mesa: allow buffers mapped with the persistent flag to be used by the GPU
[mesa.git] / src / mesa / main / fbobject.c
index 078e8320c719ad33641eb451a56e046079f0efe1..e459e0c63322e3f6bd5f6bf683c83ca2527f86dd 100644 (file)
@@ -1,6 +1,5 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.1
  *
  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  * Copyright (C) 1999-2009  VMware, Inc.  All Rights Reserved.
  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
  */
 
 
@@ -31,6 +31,7 @@
  *   Brian Paul
  */
 
+#include <stdbool.h>
 
 #include "buffers.h"
 #include "context.h"
@@ -41,7 +42,7 @@
 #include "glformats.h"
 #include "hash.h"
 #include "macros.h"
-#include "mfeatures.h"
+#include "multisample.h"
 #include "mtypes.h"
 #include "renderbuffer.h"
 #include "state.h"
 #include "texobj.h"
 
 
-/** Set this to 1 to debug/log glBlitFramebuffer() calls */
-#define DEBUG_BLIT 0
-
-
 /**
  * Notes:
  *
@@ -77,7 +74,7 @@ static struct gl_framebuffer IncompleteFramebuffer;
 
 
 static void
-delete_dummy_renderbuffer(struct gl_renderbuffer *rb)
+delete_dummy_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb)
 {
    /* no op */
 }
@@ -162,13 +159,12 @@ invalidate_framebuffer(struct gl_framebuffer *fb)
 static struct gl_framebuffer *
 get_framebuffer_target(struct gl_context *ctx, GLenum target)
 {
+   bool have_fb_blit = _mesa_is_gles3(ctx) || _mesa_is_desktop_gl(ctx);
    switch (target) {
    case GL_DRAW_FRAMEBUFFER:
-      return ctx->Extensions.EXT_framebuffer_blit && _mesa_is_desktop_gl(ctx)
-        ? ctx->DrawBuffer : NULL;
+      return have_fb_blit ? ctx->DrawBuffer : NULL;
    case GL_READ_FRAMEBUFFER:
-      return ctx->Extensions.EXT_framebuffer_blit && _mesa_is_desktop_gl(ctx)
-        ? ctx->ReadBuffer : NULL;
+      return have_fb_blit ? ctx->ReadBuffer : NULL;
    case GL_FRAMEBUFFER_EXT:
       return ctx->DrawBuffer;
    default:
@@ -185,9 +181,9 @@ get_framebuffer_target(struct gl_context *ctx, GLenum target)
  * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
  * the depth buffer attachment point.
  */
-struct gl_renderbuffer_attachment *
-_mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
-                     GLenum attachment)
+static struct gl_renderbuffer_attachment *
+get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
+               GLenum attachment)
 {
    GLuint i;
 
@@ -221,7 +217,7 @@ _mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
       }
       return &fb->Attachment[BUFFER_COLOR0 + i];
    case GL_DEPTH_STENCIL_ATTACHMENT:
-      if (!_mesa_is_desktop_gl(ctx))
+      if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
         return NULL;
       /* fall-through */
    case GL_DEPTH_ATTACHMENT_EXT:
@@ -244,6 +240,25 @@ _mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
 {
    assert(_mesa_is_winsys_fbo(fb));
 
+   if (_mesa_is_gles3(ctx)) {
+      assert(attachment == GL_BACK ||
+             attachment == GL_DEPTH ||
+             attachment == GL_STENCIL);
+      switch (attachment) {
+      case GL_BACK:
+         /* Since there is no stereo rendering in ES 3.0, only return the
+          * LEFT bits.
+          */
+         if (ctx->DrawBuffer->Visual.doubleBufferMode)
+            return &fb->Attachment[BUFFER_BACK_LEFT];
+         return &fb->Attachment[BUFFER_FRONT_LEFT];
+      case GL_DEPTH:
+      return &fb->Attachment[BUFFER_DEPTH];
+      case GL_STENCIL:
+         return &fb->Attachment[BUFFER_STENCIL];
+      }
+   }
+
    switch (attachment) {
    case GL_FRONT_LEFT:
       return &fb->Attachment[BUFFER_FRONT_LEFT];
@@ -298,16 +313,18 @@ _mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
  * Remove any texture or renderbuffer attached to the given attachment
  * point.  Update reference counts, etc.
  */
-void
-_mesa_remove_attachment(struct gl_context *ctx,
-                        struct gl_renderbuffer_attachment *att)
+static void
+remove_attachment(struct gl_context *ctx,
+                  struct gl_renderbuffer_attachment *att)
 {
+   struct gl_renderbuffer *rb = att->Renderbuffer;
+
+   /* tell driver that we're done rendering to this texture. */
+   if (rb && rb->NeedsFinishRenderTexture)
+      ctx->Driver.FinishRenderTexture(ctx, rb);
+
    if (att->Type == GL_TEXTURE) {
       ASSERT(att->Texture);
-      if (ctx->Driver.FinishRenderTexture) {
-         /* tell driver that we're done rendering to this texture. */
-         ctx->Driver.FinishRenderTexture(ctx, att);
-      }
       _mesa_reference_texobj(&att->Texture, NULL); /* unbind */
       ASSERT(!att->Texture);
    }
@@ -320,45 +337,121 @@ _mesa_remove_attachment(struct gl_context *ctx,
    att->Complete = GL_TRUE;
 }
 
+/**
+ * Verify a couple error conditions that will lead to an incomplete FBO and
+ * may cause problems for the driver's RenderTexture path.
+ */
+static bool
+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)
+      return false;
+
+   if ((texImage->TexObject->Target == GL_TEXTURE_1D_ARRAY
+        && att->Zoffset >= texImage->Height)
+       || (texImage->TexObject->Target != GL_TEXTURE_1D_ARRAY
+           && att->Zoffset >= texImage->Depth))
+      return false;
+
+   return true;
+}
+
+/**
+ * Create a renderbuffer which will be set up by the driver to wrap the
+ * texture image slice.
+ *
+ * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
+ * to share most of their framebuffer rendering code between winsys,
+ * renderbuffer, and texture attachments.
+ *
+ * The allocated renderbuffer uses a non-zero Name so that drivers can check
+ * it for determining vertical orientation, but we use ~0 to make it fairly
+ * unambiguous with actual user (non-texture) renderbuffers.
+ */
+void
+_mesa_update_texture_renderbuffer(struct gl_context *ctx,
+                                  struct gl_framebuffer *fb,
+                                  struct gl_renderbuffer_attachment *att)
+{
+   struct gl_texture_image *texImage;
+   struct gl_renderbuffer *rb;
+
+   texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
+
+   rb = att->Renderbuffer;
+   if (!rb) {
+      rb = ctx->Driver.NewRenderbuffer(ctx, ~0);
+      if (!rb) {
+         _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()");
+         return;
+      }
+      _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
+
+      /* This can't get called on a texture renderbuffer, so set it to NULL
+       * for clarity compared to user renderbuffers.
+       */
+      rb->AllocStorage = NULL;
+
+      rb->NeedsFinishRenderTexture = ctx->Driver.FinishRenderTexture != NULL;
+   }
+
+   if (!texImage)
+      return;
+
+   rb->_BaseFormat = texImage->_BaseFormat;
+   rb->Format = texImage->TexFormat;
+   rb->InternalFormat = texImage->InternalFormat;
+   rb->Width = texImage->Width2;
+   rb->Height = texImage->Height2;
+   rb->Depth = texImage->Depth2;
+   rb->NumSamples = texImage->NumSamples;
+   rb->TexImage = texImage;
+
+   if (driver_RenderTexture_is_safe(att))
+      ctx->Driver.RenderTexture(ctx, fb, att);
+}
 
 /**
  * Bind a texture object to an attachment point.
  * The previous binding, if any, will be removed first.
  */
-void
-_mesa_set_texture_attachment(struct gl_context *ctx,
-                             struct gl_framebuffer *fb,
-                             struct gl_renderbuffer_attachment *att,
-                             struct gl_texture_object *texObj,
-                             GLenum texTarget, GLuint level, GLuint zoffset)
+static void
+set_texture_attachment(struct gl_context *ctx,
+                       struct gl_framebuffer *fb,
+                       struct gl_renderbuffer_attachment *att,
+                       struct gl_texture_object *texObj,
+                       GLenum texTarget, GLuint level, GLuint zoffset,
+                       GLboolean layered)
 {
+   struct gl_renderbuffer *rb = att->Renderbuffer;
+
+   if (rb && rb->NeedsFinishRenderTexture)
+      ctx->Driver.FinishRenderTexture(ctx, rb);
+
    if (att->Texture == texObj) {
       /* re-attaching same texture */
       ASSERT(att->Type == GL_TEXTURE);
-      if (ctx->Driver.FinishRenderTexture)
-        ctx->Driver.FinishRenderTexture(ctx, att);
    }
    else {
       /* new attachment */
-      if (ctx->Driver.FinishRenderTexture && att->Texture)
-        ctx->Driver.FinishRenderTexture(ctx, att);
-      _mesa_remove_attachment(ctx, att);
+      remove_attachment(ctx, att);
       att->Type = GL_TEXTURE;
       assert(!att->Texture);
       _mesa_reference_texobj(&att->Texture, texObj);
    }
+   invalidate_framebuffer(fb);
 
    /* always update these fields */
    att->TextureLevel = level;
    att->CubeMapFace = _mesa_tex_target_to_face(texTarget);
    att->Zoffset = zoffset;
+   att->Layered = layered;
    att->Complete = GL_FALSE;
 
-   if (_mesa_get_attachment_teximage(att)) {
-      ctx->Driver.RenderTexture(ctx, fb, att);
-   }
-
-   invalidate_framebuffer(fb);
+   _mesa_update_texture_renderbuffer(ctx, fb, att);
 }
 
 
@@ -366,13 +459,13 @@ _mesa_set_texture_attachment(struct gl_context *ctx,
  * Bind a renderbuffer to an attachment point.
  * The previous binding, if any, will be removed first.
  */
-void
-_mesa_set_renderbuffer_attachment(struct gl_context *ctx,
-                                  struct gl_renderbuffer_attachment *att,
-                                  struct gl_renderbuffer *rb)
+static void
+set_renderbuffer_attachment(struct gl_context *ctx,
+                            struct gl_renderbuffer_attachment *att,
+                            struct gl_renderbuffer *rb)
 {
    /* XXX check if re-doing same attachment, exit early */
-   _mesa_remove_attachment(ctx, att);
+   remove_attachment(ctx, att);
    att->Type = GL_RENDERBUFFER_EXT;
    att->Texture = NULL; /* just to be safe */
    att->Complete = GL_FALSE;
@@ -393,20 +486,20 @@ _mesa_framebuffer_renderbuffer(struct gl_context *ctx,
 
