mesa: Disallow SNORM formats for renderbuffers in OpenGL ES
[mesa.git] / src / mesa / main / fbobject.c
index 84969360d92caa061e23b72ec4fee76ad1c5231b..ab53bac75399caa99756e5d2bb7f2769529d36da 100644 (file)
@@ -31,6 +31,7 @@
  *   Brian Paul
  */
 
+#include <stdbool.h>
 
 #include "buffers.h"
 #include "context.h"
@@ -38,6 +39,7 @@
 #include "fbobject.h"
 #include "formats.h"
 #include "framebuffer.h"
+#include "glformats.h"
 #include "hash.h"
 #include "macros.h"
 #include "mfeatures.h"
@@ -48,9 +50,6 @@
 #include "texobj.h"
 
 
-/** Set this to 1 to help debug FBO incompleteness problems */
-#define DEBUG_FBO 0
-
 /** Set this to 1 to debug/log glBlitFramebuffer() calls */
 #define DEBUG_BLIT 0
 
@@ -78,36 +77,8 @@ static struct gl_renderbuffer DummyRenderbuffer;
 static struct gl_framebuffer IncompleteFramebuffer;
 
 
-static INLINE GLboolean
-is_cube_face(GLenum target)
-{
-   return (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
-           target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z);
-}
-
-
-/**
- * Is the given FBO a user-created FBO?
- */
-static INLINE GLboolean
-is_user_fbo(const struct gl_framebuffer *fb)
-{
-   return fb->Name != 0;
-}
-
-
-/**
- * Is the given FBO a window system FBO (like an X window)?
- */
-static INLINE GLboolean
-is_winsys_fbo(const struct gl_framebuffer *fb)
-{
-   return fb->Name == 0;
-}
-
-
 static void
-delete_dummy_renderbuffer(struct gl_renderbuffer *rb)
+delete_dummy_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb)
 {
    /* no op */
 }
@@ -192,11 +163,13 @@ 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) ||
+      (ctx->Extensions.EXT_framebuffer_blit && _mesa_is_desktop_gl(ctx));
    switch (target) {
    case GL_DRAW_FRAMEBUFFER:
-      return ctx->Extensions.EXT_framebuffer_blit ? ctx->DrawBuffer : NULL;
+      return have_fb_blit ? ctx->DrawBuffer : NULL;
    case GL_READ_FRAMEBUFFER:
-      return ctx->Extensions.EXT_framebuffer_blit ? ctx->ReadBuffer : NULL;
+      return have_fb_blit ? ctx->ReadBuffer : NULL;
    case GL_FRAMEBUFFER_EXT:
       return ctx->DrawBuffer;
    default:
@@ -219,7 +192,7 @@ _mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
 {
    GLuint i;
 
-   assert(is_user_fbo(fb));
+   assert(_mesa_is_user_fbo(fb));
 
    switch (attachment) {
    case GL_COLOR_ATTACHMENT0_EXT:
@@ -238,19 +211,22 @@ _mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
    case GL_COLOR_ATTACHMENT13_EXT:
    case GL_COLOR_ATTACHMENT14_EXT:
    case GL_COLOR_ATTACHMENT15_EXT:
+      /* Only OpenGL ES 1.x forbids color attachments other than
+       * GL_COLOR_ATTACHMENT0.  For all other APIs the limit set by the
+       * hardware is used.
+       */
       i = attachment - GL_COLOR_ATTACHMENT0_EXT;
-      if (i >= ctx->Const.MaxColorAttachments) {
+      if (i >= ctx->Const.MaxColorAttachments
+         || (i > 0 && ctx->API == API_OPENGLES)) {
         return NULL;
       }
       return &fb->Attachment[BUFFER_COLOR0 + i];
    case GL_DEPTH_STENCIL_ATTACHMENT:
+      if (!_mesa_is_desktop_gl(ctx))
+        return NULL;
       /* fall-through */
-   case GL_DEPTH_BUFFER:
-      /* fall-through / new in GL 3.0 */
    case GL_DEPTH_ATTACHMENT_EXT:
       return &fb->Attachment[BUFFER_DEPTH];
-   case GL_STENCIL_BUFFER:
-      /* fall-through / new in GL 3.0 */
    case GL_STENCIL_ATTACHMENT_EXT:
       return &fb->Attachment[BUFFER_STENCIL];
    default:
@@ -267,7 +243,7 @@ static struct gl_renderbuffer_attachment *
 _mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
                          GLenum attachment)
 {
-   assert(is_winsys_fbo(fb));
+   assert(_mesa_is_winsys_fbo(fb));
 
    switch (attachment) {
    case GL_FRONT_LEFT:
@@ -283,13 +259,34 @@ _mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
          return &fb->Attachment[BUFFER_AUX0];
       }
       return NULL;
-   case GL_DEPTH_BUFFER:
-      /* fall-through / new in GL 3.0 */
-   case GL_DEPTH_ATTACHMENT_EXT:
+
+   /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
+    *
+    *     "If the default framebuffer is bound to target, then attachment must
+    *     be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
+    *     identifying a color buffer; DEPTH, identifying the depth buffer; or
+    *     STENCIL, identifying the stencil buffer."
+    *
+    * Revision #34 of the ARB_framebuffer_object spec has essentially the same
+    * language.  However, revision #33 of the ARB_framebuffer_object spec
+    * says:
+    *
+    *     "If the default framebuffer is bound to <target>, then <attachment>
+    *     must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
+    *     DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
+    *     depth buffer, or the stencil buffer, and <pname> may be
+    *     FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
+    *     FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
+    *
+    * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
+    * from glext.h, so shipping apps should not use those values.
+    *
+    * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
+    * support queries of the window system FBO.
+    */
+   case GL_DEPTH:
       return &fb->Attachment[BUFFER_DEPTH];
-   case GL_STENCIL_BUFFER:
-      /* fall-through / new in GL 3.0 */
-   case GL_STENCIL_ATTACHMENT_EXT:
+   case GL_STENCIL:
       return &fb->Attachment[BUFFER_STENCIL];
    default:
       return NULL;
@@ -463,11 +460,9 @@ _mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
 static void
 att_incomplete(const char *msg)
 {
-#if DEBUG_FBO
-   _mesa_debug(NULL, "attachment incomplete: %s\n", msg);
-#else
-   (void) msg;
-#endif
+   if (MESA_DEBUG_FLAGS & DEBUG_INCOMPLETE_FBO) {
+      _mesa_debug(NULL, "attachment incomplete: %s\n", msg);
+   }
 }
 
 
@@ -477,12 +472,9 @@ att_incomplete(const char *msg)
 static void
 fbo_incomplete(const char *msg, int index)
 {
-#if DEBUG_FBO
-   _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
-#else
-   (void) msg;
-   (void) index;
-#endif
+   if (MESA_DEBUG_FLAGS & DEBUG_INCOMPLETE_FBO) {
+      _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
+   }
 }
 
