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-rw-r--r--src/glx/mini/dri_util.c704
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diff --git a/src/glx/mini/dri_util.c b/src/glx/mini/dri_util.c
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--- a/src/glx/mini/dri_util.c
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@@ -1,704 +0,0 @@
-/**
- * \file dri_util.c
- * \brief DRI utility functions.
- *
- * This module acts as glue between GLX and the actual hardware driver. A DRI
- * driver doesn't really \e have to use any of this - it's optional. But, some
- * useful stuff is done here that otherwise would have to be duplicated in most
- * drivers.
- *
- * Basically, these utility functions take care of some of the dirty details of
- * screen initialization, context creation, context binding, DRM setup, etc.
- *
- * These functions are compiled into each DRI driver so libGL.so knows nothing
- * about them.
- *
- */
-
-#include <assert.h>
-#include <fcntl.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <linux/fb.h>
-#include <linux/vt.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/shm.h>
-
-#include "dri_util.h"
-
-/**
- * \brief Print message to \c stderr if the \c LIBGL_DEBUG environment variable
- * is set.
- *
- * Is called from the drivers.
- *
- * \param f \e printf like format.
- *
- * \internal
- * This function is a wrapper around vfprintf().
- */
-void
-__driUtilMessage(const char *f, ...)
-{
- va_list args;
-
- if (getenv("LIBGL_DEBUG")) {
- fprintf(stderr, "libGL error: \n");
- va_start(args, f);
- vfprintf(stderr, f, args);
- va_end(args);
- fprintf(stderr, "\n");
- }
-}
-
-
-/*****************************************************************/
-/** \name Visual utility functions */
-/*****************************************************************/
-/*@{*/
-
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Context (un)binding functions */
-/*****************************************************************/
-/*@{*/
-
-
-/**
- * \brief Unbind context.
- *
- * \param drawable __DRIdrawable
- * \param context __DRIcontext
- * \param will_rebind not used.
- *
- * \return GL_TRUE on success, or GL_FALSE on failure.
- *
- * \internal
- * This function calls __DriverAPIRec::UnbindContext, and then decrements
- * __DRIdrawablePrivateRec::refcount which must be non-zero for a successful
- * return.
- *
- * While casting the opaque private pointers associated with the parameters into their
- * respective real types it also assures they are not null.
- */
-static GLboolean driUnbindContext(__DRIdrawable *drawable,
- __DRIcontext *context)
-{
- __DRIdrawablePrivate *pdp = (__DRIdrawablePrivate *)drawable;
- __DRIcontextPrivate *pcp = (__DRIcontextPrivate *)context;
- __DRIscreenPrivate *psp;
-
- if (pdp == NULL || pcp == NULL)
- return GL_FALSE;
-
- if (!(psp = (__DRIscreenPrivate *)pdp->driScreenPriv))
- return GL_FALSE;
-
- /* Let driver unbind drawable from context */
- (*psp->DriverAPI.UnbindContext)(pcp);
-
- if (pdp->refcount == 0)
- return GL_FALSE;
-
- --pdp->refcount;
-
- return GL_TRUE;
-}
-
-
-/**
- * \brief Unbind context.
- *
- * \param pDRIScreen __DRIscreen
- * \param drawable __DRIdrawable
- * \param context __DRIcontext
- *
- * \internal
- * This function and increments __DRIdrawablePrivateRec::refcount and calls
- * __DriverAPIRec::MakeCurrent to binds the drawable.
- *
- * While casting the opaque private pointers into their
- * respective real types it also assures they are not null.
- */
-static GLboolean driBindContext(__DRIscreen *screen, __DRIdrawable *drawable,
- __DRIcontext *context)
-{
- __DRIscreenPrivate *psp = (__DRIscreenPrivate *)screen;
- __DRIdrawablePrivate *pdp = (__DRIdrawablePrivate *)drawable;
- __DRIcontextPrivate *pcp = (__DRIcontextPrivate *)context;
-
- if (psp == NULL)
- return GL_FALSE;
-
- if (pdp == NULL || pcp == NULL) {
- (*psp->DriverAPI.MakeCurrent)(0, 0, 0);
- return GL_TRUE;
- }
-
- /* Bind the drawable to the context */
- pcp->driDrawablePriv = pdp;
- pdp->driContextPriv = pcp;
- pdp->refcount++;
-
- /* Call device-specific MakeCurrent */
- (*psp->DriverAPI.MakeCurrent)(pcp, pdp, pdp);
-
- return GL_TRUE;
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Drawable handling functions */
-/*****************************************************************/
-/*@{*/
-
-
-/**
- * \brief Update private drawable information.