    _glthread_LOCK_MUTEX(fb->Mutex);
 
-   att = _mesa_get_attachment(ctx, fb, attachment);
+   att = get_attachment(ctx, fb, attachment);
    ASSERT(att);
    if (rb) {
-      _mesa_set_renderbuffer_attachment(ctx, att, rb);
+      set_renderbuffer_attachment(ctx, att, rb);
       if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
          /* do stencil attachment here (depth already done above) */
-         att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
+         att = get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
          assert(att);
-         _mesa_set_renderbuffer_attachment(ctx, att, rb);
+         set_renderbuffer_attachment(ctx, att, rb);
       }
       rb->AttachedAnytime = GL_TRUE;
    }
    else {
-      _mesa_remove_attachment(ctx, att);
+      remove_attachment(ctx, att);
    }
 
    invalidate_framebuffer(fb);
@@ -441,7 +534,7 @@ _mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
          default:
             switch (rb->Format) {
             /* XXX This list is likely incomplete. */
-            case MESA_FORMAT_RGB9_E5_FLOAT:
+            case MESA_FORMAT_R9G9B9E5_FLOAT:
                fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
                return;
             default:;
@@ -453,6 +546,32 @@ _mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
 }
 
 
+/**
+ * Return true if the framebuffer has a combined depth/stencil
+ * renderbuffer attached.
+ */
+GLboolean
+_mesa_has_depthstencil_combined(const struct gl_framebuffer *fb)
+{
+   const struct gl_renderbuffer_attachment *depth =
+         &fb->Attachment[BUFFER_DEPTH];
+   const struct gl_renderbuffer_attachment *stencil =
+         &fb->Attachment[BUFFER_STENCIL];
+
+   if (depth->Type == stencil->Type) {
+      if (depth->Type == GL_RENDERBUFFER_EXT &&
+          depth->Renderbuffer == stencil->Renderbuffer)
+         return GL_TRUE;
+
+      if (depth->Type == GL_TEXTURE &&
+          depth->Texture == stencil->Texture)
+         return GL_TRUE;
+   }
+
+   return GL_FALSE;
+}
+
+
 /**
  * For debug only.
  */
@@ -469,8 +588,15 @@ att_incomplete(const char *msg)
  * For debug only.
  */
 static void
-fbo_incomplete(const char *msg, int index)
+fbo_incomplete(struct gl_context *ctx, const char *msg, int index)
 {
+   static GLuint msg_id;
+
+   _mesa_gl_debug(ctx, &msg_id,
+                  MESA_DEBUG_TYPE_OTHER,
+                  MESA_DEBUG_SEVERITY_MEDIUM,
+                  "FBO incomplete: %s [%d]\n", msg, index);
+
    if (MESA_DEBUG_FLAGS & DEBUG_INCOMPLETE_FBO) {
       _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
    }
@@ -491,7 +617,8 @@ _mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat)
    case GL_LUMINANCE_ALPHA:
    case GL_INTENSITY:
    case GL_ALPHA:
-      return ctx->Extensions.ARB_framebuffer_object;
+      return ctx->API == API_OPENGL_COMPAT &&
+             ctx->Extensions.ARB_framebuffer_object;
    case GL_RED:
    case GL_RG:
       return ctx->Extensions.ARB_texture_rg;
@@ -501,6 +628,50 @@ _mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat)
 }
 
 
+/**
+ * Is the given base format a legal format for a color renderbuffer?
+ */
+static GLboolean
+is_format_color_renderable(const struct gl_context *ctx, mesa_format format, GLenum internalFormat)
+{
+   const GLenum baseFormat =
+      _mesa_get_format_base_format(format);
+   GLboolean valid;
+
+   valid = _mesa_is_legal_color_format(ctx, baseFormat);
+   if (!valid || _mesa_is_desktop_gl(ctx)) {
+      return valid;
+   }
+
+   /* Reject additional cases for GLES */
+   switch (internalFormat) {
+   case GL_RGBA8_SNORM:
+   case GL_RGB32F:
+   case GL_RGB32I:
+   case GL_RGB32UI:
+   case GL_RGB16F:
+   case GL_RGB16I:
+   case GL_RGB16UI:
+   case GL_RGB8_SNORM:
+   case GL_RGB8I:
+   case GL_RGB8UI:
+   case GL_SRGB8:
+   case GL_RGB9_E5:
+   case GL_RG8_SNORM:
+   case GL_R8_SNORM:
+      return GL_FALSE;
+   default:
+      break;
+   }
+
+   if (format == MESA_FORMAT_B10G10R10A2_UNORM && internalFormat != GL_RGB10_A2) {
+      return GL_FALSE;
+   }
+
+   return GL_TRUE;
+}
+
+
 /**
  * Is the given base format a legal format for a depth/stencil renderbuffer?
  */
@@ -552,15 +723,39 @@ test_attachment_completeness(const struct gl_context *ctx, GLenum format,
       }
       if (texImage->Width < 1 || texImage->Height < 1) {
          att_incomplete("teximage width/height=0");
-         printf("texobj = %u\n", texObj->Name);
-         printf("level = %d\n", att->TextureLevel);
          att->Complete = GL_FALSE;
          return;
       }
-      if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {
-         att_incomplete("bad z offset");
-         att->Complete = GL_FALSE;
-         return;
+
+      switch (texObj->Target) {
+      case GL_TEXTURE_3D:
+         if (att->Zoffset >= texImage->Depth) {
+            att_incomplete("bad z offset");
+            att->Complete = GL_FALSE;
+            return;
+         }
+         break;
+      case GL_TEXTURE_1D_ARRAY:
+         if (att->Zoffset >= texImage->Height) {
+            att_incomplete("bad 1D-array layer");
+            att->Complete = GL_FALSE;
+            return;
+         }
+         break;
+      case GL_TEXTURE_2D_ARRAY:
+         if (att->Zoffset >= texImage->Depth) {
+            att_incomplete("bad 2D-array layer");
+            att->Complete = GL_FALSE;
+            return;
+         }
+         break;
+      case GL_TEXTURE_CUBE_MAP_ARRAY:
+         if (att->Zoffset >= texImage->Depth) {
+            att_incomplete("bad cube-array layer");
+            att->Complete = GL_FALSE;
+            return;
+         }
+         break;
       }
 
       baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
@@ -581,9 +776,8 @@ test_attachment_completeness(const struct gl_context *ctx, GLenum format,
          if (baseFormat == GL_DEPTH_COMPONENT) {
             /* OK */
          }
-         else if (ctx->Extensions.EXT_packed_depth_stencil &&
-                  ctx->Extensions.ARB_depth_texture &&
-                  baseFormat == GL_DEPTH_STENCIL_EXT) {
+         else if (ctx->Extensions.ARB_depth_texture &&
+                  baseFormat == GL_DEPTH_STENCIL) {
             /* OK */
          }
          else {
@@ -594,9 +788,8 @@ test_attachment_completeness(const struct gl_context *ctx, GLenum format,
       }
       else {
          ASSERT(format == GL_STENCIL);
-         if (ctx->Extensions.EXT_packed_depth_stencil &&
-             ctx->Extensions.ARB_depth_texture &&
-             baseFormat == GL_DEPTH_STENCIL_EXT) {
+         if (ctx->Extensions.ARB_depth_texture &&
+             baseFormat == GL_DEPTH_STENCIL) {
             /* OK */
          }
          else {
@@ -630,8 +823,7 @@ test_attachment_completeness(const struct gl_context *ctx, GLenum format,
          if (baseFormat == GL_DEPTH_COMPONENT) {
             /* OK */
          }
-         else if (ctx->Extensions.EXT_packed_depth_stencil &&
-                  baseFormat == GL_DEPTH_STENCIL_EXT) {
+         else if (baseFormat == GL_DEPTH_STENCIL) {
             /* OK */
          }
          else {
@@ -642,11 +834,8 @@ test_attachment_completeness(const struct gl_context *ctx, GLenum format,
       }
       else {
          assert(format == GL_STENCIL);
-         if (baseFormat == GL_STENCIL_INDEX) {
-            /* OK */
-         }
-         else if (ctx->Extensions.EXT_packed_depth_stencil &&
-                  baseFormat == GL_DEPTH_STENCIL_EXT) {
+         if (baseFormat == GL_STENCIL_INDEX ||
+             baseFormat == GL_DEPTH_STENCIL) {
             /* OK */
          }
          else {
@@ -680,8 +869,14 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    GLenum intFormat = GL_NONE; /* color buffers' internal format */
    GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
    GLint numSamples = -1;
+   GLint fixedSampleLocations = -1;
    GLint i;
    GLuint j;
+   /* Covers max_layer_count, is_layered, and layer_tex_target */
+   bool layer_info_valid = false;
+   GLuint max_layer_count = 0, att_layer_count;
+   bool is_layered = false;
+   GLenum layer_tex_target = 0;
 
    assert(_mesa_is_user_fbo(fb));
 
@@ -691,6 +886,8 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    numImages = 0;
    fb->Width = 0;
    fb->Height = 0;
+   fb->_AllColorBuffersFixedPoint = GL_TRUE;
+   fb->_HasSNormOrFloatColorBuffer = GL_FALSE;
 
    /* Start at -2 to more easily loop over all attachment points.
     *  -2: depth buffer
@@ -700,7 +897,8 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {
       struct gl_renderbuffer_attachment *att;
       GLenum f;
-      gl_format attFormat;
+      mesa_format attFormat;
+      GLenum att_tex_target = GL_NONE;
 
