add missed files for DRI2 merge

1 files changed, 399 insertions, 0 deletions

diff --git a/src/glx/x11/dri_common.c b/src/glx/x11/dri_common.c
new file mode 100644
index 0000000000..b159d193a5
--- /dev/null
+++ b/src/glx/x11/dri_common.c
@@ -0,0 +1,399 @@
+/*
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright © 2008 Red Hat, Inc.
+ *
+ * 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:
+ *   Kevin E. Martin <kevin@precisioninsight.com>
+ *   Brian Paul <brian@precisioninsight.com>
+ *   Kristian Høgsberg (krh@redhat.com)
+ */
+
+#ifdef GLX_DIRECT_RENDERING
+
+#include <unistd.h>
+#include <dlfcn.h>
+#include "glheader.h"
+#include "glxclient.h"
+#include "glcontextmodes.h"
+#include "dri_common.h"
+
+#ifndef RTLD_NOW
+#define RTLD_NOW 0
+#endif
+#ifndef RTLD_GLOBAL
+#define RTLD_GLOBAL 0
+#endif
+
+_X_HIDDEN void InfoMessageF(const char *f, ...)
+{
+    va_list args;
+    const char *env;
+
+    if ((env = getenv("LIBGL_DEBUG")) && strstr(env, "verbose")) {
+	fprintf(stderr, "libGL: ");
+	va_start(args, f);
+	vfprintf(stderr, f, args);
+	va_end(args);
+    }
+}
+
+/**
+ * Print error to stderr, unless LIBGL_DEBUG=="quiet".
+ */
+_X_HIDDEN void ErrorMessageF(const char *f, ...)
+{
+    va_list args;
+    const char *env;
+
+    if ((env = getenv("LIBGL_DEBUG")) && !strstr(env, "quiet")) {
+	fprintf(stderr, "libGL error: ");
+	va_start(args, f);
+	vfprintf(stderr, f, args);
+	va_end(args);
+    }
+}
+
+#ifndef DEFAULT_DRIVER_DIR
+/* this is normally defined in Mesa/configs/default with DRI_DRIVER_SEARCH_PATH */
+#define DEFAULT_DRIVER_DIR "/usr/local/lib/dri"
+#endif
+
+/**
+ * Try to \c dlopen the named driver.
+ *
+ * This function adds the "_dri.so" suffix to the driver name and searches the
+ * directories specified by the \c LIBGL_DRIVERS_PATH environment variable in
+ * order to find the driver.
+ *
+ * \param driverName - a name like "tdfx", "i810", "mga", etc.
+ *
+ * \returns
+ * A handle from \c dlopen, or \c NULL if driver file not found.
+ */
+_X_HIDDEN void *driOpenDriver(const char *driverName)
+{
+   void *glhandle, *handle;
+   const char *libPaths, *p, *next;
+   char realDriverName[200];
+   int len;
+
+   /* Attempt to make sure libGL symbols will be visible to the driver */
+   glhandle = dlopen("libGL.so.1", RTLD_NOW | RTLD_GLOBAL);
+
+   libPaths = NULL;
+   if (geteuid() == getuid()) {
+      /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
+      libPaths = getenv("LIBGL_DRIVERS_PATH");
+      if (!libPaths)
+         libPaths = getenv("LIBGL_DRIVERS_DIR"); /* deprecated */
+   }
+   if (libPaths == NULL)
+       libPaths = DEFAULT_DRIVER_DIR;
+
+   handle = NULL;
+   for (p = libPaths; *p; p = next) {
+       next = strchr(p, ':');
+       if (next == NULL) {
+	   len = strlen(p);
+	   next = p + len;
+       } else {
+	   len = next - p;
+	   next++;
+       }
+
+#ifdef GLX_USE_TLS
+      snprintf(realDriverName, sizeof realDriverName,
+	       "%.*s/tls/%s_dri.so", len, p, driverName);
+      InfoMessageF("OpenDriver: trying %s\n", realDriverName);
+      handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL);
+#endif
+
+      if ( handle == NULL ) {
+	 snprintf(realDriverName, sizeof realDriverName,
+		  "%.*s/%s_dri.so", len, p, driverName);
+	 InfoMessageF("OpenDriver: trying %s\n", realDriverName);
+	 handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL);
+      }
+
+      if ( handle != NULL )
+	  break;
+      else
+	 ErrorMessageF("dlopen %s failed (%s)\n", realDriverName, dlerror());
+   }
+
+   if (!handle)
+      ErrorMessageF("unable to load driver: %s_dri.so\n", driverName);
+
+   if (glhandle)
+      dlclose(glhandle);
+
+   return handle;
+}
+
+_X_HIDDEN const __DRIsystemTimeExtension systemTimeExtension = {
+    { __DRI_SYSTEM_TIME, __DRI_SYSTEM_TIME_VERSION },
+    __glXGetUST,
+    __driGetMscRateOML
+};
+
+#define __ATTRIB(attrib, field) \
+    { attrib, offsetof(__GLcontextModes, field) }
