+/*
+ * (C) Copyright IBM Corporation 2002, 2004
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS AND/OR THEIR SUPPLIERS 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.
+ */
+
/**
* \file dri_util.c
* DRI utility functions.
*/
+#include <stdbool.h>
+#ifndef __NOT_HAVE_DRM_H
#include <xf86drm.h>
+#endif
#include "dri_util.h"
#include "utils.h"
#include "xmlpool.h"
#include "../glsl/glsl_parser_extras.h"
+#include "main/mtypes.h"
+#include "main/version.h"
+#include "main/macros.h"
PUBLIC const char __dri2ConfigOptions[] =
DRI_CONF_BEGIN
DRI_CONF_SECTION_END
DRI_CONF_END;
-static const uint __dri2NConfigOptions = 1;
-
/*****************************************************************/
/** \name Screen handling functions */
/*****************************************************************/
psp->dri2.image = (__DRIimageLookupExtension *) extensions[i];
if (strcmp(extensions[i]->name, __DRI_USE_INVALIDATE) == 0)
psp->dri2.useInvalidate = (__DRIuseInvalidateExtension *) extensions[i];
+ if (strcmp(extensions[i]->name, __DRI_SWRAST_LOADER) == 0)
+ psp->swrast_loader = (__DRIswrastLoaderExtension *) extensions[i];
}
}
+/**
+ * This is the first entrypoint in the driver called by the DRI driver loader
+ * after dlopen()ing it.
+ *
+ * It's used to create global state for the driver across contexts on the same
+ * Display.
+ */
static __DRIscreen *
dri2CreateNewScreen(int scrn, int fd,
const __DRIextension **extensions,
{
static const __DRIextension *emptyExtensionList[] = { NULL };
__DRIscreen *psp;
- drmVersionPtr version;
psp = calloc(1, sizeof(*psp));
if (!psp)
return NULL;
+ psp->driver = &driDriverAPI;
+
setupLoaderExtensions(psp, extensions);
- version = drmGetVersion(fd);
- if (version) {
- psp->drm_version.major = version->version_major;
- psp->drm_version.minor = version->version_minor;
- psp->drm_version.patch = version->version_patchlevel;
- drmFreeVersion(version);
+#ifndef __NOT_HAVE_DRM_H
+ if (fd != -1) {
+ drmVersionPtr version = drmGetVersion(fd);
+ if (version) {
+ psp->drm_version.major = version->version_major;
+ psp->drm_version.minor = version->version_minor;
+ psp->drm_version.patch = version->version_patchlevel;
+ drmFreeVersion(version);
+ }
}
+#endif
+
+ psp->loaderPrivate = data;
psp->extensions = emptyExtensionList;
psp->fd = fd;
psp->myNum = scrn;
- psp->api_mask = (1 << __DRI_API_OPENGL);
- *driver_configs = driDriverAPI.InitScreen(psp);
+ *driver_configs = psp->driver->InitScreen(psp);
if (*driver_configs == NULL) {
free(psp);
return NULL;
}
- psp->loaderPrivate = data;
+ int gl_version_override = _mesa_get_gl_version_override();
+ if (gl_version_override >= 31) {
+ psp->max_gl_core_version = MAX2(psp->max_gl_core_version,
+ gl_version_override);
+ } else {
+ psp->max_gl_compat_version = MAX2(psp->max_gl_compat_version,
+ gl_version_override);
+ }
+
+ psp->api_mask = (1 << __DRI_API_OPENGL);
+ if (psp->max_gl_core_version > 0)
+ psp->api_mask |= (1 << __DRI_API_OPENGL_CORE);
+ if (psp->max_gl_es1_version > 0)
+ psp->api_mask |= (1 << __DRI_API_GLES);
+ if (psp->max_gl_es2_version > 0)
+ psp->api_mask |= (1 << __DRI_API_GLES2);
+ if (psp->max_gl_es2_version >= 30)
+ psp->api_mask |= (1 << __DRI_API_GLES3);
+
+ driParseOptionInfo(&psp->optionInfo, __dri2ConfigOptions);
+ driParseConfigFiles(&psp->optionCache, &psp->optionInfo, psp->myNum, "dri2");
- driParseOptionInfo(&psp->optionInfo, __dri2ConfigOptions,
- __dri2NConfigOptions);
- driParseConfigFiles(&psp->optionCache, &psp->optionInfo, psp->myNum,
- "dri2");
return psp;
}
+/** swrast driver createNewScreen entrypoint. */
+static __DRIscreen *
+driCreateNewScreen(int scrn, const __DRIextension **extensions,
+ const __DRIconfig ***driver_configs, void *data)
+{
+ return dri2CreateNewScreen(scrn, -1, extensions, driver_configs, data);
+}
+
/**
* Destroy the per-screen private information.
