mesa: add support for memory object creation/import/delete
[mesa.git] / src / mesa / main / fbobject.c
index c5a702636a82d888bdd3650d0200e01ce22fff54..4d6fdfcd6bd90be08c9dbb5b16b65d21c1febe6e 100644 (file)
@@ -222,15 +222,21 @@ get_framebuffer_target(struct gl_context *ctx, GLenum target)
  * default / window-system FB object.
  * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
  * the depth buffer attachment point.
+ * Returns if the attachment is a GL_COLOR_ATTACHMENTm_EXT on
+ * is_color_attachment, because several callers would return different errors
+ * if they don't find the attachment.
  */
 static struct gl_renderbuffer_attachment *
 get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
-               GLenum attachment)
+               GLenum attachment, bool *is_color_attachment)
 {
    GLuint i;
 
    assert(_mesa_is_user_fbo(fb));
 
+   if (is_color_attachment)
+      *is_color_attachment = false;
+
    switch (attachment) {
    case GL_COLOR_ATTACHMENT0_EXT:
    case GL_COLOR_ATTACHMENT1_EXT:
@@ -248,6 +254,8 @@ get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
    case GL_COLOR_ATTACHMENT13_EXT:
    case GL_COLOR_ATTACHMENT14_EXT:
    case GL_COLOR_ATTACHMENT15_EXT:
+      if (is_color_attachment)
+         *is_color_attachment = true;
       /* Only OpenGL ES 1.x forbids color attachments other than
        * GL_COLOR_ATTACHMENT0.  For all other APIs the limit set by the
        * hardware is used.
@@ -277,8 +285,8 @@ get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
  * window-system framebuffer (not user-created framebuffer objects).
  */
 static struct gl_renderbuffer_attachment *
-_mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
-                         GLenum attachment)
+get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
+                   GLenum attachment)
 {
    assert(_mesa_is_winsys_fbo(fb));
 
@@ -295,7 +303,7 @@ _mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
             return &fb->Attachment[BUFFER_BACK_LEFT];
          return &fb->Attachment[BUFFER_FRONT_LEFT];
       case GL_DEPTH:
-      return &fb->Attachment[BUFFER_DEPTH];
+         return &fb->Attachment[BUFFER_DEPTH];
       case GL_STENCIL:
          return &fb->Attachment[BUFFER_STENCIL];
       }
@@ -303,9 +311,21 @@ _mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
 
    switch (attachment) {
    case GL_FRONT_LEFT:
-      return &fb->Attachment[BUFFER_FRONT_LEFT];
+      /* Front buffers can be allocated on the first use, but
+       * glGetFramebufferAttachmentParameteriv must work even if that
+       * allocation hasn't happened yet. In such case, use the back buffer,
+       * which should be the same.
+       */
+      if (fb->Attachment[BUFFER_FRONT_LEFT].Type == GL_NONE)
+         return &fb->Attachment[BUFFER_BACK_LEFT];
+      else
+         return &fb->Attachment[BUFFER_FRONT_LEFT];
    case GL_FRONT_RIGHT:
-      return &fb->Attachment[BUFFER_FRONT_RIGHT];
+      /* Same as above. */
+      if (fb->Attachment[BUFFER_FRONT_RIGHT].Type == GL_NONE)
+         return &fb->Attachment[BUFFER_BACK_RIGHT];
+      else
+         return &fb->Attachment[BUFFER_FRONT_RIGHT];
    case GL_BACK_LEFT:
       return &fb->Attachment[BUFFER_BACK_LEFT];
    case GL_BACK_RIGHT:
@@ -389,7 +409,8 @@ driver_RenderTexture_is_safe(const struct gl_renderbuffer_attachment *att)
    const struct gl_texture_image *const texImage =
       att->Texture->Image[att->CubeMapFace][att->TextureLevel];
 
-   if (texImage->Width == 0 || texImage->Height == 0 || texImage->Depth == 0)
+   if (!texImage ||
+       texImage->Width == 0 || texImage->Height == 0 || texImage->Depth == 0)
       return false;
 
    if ((texImage->TexObject->Target == GL_TEXTURE_1D_ARRAY
@@ -430,7 +451,7 @@ _mesa_update_texture_renderbuffer(struct gl_context *ctx,
          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()");
          return;
       }
-      _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
+      att->Renderbuffer = rb;
 
       /* This can't get called on a texture renderbuffer, so set it to NULL
        * for clarity compared to user renderbuffers.
@@ -530,13 +551,13 @@ _mesa_FramebufferRenderbuffer_sw(struct gl_context *ctx,
 
    mtx_lock(&fb->Mutex);
 
-   att = get_attachment(ctx, fb, attachment);
+   att = get_attachment(ctx, fb, attachment, NULL);
    assert(att);
    if (rb) {
       set_renderbuffer_attachment(ctx, att, rb);
       if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
          /* do stencil attachment here (depth already done above) */
-         att = get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
+         att = get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT, NULL);
          assert(att);
          set_renderbuffer_attachment(ctx, att, rb);
       }
@@ -546,7 +567,7 @@ _mesa_FramebufferRenderbuffer_sw(struct gl_context *ctx,
       remove_attachment(ctx, att);
       if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
          /* detach stencil (depth was detached above) */
-         att = get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
+         att = get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT, NULL);
          assert(att);
          remove_attachment(ctx, att);
       }
@@ -811,7 +832,7 @@ test_attachment_completeness(const struct gl_context *ctx, GLenum format,
          break;
       }
 
-      baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
+      baseFormat = texImage->_BaseFormat;
 
       if (format == GL_COLOR) {
          if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
@@ -868,8 +889,7 @@ test_attachment_completeness(const struct gl_context *ctx, GLenum format,
       }
    }
    else if (att->Type == GL_RENDERBUFFER_EXT) {
-      const GLenum baseFormat =
-         _mesa_get_format_base_format(att->Renderbuffer->Format);
+      const GLenum baseFormat = att->Renderbuffer->_BaseFormat;
 
       assert(att->Renderbuffer);
       if (!att->Renderbuffer->InternalFormat ||
@@ -957,6 +977,8 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    fb->Height = 0;
    fb->_AllColorBuffersFixedPoint = GL_TRUE;
    fb->_HasSNormOrFloatColorBuffer = GL_FALSE;
+   fb->_HasAttachments = true;
+   fb->_IntegerBuffers = 0;
 
    /* Start at -2 to more easily loop over all attachment points.
     *  -2: depth buffer
@@ -1077,13 +1099,14 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
          continue;
       }
 
-      /* check if integer color */
-      fb->_IntegerColor = _mesa_is_format_integer_color(attFormat);
-
-      /* Update _AllColorBuffersFixedPoint and _HasSNormOrFloatColorBuffer. */
+      /* Update flags describing color buffer datatypes */
       if (i >= 0) {
          GLenum type = _mesa_get_format_datatype(attFormat);
 
+         /* check if integer color */
+         if (_mesa_is_format_integer_color(attFormat))
+            fb->_IntegerBuffers |= (1 << i);
+
          fb->_AllColorBuffersFixedPoint =
             fb->_AllColorBuffersFixedPoint &&
             (type == GL_UNSIGNED_NORMALIZED || type == GL_SIGNED_NORMALIZED);
@@ -1155,14 +1178,48 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
       } else if (att_layer_count > max_layer_count) {
          max_layer_count = att_layer_count;
       }
+
+      /*
+       * The extension GL_ARB_framebuffer_no_attachments places additional
+       * requirement on each attachment. Those additional requirements are
+       * tighter that those of previous versions of GL. In interest of better
+       * compatibility, we will not enforce these restrictions. For the record
+       * those additional restrictions are quoted below:
+       *
+       * "The width and height of image are greater than zero and less than or
+       *  equal to the values of the implementation-dependent limits
+       *  MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
+       *
+       * "If <image> is a three-dimensional texture or a one- or two-dimensional
+       *  array texture and the attachment is layered, the depth or layer count
+       *  of the texture is less than or equal to the implementation-dependent
+       *  limit MAX_FRAMEBUFFER_LAYERS."
+       *
+       * "If image has multiple samples, its sample count is less than or equal
+       *  to the value of the implementation-dependent limit
+       *  MAX_FRAMEBUFFER_SAMPLES."
+       *
+       * The same requirements are also in place for GL 4.5,
+       * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
+       */
    }
 
    fb->MaxNumLayers = max_layer_count;
 
    if (numImages == 0) {
-      fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
-      fbo_incomplete(ctx, "no attachments", -1);
-      return;
+      fb->_HasAttachments = false;
+
+      if (!ctx->Extensions.ARB_framebuffer_no_attachments) {
+         fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
+         fbo_incomplete(ctx, "no attachments", -1);
+         return;
+      }
+
+      if (fb->DefaultGeometry.Width == 0 || fb->DefaultGeometry.Height == 0) {
+         fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
+         fbo_incomplete(ctx, "no attachments and default width or height is 0", -1);
+         return;
+      }
    }
 
    if (_mesa_is_desktop_gl(ctx) && !ctx->Extensions.ARB_ES2_compatibility) {
@@ -1170,7 +1227,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
       for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
          if (fb->ColorDrawBuffer[j] != GL_NONE) {
             const struct gl_renderbuffer_attachment *att
-               = get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
+               = get_attachment(ctx, fb, fb->ColorDrawBuffer[j], NULL);
             assert(att);
             if (att->Type == GL_NONE) {
                fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
@@ -1183,7 +1240,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
       /* Check that the ReadBuffer is present */
       if (fb->ColorReadBuffer != GL_NONE) {
          const struct gl_renderbuffer_attachment *att
-            = get_attachment(ctx, fb, fb->ColorReadBuffer);
+            = get_attachment(ctx, fb, fb->ColorReadBuffer, NULL);
          assert(att);
          if (att->Type == GL_NONE) {
             fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
@@ -1218,42 +1275,42 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
       ctx->Driver.ValidateFramebuffer(ctx, fb);
       if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
          fbo_incomplete(ctx, "driver marked FBO as incomplete", -1);
+         return;
       }
    }
 
