summaryrefslogtreecommitdiff
path: root/src/glx/indirect_glx.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/glx/indirect_glx.c')
-rw-r--r--src/glx/indirect_glx.c456
1 files changed, 456 insertions, 0 deletions
diff --git a/src/glx/indirect_glx.c b/src/glx/indirect_glx.c
new file mode 100644
index 0000000000..f0598409cd
--- /dev/null
+++ b/src/glx/indirect_glx.c
@@ -0,0 +1,456 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Soft-
+ * ware"), to deal in the Software without restriction, including without
+ * limitation the rights to use, copy, modify, merge, publish, distribute,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, provided that the above copyright
+ * notice(s) and this permission notice appear in all copies of the Soft-
+ * ware and that both the above copyright notice(s) and this permission
+ * notice appear in supporting documentation.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+ * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
+ * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
+ * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
+ * QUENTIAL 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 PERFOR-
+ * MANCE OF THIS SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization of
+ * the copyright holder.
+ *
+ * Authors:
+ * Kristian Høgsberg (krh@bitplanet.net)
+ */
+
+#include "glapi.h"
+#include "glxclient.h"
+
+extern struct _glapi_table *__glXNewIndirectAPI(void);
+
+/*
+** All indirect rendering contexts will share the same indirect dispatch table.
+*/
+static struct _glapi_table *IndirectAPI = NULL;
+
+static void
+indirect_destroy_context(struct glx_context *gc)
+{
+ if (!gc->imported && gc->xid)
+ glx_send_destroy_context(gc->psc->dpy, gc->xid);
+
+ __glXFreeVertexArrayState(gc);
+
+ if (gc->vendor)
+ XFree((char *) gc->vendor);
+ if (gc->renderer)
+ XFree((char *) gc->renderer);
+ if (gc->version)
+ XFree((char *) gc->version);
+ if (gc->extensions)
+ XFree((char *) gc->extensions);
+ __glFreeAttributeState(gc);
+ XFree((char *) gc->buf);
+ Xfree((char *) gc->client_state_private);
+ XFree((char *) gc);
+}
+
+static Bool
+SendMakeCurrentRequest(Display * dpy, CARD8 opcode,
+ GLXContextID gc_id, GLXContextTag gc_tag,
+ GLXDrawable draw, GLXDrawable read,
+ xGLXMakeCurrentReply * reply)
+{
+ Bool ret;
+
+ LockDisplay(dpy);
+
+ if (draw == read) {
+ xGLXMakeCurrentReq *req;
+
+ GetReq(GLXMakeCurrent, req);
+ req->reqType = opcode;
+ req->glxCode = X_GLXMakeCurrent;
+ req->drawable = draw;
+ req->context = gc_id;
+ req->oldContextTag = gc_tag;
+ }
+ else {
+ struct glx_display *priv = __glXInitialize(dpy);
+
+ /* If the server can support the GLX 1.3 version, we should
+ * perfer that. Not only that, some servers support GLX 1.3 but
+ * not the SGI extension.
+ */
+
+ if ((priv->majorVersion > 1) || (priv->minorVersion >= 3)) {
+ xGLXMakeContextCurrentReq *req;
+
+ GetReq(GLXMakeContextCurrent, req);
+ req->reqType = opcode;
+ req->glxCode = X_GLXMakeContextCurrent;
+ req->drawable = draw;
+ req->readdrawable = read;
+ req->context = gc_id;
+ req->oldContextTag = gc_tag;
+ }
+ else {
+ xGLXVendorPrivateWithReplyReq *vpreq;
+ xGLXMakeCurrentReadSGIReq *req;
+
+ GetReqExtra(GLXVendorPrivateWithReply,
+ sz_xGLXMakeCurrentReadSGIReq -
+ sz_xGLXVendorPrivateWithReplyReq, vpreq);
+ req = (xGLXMakeCurrentReadSGIReq *) vpreq;
+ req->reqType = opcode;
+ req->glxCode = X_GLXVendorPrivateWithReply;
+ req->vendorCode = X_GLXvop_MakeCurrentReadSGI;
+ req->drawable = draw;
+ req->readable = read;
+ req->context = gc_id;
+ req->oldContextTag = gc_tag;
+ }
+ }
+
+ ret = _XReply(dpy, (xReply *) reply, 0, False);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return ret;
+}
+
+static int
+indirect_bind_context(struct glx_context *gc, struct glx_context *old,
+ GLXDrawable draw, GLXDrawable read)
+{
+ xGLXMakeCurrentReply reply;
+ GLXContextTag tag;
+ __GLXattribute *state;
+ Display *dpy = gc->psc->dpy;
+ int opcode = __glXSetupForCommand(dpy);
+
+ if (old != &dummyContext && !old->isDirect && old->psc->dpy == dpy)
+ tag = old->currentContextTag;
+ else
+ tag = None;
+
+ SendMakeCurrentRequest(dpy, opcode, gc->xid, tag, draw, read, &reply);
+
+ if (!IndirectAPI)
+ IndirectAPI = __glXNewIndirectAPI();
+ _glapi_set_dispatch(IndirectAPI);
+
+ gc->currentContextTag = reply.contextTag;
+ state = gc->client_state_private;
+ if (state->array_state == NULL) {
+ glGetString(GL_EXTENSIONS);
+ glGetString(GL_VERSION);
+ __glXInitVertexArrayState(gc);
+ }
+
+ return Success;
+}
+
+static void
+indirect_unbind_context(struct glx_context *gc, struct glx_context *new)
+{
+ Display *dpy = gc->psc->dpy;
+ int opcode = __glXSetupForCommand(dpy);
+ xGLXMakeCurrentReply reply;
+
+ /* We are either switching to no context, away from a indirect
+ * context to a direct context or from one dpy to another and have
+ * to send a request to the dpy to unbind the previous context.