- *
- * \param pdp pointer to the private drawable information to update.
- *
- * \internal
- * This function is a no-op. Should never be called but is referenced as an
- * external symbol from client drivers.
- */
-void __driUtilUpdateDrawableInfo(__DRIdrawablePrivate *pdp)
-{
- __DRIscreenPrivate *psp = pdp->driScreenPriv;
-
- pdp->numClipRects = psp->pSAREA->drawableTable[pdp->index].flags ? 1 : 0;
- pdp->lastStamp = *(pdp->pStamp);
-}
-
-
-/**
- * \brief Swap buffers.
- *
- * \param pDRIscreen __DRIscreen
- * \param drawablePrivate opaque pointer to the per-drawable private info.
- *
- * \internal
- * This function calls __DRIdrawablePrivate::swapBuffers.
- *
- * Is called directly from glXSwapBuffers().
- */
-static void driSwapBuffers(__DRIdrawable *drawable)
-{
- __DRIdrawablePrivate *pdp = (__DRIdrawablePrivate *)drawable;
- if (pdp)
- pdp->swapBuffers(pdp);
-}
-
-
-/**
- * \brief Destroy per-drawable private information.
- *
- * \param pDRIscreen __DRIscreen
- * \param drawablePrivate opaque pointer to the per-drawable private info.
- *
- * \internal
- * This function calls __DriverAPIRec::DestroyBuffer on \p drawablePrivate,
- * frees the clip rects if any, and finally frees \p drawablePrivate itself.
- */
-static void driDestroyDrawable(__DRIdrawable *drawable)
-{
- __DRIdrawablePrivate *pdp = (__DRIdrawablePrivate *)drawable;
- __DRIscreenPrivate *psp;
-
- if (pdp) {
- psp = pdp->driScreenPriv;
- (*psp->DriverAPI.DestroyBuffer)(pdp);
- if (pdp->pClipRects)
- free(pdp->pClipRects);
- free(pdp);
- }
-}
-
-
-/**
- * \brief Create the per-drawable private driver information.
- *
- * \param dpy the display handle.
- * \param scrn the screen number.
- * \param draw the GLX drawable info.
- * \param vid visual ID.
- * \param pdraw will receive the drawable dependent methods.
- *
- *
- * \returns a opaque pointer to the per-drawable private info on success, or NULL
- * on failure.
- *
- * \internal
- * This function allocates and fills a __DRIdrawablePrivateRec structure,
- * initializing the invariant window dimensions and clip rects. It obtains the
- * visual config, converts it into a __GLcontextModesRec and passes it to
- * __DriverAPIRec::CreateBuffer to create a buffer.
- */
-static void *driCreateDrawable(__DRIscreen *screen,
- int width, int height, int index,
- const __GLcontextModes *glVisual)
-{
- __DRIscreenPrivate *psp = (__DRIscreenPrivate *)screen;
- __DRIdrawablePrivate *pdp;
-
- if (!psp)
- return NULL;
-
- if (!(pdp = (__DRIdrawablePrivate *)malloc(sizeof(__DRIdrawablePrivate))))
- return NULL;
-
- pdp->index = index;
- pdp->refcount = 0;
- pdp->lastStamp = -1;
- pdp->numBackClipRects = 0;
- pdp->pBackClipRects = NULL;
-
- /* Initialize with the invariant window dimensions and clip rects here.
- */
- pdp->x = 0;
- pdp->y = 0;
- pdp->w = width;
- pdp->h = height;
- pdp->numClipRects = 0;
- pdp->pClipRects = (drm_clip_rect_t *) malloc(sizeof(drm_clip_rect_t));
- (pdp->pClipRects)[0].x1 = 0;
- (pdp->pClipRects)[0].y1 = 0;
- (pdp->pClipRects)[0].x2 = width;
- (pdp->pClipRects)[0].y2 = height;
-
- pdp->driScreenPriv = psp;
- pdp->driContextPriv = 0;
-
- pdp->frontBuffer = psp->pFB;
- pdp->currentBuffer = pdp->frontBuffer;
- pdp->currentPitch = psp->fbStride;
- pdp->backBuffer = psp->pFB + psp->fbStride * psp->fbHeight;
-
- if (!(*psp->DriverAPI.CreateBuffer)(psp, pdp, glVisual, GL_FALSE)) {
- free(pdp);
- return NULL;
- }
-
- pdp->entry.destroyDrawable = driDestroyDrawable;
- pdp->entry.swapBuffers = driSwapBuffers; /* called by glXSwapBuffers() */
- pdp->swapBuffers = psp->DriverAPI.SwapBuffers;
-
- pdp->pStamp = &(psp->pSAREA->drawableTable[pdp->index].stamp);
- return (void *) pdp;
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Context handling functions */
-/*****************************************************************/
-/*@{*/
-
-
-/**
- * \brief Destroy the per-context private information.