 
@@ -692,7 +684,10 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
    GLint i;
    GLuint j;
 
-   assert(is_user_fbo(fb));
+   assert(_mesa_is_user_fbo(fb));
+
+   /* we're changing framebuffer fields here */
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
 
    numImages = 0;
    fb->Width = 0;
@@ -800,7 +795,7 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
                fbo_incomplete("width or height mismatch", -1);
                return;
             }
-            /* check that all color buffer have same format */
+            /* 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);
@@ -812,13 +807,20 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
             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)
+       */
+      if (att->Type == GL_RENDERBUFFER &&
+          att->Renderbuffer->Format == MESA_FORMAT_NONE) {
+         fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
+         fbo_incomplete("unsupported renderbuffer format", i);
+         return;
       }
    }
 
-#if FEATURE_GL
-   if (ctx->API == API_OPENGL && !ctx->Extensions.ARB_ES2_compatibility) {
+   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) {
@@ -845,9 +847,6 @@ _mesa_test_framebuffer_completeness(struct gl_context *ctx,
         }
       }
    }
-#else
-   (void) j;
-#endif
 
    if (numImages == 0) {
       fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
@@ -885,7 +884,7 @@ _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);
@@ -899,7 +898,7 @@ _mesa_IsRenderbufferEXT(GLuint renderbuffer)
 
 
 void GLAPIENTRY
-_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
+_mesa_BindRenderbuffer(GLenum target, GLuint renderbuffer)
 {
    struct gl_renderbuffer *newRb;
    GET_CURRENT_CONTEXT(ctx);
@@ -921,7 +920,9 @@ _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
+               && _mesa_is_desktop_gl(ctx)
+               && ctx->Extensions.ARB_framebuffer_object) {
          /* All RB IDs must be Gen'd */
          _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");
          return;
@@ -971,7 +972,7 @@ detach_renderbuffer(struct gl_context *ctx,
 
 
 void GLAPIENTRY
-_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
+_mesa_DeleteRenderbuffers(GLsizei n, const GLuint *renderbuffers)
 {
    GLint i;
    GET_CURRENT_CONTEXT(ctx);
@@ -988,13 +989,13 @@ _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);
             }
 