+ */
+ if (!new || new->isDirect || new->psc->dpy != dpy)
+ SendMakeCurrentRequest(dpy, opcode, None,
+ gc->currentContextTag, None, None, &reply);
+ gc->currentContextTag = 0;
+}
+
+static void
+indirect_wait_gl(struct glx_context *gc)
+{
+ xGLXWaitGLReq *req;
+ Display *dpy = gc->currentDpy;
+
+ /* Flush any pending commands out */
+ __glXFlushRenderBuffer(gc, gc->pc);
+
+ /* Send the glXWaitGL request */
+ LockDisplay(dpy);
+ GetReq(GLXWaitGL, req);
+ req->reqType = gc->majorOpcode;
+ req->glxCode = X_GLXWaitGL;
+ req->contextTag = gc->currentContextTag;
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+static void
+indirect_wait_x(struct glx_context *gc)
+{
+ xGLXWaitXReq *req;
+ Display *dpy = gc->currentDpy;
+
+ /* Flush any pending commands out */
+ __glXFlushRenderBuffer(gc, gc->pc);
+
+ LockDisplay(dpy);
+ GetReq(GLXWaitX, req);
+ req->reqType = gc->majorOpcode;
+ req->glxCode = X_GLXWaitX;
+ req->contextTag = gc->currentContextTag;
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+static void
+indirect_use_x_font(struct glx_context *gc,
+ Font font, int first, int count, int listBase)
+{
+ xGLXUseXFontReq *req;
+ Display *dpy = gc->currentDpy;
+
+ /* Flush any pending commands out */
+ __glXFlushRenderBuffer(gc, gc->pc);
+
+ /* Send the glXUseFont request */
+ LockDisplay(dpy);
+ GetReq(GLXUseXFont, req);
+ req->reqType = gc->majorOpcode;
+ req->glxCode = X_GLXUseXFont;
+ req->contextTag = gc->currentContextTag;
+ req->font = font;
+ req->first = first;
+ req->count = count;
+ req->listBase = listBase;
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+static void
+indirect_bind_tex_image(Display * dpy,
+ GLXDrawable drawable,
+ int buffer, const int *attrib_list)
+{
+ xGLXVendorPrivateReq *req;
+ struct glx_context *gc = __glXGetCurrentContext();
+ CARD32 *drawable_ptr;
+ INT32 *buffer_ptr;
+ CARD32 *num_attrib_ptr;
+ CARD32 *attrib_ptr;
+ CARD8 opcode;
+ unsigned int i;
+
+ i = 0;
+ if (attrib_list) {
+ while (attrib_list[i * 2] != None)
+ i++;
+ }
+
+ opcode = __glXSetupForCommand(dpy);
+ if (!opcode)
+ return;
+
+ LockDisplay(dpy);
+ GetReqExtra(GLXVendorPrivate, 12 + 8 * i, req);
+ req->reqType = opcode;
+ req->glxCode = X_GLXVendorPrivate;
+ req->vendorCode = X_GLXvop_BindTexImageEXT;
+ req->contextTag = gc->currentContextTag;
+
+ drawable_ptr = (CARD32 *) (req + 1);
+ buffer_ptr = (INT32 *) (drawable_ptr + 1);
+ num_attrib_ptr = (CARD32 *) (buffer_ptr + 1);
+ attrib_ptr = (CARD32 *) (num_attrib_ptr + 1);
+
+ *drawable_ptr = drawable;
+ *buffer_ptr = buffer;
+ *num_attrib_ptr = (CARD32) i;
+
+ i = 0;
+ if (attrib_list) {
+ while (attrib_list[i * 2] != None) {
+ *attrib_ptr++ = (CARD32) attrib_list[i * 2 + 0];
+ *attrib_ptr++ = (CARD32) attrib_list[i * 2 + 1];
+ i++;
+ }
+ }
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+static void
+indirect_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer)
+{
+ xGLXVendorPrivateReq *req;
+ struct glx_context *gc = __glXGetCurrentContext();
+ CARD32 *drawable_ptr;
+ INT32 *buffer_ptr;
+ CARD8 opcode;
+
+ opcode = __glXSetupForCommand(dpy);
+ if (!opcode)
+ return;
+
+ LockDisplay(dpy);
+ GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32), req);
+ req->reqType = opcode;
+ req->glxCode = X_GLXVendorPrivate;
+ req->vendorCode = X_GLXvop_ReleaseTexImageEXT;
+ req->contextTag = gc->currentContextTag;
+
+ drawable_ptr = (CARD32 *) (req + 1);
+ buffer_ptr = (INT32 *) (drawable_ptr + 1);
+
+ *drawable_ptr = drawable;
+ *buffer_ptr = buffer;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+static const struct glx_context_vtable indirect_context_vtable = {
+ indirect_destroy_context,
+ indirect_bind_context,
+ indirect_unbind_context,
+ indirect_wait_gl,
+ indirect_wait_x,
+ indirect_use_x_font,
+ indirect_bind_tex_image,
+ indirect_release_tex_image,
+};
+
+/**
+ * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new
+ * function called \c __glXAllocateClientState that allocates the memory and
+ * does all the initialization (including the pixel pack / unpack).