*
_mesa_destroy_shader_compiler();
- if (driDriverAPI.DestroyScreen)
- driDriverAPI.DestroyScreen(psp);
+ psp->driver->DestroyScreen(psp);
driDestroyOptionCache(&psp->optionCache);
driDestroyOptionInfo(&psp->optionInfo);
/*@}*/
+static bool
+validate_context_version(__DRIscreen *screen,
+ int mesa_api,
+ unsigned major_version,
+ unsigned minor_version,
+ unsigned *dri_ctx_error)
+{
+ unsigned req_version = 10 * major_version + minor_version;
+ unsigned max_version = 0;
+
+ switch (mesa_api) {
+ case API_OPENGL_COMPAT:
+ max_version = screen->max_gl_compat_version;
+ break;
+ case API_OPENGL_CORE:
+ max_version = screen->max_gl_core_version;
+ break;
+ case API_OPENGLES:
+ max_version = screen->max_gl_es1_version;
+ break;
+ case API_OPENGLES2:
+ max_version = screen->max_gl_es2_version;
+ break;
+ default:
+ max_version = 0;
+ break;
+ }
+
+ if (max_version == 0) {
+ *dri_ctx_error = __DRI_CTX_ERROR_BAD_API;
+ return false;
+ } else if (req_version > max_version) {
+ *dri_ctx_error = __DRI_CTX_ERROR_BAD_VERSION;
+ return false;
+ }
+
+ return true;
+}
+
/*****************************************************************/
/** \name Context handling functions */
/*****************************************************************/
/*@{*/
static __DRIcontext *
-dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
- const __DRIconfig *config,
- __DRIcontext *shared, void *data)
+dri2CreateContextAttribs(__DRIscreen *screen, int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ unsigned num_attribs,
+ const uint32_t *attribs,
+ unsigned *error,
+ void *data)
{
__DRIcontext *context;
const struct gl_config *modes = (config != NULL) ? &config->modes : NULL;
void *shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
gl_api mesa_api;
+ unsigned major_version = 1;
+ unsigned minor_version = 0;
+ uint32_t flags = 0;
+
+ assert((num_attribs == 0) || (attribs != NULL));
- if (!(screen->api_mask & (1 << api)))
+ if (!(screen->api_mask & (1 << api))) {
+ *error = __DRI_CTX_ERROR_BAD_API;
return NULL;
+ }
switch (api) {
case __DRI_API_OPENGL:
- mesa_api = API_OPENGL;
- break;
+ mesa_api = API_OPENGL_COMPAT;
+ break;
case __DRI_API_GLES:
- mesa_api = API_OPENGLES;
- break;
+ mesa_api = API_OPENGLES;
+ break;
case __DRI_API_GLES2:
- mesa_api = API_OPENGLES2;
- break;
+ case __DRI_API_GLES3:
+ mesa_api = API_OPENGLES2;
+ break;
+ case __DRI_API_OPENGL_CORE:
+ mesa_api = API_OPENGL_CORE;
+ break;
default:
+ *error = __DRI_CTX_ERROR_BAD_API;
+ return NULL;
+ }
+
+ for (unsigned i = 0; i < num_attribs; i++) {
+ switch (attribs[i * 2]) {
+ case __DRI_CTX_ATTRIB_MAJOR_VERSION:
+ major_version = attribs[i * 2 + 1];
+ break;
+ case __DRI_CTX_ATTRIB_MINOR_VERSION:
+ minor_version = attribs[i * 2 + 1];
+ break;
+ case __DRI_CTX_ATTRIB_FLAGS:
+ flags = attribs[i * 2 + 1];
+ break;
+ default:
+ /* We can't create a context that satisfies the requirements of an
+ * attribute that we don't understand. Return failure.