       /*
        * XXX for ARB_fbo, only check color buffers that are named by
@@ -714,7 +912,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
          test_attachment_completeness(ctx, GL_DEPTH, att);
          if (!att->Complete) {
             fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
-            fbo_incomplete("depth attachment incomplete", -1);
+            fbo_incomplete(ctx, "depth attachment incomplete", -1);
             return;
          }
       }
@@ -723,7 +921,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
          test_attachment_completeness(ctx, GL_STENCIL, att);
          if (!att->Complete) {
             fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
-            fbo_incomplete("stencil attachment incomplete", -1);
+            fbo_incomplete(ctx, "stencil attachment incomplete", -1);
             return;
          }
       }
@@ -732,7 +930,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
          test_attachment_completeness(ctx, GL_COLOR, att);
          if (!att->Complete) {
             fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
-            fbo_incomplete("color attachment incomplete", i);
+            fbo_incomplete(ctx, "color attachment incomplete", i);
             return;
          }
       }
@@ -740,8 +938,8 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
       /* get width, height, format of the renderbuffer/texture
        */
       if (att->Type == GL_TEXTURE) {
-         const struct gl_texture_image *texImg =
-            _mesa_get_attachment_teximage(att);
+         const struct gl_texture_image *texImg = att->Renderbuffer->TexImage;
+         att_tex_target = att->Texture->Target;
          minWidth = MIN2(minWidth, texImg->Width);
          maxWidth = MAX2(maxWidth, texImg->Width);
          minHeight = MIN2(minHeight, texImg->Height);
@@ -749,10 +947,27 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
          f = texImg->_BaseFormat;
          attFormat = texImg->TexFormat;
          numImages++;
-         if (!_mesa_is_legal_color_format(ctx, f) &&
+
+         if (!is_format_color_renderable(ctx, attFormat, texImg->InternalFormat) &&
              !is_legal_depth_format(ctx, f)) {
             fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
-            fbo_incomplete("texture attachment incomplete", -1);
+            fbo_incomplete(ctx, "texture attachment incomplete", -1);
+            return;
+         }
+
+         if (numSamples < 0)
+            numSamples = texImg->NumSamples;
+         else if (numSamples != texImg->NumSamples) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete(ctx, "inconsistent sample count", -1);
+            return;
+         }
+
+         if (fixedSampleLocations < 0)
+            fixedSampleLocations = texImg->FixedSampleLocations;
+         else if (fixedSampleLocations != texImg->FixedSampleLocations) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete(ctx, "inconsistent fixed sample locations", -1);
             return;
          }
       }
@@ -764,24 +979,48 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
          f = att->Renderbuffer->InternalFormat;
          attFormat = att->Renderbuffer->Format;
          numImages++;
+
+         if (numSamples < 0)
+            numSamples = att->Renderbuffer->NumSamples;
+         else if (numSamples != att->Renderbuffer->NumSamples) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete(ctx, "inconsistent sample count", -1);
+            return;
+         }
+
+         /* RENDERBUFFER has fixedSampleLocations implicitly true */
+         if (fixedSampleLocations < 0)
+            fixedSampleLocations = GL_TRUE;
+         else if (fixedSampleLocations != GL_TRUE) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete(ctx, "inconsistent fixed sample locations", -1);
+            return;
+         }
       }
       else {
          assert(att->Type == GL_NONE);
          continue;
       }
 
-      if (att->Renderbuffer && numSamples < 0) {
-         /* first buffer */
-         numSamples = att->Renderbuffer->NumSamples;
-      }
-
       /* check if integer color */
       fb->_IntegerColor = _mesa_is_format_integer_color(attFormat);
 
-      /* Error-check width, height, format, samples
-       */
+      /* Update _AllColorBuffersFixedPoint and _HasSNormOrFloatColorBuffer. */
+      if (i >= 0) {
+         GLenum type = _mesa_get_format_datatype(attFormat);
+
+         fb->_AllColorBuffersFixedPoint =
+            fb->_AllColorBuffersFixedPoint &&
+            (type == GL_UNSIGNED_NORMALIZED || type == GL_SIGNED_NORMALIZED);
+
+         fb->_HasSNormOrFloatColorBuffer =
+            fb->_HasSNormOrFloatColorBuffer ||
+            type == GL_SIGNED_NORMALIZED || type == GL_FLOAT;
+      }
+
+      /* Error-check width, height, format */
       if (numImages == 1) {
-         /* save format, num samples */
+         /* save format */
          if (i >= 0) {
             intFormat = f;
          }
@@ -791,22 +1030,16 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
             /* check that width, height, format are same */
             if (minWidth != maxWidth || minHeight != maxHeight) {
                fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
-               fbo_incomplete("width or height mismatch", -1);
+               fbo_incomplete(ctx, "width or height mismatch", -1);
                return;
             }
             /* check that all color buffers are the same format */
             if (intFormat != GL_NONE && f != intFormat) {
                fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
-               fbo_incomplete("format mismatch", -1);
+               fbo_incomplete(ctx, "format mismatch", -1);
                return;
             }
          }
-         if (att->Renderbuffer &&
-             att->Renderbuffer->NumSamples != numSamples) {
-            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
-            fbo_incomplete("inconsistant number of samples", i);
-            return;
-         }
       }
 
       /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
@@ -814,21 +1047,49 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
       if (att->Type == GL_RENDERBUFFER &&
           att->Renderbuffer->Format == MESA_FORMAT_NONE) {
          fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
-         fbo_incomplete("unsupported renderbuffer format", i);
+         fbo_incomplete(ctx, "unsupported renderbuffer format", i);
+         return;
+      }
+
+      /* Check that layered rendering is consistent. */
+      if (att->Layered) {
+         if (att_tex_target == GL_TEXTURE_CUBE_MAP)
+            att_layer_count = 6;
+         else
+            att_layer_count = att->Renderbuffer->Depth;
+      } else {
+         att_layer_count = 0;
+      }
+      if (!layer_info_valid) {
+         is_layered = att->Layered;
+         max_layer_count = att_layer_count;
+         layer_tex_target = att_tex_target;
+         layer_info_valid = true;
+      } else if (max_layer_count > 0 && layer_tex_target != att_tex_target) {
+         fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS;
+         fbo_incomplete(ctx, "layered framebuffer has mismatched targets", i);
          return;
+      } else if (is_layered != att->Layered) {
+         fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS;
+         fbo_incomplete(ctx, "framebuffer attachment layer mode is inconsistent", i);
+         return;
+      } else if (att_layer_count > max_layer_count) {
+         max_layer_count = att_layer_count;
       }
    }
 
+   fb->MaxNumLayers = max_layer_count;
+
    if (_mesa_is_desktop_gl(ctx) && !ctx->Extensions.ARB_ES2_compatibility) {
       /* Check that all DrawBuffers are present */
       for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
         if (fb->ColorDrawBuffer[j] != GL_NONE) {
            const struct gl_renderbuffer_attachment *att
-              = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
+              = get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
            assert(att);
            if (att->Type == GL_NONE) {
               fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
-              fbo_incomplete("missing drawbuffer", j);
+              fbo_incomplete(ctx, "missing drawbuffer", j);
               return;
            }
         }
@@ -837,11 +1098,11 @@ _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
-           = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
+           = get_attachment(ctx, fb, fb->ColorReadBuffer);
         assert(att);
         if (att->Type == GL_NONE) {
            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
-            fbo_incomplete("missing readbuffer", -1);
+            fbo_incomplete(ctx, "missing readbuffer", -1);
            return;
         }
       }
@@ -849,7 +1110,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
 
    if (numImages == 0) {
       fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
-      fbo_incomplete("no attachments", -1);
+      fbo_incomplete(ctx, "no attachments", -1);
       return;
    }
 
@@ -863,7 +1124,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    if (ctx->Driver.ValidateFramebuffer) {
       ctx->Driver.ValidateFramebuffer(ctx, fb);
       if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
-         fbo_incomplete("driver marked FBO as incomplete", -1);
+         fbo_incomplete(ctx, "driver marked FBO as incomplete", -1);
       }
    }
 
@@ -883,7 +1144,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
 
 
 GLboolean GLAPIENTRY
-_mesa_IsRenderbufferEXT(GLuint renderbuffer)
+_mesa_IsRenderbuffer(GLuint renderbuffer)
 {
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
@@ -896,14 +1157,12 @@ _mesa_IsRenderbufferEXT(GLuint renderbuffer)
 }
 
 
-void GLAPIENTRY
-_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
+static void
+bind_renderbuffer(GLenum target, GLuint renderbuffer, bool allow_user_names)
 {
    struct gl_renderbuffer *newRb;
    GET_CURRENT_CONTEXT(ctx);
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
    if (target != GL_RENDERBUFFER_EXT) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)");
       return;
@@ -919,7 +1178,7 @@ _mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
          /* ID was reserved, but no real renderbuffer object made yet */
          newRb = NULL;
       }
-      else if (!newRb && ctx->Extensions.ARB_framebuffer_object) {
+      else if (!newRb && !allow_user_names) {
          /* All RB IDs must be Gen'd */
          _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");
          return;
@@ -946,35 +1205,77 @@ _mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
    _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb);
 }
 
+void GLAPIENTRY
+_mesa_BindRenderbuffer(GLenum target, GLuint renderbuffer)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
+    * entry point, but they allow the use of user-generated names.
+    */
+   bind_renderbuffer(target, renderbuffer, _mesa_is_gles(ctx));
+}
+
+void GLAPIENTRY
+_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
+{
+   /* This function should not be in the dispatch table for core profile /
+    * OpenGL 3.1, so execution should never get here in those cases -- no
+    * need for an explicit test.
+    */
+   bind_renderbuffer(target, renderbuffer, true);
+}
+
 
 /**
- * If the given renderbuffer is anywhere attached to the framebuffer, detach
- * the renderbuffer.
- * This is used when a renderbuffer object is deleted.
- * The spec calls for unbinding.
+ * Remove the specified renderbuffer or texture from any attachment point in
+ * the framebuffer.
+ *
+ * \returns
+ * \c true if the renderbuffer was detached from an attachment point.  \c
+ * false otherwise.
  */
-static void
-detach_renderbuffer(struct gl_context *ctx,
-                    struct gl_framebuffer *fb,
-                    struct gl_renderbuffer *rb)
+bool
+_mesa_detach_renderbuffer(struct gl_context *ctx,
+                          struct gl_framebuffer *fb,
+                          const void *att)
 {
-   GLuint i;
+   unsigned i;
+   bool progress = false;
+
    for (i = 0; i < BUFFER_COUNT; i++) {
-      if (fb->Attachment[i].Renderbuffer == rb) {
-         _mesa_remove_attachment(ctx, &fb->Attachment[i]);
+      if (fb->Attachment[i].Texture == att
+          || fb->Attachment[i].Renderbuffer == att) {
+         remove_attachment(ctx, &fb->Attachment[i]);
+         progress = true;
       }
    }
-   invalidate_framebuffer(fb);
+
+   /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
+    * Completeness," of the OpenGL 3.1 spec says:
+    *
+    *     "Performing any of the following actions may change whether the
+    *     framebuffer is considered complete or incomplete:
+    *
+    *     ...
+    *
+    *        - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
+    *          containing an image that is attached to a framebuffer object
+    *          that is bound to the framebuffer."
+    */
+   if (progress)
+      invalidate_framebuffer(fb);
+
+   return progress;
 }
 
 
 void GLAPIENTRY
-_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
+_mesa_DeleteRenderbuffers(GLsizei n, const GLuint *renderbuffers)
 {
    GLint i;
    GET_CURRENT_CONTEXT(ctx);
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
    FLUSH_VERTICES(ctx, _NEW_BUFFERS);
 
    for (i = 0; i < n; i++) {
@@ -986,15 +1287,32 @@ _mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
             if (rb == ctx->CurrentRenderbuffer) {
                /* bind default */
                ASSERT(rb->RefCount >= 2);
-               _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+               _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT, 0);
             }
 