-            if (is_user_fbo(ctx->DrawBuffer)) {
+            if (_mesa_is_user_fbo(ctx->DrawBuffer)) {
                detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
             }
-            if (is_user_fbo(ctx->ReadBuffer)
+            if (_mesa_is_user_fbo(ctx->ReadBuffer)
                 && ctx->ReadBuffer != ctx->DrawBuffer) {
                detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
             }
@@ -1016,7 +1017,7 @@ _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;
@@ -1073,13 +1074,15 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_ALPHA8:
    case GL_ALPHA12:
    case GL_ALPHA16:
-      return ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
+      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->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
+      return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
+         ? GL_LUMINANCE : 0;
    case GL_LUMINANCE_ALPHA:
    case GL_LUMINANCE4_ALPHA4:
    case GL_LUMINANCE6_ALPHA2:
@@ -1087,140 +1090,251 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
    case GL_LUMINANCE12_ALPHA4:
    case GL_LUMINANCE12_ALPHA12:
    case GL_LUMINANCE16_ALPHA16:
-      return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
+      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->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
+      return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
+         ? GL_INTENSITY : 0;
+   case GL_RGB8:
+      return GL_RGB;
    case GL_RGB:
    case GL_R3_G3_B2:
    case GL_RGB4:
    case GL_RGB5:
-   case GL_RGB8:
    case GL_RGB10:
    case GL_RGB12:
    case GL_RGB16:
+      return _mesa_is_desktop_gl(ctx) ? GL_RGB : 0;
    case GL_SRGB8_EXT:
-      return GL_RGB;
-   case GL_RGBA:
-   case GL_RGBA2:
+      return _mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx) ? GL_RGB : 0;
    case GL_RGBA4:
    case GL_RGB5_A1:
    case GL_RGBA8:
-   case GL_RGB10_A2:
+      return GL_RGBA;
+   case GL_RGBA:
+   case GL_RGBA2:
    case GL_RGBA12:
    case GL_RGBA16:
+      return _mesa_is_desktop_gl(ctx) ? GL_RGBA : 0;
+   case GL_RGB10_A2:
    case GL_SRGB8_ALPHA8_EXT:
-      return GL_RGBA;
+      return _mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx) ? GL_RGBA : 0;
    case GL_STENCIL_INDEX:
    case GL_STENCIL_INDEX1_EXT:
    case GL_STENCIL_INDEX4_EXT:
-   case GL_STENCIL_INDEX8_EXT:
    case GL_STENCIL_INDEX16_EXT:
+      /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
+       * OpenGL ES, but Mesa does not currently support them.
+       */
+      return _mesa_is_desktop_gl(ctx) ? GL_STENCIL_INDEX : 0;
+   case GL_STENCIL_INDEX8_EXT:
       return GL_STENCIL_INDEX;
    case GL_DEPTH_COMPONENT:
+   case GL_DEPTH_COMPONENT32:
+      return _mesa_is_desktop_gl(ctx) ? GL_DEPTH_COMPONENT : 0;
    case GL_DEPTH_COMPONENT16:
    case GL_DEPTH_COMPONENT24:
-   case GL_DEPTH_COMPONENT32:
       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:
-      if (ctx->Extensions.EXT_packed_depth_stencil)
-         return GL_DEPTH_STENCIL_EXT;
-      else
-         return 0;
+      return ctx->Extensions.EXT_packed_depth_stencil
+         ? GL_DEPTH_STENCIL_EXT : 0;
    case GL_DEPTH_COMPONENT32F:
-      if (ctx->Extensions.ARB_depth_buffer_float)
-         return GL_DEPTH_COMPONENT;
-      else
-         return 0;
+      return ctx->Version >= 30
+         || (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_buffer_float)
+         ? GL_DEPTH_COMPONENT : 0;
    case GL_DEPTH32F_STENCIL8:
-      if (ctx->Extensions.ARB_depth_buffer_float)
-         return GL_DEPTH_STENCIL;
-      else
-         return 0;
+      return ctx->Version >= 30
+         || (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_buffer_float)
+         ? GL_DEPTH_STENCIL : 0;
    case GL_RED:
-   case GL_R8:
    case GL_R16:
-      return ctx->Extensions.ARB_texture_rg ? GL_RED : 0;
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_rg
+         ? GL_RED : 0;
+   case GL_R8:
+      return ctx->API != API_OPENGLES && ctx->Extensions.ARB_texture_rg
+         ? GL_RED : 0;
    case GL_RG:
-   case GL_RG8:
    case GL_RG16:
-      return ctx->Extensions.ARB_texture_rg ? GL_RG : 0;
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_rg
+         ? GL_RG : 0;
+   case GL_RG8:
+      return ctx->API != API_OPENGLES && ctx->Extensions.ARB_texture_rg
+         ? GL_RG : 0;
    /* signed normalized texture formats */
    case GL_RED_SNORM:
    case GL_R8_SNORM:
    case GL_R16_SNORM:
-      return ctx->Extensions.EXT_texture_snorm ? GL_RED : 0;
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
+         ? GL_RED : 0;
    case GL_RG_SNORM:
    case GL_RG8_SNORM:
    case GL_RG16_SNORM:
-      return ctx->Extensions.EXT_texture_snorm ? GL_RG : 0;
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
+         ? GL_RG : 0;
    case GL_RGB_SNORM:
    case GL_RGB8_SNORM:
    case GL_RGB16_SNORM:
-      return ctx->Extensions.EXT_texture_snorm ? GL_RGB : 0;
+      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
+         ? GL_RGB : 0;
    case GL_RGBA_SNORM:
    case GL_RGBA8_SNORM:
    case GL_RGBA16_SNORM:
-      return ctx->Extensions.EXT_texture_snorm ? GL_RGBA : 0;
+      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->Extensions.EXT_texture_snorm &&
+      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->Extensions.EXT_texture_snorm &&
-             ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
-   case GL_LUMINANCE_ALPHA_SNORM:
-   case GL_LUMINANCE8_ALPHA8_SNORM:
-   case GL_LUMINANCE16_ALPHA16_SNORM:
-      return ctx->Extensions.EXT_texture_snorm &&
-             ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
-   case GL_INTENSITY_SNORM:
-   case GL_INTENSITY8_SNORM:
-   case GL_INTENSITY16_SNORM:
-      return ctx->Extensions.EXT_texture_snorm &&
-             ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
    case GL_R16F:
    case GL_R32F:
-      return ctx->Extensions.ARB_texture_rg &&
-             ctx->Extensions.ARB_texture_float ? GL_RED : 0;
+      return ctx->Version >= 30
+         || (ctx->API == API_OPENGL_COMPAT &&
+             ctx->Extensions.ARB_texture_rg &&
+             ctx->Extensions.ARB_texture_float) ? GL_RED : 0;
    case GL_RG16F:
    case GL_RG32F:
-      return ctx->Extensions.ARB_texture_rg &&
-             ctx->Extensions.ARB_texture_float ? GL_RG : 0;
+      return ctx->Version >= 30
+         || (ctx->API == API_OPENGL_COMPAT &&
+             ctx->Extensions.ARB_texture_rg &&
+             ctx->Extensions.ARB_texture_float) ? GL_RG : 0;
    case GL_RGB16F:
    case GL_RGB32F:
-      return ctx->Extensions.ARB_texture_float ? GL_RGB : 0;
+      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 ctx->Extensions.ARB_texture_float ? GL_RGBA : 0;
+      return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_float)
+         || _mesa_is_gles3(ctx)
+         ? GL_RGBA : 0;
    case GL_ALPHA16F_ARB:
    case GL_ALPHA32F_ARB:
-      return ctx->Extensions.ARB_texture_float &&
+      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->Extensions.ARB_texture_float &&
+      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->Extensions.ARB_texture_float &&
+      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->Extensions.ARB_texture_float &&
+      return ctx->API == API_OPENGL_COMPAT &&
+             ctx->Extensions.ARB_texture_float &&
              ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
    case GL_RGB9_E5:
-      return ctx->Extensions.EXT_texture_shared_exponent ? GL_RGB : 0;
+      return (_mesa_is_desktop_gl(ctx)
+              && ctx->Extensions.EXT_texture_shared_exponent)
+         || _mesa_is_gles3(ctx) ? GL_RGB : 0;
    case GL_R11F_G11F_B10F:
-      return ctx->Extensions.EXT_packed_float ? GL_RGB : 0;
-   /* XXX add integer formats eventually */
+      return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_packed_float)
+         || _mesa_is_gles3(ctx) ? GL_RGB : 0;
+
+   case GL_RGBA8UI_EXT:
+   case GL_RGBA16UI_EXT:
+   case GL_RGBA32UI_EXT:
+   case GL_RGBA8I_EXT:
+   case GL_RGBA16I_EXT:
+   case GL_RGBA32I_EXT:
+      return ctx->Version >= 30
+         || (_mesa_is_desktop_gl(ctx) &&
+             ctx->Extensions.EXT_texture_integer) ? GL_RGBA : 0;
+
+   case GL_RGB8UI_EXT:
+   case GL_RGB16UI_EXT:
+   case GL_RGB32UI_EXT:
+   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;
+
+   case GL_R8UI:
+   case GL_R8I:
+   case GL_R16UI:
+   case GL_R16I:
+   case GL_R32UI:
+   case GL_R32I:
+      return ctx->Version >= 30
+         || (_mesa_is_desktop_gl(ctx) &&
+             ctx->Extensions.ARB_texture_rg &&
+             ctx->Extensions.EXT_texture_integer) ? GL_RED : 0;
+
+   case GL_RG8UI:
+   case GL_RG8I:
+   case GL_RG16UI:
+   case GL_RG16I:
+   case GL_RG32UI:
+   case GL_RG32I:
+      return ctx->Version >= 30
+         || (_mesa_is_desktop_gl(ctx) &&
+             ctx->Extensions.ARB_texture_rg &&
+             ctx->Extensions.EXT_texture_integer) ? GL_RG : 0;
+
+   case GL_INTENSITY8I_EXT:
+   case GL_INTENSITY8UI_EXT:
+   case GL_INTENSITY16I_EXT:
+   case GL_INTENSITY16UI_EXT:
+   case GL_INTENSITY32I_EXT:
+   case GL_INTENSITY32UI_EXT:
+      return ctx->API == API_OPENGL_COMPAT &&
+             ctx->Extensions.EXT_texture_integer &&
+             ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
+
+   case GL_LUMINANCE8I_EXT:
+   case GL_LUMINANCE8UI_EXT:
+   case GL_LUMINANCE16I_EXT:
+   case GL_LUMINANCE16UI_EXT:
+   case GL_LUMINANCE32I_EXT:
+   case GL_LUMINANCE32UI_EXT:
+      return ctx->API == API_OPENGL_COMPAT &&
+             ctx->Extensions.EXT_texture_integer &&
+             ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
+
+   case GL_LUMINANCE_ALPHA8I_EXT:
+   case GL_LUMINANCE_ALPHA8UI_EXT:
+   case GL_LUMINANCE_ALPHA16I_EXT:
+   case GL_LUMINANCE_ALPHA16UI_EXT:
+   case GL_LUMINANCE_ALPHA32I_EXT:
+   case GL_LUMINANCE_ALPHA32UI_EXT:
+      return ctx->API == API_OPENGL_COMPAT &&
+             ctx->Extensions.EXT_texture_integer &&
+             ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
+
+   case GL_ALPHA8I_EXT:
+   case GL_ALPHA8UI_EXT:
+   case GL_ALPHA16I_EXT:
+   case GL_ALPHA16UI_EXT:
+   case GL_ALPHA32I_EXT:
+   case GL_ALPHA32UI_EXT:
+      return ctx->API == API_OPENGL_COMPAT &&
+             ctx->Extensions.EXT_texture_integer &&
+             ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
+
+   case GL_RGB10_A2UI:
+      return (_mesa_is_desktop_gl(ctx) &&
+              ctx->Extensions.ARB_texture_rgb10_a2ui)
+         || _mesa_is_gles3(ctx) ? GL_RGBA : 0;
+
+   case GL_RGB565:
+      return _mesa_is_gles(ctx) || ctx->Extensions.ARB_ES2_compatibility
+         ? GL_RGB : 0;
    default:
       return 0;
    }
@@ -1237,7 +1351,7 @@ invalidate_rb(GLuint key, void *data, void *userData)
    struct gl_renderbuffer *rb = (struct gl_renderbuffer *) userData;
 