- *
- * \param contextPrivate opaque pointer to the per-drawable private info.
- *
- * \internal
- * This function calls __DriverAPIRec::DestroyContext on \p contextPrivate, calls
- * drmDestroyContext(), and finally frees \p contextPrivate.
- */
-static void driDestroyContext(__DRIcontext *context)
-{
- __DRIcontextPrivate *pcp = (__DRIcontextPrivate *)context;
- __DRIscreenPrivate *psp = NULL;
-
- if (pcp) {
- (*pcp->driScreenPriv->DriverAPI.DestroyContext)(pcp);
- psp = pcp->driDrawablePriv->driScreenPriv;
- if (psp->fd) {
- printf(">>> drmDestroyContext(0x%x)\n", (int) pcp->hHWContext);
- drmDestroyContext(psp->fd, pcp->hHWContext);
- }
- free(pcp);
- }
-}
-
-/**
- * \brief Create the per-drawable private driver information.
- *
- * \param dpy the display handle.
- * \param vis the visual information.
- * \param sharedPrivate the shared context dependent methods or NULL if non-existent.
- * \param pctx will receive the context dependent methods.
- *
- * \returns a opaque pointer to the per-context private information on success, or NULL
- * on failure.
- *
- * \internal
- * This function allocates and fills a __DRIcontextPrivateRec structure. It
- * gets the visual, converts it into a __GLcontextModesRec and passes it
- * to __DriverAPIRec::CreateContext to create the context.
- */
-static void *driCreateContext(__DRIscreen *screen,
- const __GLcontextModes *glVisual,
- void *sharedPrivate)
-{
- __DRIscreenPrivate *psp = (__DRIscreenPrivate *)screen;
- __DRIcontextPrivate *pcp;
- __DRIcontextPrivate *pshare = (__DRIcontextPrivate *) sharedPrivate;
- void *shareCtx;
-
- if (!psp)
- return NULL;
-
- if (!(pcp = (__DRIcontextPrivate *)malloc(sizeof(__DRIcontextPrivate))))
- return NULL;
-
- pcp->driScreenPriv = psp;
- pcp->driDrawablePriv = NULL;
-
- if (psp->fd) {
- if (drmCreateContext(psp->fd, &pcp->hHWContext)) {
- fprintf(stderr, ">>> drmCreateContext failed\n");
- free(pcp);
- return NULL;
- }
- }
-
- shareCtx = pshare ? pshare->driverPrivate : NULL;
-
- if (!(*psp->DriverAPI.CreateContext)(glVisual, pcp, shareCtx)) {
- if (psp->fd)
- (void) drmDestroyContext(psp->fd, pcp->hHWContext);
- free(pcp);
- return NULL;
- }
-
- pcp->entry.destroyContext = driDestroyContext;
- pcp->entry.bindContext = driBindContext;
- pcp->entry.unbindContext = driUnbindContext;
-
- return pcp;
-}
-
-/*@}*/
-
-
-/*****************************************************************/
-/** \name Screen handling functions */
-/*****************************************************************/
-/*@{*/
-
-
-/**
- * \brief Destroy the per-screen private information.
- *
- * \param pDRIscreen __DRIscreen
- *
- * \internal
- * This function calls __DriverAPIRec::DestroyScreen on \p screenPrivate, calls
- * drmClose(), and finally frees \p screenPrivate.
- */
-static void driDestroyScreen(__DRIscreen *screen)
-{
- __DRIscreenPrivate *psp = (__DRIscreenPrivate *)screen;
- if (psp) {
- if (psp->DriverAPI.DestroyScreen)
- (*psp->DriverAPI.DestroyScreen)(psp);
-
- if (psp->fd)
- (void)drmClose(psp->fd);
-
- free(psp->pDevPriv);
- free(psp);
- }
-}
-
-
-/**
- * \brief Create the per-screen private information.
- *
- * \param dpy the display handle.
- * \param scrn the screen number.
- * \param psc will receive the screen dependent methods.
- * \param numConfigs number of visuals.
- * \param config visuals.
- * \param driverAPI driver callbacks structure.
- *
- * \return a pointer to the per-screen private information.
- *
- * \internal
- * This function allocates and fills a __DRIscreenPrivateRec structure. It
- * opens the DRM device verifying that the exported version matches the
- * expected. It copies the driver callback functions and calls
- * __DriverAPIRec::InitDriver.