-   if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
-      /*
-       * Note that if ARB_framebuffer_object is supported and the attached
-       * renderbuffers/textures are different sizes, the framebuffer
-       * width/height will be set to the smallest width/height.
-       */
+   /*
+    * Note that if ARB_framebuffer_object is supported and the attached
+    * renderbuffers/textures are different sizes, the framebuffer
+    * width/height will be set to the smallest width/height.
+    */
+   if (numImages != 0) {
       fb->Width = minWidth;
       fb->Height = minHeight;
-
-      /* finally, update the visual info for the framebuffer */
-      _mesa_update_framebuffer_visual(ctx, fb);
    }
+
+   /* finally, update the visual info for the framebuffer */
+   _mesa_update_framebuffer_visual(ctx, fb);
 }
 
 
 GLboolean GLAPIENTRY
 _mesa_IsRenderbuffer(GLuint renderbuffer)
 {
+   struct gl_renderbuffer *rb;
+
    GET_CURRENT_CONTEXT(ctx);
+
    ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-   if (renderbuffer) {
-      struct gl_renderbuffer *rb =
-         _mesa_lookup_renderbuffer(ctx, renderbuffer);
-      if (rb != NULL && rb != &DummyRenderbuffer)
-         return GL_TRUE;
-   }
-   return GL_FALSE;
+
+   rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+   return rb != NULL && rb != &DummyRenderbuffer;
 }
 
 
 static struct gl_renderbuffer *
-allocate_renderbuffer(struct gl_context *ctx, GLuint renderbuffer,
-                      const char *func)
+allocate_renderbuffer_locked(struct gl_context *ctx, GLuint renderbuffer,
+                             const char *func)
 {
    struct gl_renderbuffer *newRb;
 
@@ -1264,10 +1321,7 @@ allocate_renderbuffer(struct gl_context *ctx, GLuint renderbuffer,
       return NULL;
    }
    assert(newRb->AllocStorage);
-   mtx_lock(&ctx->Shared->Mutex);
-   _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb);
-   newRb->RefCount = 1; /* referenced by hash table */
-   mtx_unlock(&ctx->Shared->Mutex);
+   _mesa_HashInsertLocked(ctx->Shared->RenderBuffers, renderbuffer, newRb);
 
    return newRb;
 }
@@ -1301,7 +1355,10 @@ bind_renderbuffer(GLenum target, GLuint renderbuffer, bool allow_user_names)
       }
 
       if (!newRb) {
-         newRb = allocate_renderbuffer(ctx, renderbuffer, "glBindRenderbufferEXT");
+         _mesa_HashLockMutex(ctx->Shared->RenderBuffers);
+         newRb = allocate_renderbuffer_locked(ctx, renderbuffer,
+                                              "glBindRenderbufferEXT");
+         _mesa_HashUnlockMutex(ctx->Shared->RenderBuffers);
       }
    }
    else {
@@ -1334,6 +1391,203 @@ _mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
    bind_renderbuffer(target, renderbuffer, true);
 }
 
+/**
+ * ARB_framebuffer_no_attachment - Application passes requested param's
+ * here. NOTE: NumSamples requested need not be _NumSamples which is
+ * what the hw supports.
+ */
+static void
+framebuffer_parameteri(struct gl_context *ctx, struct gl_framebuffer *fb,
+                       GLenum pname, GLint param, const char *func)
+{
+   switch (pname) {
+   case GL_FRAMEBUFFER_DEFAULT_WIDTH:
+      if (param < 0 || param > ctx->Const.MaxFramebufferWidth)
+        _mesa_error(ctx, GL_INVALID_VALUE, "%s", func);
+      else
+         fb->DefaultGeometry.Width = param;
+      break;
+   case GL_FRAMEBUFFER_DEFAULT_HEIGHT:
+      if (param < 0 || param > ctx->Const.MaxFramebufferHeight)
+        _mesa_error(ctx, GL_INVALID_VALUE, "%s", func);
+      else
+         fb->DefaultGeometry.Height = param;
+      break;
+   case GL_FRAMEBUFFER_DEFAULT_LAYERS:
+     /*
+      * According to the OpenGL ES 3.1 specification section 9.2.1, the
+      * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
+      */
+      if (_mesa_is_gles31(ctx) && !ctx->Extensions.OES_geometry_shader) {
+         _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", func, pname);
+         break;
+      }
+      if (param < 0 || param > ctx->Const.MaxFramebufferLayers)
+         _mesa_error(ctx, GL_INVALID_VALUE, "%s", func);
+      else
+         fb->DefaultGeometry.Layers = param;
+      break;
+   case GL_FRAMEBUFFER_DEFAULT_SAMPLES:
+      if (param < 0 || param > ctx->Const.MaxFramebufferSamples)
+        _mesa_error(ctx, GL_INVALID_VALUE, "%s", func);
+      else
+        fb->DefaultGeometry.NumSamples = param;
+      break;
+   case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS:
+      fb->DefaultGeometry.FixedSampleLocations = param;
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "%s(pname=0x%x)", func, pname);
+   }
+
+   invalidate_framebuffer(fb);
+   ctx->NewState |= _NEW_BUFFERS;
+}
+
+void GLAPIENTRY
+_mesa_FramebufferParameteri(GLenum target, GLenum pname, GLint param)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   struct gl_framebuffer *fb;
+
+   if (!ctx->Extensions.ARB_framebuffer_no_attachments) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glFramebufferParameteriv not supported "
+                  "(ARB_framebuffer_no_attachments not implemented)");
+      return;
+   }
+
+   fb = get_framebuffer_target(ctx, target);
+   if (!fb) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glFramebufferParameteri(target=0x%x)", target);
+      return;
+   }
+
+   /* check framebuffer binding */
+   if (_mesa_is_winsys_fbo(fb)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glFramebufferParameteri");
+      return;
+   }
+
+   framebuffer_parameteri(ctx, fb, pname, param, "glFramebufferParameteri");
+}
+
+static bool
+_pname_valid_for_default_framebuffer(struct gl_context *ctx,
+                                     GLenum pname)
+{
+   if (!_mesa_is_desktop_gl(ctx))
+      return false;
+
+   switch (pname) {
+   case GL_DOUBLEBUFFER:
+   case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
+   case GL_IMPLEMENTATION_COLOR_READ_TYPE:
+   case GL_SAMPLES:
+   case GL_SAMPLE_BUFFERS:
+   case GL_STEREO:
+      return true;
+   default:
+      return false;
+   }
+}
+
+static void
+get_framebuffer_parameteriv(struct gl_context *ctx, struct gl_framebuffer *fb,
+                            GLenum pname, GLint *params, const char *func)
+{
+   /* From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries:
+    *
+    *    "An INVALID_OPERATION error is generated by GetFramebufferParameteriv
+    *     if the default framebuffer is bound to target and pname is not one
+    *     of the accepted values from table 23.73, other than
+    *     SAMPLE_POSITION."
+    *
+    * For OpenGL ES, using default framebuffer still raises INVALID_OPERATION
+    * for any pname.
+    */
+   if (_mesa_is_winsys_fbo(fb) &&
+       !_pname_valid_for_default_framebuffer(ctx, pname)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "%s(invalid pname=0x%x for default framebuffer)", func, pname);
+      return;
+   }
+
+   switch (pname) {
+   case GL_FRAMEBUFFER_DEFAULT_WIDTH:
+      *params = fb->DefaultGeometry.Width;
+      break;
+   case GL_FRAMEBUFFER_DEFAULT_HEIGHT:
+      *params = fb->DefaultGeometry.Height;
+      break;
+   case GL_FRAMEBUFFER_DEFAULT_LAYERS:
+      /*
+       * According to the OpenGL ES 3.1 specification section 9.2.3, the
+       * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
+       */
+      if (_mesa_is_gles31(ctx) && !ctx->Extensions.OES_geometry_shader) {
+         _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", func, pname);
+         break;
+      }
+      *params = fb->DefaultGeometry.Layers;
+      break;
+   case GL_FRAMEBUFFER_DEFAULT_SAMPLES:
+      *params = fb->DefaultGeometry.NumSamples;
+      break;
+   case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS:
+      *params = fb->DefaultGeometry.FixedSampleLocations;
+      break;
+   case GL_DOUBLEBUFFER:
+      *params = fb->Visual.doubleBufferMode;
+      break;
+   case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
+      *params = _mesa_get_color_read_format(ctx, fb, func);
+      break;
+   case GL_IMPLEMENTATION_COLOR_READ_TYPE:
+      *params = _mesa_get_color_read_type(ctx, fb, func);
+      break;
+   case GL_SAMPLES:
+      *params = _mesa_geometric_samples(fb);
+      break;
+   case GL_SAMPLE_BUFFERS:
+      *params = _mesa_geometric_samples(fb) > 0;
+      break;
+   case GL_STEREO:
+      *params = fb->Visual.stereoMode;
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "%s(pname=0x%x)", func, pname);
+   }
+}
+
+void GLAPIENTRY
+_mesa_GetFramebufferParameteriv(GLenum target, GLenum pname, GLint *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   struct gl_framebuffer *fb;
+
+   if (!ctx->Extensions.ARB_framebuffer_no_attachments) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glGetFramebufferParameteriv not supported "
+                  "(ARB_framebuffer_no_attachments not implemented)");
+      return;
+   }
+
+   fb = get_framebuffer_target(ctx, target);
+   if (!fb) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glGetFramebufferParameteriv(target=0x%x)", target);
+      return;
+   }
+
+   get_framebuffer_parameteriv(ctx, fb, pname, params,
+                               "glGetFramebufferParameteriv");
+}
+
 
