static void framebuffer_texture	(	GLcontext *	ctx,
		const char *	caller,
		GLenum	target,
		GLenum	attachment,
		GLenum	textarget,
		GLuint	texture,
		GLint	level,
		GLint	zoffset
	)		`[static]`

Common code called by glFramebufferTexture1D/2D/3DEXT().

Definition at line 1171 of file fbobject.c.

Referenced by _mesa_FramebufferTexture1DEXT(), _mesa_FramebufferTexture2DEXT(), _mesa_FramebufferTexture3DEXT(), and _mesa_FramebufferTextureLayerEXT().

{
   struct gl_renderbuffer_attachment *att;
   struct gl_texture_object *texObj = NULL;
   struct gl_framebuffer *fb;

   ASSERT_OUTSIDE_BEGIN_END(ctx);

   if (target != GL_FRAMEBUFFER_EXT) {
      _mesa_error(ctx, GL_INVALID_ENUM,
                  "glFramebufferTexture%sEXT(target)", caller);
      return;
   }

   fb = ctx->DrawBuffer;
   ASSERT(fb);

   /* check framebuffer binding */
   if (fb->Name == 0) {
      _mesa_error(ctx, GL_INVALID_OPERATION,
                  "glFramebufferTexture%sEXT", caller);
      return;
   }


   /* The textarget, level, and zoffset parameters are only validated if
    * texture is non-zero.
    */
   if (texture) {
      GLboolean err = GL_TRUE;

      texObj = _mesa_lookup_texture(ctx, texture);
      if (texObj != NULL) {
         if (textarget == 0) {
            err = (texObj->Target != GL_TEXTURE_3D) &&
                (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
                (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
         }
         else {
            err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
                ? !IS_CUBE_FACE(textarget)
                : (texObj->Target != textarget);
         }
      }

      if (err) {
         _mesa_error(ctx, GL_INVALID_OPERATION,
                     "glFramebufferTexture%sEXT(texture target mismatch)",
                     caller);
         return;
      }

      if (texObj->Target == GL_TEXTURE_3D) {
         const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
         if (zoffset < 0 || zoffset >= maxSize) {
            _mesa_error(ctx, GL_INVALID_VALUE,
                        "glFramebufferTexture%sEXT(zoffset)", caller);
            return;
         }
      }
      else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
               (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
         if (zoffset < 0 || zoffset >= 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))) {
         _mesa_error(ctx, GL_INVALID_VALUE,
                     "glFramebufferTexture%sEXT(level)", caller);
         return;
      }
   }

   att = _mesa_get_attachment(ctx, fb, attachment);
   if (att == NULL) {
      _mesa_error(ctx, GL_INVALID_ENUM,
                  "glFramebufferTexture%sEXT(attachment)", caller);
      return;
   }

   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
   /* The above doesn't fully flush the drivers in the way that a
    * glFlush does, but that is required here:
    */
   if (ctx->Driver.Flush)
      ctx->Driver.Flush(ctx);

   _glthread_LOCK_MUTEX(fb->Mutex);
   if (texObj) {
      _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
                                   level, zoffset);
   }
   else {
      _mesa_remove_attachment(ctx, att);
   }
   _glthread_UNLOCK_MUTEX(fb->Mutex);
}

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