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xserver/hw/vfb/InitOutput.c
Emil Velikov b2a0d6065d vfb: add DRI3/glamor support 
This commit adds DRI3/glamor support, effectively translating into
hardware GPU support.

Theoretically it should be possible to use DRM/GPU drivers such as
virtio or vgem, although only the intel i915 driver is currently tested.

Since Xvfb does no modeset, it opens the render node. Currently that is
fixed to "/dev/dri/renderD128" and will be tweaked with future commits.

Specific use-cases are left for the reader - testing glamor, GL driver
or others.

v2: Drop GLAMOR_NO_XV, use GLAMOR_FOR_XORG instead (Michel Dänzer)
v3: Fix build w/o glamor
v4:
 - Split out glamor dependency patch for meson (Pekka)
 - Enhance commit message (Pekka)
 - Use O_CLOEXEC with open() (Pekka)
 - Enhance error path, memory leak comments (Pekka)

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
2019-10-11 12:03:42 +00:00

1132 lines
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/*
Copyright 1993, 1998 The Open Group
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.
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of The Open Group shall
not be used in advertising or otherwise to promote the sale, use or
other dealings in this Software without prior written authorization
from The Open Group.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#if defined(WIN32)
#include <X11/Xwinsock.h>
#endif
#include <stdio.h>
#include <X11/X.h>
#include <X11/Xproto.h>
#include <X11/Xos.h>
#include "scrnintstr.h"
#include "servermd.h"
#define PSZ 8
#include "fb.h"
#include "colormapst.h"
#include "gcstruct.h"
#include "input.h"
#include "mipointer.h"
#include "micmap.h"
#include <sys/types.h>
#ifdef HAVE_MMAP
#include <sys/mman.h>
#ifndef MAP_FILE
#define MAP_FILE 0
#endif
#endif /* HAVE_MMAP */
#include <sys/stat.h>
#include <errno.h>
#ifndef WIN32
#include <sys/param.h>
#endif
#include <X11/XWDFile.h>
#ifdef HAS_SHM
#include <sys/ipc.h>
#include <sys/shm.h>
#endif /* HAS_SHM */
#include "dix.h"
#include "miline.h"
#include "glx_extinit.h"
#include "randrstr.h"
#ifdef GLAMOR_HAS_GBM
#include <glamor.h>
#include <gbm.h>
#include <unistd.h>
#include <fcntl.h>
#endif
#define VFB_DEFAULT_WIDTH 1280
#define VFB_DEFAULT_HEIGHT 1024
#define VFB_DEFAULT_DEPTH 24
#define VFB_DEFAULT_WHITEPIXEL 1
#define VFB_DEFAULT_BLACKPIXEL 0
#define VFB_DEFAULT_LINEBIAS 0
#define XWD_WINDOW_NAME_LEN 60
typedef struct {
int width;
int paddedBytesWidth;
int paddedWidth;
int height;
int depth;
int bitsPerPixel;
int sizeInBytes;
int ncolors;
char *pfbMemory;
XWDColor *pXWDCmap;
XWDFileHeader *pXWDHeader;
Pixel blackPixel;
Pixel whitePixel;
unsigned int lineBias;
CloseScreenProcPtr closeScreen;
#ifdef HAVE_MMAP
int mmap_fd;
char mmap_file[MAXPATHLEN];
#endif
#ifdef HAS_SHM
int shmid;
#endif
#ifdef GLAMOR_HAS_GBM
int fd;
CreateScreenResourcesProcPtr createScreenResources;
struct gbm_device *gbm;
struct gbm_bo *front_bo;
#endif
} vfbScreenInfo, *vfbScreenInfoPtr;
static int vfbNumScreens;
static vfbScreenInfo *vfbScreens;
static vfbScreenInfo defaultScreenInfo = {
.width = VFB_DEFAULT_WIDTH,
.height = VFB_DEFAULT_HEIGHT,
.depth = VFB_DEFAULT_DEPTH,
.blackPixel = VFB_DEFAULT_BLACKPIXEL,
.whitePixel = VFB_DEFAULT_WHITEPIXEL,
.lineBias = VFB_DEFAULT_LINEBIAS,
};
static Bool vfbPixmapDepths[33];
#ifdef HAVE_MMAP
static char *pfbdir = NULL;