 /**
  * Remove the specified renderbuffer or texture from any attachment point in
@@ -1451,14 +1705,11 @@ create_render_buffers(struct gl_context *ctx, GLsizei n, GLuint *renderbuffers,
    GLuint first;
    GLint i;
 
-   if (n < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(n<0)", func);
-      return;
-   }
-
    if (!renderbuffers)
       return;
 
+   _mesa_HashLockMutex(ctx->Shared->RenderBuffers);
+
    first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n);
 
    for (i = 0; i < n; i++) {
@@ -1466,19 +1717,35 @@ create_render_buffers(struct gl_context *ctx, GLsizei n, GLuint *renderbuffers,
       renderbuffers[i] = name;
 
       if (dsa) {
-         allocate_renderbuffer(ctx, name, func);
+         allocate_renderbuffer_locked(ctx, name, func);
       } else {
          /* insert a dummy renderbuffer into the hash table */
-         mtx_lock(&ctx->Shared->Mutex);
-         _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer);
-         mtx_unlock(&ctx->Shared->Mutex);
+         _mesa_HashInsertLocked(ctx->Shared->RenderBuffers, name,
+                                &DummyRenderbuffer);
       }
    }
+
+   _mesa_HashUnlockMutex(ctx->Shared->RenderBuffers);
+}
+
+
+static void
+create_render_buffers_err(struct gl_context *ctx, GLsizei n,
+                          GLuint *renderbuffers, bool dsa)
+{
+   const char *func = dsa ? "glCreateRenderbuffers" : "glGenRenderbuffers";
+
+   if (n < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(n<0)", func);
+      return;
+   }
+
+   create_render_buffers(ctx, n, renderbuffers, dsa);
 }
 
 
 void GLAPIENTRY
-_mesa_GenRenderbuffers(GLsizei n, GLuint *renderbuffers)
+_mesa_GenRenderbuffers_no_error(GLsizei n, GLuint *renderbuffers)
 {
    GET_CURRENT_CONTEXT(ctx);
    create_render_buffers(ctx, n, renderbuffers, false);
@@ -1486,13 +1753,29 @@ _mesa_GenRenderbuffers(GLsizei n, GLuint *renderbuffers)
 
 
 void GLAPIENTRY
-_mesa_CreateRenderbuffers(GLsizei n, GLuint *renderbuffers)
+_mesa_GenRenderbuffers(GLsizei n, GLuint *renderbuffers)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   create_render_buffers_err(ctx, n, renderbuffers, false);
+}
+
+
+void GLAPIENTRY
+_mesa_CreateRenderbuffers_no_error(GLsizei n, GLuint *renderbuffers)
 {
    GET_CURRENT_CONTEXT(ctx);
    create_render_buffers(ctx, n, renderbuffers, true);
 }
 
 
+void GLAPIENTRY
+_mesa_CreateRenderbuffers(GLsizei n, GLuint *renderbuffers)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   create_render_buffers_err(ctx, n, renderbuffers, true);
+}
+
+
 /**
  * Given an internal format token for a render buffer, return the
  * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
@@ -1828,53 +2111,21 @@ invalidate_rb(GLuint key, void *data, void *userData)
 /** sentinal value, see below */
 #define NO_SAMPLES 1000
 
-
-/**
- * Helper function used by renderbuffer_storage_direct() and
- * renderbuffer_storage_target().
- * samples will be NO_SAMPLES if called by a non-multisample function.
- */
-static void
-renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
-                     GLenum internalFormat, GLsizei width,
-                     GLsizei height, GLsizei samples, const char *func)
+void
+_mesa_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
+                           GLenum internalFormat, GLsizei width,
+                           GLsizei height, GLsizei samples)
 {
-   GLenum baseFormat;
-   GLenum sample_count_error;
-
-   baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
-   if (baseFormat == 0) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat=%s)",
-                  func, _mesa_lookup_enum_by_nr(internalFormat));
-      return;
-   }
-
-   if (width < 0 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(invalid width %d)", func,
-                  width);
-      return;
-   }
-
-   if (height < 0 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(invalid height %d)", func,
-                  height);
-      return;
-   }
+   const GLenum baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
 
-   if (samples == NO_SAMPLES) {
-      /* NumSamples == 0 indicates non-multisampling */
-      samples = 0;
-   }
-   else {
-      /* check the sample count;
-       * note: driver may choose to use more samples than what's requested
-       */
-      sample_count_error = _mesa_check_sample_count(ctx, GL_RENDERBUFFER,
-            internalFormat, samples);
-      if (sample_count_error != GL_NO_ERROR) {
-         _mesa_error(ctx, sample_count_error, "%s(samples)", func);
-         return;
-      }
+   assert(baseFormat != 0);
+   assert(width >= 0 && width <= (GLsizei) ctx->Const.MaxRenderbufferSize);
+   assert(height >= 0 && height <= (GLsizei) ctx->Const.MaxRenderbufferSize);
+   assert(samples != NO_SAMPLES);
+   if (samples != 0) {
+      assert(samples > 0);
+      assert(_mesa_check_sample_count(ctx, GL_RENDERBUFFER,
+                                      internalFormat, samples) == GL_NO_ERROR);
    }
 
    FLUSH_VERTICES(ctx, _NEW_BUFFERS);
@@ -1919,39 +2170,100 @@ renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
 }
 
 /**
- * Helper function used by _mesa_NamedRenderbufferStorage*().
+ * Helper function used by renderbuffer_storage_direct() and
+ * renderbuffer_storage_target().
  * samples will be NO_SAMPLES if called by a non-multisample function.
  */
 static void
-renderbuffer_storage_named(GLuint renderbuffer, GLenum internalFormat,
-                           GLsizei width, GLsizei height, GLsizei samples,
-                           const char *func)
+renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
+                     GLenum internalFormat, GLsizei width,
+                     GLsizei height, GLsizei samples, const char *func)
 {
-   GET_CURRENT_CONTEXT(ctx);
+   GLenum baseFormat;
+   GLenum sample_count_error;
 
-   if (MESA_VERBOSE & VERBOSE_API) {
-      if (samples == NO_SAMPLES)
-         _mesa_debug(ctx, "%s(%u, %s, %d, %d)\n",
-                     func, renderbuffer,
-                     _mesa_lookup_enum_by_nr(internalFormat),
-                     width, height);
-      else
-         _mesa_debug(ctx, "%s(%u, %s, %d, %d, %d)\n",
-                     func, renderbuffer,
-                     _mesa_lookup_enum_by_nr(internalFormat),
-                     width, height, samples);
+   baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
+   if (baseFormat == 0) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat=%s)",
+                  func, _mesa_enum_to_string(internalFormat));
+      return;
    }
 
-   struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
-   if (!rb || rb == &DummyRenderbuffer) {
-      /* ID was reserved, but no real renderbuffer object made yet */
-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(invalid renderbuffer %u)",
-                  func, renderbuffer);
+   if (width < 0 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(invalid width %d)", func,
+                  width);
       return;
    }
 
-   renderbuffer_storage(ctx, rb, internalFormat, width, height, samples, func);
-}
+   if (height < 0 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(invalid height %d)", func,
+                  height);
+      return;
+   }
+
+   if (samples == NO_SAMPLES) {
+      /* NumSamples == 0 indicates non-multisampling */
+      samples = 0;
+   }
+   else {
+      /* check the sample count;
+       * note: driver may choose to use more samples than what's requested
+       */
+      sample_count_error = _mesa_check_sample_count(ctx, GL_RENDERBUFFER,
+            internalFormat, samples);
+
+      /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
+       *
+       * "If a negative number is provided where an argument of type sizei or
+       * sizeiptr is specified, the error INVALID VALUE is generated."
+       */
+      if (samples < 0) {
+         sample_count_error = GL_INVALID_VALUE;
+      }
+
+      if (sample_count_error != GL_NO_ERROR) {
+         _mesa_error(ctx, sample_count_error, "%s(samples=%d)", func, samples);
+         return;
+      }
+   }
+
+   _mesa_renderbuffer_storage(ctx, rb, internalFormat, width, height, samples);
+}
+
+/**
+ * Helper function used by _mesa_NamedRenderbufferStorage*().
+ * samples will be NO_SAMPLES if called by a non-multisample function.
+ */
+static void
+renderbuffer_storage_named(GLuint renderbuffer, GLenum internalFormat,
+                           GLsizei width, GLsizei height, GLsizei samples,
+                           const char *func)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (MESA_VERBOSE & VERBOSE_API) {
+      if (samples == NO_SAMPLES)
+         _mesa_debug(ctx, "%s(%u, %s, %d, %d)\n",
+                     func, renderbuffer,
+                     _mesa_enum_to_string(internalFormat),
+                     width, height);
+      else
+         _mesa_debug(ctx, "%s(%u, %s, %d, %d, %d)\n",
+                     func, renderbuffer,
+                     _mesa_enum_to_string(internalFormat),
+                     width, height, samples);
+   }
+
+   struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+   if (!rb || rb == &DummyRenderbuffer) {
+      /* ID was reserved, but no real renderbuffer object made yet */
+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(invalid renderbuffer %u)",
+                  func, renderbuffer);
+      return;
+   }
+
+   renderbuffer_storage(ctx, rb, internalFormat, width, height, samples, func);
+}
 
 /**
  * Helper function used by _mesa_RenderbufferStorage() and
@@ -1969,14 +2281,14 @@ renderbuffer_storage_target(GLenum target, GLenum internalFormat,
       if (samples == NO_SAMPLES)
          _mesa_debug(ctx, "%s(%s, %s, %d, %d)\n",
                      func,
-                     _mesa_lookup_enum_by_nr(target),
-                     _mesa_lookup_enum_by_nr(internalFormat),
+                     _mesa_enum_to_string(target),
+                     _mesa_enum_to_string(internalFormat),
                      width, height);
       else
          _mesa_debug(ctx, "%s(%s, %s, %d, %d, %d)\n",
                      func,
-                     _mesa_lookup_enum_by_nr(target),
-                     _mesa_lookup_enum_by_nr(internalFormat),
+                     _mesa_enum_to_string(target),
+                     _mesa_enum_to_string(internalFormat),
                      width, height, samples);
    }
 