    /* If this is a user-created FBO */
-   if (is_user_fbo(fb)) {
+   if (_mesa_is_user_fbo(fb)) {
       GLuint i;
       for (i = 0; i < BUFFER_COUNT; i++) {
          struct gl_renderbuffer_attachment *att = fb->Attachment + i;
@@ -1257,9 +1371,9 @@ 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,
@@ -1284,12 +1398,12 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
       return;
    }
 
-   if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+   if (width < 0 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
       _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);
       return;
    }
 
-   if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+   if (height < 0 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
       _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);
       return;
    }
@@ -1314,7 +1428,8 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
 
    if (rb->InternalFormat == internalFormat &&
        rb->Width == (GLuint) width &&
-       rb->Height == (GLuint) height) {
+       rb->Height == (GLuint) height &&
+       rb->NumSamples == samples) {
       /* no change in allocation needed */
       return;
    }
@@ -1327,7 +1442,7 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
    ASSERT(rb->AllocStorage);
    if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {
       /* No error - check/set fields now */
-      assert(rb->Format != MESA_FORMAT_NONE);
+      /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
       assert(rb->Width == (GLuint) width);
       assert(rb->Height == (GLuint) height);
       rb->InternalFormat = internalFormat;
@@ -1351,7 +1466,6 @@ renderbuffer_storage(GLenum target, GLenum internalFormat,
 }
 
 
-#if FEATURE_OES_EGL_image
 void GLAPIENTRY
 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
 {
@@ -1382,12 +1496,11 @@ _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
 
    ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image);
 }
-#endif
 
 
 /**
- * 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
@@ -1396,54 +1509,16 @@ _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
 static GLint
 get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
 {
-   switch (pname) {
-   case GL_RENDERBUFFER_RED_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
-      if (baseFormat == GL_RGB || baseFormat == GL_RGBA ||
-         baseFormat == GL_RG || baseFormat == GL_RED)
-         return _mesa_get_format_bits(format, pname);
-      else
-         return 0;
-   case GL_RENDERBUFFER_GREEN_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
-      if (baseFormat == GL_RGB || baseFormat == GL_RGBA || baseFormat == GL_RG)
-         return _mesa_get_format_bits(format, pname);
-      else
-         return 0;
-   case GL_RENDERBUFFER_BLUE_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
-      if (baseFormat == GL_RGB || baseFormat == GL_RGBA)
-         return _mesa_get_format_bits(format, pname);
-      else
-         return 0;
-   case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
-      if (baseFormat == GL_RGBA || baseFormat == GL_ALPHA ||
-         baseFormat == GL_LUMINANCE_ALPHA)
-         return _mesa_get_format_bits(format, pname);
-      else
-         return 0;
-   case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
-      if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL)
-         return _mesa_get_format_bits(format, pname);
-      else
-         return 0;
-   case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
-   case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
-      if (baseFormat == GL_STENCIL_INDEX || baseFormat == GL_DEPTH_STENCIL)
-         return _mesa_get_format_bits(format, pname);
-      else
-         return 0;
-   default:
+   if (_mesa_base_format_has_channel(baseFormat, pname))
+      return _mesa_get_format_bits(format, pname);
+   else
       return 0;
-   }
 }
 
 
 
 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
@@ -1485,7 +1560,7 @@ _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);
@@ -1528,7 +1603,8 @@ _mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
       *params = get_component_bits(pname, rb->_BaseFormat, rb->Format);
       break;
    case GL_RENDERBUFFER_SAMPLES:
-      if (ctx->Extensions.ARB_framebuffer_object) {
+      if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_framebuffer_object)
+          || _mesa_is_gles3(ctx)) {
          *params = rb->NumSamples;
          break;
       }
@@ -1542,7 +1618,7 @@ _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);
@@ -1566,7 +1642,7 @@ check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
    GLuint i;
    ASSERT(ctx->Driver.RenderTexture);
 
-   if (is_winsys_fbo(fb))
+   if (_mesa_is_winsys_fbo(fb))
       return; /* can't render to texture with winsys framebuffers */
 
    for (i = 0; i < BUFFER_COUNT; i++) {
@@ -1586,7 +1662,7 @@ check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
 static void
 check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
 {
-   if (is_winsys_fbo(fb))
+   if (_mesa_is_winsys_fbo(fb))
       return; /* can't render to texture with winsys framebuffers */
 
    if (ctx->Driver.FinishRenderTexture) {
@@ -1602,7 +1678,7 @@ check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
 
 
 void GLAPIENTRY
-_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
+_mesa_BindFramebuffer(GLenum target, GLuint framebuffer)
 {
    struct gl_framebuffer *newDrawFb, *newReadFb;
    struct gl_framebuffer *oldDrawFb, *oldReadFb;
@@ -1625,7 +1701,6 @@ _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
    }
 
    switch (target) {
-#if FEATURE_EXT_framebuffer_blit
    case GL_DRAW_FRAMEBUFFER_EXT:
       if (!ctx->Extensions.EXT_framebuffer_blit) {
          _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
@@ -1642,7 +1717,6 @@ _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
       bindDrawBuf = GL_FALSE;
       bindReadBuf = GL_TRUE;
       break;
-#endif
    case GL_FRAMEBUFFER_EXT:
       bindDrawBuf = GL_TRUE;
       bindReadBuf = GL_TRUE;
@@ -1659,7 +1733,9 @@ _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
+               && _mesa_is_desktop_gl(ctx)
+               && ctx->Extensions.ARB_framebuffer_object) {
          /* All FBO IDs must be Gen'd */
          _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
          return;
@@ -1721,11 +1797,8 @@ _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
    if (bindDrawBuf) {
       FLUSH_VERTICES(ctx, _NEW_BUFFERS);
 