+            /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
+             * subsection "Attaching Renderbuffer Images to a Framebuffer," of
+             * the OpenGL 3.1 spec says:
+             *
+             *     "If a renderbuffer object is deleted while its image is
+             *     attached to one or more attachment points in the currently
+             *     bound framebuffer, then it is as if FramebufferRenderbuffer
+             *     had been called, with a renderbuffer of 0, for each
+             *     attachment point to which this image was attached in the
+             *     currently bound framebuffer. In other words, this
+             *     renderbuffer image is first detached from all attachment
+             *     points in the currently bound framebuffer. Note that the
+             *     renderbuffer image is specifically not detached from any
+             *     non-bound framebuffers. Detaching the image from any
+             *     non-bound framebuffers is the responsibility of the
+             *     application.
+             */
             if (_mesa_is_user_fbo(ctx->DrawBuffer)) {
-               detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
+               _mesa_detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
             }
             if (_mesa_is_user_fbo(ctx->ReadBuffer)
                 && ctx->ReadBuffer != ctx->DrawBuffer) {
-               detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
+               _mesa_detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
             }
 
            /* Remove from hash table immediately, to free the ID.
@@ -1014,14 +1332,12 @@ _mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
 
 
 void GLAPIENTRY
-_mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers)
+_mesa_GenRenderbuffers(GLsizei n, GLuint *renderbuffers)
 {
    GET_CURRENT_CONTEXT(ctx);
    GLuint first;
    GLint i;
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
    if (n < 0) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)");
       return;
@@ -1071,14 +1387,14 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_ALPHA8:
    case GL_ALPHA12:
    case GL_ALPHA16:
-      return ctx->API == API_OPENGL && ctx->Extensions.ARB_framebuffer_object
+      return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
          ? GL_ALPHA : 0;
    case GL_LUMINANCE:
    case GL_LUMINANCE4:
    case GL_LUMINANCE8:
    case GL_LUMINANCE12:
    case GL_LUMINANCE16:
-      return ctx->API == API_OPENGL && ctx->Extensions.ARB_framebuffer_object
+      return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
          ? GL_LUMINANCE : 0;
    case GL_LUMINANCE_ALPHA:
    case GL_LUMINANCE4_ALPHA4:
@@ -1087,14 +1403,14 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_LUMINANCE12_ALPHA4:
    case GL_LUMINANCE12_ALPHA12:
    case GL_LUMINANCE16_ALPHA16:
-      return ctx->API == API_OPENGL && ctx->Extensions.ARB_framebuffer_object
+      return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
          ? GL_LUMINANCE_ALPHA : 0;
    case GL_INTENSITY:
    case GL_INTENSITY4:
    case GL_INTENSITY8:
    case GL_INTENSITY12:
    case GL_INTENSITY16:
-      return ctx->API == API_OPENGL && ctx->Extensions.ARB_framebuffer_object
+      return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
          ? GL_INTENSITY : 0;
    case GL_RGB8:
       return GL_RGB;
@@ -1107,7 +1423,7 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_RGB16:
       return _mesa_is_desktop_gl(ctx) ? GL_RGB : 0;
    case GL_SRGB8_EXT:
-      return _mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx) ? GL_RGB : 0;
+      return _mesa_is_desktop_gl(ctx) ? GL_RGB : 0;
    case GL_RGBA4:
    case GL_RGB5_A1:
    case GL_RGBA8:
@@ -1136,20 +1452,17 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_DEPTH_COMPONENT16:
    case GL_DEPTH_COMPONENT24:
       return GL_DEPTH_COMPONENT;
-   case GL_DEPTH_STENCIL_EXT:
-      return _mesa_is_desktop_gl(ctx)
-         && ctx->Extensions.EXT_packed_depth_stencil
-         ? GL_DEPTH_STENCIL_EXT : 0;
-   case GL_DEPTH24_STENCIL8_EXT:
-      return ctx->Extensions.EXT_packed_depth_stencil
-         ? GL_DEPTH_STENCIL_EXT : 0;
+   case GL_DEPTH_STENCIL:
+      return _mesa_is_desktop_gl(ctx) ? GL_DEPTH_STENCIL : 0;
+   case GL_DEPTH24_STENCIL8:
+      return GL_DEPTH_STENCIL;
    case GL_DEPTH_COMPONENT32F:
       return ctx->Version >= 30
-         || (ctx->API == API_OPENGL && ctx->Extensions.ARB_depth_buffer_float)
+         || (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_buffer_float)
          ? GL_DEPTH_COMPONENT : 0;
    case GL_DEPTH32F_STENCIL8:
       return ctx->Version >= 30
-         || (ctx->API == API_OPENGL && ctx->Extensions.ARB_depth_buffer_float)
+         || (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_buffer_float)
          ? GL_DEPTH_STENCIL : 0;
    case GL_RED:
    case GL_R16:
@@ -1166,111 +1479,100 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
       return ctx->API != API_OPENGLES && ctx->Extensions.ARB_texture_rg
          ? GL_RG : 0;
    /* signed normalized texture formats */
-   case GL_R8_SNORM:
-      return ctx->Version >= 30
-         || (ctx->API == API_OPENGL && ctx->Extensions.EXT_texture_snorm)
-         ? GL_RED : 0;
    case GL_RED_SNORM:
+   case GL_R8_SNORM:
    case GL_R16_SNORM:
       return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
          ? GL_RED : 0;
-   case GL_RG8_SNORM:
-      return ctx->Version >= 30
-         || (ctx->API == API_OPENGL && ctx->Extensions.EXT_texture_snorm)
-         ? GL_RG : 0;
    case GL_RG_SNORM:
+   case GL_RG8_SNORM:
    case GL_RG16_SNORM:
       return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
          ? GL_RG : 0;
-   case GL_RGB8_SNORM:
-      return ctx->Version >= 30
-         || (ctx->API == API_OPENGL && ctx->Extensions.EXT_texture_snorm)
-         ? GL_RGB : 0;
    case GL_RGB_SNORM:
+   case GL_RGB8_SNORM:
    case GL_RGB16_SNORM:
       return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
          ? GL_RGB : 0;
-   case GL_RGBA8_SNORM:
-      return ctx->Version >= 30
-         || (ctx->API == API_OPENGL && ctx->Extensions.EXT_texture_snorm)
-         ? GL_RGBA : 0;
    case GL_RGBA_SNORM:
+   case GL_RGBA8_SNORM:
    case GL_RGBA16_SNORM:
       return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
          ? GL_RGBA : 0;
    case GL_ALPHA_SNORM:
    case GL_ALPHA8_SNORM:
    case GL_ALPHA16_SNORM:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.EXT_texture_snorm &&
              ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
    case GL_LUMINANCE_SNORM:
    case GL_LUMINANCE8_SNORM:
    case GL_LUMINANCE16_SNORM:
-      return ctx->API == API_OPENGL &&
-             ctx->Extensions.EXT_texture_snorm &&
-             ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
+         ? GL_LUMINANCE : 0;
    case GL_LUMINANCE_ALPHA_SNORM:
    case GL_LUMINANCE8_ALPHA8_SNORM:
    case GL_LUMINANCE16_ALPHA16_SNORM:
-      return ctx->API == API_OPENGL &&
-             ctx->Extensions.EXT_texture_snorm &&
-             ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
+         ? GL_LUMINANCE_ALPHA : 0;
    case GL_INTENSITY_SNORM:
    case GL_INTENSITY8_SNORM:
    case GL_INTENSITY16_SNORM:
-      return ctx->API == API_OPENGL &&
-             ctx->Extensions.EXT_texture_snorm &&
-             ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
+         ? GL_INTENSITY : 0;
+
    case GL_R16F:
    case GL_R32F:
-      return ctx->Version >= 30
-         || (ctx->API == API_OPENGL &&
-             ctx->Extensions.ARB_texture_rg &&
-             ctx->Extensions.ARB_texture_float) ? GL_RED : 0;
+      return ((_mesa_is_desktop_gl(ctx) &&
+               ctx->Extensions.ARB_texture_rg &&
+               ctx->Extensions.ARB_texture_float) ||
+              _mesa_is_gles3(ctx) /* EXT_color_buffer_float */ )
+         ? GL_RED : 0;
    case GL_RG16F:
    case GL_RG32F:
-      return ctx->Version >= 30
-         || (ctx->API == API_OPENGL &&
-             ctx->Extensions.ARB_texture_rg &&
-             ctx->Extensions.ARB_texture_float) ? GL_RG : 0;
+      return ((_mesa_is_desktop_gl(ctx) &&
+               ctx->Extensions.ARB_texture_rg &&
+               ctx->Extensions.ARB_texture_float) ||
+              _mesa_is_gles3(ctx) /* EXT_color_buffer_float */ )
+         ? GL_RG : 0;
    case GL_RGB16F:
    case GL_RGB32F:
       return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_float)
-         || _mesa_is_gles3(ctx)
          ? GL_RGB : 0;
    case GL_RGBA16F:
    case GL_RGBA32F:
-      return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_float)
-         || _mesa_is_gles3(ctx)
+      return ((_mesa_is_desktop_gl(ctx) &&
+               ctx->Extensions.ARB_texture_float) ||
+              _mesa_is_gles3(ctx) /* EXT_color_buffer_float */ )
          ? GL_RGBA : 0;
    case GL_ALPHA16F_ARB:
    case GL_ALPHA32F_ARB:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.ARB_texture_float &&
              ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
    case GL_LUMINANCE16F_ARB:
    case GL_LUMINANCE32F_ARB:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.ARB_texture_float &&
              ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
    case GL_LUMINANCE_ALPHA16F_ARB:
    case GL_LUMINANCE_ALPHA32F_ARB:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.ARB_texture_float &&
              ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
    case GL_INTENSITY16F_ARB:
    case GL_INTENSITY32F_ARB:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.ARB_texture_float &&
              ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
    case GL_RGB9_E5:
       return (_mesa_is_desktop_gl(ctx)
               && ctx->Extensions.EXT_texture_shared_exponent)
-         || _mesa_is_gles3(ctx) ? GL_RGB : 0;
+         ? GL_RGB : 0;
    case GL_R11F_G11F_B10F:
-      return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_packed_float)
-         || _mesa_is_gles3(ctx) ? GL_RGB : 0;
+      return ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_packed_float) ||
+              _mesa_is_gles3(ctx) /* EXT_color_buffer_float */ )
+         ? GL_RGB : 0;
 
    case GL_RGBA8UI_EXT:
    case GL_RGBA16UI_EXT:
@@ -1288,10 +1590,8 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_RGB8I_EXT:
    case GL_RGB16I_EXT:
    case GL_RGB32I_EXT:
-      return ctx->Version >= 30
-         || (_mesa_is_desktop_gl(ctx) &&
-             ctx->Extensions.EXT_texture_integer) ? GL_RGB : 0;
-
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_integer
+         ? GL_RGB : 0;
    case GL_R8UI:
    case GL_R8I:
    case GL_R16UI:
@@ -1320,7 +1620,7 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_INTENSITY16UI_EXT:
    case GL_INTENSITY32I_EXT:
    case GL_INTENSITY32UI_EXT:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.EXT_texture_integer &&
              ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
 
