diff options
Diffstat (limited to 'src/egl/drivers/xdri/glxinit.c')
| -rw-r--r-- | src/egl/drivers/xdri/glxinit.c | 626 |
1 files changed, 626 insertions, 0 deletions
diff --git a/src/egl/drivers/xdri/glxinit.c b/src/egl/drivers/xdri/glxinit.c new file mode 100644 index 0000000000..7775009394 --- /dev/null +++ b/src/egl/drivers/xdri/glxinit.c @@ -0,0 +1,626 @@ +/** + * GLX initialization. Code based on glxext.c, glx_query.c, and + * glcontextmodes.c under src/glx/x11/. The major difference is that no DRI + * related code here. + * + */ + +#include <assert.h> +#include <X11/Xlib.h> +#include <X11/Xproto.h> +#include <X11/extensions/Xext.h> +#include <X11/extensions/extutil.h> +#include <sys/time.h> + +#include "glxinit.h" + +typedef struct GLXGenericGetString +{ + CARD8 reqType; + CARD8 glxCode; + CARD16 length B16; + CARD32 for_whom B32; + CARD32 name B32; +} xGLXGenericGetStringReq; + +#define sz_xGLXGenericGetStringReq 12 +#define X_GLXGenericGetString 0 + +/* Extension required boiler plate */ + +static char *__glXExtensionName = GLX_EXTENSION_NAME; +static XExtensionInfo *__glXExtensionInfo = NULL; + +static /* const */ XExtensionHooks __glXExtensionHooks = { NULL }; +static +XEXT_GENERATE_FIND_DISPLAY(__glXFindDisplay, __glXExtensionInfo, + __glXExtensionName, &__glXExtensionHooks, + __GLX_NUMBER_EVENTS, NULL) + +static GLint +_gl_convert_from_x_visual_type(int visualType) +{ +#define NUM_VISUAL_TYPES 6 + static const int glx_visual_types[NUM_VISUAL_TYPES] = { + GLX_STATIC_GRAY, GLX_GRAY_SCALE, + GLX_STATIC_COLOR, GLX_PSEUDO_COLOR, + GLX_TRUE_COLOR, GLX_DIRECT_COLOR + }; + + return ((unsigned) visualType < NUM_VISUAL_TYPES) + ? glx_visual_types[visualType] : GLX_NONE; +} + +static __GLcontextModes * +_gl_context_modes_create(unsigned count, size_t minimum_size) +{ + const size_t size = (minimum_size > sizeof(__GLcontextModes)) + ? minimum_size : sizeof(__GLcontextModes); + __GLcontextModes *base = NULL; + __GLcontextModes **next; + unsigned i; + + next = &base; + for (i = 0; i < count; i++) { + *next = (__GLcontextModes *) Xmalloc(size); + if (*next == NULL) { + _gl_context_modes_destroy(base); + base = NULL; + break; + } + + memset(*next, 0, size); + (*next)->visualID = GLX_DONT_CARE; + (*next)->visualType = GLX_DONT_CARE; + (*next)->visualRating = GLX_NONE; + (*next)->transparentPixel = GLX_NONE; + (*next)->transparentRed = GLX_DONT_CARE; + (*next)->transparentGreen = GLX_DONT_CARE; + (*next)->transparentBlue = GLX_DONT_CARE; + (*next)->transparentAlpha = GLX_DONT_CARE; + (*next)->transparentIndex = GLX_DONT_CARE; + (*next)->xRenderable = GLX_DONT_CARE; + (*next)->fbconfigID = GLX_DONT_CARE; + (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML; + (*next)->bindToTextureRgb = GLX_DONT_CARE; + (*next)->bindToTextureRgba = GLX_DONT_CARE; + (*next)->bindToMipmapTexture = GLX_DONT_CARE; + (*next)->bindToTextureTargets = GLX_DONT_CARE; + (*next)->yInverted = GLX_DONT_CARE; + + next = &((*next)->next); + } + + return base; +} + +_X_HIDDEN void +_gl_context_modes_destroy(__GLcontextModes * modes) +{ + while (modes != NULL) { + __GLcontextModes *const next = modes->next; + + Xfree(modes); + modes = next; + } +} + +_X_HIDDEN char * +__glXQueryServerString(Display * dpy, int opcode, CARD32 screen, CARD32 name) +{ + xGLXGenericGetStringReq *req; + xGLXSingleReply reply; + int length; + int numbytes; + char *buf; + CARD32 for_whom = screen; + CARD32 glxCode = X_GLXQueryServerString; + + + LockDisplay(dpy); + + + /* All of the GLX protocol requests for getting a string from the server + * look the same. The exact meaning of the for_whom field is usually + * either the screen number (for glXQueryServerString) or the context tag + * (for GLXSingle). + */ + + GetReq(GLXGenericGetString, req); + req->reqType = opcode; + req->glxCode = glxCode; + req->for_whom = for_whom; + req->name = name; + + _XReply(dpy, (xReply *) & reply, 0, False); + + length = reply.length * 4; + numbytes = reply.size; + + buf = (char *) Xmalloc(numbytes); + if (buf != NULL) { + _XRead(dpy, buf, numbytes); + length -= numbytes; + } + + _XEatData(dpy, length); + + UnlockDisplay(dpy); + SyncHandle(); + + return buf; +} + +/************************************************************************/ +/* +** Free the per screen configs data as well as the array of +** __glXScreenConfigs. +*/ +static void +FreeScreenConfigs(__GLXdisplayPrivate * priv) +{ + __GLXscreenConfigs *psc; + GLint i, screens; + + /* Free screen configuration information */ + psc = priv->screenConfigs; + screens = ScreenCount(priv->dpy); + for (i = 0; i < screens; i++, psc++) { + if (psc->configs) { + _gl_context_modes_destroy(psc->configs); + psc->configs = NULL; /* NOTE: just for paranoia */ + } + if (psc->visuals) { + _gl_context_modes_destroy(psc->visuals); + psc->visuals = NULL; /* NOTE: just for paranoia */ + } + Xfree((char *) psc->serverGLXexts); + } + XFree((char *) priv->screenConfigs); + priv->screenConfigs = NULL; +} + +/************************************************************************/ + +/* +** Query the version of the GLX extension. This procedure works even if +** the client extension is not completely set up. +*/ +static Bool +QueryVersion(Display * dpy, int opcode, int *major, int *minor) +{ + xGLXQueryVersionReq *req; + xGLXQueryVersionReply reply; + + /* Send the glXQueryVersion request */ + LockDisplay(dpy); + GetReq(GLXQueryVersion, req); + req->reqType = opcode; + req->glxCode = X_GLXQueryVersion; + req->majorVersion = GLX_MAJOR_VERSION; + req->minorVersion = GLX_MINOR_VERSION; + _XReply(dpy, (xReply *) & reply, 0, False); + UnlockDisplay(dpy); + SyncHandle(); + + if (reply.majorVersion != GLX_MAJOR_VERSION) { + /* + ** The server does not support the same major release as this + ** client. + */ + return GL_FALSE; + } + *major = reply.majorVersion; + *minor = min(reply.minorVersion, GLX_MINOR_VERSION); + return GL_TRUE; +} + +_X_HIDDEN void +__glXInitializeVisualConfigFromTags(__GLcontextModes * config, int count, + const INT32 * bp, Bool tagged_only, + Bool fbconfig_style_tags) +{ + int i; + + if (!tagged_only) { + /* Copy in the first set of properties */ + config->visualID = *bp++; + + config->visualType = _gl_convert_from_x_visual_type(*bp++); + + config->rgbMode = *bp++; + + config->redBits = *bp++; + config->greenBits = *bp++; + config->blueBits = *bp++; + config->alphaBits = *bp++; + config->accumRedBits = *bp++; + config->accumGreenBits = *bp++; + config->accumBlueBits = *bp++; + config->accumAlphaBits = *bp++; + + config->doubleBufferMode = *bp++; + config->stereoMode = *bp++; + + config->rgbBits = *bp++; + config->depthBits = *bp++; + config->stencilBits = *bp++; + config->numAuxBuffers = *bp++; + config->level = *bp++; + + count -= __GLX_MIN_CONFIG_PROPS; + } + + /* + ** Additional properties may be in a list at the end + ** of the reply. They are in pairs of property type + ** and property value. + */ + +#define FETCH_OR_SET(tag) \ + config-> tag = ( fbconfig_style_tags ) ? *bp++ : 1 + + for (i = 0; i < count; i += 2) { + switch (*bp++) { + case GLX_RGBA: + FETCH_OR_SET(rgbMode); + break; + case GLX_BUFFER_SIZE: + config->rgbBits = *bp++; + break; + case GLX_LEVEL: + config->level = *bp++; + break; + case GLX_DOUBLEBUFFER: + FETCH_OR_SET(doubleBufferMode); + break; + case GLX_STEREO: + FETCH_OR_SET(stereoMode); + break; + case GLX_AUX_BUFFERS: + config->numAuxBuffers = *bp++; + break; + case GLX_RED_SIZE: + config->redBits = *bp++; + break; + case GLX_GREEN_SIZE: + config->greenBits = *bp++; + break; + case GLX_BLUE_SIZE: + config->blueBits = *bp++; + break; + case GLX_ALPHA_SIZE: + config->alphaBits = *bp++; + break; + case GLX_DEPTH_SIZE: + config->depthBits = *bp++; + break; + case GLX_STENCIL_SIZE: + config->stencilBits = *bp++; + break; + case GLX_ACCUM_RED_SIZE: + config->accumRedBits = *bp++; + break; + case GLX_ACCUM_GREEN_SIZE: + config->accumGreenBits = *bp++; + break; + case GLX_ACCUM_BLUE_SIZE: + config->accumBlueBits = *bp++; + break; + case GLX_ACCUM_ALPHA_SIZE: + config->accumAlphaBits = *bp++; + break; + case GLX_VISUAL_CAVEAT_EXT: + config->visualRating = *bp++; + break; + case GLX_X_VISUAL_TYPE: + config->visualType = *bp++; + break; + case GLX_TRANSPARENT_TYPE: + config->transparentPixel = *bp++; + break; + case GLX_TRANSPARENT_INDEX_VALUE: + config->transparentIndex = *bp++; + break; + case GLX_TRANSPARENT_RED_VALUE: + config->transparentRed = *bp++; + break; + case GLX_TRANSPARENT_GREEN_VALUE: + config->transparentGreen = *bp++; + break; + case GLX_TRANSPARENT_BLUE_VALUE: + config->transparentBlue = *bp++; + break; + case GLX_TRANSPARENT_ALPHA_VALUE: + config->transparentAlpha = *bp++; + break; + case GLX_VISUAL_ID: + config->visualID = *bp++; + break; + case GLX_DRAWABLE_TYPE: + config->drawableType = *bp++; + break; + case GLX_RENDER_TYPE: + config->renderType = *bp++; + break; + case GLX_X_RENDERABLE: + config->xRenderable = *bp++; + break; + case GLX_FBCONFIG_ID: + config->fbconfigID = *bp++; + break; + case GLX_MAX_PBUFFER_WIDTH: + config->maxPbufferWidth = *bp++; + break; + case GLX_MAX_PBUFFER_HEIGHT: + config->maxPbufferHeight = *bp++; + break; + case GLX_MAX_PBUFFER_PIXELS: + config->maxPbufferPixels = *bp++; + break; + case GLX_OPTIMAL_PBUFFER_WIDTH_SGIX: + config->optimalPbufferWidth = *bp++; + break; + case GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX: + config->optimalPbufferHeight = *bp++; + break; + case GLX_VISUAL_SELECT_GROUP_SGIX: + config->visualSelectGroup = *bp++; + break; + case GLX_SWAP_METHOD_OML: + config->swapMethod = *bp++; + break; + case GLX_SAMPLE_BUFFERS_SGIS: + config->sampleBuffers = *bp++; + break; + case GLX_SAMPLES_SGIS: + config->samples = *bp++; + break; + case GLX_BIND_TO_TEXTURE_RGB_EXT: + config->bindToTextureRgb = *bp++; + break; + case GLX_BIND_TO_TEXTURE_RGBA_EXT: + config->bindToTextureRgba = *bp++; + break; + case GLX_BIND_TO_MIPMAP_TEXTURE_EXT: + config->bindToMipmapTexture = *bp++; + break; + case GLX_BIND_TO_TEXTURE_TARGETS_EXT: + config->bindToTextureTargets = *bp++; + break; + case GLX_Y_INVERTED_EXT: + config->yInverted = *bp++; + break; + case None: + i = count; + break; + default: + break; + } + } + + config->renderType = + (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT; + + config->haveAccumBuffer = ((config->accumRedBits + + config->accumGreenBits + + config->accumBlueBits + + config->accumAlphaBits) > 0); + config->haveDepthBuffer = (config->depthBits > 0); + config->haveStencilBuffer = (config->stencilBits > 0); +} + +static __GLcontextModes * +createConfigsFromProperties(Display * dpy, int nvisuals, int nprops, + int screen, GLboolean tagged_only) +{ + INT32 buf[__GLX_TOTAL_CONFIG], *props; + unsigned prop_size; + __GLcontextModes *modes, *m; + int i; + + if (nprops == 0) + return NULL; + + /* FIXME: Is the __GLX_MIN_CONFIG_PROPS test correct for FBconfigs? */ + + /* Check number of properties */ + if (nprops < __GLX_MIN_CONFIG_PROPS || nprops > __GLX_MAX_CONFIG_PROPS) + return NULL; + + /* Allocate memory for our config structure */ + modes = _gl_context_modes_create(nvisuals, sizeof(__GLcontextModes)); + if (!modes) + return NULL; + + prop_size = nprops * __GLX_SIZE_INT32; + if (prop_size <= sizeof(buf)) + props = buf; + else + props = Xmalloc(prop_size); + + /* Read each config structure and convert it into our format */ + m = modes; + for (i = 0; i < nvisuals; i++) { + _XRead(dpy, (char *) props, prop_size); + /* Older X servers don't send this so we default it here. */ + m->drawableType = GLX_WINDOW_BIT; + __glXInitializeVisualConfigFromTags(m, nprops, props, + tagged_only, GL_TRUE); + m->screen = screen; + m = m->next; + } + + if (props != buf) + Xfree(props); + + return modes; +} + +static GLboolean +getVisualConfigs(Display * dpy, __GLXdisplayPrivate * priv, int screen) +{ + xGLXGetVisualConfigsReq *req; + __GLXscreenConfigs *psc; + xGLXGetVisualConfigsReply reply; + + LockDisplay(dpy); + + psc = priv->screenConfigs + screen; + psc->visuals = NULL; + GetReq(GLXGetVisualConfigs, req); + req->reqType = priv->majorOpcode; + req->glxCode = X_GLXGetVisualConfigs; + req->screen = screen; + + if (!