@@ -2149,7 +2461,7 @@ get_render_buffer_parameteriv(struct gl_context *ctx,
       /* fallthrough */
    default:
       _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid pname=%s)", func,
-                  _mesa_lookup_enum_by_nr(pname));
+                  _mesa_enum_to_string(pname));
       return;
    }
 }
@@ -2263,7 +2575,6 @@ static void
 bind_framebuffer(GLenum target, GLuint framebuffer, bool allow_user_names)
 {
    struct gl_framebuffer *newDrawFb, *newReadFb;
-   struct gl_framebuffer *oldDrawFb, *oldReadFb;
    GLboolean bindReadBuf, bindDrawBuf;
    GET_CURRENT_CONTEXT(ctx);
 
@@ -2317,18 +2628,23 @@ bind_framebuffer(GLenum target, GLuint framebuffer, bool allow_user_names)
       newReadFb = ctx->WinSysReadBuffer;
    }
 
-   assert(newDrawFb);
-   assert(newDrawFb != &DummyFramebuffer);
+   _mesa_bind_framebuffers(ctx,
+                           bindDrawBuf ? newDrawFb : ctx->DrawBuffer,
+                           bindReadBuf ? newReadFb : ctx->ReadBuffer);
+}
 
-   /* save pointers to current/old framebuffers */
-   oldDrawFb = ctx->DrawBuffer;
-   oldReadFb = ctx->ReadBuffer;
+void
+_mesa_bind_framebuffers(struct gl_context *ctx,
+                        struct gl_framebuffer *newDrawFb,
+                        struct gl_framebuffer *newReadFb)
+{
+   struct gl_framebuffer *const oldDrawFb = ctx->DrawBuffer;
+   struct gl_framebuffer *const oldReadFb = ctx->ReadBuffer;
+   const bool bindDrawBuf = oldDrawFb != newDrawFb;
+   const bool bindReadBuf = oldReadFb != newReadFb;
 
-   /* check if really changing bindings */
-   if (oldDrawFb == newDrawFb)
-      bindDrawBuf = GL_FALSE;
-   if (oldReadFb == newReadFb)
-      bindReadBuf = GL_FALSE;
+   assert(newDrawFb);
+   assert(newDrawFb != &DummyFramebuffer);
 
    /*
     * OK, now bind the new Draw/Read framebuffers, if they're changing.
@@ -2365,7 +2681,12 @@ bind_framebuffer(GLenum target, GLuint framebuffer, bool allow_user_names)
    }
 
    if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) {
-      ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb);
+      /* The few classic drivers that actually hook this function really only
+       * want to know if the draw framebuffer changed.
+       */
+      ctx->Driver.BindFramebuffer(ctx,
+                                  bindDrawBuf ? GL_FRAMEBUFFER : GL_READ_FRAMEBUFFER,
+                                  newDrawFb, newReadFb);
    }
 }
 
@@ -2462,6 +2783,8 @@ create_framebuffers(GLsizei n, GLuint *framebuffers, bool dsa)
    if (!framebuffers)
       return;
 
+   _mesa_HashLockMutex(ctx->Shared->FrameBuffers);
+
    first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n);
 
    for (i = 0; i < n; i++) {
@@ -2471,6 +2794,7 @@ create_framebuffers(GLsizei n, GLuint *framebuffers, bool dsa)
       if (dsa) {
          fb = ctx->Driver.NewFramebuffer(ctx, framebuffers[i]);
          if (!fb) {
+            _mesa_HashUnlockMutex(ctx->Shared->FrameBuffers);
             _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s", func);
             return;
          }
@@ -2478,10 +2802,10 @@ create_framebuffers(GLsizei n, GLuint *framebuffers, bool dsa)
       else
          fb = &DummyFramebuffer;
 
-      mtx_lock(&ctx->Shared->Mutex);
-      _mesa_HashInsert(ctx->Shared->FrameBuffers, name, fb);
-      mtx_unlock(&ctx->Shared->Mutex);
+      _mesa_HashInsertLocked(ctx->Shared->FrameBuffers, name, fb);
    }
+
+   _mesa_HashUnlockMutex(ctx->Shared->FrameBuffers);
 }
 
 
@@ -2524,6 +2848,16 @@ _mesa_check_framebuffer_status(struct gl_context *ctx,
 }
 
 
+GLenum GLAPIENTRY
+_mesa_CheckFramebufferStatus_no_error(GLenum target)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   struct gl_framebuffer *fb = get_framebuffer_target(ctx, target);
+   return _mesa_check_framebuffer_status(ctx, fb);
+}
+
+
 GLenum GLAPIENTRY
 _mesa_CheckFramebufferStatus(GLenum target)
 {
@@ -2532,13 +2866,13 @@ _mesa_CheckFramebufferStatus(GLenum target)
 
    if (MESA_VERBOSE & VERBOSE_API)
       _mesa_debug(ctx, "glCheckFramebufferStatus(%s)\n",
-                  _mesa_lookup_enum_by_nr(target));
+                  _mesa_enum_to_string(target));
 
    fb = get_framebuffer_target(ctx, target);
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glCheckFramebufferStatus(invalid target %s)",
-                  _mesa_lookup_enum_by_nr(target));
+                  _mesa_enum_to_string(target));
       return 0;
    }
 
@@ -2570,7 +2904,7 @@ _mesa_CheckNamedFramebufferStatus(GLuint framebuffer, GLenum target)
       default:
          _mesa_error(ctx, GL_INVALID_ENUM,
                      "glCheckNamedFramebufferStatus(invalid target %s)",
-                     _mesa_lookup_enum_by_nr(target));
+                     _mesa_enum_to_string(target));
          return 0;
    }
 
@@ -2606,7 +2940,19 @@ reuse_framebuffer_texture_attachment(struct gl_framebuffer *fb,
    dst_att->Type = src_att->Type;
    dst_att->Complete = src_att->Complete;
    dst_att->TextureLevel = src_att->TextureLevel;
+   dst_att->CubeMapFace = src_att->CubeMapFace;
    dst_att->Zoffset = src_att->Zoffset;
+   dst_att->Layered = src_att->Layered;
+}
+
+
+static struct gl_texture_object *
+get_texture_for_framebuffer(struct gl_context *ctx, GLuint texture)
+{
+   if (!texture)
+      return NULL;
+
+   return _mesa_lookup_texture(ctx, texture);
 }
 
 
@@ -2620,9 +2966,9 @@ reuse_framebuffer_texture_attachment(struct gl_framebuffer *fb,
  * \return true if no errors, false if errors
  */
 static bool
-get_texture_for_framebuffer(struct gl_context *ctx, GLuint texture,
-                            bool layered, const char *caller,
-                            struct gl_texture_object **texObj)
+get_texture_for_framebuffer_err(struct gl_context *ctx, GLuint texture,
+                                bool layered, const char *caller,
+                                struct gl_texture_object **texObj)
 {
    *texObj = NULL; /* This will get returned if texture = 0. */
 
@@ -2689,7 +3035,7 @@ check_layered_texture_target(struct gl_context *ctx, GLenum target,
 
    _mesa_error(ctx, GL_INVALID_OPERATION,
                "%s(invalid texture target %s)", caller,
-               _mesa_lookup_enum_by_nr(target));
+               _mesa_enum_to_string(target));
    return false;
 }
 
@@ -2731,7 +3077,7 @@ check_texture_target(struct gl_context *ctx, GLenum target,
 
    _mesa_error(ctx, GL_INVALID_OPERATION,
                "%s(invalid texture target %s)", caller,
-               _mesa_lookup_enum_by_nr(target));
+               _mesa_enum_to_string(target));
    return false;
 }
 
@@ -2748,59 +3094,55 @@ check_textarget(struct gl_context *ctx, int dims, GLenum target,
 {
    bool err = false;
 
-   switch (dims) {
-   case 1:
-      switch (textarget) {
-      case GL_TEXTURE_1D:
-         break;
-      case GL_TEXTURE_1D_ARRAY:
-         err = !ctx->Extensions.EXT_texture_array;
-         break;
-      default:
-         err = true;
-      }
+   switch (textarget) {
+   case GL_TEXTURE_1D:
+      err = dims != 1;
       break;
-   case 2:
-      switch (textarget) {
-      case GL_TEXTURE_2D:
-         break;
-      case GL_TEXTURE_RECTANGLE:
-         err = _mesa_is_gles(ctx)
-            || !ctx->Extensions.NV_texture_rectangle;
-         break;
-      case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
-      case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
-      case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
-      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
-      case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
-      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
-         err = !ctx->Extensions.ARB_texture_cube_map;
-         break;
-      case GL_TEXTURE_2D_ARRAY:
-         err = (_mesa_is_gles(ctx) && ctx->Version < 30)
-               || !ctx->Extensions.EXT_texture_array;
-         break;
-      case GL_TEXTURE_2D_MULTISAMPLE:
-      case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
-         err = _mesa_is_gles(ctx)
-               || !ctx->Extensions.ARB_texture_multisample;
-         break;
-      default:
-         err = true;
-      }
+   case GL_TEXTURE_1D_ARRAY:
+      err = dims != 1 || !ctx->Extensions.EXT_texture_array;
       break;
-   case 3:
-      if (textarget != GL_TEXTURE_3D)
-         err = true;
+   case GL_TEXTURE_2D:
+      err = dims != 2;
       break;
-   default:
+   case GL_TEXTURE_2D_ARRAY:
+      err = dims != 2 || !ctx->Extensions.EXT_texture_array ||
+            (_mesa_is_gles(ctx) && ctx->Version < 30);
+      break;
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      err = dims != 2 ||
+            !ctx->Extensions.ARB_texture_multisample ||
+            (_mesa_is_gles(ctx) && ctx->Version < 31);
+      break;
+   case GL_TEXTURE_RECTANGLE:
+      err = dims != 2 || _mesa_is_gles(ctx) ||
+            !ctx->Extensions.NV_texture_rectangle;
+      break;
+   case GL_TEXTURE_CUBE_MAP:
+   case GL_TEXTURE_CUBE_MAP_ARRAY:
       err = true;
+      break;
+   case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+      err = dims != 2 || !ctx->Extensions.ARB_texture_cube_map;
+      break;
+   case GL_TEXTURE_3D:
+      err = dims != 3;
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "%s(unknown textarget 0x%x)", caller, textarget);
+      return false;
    }
 
    if (err) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
                   "%s(invalid textarget %s)",
-                  caller, _mesa_lookup_enum_by_nr(textarget));
+                  caller, _mesa_enum_to_string(textarget));
       return false;
    }
 