@@ -1330,7 +1630,7 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_LUMINANCE16UI_EXT:
    case GL_LUMINANCE32I_EXT:
    case GL_LUMINANCE32UI_EXT:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.EXT_texture_integer &&
              ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
 
@@ -1340,7 +1640,7 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_LUMINANCE_ALPHA16UI_EXT:
    case GL_LUMINANCE_ALPHA32I_EXT:
    case GL_LUMINANCE_ALPHA32UI_EXT:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.EXT_texture_integer &&
              ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
 
@@ -1350,7 +1650,7 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_ALPHA16UI_EXT:
    case GL_ALPHA32I_EXT:
    case GL_ALPHA32UI_EXT:
-      return ctx->API == API_OPENGL &&
+      return ctx->API == API_OPENGL_COMPAT &&
              ctx->Extensions.EXT_texture_integer &&
              ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
 
@@ -1398,21 +1698,35 @@ invalidate_rb(GLuint key, void *data, void *userData)
 
 
 /**
- * Helper function used by _mesa_RenderbufferStorageEXT() and 
+ * Helper function used by _mesa_RenderbufferStorage() and 
  * _mesa_RenderbufferStorageMultisample().
- * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
+ * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
  */
 static void
 renderbuffer_storage(GLenum target, GLenum internalFormat,
                      GLsizei width, GLsizei height, GLsizei samples)
 {
    const char *func = samples == NO_SAMPLES ?
-      "glRenderbufferStorage" : "RenderbufferStorageMultisample";
+      "glRenderbufferStorage" : "glRenderbufferStorageMultisample";
    struct gl_renderbuffer *rb;
    GLenum baseFormat;
+   GLenum sample_count_error;
    GET_CURRENT_CONTEXT(ctx);
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   if (MESA_VERBOSE & VERBOSE_API) {
+      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),
+                     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),
+                     width, height, samples);
+   }
 
    if (target != GL_RENDERBUFFER_EXT) {
       _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
@@ -1421,7 +1735,8 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
 
    baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
    if (baseFormat == 0) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);
+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat=%s)",
+                  func, _mesa_lookup_enum_by_nr(internalFormat));
       return;
    }
 
@@ -1439,10 +1754,16 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
       /* NumSamples == 0 indicates non-multisampling */
       samples = 0;
    }
-   else if (samples > (GLsizei) ctx->Const.MaxSamples) {
-      /* note: driver may choose to use more samples than what's requested */
-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
-      return;
+   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, target,
+            internalFormat, samples);
+      if (sample_count_error != GL_NO_ERROR) {
+         _mesa_error(ctx, sample_count_error, "%s(samples)", func);
+         return;
+      }
    }
 
    rb = ctx->CurrentRenderbuffer;
@@ -1498,7 +1819,6 @@ _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
 {
    struct gl_renderbuffer *rb;
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (!ctx->Extensions.OES_EGL_image) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
@@ -1526,15 +1846,15 @@ _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
 
 
 /**
- * Helper function for _mesa_GetRenderbufferParameterivEXT() and
- * _mesa_GetFramebufferAttachmentParameterivEXT()
+ * Helper function for _mesa_GetRenderbufferParameteriv() and
+ * _mesa_GetFramebufferAttachmentParameteriv()
  * We have to be careful to respect the base format.  For example, if a
  * renderbuffer/texture was created with internalFormat=GL_RGB but the
  * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
  * we need to return zero.
  */
 static GLint
-get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
+get_component_bits(GLenum pname, GLenum baseFormat, mesa_format format)
 {
    if (_mesa_base_format_has_channel(baseFormat, pname))
       return _mesa_get_format_bits(format, pname);
@@ -1545,7 +1865,7 @@ get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
 
 
 void GLAPIENTRY
-_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
+_mesa_RenderbufferStorage(GLenum target, GLenum internalFormat,
                              GLsizei width, GLsizei height)
 {
    /* GL_ARB_fbo says calling this function is equivalent to calling
@@ -1587,13 +1907,11 @@ _es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
 
 
 void GLAPIENTRY
-_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
+_mesa_GetRenderbufferParameteriv(GLenum target, GLenum pname, GLint *params)
 {
    struct gl_renderbuffer *rb;
    GET_CURRENT_CONTEXT(ctx);
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
    if (target != GL_RENDERBUFFER_EXT) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glGetRenderbufferParameterivEXT(target)");
@@ -1645,7 +1963,7 @@ _mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
 
 
 GLboolean GLAPIENTRY
-_mesa_IsFramebufferEXT(GLuint framebuffer)
+_mesa_IsFramebuffer(GLuint framebuffer)
 {
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
@@ -1674,7 +1992,8 @@ check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
 
    for (i = 0; i < BUFFER_COUNT; i++) {
       struct gl_renderbuffer_attachment *att = fb->Attachment + i;
-      if (att->Texture && _mesa_get_attachment_teximage(att)) {
+      if (att->Texture && att->Renderbuffer->TexImage
+          && driver_RenderTexture_is_safe(att)) {
          ctx->Driver.RenderTexture(ctx, fb, att);
       }
    }
@@ -1696,51 +2015,29 @@ check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
       GLuint i;
       for (i = 0; i < BUFFER_COUNT; i++) {
          struct gl_renderbuffer_attachment *att = fb->Attachment + i;
-         if (att->Texture && att->Renderbuffer) {
-            ctx->Driver.FinishRenderTexture(ctx, att);
+         struct gl_renderbuffer *rb = att->Renderbuffer;
+         if (rb && rb->NeedsFinishRenderTexture) {
+            ctx->Driver.FinishRenderTexture(ctx, rb);
          }
       }
    }
 }
 
 
-void GLAPIENTRY
-_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
+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);
 
-#ifdef DEBUG
-   if (ctx->Extensions.ARB_framebuffer_object) {
-      ASSERT(ctx->Extensions.EXT_framebuffer_object);
-      ASSERT(ctx->Extensions.EXT_framebuffer_blit);
-   }
-#endif
-
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (!ctx->Extensions.EXT_framebuffer_object) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glBindFramebufferEXT(unsupported)");
-      return;
-   }
-
    switch (target) {
    case GL_DRAW_FRAMEBUFFER_EXT:
-      if (!ctx->Extensions.EXT_framebuffer_blit) {
-         _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
-         return;
-      }
       bindDrawBuf = GL_TRUE;
       bindReadBuf = GL_FALSE;
       break;
    case GL_READ_FRAMEBUFFER_EXT:
-      if (!ctx->Extensions.EXT_framebuffer_blit) {
-         _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
-         return;
-      }
       bindDrawBuf = GL_FALSE;
       bindReadBuf = GL_TRUE;
       break;
@@ -1760,7 +2057,7 @@ _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
          /* ID was reserved, but no real framebuffer object made yet */
          newDrawFb = NULL;
       }
-      else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) {
+      else if (!newDrawFb && !allow_user_names) {
          /* All FBO IDs must be Gen'd */
          _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
          return;
@@ -1837,44 +2134,52 @@ _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
    }
 }
 
-
 void GLAPIENTRY
-_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
+_mesa_BindFramebuffer(GLenum target, GLuint framebuffer)
 {
-   GLint i;
    GET_CURRENT_CONTEXT(ctx);
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+   /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
+    * point, but they allow the use of user-generated names.
+    */
+   bind_framebuffer(target, framebuffer, _mesa_is_gles(ctx));
+}
 
-   for (i = 0; i < n; i++) {
-      if (framebuffers[i] > 0) {
-        struct gl_framebuffer *fb;
-        fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
+void GLAPIENTRY
+_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
+{
+   /* This function should not be in the dispatch table for core profile /
+    * OpenGL 3.1, so execution should never get here in those cases -- no
+    * need for an explicit test.
+    */
+   bind_framebuffer(target, framebuffer, true);
+}
+
+void GLAPIENTRY
+_mesa_DeleteFramebuffers(GLsizei n, const GLuint *framebuffers)
+{
+   GLint i;
+   GET_CURRENT_CONTEXT(ctx);
+
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   for (i = 0; i < n; i++) {
+      if (framebuffers[i] > 0) {
+        struct gl_framebuffer *fb;
+        fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
         if (fb) {
             ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
 
             /* check if deleting currently bound framebuffer object */
-            if (ctx->Extensions.EXT_framebuffer_blit) {
-               /* separate draw/read binding points */
-               if (fb == ctx->DrawBuffer) {
-                  /* bind default */
-                  ASSERT(fb->RefCount >= 2);
-                  _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
-               }
-               if (fb == ctx->ReadBuffer) {
-                  /* bind default */
-                  ASSERT(fb->RefCount >= 2);
-                  _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
-               }
+            if (fb == ctx->DrawBuffer) {
+               /* bind default */
+               ASSERT(fb->RefCount >= 2);
+               _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
             }
-            else {
-               /* only one binding point for read/draw buffers */
-               if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {
-                  /* bind default */
-                  ASSERT(fb->RefCount >= 2);
-                  _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
-               }
+            if (fb == ctx->ReadBuffer) {
+               /* bind default */
+               ASSERT(fb->RefCount >= 2);
+               _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, 0);
             }
 
            /* remove from hash table immediately, to free the ID */
@@ -1893,14 +2198,12 @@ _mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
 
 
 void GLAPIENTRY
-_mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)
+_mesa_GenFramebuffers(GLsizei n, GLuint *framebuffers)
 {
    GET_CURRENT_CONTEXT(ctx);
    GLuint first;
    GLint i;
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
    if (n < 0) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)");
       return;
@@ -1924,13 +2227,17 @@ _mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)
 