+ */
+ assert(!"Should not get here.");
+ *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
return NULL;
+ }
+ }
+
+ /* Mesa does not support the GL_ARB_compatibilty extension or the
+ * compatibility profile. This means that we treat a API_OPENGL_COMPAT 3.1 as
+ * API_OPENGL_CORE and reject API_OPENGL_COMPAT 3.2+.
+ */
+ if (mesa_api == API_OPENGL_COMPAT && major_version == 3 && minor_version == 1)
+ mesa_api = API_OPENGL_CORE;
+
+ if (mesa_api == API_OPENGL_COMPAT
+ && ((major_version > 3)
+ || (major_version == 3 && minor_version >= 2))) {
+ *error = __DRI_CTX_ERROR_BAD_API;
+ return NULL;
+ }
+
+ /* The EGL_KHR_create_context spec says:
+ *
+ * "Flags are only defined for OpenGL context creation, and specifying
+ * a flags value other than zero for other types of contexts,
+ * including OpenGL ES contexts, will generate an error."
+ *
+ * The GLX_EXT_create_context_es2_profile specification doesn't say
+ * anything specific about this case. However, none of the known flags
+ * have any meaning in an ES context, so this seems safe.
+ */
+ if (mesa_api != API_OPENGL_COMPAT
+ && mesa_api != API_OPENGL_CORE
+ && flags != 0) {
+ *error = __DRI_CTX_ERROR_BAD_FLAG;
+ return NULL;
+ }
+
+ /* There are no forward-compatible contexts before OpenGL 3.0. The
+ * GLX_ARB_create_context spec says:
+ *
+ * "Forward-compatible contexts are defined only for OpenGL versions
+ * 3.0 and later."
+ *
+ * Forward-looking contexts are supported by silently converting the
+ * requested API to API_OPENGL_CORE.
+ *
+ * In Mesa, a debug context is the same as a regular context.
+ */
+ if ((flags & __DRI_CTX_FLAG_FORWARD_COMPATIBLE) != 0) {
+ mesa_api = API_OPENGL_CORE;
+ }
+
+ if ((flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_FORWARD_COMPATIBLE))
+ != 0) {
+ *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
+ return NULL;
}
- context = malloc(sizeof *context);
- if (!context)
+ if (!validate_context_version(screen, mesa_api,
+ major_version, minor_version, error))
+ return NULL;
+
+ context = calloc(1, sizeof *context);
+ if (!context) {
+ *error = __DRI_CTX_ERROR_NO_MEMORY;
return NULL;
+ }
+
+ context->loaderPrivate = data;
context->driScreenPriv = screen;
context->driDrawablePriv = NULL;
- context->loaderPrivate = data;
+ context->driReadablePriv = NULL;
- if (!driDriverAPI.CreateContext(mesa_api, modes,
- context, shareCtx) ) {
+ if (!screen->driver->CreateContext(mesa_api, modes, context,
+ major_version, minor_version,
+ flags, error, shareCtx) ) {
free(context);
return NULL;
}
+ struct gl_context *ctx = context->driverPrivate;
+ if ((flags & __DRI_CTX_FLAG_FORWARD_COMPATIBLE) != 0)
+ ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
+ if ((flags & __DRI_CTX_FLAG_DEBUG) != 0) {
+ ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_DEBUG_BIT;
+ ctx->Debug.DebugOutput = GL_TRUE;
+ }
+
+ *error = __DRI_CTX_ERROR_SUCCESS;
return context;
}
+static __DRIcontext *
+dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared, void *data)
+{