#endif
typedef enum { NORMAL_MEMORY_FB, SHARED_MEMORY_FB, MMAPPED_FILE_FB } fbMemType;
static fbMemType fbmemtype = NORMAL_MEMORY_FB;
static char needswap = 0;
static Bool Render = TRUE;
#define swapcopy16(_dst, _src) \
if (needswap) { CARD16 _s = _src; cpswaps(_s, _dst); } \
else _dst = _src;
#define swapcopy32(_dst, _src) \
if (needswap) { CARD32 _s = _src; cpswapl(_s, _dst); } \
else _dst = _src;
static void
vfbInitializePixmapDepths(void)
{
int i;
vfbPixmapDepths[1] = TRUE; /* always need bitmaps */
for (i = 2; i <= 32; i++)
vfbPixmapDepths[i] = FALSE;
}
static int
vfbBitsPerPixel(int depth)
{
if (depth == 1)
return 1;
else if (depth <= 8)
return 8;
else if (depth <= 16)
return 16;
else
return 32;
}
static void
freeScreenInfo(vfbScreenInfoPtr pvfb)
{
switch (fbmemtype) {
#ifdef HAVE_MMAP
case MMAPPED_FILE_FB:
if (-1 == unlink(pvfb->mmap_file)) {
perror("unlink");
ErrorF("unlink %s failed, %s",
pvfb->mmap_file, strerror(errno));
}
break;
#else /* HAVE_MMAP */
case MMAPPED_FILE_FB:
break;
#endif /* HAVE_MMAP */
#ifdef HAS_SHM
case SHARED_MEMORY_FB:
if (-1 == shmdt((char *) pvfb->pXWDHeader)) {
perror("shmdt");
ErrorF("shmdt failed, %s", strerror(errno));
}
break;
#else /* HAS_SHM */
case SHARED_MEMORY_FB:
break;
#endif /* HAS_SHM */
case NORMAL_MEMORY_FB:
free(pvfb->pXWDHeader);
break;
}
}
void
ddxGiveUp(enum ExitCode error)
{
int i;
/* clean up the framebuffers */
for (i = 0; i < vfbNumScreens; i++) {
freeScreenInfo(&vfbScreens[i]);
}
}
#ifdef __APPLE__
void
DarwinHandleGUI(int argc, char *argv[])
{
}
#endif
void
OsVendorInit(void)
{
}
void
OsVendorFatalError(const char *f, va_list args)
{
}
#if defined(DDXBEFORERESET)
void
ddxBeforeReset(void)
{
return;
}
#endif
#if INPUTTHREAD
/** This function is called in Xserver/os/inputthread.c when starting
the input thread. */
void
ddxInputThreadInit(void)
{
}
#endif
void
ddxUseMsg(void)
{
ErrorF("-screen scrn WxHxD set screen's width, height, depth\n");
ErrorF("-pixdepths list-of-int support given pixmap depths\n");
ErrorF("+/-render turn on/off RENDER extension support"
"(default on)\n");
ErrorF("-linebias n adjust thin line pixelization\n");
ErrorF("-blackpixel n pixel value for black\n");
ErrorF("-whitepixel n pixel value for white\n");
#ifdef HAVE_MMAP
ErrorF
("-fbdir directory put framebuffers in mmap'ed files in directory\n");
#endif
#ifdef HAS_SHM
ErrorF("-shmem put framebuffers in shared memory\n");
#endif
}
int
ddxProcessArgument(int argc, char *argv[], int i)
{
static Bool firstTime = TRUE;
static int lastScreen = -1;
vfbScreenInfo *currentScreen;
if (firstTime) {
vfbInitializePixmapDepths();
firstTime = FALSE;
}
if (lastScreen == -1)
currentScreen = &defaultScreenInfo;
else
currentScreen = &vfbScreens[lastScreen];
if (strcmp(argv[i], "-screen") == 0) { /* -screen n WxHxD */
int screenNum;
CHECK_FOR_REQUIRED_ARGUMENTS(2);
screenNum = atoi(argv[i + 1]);
/* The protocol only has a CARD8 for number of screens in the
connection setup block, so don't allow more than that. */
if ((screenNum < 0) || (screenNum >= 255)) {
ErrorF("Invalid screen number %d\n", screenNum);
UseMsg();
FatalError("Invalid screen number %d passed to -screen\n",
screenNum);
}
if (vfbNumScreens <= screenNum) {
vfbScreens =
reallocarray(vfbScreens, screenNum + 1, sizeof(*vfbScreens));
if (!vfbScreens)
FatalError("Not enough memory for screen %d\n", screenNum);