 
 GLenum GLAPIENTRY
-_mesa_CheckFramebufferStatusEXT(GLenum target)
+_mesa_CheckFramebufferStatus(GLenum target)
 {
    struct gl_framebuffer *buffer;
    GET_CURRENT_CONTEXT(ctx);
 
    ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
 
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glCheckFramebufferStatus(%s)\n",
+                  _mesa_lookup_enum_by_nr(target));
+
    buffer = get_framebuffer_target(ctx, target);
    if (!buffer) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
@@ -1938,8 +2245,12 @@ _mesa_CheckFramebufferStatusEXT(GLenum target)
    }
 
    if (_mesa_is_winsys_fbo(buffer)) {
-      /* The window system / default framebuffer is always complete */
-      return GL_FRAMEBUFFER_COMPLETE_EXT;
+      /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
+      if (buffer != &IncompleteFramebuffer) {
+         return GL_FRAMEBUFFER_COMPLETE_EXT;
+      } else {
+         return GL_FRAMEBUFFER_UNDEFINED;
+      }
    }
 
    /* No need to flush here */
@@ -1980,21 +2291,24 @@ reuse_framebuffer_texture_attachment(struct gl_framebuffer *fb,
 /**
  * Common code called by glFramebufferTexture1D/2D/3DEXT() and
  * glFramebufferTextureLayerEXT().
- * Note: glFramebufferTextureLayerEXT() has no textarget parameter so we'll
- * get textarget=0 in that case.
+ *
+ * \param textarget is the textarget that was passed to the
+ * glFramebufferTexture...() function, or 0 if the corresponding function
+ * doesn't have a textarget parameter.
+ *
+ * \param layered is true if this function was called from
+ * glFramebufferTexture(), false otherwise.
  */
 static void
 framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target, 
                     GLenum attachment, GLenum textarget, GLuint texture,
-                    GLint level, GLint zoffset)
+                    GLint level, GLint zoffset, GLboolean layered)
 {
    struct gl_renderbuffer_attachment *att;
    struct gl_texture_object *texObj = NULL;
    struct gl_framebuffer *fb;
    GLenum maxLevelsTarget;
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
    fb = get_framebuffer_target(ctx, target);
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM,
@@ -2018,14 +2332,46 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
       texObj = _mesa_lookup_texture(ctx, texture);
       if (texObj != NULL) {
          if (textarget == 0) {
-            /* If textarget == 0 it means we're being called by
-             * glFramebufferTextureLayer() and textarget is not used.
-             * The only legal texture types for that function are 3D and
-             * 1D/2D arrays textures.
-             */
-            err = (texObj->Target != GL_TEXTURE_3D) &&
-                (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
-                (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
+            if (layered) {
+               /* We're being called by glFramebufferTexture() and textarget
+                * is not used.
+                */
+               switch (texObj->Target) {
+               case GL_TEXTURE_3D:
+               case GL_TEXTURE_1D_ARRAY_EXT:
+               case GL_TEXTURE_2D_ARRAY_EXT:
+               case GL_TEXTURE_CUBE_MAP:
+               case GL_TEXTURE_CUBE_MAP_ARRAY:
+               case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+                  err = false;
+                  break;
+               case GL_TEXTURE_1D:
+               case GL_TEXTURE_2D:
+               case GL_TEXTURE_RECTANGLE:
+               case GL_TEXTURE_2D_MULTISAMPLE:
+                  /* These texture types are valid to pass to
+                   * glFramebufferTexture(), but since they aren't layered, it
+                   * is equivalent to calling glFramebufferTexture{1D,2D}().
+                   */
+                  err = false;
+                  layered = false;
+                  textarget = texObj->Target;
+                  break;
+               default:
+                  err = true;
+                  break;
+               }
+            } else {
+               /* We're being called by glFramebufferTextureLayer() and
+                * textarget is not used.  The only legal texture types for
+                * that function are 3D and 1D/2D arrays textures.
+                */
+               err = (texObj->Target != GL_TEXTURE_3D) &&
+                  (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
+                  (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT) &&
+                  (texObj->Target != GL_TEXTURE_CUBE_MAP_ARRAY) &&
+                  (texObj->Target != GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
+            }
          }
          else {
             /* Make sure textarget is consistent with the texture's type */
@@ -2058,8 +2404,11 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
          }
       }
       else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
-               (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
-         if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {
+               (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT) ||
+               (texObj->Target == GL_TEXTURE_CUBE_MAP_ARRAY) ||
+               (texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)) {
+         if (zoffset < 0 ||
+             zoffset >= (GLint) ctx->Const.MaxArrayTextureLayers) {
             _mesa_error(ctx, GL_INVALID_VALUE,
                         "glFramebufferTexture%sEXT(layer)", caller);
             return;
@@ -2075,7 +2424,7 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
       }
    }
 
-   att = _mesa_get_attachment(ctx, fb, attachment);
+   att = get_attachment(ctx, fb, attachment);
    if (att == NULL) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glFramebufferTexture%sEXT(attachment)", caller);
@@ -2109,8 +2458,8 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
         reuse_framebuffer_texture_attachment(fb, BUFFER_STENCIL,
                                              BUFFER_DEPTH);
       } else {
-        _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
-                                     level, zoffset);
+        set_texture_attachment(ctx, fb, att, texObj, textarget,
+                                     level, zoffset, layered);
         if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
            /* Above we created a new renderbuffer and attached it to the
             * depth attachment point. Now attach it to the stencil attachment
@@ -2133,10 +2482,10 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
       texObj->_RenderToTexture = GL_TRUE;
    }
    else {
-      _mesa_remove_attachment(ctx, att);
+      remove_attachment(ctx, att);
       if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
         assert(att == &fb->Attachment[BUFFER_DEPTH]);
-        _mesa_remove_attachment(ctx, &fb->Attachment[BUFFER_STENCIL]);
+        remove_attachment(ctx, &fb->Attachment[BUFFER_STENCIL]);
       }
    }
 
@@ -2148,7 +2497,7 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
 
 
 void GLAPIENTRY
-_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferTexture1D(GLenum target, GLenum attachment,
                               GLenum textarget, GLuint texture, GLint level)
 {
    GET_CURRENT_CONTEXT(ctx);
@@ -2176,12 +2525,12 @@ _mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
    }
 
    framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
-                       level, 0);
+                       level, 0, GL_FALSE);
 }
 
 
 void GLAPIENTRY
-_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferTexture2D(GLenum target, GLenum attachment,
                               GLenum textarget, GLuint texture, GLint level)
 {
    GET_CURRENT_CONTEXT(ctx);
@@ -2209,6 +2558,11 @@ _mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
          error = (_mesa_is_gles(ctx) && ctx->Version < 30)
             || !ctx->Extensions.EXT_texture_array;
          break;
+      case GL_TEXTURE_2D_MULTISAMPLE:
+      case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+         error = _mesa_is_gles(ctx)
+            || !ctx->Extensions.ARB_texture_multisample;
+         break;
       default:
          error = GL_TRUE;
       }
@@ -2222,12 +2576,12 @@ _mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
    }
 
    framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
-                       level, 0);
+                       level, 0, GL_FALSE);
 }
 
 
 void GLAPIENTRY
-_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferTexture3D(GLenum target, GLenum attachment,
                               GLenum textarget, GLuint texture,
                               GLint level, GLint zoffset)
 {
@@ -2240,23 +2594,39 @@ _mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
    }
 
    framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,
-                       level, zoffset);
+                       level, zoffset, GL_FALSE);
 }
 
 
 void GLAPIENTRY
-_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferTextureLayer(GLenum target, GLenum attachment,
                                  GLuint texture, GLint level, GLint layer)
 {
    GET_CURRENT_CONTEXT(ctx);
 
    framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
-                       level, layer);
+                       level, layer, GL_FALSE);
 }
 
 
 void GLAPIENTRY
-_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferTexture(GLenum target, GLenum attachment,
+                         GLuint texture, GLint level)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (_mesa_has_geometry_shaders(ctx)) {
+      framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
+                          level, 0, GL_TRUE);
+   } else {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "unsupported function (glFramebufferTexture) called");
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferRenderbuffer(GLenum target, GLenum attachment,
                                  GLenum renderbufferTarget,
                                  GLuint renderbuffer)
 {
@@ -2265,8 +2635,6 @@ _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
    struct gl_renderbuffer *rb;
    GET_CURRENT_CONTEXT(ctx);
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
    fb = get_framebuffer_target(ctx, target);
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glFramebufferRenderbufferEXT(target)");
@@ -2285,7 +2653,7 @@ _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
       return;
    }
 
-   att = _mesa_get_attachment(ctx, fb, attachment);
+   att = get_attachment(ctx, fb, attachment);
    if (att == NULL) {
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "glFramebufferRenderbufferEXT(invalid attachment %s)",
@@ -2340,7 +2708,7 @@ _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
 
 
 void GLAPIENTRY
-_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
+_mesa_GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment,
                                              GLenum pname, GLint *params)
 {
    const struct gl_renderbuffer_attachment *att;
@@ -2348,8 +2716,6 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
    GLenum err;
    GET_CURRENT_CONTEXT(ctx);
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
    /* The error differs in GL and GLES. */
    err = _mesa_is_desktop_gl(ctx) ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
 