@@ -2892,30 +3234,46 @@ check_level(struct gl_context *ctx, GLenum target, GLint level,
 }
 
 
-void
-_mesa_framebuffer_texture(struct gl_context *ctx, struct gl_framebuffer *fb,
-                          GLenum attachment,
-                          struct gl_texture_object *texObj, GLenum textarget,
-                          GLint level, GLuint layer, GLboolean layered,
-                          const char *caller)
+struct gl_renderbuffer_attachment *
+_mesa_get_and_validate_attachment(struct gl_context *ctx,
+                                  struct gl_framebuffer *fb,
+                                  GLenum attachment, const char *caller)
 {
-   struct gl_renderbuffer_attachment *att;
-
    /* The window-system framebuffer object is immutable */
    if (_mesa_is_winsys_fbo(fb)) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(window-system framebuffer)",
                   caller);
-      return;
+      return NULL;
    }
 
    /* Not a hash lookup, so we can afford to get the attachment here. */
-   att = get_attachment(ctx, fb, attachment);
+   bool is_color_attachment;
+   struct gl_renderbuffer_attachment *att =
+      get_attachment(ctx, fb, attachment, &is_color_attachment);
    if (att == NULL) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid attachment %s)", caller,
-                  _mesa_lookup_enum_by_nr(attachment));
-      return;
+      if (is_color_attachment) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "%s(invalid color attachment %s)", caller,
+                     _mesa_enum_to_string(attachment));
+      } else {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "%s(invalid attachment %s)", caller,
+                     _mesa_enum_to_string(attachment));
+      }
+      return NULL;
    }
 
+   return att;
+}
+
+
+void
+_mesa_framebuffer_texture(struct gl_context *ctx, struct gl_framebuffer *fb,
+                          GLenum attachment,
+                          struct gl_renderbuffer_attachment *att,
+                          struct gl_texture_object *texObj, GLenum textarget,
+                          GLint level, GLuint layer, GLboolean layered)
+{
    FLUSH_VERTICES(ctx, _NEW_BUFFERS);
 
    mtx_lock(&fb->Mutex);
@@ -2981,6 +3339,28 @@ _mesa_framebuffer_texture(struct gl_context *ctx, struct gl_framebuffer *fb,
 }
 
 
+static void
+framebuffer_texture_with_dims_no_error(GLenum target, GLenum attachment,
+                                       GLenum textarget, GLuint texture,
+                                       GLint level, GLint layer)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   /* Get the framebuffer object */
+   struct gl_framebuffer *fb = get_framebuffer_target(ctx, target);
+
+   /* Get the texture object */
+   struct gl_texture_object *texObj =
+      get_texture_for_framebuffer(ctx, texture);
+
+   struct gl_renderbuffer_attachment *att =
+      get_attachment(ctx, fb, attachment, NULL);
+
+   _mesa_framebuffer_texture(ctx, fb, attachment, att, texObj, textarget,
+                             level, layer, GL_FALSE);
+}
+
+
 static void
 framebuffer_texture_with_dims(int dims, GLenum target,
                               GLenum attachment, GLenum textarget,
@@ -2995,12 +3375,12 @@ framebuffer_texture_with_dims(int dims, GLenum target,
    fb = get_framebuffer_target(ctx, target);
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid target %s)", caller,
-                  _mesa_lookup_enum_by_nr(target));
+                  _mesa_enum_to_string(target));
       return;
    }
 
    /* Get the texture object */
-   if (!get_texture_for_framebuffer(ctx, texture, false, caller, &texObj))
+   if (!get_texture_for_framebuffer_err(ctx, texture, false, caller, &texObj))
       return;
 
    if (texObj) {
@@ -3009,13 +3389,28 @@ framebuffer_texture_with_dims(int dims, GLenum target,
 
       if ((dims == 3) && !check_layer(ctx, texObj->Target, layer, caller))
          return;
+
+      if (!check_level(ctx, textarget, level, caller))
+         return;
    }
 
-   if (!check_level(ctx, textarget, level, caller))
+   struct gl_renderbuffer_attachment *att =
+      _mesa_get_and_validate_attachment(ctx, fb, attachment, caller);
+   if (!att)
       return;
 
-   _mesa_framebuffer_texture(ctx, fb, attachment, texObj, textarget, level,
-                             layer, GL_FALSE, caller);
+   _mesa_framebuffer_texture(ctx, fb, attachment, att, texObj, textarget,
+                             level, layer, GL_FALSE);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture1D_no_error(GLenum target, GLenum attachment,
+                                    GLenum textarget, GLuint texture,
+                                    GLint level)
+{
+   framebuffer_texture_with_dims_no_error(target, attachment, textarget,
+                                          texture, level, 0);
 }
 
 
@@ -3028,6 +3423,16 @@ _mesa_FramebufferTexture1D(GLenum target, GLenum attachment,
 }
 
 
+void GLAPIENTRY
+_mesa_FramebufferTexture2D_no_error(GLenum target, GLenum attachment,
+                                    GLenum textarget, GLuint texture,
+                                    GLint level)
+{
+   framebuffer_texture_with_dims_no_error(target, attachment, textarget,
+                                          texture, level, 0);
+}
+
+
 void GLAPIENTRY
 _mesa_FramebufferTexture2D(GLenum target, GLenum attachment,
                            GLenum textarget, GLuint texture, GLint level)
@@ -3037,6 +3442,16 @@ _mesa_FramebufferTexture2D(GLenum target, GLenum attachment,
 }
 
 
+void GLAPIENTRY
+_mesa_FramebufferTexture3D_no_error(GLenum target, GLenum attachment,
+                                    GLenum textarget, GLuint texture,
+                                    GLint level, GLint layer)
+{
+   framebuffer_texture_with_dims_no_error(target, attachment, textarget,
+                                          texture, level, layer);
+}
+
+
 void GLAPIENTRY
 _mesa_FramebufferTexture3D(GLenum target, GLenum attachment,
                            GLenum textarget, GLuint texture,
@@ -3047,91 +3462,140 @@ _mesa_FramebufferTexture3D(GLenum target, GLenum attachment,
 }
 
 
-void GLAPIENTRY
-_mesa_FramebufferTextureLayer(GLenum target, GLenum attachment,
-                              GLuint texture, GLint level, GLint layer)
+static ALWAYS_INLINE void
+frame_buffer_texture(GLuint framebuffer, GLenum target,
+                     GLenum attachment, GLuint texture,
+                     GLint level, GLint layer, const char *func,
+                     bool dsa, bool no_error, bool check_layered)
 {
    GET_CURRENT_CONTEXT(ctx);
-   struct gl_framebuffer *fb;
-   struct gl_texture_object *texObj;
-   GLenum textarget = 0;
+   GLboolean layered = GL_FALSE;
 
-   const char *func = "glFramebufferTextureLayer";
+   if (!no_error && check_layered) {
+      if (!_mesa_has_geometry_shaders(ctx)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "unsupported function (%s) called", func);
+         return;
+      }
+   }
 
    /* Get the framebuffer object */
-   fb = get_framebuffer_target(ctx, target);
-   if (!fb) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glFramebufferTextureLayer(invalid target %s)",
-                  _mesa_lookup_enum_by_nr(target));
-      return;
+   struct gl_framebuffer *fb;
+   if (no_error) {
+      if (dsa) {
+         fb = _mesa_lookup_framebuffer(ctx, framebuffer);
+      } else {
+         fb = get_framebuffer_target(ctx, target);
+      }
+   } else {
+      if (dsa) {
+         fb = _mesa_lookup_framebuffer_err(ctx, framebuffer, func);
+         if (!fb)
+            return;
+      } else {
+         fb = get_framebuffer_target(ctx, target);
+         if (!fb) {
+            _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid target %s)",
+                        func, _mesa_enum_to_string(target));
+            return;
+         }
+      }
    }
 
-   /* Get the texture object */
-   if (!get_texture_for_framebuffer(ctx, texture, false, func, &texObj))
-      return;
-
-   if (texObj) {
-      if (!check_texture_target(ctx, texObj->Target, func))
+   /* Get the texture object and framebuffer attachment*/
+   struct gl_renderbuffer_attachment *att;
+   struct gl_texture_object *texObj;
+   if (no_error) {
+      texObj = get_texture_for_framebuffer(ctx, texture);
+      att = get_attachment(ctx, fb, attachment, NULL);
+   } else {
+      if (!get_texture_for_framebuffer_err(ctx, texture, check_layered, func,
+                                           &texObj))
          return;
 
-      if (!check_layer(ctx, texObj->Target, layer, func))
+      att = _mesa_get_and_validate_attachment(ctx, fb, attachment, func);
+      if (!att)
          return;
+   }
 