+ unsigned error;
+
+ return dri2CreateContextAttribs(screen, api, config, shared, 0, NULL,
+ &error, data);
+}
static __DRIcontext *
dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
__DRIcontext *shared, void *data)
{
- return dri2CreateNewContextForAPI(screen, __DRI_API_OPENGL,
- config, shared, data);
+ return dri2CreateNewContextForAPI(screen, __DRI_API_OPENGL,
+ config, shared, data);
}
/**
driDestroyContext(__DRIcontext *pcp)
{
if (pcp) {
- driDriverAPI.DestroyContext(pcp);
+ pcp->driScreenPriv->driver->DestroyContext(pcp);
free(pcp);
}
}
dri_get_drawable(prp);
}
- /* Call device-specific MakeCurrent */
- return driDriverAPI.MakeCurrent(pcp, pdp, prp);
+ return pcp->driScreenPriv->driver->MakeCurrent(pcp, pdp, prp);
}
/**
*/
if (pcp == NULL)
- return GL_FALSE;
+ return GL_FALSE;
pdp = pcp->driDrawablePriv;
prp = pcp->driReadablePriv;
/* already unbound */
if (!pdp && !prp)
- return GL_TRUE;
- /* Let driver unbind drawable from context */
- driDriverAPI.UnbindContext(pcp);
+ return GL_TRUE;
+
+ pcp->driScreenPriv->driver->UnbindContext(pcp);
assert(pdp);
if (pdp->refcount == 0) {
dri_put_drawable(pdp);
if (prp != pdp) {
- if (prp->refcount == 0) {
+ if (prp->refcount == 0) {
/* ERROR!!! */
return GL_FALSE;
}
- dri_put_drawable(prp);
+ dri_put_drawable(prp);
}
-
- /* XXX this is disabled so that if we call SwapBuffers on an unbound
- * window we can determine the last context bound to the window and
- * use that context's lock. (BrianP, 2-Dec-2000)
- */
- pcp->driDrawablePriv = pcp->driReadablePriv = NULL;
+ pcp->driDrawablePriv = NULL;
+ pcp->driReadablePriv = NULL;
return GL_TRUE;
}
static void dri_put_drawable(__DRIdrawable *pdp)
{
- __DRIscreen *psp;
-
if (pdp) {
pdp->refcount--;
if (pdp->refcount)
return;
- psp = pdp->driScreenPriv;
- driDriverAPI.DestroyBuffer(pdp);
+ pdp->driScreenPriv->driver->DestroyBuffer(pdp);
free(pdp);
}
}
static __DRIdrawable *
dri2CreateNewDrawable(__DRIscreen *screen,
const __DRIconfig *config,
- void *loaderPrivate)
+ void *data)
{
__DRIdrawable *pdraw;
if (!pdraw)
return NULL;
+ pdraw->loaderPrivate = data;
+
+ pdraw->driScreenPriv = screen;
pdraw->driContextPriv = NULL;
- pdraw->loaderPrivate = loaderPrivate;
- pdraw->refcount = 1;
+ pdraw->refcount = 0;
pdraw->lastStamp = 0;
pdraw->w = 0;
pdraw->h = 0;
- pdraw->driScreenPriv = screen;
- if (!driDriverAPI.CreateBuffer(screen, pdraw, &config->modes, 0)) {
+ dri_get_drawable(pdraw);
+
+ if (!screen->driver->CreateBuffer(screen, pdraw, &config->modes,
+ GL_FALSE)) {
free(pdraw);
return NULL;
}
unsigned int attachment, unsigned int format,
int width, int height)
{
- return driDriverAPI.AllocateBuffer(screen, attachment, format,
- width, height);
+ return screen->driver->AllocateBuffer(screen, attachment, format,
+ width, height);
}
static void
dri2ReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer)
{
- driDriverAPI.ReleaseBuffer(screen, buffer);
+ screen->driver->ReleaseBuffer(screen, buffer);
}
return screen->api_mask;
}
+/**
+ * swrast swapbuffers entrypoint.
