Merge remote branch 'origin/7.8' into 7.8-gles

src/egl/drivers/dri2/egl_dri2.c

@@ -1380,6 +1380,7 @@ _eglMain(const char *args)
    if (!dri2_drv)
       return NULL;
 
+   memset(dri2_drv, 0, sizeof *dri2_drv);
    _eglInitDriverFallbacks(&dri2_drv->base);
    dri2_drv->base.API.Initialize = dri2_initialize;
    dri2_drv->base.API.Terminate = dri2_terminate;

src/glx/glxcmds.c

@@ -1766,6 +1766,15 @@ static int __glXQueryContextInfo(Display * dpy, GLXContext ctx)
 	 unsigned i;
 
          _XRead(dpy, (char *) propList, nPropListBytes);
+
+	 /* Look up screen first so we can look up visuals/fbconfigs later */
+         pProp = propList;
+         for (i = 0; i < numValues; i++, pProp += 2)
+	     if (pProp[0] == GLX_SCREEN) {
+		 ctx->screen = pProp[1];
+		 ctx->psc = GetGLXScreenConfigs(dpy, ctx->screen);
+	     }
+
          pProp = propList;
          for (i = 0; i < numValues; i++) {
             switch (*pProp++) {
@@ -1776,9 +1785,6 @@ static int __glXQueryContextInfo(Display * dpy, GLXContext ctx)
                ctx->mode =
                   _gl_context_modes_find_visual(ctx->psc->visuals, *pProp++);
                break;
-            case GLX_SCREEN:
-               ctx->screen = *pProp++;
-               break;
             case GLX_FBCONFIG_ID:
                ctx->mode =
                   _gl_context_modes_find_fbconfig(ctx->psc->configs,
@@ -1787,6 +1793,7 @@ static int __glXQueryContextInfo(Display * dpy, GLXContext ctx)
             case GLX_RENDER_TYPE:
                ctx->renderType = *pProp++;
                break;
+            case GLX_SCREEN:
             default:
                pProp++;
                continue;

src/mesa/drivers/osmesa/osmesa.c

@@ -1004,7 +1004,20 @@ new_osmesa_renderbuffer(GLcontext *ctx, GLenum format, GLenum type)
       rb->AllocStorage = osmesa_renderbuffer_storage;
 
       rb->InternalFormat = GL_RGBA;
-      rb->Format = MESA_FORMAT_RGBA8888;
+      switch (type) {
+      case GL_UNSIGNED_BYTE:
+         rb->Format = MESA_FORMAT_RGBA8888;
+         break;
+      case GL_UNSIGNED_SHORT:
+         rb->Format = MESA_FORMAT_SIGNED_RGBA_16;
+         break;
+      case GL_FLOAT:
+         rb->Format = MESA_FORMAT_RGBA_FLOAT32;
+         break;
+      default:
+         assert(0 && "Unexpected type in new_osmesa_renderbuffer()");
+         rb->Format = MESA_FORMAT_RGBA8888;
+      }
       rb->_BaseFormat = GL_RGBA;
       rb->DataType = type;
    }
@@ -1167,11 +1180,9 @@ OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
          return NULL;
       }
 
-      /* create front color buffer in user-provided memory (no back buffer) */
-      osmesa->rb = new_osmesa_renderbuffer(&osmesa->mesa, format, type);
-      _mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT, osmesa->rb);
-      assert(osmesa->rb->RefCount == 2);
-                        
+      /* Create depth/stencil/accum buffers.  We'll create the color
+       * buffer later in OSMesaMakeCurrent().
+       */
       _mesa_add_soft_renderbuffers(osmesa->gl_buffer,
                                    GL_FALSE, /* color */
                                    osmesa->gl_visual->haveDepthBuffer,
@@ -1308,11 +1319,23 @@ OSMesaMakeCurrent( OSMesaContext osmesa, void *buffer, GLenum type,
     */
    _glapi_check_multithread();
 
+
+   /* Create a front/left color buffer which wraps the user-provided buffer.
+    * There is no back color buffer.
+    * If the user tries to use a 8, 16 or 32-bit/channel buffer that
+    * doesn't match what Mesa was compiled for (CHAN_BITS) the
+    * _mesa_add_renderbuffer() function will create a "wrapper" renderbuffer
+    * that converts rendering from CHAN_BITS to the user-requested channel
+    * size.
+    */
+   osmesa->rb = new_osmesa_renderbuffer(&osmesa->mesa, osmesa->format, type);
+   _mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT, osmesa->rb);
+   assert(osmesa->rb->RefCount == 2);
+
    /* Set renderbuffer fields.  Set width/height = 0 to force 
     * osmesa_renderbuffer_storage() being called by _mesa_resize_framebuffer()
     */
    osmesa->rb->Data = buffer;
-   osmesa->rb->DataType = type;
    osmesa->rb->Width = osmesa->rb->Height = 0;
 
    /* Set the framebuffer's size.  This causes the

src/mesa/shader/slang/slang_codegen.c

@@ -4187,11 +4187,10 @@ _slang_gen_variable(slang_assemble_ctx * A, slang_operation *oper)
    slang_atom name = oper->var ? oper->var->a_name : oper->a_id;
    slang_variable *var = _slang_variable_locate(oper->locals, name, GL_TRUE);
    slang_ir_node *n;
-   if (!var) {
+   if (!var || !var->declared) {
       slang_info_log_error(A->log, "undefined variable '%s'", (char *) name);
       return NULL;
    }
-   assert(var->declared);
    n = new_var(A, var);
    return n;
 }

src/mesa/shader/slang/slang_compile_variable.h

@@ -41,7 +41,7 @@ typedef struct slang_variable_
    GLuint size;                     /**< Variable's size in bytes */
    GLboolean is_global;
    GLboolean isTemp;                /**< a named temporary (__resultTmp) */
-   GLboolean declared;              /**< for debug */
+   GLboolean declared;              /**< has the var been declared? */
    struct slang_ir_storage_ *store; /**< Storage for this var */
 } slang_variable;