-      if (!check_level(ctx, texObj->Target, level, func))
-         return;
+   GLenum textarget = 0;
+   if (texObj) {
+      if (check_layered) {
+         /* We do this regardless of no_error because this sets layered */
+         if (!check_layered_texture_target(ctx, texObj->Target, func,
+                                           &layered))
+            return;
+      }
+
+      if (!no_error) {
+         if (!check_layered) {
+            if (!check_texture_target(ctx, texObj->Target, func))
+               return;
+
+            if (!check_layer(ctx, texObj->Target, layer, func))
+               return;
+         }
 
-      if (texObj->Target == GL_TEXTURE_CUBE_MAP) {
+         if (!check_level(ctx, texObj->Target, level, func))
+            return;
+      }
+
+      if (!check_layered && texObj->Target == GL_TEXTURE_CUBE_MAP) {
          assert(layer >= 0 && layer < 6);
          textarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X + layer;
          layer = 0;
       }
    }
 
-   _mesa_framebuffer_texture(ctx, fb, attachment, texObj, textarget, level,
-                             layer, GL_FALSE, func);
+   _mesa_framebuffer_texture(ctx, fb, attachment, att, texObj, textarget,
+                             level, layer, layered);
 }
 
-
 void GLAPIENTRY
-_mesa_NamedFramebufferTextureLayer(GLuint framebuffer, GLenum attachment,
-                                   GLuint texture, GLint level, GLint layer)
+_mesa_FramebufferTextureLayer_no_error(GLenum target, GLenum attachment,
+                                       GLuint texture, GLint level,
+                                       GLint layer)
 {
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_framebuffer *fb;
-   struct gl_texture_object *texObj;
-   GLenum textarget = 0;
+   frame_buffer_texture(0, target, attachment, texture, level, layer,
+                        "glFramebufferTextureLayer", false, true, false);
+}
 
-   const char *func = "glNamedFramebufferTextureLayer";
 
-   /* Get the framebuffer object */
-   fb = _mesa_lookup_framebuffer_err(ctx, framebuffer, func);
-   if (!fb)
-      return;
+void GLAPIENTRY
+_mesa_FramebufferTextureLayer(GLenum target, GLenum attachment,
+                              GLuint texture, GLint level, GLint layer)
+{
+   frame_buffer_texture(0, target, attachment, texture, level, layer,
+                        "glFramebufferTextureLayer", false, false, false);
+}
 
-   /* Get the texture object */
-   if (!get_texture_for_framebuffer(ctx, texture, false, func, &texObj))
-      return;
 
-   if (texObj) {
-      if (!check_texture_target(ctx, texObj->Target, func))
-         return;
+void GLAPIENTRY
+_mesa_NamedFramebufferTextureLayer_no_error(GLuint framebuffer,
+                                            GLenum attachment,
+                                            GLuint texture, GLint level,
+                                            GLint layer)
+{
+   frame_buffer_texture(framebuffer, 0, attachment, texture, level, layer,
+                        "glNamedFramebufferTextureLayer", true, true, false);
+}
 
-      if (!check_layer(ctx, texObj->Target, layer, func))
-         return;
 
-      if (!check_level(ctx, texObj->Target, level, func))
-         return;
+void GLAPIENTRY
+_mesa_NamedFramebufferTextureLayer(GLuint framebuffer, GLenum attachment,
+                                   GLuint texture, GLint level, GLint layer)
+{
+   frame_buffer_texture(framebuffer, 0, attachment, texture, level, layer,
+                        "glNamedFramebufferTextureLayer", true, false, false);
+}
 
-      if (texObj->Target == GL_TEXTURE_CUBE_MAP) {
-         assert(layer >= 0 && layer < 6);
-         textarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X + layer;
-         layer = 0;
-      }
-   }
 
-   _mesa_framebuffer_texture(ctx, fb, attachment, texObj, textarget, level,
-                             layer, GL_FALSE, func);
+void GLAPIENTRY
+_mesa_FramebufferTexture_no_error(GLenum target, GLenum attachment,
+                                  GLuint texture, GLint level)
+{
+   frame_buffer_texture(0, target, attachment, texture, level, 0,
+                        "glFramebufferTexture", false, true, true);
 }
 
 
@@ -3139,42 +3603,16 @@ void GLAPIENTRY
 _mesa_FramebufferTexture(GLenum target, GLenum attachment,
                          GLuint texture, GLint level)
 {
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_framebuffer *fb;
-   struct gl_texture_object *texObj;
-   GLboolean layered;
-
-   const char *func = "FramebufferTexture";
-
-   if (!_mesa_has_geometry_shaders(ctx)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "unsupported function (glFramebufferTexture) called");
-      return;
-   }
-
-   /* Get the framebuffer object */
-   fb = get_framebuffer_target(ctx, target);
-   if (!fb) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glFramebufferTexture(invalid target %s)",
-                  _mesa_lookup_enum_by_nr(target));
-      return;
-   }
-
-   /* Get the texture object */
-   if (!get_texture_for_framebuffer(ctx, texture, true, func, &texObj))
-      return;
-
-   if (texObj) {
-      if (!check_layered_texture_target(ctx, texObj->Target, func, &layered))
-         return;
-
-      if (!check_level(ctx, texObj->Target, level, func))
-         return;
-   }
+   frame_buffer_texture(0, target, attachment, texture, level, 0,
+                        "glFramebufferTexture", false, false, true);
+}
 
-   _mesa_framebuffer_texture(ctx, fb, attachment, texObj, 0, level,
-                             0, layered, func);
+void GLAPIENTRY
+_mesa_NamedFramebufferTexture_no_error(GLuint framebuffer, GLenum attachment,
+                                       GLuint texture, GLint level)
+{
+   frame_buffer_texture(framebuffer, 0, attachment, texture, level, 0,
+                        "glNamedFramebufferTexture", true, true, true);
 }
 
 
@@ -3182,39 +3620,8 @@ void GLAPIENTRY
 _mesa_NamedFramebufferTexture(GLuint framebuffer, GLenum attachment,
                               GLuint texture, GLint level)
 {
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_framebuffer *fb;
-   struct gl_texture_object *texObj;
-   GLboolean layered;
-
-   const char *func = "glNamedFramebufferTexture";
-
-   if (!_mesa_has_geometry_shaders(ctx)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "unsupported function (glNamedFramebufferTexture) called");
-      return;
-   }
-
-   /* Get the framebuffer object */
-   fb = _mesa_lookup_framebuffer_err(ctx, framebuffer, func);
-   if (!fb)
-      return;
-
-   /* Get the texture object */
-   if (!get_texture_for_framebuffer(ctx, texture, true, func, &texObj))
-      return;
-
-   if (texObj) {
-      if (!check_layered_texture_target(ctx, texObj->Target, func,
-                                        &layered))
-         return;
-
-      if (!check_level(ctx, texObj->Target, level, func))
-         return;
-   }
-
-   _mesa_framebuffer_texture(ctx, fb, attachment, texObj, 0, level,
-                             0, layered, func);
+   frame_buffer_texture(framebuffer, 0, attachment, texture, level, 0,
+                        "glNamedFramebufferTexture", true, false, true);
 }
 
 
@@ -3222,48 +3629,129 @@ void
 _mesa_framebuffer_renderbuffer(struct gl_context *ctx,
                                struct gl_framebuffer *fb,
                                GLenum attachment,
-                               struct gl_renderbuffer *rb,
-                               const char *func)
+                               struct gl_renderbuffer *rb)
+{
+   assert(!_mesa_is_winsys_fbo(fb));
+
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   assert(ctx->Driver.FramebufferRenderbuffer);
+   ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
+
+   /* Some subsequent GL commands may depend on the framebuffer's visual
+    * after the binding is updated.  Update visual info now.
+    */
+   _mesa_update_framebuffer_visual(ctx, fb);
+}
+
+static ALWAYS_INLINE void
+framebuffer_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
+                         GLenum attachment, GLenum renderbuffertarget,
+                         GLuint renderbuffer, const char *func, bool no_error)
 {
    struct gl_renderbuffer_attachment *att;
+   struct gl_renderbuffer *rb;
+   bool is_color_attachment;
 
-   if (_mesa_is_winsys_fbo(fb)) {
-      /* Can't attach new renderbuffers to a window system framebuffer */
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "%s(window-system framebuffer)", func);
+   if (!no_error && renderbuffertarget != GL_RENDERBUFFER) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "%s(renderbuffertarget is not GL_RENDERBUFFER)", func);
       return;
    }
 
-   att = get_attachment(ctx, fb, attachment);
-   if (att == NULL) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "%s(invalid attachment %s)", func,
-                  _mesa_lookup_enum_by_nr(attachment));
-      return;
+   if (renderbuffer) {
+      if (!no_error) {
+         rb = _mesa_lookup_renderbuffer_err(ctx, renderbuffer, func);
+         if (!rb)
+            return;
+      } else {
+         rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+      }
+   } else {
+      /* remove renderbuffer attachment */
+      rb = NULL;
    }
 
