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xserver-multidpi/GL/glx/glxdri.c
Kristian Høgsberg 7d74690536 Simplify and clean up GLX visual initialization. 
Instead of the fragile setup where we filter the modes common between the
DDX generated GLX visuals and the DRI driver generated fbconfigs, we now
just take the fbconfigs returned by the DRI driver to be our supported set.
2007-10-18 21:03:43 -04:00

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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 containerOf(ptr, type, member) \
(type *)( (char *)ptr - offsetof(type,member) )
typedef struct __GLXDRIscreen __GLXDRIscreen;
typedef struct __GLXDRIcontext __GLXDRIcontext;
typedef struct __GLXDRIdrawable __GLXDRIdrawable;
struct __GLXDRIscreen {
__GLXscreen base;
__DRIscreen driScreen;
void *driver;
xf86EnterVTProc *enterVT;
xf86LeaveVTProc *leaveVT;
__DRIcopySubBufferExtension *copySubBuffer;
__DRIswapControlExtension *swapControl;
#ifdef __DRI_TEX_OFFSET
__DRItexOffsetExtension *texOffset;
DRITexOffsetStartProcPtr texOffsetStart;
DRITexOffsetFinishProcPtr texOffsetFinish;
__GLXDRIdrawable *texOffsetOverride[16];
GLuint lastTexOffsetOverride;
#endif
unsigned char glx_enable_bits[__GLX_EXT_BYTES];
};
struct __GLXDRIcontext {
__GLXcontext base;
__DRIcontext driContext;
XID hwContextID;
};
struct __GLXDRIdrawable {
__GLXdrawable base;
__DRIdrawable driDrawable;
/* Pulled in from old __GLXpixmap */
#ifdef __DRI_TEX_OFFSET
GLint texname;
__GLXDRIcontext *ctx;
unsigned long offset;
DamagePtr pDamage;
#endif
};
static const char CREATE_NEW_SCREEN_FUNC[] = __DRI_CREATE_NEW_SCREEN_STRING;
static void
__glXDRIleaveServer(GLboolean rendering)
{
int i;
for (i = 0; rendering && i < screenInfo.numScreens; i++) {
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) glxGetScreen(screenInfo.screens[i]);
GLuint lastOverride = screen->lastTexOffsetOverride;
if (lastOverride) {
__GLXDRIdrawable **texOffsetOverride = screen->texOffsetOverride;
int j;
for (j = 0; j < lastOverride; j++) {
__GLXDRIdrawable *pGlxPix = texOffsetOverride[j];
if (pGlxPix && pGlxPix->texname) {
pGlxPix->offset =
screen->texOffsetStart((PixmapPtr)pGlxPix->base.pDraw);
}
}
}
}
DRIBlockHandler(NULL, NULL, NULL);
for (i = 0; rendering && i < screenInfo.numScreens; i++) {
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) glxGetScreen(screenInfo.screens[i]);
GLuint lastOverride = screen->lastTexOffsetOverride;
if (lastOverride) {
__GLXDRIdrawable **texOffsetOverride = screen->texOffsetOverride;
int j;
for (j = 0; j < lastOverride; j++) {
__GLXDRIdrawable *pGlxPix = texOffsetOverride[j];
if (pGlxPix && pGlxPix->texname) {
screen->texOffset->setTexOffset(&pGlxPix->ctx->driContext,
pGlxPix->texname,
pGlxPix->offset,
pGlxPix->base.pDraw->depth,
((PixmapPtr)pGlxPix->base.pDraw)->devKind);
}
}
}
}
}
static void
__glXDRIenterServer(GLboolean rendering)
{
int i;
for (i = 0; rendering && i < screenInfo.numScreens; i++) {
__GLXDRIscreen * const screen = (__GLXDRIscreen *)
glxGetScreen(screenInfo.screens[i]);
if (screen->lastTexOffsetOverride) {
CALL_Flush(GET_DISPATCH(), ());
break;
}
}
DRIWakeupHandler(NULL, 0, NULL);
}
static void
__glXDRIdrawableDestroy(__GLXdrawable *drawable)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
(*private->driDrawable.destroyDrawable)(&private->driDrawable);
__glXenterServer(GL_FALSE);
DRIDestroyDrawable(drawable->pDraw->pScreen,
serverClient, drawable->pDraw);
__glXleaveServer(GL_FALSE);
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;
(*private->driDrawable.swapBuffers)(&private->driDrawable);
return TRUE;
}
static int
__glXDRIdrawableSwapInterval(__GLXdrawable *baseDrawable, int interval)
{
__GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseDrawable;
__GLXDRIscreen *screen = (__GLXDRIscreen *)
glxGetScreen(baseDrawable->pDraw->pScreen);
if (screen->swapControl)
screen->swapControl->setSwapInterval(&draw->driDrawable, interval);
return 0;
}
static void
__glXDRIdrawableCopySubBuffer(__GLXdrawable *basePrivate,
int x, int y, int w, int h)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) basePrivate;
__GLXDRIscreen *screen = (__GLXDRIscreen *)
glxGetScreen(basePrivate->pDraw->pScreen);
if (screen->copySubBuffer)
screen->copySubBuffer->copySubBuffer(&private->driDrawable,
x, y, w, h);
}
static void
__glXDRIcontextDestroy(__GLXcontext *baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
Bool retval;
context->driContext.destroyContext(&context->driContext);