_XReply(dpy, (xReply *) & reply, 0, False)) + goto out; + + psc->visuals = createConfigsFromProperties(dpy, + reply.numVisuals, + reply.numProps, + screen, GL_FALSE); + + out: + UnlockDisplay(dpy); + return psc->visuals != NULL; +} + +static GLboolean +getFBConfigs(Display * dpy, __GLXdisplayPrivate * priv, int screen) +{ + xGLXGetFBConfigsReq *fb_req; + xGLXGetFBConfigsSGIXReq *sgi_req; + xGLXVendorPrivateWithReplyReq *vpreq; + xGLXGetFBConfigsReply reply; + __GLXscreenConfigs *psc; + + psc = priv->screenConfigs + screen; + psc->serverGLXexts = + __glXQueryServerString(dpy, priv->majorOpcode, screen, GLX_EXTENSIONS); + + LockDisplay(dpy); + + psc->configs = NULL; + if (atof(priv->serverGLXversion) >= 1.3) { + GetReq(GLXGetFBConfigs, fb_req); + fb_req->reqType = priv->majorOpcode; + fb_req->glxCode = X_GLXGetFBConfigs; + fb_req->screen = screen; + } + else if (strstr(psc->serverGLXexts, "GLX_SGIX_fbconfig") != NULL) { + GetReqExtra(GLXVendorPrivateWithReply, + sz_xGLXGetFBConfigsSGIXReq + + sz_xGLXVendorPrivateWithReplyReq, vpreq); + sgi_req = (xGLXGetFBConfigsSGIXReq *) vpreq; + sgi_req->reqType = priv->majorOpcode; + sgi_req->glxCode = X_GLXVendorPrivateWithReply; + sgi_req->vendorCode = X_GLXvop_GetFBConfigsSGIX; + sgi_req->screen = screen; + } + else + goto out; + + if (!_XReply(dpy, (xReply *) & reply, 0, False)) + goto out; + + psc->configs = createConfigsFromProperties(dpy, + reply.numFBConfigs, + reply.numAttribs * 2, + screen, GL_TRUE); + + out: + UnlockDisplay(dpy); + return psc->configs != NULL; +} + +static GLboolean +AllocAndFetchScreenConfigs(Display * dpy, __GLXdisplayPrivate * priv) +{ + __GLXscreenConfigs *psc; + GLint i, screens; + + /* + ** First allocate memory for the array of per screen configs. + */ + screens = ScreenCount(dpy); + psc = (__GLXscreenConfigs *) Xmalloc(screens * sizeof(__GLXscreenConfigs)); + if (!psc) { + return GL_FALSE; + } + memset(psc, 0, screens * sizeof(__GLXscreenConfigs)); + priv->screenConfigs = psc; + + priv->serverGLXversion = + __glXQueryServerString(dpy, priv->majorOpcode, 0, GLX_VERSION); + if (priv->serverGLXversion == NULL) { + FreeScreenConfigs(priv); + return GL_FALSE; + } + + for (i = 0; i < screens; i++, psc++) { + getFBConfigs(dpy, priv, i); + getVisualConfigs(dpy, priv, i); + psc->scr = i; + psc->dpy = dpy; + } + + SyncHandle(); + + return GL_TRUE; +} + +_X_HIDDEN void +__glXRelease(__GLXdisplayPrivate *dpyPriv) +{ + FreeScreenConfigs(dpyPriv); + + if (dpyPriv->serverGLXvendor) { + Xfree((char *) dpyPriv->serverGLXvendor); + dpyPriv->serverGLXvendor = NULL; + } + if (dpyPriv->serverGLXversion) { + Xfree((char *) dpyPriv->serverGLXversion); + dpyPriv->serverGLXversion = NULL; + } + + Xfree(dpyPriv); +} + +_X_HIDDEN __GLXdisplayPrivate * +__glXInitialize(Display * dpy) +{ + XExtDisplayInfo *info = __glXFindDisplay(dpy); + __GLXdisplayPrivate *dpyPriv; + int major, minor; + + if (!XextHasExtension(info)) + return NULL; + + /* See if the versions are compatible */ + if (!QueryVersion(dpy, info->codes->major_opcode, &major, &minor)) + return NULL; + + dpyPriv = (__GLXdisplayPrivate *) Xcalloc(1, sizeof(__GLXdisplayPrivate)); + if (!dpyPriv) + return NULL; + + /* + ** Init the display private and then read in the screen config + ** structures from the server. + */ + dpyPriv->majorOpcode = info->codes->major_opcode; + dpyPriv->majorVersion = major; + dpyPriv->minorVersion = minor; + dpyPriv->dpy = dpy; + + dpyPriv->serverGLXvendor = NULL; + dpyPriv->serverGLXversion = NULL; + + if (!AllocAndFetchScreenConfigs(dpy, dpyPriv)) { + Xfree(dpyPriv); + return NULL; + } + + return dpyPriv; +} |