for (; vfbNumScreens <= screenNum; ++vfbNumScreens)
vfbScreens[vfbNumScreens] = defaultScreenInfo;
}
if (3 != sscanf(argv[i + 2], "%dx%dx%d",
&vfbScreens[screenNum].width,
&vfbScreens[screenNum].height,
&vfbScreens[screenNum].depth)) {
ErrorF("Invalid screen configuration %s\n", argv[i + 2]);
UseMsg();
FatalError("Invalid screen configuration %s for -screen %d\n",
argv[i + 2], screenNum);
}
lastScreen = screenNum;
return 3;
}
if (strcmp(argv[i], "-pixdepths") == 0) { /* -pixdepths list-of-depth */
int depth, ret = 1;
CHECK_FOR_REQUIRED_ARGUMENTS(1);
while ((++i < argc) && (depth = atoi(argv[i])) != 0) {
if (depth < 0 || depth > 32) {
ErrorF("Invalid pixmap depth %d\n", depth);
UseMsg();
FatalError("Invalid pixmap depth %d passed to -pixdepths\n",
depth);
}
vfbPixmapDepths[depth] = TRUE;
ret++;
}
return ret;
}
if (strcmp(argv[i], "+render") == 0) { /* +render */
Render = TRUE;
return 1;
}
if (strcmp(argv[i], "-render") == 0) { /* -render */
Render = FALSE;
#ifdef COMPOSITE
noCompositeExtension = TRUE;
#endif
return 1;
}
if (strcmp(argv[i], "-blackpixel") == 0) { /* -blackpixel n */
CHECK_FOR_REQUIRED_ARGUMENTS(1);
currentScreen->blackPixel = atoi(argv[++i]);
return 2;
}
if (strcmp(argv[i], "-whitepixel") == 0) { /* -whitepixel n */
CHECK_FOR_REQUIRED_ARGUMENTS(1);
currentScreen->whitePixel = atoi(argv[++i]);
return 2;
}
if (strcmp(argv[i], "-linebias") == 0) { /* -linebias n */
CHECK_FOR_REQUIRED_ARGUMENTS(1);
currentScreen->lineBias = atoi(argv[++i]);
return 2;
}
#ifdef HAVE_MMAP
if (strcmp(argv[i], "-fbdir") == 0) { /* -fbdir directory */
CHECK_FOR_REQUIRED_ARGUMENTS(1);
pfbdir = argv[++i];
fbmemtype = MMAPPED_FILE_FB;
return 2;
}
#endif /* HAVE_MMAP */
#ifdef HAS_SHM
if (strcmp(argv[i], "-shmem") == 0) { /* -shmem */
fbmemtype = SHARED_MEMORY_FB;
return 1;
}
#endif
return 0;
}
static void
vfbInstallColormap(ColormapPtr pmap)
{
ColormapPtr oldpmap = GetInstalledmiColormap(pmap->pScreen);
if (pmap != oldpmap) {
int entries;
XWDFileHeader *pXWDHeader;
VisualPtr pVisual;
Pixel *ppix;
xrgb *prgb;
xColorItem *defs;
int i;
miInstallColormap(pmap);
entries = pmap->pVisual->ColormapEntries;
pXWDHeader = vfbScreens[pmap->pScreen->myNum].pXWDHeader;
pVisual = pmap->pVisual;
swapcopy32(pXWDHeader->visual_class, pVisual->class);
swapcopy32(pXWDHeader->red_mask, pVisual->redMask);
swapcopy32(pXWDHeader->green_mask, pVisual->greenMask);
swapcopy32(pXWDHeader->blue_mask, pVisual->blueMask);
swapcopy32(pXWDHeader->bits_per_rgb, pVisual->bitsPerRGBValue);
swapcopy32(pXWDHeader->colormap_entries, pVisual->ColormapEntries);
ppix = xallocarray(entries, sizeof(Pixel));
prgb = xallocarray(entries, sizeof(xrgb));
defs = xallocarray(entries, sizeof(xColorItem));
for (i = 0; i < entries; i++)
ppix[i] = i;
/* XXX truecolor */
QueryColors(pmap, entries, ppix, prgb, serverClient);
for (i = 0; i < entries; i++) { /* convert xrgbs to xColorItems */
defs[i].pixel = ppix[i] & 0xff; /* change pixel to index */
defs[i].red = prgb[i].red;
defs[i].green = prgb[i].green;
defs[i].blue = prgb[i].blue;
defs[i].flags = DoRed | DoGreen | DoBlue;
}
(*pmap->pScreen->StoreColors) (pmap, entries, defs);
free(ppix);
free(prgb);
free(defs);
}
}
static void
vfbStoreColors(ColormapPtr pmap, int ndef, xColorItem * pdefs)
{
XWDColor *pXWDCmap;
int i;
if (pmap != GetInstalledmiColormap(pmap->pScreen)) {
return;
}
pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap;