- *
- * If a client maps the framebuffer and SAREA regions.
- */
-__DRIscreenPrivate *
-__driUtilCreateScreen(struct DRIDriverRec *driver,
- struct DRIDriverContextRec *driverContext,
- const struct __DriverAPIRec *driverAPI)
-{
- __DRIscreenPrivate *psp;
-
- if(!(psp = (__DRIscreenPrivate *)malloc(sizeof(__DRIscreenPrivate))))
- return NULL;
-
- psp->fd = drmOpen(NULL, driverContext->pciBusID);
- if (psp->fd < 0) {
- fprintf(stderr, "libGL error: failed to open DRM: %s\n",
- strerror(-psp->fd));
- free(psp);
- return NULL;
- }
-
- {
- drmVersionPtr version = drmGetVersion(psp->fd);
- if (version) {
- psp->drmMajor = version->version_major;
- psp->drmMinor = version->version_minor;
- psp->drmPatch = version->version_patchlevel;
- drmFreeVersion(version);
- }
- else {
- fprintf(stderr, "libGL error: failed to get drm version: %s\n",
- strerror(-psp->fd));
- free(psp);
- return NULL;
- }
- }
-
- /* install driver's callback functions */
- psp->DriverAPI = *driverAPI;
-
- /*
- * 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.
- */
- psp->fbOrigin = driverContext->shared.fbOrigin;
- psp->fbSize = driverContext->shared.fbSize;
- psp->fbStride = driverContext->shared.fbStride;
- psp->devPrivSize = driverContext->driverClientMsgSize;
- psp->pDevPriv = driverContext->driverClientMsg;
- psp->fbWidth = driverContext->shared.virtualWidth;
- psp->fbHeight = driverContext->shared.virtualHeight;
- psp->fbBPP = driverContext->bpp;
-
- if ((driverContext->FBAddress != NULL) && (driverContext->pSAREA != NULL)) {
- /* Already mapped in server */
- psp->pFB = driverContext->FBAddress;
- psp->pSAREA = driverContext->pSAREA;
- } else {
- /*
- * Map the framebuffer region.
- */
- if (drmMap(psp->fd, driverContext->shared.hFrameBuffer, psp->fbSize,
- (drmAddressPtr)&psp->pFB)) {
- fprintf(stderr, "libGL error: drmMap of framebuffer failed\n");
- (void)drmClose(psp->fd);
- free(psp);
- return NULL;
- }
-
- /*
- * Map the SAREA region. Further mmap regions may be setup in
- * each DRI driver's "createScreen" function.
- */
- if (drmMap(psp->fd, driverContext->shared.hSAREA,
- driverContext->shared.SAREASize,
- (drmAddressPtr)&psp->pSAREA)) {
- fprintf(stderr, "libGL error: drmMap of sarea failed\n");
- (void)drmUnmap((drmAddress)psp->pFB, psp->fbSize);
- (void)drmClose(psp->fd);
- free(psp);
- return NULL;
- }
-
-#ifdef _EMBEDDED
- mprotect(psp->pSAREA, driverContext->shared.SAREASize, PROT_READ);
-#endif
- }
-
-
- /* Initialize the screen specific GLX driver */
- if (psp->DriverAPI.InitDriver) {
- if (!(*psp->DriverAPI.InitDriver)(psp)) {
- fprintf(stderr, "libGL error: InitDriver failed\n");
- free(psp->pDevPriv);
- (void)drmClose(psp->fd);
- free(psp);
- return NULL;
- }
- }
-
- psp->entry.destroyScreen = driDestroyScreen;
- psp->entry.createContext = driCreateContext;
- psp->entry.createDrawable = driCreateDrawable;
-
- return psp;
-}
-
-
-
-/**
- * \brief Create the per-screen private information.
- *
- * Version for drivers without a DRM module.
- *
- * \param dpy the display handle.
- * \param scrn the screen number.
- * \param numConfigs number of visuals.
- * \param config visuals.
- * \param driverAPI driver callbacks structure.
- *
- * \internal
- * Same as __driUtilCreateScreen() but without opening the DRM device.