-      /* check if old read/draw buffers were render-to-texture */
-      if (!bindReadBuf)
-         check_end_texture_render(ctx, oldReadFb);
-
-      if (oldDrawFb != oldReadFb)
+      /* check if old framebuffer had any texture attachments */
+      if (oldDrawFb)
          check_end_texture_render(ctx, oldDrawFb);
 
       /* check if newly bound framebuffer has any texture attachments */
@@ -1741,7 +1814,7 @@ _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
 
 
 void GLAPIENTRY
-_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
+_mesa_DeleteFramebuffers(GLsizei n, const GLuint *framebuffers)
 {
    GLint i;
    GET_CURRENT_CONTEXT(ctx);
@@ -1762,12 +1835,12 @@ _mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
                if (fb == ctx->DrawBuffer) {
                   /* bind default */
                   ASSERT(fb->RefCount >= 2);
-                  _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
+                  _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, 0);
                }
                if (fb == ctx->ReadBuffer) {
                   /* bind default */
                   ASSERT(fb->RefCount >= 2);
-                  _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
+                  _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER_EXT, 0);
                }
             }
             else {
@@ -1775,8 +1848,8 @@ _mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
                if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {
                   /* bind default */
                   ASSERT(fb->RefCount >= 2);
-                  _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
-               }    
+                  _mesa_BindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
+               }
             }
 
            /* remove from hash table immediately, to free the ID */
@@ -1795,7 +1868,7 @@ _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;
@@ -1826,7 +1899,7 @@ _mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)
 
 
 GLenum GLAPIENTRY
-_mesa_CheckFramebufferStatusEXT(GLenum target)
+_mesa_CheckFramebufferStatus(GLenum target)
 {
    struct gl_framebuffer *buffer;
    GET_CURRENT_CONTEXT(ctx);
@@ -1839,7 +1912,7 @@ _mesa_CheckFramebufferStatusEXT(GLenum target)
       return 0;
    }
 
-   if (is_winsys_fbo(buffer)) {
+   if (_mesa_is_winsys_fbo(buffer)) {
       /* The window system / default framebuffer is always complete */
       return GL_FRAMEBUFFER_COMPLETE_EXT;
    }
@@ -1854,9 +1927,36 @@ _mesa_CheckFramebufferStatusEXT(GLenum target)
 }
 
 
+/**
+ * Replicate the src attachment point. Used by framebuffer_texture() when
+ * the same texture is attached at GL_DEPTH_ATTACHMENT and
+ * GL_STENCIL_ATTACHMENT.
+ */
+static void
+reuse_framebuffer_texture_attachment(struct gl_framebuffer *fb,
+                                     gl_buffer_index dst,
+                                     gl_buffer_index src)
+{
+   struct gl_renderbuffer_attachment *dst_att = &fb->Attachment[dst];
+   struct gl_renderbuffer_attachment *src_att = &fb->Attachment[src];
+
+   assert(src_att->Texture != NULL);
+   assert(src_att->Renderbuffer != NULL);
+
+   _mesa_reference_texobj(&dst_att->Texture, src_att->Texture);
+   _mesa_reference_renderbuffer(&dst_att->Renderbuffer, src_att->Renderbuffer);
+   dst_att->Type = src_att->Type;
+   dst_att->Complete = src_att->Complete;
+   dst_att->TextureLevel = src_att->TextureLevel;
+   dst_att->Zoffset = src_att->Zoffset;
+}
+
 
 /**
- * Common code called by glFramebufferTexture1D/2D/3DEXT().
+ * Common code called by glFramebufferTexture1D/2D/3DEXT() and
+ * glFramebufferTextureLayerEXT().
+ * Note: glFramebufferTextureLayerEXT() has no textarget parameter so we'll
+ * get textarget=0 in that case.
  */
 static void
 framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target, 
@@ -1866,6 +1966,7 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
    struct gl_renderbuffer_attachment *att;
    struct gl_texture_object *texObj = NULL;
    struct gl_framebuffer *fb;
+   GLenum maxLevelsTarget;
 
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
@@ -1877,13 +1978,12 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
    }
 
    /* check framebuffer binding */
-   if (is_winsys_fbo(fb)) {
+   if (_mesa_is_winsys_fbo(fb)) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
                   "glFramebufferTexture%sEXT", caller);
       return;
    }
 
-
    /* The textarget, level, and zoffset parameters are only validated if
     * texture is non-zero.
     */
@@ -1893,14 +1993,20 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
       texObj = _mesa_lookup_texture(ctx, texture);
       if (texObj != NULL) {
          if (textarget == 0) {
-            /* XXX what's the purpose of this? */
+            /* 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);
+                (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT) &&
+                (texObj->Target != GL_TEXTURE_CUBE_MAP_ARRAY);
          }
          else {
+            /* Make sure textarget is consistent with the texture's type */
             err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
-                ? !is_cube_face(textarget)
+                ? !_mesa_is_cube_face(textarget)
                 : (texObj->Target != textarget);
          }
       }
@@ -1928,16 +2034,19 @@ 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)) {
+         if (zoffset < 0 ||
+             zoffset >= (GLint) ctx->Const.MaxArrayTextureLayers) {
             _mesa_error(ctx, GL_INVALID_VALUE,
                         "glFramebufferTexture%sEXT(layer)", caller);
             return;
          }
       }
 
-      if ((level < 0) || 
-          (level >= _mesa_max_texture_levels(ctx, texObj->Target))) {
+      maxLevelsTarget = textarget ? textarget : texObj->Target;
+      if ((level < 0) ||
+          (level >= _mesa_max_texture_levels(ctx, maxLevelsTarget))) {
          _mesa_error(ctx, GL_INVALID_VALUE,
                      "glFramebufferTexture%sEXT(level)", caller);
          return;
@@ -1955,8 +2064,42 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
 