+
+static const struct { unsigned int attrib, offset; } attribMap[] = {
+    __ATTRIB(__DRI_ATTRIB_BUFFER_SIZE,			rgbBits),
+    __ATTRIB(__DRI_ATTRIB_LEVEL,			level),
+    __ATTRIB(__DRI_ATTRIB_RED_SIZE,			redBits),
+    __ATTRIB(__DRI_ATTRIB_GREEN_SIZE,			greenBits),
+    __ATTRIB(__DRI_ATTRIB_BLUE_SIZE,			blueBits),
+    __ATTRIB(__DRI_ATTRIB_ALPHA_SIZE,			alphaBits),
+    __ATTRIB(__DRI_ATTRIB_DEPTH_SIZE,			depthBits),
+    __ATTRIB(__DRI_ATTRIB_STENCIL_SIZE,			stencilBits),
+    __ATTRIB(__DRI_ATTRIB_ACCUM_RED_SIZE,		accumRedBits),
+    __ATTRIB(__DRI_ATTRIB_ACCUM_GREEN_SIZE,		accumGreenBits),
+    __ATTRIB(__DRI_ATTRIB_ACCUM_BLUE_SIZE,		accumBlueBits),
+    __ATTRIB(__DRI_ATTRIB_ACCUM_ALPHA_SIZE,		accumAlphaBits),
+    __ATTRIB(__DRI_ATTRIB_SAMPLE_BUFFERS,		sampleBuffers),
+    __ATTRIB(__DRI_ATTRIB_SAMPLES,			samples),
+    __ATTRIB(__DRI_ATTRIB_DOUBLE_BUFFER,		doubleBufferMode),
+    __ATTRIB(__DRI_ATTRIB_STEREO,			stereoMode),
+    __ATTRIB(__DRI_ATTRIB_AUX_BUFFERS,			numAuxBuffers),
+#if 0
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_TYPE,		transparentPixel),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_INDEX_VALUE,	transparentIndex),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_RED_VALUE,	transparentRed),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_GREEN_VALUE,	transparentGreen),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_BLUE_VALUE,	transparentBlue),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE,	transparentAlpha),
+    __ATTRIB(__DRI_ATTRIB_RED_MASK,			redMask),
+    __ATTRIB(__DRI_ATTRIB_GREEN_MASK,			greenMask),
+    __ATTRIB(__DRI_ATTRIB_BLUE_MASK,			blueMask),
+    __ATTRIB(__DRI_ATTRIB_ALPHA_MASK,			alphaMask),
+#endif
+    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_WIDTH,		maxPbufferWidth),
+    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_HEIGHT,		maxPbufferHeight),
+    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_PIXELS,		maxPbufferPixels),
+    __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH,	optimalPbufferWidth),
+    __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT,	optimalPbufferHeight),
+#if 0
+    __ATTRIB(__DRI_ATTRIB_SWAP_METHOD,			swapMethod),
+#endif
+    __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGB,		bindToTextureRgb),
+    __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGBA,		bindToTextureRgba),
+    __ATTRIB(__DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE,	bindToMipmapTexture),
+    __ATTRIB(__DRI_ATTRIB_YINVERTED,			yInverted),
+};
+
+#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
+
+static int
+scalarEqual(__GLcontextModes *mode, unsigned int attrib, unsigned int value)
+{
+    unsigned int glxValue;
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(attribMap); i++)
+	if (attribMap[i].attrib == attrib) {
+	    glxValue = *(unsigned int *) ((char *) mode + attribMap[i].offset);
+	    return glxValue == GLX_DONT_CARE || glxValue == value;
+	}
+
+    return GL_TRUE; /* Is a non-existing attribute equal to value? */
+}
+
+static int
+driConfigEqual(const __DRIcoreExtension *core,
+	       __GLcontextModes *modes, const __DRIconfig *driConfig)
+{
+    unsigned int attrib, value, glxValue;
+    int i;
+
+    i = 0;
+    while (core->indexConfigAttrib(driConfig, i++, &attrib, &value)) {
+	switch (attrib) {
+	case __DRI_ATTRIB_RENDER_TYPE:
+	    glxValue = 0;
+	    if (value & __DRI_ATTRIB_RGBA_BIT) {
+		glxValue |= GLX_RGBA_BIT;
+	    } else if (value & __DRI_ATTRIB_COLOR_INDEX_BIT) {
+		glxValue |= GLX_COLOR_INDEX_BIT;
+	    }
+	    if (glxValue != modes->renderType)
+		return GL_FALSE;
+	    break;
+
+	case __DRI_ATTRIB_CONFIG_CAVEAT:
+	    if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
+		glxValue = GLX_NON_CONFORMANT_CONFIG;
+	    else if (value & __DRI_ATTRIB_SLOW_BIT)
+		glxValue = GLX_SLOW_CONFIG;
+	    else
+		glxValue = GLX_NONE;