- */
-__DRIscreenPrivate *
-__driUtilCreateScreenNoDRM(struct DRIDriverRec *driver,
- struct DRIDriverContextRec *driverContext,
- const struct __DriverAPIRec *driverAPI)
-{
- __DRIscreenPrivate *psp;
-
- psp = (__DRIscreenPrivate *)calloc(1, sizeof(__DRIscreenPrivate));
- if (!psp)
- return NULL;
-
- psp->ddxMajor = 4;
- psp->ddxMinor = 0;
- psp->ddxPatch = 1;
- psp->driMajor = 4;
- psp->driMinor = 1;
- psp->driPatch = 0;
- psp->fd = 0;
-
- psp->fbOrigin = driverContext->shared.fbOrigin;
- psp->fbSize = driverContext->shared.fbSize;
- psp->fbStride = driverContext->shared.fbStride;
- psp->devPrivSize = driverContext->driverClientMsgSize;
- psp->pDevPriv = driverContext->driverClientMsg;
- psp->fbWidth = driverContext->shared.virtualWidth;
- psp->fbHeight = driverContext->shared.virtualHeight;
- psp->fbBPP = driverContext->bpp;
-
- psp->pFB = driverContext->FBAddress;
-
- /* install driver's callback functions */
- psp->DriverAPI = *driverAPI;
-
- if ((driverContext->FBAddress != NULL) && (driverContext->pSAREA != NULL)) {
- /* Already mapped in server */
- psp->pFB = driverContext->FBAddress;
- psp->pSAREA = driverContext->pSAREA;
- } else {
- int id;
- psp->fd = open("/dev/mem", O_RDWR, 0);
- /*
- * Map the framebuffer region.
- */
- if (drmMap(psp->fd, driverContext->shared.hFrameBuffer, psp->fbSize,
- (drmAddressPtr)&psp->pFB)) {
- fprintf(stderr, "libGL error: drmMap of framebuffer failed\n");
- (void)drmClose(psp->fd);
- free(psp);
- return NULL;
- }
- driverContext->FBAddress = psp->pFB;
-
- /*
- * Map the SAREA region. Non-DRM drivers use a shmem SAREA
- */
- id = shmget(driverContext->shared.hSAREA, driverContext->shared.SAREASize, 0);
- driverContext->pSAREA = shmat(id, NULL, 0);
- if (!driverContext->pSAREA) {
- fprintf(stderr, "libGL error: shmget of sarea failed\n");
- (void)drmUnmap((drmAddress)psp->pFB, psp->fbSize);
- (void)drmClose(psp->fd);
- free(psp);
- return NULL;
- }
-
- close(psp->fd);
- psp->fd = 0;
- }
-
- /* Initialize the screen specific GLX driver */
- if (psp->DriverAPI.InitDriver) {
- if (!(*psp->DriverAPI.InitDriver)(psp)) {
- fprintf(stderr, "libGL error: InitDriver failed\n");
- free(psp->pDevPriv);
- free(psp);
- return NULL;
- }
- }
-
- psp->entry.destroyScreen = driDestroyScreen;
- psp->entry.createContext = driCreateContext;
- psp->entry.createDrawable = driCreateDrawable;
-
- return psp;
-}
-
-/**
- * Calculate amount of swap interval used between GLX buffer swaps.
- *
- * The usage value, on the range [0,max], is the fraction of total swap
- * interval time used between GLX buffer swaps is calculated.
- *
- * \f$p = t_d / (i * t_r)\f$
- *
- * Where \f$t_d\$f is the time since the last GLX buffer swap, \f$i\f$ is the
- * swap interval (as set by \c glXSwapIntervalSGI), and \f$t_r\f$ time
- * required for a single vertical refresh period (as returned by \c
- * glXGetMscRateOML).
- *
- * See the documentation for the GLX_MESA_swap_frame_usage extension for more
- * details.
- *
- * \param dPriv Pointer to the private drawable structure.
- * \return If less than a single swap interval time period was required
- * between GLX buffer swaps, a number greater than 0 and less than
- * 1.0 is returned. If exactly one swap interval time period is
- * required, 1.0 is returned, and if more than one is required then
- * a number greater than 1.0 will be returned.
- *
- * \sa glXSwapIntervalSGI(), glXGetMscRateOML().
- */
-float
-driCalculateSwapUsage( __DRIdrawablePrivate *dPriv, int64_t last_swap_ust,
- int64_t current_ust )
-{
- return 0.0f;
-}
-
-/**
- * Compare the current GLX API version with a driver supplied required version.
- *
- * The minimum required version is compared with the API version exported by
- * the \c __glXGetInternalVersion function (in libGL.so).
- *
- * \param required_version Minimum required internal GLX API version.
- * \return A tri-value return, as from strcmp is returned. A value less
- * than, equal to, or greater than zero will be returned if the
- * internal GLX API version is less than, equal to, or greater
- * than \c required_version.
- *
- * \sa __glXGetInternalVersion().
- */
-int driCompareGLXAPIVersion( GLuint required_version )
-{
- return 0;
-}
-
-/*@}*/
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