    _glthread_LOCK_MUTEX(fb->Mutex);
    if (texObj) {
-      _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
-                                   level, zoffset);
+      if (attachment == GL_DEPTH_ATTACHMENT &&
+          texObj == fb->Attachment[BUFFER_STENCIL].Texture &&
+          level == fb->Attachment[BUFFER_STENCIL].TextureLevel &&
+          _mesa_tex_target_to_face(textarget) ==
+          fb->Attachment[BUFFER_STENCIL].CubeMapFace &&
+          zoffset == fb->Attachment[BUFFER_STENCIL].Zoffset) {
+        /* The texture object is already attached to the stencil attachment
+         * point. Don't create a new renderbuffer; just reuse the stencil
+         * attachment's. This is required to prevent a GL error in
+         * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
+         */
+        reuse_framebuffer_texture_attachment(fb, BUFFER_DEPTH,
+                                             BUFFER_STENCIL);
+      } else if (attachment == GL_STENCIL_ATTACHMENT &&
+                texObj == fb->Attachment[BUFFER_DEPTH].Texture &&
+                 level == fb->Attachment[BUFFER_DEPTH].TextureLevel &&
+                 _mesa_tex_target_to_face(textarget) ==
+                 fb->Attachment[BUFFER_DEPTH].CubeMapFace &&
+                 zoffset == fb->Attachment[BUFFER_DEPTH].Zoffset) {
+        /* As above, but with depth and stencil transposed. */
+        reuse_framebuffer_texture_attachment(fb, BUFFER_STENCIL,
+                                             BUFFER_DEPTH);
+      } else {
+        _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
+                                     level, zoffset);
+        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
+            * point too.
+            */
+           assert(att == &fb->Attachment[BUFFER_DEPTH]);
+           reuse_framebuffer_texture_attachment(fb,BUFFER_STENCIL,
+                                                BUFFER_DEPTH);
+        }
+      }
+
       /* Set the render-to-texture flag.  We'll check this flag in
        * glTexImage() and friends to determine if we need to revalidate
        * any FBOs that might be rendering into this texture.
@@ -1969,6 +2112,10 @@ framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
    }
    else {
       _mesa_remove_attachment(ctx, att);
+      if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+        assert(att == &fb->Attachment[BUFFER_DEPTH]);
+        _mesa_remove_attachment(ctx, &fb->Attachment[BUFFER_STENCIL]);
+      }
    }
 
    invalidate_framebuffer(fb);
@@ -1979,15 +2126,31 @@ 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);
 
-   if ((texture != 0) && (textarget != GL_TEXTURE_1D)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glFramebufferTexture1DEXT(textarget)");
-      return;
+   if (texture != 0) {
+      GLboolean error;
+
+      switch (textarget) {
+      case GL_TEXTURE_1D:
+         error = GL_FALSE;
+         break;
+      case GL_TEXTURE_1D_ARRAY:
+         error = !ctx->Extensions.EXT_texture_array;
+         break;
+      default:
+         error = GL_TRUE;
+      }
+
+      if (error) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glFramebufferTexture1DEXT(textarget=%s)",
+                     _mesa_lookup_enum_by_nr(textarget));
+         return;
+      }
    }
 
    framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
@@ -1996,18 +2159,44 @@ _mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
 
 
 void GLAPIENTRY
-_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferTexture2D(GLenum target, GLenum attachment,
                               GLenum textarget, GLuint texture, GLint level)
 {
    GET_CURRENT_CONTEXT(ctx);
 
-   if ((texture != 0) &&
-       (textarget != GL_TEXTURE_2D) &&
-       (textarget != GL_TEXTURE_RECTANGLE_ARB) &&
-       (!is_cube_face(textarget))) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glFramebufferTexture2DEXT(textarget=0x%x)", textarget);
-      return;
+   if (texture != 0) {
+      GLboolean error;
+
+      switch (textarget) {
+      case GL_TEXTURE_2D:
+         error = GL_FALSE;
+         break;
+      case GL_TEXTURE_RECTANGLE:
+         error = _mesa_is_gles(ctx)
+            || !ctx->Extensions.NV_texture_rectangle;
+         break;
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+         error = !ctx->Extensions.ARB_texture_cube_map;
+         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_OPERATION,
+                     "glFramebufferTexture2DEXT(textarget=%s)",
+                     _mesa_lookup_enum_by_nr(textarget));
+         return;
+      }
    }
 
    framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
@@ -2016,14 +2205,14 @@ _mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
 
 
 void GLAPIENTRY
-_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferTexture3D(GLenum target, GLenum attachment,
                               GLenum textarget, GLuint texture,
                               GLint level, GLint zoffset)
 {
    GET_CURRENT_CONTEXT(ctx);
 
    if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
+      _mesa_error(ctx, GL_INVALID_OPERATION,
                   "glFramebufferTexture3DEXT(textarget)");
       return;
    }
@@ -2034,7 +2223,7 @@ _mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
 
 
 void GLAPIENTRY
-_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferTextureLayer(GLenum target, GLenum attachment,
                                  GLuint texture, GLint level, GLint layer)
 {
    GET_CURRENT_CONTEXT(ctx);
@@ -2045,7 +2234,7 @@ _mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
 
 
 void GLAPIENTRY
-_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
+_mesa_FramebufferRenderbuffer(GLenum target, GLenum attachment,
                                  GLenum renderbufferTarget,
                                  GLuint renderbuffer)
 {
@@ -2068,7 +2257,7 @@ _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
       return;
    }
 
-   if (is_winsys_fbo(fb)) {
+   if (_mesa_is_winsys_fbo(fb)) {
       /* Can't attach new renderbuffers to a window system framebuffer */
       _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
       return;
@@ -2129,15 +2318,19 @@ _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;
    struct gl_framebuffer *buffer;
+   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;
+
    buffer = get_framebuffer_target(ctx, target);
    if (!buffer) {
       _mesa_error(ctx, GL_INVALID_ENUM,
@@ -2145,7 +2338,22 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
       return;
    }
 
-   if (is_winsys_fbo(buffer)) {
+   if (_mesa_is_winsys_fbo(buffer)) {
+      /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
+       * says:
+       *
+       *     "If the framebuffer currently bound to target is zero, then
+       *     INVALID_OPERATION is generated."
+       *
+       * The EXT_framebuffer_object spec has the same wording, and the
+       * OES_framebuffer_object spec refers to the EXT_framebuffer_object
+       * spec.
+       */
+      if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object) {
+        _mesa_error(ctx, GL_INVALID_OPERATION,
+                    "glGetFramebufferAttachmentParameteriv(bound FBO = 0)");
+        return;
+      }
       /* the default / window-system FBO */
       att = _mesa_get_fb0_attachment(ctx, buffer, attachment);
    }
@@ -2177,7 +2385,8 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
 