@@ -2371,17 +2737,25 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
        * OES_framebuffer_object spec refers to the EXT_framebuffer_object
        * spec.
        */
-      if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object) {
+      if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object)
+          && !_mesa_is_gles3(ctx)) {
         _mesa_error(ctx, GL_INVALID_OPERATION,
                     "glGetFramebufferAttachmentParameteriv(bound FBO = 0)");
         return;
       }
+
+      if (_mesa_is_gles3(ctx) && attachment != GL_BACK &&
+          attachment != GL_DEPTH && attachment != GL_STENCIL) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glGetFramebufferAttachmentParameteriv(attachment)");
+         return;
+      }
       /* the default / window-system FBO */
       att = _mesa_get_fb0_attachment(ctx, buffer, attachment);
    }
    else {
       /* user-created framebuffer FBO */
-      att = _mesa_get_attachment(ctx, buffer, attachment);
+      att = get_attachment(ctx, buffer, attachment);
    }
 
    if (att == NULL) {
@@ -2393,8 +2767,8 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
    if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
       /* the depth and stencil attachments must point to the same buffer */
       const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt;
-      depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
-      stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
+      depthAtt = get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
+      stencilAtt = get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
       if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {
          _mesa_error(ctx, GL_INVALID_OPERATION,
                      "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
@@ -2494,7 +2868,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
       }
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
-      if ((ctx->API != API_OPENGL || !ctx->Extensions.ARB_framebuffer_object)
+      if ((ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_framebuffer_object)
           && ctx->API != API_OPENGL_CORE
           && !_mesa_is_gles3(ctx)) {
          goto invalid_pname_enum;
@@ -2504,12 +2878,28 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else {
-         gl_format format = att->Renderbuffer->Format;
-         if (format == MESA_FORMAT_S8) {
+         mesa_format format = att->Renderbuffer->Format;
+
+         /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
+          * 3.0.1 spec says:
+          *
+          *     "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
+          *     attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
+          *     generate an INVALID_OPERATION error.
+          */
+         if (_mesa_is_gles3(ctx) && attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glGetFramebufferAttachmentParameteriv(cannot query "
+                        "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
+                        "GL_DEPTH_STENCIL_ATTACHMENT");
+            return;
+         }
+
+         if (format == MESA_FORMAT_S_UINT8) {
             /* special cases */
             *params = GL_INDEX;
          }
-         else if (format == MESA_FORMAT_Z32_FLOAT_X24S8) {
+         else if (format == MESA_FORMAT_Z32_FLOAT_S8X24_UINT) {
             /* depends on the attachment parameter */
             if (attachment == GL_STENCIL_ATTACHMENT) {
                *params = GL_INDEX;
@@ -2558,6 +2948,18 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
                        " invalid FBO attachment structure");
       }
       return;
+   case GL_FRAMEBUFFER_ATTACHMENT_LAYERED:
+      if (!_mesa_has_geometry_shaders(ctx)) {
+         goto invalid_pname_enum;
+      } else if (att->Type == GL_TEXTURE) {
+         *params = att->Layered;
+      } else if (att->Type == GL_NONE) {
+         _mesa_error(ctx, err,
+                     "glGetFramebufferAttachmentParameteriv(pname)");
+      } else {
+         goto invalid_pname_enum;
+      }
+      return;
    default:
       goto invalid_pname_enum;
    }
@@ -2571,500 +2973,6 @@ invalid_pname_enum:
 }
 
 
-void GLAPIENTRY
-_mesa_GenerateMipmapEXT(GLenum target)
-{
-   struct gl_texture_image *srcImage;
-   struct gl_texture_object *texObj;
-   GLboolean error;
-
-   GET_CURRENT_CONTEXT(ctx);
-
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
-
-   switch (target) {
-   case GL_TEXTURE_1D:
-      error = _mesa_is_gles(ctx);
-      break;
-   case GL_TEXTURE_2D:
-      error = GL_FALSE;
-      break;
-   case GL_TEXTURE_3D:
-      error = ctx->API == API_OPENGLES;
-      break;
-   case GL_TEXTURE_CUBE_MAP:
-      error = !ctx->Extensions.ARB_texture_cube_map;
-      break;
-   case GL_TEXTURE_1D_ARRAY:
-      error = _mesa_is_gles(ctx) || !ctx->Extensions.EXT_texture_array;
-      break;
-   case GL_TEXTURE_2D_ARRAY:
-      error = (_mesa_is_gles(ctx) && ctx->Version < 30)
-         || !ctx->Extensions.EXT_texture_array;
-      break;
-   default:
-      error = GL_TRUE;
-   }
-
-   if (error) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target=%s)",
-                  _mesa_lookup_enum_by_nr(target));
-      return;
-   }
-
-   texObj = _mesa_get_current_tex_object(ctx, target);
-
-   if (texObj->BaseLevel >= texObj->MaxLevel) {
-      /* nothing to do */
-      return;
-   }
-
-   if (texObj->Target == GL_TEXTURE_CUBE_MAP &&
-       !_mesa_cube_complete(texObj)) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGenerateMipmap(incomplete cube map)");
-      return;
-   }
-
-   _mesa_lock_texture(ctx, texObj);
-
-   srcImage = _mesa_select_tex_image(ctx, texObj, target, texObj->BaseLevel);
-   if (!srcImage) {
-      _mesa_unlock_texture(ctx, texObj);
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGenerateMipmap(zero size base image)");
-      return;
-   }
-
-   if (target == GL_TEXTURE_CUBE_MAP) {
-      GLuint face;
-      for (face = 0; face < 6; face++)
-        ctx->Driver.GenerateMipmap(ctx,
-                                   GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,
-                                   texObj);
-   }
-   else {
-      ctx->Driver.GenerateMipmap(ctx, target, texObj);
-   }
-   _mesa_unlock_texture(ctx, texObj);
-}
-
-
-static const struct gl_renderbuffer_attachment *
-find_attachment(const struct gl_framebuffer *fb,
-                const struct gl_renderbuffer *rb)
-{
-   GLuint i;
-   for (i = 0; i < Elements(fb->Attachment); i++) {
-      if (fb->Attachment[i].Renderbuffer == rb)
-         return &fb->Attachment[i];
-   }
-   return NULL;
-}
-
-
-/**
- * Helper function for checking if the datatypes of color buffers are
- * compatible for glBlitFramebuffer.  From the 3.1 spec, page 198:
- *
- * "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT
- *  and any of the following conditions hold:
- *   - The read buffer contains fixed-point or floating-point values and any
- *     draw buffer contains neither fixed-point nor floating-point values.
- *   - The read buffer contains unsigned integer values and any draw buffer
- *     does not contain unsigned integer values.
- *   - The read buffer contains signed integer values and any draw buffer
- *     does not contain signed integer values."
- */
-static GLboolean
-compatible_color_datatypes(gl_format srcFormat, gl_format dstFormat)
-{
-   GLenum srcType = _mesa_get_format_datatype(srcFormat);
-   GLenum dstType = _mesa_get_format_datatype(dstFormat);
-
-   if (srcType != GL_INT && srcType != GL_UNSIGNED_INT) {
-      assert(srcType == GL_UNSIGNED_NORMALIZED ||
-             srcType == GL_SIGNED_NORMALIZED ||
-             srcType == GL_FLOAT);
-      /* Boil any of those types down to GL_FLOAT */
-      srcType = GL_FLOAT;
-   }
-
-   if (dstType != GL_INT && dstType != GL_UNSIGNED_INT) {
-      assert(dstType == GL_UNSIGNED_NORMALIZED ||
-             dstType == GL_SIGNED_NORMALIZED ||
-             dstType == GL_FLOAT);
-      /* Boil any of those types down to GL_FLOAT */
-      dstType = GL_FLOAT;
-   }
-
-   return srcType == dstType;
-}
-
-
-/**
- * Return the equivalent non-generic internal format.
- * This is useful for comparing whether two internal formats are semantically
- * equivalent.
- */
-static GLenum
-get_nongeneric_internalformat(GLenum format)
-{
-   switch (format) {
-      /* GL 1.1 formats. */
-      case 4:
-      case GL_RGBA:
-         return GL_RGBA8;
-
-      case 3:
-      case GL_RGB:
-         return GL_RGB8;
-
-      case 2:
-      case GL_LUMINANCE_ALPHA:
-         return GL_LUMINANCE8_ALPHA8;
-
-      case 1:
-      case GL_LUMINANCE:
-         return GL_LUMINANCE8;
-
-      case GL_ALPHA:
-         return GL_ALPHA8;
-
-      case GL_INTENSITY:
-         return GL_INTENSITY8;
-
-      /* GL_ARB_texture_rg */
-      case GL_RED:
-         return GL_R8;
-
-      case GL_RG:
-         return GL_RG8;
-
-      /* GL_EXT_texture_sRGB */
-      case GL_SRGB:
-         return GL_SRGB8;
-
-      case GL_SRGB_ALPHA:
-         return GL_SRGB8_ALPHA8;
-
-      case GL_SLUMINANCE:
-         return GL_SLUMINANCE8;
-
-      case GL_SLUMINANCE_ALPHA:
-         return GL_SLUMINANCE8_ALPHA8;
-
-      /* GL_EXT_texture_snorm */
-      case GL_RGBA_SNORM:
-         return GL_RGBA8_SNORM;
-
-      case GL_RGB_SNORM:
-         return GL_RGB8_SNORM;
-
-      case GL_RG_SNORM:
-         return GL_RG8_SNORM;
-
-      case GL_RED_SNORM:
-         return GL_R8_SNORM;
-
-      case GL_LUMINANCE_ALPHA_SNORM:
-         return GL_LUMINANCE8_ALPHA8_SNORM;
-
-      case GL_LUMINANCE_SNORM:
-         return GL_LUMINANCE8_SNORM;
-
-      case GL_ALPHA_SNORM:
-         return GL_ALPHA8_SNORM;
-
-      case GL_INTENSITY_SNORM:
-         return GL_INTENSITY8_SNORM;
-
-      default:
-         return format;
-   }
-}
-
-
-static GLboolean
-compatible_resolve_formats(const struct gl_renderbuffer *colorReadRb,
-                           const struct gl_renderbuffer *colorDrawRb)
-{
-   /* The simple case where we know the backing formats are the same.
-    */
-   if (_mesa_get_srgb_format_linear(colorReadRb->Format) ==
-       _mesa_get_srgb_format_linear(colorDrawRb->Format)) {
-      return GL_TRUE;
-   }
-
-   /* The Mesa formats are different, so we must check whether the internal
-    * formats are compatible.
-    *
-    * Under some circumstances, the user may request e.g. two GL_RGBA8
-    * textures and get two entirely different Mesa formats like RGBA8888 and
-    * ARGB8888. Drivers behaving like that should be able to cope with
-    * non-matching formats by themselves, because it's not the user's fault.
-    */
-   if (get_nongeneric_internalformat(colorReadRb->InternalFormat) ==
-       get_nongeneric_internalformat(colorDrawRb->InternalFormat)) {
-      return GL_TRUE;
-   }
-
-   return GL_FALSE;
-}
-
-
-/**
- * Blit rectangular region, optionally from one framebuffer to another.
- *
- * Note, if the src buffer is multisampled and the dest is not, this is
- * when the samples must be resolved to a single color.
- */
-void GLAPIENTRY
-_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
-                         GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
-                         GLbitfield mask, GLenum filter)
-{
-   const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
-                                     GL_DEPTH_BUFFER_BIT |
-                                     GL_STENCIL_BUFFER_BIT);
-   const struct gl_framebuffer *readFb, *drawFb;
-   const struct gl_renderbuffer *colorReadRb, *colorDrawRb;
-   GET_CURRENT_CONTEXT(ctx);
-
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx,
-                  "glBlitFramebuffer(%d, %d, %d, %d,  %d, %d, %d, %d, 0x%x, %s)\n",
-                  srcX0, srcY0, srcX1, srcY1,
-                  dstX0, dstY0, dstX1, dstY1,
-                  mask, _mesa_lookup_enum_by_nr(filter));
-
-   if (ctx->NewState) {
-      _mesa_update_state(ctx);
-   }
-
-   readFb = ctx->ReadBuffer;
-   drawFb = ctx->DrawBuffer;
-
-   if (!readFb || !drawFb) {
-      /* This will normally never happen but someday we may want to
-       * support MakeCurrent() with no drawables.
-       */
-      return;
-   }
-
-   /* check for complete framebuffers */
-   if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
-       readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
-      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
-                  "glBlitFramebufferEXT(incomplete draw/read buffers)");
-      return;
-   }
-
-   if (filter != GL_NEAREST && filter != GL_LINEAR) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
-      return;
-   }
-
-   if (mask & ~legalMaskBits) {
-      _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
-      return;
-   }
-
-   /* depth/stencil must be blitted with nearest filtering */
-   if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
-        && filter != GL_NEAREST) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-             "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter)");
-      return;
-   }
-
-   /* get color read/draw renderbuffers */
-   if (mask & GL_COLOR_BUFFER_BIT) {
-      colorReadRb = readFb->_ColorReadBuffer;
-      colorDrawRb = drawFb->_ColorDrawBuffers[0];
-
-      /* From the EXT_framebuffer_object spec:
-       *
-       *     "If a buffer is specified in <mask> and does not exist in both
-       *     the read and draw framebuffers, the corresponding bit is silently
-       *     ignored."
-       */
-      if ((colorReadRb == NULL) || (colorDrawRb == NULL)) {
-        colorReadRb = colorDrawRb = NULL;
-        mask &= ~GL_COLOR_BUFFER_BIT;
-      }
-      else if (!compatible_color_datatypes(colorReadRb->Format,
-                                           colorDrawRb->Format)) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glBlitFramebufferEXT(color buffer datatypes mismatch)");
-         return;
-      }
-   }
-   else {
-      colorReadRb = colorDrawRb = NULL;
-   }
-
-   if (mask & GL_STENCIL_BUFFER_BIT) {
-      struct gl_renderbuffer *readRb =
-         readFb->Attachment[BUFFER_STENCIL].Renderbuffer;
-      struct gl_renderbuffer *drawRb =
-         drawFb->Attachment[BUFFER_STENCIL].Renderbuffer;
-
-      /* From the EXT_framebuffer_object spec:
-       *
-       *     "If a buffer is specified in <mask> and does not exist in both
-       *     the read and draw framebuffers, the corresponding bit is silently
-       *     ignored."
-       */
-      if ((readRb == NULL) || (drawRb == NULL)) {
-        mask &= ~GL_STENCIL_BUFFER_BIT;
-      }
-      else if (_mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
-              _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
-        /* There is no need to check the stencil datatype here, because
-         * there is only one: GL_UNSIGNED_INT.
-         */
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glBlitFramebufferEXT(stencil buffer size mismatch)");
-         return;
-      }
-   }
-
-   if (mask & GL_DEPTH_BUFFER_BIT) {
-      struct gl_renderbuffer *readRb =
-         readFb->Attachment[BUFFER_DEPTH].Renderbuffer;
-      struct gl_renderbuffer *drawRb =
-         drawFb->Attachment[BUFFER_DEPTH].Renderbuffer;
-
-      /* From the EXT_framebuffer_object spec:
-       *
-       *     "If a buffer is specified in <mask> and does not exist in both
-       *     the read and draw framebuffers, the corresponding bit is silently
-       *     ignored."
-       */
-      if ((readRb == NULL) || (drawRb == NULL)) {
-        mask &= ~GL_DEPTH_BUFFER_BIT;
-      }
-      else if ((_mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
-               _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) ||
-              (_mesa_get_format_datatype(readRb->Format) !=
-               _mesa_get_format_datatype(drawRb->Format))) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glBlitFramebufferEXT(depth buffer format mismatch)");
-         return;
-      }
-   }
-
-   if (readFb->Visual.samples > 0 &&
-       drawFb->Visual.samples > 0 &&
-       readFb->Visual.samples != drawFb->Visual.samples) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glBlitFramebufferEXT(mismatched samples)");
-      return;
-   }
-
-   /* extra checks for multisample copies... */
-   if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
-      /* src and dest region sizes must be the same */
-      if (abs(srcX1 - srcX0) != abs(dstX1 - dstX0) ||
-          abs(srcY1 - srcY0) != abs(dstY1 - dstY0)) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                "glBlitFramebufferEXT(bad src/dst multisample region sizes)");
-         return;
-      }
-
-      /* color formats must match */
-      if (colorReadRb &&
-          colorDrawRb &&
-          !compatible_resolve_formats(colorReadRb, colorDrawRb)) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                "glBlitFramebufferEXT(bad src/dst multisample pixel formats)");
-         return;
-      }
-   }
-
-   if (filter == GL_LINEAR && (mask & GL_COLOR_BUFFER_BIT)) {
-      /* 3.1 spec, page 199:
-       * "Calling BlitFramebuffer will result in an INVALID_OPERATION error
-       * if filter is LINEAR and read buffer contains integer data."
-       */
-      GLenum type = _mesa_get_format_datatype(colorReadRb->Format);
-      if (type == GL_INT || type == GL_UNSIGNED_INT) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glBlitFramebufferEXT(integer color type)");
-         return;
-      }
-   }
-
-   if (!ctx->Extensions.EXT_framebuffer_blit) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
-      return;
-   }
-
-   /* Debug code */
-   if (DEBUG_BLIT) {
-      printf("glBlitFramebuffer(%d, %d, %d, %d,  %d, %d, %d, %d,"
-            " 0x%x, 0x%x)\n",
-            srcX0, srcY0, srcX1, srcY1,
-            dstX0, dstY0, dstX1, dstY1,
-            mask, filter);
-      if (colorReadRb) {
-         const struct gl_renderbuffer_attachment *att;
-
-         att = find_attachment(readFb, colorReadRb);
-         printf("  Src FBO %u  RB %u (%dx%d)  ",
-               readFb->Name, colorReadRb->Name,
-               colorReadRb->Width, colorReadRb->Height);
-         if (att && att->Texture) {
-            printf("Tex %u  tgt 0x%x  level %u  face %u",
-                  att->Texture->Name,
-                  att->Texture->Target,
-                  att->TextureLevel,
-                  att->CubeMapFace);
-         }
-         printf("\n");
-
-         att = find_attachment(drawFb, colorDrawRb);
-         printf("  Dst FBO %u  RB %u (%dx%d)  ",
-               drawFb->Name, colorDrawRb->Name,
-               colorDrawRb->Width, colorDrawRb->Height);
-         if (att && att->Texture) {
-            printf("Tex %u  tgt 0x%x  level %u  face %u",
-                  att->Texture->Name,
-                  att->Texture->Target,
-                  att->TextureLevel,
-                  att->CubeMapFace);
-         }
-         printf("\n");
-      }
-   }
-
-   if (!mask) {
-      return;
-   }
-
-   ASSERT(ctx->Driver.BlitFramebuffer);
-   ctx->Driver.BlitFramebuffer(ctx,
-                               srcX0, srcY0, srcX1, srcY1,
-                               dstX0, dstY0, dstX1, dstY1,
-                               mask, filter);
-}
-
-
-void GLAPIENTRY
-_mesa_FramebufferTextureFaceARB(GLenum target, GLenum attachment,
-                                GLuint texture, GLint level, GLenum face)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   _mesa_error(ctx, GL_INVALID_OPERATION,
-               "glFramebufferTextureFaceARB "
-               "not implemented!");
-}
-
 static void
 invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
                                const GLenum *attachments, GLint x, GLint y,
@@ -3074,8 +2982,6 @@ invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
    struct gl_framebuffer *fb;
    GET_CURRENT_CONTEXT(ctx);
 
