy = __glXDRIdrawableDestroy;
private->base.resize = __glXDRIdrawableResize;
private->base.swapBuffers = __glXDRIdrawableSwapBuffers;
private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer;
#if 0
/* FIXME: It would only be natural that we called
* driScreen->createNewDrawable here but the DRI drivers manage
* them a little oddly. FIXME: describe this better.*/
/* The last argument is 'attrs', which is used with pbuffers which
* we currently don't support. */
glxPriv->driDrawable.private =
(screen->driScreen.createNewDrawable)(NULL, modes,
drawId,
&glxPriv->driDrawable,
0,
NULL);
#endif
return &private->base;
}
static unsigned
filter_modes(__GLcontextModes **server_modes,
const __GLcontextModes *driver_modes)
{
__GLcontextModes * m;
__GLcontextModes ** prev_next;
const __GLcontextModes * check;
unsigned modes_count = 0;
if ( driver_modes == NULL ) {
LogMessage(X_WARNING,
"AIGLX: 3D driver returned no fbconfigs.\n");
return 0;
}
/* For each mode in server_modes, check to see if a matching mode exists
* in driver_modes. If not, then the mode is not available.
*/
prev_next = server_modes;
for ( m = *prev_next ; m != NULL ; m = *prev_next ) {
GLboolean do_delete = GL_TRUE;
for ( check = driver_modes ; check != NULL ; check = check->next ) {
if ( _gl_context_modes_are_same( m, check ) ) {
do_delete = GL_FALSE;
break;
}
}
/* The 3D has to support all the modes that match the GLX visuals
* sent from the X server.
*/
if ( do_delete && (m->visualID != 0) ) {
do_delete = GL_FALSE;
LogMessage(X_WARNING,
"AIGLX: 3D driver claims to not support "
"visual 0x%02x\n", m->visualID);
}
if ( do_delete ) {
*prev_next = m->next;
m->next = NULL;
_gl_context_modes_destroy( m );
}
else {
modes_count++;
prev_next = & m->next;
}
}
return modes_count;
}
static void
enable_glx_extension(void *psc, const char *ext_name)
{
__GLXDRIscreen * const screen = (__GLXDRIscreen *) psc;
__glXEnableExtension(screen->glx_enable_bits, ext_name);
}
static __DRIfuncPtr getProcAddress(const char *proc_name)
{
if (strcmp(proc_name, "glxEnableExtension") == 0) {
return (__DRIfuncPtr) enable_glx_extension;
}
return NULL;
}
static __DRIscreen *findScreen(__DRInativeDisplay *dpy, int scrn)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *) __glXgetActiveScreen(scrn);
return &screen->driScreen;
}
static GLboolean windowExists(__DRInativeDisplay *dpy, __DRIid draw)
{
DrawablePtr pDrawable = (DrawablePtr) LookupIDByType(draw, RT_WINDOW);
int unused;
drm_clip_rect_t *pRects;
return pDrawable ? DRIGetDrawableInfo(pDrawable->pScreen, pDrawable,
(unsigned*)&unused, (unsigned*)&unused,
&unused, &unused, &unused, &unused,
&unused, &pRects, &unused, &unused,
&unused, &pRects)
: GL_FALSE;
}
static GLboolean createContext(__DRInativeDisplay *dpy, int screen,
int configID, void *contextID,
drm_context_t *hw_context)
{
XID fakeID;
VisualPtr visual;
int i;
ScreenPtr pScreen;
GLboolean retval;
pScreen = screenInfo.screens[screen];
/* Find the requested X visual */
visual = pScreen->visuals;
for (i = 0; i < pScreen->numVisuals; i++, visual++)
if (visual->vid == configID)
break;
if (i == pScreen->numVisuals)
return GL_FALSE;
fakeID = FakeClientID(0);
*(XID *) contextID = fakeID;
__glXDRIenterServer(GL_FALSE);
retval = DRICreateContext(pScreen, visual, fakeID, hw_context);
__glXDRIleaveServer(GL_FALSE);
return retval;
}
static GLboolean destroyContext(__DRInativeDisplay *dpy, int screen,
__DRIid context)
{
GLboolean retval;
__glXDRIenterServer(GL_FALSE);
retval = DRIDestroyContext(screenInfo.screens[screen], context);
__glXDRIleaveServer(GL_FALSE);
return retval;
}
static GLboolean
