On 07/27/2017 03:08 PM, Timothy Arceri wrote:
From: Andres Rodriguez <andre...@gmail.com>

V2 (Timothy Arceri):
  - fix copy and paste error with error message

V3 (Timothy Arceri):
  - drop the Protected field for now as its unused

Signed-off-by: Andres Rodriguez <andre...@gmail.com>
Reviewed-by: Timothy Arceri <tarc...@itsqueeze.com>
---
  src/mesa/main/externalobjects.c | 51 ++++++++++++++++++++++++++++++++++++++++-
  src/mesa/main/mtypes.h          |  4 +++-
  2 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/src/mesa/main/externalobjects.c b/src/mesa/main/externalobjects.c
index 4cbada3f4e..c3ee0d8115 100644
--- a/src/mesa/main/externalobjects.c
+++ b/src/mesa/main/externalobjects.c
@@ -66,20 +66,21 @@ _mesa_init_memory_object_functions(struct dd_function_table 
*driver)
  /**
   * Initialize a buffer object to default values.
   */
  void
  _mesa_initialize_memory_object(struct gl_context *ctx,
                                 struct gl_memory_object *obj,
                                 GLuint name)
  {
     memset(obj, 0, sizeof(struct gl_memory_object));
     obj->Name = name;
+   obj->Dedicated = GL_FALSE;
  }
void GLAPIENTRY
  _mesa_DeleteMemoryObjectsEXT(GLsizei n, const GLuint *memoryObjects)
  {
     GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & (VERBOSE_API))
        _mesa_debug(ctx, "glDeleteMemoryObjectsEXT(%d, %p)\n", n, 
memoryObjects);
@@ -135,21 +136,20 @@ _mesa_CreateMemoryObjectsEXT(GLsizei n, GLuint *memoryObjects)
     }
if (!memoryObjects)
        return;
_mesa_HashLockMutex(ctx->Shared->MemoryObjects);
     GLuint first = _mesa_HashFindFreeKeyBlock(ctx->Shared->MemoryObjects, n);
     if (first) {
        for (GLsizei i = 0; i < n; i++) {
           struct gl_memory_object *memObj;
-

mmh?

           memoryObjects[i] = first + i;
/* allocate memory object */
           memObj = ctx->Driver.NewMemoryObject(ctx, memoryObjects[i]);
           if (!memObj) {
              _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s()", func);
              goto out_unlock;
           }
/* insert into hash table */
@@ -161,29 +161,77 @@ _mesa_CreateMemoryObjectsEXT(GLsizei n, GLuint 
*memoryObjects)
out_unlock:
     _mesa_HashUnlockMutex(ctx->Shared->MemoryObjects);
  }
void GLAPIENTRY
  _mesa_MemoryObjectParameterivEXT(GLuint memoryObject,
                                   GLenum pname,
                                   const GLint *params)
  {
+   GET_CURRENT_CONTEXT(ctx);
+   struct gl_memory_object *memObj;
+
+   memObj = _mesa_lookup_memory_object(ctx, memoryObject);

Like I said previously, if memoryObject is 0 this will crash (or assert). Does the spec allow memoryObject to be 0? Though, usually when an object is not found, we have to return GL_INVALID_OPERATION, but the spec doesn't seem to mention anything about that.

+   if (!memObj)
+      return;
+
+   if (memObj->Immutable) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glMemoryObjectParameterivEXT(memoryObject is immutable");
+      return;
+   }
+ switch (pname) {
+   case GL_DEDICATED_MEMORY_OBJECT_EXT:
+      memObj->Dedicated = (GLboolean) params[0];
+      break;
+   case GL_PROTECTED_MEMORY_OBJECT_EXT:
+      /* EXT_protected_textures not supported */
+      goto invalid_pname;
+   default:
+      goto invalid_pname;
+   }
+   return;
+
+invalid_pname:
+   _mesa_error(ctx, GL_INVALID_ENUM,
+               "glMemoryObjectParameterivEXT(pname=0x%x)", pname);
  }
void GLAPIENTRY
  _mesa_GetMemoryObjectParameterivEXT(GLuint memoryObject,
                                      GLenum pname,
                                      GLint *params)
  {
+   GET_CURRENT_CONTEXT(ctx);
+   struct gl_memory_object *memObj;
+
+   memObj = _mesa_lookup_memory_object(ctx, memoryObject);
+   if (!memObj)
+      return;
+
+   switch (pname) {
+      case GL_DEDICATED_MEMORY_OBJECT_EXT:
+         *params = (GLint) memObj->Dedicated;
+         break;
+      case GL_PROTECTED_MEMORY_OBJECT_EXT:
+         /* EXT_protected_textures not supported */
+         goto invalid_pname;
+      default:
+         goto invalid_pname;
+   }
+   return;
+invalid_pname:
+   _mesa_error(ctx, GL_INVALID_ENUM,
+               "glGetMemoryObjectParameterivEXT(pname=0x%x)", pname);
  }
void GLAPIENTRY
  _mesa_TexStorageMem2DEXT(GLenum target,
                           GLsizei levels,
                           GLenum internalFormat,
                           GLsizei width,
                           GLsizei height,
                           GLuint memory,
                           GLuint64 offset)
@@ -375,19 +423,20 @@ _mesa_ImportMemoryFdEXT(GLuint memory,
     }
if (memory == 0)
        return;
struct gl_memory_object *memObj = _mesa_lookup_memory_object(ctx, memory);
     if (!memObj)
        return;
ctx->Driver.ImportMemoryObjectFd(ctx, memObj, size, fd);
+   memObj->Immutable = GL_TRUE;
  }
void GLAPIENTRY
  _mesa_ImportSemaphoreFdEXT(GLuint semaphore,
                             GLenum handleType,
                             GLint fd)
  {
}
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 642cd72d29..8cb9ae3d17 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -4640,21 +4640,23 @@ struct gl_texture_handle_object
  };
struct gl_image_handle_object
  {
     struct gl_image_unit imgObj;
     GLuint64 handle;
  };
struct gl_memory_object
  {
-   GLuint Name;          /**< hash table ID/name */
+   GLuint Name;            /**< hash table ID/name */
+   GLboolean Immutable;    /**< denotes mutability state of parameters */
+   GLboolean Dedicated;    /**< import memory from a dedicated allocation */
  };
/**
   * Mesa rendering context.
   *
   * This is the central context data structure for Mesa.  Almost all
   * OpenGL state is contained in this structure.
   * Think of this as a base class from which device drivers will derive
   * sub classes.
   */

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