if ((pmap->pVisual->class | DynamicClass) == DirectColor) {
return;
}
for (i = 0; i < ndef; i++) {
if (pdefs[i].flags & DoRed) {
swapcopy16(pXWDCmap[pdefs[i].pixel].red, pdefs[i].red);
}
if (pdefs[i].flags & DoGreen) {
swapcopy16(pXWDCmap[pdefs[i].pixel].green, pdefs[i].green);
}
if (pdefs[i].flags & DoBlue) {
swapcopy16(pXWDCmap[pdefs[i].pixel].blue, pdefs[i].blue);
}
}
}
#ifdef HAVE_MMAP
/* this flushes any changes to the screens out to the mmapped file */
static void
vfbBlockHandler(void *blockData, void *timeout)
{
int i;
for (i = 0; i < vfbNumScreens; i++) {
#ifdef MS_ASYNC
if (-1 == msync((caddr_t) vfbScreens[i].pXWDHeader,
(size_t) vfbScreens[i].sizeInBytes, MS_ASYNC))
#else
/* silly NetBSD and who else? */
if (-1 == msync((caddr_t) vfbScreens[i].pXWDHeader,
(size_t) vfbScreens[i].sizeInBytes))
#endif
{
perror("msync");
ErrorF("msync failed, %s", strerror(errno));
}
}
}
static void
vfbWakeupHandler(void *blockData, int result)
{
}
static void
vfbAllocateMmappedFramebuffer(vfbScreenInfoPtr pvfb)
{
#define DUMMY_BUFFER_SIZE 65536
char dummyBuffer[DUMMY_BUFFER_SIZE];
int currentFileSize, writeThisTime;
snprintf(pvfb->mmap_file, sizeof(pvfb->mmap_file), "%s/Xvfb_screen%d",
pfbdir, (int) (pvfb - vfbScreens));
if (-1 == (pvfb->mmap_fd = open(pvfb->mmap_file, O_CREAT | O_RDWR, 0666))) {
perror("open");
ErrorF("open %s failed, %s", pvfb->mmap_file, strerror(errno));
return;
}
/* Extend the file to be the proper size */
memset(dummyBuffer, 0, DUMMY_BUFFER_SIZE);
for (currentFileSize = 0;
currentFileSize < pvfb->sizeInBytes;
currentFileSize += writeThisTime) {
writeThisTime = min(DUMMY_BUFFER_SIZE,
pvfb->sizeInBytes - currentFileSize);
if (-1 == write(pvfb->mmap_fd, dummyBuffer, writeThisTime)) {
perror("write");
ErrorF("write %s failed, %s", pvfb->mmap_file, strerror(errno));
return;
}
}
/* try to mmap the file */
pvfb->pXWDHeader = (XWDFileHeader *) mmap((caddr_t) NULL, pvfb->sizeInBytes,
PROT_READ | PROT_WRITE,
MAP_FILE | MAP_SHARED,
pvfb->mmap_fd, 0);
if (-1 == (long) pvfb->pXWDHeader) {
perror("mmap");
ErrorF("mmap %s failed, %s", pvfb->mmap_file, strerror(errno));
pvfb->pXWDHeader = NULL;
return;
}
if (!RegisterBlockAndWakeupHandlers(vfbBlockHandler, vfbWakeupHandler,
NULL)) {
pvfb->pXWDHeader = NULL;
}
}
#endif /* HAVE_MMAP */
#ifdef HAS_SHM
static void
vfbAllocateSharedMemoryFramebuffer(vfbScreenInfoPtr pvfb)
{
/* create the shared memory segment */
pvfb->shmid = shmget(IPC_PRIVATE, pvfb->sizeInBytes, IPC_CREAT | 0777);
if (pvfb->shmid < 0) {
perror("shmget");
ErrorF("shmget %d bytes failed, %s", pvfb->sizeInBytes,
strerror(errno));
return;
}
/* try to attach it */
pvfb->pXWDHeader = (XWDFileHeader *) shmat(pvfb->shmid, 0, 0);
if (-1 == (long) pvfb->pXWDHeader) {
perror("shmat");
ErrorF("shmat failed, %s", strerror(errno));
pvfb->pXWDHeader = NULL;
return;
}
ErrorF("screen %d shmid %d\n", (int) (pvfb - vfbScreens), pvfb->shmid);
}
#endif /* HAS_SHM */
static char *
vfbAllocateFramebufferMemory(vfbScreenInfoPtr pvfb)
{
if (pvfb->pfbMemory)
return pvfb->pfbMemory; /* already done */
pvfb->sizeInBytes = pvfb->paddedBytesWidth * pvfb->height;
/* Calculate how many entries in colormap. This is rather bogus, because
* the visuals haven't even been set up yet, but we need to know because we
* have to allocate space in the file for the colormap. The number 10
* below comes from the MAX_PSEUDO_DEPTH define in cfbcmap.c.