createDrawable(__DRInativeDisplay *dpy, int screen,
__DRIid drawable, drm_drawable_t *hHWDrawable)
{
DrawablePtr pDrawable;
GLboolean retval;
pDrawable = (DrawablePtr) LookupIDByClass(drawable, RC_DRAWABLE);
if (!pDrawable)
return GL_FALSE;
__glXDRIenterServer(GL_FALSE);
retval = DRICreateDrawable(screenInfo.screens[screen], __pGlxClient,
pDrawable, hHWDrawable);
__glXDRIleaveServer(GL_FALSE);
return retval;
}
static GLboolean
destroyDrawable(__DRInativeDisplay *dpy, int screen, __DRIid drawable)
{
DrawablePtr pDrawable;
GLboolean retval;
pDrawable = (DrawablePtr) LookupIDByClass(drawable, RC_DRAWABLE);
if (!pDrawable)
return GL_FALSE;
__glXDRIenterServer(GL_FALSE);
retval = DRIDestroyDrawable(screenInfo.screens[screen], __pGlxClient,
pDrawable);
__glXDRIleaveServer(GL_FALSE);
return retval;
}
static GLboolean
getDrawableInfo(__DRInativeDisplay *dpy, int screen,
__DRIid drawable, unsigned int *index, unsigned int *stamp,
int *x, int *y, int *width, int *height,
int *numClipRects, drm_clip_rect_t **ppClipRects,
int *backX, int *backY,
int *numBackClipRects, drm_clip_rect_t **ppBackClipRects)
{
DrawablePtr pDrawable;
drm_clip_rect_t *pClipRects, *pBackClipRects;
GLboolean retval;
size_t size;
pDrawable = (DrawablePtr) LookupIDByClass(drawable, RC_DRAWABLE);
if (!pDrawable) {
ErrorF("getDrawableInfo failed to look up window\n");
*index = 0;
*stamp = 0;
*x = 0;
*y = 0;
*width = 0;
*height = 0;
*numClipRects = 0;
*ppClipRects = NULL;
*backX = 0;
*backY = 0;
*numBackClipRects = 0;
*ppBackClipRects = NULL;
return GL_FALSE;
}
__glXDRIenterServer(GL_FALSE);
retval = DRIGetDrawableInfo(screenInfo.screens[screen],
pDrawable, index, stamp,
x, y, width, height,
numClipRects, &pClipRects,
backX, backY,
numBackClipRects, &pBackClipRects);
__glXDRIleaveServer(GL_FALSE);
if (*numClipRects > 0) {
size = sizeof (drm_clip_rect_t) * *numClipRects;
*ppClipRects = xalloc (size);
/* Clip cliprects to screen dimensions (redirected windows) */
if (*ppClipRects != NULL) {
ScreenPtr pScreen = screenInfo.screens[screen];
int i, j;
for (i = 0, j = 0; i < *numClipRects; i++) {
(*ppClipRects)[j].x1 = max(pClipRects[i].x1, 0);
(*ppClipRects)[j].y1 = max(pClipRects[i].y1, 0);
(*ppClipRects)[j].x2 = min(pClipRects[i].x2, pScreen->width);
(*ppClipRects)[j].y2 = min(pClipRects[i].y2, pScreen->height);
if ((*ppClipRects)[j].x1 < (*ppClipRects)[j].x2 &&
(*ppClipRects)[j].y1 < (*ppClipRects)[j].y2) {
j++;
}
}
if (*numClipRects != j) {
*numClipRects = j;
*ppClipRects = xrealloc (*ppClipRects,
sizeof (drm_clip_rect_t) *
*numClipRects);
}
} else
*numClipRects = 0;
}
else {
*ppClipRects = NULL;
}
if (*numBackClipRects > 0) {
size = sizeof (drm_clip_rect_t) * *numBackClipRects;
*ppBackClipRects = xalloc (size);
if (*ppBackClipRects != NULL)
memcpy (*ppBackClipRects, pBackClipRects, size);
}
else {
*ppBackClipRects = NULL;
}
return retval;
}
static int
getUST(int64_t *ust)
{
struct timeval tv;
if (ust == NULL)
return -EFAULT;
if (gettimeofday(&tv, NULL) == 0) {
ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
return 0;
} else {
return -errno;
}
}
/* Table of functions that we export to the driver. */
static const __DRIinterfaceMethods interface_methods = {
getProcAddress,
_gl_context_modes_create,
_gl_context_modes_destroy,
findScreen,
windowExists,
createContext,
destroyContext,
createDrawable,
destroyDrawable,
getDrawableInfo,
getUST,
NULL, /* glXGetMscRateOML, */
};
static const char dri_driver_path[] = DRI_DRIVER_PATH;
static Bool
glxDRIEnterVT (int index, int flags)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *) __glXgetActiveScreen(index);