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
    fb = get_framebuffer_target(ctx, target);
    if (!fb) {
       _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", name);
@@ -3114,7 +3020,7 @@ invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
             /* Accumulation buffers and auxilary buffers were removed in
              * OpenGL 3.1, and they never existed in OpenGL ES.
              */
-            if (ctx->API != API_OPENGL)
+            if (ctx->API != API_OPENGL_COMPAT)
                goto invalid_enum;
             break;
          case GL_COLOR:
@@ -3152,12 +3058,13 @@ invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
          case GL_COLOR_ATTACHMENT13:
          case GL_COLOR_ATTACHMENT14:
          case GL_COLOR_ATTACHMENT15: {
-            const int k = attachments[i] - GL_COLOR_ATTACHMENT0;
+            unsigned k = attachments[i] - GL_COLOR_ATTACHMENT0;
             if (k >= ctx->Const.MaxColorAttachments) {
                _mesa_error(ctx, GL_INVALID_OPERATION,
                            "%s(attachment >= max. color attachments)", name);
                return;
             }
+            break;
          }
          default:
             goto invalid_enum;
@@ -3205,3 +3112,56 @@ _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
                                   0, 0, MAX_VIEWPORT_WIDTH, MAX_VIEWPORT_HEIGHT,
                                   "glInvalidateFramebuffer");
 }
+
+void GLAPIENTRY
+_mesa_DiscardFramebufferEXT(GLenum target, GLsizei numAttachments,
+                            const GLenum *attachments)
+{
+   struct gl_framebuffer *fb;
+   GLint i;
+
+   GET_CURRENT_CONTEXT(ctx);
+
+   fb = get_framebuffer_target(ctx, target);
+   if (!fb) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+         "glDiscardFramebufferEXT(target %s)",
+         _mesa_lookup_enum_by_nr(target));
+      return;
+   }
+
+   if (numAttachments < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE,
+                  "glDiscardFramebufferEXT(numAttachments < 0)");
+      return;
+   }
+
+   for (i = 0; i < numAttachments; i++) {
+      switch (attachments[i]) {
+      case GL_COLOR:
+      case GL_DEPTH:
+      case GL_STENCIL:
+         if (_mesa_is_user_fbo(fb))
+            goto invalid_enum;
+         break;
+      case GL_COLOR_ATTACHMENT0:
+      case GL_DEPTH_ATTACHMENT:
+      case GL_STENCIL_ATTACHMENT:
+         if (_mesa_is_winsys_fbo(fb))
+            goto invalid_enum;
+         break;
+      default:
+         goto invalid_enum;
+      }
+   }
+
+   if (ctx->Driver.DiscardFramebuffer)
+      ctx->Driver.DiscardFramebuffer(ctx, target, numAttachments, attachments);
+
+   return;
+
+invalid_enum:
+   _mesa_error(ctx, GL_INVALID_ENUM,
+               "glDiscardFramebufferEXT(attachment %s)",
+              _mesa_lookup_enum_by_nr(attachments[i]));
+}