*/
if (pvfb->depth <= 10) { /* single index colormaps */
pvfb->ncolors = 1 << pvfb->depth;
}
else { /* decomposed colormaps */
int nplanes_per_color_component = pvfb->depth / 3;
if (pvfb->depth % 3)
nplanes_per_color_component++;
pvfb->ncolors = 1 << nplanes_per_color_component;
}
/* add extra bytes for XWDFileHeader, window name, and colormap */
pvfb->sizeInBytes += SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN +
pvfb->ncolors * SIZEOF(XWDColor);
pvfb->pXWDHeader = NULL;
switch (fbmemtype) {
#ifdef HAVE_MMAP
case MMAPPED_FILE_FB:
vfbAllocateMmappedFramebuffer(pvfb);
break;
#else
case MMAPPED_FILE_FB:
break;
#endif
#ifdef HAS_SHM
case SHARED_MEMORY_FB:
vfbAllocateSharedMemoryFramebuffer(pvfb);
break;
#else
case SHARED_MEMORY_FB:
break;
#endif
case NORMAL_MEMORY_FB:
pvfb->pXWDHeader = (XWDFileHeader *) malloc(pvfb->sizeInBytes);
break;
}
if (pvfb->pXWDHeader) {
pvfb->pXWDCmap = (XWDColor *) ((char *) pvfb->pXWDHeader
+ SIZEOF(XWDheader) +
XWD_WINDOW_NAME_LEN);
pvfb->pfbMemory = (char *) (pvfb->pXWDCmap + pvfb->ncolors);
return pvfb->pfbMemory;
}
return NULL;
}
static void
vfbWriteXWDFileHeader(ScreenPtr pScreen)
{
vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
XWDFileHeader *pXWDHeader = pvfb->pXWDHeader;
char hostname[XWD_WINDOW_NAME_LEN];
unsigned long swaptest = 1;
int i;
needswap = *(char *) &swaptest;
pXWDHeader->header_size =
(char *) pvfb->pXWDCmap - (char *) pvfb->pXWDHeader;
pXWDHeader->file_version = XWD_FILE_VERSION;
pXWDHeader->pixmap_format = ZPixmap;
pXWDHeader->pixmap_depth = pvfb->depth;
pXWDHeader->pixmap_height = pXWDHeader->window_height = pvfb->height;
pXWDHeader->xoffset = 0;
pXWDHeader->byte_order = IMAGE_BYTE_ORDER;
pXWDHeader->bitmap_bit_order = BITMAP_BIT_ORDER;
#ifndef INTERNAL_VS_EXTERNAL_PADDING
pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->width;
pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT;
pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD;
#else
pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->paddedWidth;
pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT_PROTO;
pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD_PROTO;
#endif
pXWDHeader->bits_per_pixel = pvfb->bitsPerPixel;
pXWDHeader->bytes_per_line = pvfb->paddedBytesWidth;
pXWDHeader->ncolors = pvfb->ncolors;
/* visual related fields are written when colormap is installed */
pXWDHeader->window_x = pXWDHeader->window_y = 0;
pXWDHeader->window_bdrwidth = 0;
/* write xwd "window" name: Xvfb hostname:server.screen */
if (-1 == gethostname(hostname, sizeof(hostname)))
hostname[0] = 0;
else
hostname[XWD_WINDOW_NAME_LEN - 1] = 0;
sprintf((char *) (pXWDHeader + 1), "Xvfb %s:%s.%d", hostname, display,
pScreen->myNum);
/* write colormap pixel slot values */
for (i = 0; i < pvfb->ncolors; i++) {
pvfb->pXWDCmap[i].pixel = i;
}
/* byte swap to most significant byte first */
if (needswap) {
SwapLongs((CARD32 *) pXWDHeader, SIZEOF(XWDheader) / 4);
for (i = 0; i < pvfb->ncolors; i++) {
swapl(&pvfb->pXWDCmap[i].pixel);
}
}
}
static Bool
vfbCursorOffScreen(ScreenPtr *ppScreen, int *x, int *y)