Bool ret;
LogMessage(X_INFO, "AIGLX: Resuming AIGLX clients after VT switch\n");
if (!(*screen->enterVT) (index, flags))
return FALSE;
glxResumeClients();
return TRUE;
}
static void
glxDRILeaveVT (int index, int flags)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *) __glXgetActiveScreen(index);
LogMessage(X_INFO, "AIGLX: Suspending AIGLX clients for VT switch\n");
glxSuspendClients();
return (*screen->leaveVT) (index, flags);
}
static __GLXscreen *
__glXDRIscreenProbe(ScreenPtr pScreen)
{
PFNCREATENEWSCREENFUNC createNewScreen;
drm_handle_t hSAREA;
drmAddress pSAREA = NULL;
char *BusID;
__DRIversion ddx_version;
__DRIversion dri_version;
__DRIversion drm_version;
__DRIframebuffer framebuffer;
int fd = -1;
int status;
int api_ver = 20070121;
drm_magic_t magic;
drmVersionPtr version;
int newlyopened;
char *driverName;
drm_handle_t hFB;
int junk;
__GLcontextModes * driver_modes;
__GLXDRIscreen *screen;
void *dev_priv = NULL;
char filename[128];
Bool isCapable;
size_t buffer_size;
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
if (!xf86LoaderCheckSymbol("DRIQueryDirectRenderingCapable") ||
!DRIQueryDirectRenderingCapable(pScreen, &isCapable) ||
!isCapable) {
LogMessage(X_INFO,
"AIGLX: Screen %d is not DRI capable\n", pScreen->myNum);
return NULL;
}
screen = xalloc(sizeof *screen);
if (screen == NULL)
return NULL;
memset(screen, 0, sizeof *screen);
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->driScreen.screenConfigs = screen;
/* DRI protocol version. */
dri_version.major = XF86DRI_MAJOR_VERSION;
dri_version.minor = XF86DRI_MINOR_VERSION;
dri_version.patch = XF86DRI_PATCH_VERSION;
framebuffer.base = NULL;
framebuffer.dev_priv = NULL;
if (!DRIOpenConnection(pScreen, &hSAREA, &BusID)) {
LogMessage(X_ERROR, "AIGLX error: DRIOpenConnection failed\n");
goto handle_error;
}
fd = drmOpenOnce(NULL, BusID, &newlyopened);
if (fd < 0) {
LogMessage(X_ERROR, "AIGLX error: drmOpenOnce failed (%s)\n",
strerror(-fd));
goto handle_error;
}
if (drmGetMagic(fd, &magic)) {
LogMessage(X_ERROR, "AIGLX error: drmGetMagic failed\n");
goto handle_error;
}
version = drmGetVersion(fd);
if (version) {
drm_version.major = version->version_major;
drm_version.minor = version->version_minor;
drm_version.patch = version->version_patchlevel;
drmFreeVersion(version);
}
else {
drm_version.major = -1;
drm_version.minor = -1;
drm_version.patch = -1;
}
if (newlyopened && !DRIAuthConnection(pScreen, magic)) {
LogMessage(X_ERROR, "AIGLX error: DRIAuthConnection failed\n");
goto handle_error;
}
/* Get device name (like "tdfx") and the ddx version numbers.
* We'll check the version in each DRI driver's "createNewScreen"
* function. */
if (!DRIGetClientDriverName(pScreen,
&ddx_version.major,
&ddx_version.minor,
&ddx_version.patch,
&driverName)) {
LogMessage(X_ERROR, "AIGLX error: DRIGetClientDriverName failed\n");
goto handle_error;
}
snprintf(filename, sizeof filename, "%s/%s_dri.so",
dri_driver_path, driverName);
screen->driver = dlopen(filename, RTLD_LAZY | RTLD_LOCAL);
if (screen->driver == NULL) {
LogMessage(X_ERROR, "AIGLX error: dlopen of %s failed (%s)\n",
filename, dlerror());
goto handle_error;
}
createNewScreen = dlsym(screen->driver, CREATE_NEW_SCREEN_FUNC);
if (createNewScreen == NULL) {
LogMessage(X_ERROR, "AIGLX error: dlsym for %s failed (%s)\n",
CREATE_NEW_SCREEN_FUNC, dlerror());
goto handle_error;
}
/*
* Get device-specific info. pDevPriv will point to a struct
* (such as DRIRADEONRec in xfree86/driver/ati/radeon_dri.h) that
* has information about the screen size, depth, pitch, ancilliary
* buffers, DRM mmap handles, etc.