    switch (pname) {
    case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
-      *params = is_winsys_fbo(buffer) ? GL_FRAMEBUFFER_DEFAULT : att->Type;
+      *params = _mesa_is_winsys_fbo(buffer)
+         ? GL_FRAMEBUFFER_DEFAULT : att->Type;
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
       if (att->Type == GL_RENDERBUFFER_EXT) {
@@ -2188,7 +2397,11 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
       }
       else {
          assert(att->Type == GL_NONE);
-         *params = 0;
+         if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
+            *params = 0;
+         } else {
+            goto invalid_pname_enum;
+         }
       }
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
@@ -2196,12 +2409,11 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
         *params = att->TextureLevel;
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
+         _mesa_error(ctx, err,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else {
-        _mesa_error(ctx, GL_INVALID_ENUM,
-                    "glGetFramebufferAttachmentParameterivEXT(pname)");
+         goto invalid_pname_enum;
       }
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:
@@ -2214,16 +2426,20 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
          }
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
+         _mesa_error(ctx, err,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else {
-        _mesa_error(ctx, GL_INVALID_ENUM,
-                    "glGetFramebufferAttachmentParameterivEXT(pname)");
+         goto invalid_pname_enum;
       }
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:
-      if (att->Type == GL_TEXTURE) {
+      if (ctx->API == API_OPENGLES) {
+         goto invalid_pname_enum;
+      } else if (att->Type == GL_NONE) {
+         _mesa_error(ctx, err,
+                     "glGetFramebufferAttachmentParameterivEXT(pname)");
+      } else if (att->Type == GL_TEXTURE) {
          if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {
             *params = att->Zoffset;
          }
@@ -2231,26 +2447,21 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
             *params = 0;
          }
       }
-      else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glGetFramebufferAttachmentParameterivEXT(pname)");
-      }
       else {
-        _mesa_error(ctx, GL_INVALID_ENUM,
-                    "glGetFramebufferAttachmentParameterivEXT(pname)");
+         goto invalid_pname_enum;
       }
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
-      if (!ctx->Extensions.ARB_framebuffer_object) {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glGetFramebufferAttachmentParameterivEXT(pname)");
+      if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object)
+          && !_mesa_is_gles3(ctx)) {
+         goto invalid_pname_enum;
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
+         _mesa_error(ctx, err,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else {
-         if (ctx->Extensions.EXT_framebuffer_sRGB && ctx->Const.sRGBCapable) {
+         if (ctx->Extensions.EXT_framebuffer_sRGB) {
             *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format);
          }
          else {
@@ -2261,18 +2472,18 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
       }
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
-      if (!ctx->Extensions.ARB_framebuffer_object) {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glGetFramebufferAttachmentParameterivEXT(pname)");
-         return;
+      if ((ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_framebuffer_object)
+          && ctx->API != API_OPENGL_CORE
+          && !_mesa_is_gles3(ctx)) {
+         goto invalid_pname_enum;
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
+         _mesa_error(ctx, err,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else {
          gl_format format = att->Renderbuffer->Format;
-         if (format == MESA_FORMAT_CI8 || format == MESA_FORMAT_S8) {
+         if (format == MESA_FORMAT_S8) {
             /* special cases */
             *params = GL_INDEX;
          }
@@ -2296,12 +2507,12 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
    case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
    case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
    case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
-      if (!ctx->Extensions.ARB_framebuffer_object) {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glGetFramebufferAttachmentParameterivEXT(pname)");
+      if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object)
+          && !_mesa_is_gles3(ctx)) {
+         goto invalid_pname_enum;
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
+         _mesa_error(ctx, err,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else if (att->Texture) {
@@ -2326,17 +2537,25 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
       }
       return;
    default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetFramebufferAttachmentParameterivEXT(pname)");
-      return;
+      goto invalid_pname_enum;
    }
+
+   return;
+
+invalid_pname_enum:
+   _mesa_error(ctx, GL_INVALID_ENUM,
+               "glGetFramebufferAttachmentParameteriv(pname)");
+   return;
 }
 
 
 void GLAPIENTRY
-_mesa_GenerateMipmapEXT(GLenum target)
+_mesa_GenerateMipmap(GLenum target)
 {
+   struct gl_texture_image *srcImage;
    struct gl_texture_object *texObj;
+   GLboolean error;
+
    GET_CURRENT_CONTEXT(ctx);
 
    ASSERT_OUTSIDE_BEGIN_END(ctx);
@@ -2344,14 +2563,31 @@ _mesa_GenerateMipmapEXT(GLenum target)
 
    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:
-      /* OK, legal value */
+      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:
-      /* XXX need to implement GL_TEXTURE_1D_ARRAY and GL_TEXTURE_2D_ARRAY */
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)");
+      error = GL_TRUE;
+   }
+
+   if (error) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target=%s)",
+                  _mesa_lookup_enum_by_nr(target));
       return;
    }
 
@@ -2370,6 +2606,24 @@ _mesa_GenerateMipmapEXT(GLenum target)
    }
 
    _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 (_mesa_is_enum_format_integer(srcImage->InternalFormat) ||
+       _mesa_is_depthstencil_format(srcImage->InternalFormat) ||
+       _mesa_is_stencil_format(srcImage->InternalFormat)) {
+      _mesa_unlock_texture(ctx, texObj);
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glGenerateMipmap(invalid internal format)");
+      return;
+   }
+
    if (target == GL_TEXTURE_CUBE_MAP) {
       GLuint face;
       for (face = 0; face < 6; face++)
@@ -2384,8 +2638,6 @@ _mesa_GenerateMipmapEXT(GLenum target)
 }
 
 
-#if FEATURE_EXT_framebuffer_blit
-
 static const struct gl_renderbuffer_attachment *
 find_attachment(const struct gl_framebuffer *fb,
                 const struct gl_renderbuffer *rb)
@@ -2399,6 +2651,80 @@ find_attachment(const struct gl_framebuffer *fb,
 }
 
 
+/**
+ * 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;
+}
+
+
+static GLboolean
+compatible_resolve_formats(const struct gl_renderbuffer *readRb,
+                           const struct gl_renderbuffer *drawRb)
+{
+   GLenum readFormat, drawFormat;
+
+   /* The simple case where we know the backing Mesa formats are the same.
+    */
+   if (_mesa_get_srgb_format_linear(readRb->Format) ==
+       _mesa_get_srgb_format_linear(drawRb->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.
+    *
+    * Blits between linear and sRGB formats are also allowed.
+    */
+   readFormat = _mesa_get_nongeneric_internalformat(readRb->InternalFormat);
+   drawFormat = _mesa_get_nongeneric_internalformat(drawRb->InternalFormat);
+   readFormat = _mesa_get_linear_internalformat(readFormat);
+   drawFormat = _mesa_get_linear_internalformat(drawFormat);
+
+   if (readFormat == drawFormat) {
+      return GL_TRUE;
+   }
+
+   return GL_FALSE;
+}
+
 
 /**
  * Blit rectangular region, optionally from one framebuffer to another.
@@ -2407,7 +2733,7 @@ find_attachment(const struct gl_framebuffer *fb,
  * when the samples must be resolved to a single color.
  */
 void GLAPIENTRY
-_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+_mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
                          GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
                          GLbitfield mask, GLenum filter)
 {
@@ -2483,14 +2809,22 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
         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->_StencilBuffer;
-      struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer;
+      struct gl_renderbuffer *readRb =
+         readFb->Attachment[BUFFER_STENCIL].Renderbuffer;
+      struct gl_renderbuffer *drawRb =
+         drawFb->Attachment[BUFFER_STENCIL].Renderbuffer;
 