{
return FALSE;
}
static void
vfbCrossScreen(ScreenPtr pScreen, Bool entering)
{
}
static miPointerScreenFuncRec vfbPointerCursorFuncs = {
vfbCursorOffScreen,
vfbCrossScreen,
miPointerWarpCursor
};
static Bool
vfbCloseScreen(ScreenPtr pScreen)
{
vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
pScreen->CloseScreen = pvfb->closeScreen;
/*
* fb overwrites miCloseScreen, so do this here
*/
if (pScreen->devPrivate)
(*pScreen->DestroyPixmap) (pScreen->devPrivate);
pScreen->devPrivate = NULL;
#ifdef GLAMOR_HAS_GBM
if (pvfb->fd >= 0) {
if (pvfb->front_bo) {
gbm_bo_destroy(pvfb->front_bo);
pvfb->front_bo = NULL;
}
close(pvfb->fd);
pvfb->fd = -1;
}
#endif
/*
* XXX: There is an existing vfbScreens leak. Should we free() it directly
* or otherwise - input welcome.
*/
return pScreen->CloseScreen(pScreen);
}
#ifdef GLAMOR_HAS_GBM
static Bool
vfbCreateScreenResources(ScreenPtr pScreen)
{
vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
PixmapPtr pixmap;
Bool ret;
pScreen->CreateScreenResources = pvfb->createScreenResources;
ret = pScreen->CreateScreenResources(pScreen);
pScreen->CreateScreenResources = vfbCreateScreenResources;
if (!ret)
return FALSE;
pixmap = pScreen->GetScreenPixmap(pScreen);
/* TODO: add support for modifiers at some point */
if (!glamor_egl_create_textured_pixmap_from_gbm_bo(pixmap, pvfb->front_bo,
FALSE)) {
LogMessage(X_ERROR, "glamor_egl_create_textured_pixmap() failed\n");
/* TODO: plug the leak, aka undo the CreateScreenResources() call above. */
return FALSE;
}
return TRUE;
}
static void
vfbDRIInit(ScreenPtr pScreen)
{
vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
/* TODO: don't hardcode the node name */
const char *node_name = "/dev/dri/renderD128";
const char *error_msg;
pvfb->fd = open(node_name, O_RDWR | O_CLOEXEC);
if (pvfb->fd < 0) {
error_msg = "Failed to open device node";
goto out;
}
if (!glamor_egl_init(pScreen, pvfb->fd)) {
error_msg = "Failed to initialize glamor";
goto close_fd;
}
pvfb->gbm = glamor_egl_get_gbm_device(pScreen);
if (!pvfb->gbm) {
error_msg = "Failed to get gbm device";
goto egl_fini;
}
pvfb->front_bo = gbm_bo_create(pvfb->gbm,
pScreen->width, pScreen->height,
GBM_FORMAT_ARGB8888,
GBM_BO_USE_RENDERING);
if (!pvfb->front_bo) {
error_msg = "Failed to create front buffer";
goto egl_fini;
}
if (!glamor_init(pScreen, GLAMOR_USE_EGL_SCREEN)) {
error_msg = "Failed to initialize glamor at ScreenInit() time";
goto destroy_bo;
}
pvfb->createScreenResources = pScreen->CreateScreenResources;
pScreen->CreateScreenResources = vfbCreateScreenResources;
return;
destroy_bo:
gbm_bo_destroy(pvfb->front_bo);
egl_fini:
/* TODO: There's no glamor_egl_fini just yet */
close_fd:
close(pvfb->fd);
out:
LogMessage(X_ERROR, "%s. Disabling GLAMOR/DRI3.\n", error_msg);
return;
}
#else
static void
vfbDRIInit(ScreenPtr pScreen)
{
}
#endif
static Bool
vfbRROutputValidateMode(ScreenPtr pScreen,
RROutputPtr output,
RRModePtr mode)
{
rrScrPriv(pScreen);
if (pScrPriv->minWidth <= mode->mode.width &&
pScrPriv->maxWidth >= mode->mode.width &&