*/
if (!DRIGetDeviceInfo(pScreen, &hFB, &junk,
&framebuffer.size, &framebuffer.stride,
&framebuffer.dev_priv_size, &framebuffer.dev_priv)) {
LogMessage(X_ERROR, "AIGLX error: XF86DRIGetDeviceInfo failed");
goto handle_error;
}
/* Sigh... the DRI interface is broken; the DRI driver will free
* the dev private pointer using _mesa_free() on screen destroy,
* but we can't use _mesa_malloc() here. In fact, the DRI driver
* shouldn't free data it didn't allocate itself, but what can you
* do... */
dev_priv = xalloc(framebuffer.dev_priv_size);
if (dev_priv == NULL) {
LogMessage(X_ERROR, "AIGLX error: dev_priv allocation failed");
goto handle_error;
}
memcpy(dev_priv, framebuffer.dev_priv, framebuffer.dev_priv_size);
framebuffer.dev_priv = dev_priv;
framebuffer.width = pScreen->width;
framebuffer.height = pScreen->height;
/* Map the framebuffer region. */
status = drmMap(fd, hFB, framebuffer.size,
(drmAddressPtr)&framebuffer.base);
if (status != 0) {
LogMessage(X_ERROR, "AIGLX error: drmMap of framebuffer failed (%s)",
strerror(-status));
goto handle_error;
}
/* Map the SAREA region. Further mmap regions may be setup in
* each DRI driver's "createNewScreen" function.
*/
status = drmMap(fd, hSAREA, SAREA_MAX, &pSAREA);
if (status != 0) {
LogMessage(X_ERROR, "AIGLX error: drmMap of SAREA failed (%s)",
strerror(-status));
goto handle_error;
}
driver_modes = NULL;
screen->driScreen.private =
(*createNewScreen)(NULL, pScreen->myNum,
&screen->driScreen,
screen->base.modes,
&ddx_version,
&dri_version,
&drm_version,
&framebuffer,
pSAREA,
fd,
api_ver,
&interface_methods,
&driver_modes);
if (screen->driScreen.private == NULL) {
LogMessage(X_ERROR, "AIGLX error: Calling driver entry point failed");
goto handle_error;
}
DRIGetTexOffsetFuncs(pScreen, &screen->texOffsetStart,
&screen->texOffsetFinish);
__glXScreenInit(&screen->base, pScreen);
buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL);
if (buffer_size > 0) {
if (screen->base.GLXextensions != NULL) {
xfree(screen->base.GLXextensions);
}
screen->base.GLXextensions = xnfalloc(buffer_size);
(void) __glXGetExtensionString(screen->glx_enable_bits,
screen->base.GLXextensions);
}
filter_modes(&screen->base.modes, driver_modes);
_gl_context_modes_destroy(driver_modes);
__glXsetEnterLeaveServerFuncs(__glXDRIenterServer, __glXDRIleaveServer);
screen->enterVT = pScrn->EnterVT;
pScrn->EnterVT = glxDRIEnterVT;
screen->leaveVT = pScrn->LeaveVT;
pScrn->LeaveVT = glxDRILeaveVT;
LogMessage(X_INFO,
"AIGLX: Loaded and initialized %s\n", filename);
return &screen->base;
handle_error:
if (pSAREA != NULL)
drmUnmap(pSAREA, SAREA_MAX);
if (framebuffer.base != NULL)
drmUnmap((drmAddress)framebuffer.base, framebuffer.size);
if (dev_priv != NULL)
xfree(dev_priv);
if (fd >= 0)
drmCloseOnce(fd);
DRICloseConnection(pScreen);
if (screen->driver)
dlclose(screen->driver);
xfree(screen);
LogMessage(X_ERROR, "AIGLX: reverting to software rendering\n");
return NULL;
}
__GLXprovider __glXDRIProvider = {
__glXDRIscreenProbe,
"DRI",
NULL
};
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