+	    if (glxValue != modes->visualRating)
+		return GL_FALSE;
+	    break;
+
+	case __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS:
+	    glxValue = 0;
+	    if (value & __DRI_ATTRIB_TEXTURE_1D_BIT)
+		glxValue |= GLX_TEXTURE_1D_BIT_EXT;
+	    if (value & __DRI_ATTRIB_TEXTURE_2D_BIT)
+		glxValue |= GLX_TEXTURE_2D_BIT_EXT;
+	    if (value & __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT)
+		glxValue |= GLX_TEXTURE_RECTANGLE_BIT_EXT;
+	    if (modes->bindToTextureTargets != GLX_DONT_CARE &&
+		glxValue != modes->bindToTextureTargets)
+		return GL_FALSE;
+	    break;	
+
+	default:
+	    if (!scalarEqual(modes, attrib, value))
+		return GL_FALSE;
+	}
+    }
+
+    return GL_TRUE;
+}
+
+static __GLcontextModes *
+createDriMode(const __DRIcoreExtension *core,
+	      __GLcontextModes *modes, const __DRIconfig **driConfigs)
+{
+    __GLXDRIconfigPrivate *config;
+    int i;
+
+    for (i = 0; driConfigs[i]; i++) {
+	if (driConfigEqual(core, modes, driConfigs[i]))
+	    break;
+    }
+
+    if (driConfigs[i] == NULL)
+	return NULL;
+
+    config = Xmalloc(sizeof *config);
+    if (config == NULL)
+	return NULL;
+
+    config->modes = *modes;
+    config->driConfig = driConfigs[i];
+
+    return &config->modes;
+}
+
+_X_HIDDEN __GLcontextModes *
+driConvertConfigs(const __DRIcoreExtension *core,
+		  __GLcontextModes *modes, const __DRIconfig **configs)
+{
+    __GLcontextModes head, *tail, *m;
+
+    tail = &head;
+    head.next = NULL;
+    for (m = modes; m; m = m->next) {
+	tail->next = createDriMode(core, m, configs);
+	if (tail->next == NULL) {
+	    /* no matching dri config for m */
+	    continue;
+	}
+
+
+	tail = tail->next;
+    }
+
+    _gl_context_modes_destroy(modes);
+
+    return head.next;
+}
+
+_X_HIDDEN void
+driBindExtensions(__GLXscreenConfigs *psc)
+{
+    const __DRIextension **extensions;
+    int i;
+
+    extensions = psc->core->getExtensions(psc->__driScreen);
+
+    for (i = 0; extensions[i]; i++) {
+#ifdef __DRI_COPY_SUB_BUFFER
+	if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) {
+	    psc->copySubBuffer = (__DRIcopySubBufferExtension *) extensions[i];
+	    __glXEnableDirectExtension(psc, "GLX_MESA_copy_sub_buffer_bit");
+	}
+#endif
+
+#ifdef __DRI_SWAP_CONTROL
+	if (strcmp(extensions[i]->name, __DRI_SWAP_CONTROL) == 0) {
+	    psc->swapControl = (__DRIswapControlExtension *) extensions[i];
+	    __glXEnableDirectExtension(psc, "GLX_SGI_swap_control");
+	    __glXEnableDirectExtension(psc, "GLX_MESA_swap_control");
+	}
+#endif
+
+#ifdef __DRI_ALLOCATE
+	if (strcmp(extensions[i]->name, __DRI_ALLOCATE) == 0) {
+	    psc->allocate = (__DRIallocateExtension *) extensions[i];
+	    __glXEnableDirectExtension(psc, "GLX_MESA_allocate_memory");
+	}
+#endif
+
+#ifdef __DRI_FRAME_TRACKING
+	if (strcmp(extensions[i]->name, __DRI_FRAME_TRACKING) == 0) {
+	    psc->frameTracking = (__DRIframeTrackingExtension *) extensions[i];
+	    __glXEnableDirectExtension(psc, "GLX_MESA_swap_frame_usage");
+	}
+#endif
+
+#ifdef __DRI_MEDIA_STREAM_COUNTER
+	if (strcmp(extensions[i]->name, __DRI_MEDIA_STREAM_COUNTER) == 0) {
+	    psc->msc = (__DRImediaStreamCounterExtension *) extensions[i];
+	    __glXEnableDirectExtension(psc, "GLX_SGI_video_sync");
+	}
+#endif
+
+#ifdef __DRI_SWAP_BUFFER_COUNTER
+	/* No driver supports this at this time and the extension is
+	 * not defined in dri_interface.h.  Will enable
+	 * GLX_OML_sync_control if implemented. */
+#endif
+
+#ifdef __DRI_READ_DRAWABLE
+	if (strcmp(extensions[i]->name, __DRI_READ_DRAWABLE) == 0) {
+	    __glXEnableDirectExtension(psc, "GLX_SGI_make_current_read");
+	}
+#endif
+
+#ifdef __DRI_TEX_BUFFER
+	if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) {
+	    psc->texBuffer = (__DRItexBufferExtension *) extensions[i];
+	    __glXEnableDirectExtension(psc, "GLX_EXT_texture_from_pixmap");
+	}
+#endif
+
+	/* Ignore unknown extensions */
+    }
+}
+
+#endif /* GLX_DIRECT_RENDERING */