pScrPriv->minHeight <= mode->mode.height &&
pScrPriv->maxHeight >= mode->mode.height)
return TRUE;
else
return FALSE;
}
static Bool
vfbRRScreenSetSize(ScreenPtr pScreen,
CARD16 width,
CARD16 height,
CARD32 mmWidth,
CARD32 mmHeight)
{
// Prevent screen updates while we change things around
SetRootClip(pScreen, ROOT_CLIP_NONE);
pScreen->width = width;
pScreen->height = height;
pScreen->mmWidth = mmWidth;
pScreen->mmHeight = mmHeight;
// Restore the ability to update screen, now with new dimensions
SetRootClip(pScreen, ROOT_CLIP_FULL);
RRScreenSizeNotify (pScreen);
RRTellChanged(pScreen);
return TRUE;
}
static Bool
vfbRRCrtcSet(ScreenPtr pScreen,
RRCrtcPtr crtc,
RRModePtr mode,
int x,
int y,
Rotation rotation,
int numOutput,
RROutputPtr *outputs)
{
return RRCrtcNotify(crtc, mode, x, y, rotation, NULL, numOutput, outputs);
}
static Bool
vfbRRGetInfo(ScreenPtr pScreen, Rotation *rotations)
{
/* Don't support rotations */
*rotations = RR_Rotate_0;
return TRUE;
}
static Bool
vfbRandRInit(ScreenPtr pScreen)
{
rrScrPrivPtr pScrPriv;
#if RANDR_12_INTERFACE
RRModePtr mode;
RRCrtcPtr crtc;
RROutputPtr output;
xRRModeInfo modeInfo;
char name[64];
#endif
if (!RRScreenInit (pScreen))
return FALSE;
pScrPriv = rrGetScrPriv(pScreen);
pScrPriv->rrGetInfo = vfbRRGetInfo;
#if RANDR_12_INTERFACE
pScrPriv->rrCrtcSet = vfbRRCrtcSet;
pScrPriv->rrScreenSetSize = vfbRRScreenSetSize;
pScrPriv->rrOutputSetProperty = NULL;
#if RANDR_13_INTERFACE
pScrPriv->rrOutputGetProperty = NULL;
#endif
pScrPriv->rrOutputValidateMode = vfbRROutputValidateMode;
pScrPriv->rrModeDestroy = NULL;
RRScreenSetSizeRange (pScreen,
1, 1,
pScreen->width, pScreen->height);
sprintf (name, "%dx%d", pScreen->width, pScreen->height);
memset (&modeInfo, '\0', sizeof (modeInfo));
modeInfo.width = pScreen->width;
modeInfo.height = pScreen->height;
modeInfo.nameLength = strlen (name);
mode = RRModeGet (&modeInfo, name);
if (!mode)
return FALSE;
crtc = RRCrtcCreate (pScreen, NULL);
if (!crtc)
return FALSE;
/* This is to avoid xrandr to complain about the gamma missing */
RRCrtcGammaSetSize (crtc, 256);
output = RROutputCreate (pScreen, "screen", 6, NULL);
if (!output)
return FALSE;
if (!RROutputSetClones (output, NULL, 0))
return FALSE;
if (!RROutputSetModes (output, &mode, 1, 0))
return FALSE;
if (!RROutputSetCrtcs (output, &crtc, 1))
return FALSE;
if (!RROutputSetConnection (output, RR_Connected))
return FALSE;
RRCrtcNotify (crtc, mode, 0, 0, RR_Rotate_0, NULL, 1, &output);
#endif
return TRUE;
}
static Bool
vfbScreenInit(ScreenPtr pScreen, int argc, char **argv)
{
vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
int dpix = monitorResolution, dpiy = monitorResolution;
int ret;
char *pbits;
if (dpix == 0)
dpix = 100;
if (dpiy == 0)
dpiy = 100;
pvfb->paddedBytesWidth = PixmapBytePad(pvfb->width, pvfb->depth);
pvfb->bitsPerPixel = vfbBitsPerPixel(pvfb->depth);
if (pvfb->bitsPerPixel >= 8)
pvfb->paddedWidth = pvfb->paddedBytesWidth / (pvfb->bitsPerPixel / 8);
else
pvfb->paddedWidth = pvfb->paddedBytesWidth * 8;
pbits = vfbAllocateFramebufferMemory(pvfb);
if (!pbits)