+ */
+_X_HIDDEN struct glx_context *
+indirect_create_context(struct glx_screen *psc,
+ struct glx_config *mode,
+ struct glx_context *shareList, int renderType)
+{
+ struct glx_context *gc;
+ int bufSize;
+ CARD8 opcode;
+ __GLXattribute *state;
+
+ opcode = __glXSetupForCommand(psc->dpy);
+ if (!opcode) {
+ return NULL;
+ }
+
+ /* Allocate our context record */
+ gc = Xmalloc(sizeof *gc);
+ if (!gc) {
+ /* Out of memory */
+ return NULL;
+ }
+ memset(gc, 0, sizeof *gc);
+
+ glx_context_init(gc, psc, mode);
+ gc->isDirect = GL_FALSE;
+ gc->vtable = &indirect_context_vtable;
+ state = Xmalloc(sizeof(struct __GLXattributeRec));
+ if (state == NULL) {
+ /* Out of memory */
+ Xfree(gc);
+ return NULL;
+ }
+ gc->client_state_private = state;
+ memset(gc->client_state_private, 0, sizeof(struct __GLXattributeRec));
+ state->NoDrawArraysProtocol = (getenv("LIBGL_NO_DRAWARRAYS") != NULL);
+
+ /*
+ ** Create a temporary buffer to hold GLX rendering commands. The size
+ ** of the buffer is selected so that the maximum number of GLX rendering
+ ** commands can fit in a single X packet and still have room in the X
+ ** packet for the GLXRenderReq header.
+ */
+
+ bufSize = (XMaxRequestSize(psc->dpy) * 4) - sz_xGLXRenderReq;
+ gc->buf = (GLubyte *) Xmalloc(bufSize);
+ if (!gc->buf) {
+ Xfree(gc->client_state_private);
+ Xfree(gc);
+ return NULL;
+ }
+ gc->bufSize = bufSize;
+
+ /* Fill in the new context */
+ gc->renderMode = GL_RENDER;
+
+ state->storePack.alignment = 4;
+ state->storeUnpack.alignment = 4;
+
+ gc->attributes.stackPointer = &gc->attributes.stack[0];
+
+ /*
+ ** PERFORMANCE NOTE: A mode dependent fill image can speed things up.
+ ** Other code uses the fastImageUnpack bit, but it is never set
+ ** to GL_TRUE.
+ */
+ gc->fastImageUnpack = GL_FALSE;
+ gc->fillImage = __glFillImage;
+ gc->pc = gc->buf;
+ gc->bufEnd = gc->buf + bufSize;
+ gc->isDirect = GL_FALSE;
+ if (__glXDebug) {
+ /*
+ ** Set limit register so that there will be one command per packet
+ */
+ gc->limit = gc->buf;
+ }
+ else {
+ gc->limit = gc->buf + bufSize - __GLX_BUFFER_LIMIT_SIZE;
+ }
+ gc->majorOpcode = opcode;
+
+ /*
+ ** Constrain the maximum drawing command size allowed to be
+ ** transfered using the X_GLXRender protocol request. First
+ ** constrain by a software limit, then constrain by the protocl
+ ** limit.
+ */
+ if (bufSize > __GLX_RENDER_CMD_SIZE_LIMIT) {
+ bufSize = __GLX_RENDER_CMD_SIZE_LIMIT;
+ }
+ if (bufSize > __GLX_MAX_RENDER_CMD_SIZE) {
+ bufSize = __GLX_MAX_RENDER_CMD_SIZE;
+ }
+ gc->maxSmallRenderCommandSize = bufSize;
+
+
+ return gc;
+}
+
+struct glx_screen_vtable indirect_screen_vtable = {
+ indirect_create_context
+};
+
+_X_HIDDEN struct glx_screen *
+indirect_create_screen(int screen, struct glx_display * priv)
+{
+ struct glx_screen *psc;
+
+ psc = Xmalloc(sizeof *psc);
+ if (psc == NULL)
+ return NULL;
+
+ memset(psc, 0, sizeof *psc);
+ glx_screen_init(psc, screen, priv);
+ psc->vtable = &indirect_screen_vtable;
+
+ return psc;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 02:04:18 +0000