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xserver-multidpi/GL/glx/glxdri.c

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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>
#include "servermd.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
__glXDRIdoReleaseTexImage(__GLXDRIscreen *screen, __GLXDRIdrawable *drawable)
{
GLuint lastOverride = screen->lastTexOffsetOverride;
if (lastOverride) {
__GLXDRIdrawable **texOffsetOverride = screen->texOffsetOverride;
int i;
for (i = 0; i < lastOverride; i++) {
if (texOffsetOverride[i] == drawable) {
texOffsetOverride[i] = NULL;
if (i + 1 == lastOverride) {
lastOverride = 0;
while (i--) {
if (texOffsetOverride[i]) {
lastOverride = i + 1;
break;
}
}
screen->lastTexOffsetOverride = lastOverride;
break;
}
}
}
}
}
static void
__glXDRIdrawableDestroy(__GLXdrawable *drawable)
{
__GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
int i;
for (i = 0; i < screenInfo.numScreens; i++) {
__glXDRIdoReleaseTexImage((__GLXDRIscreen *)
glxGetScreen(screenInfo.screens[i]),
private);
}
(*private->driDrawable.destroyDrawable)(&private->driDrawable);
/* If the X window was destroyed, the dri DestroyWindow hook will
* aready have taken care of this, so only call if pDraw isn't NULL. */
if (drawable->pDraw != NULL) {
__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->pGlxScreen->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 (CARD32 *pixels, CARD32 rowstride, int width, int height)
{
int i;
CARD32 *p, *end;
rowstride /= 4;
for (i = 0; i < height; i++)
{
p = pixels;
end = p + width;
while (p < end)
*p++ |= 0xFF000000;
pixels += rowstride;
}
}
/*
* (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;
}
if (pRegion == NULL)
{
void *data = NULL;
if (!override) {
unsigned pitch = PixmapBytePad(pixmap->drawable.width,
pixmap->drawable.depth);
data = xalloc(pitch * pixmap->drawable.height);
pScreen->GetImage(&pixmap->drawable, 0 /*pixmap->drawable.x*/,
0 /*pixmap->drawable.y*/, pixmap->drawable.width,
pixmap->drawable.height, ZPixmap, ~0, data);
if (pixmap->drawable.depth == 24)
glxFillAlphaChannel(data,
pitch,
pixmap->drawable.width,
pixmap->drawable.height);
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ROW_LENGTH,
pitch / bpp) );
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_PIXELS, 0) );
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_ROWS, 0) );
}
CALL_TexImage2D( GET_DISPATCH(),
(glxPixmap->target,
0,
bpp == 4 ? 4 : 3,
pixmap->drawable.width,
pixmap->drawable.height,
0,
format,
type,
data) );
xfree(data);
} else if (!override) {
int i, numRects;
BoxPtr p;
numRects = REGION_NUM_RECTS (pRegion);
p = REGION_RECTS (pRegion);
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_PIXELS, 0) );
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_ROWS, 0) );
for (i = 0; i < numRects; i++)
{
unsigned pitch = PixmapBytePad(p[i].x2 - p[i].x1,
pixmap->drawable.depth);
void *data = xalloc(pitch * (p[i].y2 - p[i].y1));
pScreen->GetImage(&pixmap->drawable, /*pixmap->drawable.x +*/ p[i].x1,
/*pixmap->drawable.y*/ + p[i].y1, p[i].x2 - p[i].x1,
p[i].y2 - p[i].y1, ZPixmap, ~0, data);
if (pixmap->drawable.depth == 24)
glxFillAlphaChannel(data,
pitch,
p[i].x2 - p[i].x1,
p[i].y2 - p[i].y1);
CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ROW_LENGTH,
pitch / bpp) );
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,
data) );
xfree(data);
}
}
if (!override)
DamageEmpty(driDraw->pDamage);
return Success;
}
static int
__glXDRIreleaseTexImage(__GLXcontext *baseContext,
int buffer,
__GLXdrawable *pixmap)
{
__glXDRIdoReleaseTexImage((__GLXDRIscreen *)
glxGetScreen(pixmap->pDraw->pScreen),
containerOf(pixmap, __GLXDRIdrawable, base));
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.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;
drm_clip_rect_t *pClipRects, *pBackClipRects;
GLboolean retval;
size_t size;
/* If the X window has been destroyed, give up here. */
if (drawable->base.pDraw == NULL)
return GL_FALSE;
pScreen = drawable->base.pDraw->pScreen;
__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;
__glXenterServer(GL_FALSE);
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);
__glXleaveServer(GL_FALSE);
}
/* 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.fbconfigs);
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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