return FALSE;
switch (pvfb->depth) {
case 8:
miSetVisualTypesAndMasks(8,
((1 << StaticGray) |
(1 << GrayScale) |
(1 << StaticColor) |
(1 << PseudoColor) |
(1 << TrueColor) |
(1 << DirectColor)), 8, PseudoColor, 0, 0, 0);
break;
case 15:
miSetVisualTypesAndMasks(15,
((1 << TrueColor) |
(1 << DirectColor)),
8, TrueColor, 0x7c00, 0x03e0, 0x001f);
break;
case 16:
miSetVisualTypesAndMasks(16,
((1 << TrueColor) |
(1 << DirectColor)),
8, TrueColor, 0xf800, 0x07e0, 0x001f);
break;
case 24:
miSetVisualTypesAndMasks(24,
((1 << TrueColor) |
(1 << DirectColor)),
8, TrueColor, 0xff0000, 0x00ff00, 0x0000ff);
break;
case 30:
miSetVisualTypesAndMasks(30,
((1 << TrueColor) |
(1 << DirectColor)),
10, TrueColor, 0x3ff00000, 0x000ffc00,
0x000003ff);
break;
default:
return FALSE;
}
miSetPixmapDepths();
ret = fbScreenInit(pScreen, pbits, pvfb->width, pvfb->height,
dpix, dpiy, pvfb->paddedWidth, pvfb->bitsPerPixel);
if (!ret)
return FALSE;
if (Render) {
fbPictureInit(pScreen, 0, 0);
vfbDRIInit(pScreen);
}
if (!vfbRandRInit(pScreen))
return FALSE;
pScreen->InstallColormap = vfbInstallColormap;
pScreen->StoreColors = vfbStoreColors;
miDCInitialize(pScreen, &vfbPointerCursorFuncs);
vfbWriteXWDFileHeader(pScreen);
pScreen->blackPixel = pvfb->blackPixel;
pScreen->whitePixel = pvfb->whitePixel;
ret = fbCreateDefColormap(pScreen);
miSetZeroLineBias(pScreen, pvfb->lineBias);
pvfb->closeScreen = pScreen->CloseScreen;
pScreen->CloseScreen = vfbCloseScreen;
return ret;
} /* end vfbScreenInit */
void
InitOutput(ScreenInfo * screen_info, int argc, char **argv)
{
int i;
int NumFormats = 0;
/* initialize pixmap formats */
/* must have a pixmap depth to match every screen depth */
for (i = 0; i < vfbNumScreens; i++) {
vfbPixmapDepths[vfbScreens[i].depth] = TRUE;
}
/* RENDER needs a good set of pixmaps. */
if (Render) {
vfbPixmapDepths[1] = TRUE;
vfbPixmapDepths[4] = TRUE;
vfbPixmapDepths[8] = TRUE;
#if 0
vfbPixmapDepths[12] = TRUE;
#endif
/* vfbPixmapDepths[15] = TRUE; */
vfbPixmapDepths[16] = TRUE;
vfbPixmapDepths[24] = TRUE;
#if 0
vfbPixmapDepths[30] = TRUE;
#endif
vfbPixmapDepths[32] = TRUE;
}
xorgGlxCreateVendor();
for (i = 1; i <= 32; i++) {
if (vfbPixmapDepths[i]) {
if (NumFormats >= MAXFORMATS)
FatalError("MAXFORMATS is too small for this server\n");
screen_info->formats[NumFormats].depth = i;
screen_info->formats[NumFormats].bitsPerPixel = vfbBitsPerPixel(i);
screen_info->formats[NumFormats].scanlinePad = BITMAP_SCANLINE_PAD;
NumFormats++;
}
}
screen_info->imageByteOrder = IMAGE_BYTE_ORDER;
screen_info->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
screen_info->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
screen_info->bitmapBitOrder = BITMAP_BIT_ORDER;
screen_info->numPixmapFormats = NumFormats;
/* initialize screens */
if (vfbNumScreens < 1) {
vfbScreens = &defaultScreenInfo;
vfbNumScreens = 1;
}
for (i = 0; i < vfbNumScreens; i++) {
if (-1 == AddScreen(vfbScreenInit, argc, argv)) {
FatalError("Couldn't add screen %d", i);
}
}
} /* end InitOutput */
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