-   if (attachment == GL_DEPTH_STENCIL_ATTACHMENT &&
-       rb && rb->Format != MESA_FORMAT_NONE) {
-      /* make sure the renderbuffer is a depth/stencil format */
-      const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);
-      if (baseFormat != GL_DEPTH_STENCIL) {
+   if (!no_error) {
+      if (_mesa_is_winsys_fbo(fb)) {
+         /* Can't attach new renderbuffers to a window system framebuffer */
          _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "%s(renderbuffer is not DEPTH_STENCIL format)", func);
+                     "%s(window-system framebuffer)", func);
+         return;
+      }
+
+      att = get_attachment(ctx, fb, attachment, &is_color_attachment);
+      if (att == NULL) {
+         /*
+          * From OpenGL 4.5 spec, section 9.2.7 "Attaching Renderbuffer Images
+          * to a Framebuffer":
+          *
+          *    "An INVALID_OPERATION error is generated if attachment is
+          *    COLOR_- ATTACHMENTm where m is greater than or equal to the
+          *    value of MAX_COLOR_- ATTACHMENTS ."
+          *
+          * If we are at this point, is because the attachment is not valid, so
+          * if is_color_attachment is true, is because of the previous reason.
+          */
+         if (is_color_attachment) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "%s(invalid color attachment %s)", func,
+                        _mesa_enum_to_string(attachment));
+         } else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "%s(invalid attachment %s)", func,
+                        _mesa_enum_to_string(attachment));
+         }
+
          return;
       }
+
+      if (attachment == GL_DEPTH_STENCIL_ATTACHMENT &&
+          rb && rb->Format != MESA_FORMAT_NONE) {
+         /* make sure the renderbuffer is a depth/stencil format */
+         const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);
+         if (baseFormat != GL_DEPTH_STENCIL) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "%s(renderbuffer is not DEPTH_STENCIL format)", func);
+            return;
+         }
+      }
    }
 
-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+   _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
+}
 
-   assert(ctx->Driver.FramebufferRenderbuffer);
-   ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
+static void
+framebuffer_renderbuffer_error(struct gl_context *ctx,
+                               struct gl_framebuffer *fb, GLenum attachment,
+                               GLenum renderbuffertarget,
+                               GLuint renderbuffer, const char *func)
+{
+   framebuffer_renderbuffer(ctx, fb, attachment, renderbuffertarget,
+                            renderbuffer, func, false);
+}
 
-   /* Some subsequent GL commands may depend on the framebuffer's visual
-    * after the binding is updated.  Update visual info now.
-    */
-   _mesa_update_framebuffer_visual(ctx, fb);
+static void
+framebuffer_renderbuffer_no_error(struct gl_context *ctx,
+                                  struct gl_framebuffer *fb, GLenum attachment,
+                                  GLenum renderbuffertarget,
+                                  GLuint renderbuffer, const char *func)
+{
+   framebuffer_renderbuffer(ctx, fb, attachment, renderbuffertarget,
+                            renderbuffer, func, true);
 }
 
+void GLAPIENTRY
+_mesa_FramebufferRenderbuffer_no_error(GLenum target, GLenum attachment,
+                                       GLenum renderbuffertarget,
+                                       GLuint renderbuffer)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   struct gl_framebuffer *fb = get_framebuffer_target(ctx, target);
+   framebuffer_renderbuffer_no_error(ctx, fb, attachment, renderbuffertarget,
+                                     renderbuffer, "glFramebufferRenderbuffer");
+}
 
 void GLAPIENTRY
 _mesa_FramebufferRenderbuffer(GLenum target, GLenum attachment,
@@ -3271,47 +3759,40 @@ _mesa_FramebufferRenderbuffer(GLenum target, GLenum attachment,
                               GLuint renderbuffer)
 {
    struct gl_framebuffer *fb;
-   struct gl_renderbuffer *rb;
    GET_CURRENT_CONTEXT(ctx);
 
    fb = get_framebuffer_target(ctx, target);
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glFramebufferRenderbuffer(invalid target %s)",
-                  _mesa_lookup_enum_by_nr(target));
+                  _mesa_enum_to_string(target));
       return;
    }
 
-   if (renderbuffertarget != GL_RENDERBUFFER) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glFramebufferRenderbuffer(renderbuffertarget is not "
-                  "GL_RENDERBUFFER)");
-      return;
-   }
+   framebuffer_renderbuffer_error(ctx, fb, attachment, renderbuffertarget,
+                                  renderbuffer, "glFramebufferRenderbuffer");
+}
 
-   if (renderbuffer) {
-      rb = _mesa_lookup_renderbuffer_err(ctx, renderbuffer,
-                                         "glFramebufferRenderbuffer");
-      if (!rb)
-         return;
-   }
-   else {
-      /* remove renderbuffer attachment */
-      rb = NULL;
-   }
+void GLAPIENTRY
+_mesa_NamedFramebufferRenderbuffer_no_error(GLuint framebuffer,
+                                            GLenum attachment,
+                                            GLenum renderbuffertarget,
+                                            GLuint renderbuffer)
+{
+   GET_CURRENT_CONTEXT(ctx);
 
-   _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb,
-                                  "glFramebufferRenderbuffer");
+   struct gl_framebuffer *fb = _mesa_lookup_framebuffer(ctx, framebuffer);
+   framebuffer_renderbuffer_no_error(ctx, fb, attachment, renderbuffertarget,
+                                     renderbuffer,
+                                     "glNamedFramebufferRenderbuffer");
 }
 
-
 void GLAPIENTRY
 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer, GLenum attachment,
                                    GLenum renderbuffertarget,
                                    GLuint renderbuffer)
 {
    struct gl_framebuffer *fb;
-   struct gl_renderbuffer *rb;
    GET_CURRENT_CONTEXT(ctx);
 
    fb = _mesa_lookup_framebuffer_err(ctx, framebuffer,
@@ -3319,40 +3800,38 @@ _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer, GLenum attachment,
    if (!fb)
       return;
 
-   if (renderbuffertarget != GL_RENDERBUFFER) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glNamedFramebufferRenderbuffer(renderbuffertarget is not "
-                  "GL_RENDERBUFFER)");
-      return;
-   }
-
-   if (renderbuffer) {
-      rb = _mesa_lookup_renderbuffer_err(ctx, renderbuffer,
-                                         "glNamedFramebufferRenderbuffer");
-      if (!rb)
-         return;
-   }
-   else {
-      /* remove renderbuffer attachment */
-      rb = NULL;
-   }
-
-   _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb,
+   framebuffer_renderbuffer_error(ctx, fb, attachment, renderbuffertarget,
+                                  renderbuffer,
                                   "glNamedFramebufferRenderbuffer");
 }
 
 
-void
-_mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
-                                           struct gl_framebuffer *buffer,
-                                           GLenum attachment, GLenum pname,
-                                           GLint *params, const char *caller)
+static void
+get_framebuffer_attachment_parameter(struct gl_context *ctx,
+                                     struct gl_framebuffer *buffer,
+                                     GLenum attachment, GLenum pname,
+                                     GLint *params, const char *caller)
 {
    const struct gl_renderbuffer_attachment *att;
+   bool is_color_attachment = false;
    GLenum err;
 
-   /* The error differs in GL and GLES. */
-   err = _mesa_is_desktop_gl(ctx) ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
+   /* The error code for an attachment type of GL_NONE differs between APIs.
+    *
+    * From the ES 2.0.25 specification, page 127:
+    * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
+    *  querying any other pname will generate INVALID_ENUM."
+    *
+    * From the OpenGL 3.0 specification, page 337, or identically,
+    * the OpenGL ES 3.0.4 specification, page 240:
+    *
+    * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
+    *  framebuffer is bound to target.  In this case querying pname
+    *  FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
+    *  queries will generate an INVALID_OPERATION error."
+    */
+   err = ctx->API == API_OPENGLES2 && ctx->Version < 30 ?
+      GL_INVALID_ENUM : GL_INVALID_OPERATION;
 
    if (_mesa_is_winsys_fbo(buffer)) {
       /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
@@ -3377,20 +3856,52 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
           attachment != GL_DEPTH && attachment != GL_STENCIL) {
          _mesa_error(ctx, GL_INVALID_ENUM,
                      "%s(invalid attachment %s)", caller,
-                     _mesa_lookup_enum_by_nr(attachment));
+                     _mesa_enum_to_string(attachment));
+         return;
+      }
+
+      /* The specs are not clear about how to handle
+       * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
+       * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
+       * discussed in:
+       *
+       * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
+       * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
+       */
+      if (pname == GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
+                     "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
+                     "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller);
          return;
       }
+
       /* the default / window-system FBO */
-      att = _mesa_get_fb0_attachment(ctx, buffer, attachment);
+      att = get_fb0_attachment(ctx, buffer, attachment);
    }
    else {
       /* user-created framebuffer FBO */
-      att = get_attachment(ctx, buffer, attachment);
+      att = get_attachment(ctx, buffer, attachment, &is_color_attachment);
    }
 
    if (att == NULL) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid attachment %s)", caller,
-                  _mesa_lookup_enum_by_nr(attachment));
+      /*
+       * From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries":
+       *
+       *    "An INVALID_OPERATION error is generated if a framebuffer object
+       *     is bound to target and attachment is COLOR_ATTACHMENTm where m is
+       *     greater than or equal to the value of MAX_COLOR_ATTACHMENTS."
+       *
+       * If we are at this point, is because the attachment is not valid, so
+       * if is_color_attachment is true, is because of the previous reason.
+       */
+      if (is_color_attachment) {
+         _mesa_error(ctx, GL_INVALID_OPERATION, "%s(invalid color attachment %s)",
+                     caller, _mesa_enum_to_string(attachment));
+      } else {
+         _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid attachment %s)", caller,
+                     _mesa_enum_to_string(attachment));
+      }
       return;
    }
 