       /* From the EXT_framebuffer_object spec:
        *
@@ -2499,11 +2833,13 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
        *     ignored."
        */
       if ((readRb == NULL) || (drawRb == NULL)) {
-        readRb = 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;
@@ -2511,8 +2847,10 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
    }
 
    if (mask & GL_DEPTH_BUFFER_BIT) {
-      struct gl_renderbuffer *readRb = readFb->_DepthBuffer;
-      struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer;
+      struct gl_renderbuffer *readRb =
+         readFb->Attachment[BUFFER_DEPTH].Renderbuffer;
+      struct gl_renderbuffer *drawRb =
+         drawFb->Attachment[BUFFER_DEPTH].Renderbuffer;
 
       /* From the EXT_framebuffer_object spec:
        *
@@ -2521,13 +2859,14 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
        *     ignored."
        */
       if ((readRb == NULL) || (drawRb == NULL)) {
-        readRb = 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)) {
+      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 size mismatch)");
+                     "glBlitFramebufferEXT(depth buffer format mismatch)");
          return;
       }
    }
@@ -2536,15 +2875,15 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
        drawFb->Visual.samples > 0 &&
        readFb->Visual.samples != drawFb->Visual.samples) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glBlitFramebufferEXT(mismatched samples");
+                  "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 (srcX1 - srcX0 != dstX1 - dstX0 ||
-          srcY1 - srcY0 != dstY1 - dstY0) {
+      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;
@@ -2553,13 +2892,26 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
       /* color formats must match */
       if (colorReadRb &&
           colorDrawRb &&
-          colorReadRb->Format != colorDrawRb->Format) {
+          !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;
@@ -2613,26 +2965,145 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
                                dstX0, dstY0, dstX1, dstY1,
                                mask, filter);
 }
-#endif /* FEATURE_EXT_framebuffer_blit */
 
-#if FEATURE_ARB_geometry_shader4
-void GLAPIENTRY
-_mesa_FramebufferTextureARB(GLenum target, GLenum attachment,
-                            GLuint texture, GLint level)
+
+static void
+invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
+                               const GLenum *attachments, GLint x, GLint y,
+                               GLsizei width, GLsizei height, const char *name)
 {
+   int i;
+   struct gl_framebuffer *fb;
    GET_CURRENT_CONTEXT(ctx);
-   _mesa_error(ctx, GL_INVALID_OPERATION,
-               "glFramebufferTextureARB "
-               "not implemented!");
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   fb = get_framebuffer_target(ctx, target);
+   if (!fb) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", name);
+      return;
+   }
+
+   if (numAttachments < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE,
+                  "%s(numAttachments < 0)", name);
+      return;
+   }
+
+   /* The GL_ARB_invalidate_subdata spec says:
+    *
+    *     "If an attachment is specified that does not exist in the
+    *     framebuffer bound to <target>, it is ignored."
+    *
+    * It also says:
+    *
+    *     "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
+    *     or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
+    *     INVALID_OPERATION is generated."
+    *
+    * No mention is made of GL_AUXi being out of range.  Therefore, we allow
+    * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
+    * set of retrictions).
+    */
+   for (i = 0; i < numAttachments; i++) {
+      if (_mesa_is_winsys_fbo(fb)) {
+         switch (attachments[i]) {
+         case GL_ACCUM:
+         case GL_AUX0:
+         case GL_AUX1:
+         case GL_AUX2:
+         case GL_AUX3:
+            /* Accumulation buffers and auxilary buffers were removed in
+             * OpenGL 3.1, and they never existed in OpenGL ES.
+             */
+            if (ctx->API != API_OPENGL_COMPAT)
+               goto invalid_enum;
+            break;
+         case GL_COLOR:
+         case GL_DEPTH:
+         case GL_STENCIL:
+            break;
+         case GL_BACK_LEFT:
+         case GL_BACK_RIGHT:
+         case GL_FRONT_LEFT:
+         case GL_FRONT_RIGHT:
+            if (!_mesa_is_desktop_gl(ctx))
+               goto invalid_enum;
+            break;
+         default:
+            goto invalid_enum;
+         }
+      } else {
+         switch (attachments[i]) {
+         case GL_DEPTH_ATTACHMENT:
+         case GL_STENCIL_ATTACHMENT:
+            break;
+         case GL_COLOR_ATTACHMENT0:
+         case GL_COLOR_ATTACHMENT1:
+         case GL_COLOR_ATTACHMENT2:
+         case GL_COLOR_ATTACHMENT3:
+         case GL_COLOR_ATTACHMENT4:
+         case GL_COLOR_ATTACHMENT5:
+         case GL_COLOR_ATTACHMENT6:
+         case GL_COLOR_ATTACHMENT7:
+         case GL_COLOR_ATTACHMENT8:
+         case GL_COLOR_ATTACHMENT9:
+         case GL_COLOR_ATTACHMENT10:
+         case GL_COLOR_ATTACHMENT11:
+         case GL_COLOR_ATTACHMENT12:
+         case GL_COLOR_ATTACHMENT13:
+         case GL_COLOR_ATTACHMENT14:
+         case GL_COLOR_ATTACHMENT15: {
+            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;
+            }
+         }
+         default:
+            goto invalid_enum;
+         }
+      }
+   }
+
+   /* We don't actually do anything for this yet.  Just return after
+    * validating the parameters and generating the required errors.
+    */
+   return;
+
+invalid_enum:
+   _mesa_error(ctx, GL_INVALID_ENUM, "%s(attachment)", name);
+   return;
 }
 
 void GLAPIENTRY
-_mesa_FramebufferTextureFaceARB(GLenum target, GLenum attachment,
-                                GLuint texture, GLint level, GLenum face)
+_mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
+                               const GLenum *attachments, GLint x, GLint y,
+                               GLsizei width, GLsizei height)
 {
-   GET_CURRENT_CONTEXT(ctx);
-   _mesa_error(ctx, GL_INVALID_OPERATION,
-               "glFramebufferTextureFaceARB "
-               "not implemented!");
+   invalidate_framebuffer_storage(target, numAttachments, attachments,
+                                  x, y, width, height,
+                                  "glInvalidateSubFramebuffer");
+}
+
+void GLAPIENTRY
+_mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
+                            const GLenum *attachments)
+{
+   /* The GL_ARB_invalidate_subdata spec says:
+    *
+    *     "The command
+    *
+    *        void InvalidateFramebuffer(enum target,
+    *                                   sizei numAttachments,
+    *                                   const enum *attachments);
+    *
+    *     is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
+    *     <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
+    *     <MAX_VIEWPORT_DIMS[1]> respectively."
+    */
+   invalidate_framebuffer_storage(target, numAttachments, attachments,
+                                  0, 0, MAX_VIEWPORT_WIDTH, MAX_VIEWPORT_HEIGHT,
+                                  "glInvalidateFramebuffer");
 }
-#endif /* FEATURE_ARB_geometry_shader4 */