__glXenterServer(GL_FALSE);
retval = DRIDestroyContext(baseContext->pScreen, context->hwContextID);
__glXleaveServer(GL_FALSE);
__glXContextDestroy(&context->base);
xfree(context);
}
static int
__glXDRIcontextMakeCurrent(__GLXcontext *baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
__GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
__GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
return (*context->driContext.bindContext)(&context->driContext,
&draw->driDrawable,
&read->driDrawable);
}
static int
__glXDRIcontextLoseCurrent(__GLXcontext *baseContext)
{
__GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
return (*context->driContext.unbindContext)(&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;
__GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
__GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
return (*context->driContext.bindContext)(&context->driContext,
&draw->driDrawable,
&read->driDrawable);
}
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,
__GLXdrawable *glxPixmap)
{
RegionPtr pRegion = NULL;
PixmapPtr pixmap;
int bpp, override = 0, texname;
GLenum format, type;
ScreenPtr pScreen = glxPixmap->pDraw->pScreen;
__GLXDRIdrawable *driDraw =
containerOf(glxPixmap, __GLXDRIdrawable, base);
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) glxGetScreen(pScreen);
CALL_GetIntegerv(GET_DISPATCH(), (glxPixmap->target == GL_TEXTURE_2D ?
GL_TEXTURE_BINDING_2D :
GL_TEXTURE_BINDING_RECTANGLE_NV,
&texname));
if (!texname)
return __glXError(GLXBadContextState);
pixmap = (PixmapPtr) glxPixmap->pDraw;
if (screen->texOffsetStart && screen->texOffset) {
__GLXDRIdrawable **texOffsetOverride = screen->texOffsetOverride;
int i, firstEmpty = 16;
for (i = 0; i < 16; i++) {
if (texOffsetOverride[i] == driDraw)
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] = driDraw;
alreadyin:
override = 1;
driDraw->ctx = (__GLXDRIcontext*)baseContext;
if (texname == driDraw->texname)
return Success;
driDraw->texname = texname;
screen->texOffset->setTexOffset(&driDraw->ctx->driContext, texname, 0,
pixmap->drawable.depth,
pixmap->devKind);
}
nooverride:
if (!driDraw->pDamage) {
if (!override) {
driDraw->pDamage = DamageCreate(NULL, NULL, DamageReportNone,
TRUE, pScreen, NULL);
if (!driDraw->pDamage)
return BadAlloc;
DamageRegister ((DrawablePtr) pixmap, driDraw->pDamage);
}
pRegion = NULL;
} else {
pRegion = DamageRegion(driDraw->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(),
(glxPixmap->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(),
(glxPixmap->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(driDraw->pDamage);
return Success;
}
static int
__glXDRIreleaseTexImage(__GLXcontext *baseContext,
int buffer,
__GLXdrawable *pixmap)
{
ScreenPtr pScreen = pixmap->pDraw->pScreen;
__GLXDRIdrawable *driDraw =
containerOf(pixmap, __GLXDRIdrawable, base);
__GLXDRIscreen * const screen =
(__GLXDRIscreen *) glxGetScreen(pScreen);
GLuint lastOverride = screen->lastTexOffsetOverride;
if (lastOverride) {
__GLXDRIdrawable **texOffsetOverride = screen->texOffsetOverride;
int i;
for (i = 0; i < lastOverride; i++) {
if (texOffsetOverride[i] == driDraw) {
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(&screen->driScreen);
dlclose(screen->driver);
__glXScreenDestroy(baseScreen);
xfree(screen);
}
static __GLXcontext *
__glXDRIscreenCreateContext(__GLXscreen *baseScreen,
__GLcontextModes *modes,
__GLXcontext *baseShareContext)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
__GLXDRIcontext *context, *shareContext;
VisualPtr visual;
int i;
GLboolean retval;
__DRIcontext *driShare;
drm_context_t hwContext;
ScreenPtr pScreen = baseScreen->pScreen;
shareContext = (__GLXDRIcontext *) baseShareContext;
if (shareContext)
driShare = &shareContext->driContext;
else
driShare = 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;
/* Find the requested X visual */
visual = pScreen->visuals;
for (i = 0; i < pScreen->numVisuals; i++, visual++)
if (visual->vid == modes->visualID)
break;
if (i == pScreen->numVisuals)
return GL_FALSE;
context->hwContextID = FakeClientID(0);
__glXenterServer(GL_FALSE);
retval = DRICreateContext(baseScreen->pScreen, visual,
context->hwContextID, &hwContext);
__glXleaveServer(GL_FALSE);
context->driContext.private =
screen->driScreen.createNewContext(&screen->driScreen,
modes,
0, /* render type */
driShare,
hwContext,
&context->driContext);
return &context->base;
}
static __GLXdrawable *
__glXDRIscreenCreateDrawable(__GLXscreen *screen,
DrawablePtr pDraw,
int type,