+ *
+ * DRI2 implements this inside the loader with only flushes handled by the
+ * driver.
+ */
+static void
+driSwapBuffers(__DRIdrawable *pdp)
+{
+ assert(pdp->driScreenPriv->swrast_loader);
+
+ pdp->driScreenPriv->driver->SwapBuffers(pdp);
+}
/** Core interface */
const __DRIcoreExtension driCoreExtension = {
- { __DRI_CORE, __DRI_CORE_VERSION },
- NULL,
- driDestroyScreen,
- driGetExtensions,
- driGetConfigAttrib,
- driIndexConfigAttrib,
- NULL,
- driDestroyDrawable,
- NULL,
- NULL,
- driCopyContext,
- driDestroyContext,
- driBindContext,
- driUnbindContext
+ .base = { __DRI_CORE, __DRI_CORE_VERSION },
+
+ .createNewScreen = NULL,
+ .destroyScreen = driDestroyScreen,
+ .getExtensions = driGetExtensions,
+ .getConfigAttrib = driGetConfigAttrib,
+ .indexConfigAttrib = driIndexConfigAttrib,
+ .createNewDrawable = NULL,
+ .destroyDrawable = driDestroyDrawable,
+ .swapBuffers = driSwapBuffers, /* swrast */
+ .createNewContext = dri2CreateNewContext, /* swrast */
+ .copyContext = driCopyContext,
+ .destroyContext = driDestroyContext,
+ .bindContext = driBindContext,
+ .unbindContext = driUnbindContext
};
/** DRI2 interface */
const __DRIdri2Extension driDRI2Extension = {
- { __DRI_DRI2, __DRI_DRI2_VERSION },
- dri2CreateNewScreen,
+ .base = { __DRI_DRI2, 3 },
+
+ .createNewScreen = dri2CreateNewScreen,
+ .createNewDrawable = dri2CreateNewDrawable,
+ .createNewContext = dri2CreateNewContext,
+ .getAPIMask = dri2GetAPIMask,
+ .createNewContextForAPI = dri2CreateNewContextForAPI,
+ .allocateBuffer = dri2AllocateBuffer,
+ .releaseBuffer = dri2ReleaseBuffer,
+ .createContextAttribs = dri2CreateContextAttribs
+};
+
+const __DRIswrastExtension driSWRastExtension = {
+ { __DRI_SWRAST, __DRI_SWRAST_VERSION },
+ driCreateNewScreen,
dri2CreateNewDrawable,
- dri2CreateNewContext,
- dri2GetAPIMask,
dri2CreateNewContextForAPI,
- dri2AllocateBuffer,
- dri2ReleaseBuffer
+ dri2CreateContextAttribs
};
const __DRI2configQueryExtension dri2ConfigQueryExtension = {
- { __DRI2_CONFIG_QUERY, __DRI2_CONFIG_QUERY_VERSION },
- dri2ConfigQueryb,
- dri2ConfigQueryi,
- dri2ConfigQueryf,
+ .base = { __DRI2_CONFIG_QUERY, __DRI2_CONFIG_QUERY_VERSION },
+
+ .configQueryb = dri2ConfigQueryb,
+ .configQueryi = dri2ConfigQueryi,
+ .configQueryf = dri2ConfigQueryf,
};
void
projects / mesa.git / blobdiff