@@ -3409,8 +3920,8 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
          return;
       }
       /* the depth and stencil attachments must point to the same buffer */
-      depthAtt = get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
-      stencilAtt = get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
+      depthAtt = get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT, NULL);
+      stencilAtt = get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT, NULL);
       if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {
          _mesa_error(ctx, GL_INVALID_OPERATION,
                      "%s(DEPTH/STENCIL attachments differ)", caller);
@@ -3422,8 +3933,19 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
 
    switch (pname) {
    case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
-      *params = _mesa_is_winsys_fbo(buffer)
-         ? GL_FRAMEBUFFER_DEFAULT : att->Type;
+      /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
+       *
+       * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
+       *  either no framebuffer is bound to target; or the default framebuffer
+       *  is bound, attachment is DEPTH or STENCIL, and the number of depth or
+       *  stencil bits, respectively, is zero."
+       *
+       * Note that we don't need explicit checks on DEPTH and STENCIL, because
+       * on the case the spec is pointing, att->Type is already NONE, so we
+       * just need to check att->Type.
+       */
+      *params = (_mesa_is_winsys_fbo(buffer) && att->Type != GL_NONE) ?
+         GL_FRAMEBUFFER_DEFAULT : att->Type;
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
       if (att->Type == GL_RENDERBUFFER_EXT) {
@@ -3447,7 +3969,7 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
       }
       else if (att->Type == GL_NONE) {
          _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
-                     _mesa_lookup_enum_by_nr(pname));
+                     _mesa_enum_to_string(pname));
       }
       else {
          goto invalid_pname_enum;
@@ -3464,7 +3986,7 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
       }
       else if (att->Type == GL_NONE) {
          _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
-                     _mesa_lookup_enum_by_nr(pname));
+                     _mesa_enum_to_string(pname));
       }
       else {
          goto invalid_pname_enum;
@@ -3475,7 +3997,7 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
          goto invalid_pname_enum;
       } else if (att->Type == GL_NONE) {
          _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
-                     _mesa_lookup_enum_by_nr(pname));
+                     _mesa_enum_to_string(pname));
       } else if (att->Type == GL_TEXTURE) {
          if (att->Texture && (att->Texture->Target == GL_TEXTURE_3D ||
              att->Texture->Target == GL_TEXTURE_2D_ARRAY)) {
@@ -3496,8 +4018,13 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
          goto invalid_pname_enum;
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
-                     _mesa_lookup_enum_by_nr(pname));
+         if (_mesa_is_winsys_fbo(buffer) &&
+             (attachment == GL_DEPTH || attachment == GL_STENCIL)) {
+            *params = GL_LINEAR;
+         } else {
+            _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
+                        _mesa_enum_to_string(pname));
+         }
       }
       else {
          if (ctx->Extensions.EXT_framebuffer_sRGB) {
@@ -3520,7 +4047,7 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
       }
       else if (att->Type == GL_NONE) {
          _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
-                     _mesa_lookup_enum_by_nr(pname));
+                     _mesa_enum_to_string(pname));
       }
       else {
          mesa_format format = att->Renderbuffer->Format;
@@ -3570,10 +4097,6 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
           && !_mesa_is_gles3(ctx)) {
          goto invalid_pname_enum;
       }
-      else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
-                     _mesa_lookup_enum_by_nr(pname));
-      }
       else if (att->Texture) {
          const struct gl_texture_image *texImage =
             _mesa_select_tex_image(att->Texture, att->Texture->Target,
@@ -3591,7 +4114,9 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
                                       att->Renderbuffer->Format);
       }
       else {
-         _mesa_problem(ctx, "%s: invalid FBO attachment structure", caller);
+         assert(att->Type == GL_NONE);
+         _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
+                     _mesa_enum_to_string(pname));
       }
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_LAYERED:
@@ -3601,7 +4126,7 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
          *params = att->Layered;
       } else if (att->Type == GL_NONE) {
          _mesa_error(ctx, err, "%s(invalid pname %s)", caller,
-                     _mesa_lookup_enum_by_nr(pname));
+                     _mesa_enum_to_string(pname));
       } else {
          goto invalid_pname_enum;
       }
@@ -3614,7 +4139,7 @@ _mesa_get_framebuffer_attachment_parameter(struct gl_context *ctx,
 
 invalid_pname_enum:
    _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid pname %s)", caller,
-               _mesa_lookup_enum_by_nr(pname));
+               _mesa_enum_to_string(pname));
    return;
 }
 
@@ -3630,12 +4155,12 @@ _mesa_GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment,
    if (!buffer) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glGetFramebufferAttachmentParameteriv(invalid target %s)",
-                  _mesa_lookup_enum_by_nr(target));
+                  _mesa_enum_to_string(target));
       return;
    }
 
-   _mesa_get_framebuffer_attachment_parameter(ctx, buffer, attachment, pname,
-                                              params,
+   get_framebuffer_attachment_parameter(ctx, buffer, attachment, pname,
+                                        params,
                                     "glGetFramebufferAttachmentParameteriv");
 }
 
@@ -3664,8 +4189,8 @@ _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer,
       buffer = ctx->WinSysDrawBuffer;
    }
 
-   _mesa_get_framebuffer_attachment_parameter(ctx, buffer, attachment, pname,
-                                              params,
+   get_framebuffer_attachment_parameter(ctx, buffer, attachment, pname,
+                                        params,
                               "glGetNamedFramebufferAttachmentParameteriv");
 }
 
@@ -3675,14 +4200,22 @@ _mesa_NamedFramebufferParameteri(GLuint framebuffer, GLenum pname,
                                  GLint param)
 {
    GET_CURRENT_CONTEXT(ctx);
+   struct gl_framebuffer *fb = NULL;
+
+   if (!ctx->Extensions.ARB_framebuffer_no_attachments) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glNamedFramebufferParameteri("
+                  "ARB_framebuffer_no_attachments not implemented)");
+      return;
+   }
 
-   (void) framebuffer;
-   (void) pname;
-   (void) param;
+   fb = _mesa_lookup_framebuffer_err(ctx, framebuffer,
+                                     "glNamedFramebufferParameteri");
 
-   _mesa_error(ctx, GL_INVALID_OPERATION,
-               "glNamedFramebufferParameteri not supported "
-               "(ARB_framebuffer_no_attachments not implemented)");
+   if (fb) {
+      framebuffer_parameteri(ctx, fb, pname, param,
+                             "glNamedFramebufferParameteriv");
+   }
 }
 
 
@@ -3691,14 +4224,26 @@ _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer, GLenum pname,
                                      GLint *param)
 {
    GET_CURRENT_CONTEXT(ctx);
+   struct gl_framebuffer *fb;
 
-   (void) framebuffer;
-   (void) pname;
-   (void) param;
+   if (!ctx->Extensions.ARB_framebuffer_no_attachments) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glNamedFramebufferParameteriv("
+                  "ARB_framebuffer_no_attachments not implemented)");
+      return;
+   }
 
-   _mesa_error(ctx, GL_INVALID_OPERATION,
-               "glGetNamedFramebufferParameteriv not supported "
-               "(ARB_framebuffer_no_attachments not implemented)");
+   if (framebuffer) {
+      fb = _mesa_lookup_framebuffer_err(ctx, framebuffer,
+                                        "glGetNamedFramebufferParameteriv");
+   } else {
+      fb = ctx->WinSysDrawBuffer;
+   }
+
+   if (fb) {
+      get_framebuffer_parameteriv(ctx, fb, pname, param,
+                                  "glGetNamedFramebufferParameteriv");
+   }
 }
 
 
@@ -3827,11 +4372,20 @@ invalidate_framebuffer_storage(struct gl_context *ctx,
 
 invalid_enum:
    _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid attachment %s)", name,
-               _mesa_lookup_enum_by_nr(attachments[i]));
+               _mesa_enum_to_string(attachments[i]));
    return;
 }
 
 
+void GLAPIENTRY
+_mesa_InvalidateSubFramebuffer_no_error(GLenum target, GLsizei numAttachments,
+                                        const GLenum *attachments, GLint x,
+                                        GLint y, GLsizei width, GLsizei height)
+{
+   /* no-op */
+}
+
+
 void GLAPIENTRY
 _mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
                                const GLenum *attachments, GLint x, GLint y,
@@ -3844,7 +4398,7 @@ _mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glInvalidateSubFramebuffer(invalid target %s)",
-                  _mesa_lookup_enum_by_nr(target));
+                  _mesa_enum_to_string(target));
       return;
    }
 
@@ -3883,6 +4437,14 @@ _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer,
 }
 
 
+void GLAPIENTRY
+_mesa_InvalidateFramebuffer_no_error(GLenum target, GLsizei numAttachments,
+                                     const GLenum *attachments)
+{
+   /* no-op */
+}
+
+
 void GLAPIENTRY
 _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
                             const GLenum *attachments)
@@ -3894,7 +4456,7 @@ _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glInvalidateFramebuffer(invalid target %s)",
-                  _mesa_lookup_enum_by_nr(target));
+                  _mesa_enum_to_string(target));
       return;
    }
 
@@ -3912,7 +4474,8 @@ _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
     */
    invalidate_framebuffer_storage(ctx, fb, numAttachments, attachments,
                                   0, 0,
-                                  MAX_VIEWPORT_WIDTH, MAX_VIEWPORT_HEIGHT,
+                                  ctx->Const.MaxViewportWidth,
+                                  ctx->Const.MaxViewportHeight,
                                   "glInvalidateFramebuffer");
 }
 
@@ -3952,7 +4515,8 @@ _mesa_InvalidateNamedFramebufferData(GLuint framebuffer,
     */
    invalidate_framebuffer_storage(ctx, fb, numAttachments, attachments,
                                   0, 0,
-                                  MAX_VIEWPORT_WIDTH, MAX_VIEWPORT_HEIGHT,
+                                  ctx->Const.MaxViewportWidth,
+                                  ctx->Const.MaxViewportHeight,
                                   "glInvalidateNamedFramebufferData");
 }
 
@@ -3970,7 +4534,7 @@ _mesa_DiscardFramebufferEXT(GLenum target, GLsizei numAttachments,
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM,
          "glDiscardFramebufferEXT(target %s)",
-         _mesa_lookup_enum_by_nr(target));
+         _mesa_enum_to_string(target));
       return;
    }
 
@@ -4007,5 +4571,5 @@ _mesa_DiscardFramebufferEXT(GLenum target, GLsizei numAttachments,
 invalid_enum:
    _mesa_error(ctx, GL_INVALID_ENUM,
                "glDiscardFramebufferEXT(attachment %s)",
-              _mesa_lookup_enum_by_nr(attachments[i]));
+              _mesa_enum_to_string(attachments[i]));
 }