XID drawId,
__GLcontextModes *modes)
{
__GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
__GLXDRIdrawable *private;
GLboolean retval;
drm_drawable_t hwDrawable;
private = xalloc(sizeof *private);
if (private == NULL)
return NULL;
memset(private, 0, sizeof *private);
if (!__glXDrawableInit(&private->base, screen,
pDraw, type, drawId, modes)) {
xfree(private);
return NULL;
}
private->base.destroy = __glXDRIdrawableDestroy;
private->base.resize = __glXDRIdrawableResize;
private->base.swapBuffers = __glXDRIdrawableSwapBuffers;
private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer;
__glXenterServer(GL_FALSE);
retval = DRICreateDrawable(screen->pScreen, serverClient,
pDraw, &hwDrawable);
__glXleaveServer(GL_FALSE);
/* The last argument is 'attrs', which is used with pbuffers which
* we currently don't support. */
private->driDrawable.private =
(driScreen->driScreen.createNewDrawable)(&driScreen->driScreen,
modes,
&private->driDrawable,
hwDrawable, 0, NULL);
return &private->base;
}
static GLboolean
getDrawableInfo(__DRIdrawable *driDrawable,
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)
{
__GLXDRIdrawable *drawable = containerOf(driDrawable,
__GLXDRIdrawable, driDrawable);
ScreenPtr pScreen = drawable->base.pDraw->pScreen;
drm_clip_rect_t *pClipRects, *pBackClipRects;
GLboolean retval;
size_t size;
__glXenterServer(GL_FALSE);
retval = DRIGetDrawableInfo(pScreen, drawable->base.pDraw, index, stamp,
x, y, width, height,
numClipRects, &pClipRects,
backX, backY,
numBackClipRects, &pBackClipRects);
__glXleaveServer(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) {
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;
}
}
static void __glXReportDamage(__DRIdrawable *driDraw,
int x, int y,
drm_clip_rect_t *rects, int num_rects,
GLboolean front_buffer)
{
__GLXDRIdrawable *drawable =
containerOf(driDraw, __GLXDRIdrawable, driDrawable);
DrawablePtr pDraw = drawable->base.pDraw;
RegionRec region;
REGION_INIT(pDraw->pScreen, &region, (BoxPtr) rects, num_rects);
REGION_TRANSLATE(pScreen, &region, pDraw->x, pDraw->y);
DamageDamageRegion(pDraw, &region);
REGION_UNINIT(pDraw->pScreen, &region);
}
/* Table of functions that we export to the driver. */
static const __DRIinterfaceMethods interface_methods = {
_gl_context_modes_create,
_gl_context_modes_destroy,
getDrawableInfo,
getUST,
NULL, /* glXGetMscRateOML, */
__glXReportDamage,
};
static const char dri_driver_path[] = DRI_DRIVER_PATH;
static Bool
glxDRIEnterVT (int index, int flags)
{
__GLXDRIscreen *screen = (__GLXDRIscreen *)
glxGetScreen(screenInfo.screens[index]);
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 *)
glxGetScreen(screenInfo.screens[index]);
LogMessage(X_INFO, "AIGLX: Suspending AIGLX clients for VT switch\n");
glxSuspendClients();
return (*screen->leaveVT) (index, flags);
}
static void
initializeExtensions(__GLXDRIscreen *screen)
{
const __DRIextension **extensions;
int i;
extensions = screen->driScreen.getExtensions(&screen->driScreen);
for (i = 0; extensions[i]; i++) {
#ifdef __DRI_COPY_SUB_BUFFER
if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) {
screen->copySubBuffer = (__DRIcopySubBufferExtension *) extensions[i];
__glXEnableExtension(screen->glx_enable_bits,
"GLX_MESA_copy_sub_buffer");
LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n");
}
#endif
#ifdef __DRI_SWAP_CONTROL
if (strcmp(extensions[i]->name, __DRI_SWAP_CONTROL) == 0) {
screen->swapControl = (__DRIswapControlExtension *) extensions[i];
__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");
}
#endif
#ifdef __DRI_TEX_OFFSET
if (strcmp(extensions[i]->name, __DRI_TEX_OFFSET) == 0) {
screen->texOffset = (__DRItexOffsetExtension *) extensions[i];
LogMessage(X_INFO, "AIGLX: enabled GLX_texture_from_pixmap with driver support\n");
}
#endif
/* Ignore unknown extensions */
}
}
#define COPY_SUB_BUFFER_INTERNAL_VERSION 20060314
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;
__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);
/* 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;
}
screen->driScreen.private =
(*createNewScreen)(pScreen->myNum,
&screen->driScreen,
&ddx_version,
&dri_version,
&drm_version,
&framebuffer,
pSAREA,
fd,
api_ver,
&interface_methods,
&screen->base.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);
initializeExtensions(screen);
__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);
}
__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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