From 02f377d5e2dd18537d0807ad63675a0970b5a37d Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Fri, 4 Nov 2011 08:57:20 +0100
Subject: xserver pixman mesa git update 4 nov 2011

---
 mesalib/src/mesa/main/teximage.c | 60 ++++++++++++++++++++++++++++++++--------
 1 file changed, 49 insertions(+), 11 deletions(-)

(limited to 'mesalib/src/mesa/main/teximage.c')

diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index acf7187fd..a84d6873d 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -549,7 +549,8 @@ _mesa_set_tex_image(struct gl_texture_object *tObj,
 
    ASSERT(tObj);
    ASSERT(texImage);
-   ASSERT(target != GL_TEXTURE_RECTANGLE_NV || level == 0);
+   if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES)
+      assert(level == 0);
 
    tObj->Image[face][level] = texImage;
 
@@ -607,10 +608,11 @@ _mesa_delete_texture_image(struct gl_context *ctx,
 GLboolean
 _mesa_is_proxy_texture(GLenum target)
 {
-   /* NUM_TEXTURE_TARGETS should match number of terms below,
-    * except there's no proxy for GL_TEXTURE_BUFFER.
+   /*
+    * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
+    * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
     */
-   assert(NUM_TEXTURE_TARGETS == 8);
+   assert(NUM_TEXTURE_TARGETS == 7 + 2);
 
    return (target == GL_PROXY_TEXTURE_1D ||
            target == GL_PROXY_TEXTURE_2D ||
@@ -723,6 +725,9 @@ _mesa_select_tex_object(struct gl_context *ctx,
       case GL_TEXTURE_BUFFER:
          return ctx->Extensions.ARB_texture_buffer_object
             ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
+      case GL_TEXTURE_EXTERNAL_OES:
+         return ctx->Extensions.OES_EGL_image_external
+            ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
       default:
          _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
          return NULL;
@@ -911,6 +916,7 @@ _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
               ctx->Extensions.EXT_texture_array)
          ? ctx->Const.MaxTextureLevels : 0;
    case GL_TEXTURE_BUFFER:
+   case GL_TEXTURE_EXTERNAL_OES:
       /* fall-through */
    default:
       return 0; /* bad target */
@@ -942,6 +948,7 @@ _mesa_get_texture_dimensions(GLenum target)
    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
    case GL_TEXTURE_1D_ARRAY:
    case GL_PROXY_TEXTURE_1D_ARRAY:
+   case GL_TEXTURE_EXTERNAL_OES:
       return 2;
    case GL_TEXTURE_3D:
    case GL_PROXY_TEXTURE_3D:
@@ -1432,6 +1439,23 @@ legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
 }
 
 
+/**
+ * Helper function to determine if a texture object is mutable (in terms
+ * of GL_ARB_texture_storage).
+ */
+static GLboolean
+mutable_tex_object(struct gl_context *ctx, GLenum target)
+{
+   if (ctx->Extensions.ARB_texture_storage) {
+      struct gl_texture_object *texObj =
+         _mesa_get_current_tex_object(ctx, target);
+      return !texObj->Immutable;
+   }
+   return GL_TRUE;
+}
+
+
+
 /**
  * Test the glTexImage[123]D() parameters for errors.
  * 
@@ -1643,6 +1667,12 @@ texture_error_check( struct gl_context *ctx,
       return GL_TRUE;
    }
 
+   if (!mutable_tex_object(ctx, target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glTexImage%dD(immutable texture)", dimensions);
+      return GL_TRUE;
+   }
+
    /* if we get here, the parameters are OK */
    return GL_FALSE;
 }
@@ -1906,6 +1936,12 @@ copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
       }
    }
 
+   if (!mutable_tex_object(ctx, target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glCopyTexImage%dD(immutable texture)", dimensions);
+      return GL_TRUE;
+   }
+
    /* if we get here, the parameters are OK */
    return GL_FALSE;
 }
@@ -2504,13 +2540,10 @@ _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
-   if (!ctx->Extensions.OES_EGL_image) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glEGLImageTargetTexture2DOES(unsupported)");
-      return;
-   }
-
-   if (target != GL_TEXTURE_2D) {
+   if ((target == GL_TEXTURE_2D &&
+        !ctx->Extensions.OES_EGL_image) ||
+       (target == GL_TEXTURE_EXTERNAL_OES &&
+        !ctx->Extensions.OES_EGL_image_external)) {
       _mesa_error(ctx, GL_INVALID_ENUM,
 		  "glEGLImageTargetTexture2D(target=%d)", target);
       return;
@@ -3107,6 +3140,11 @@ compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
       return GL_INVALID_VALUE;
    }
 
+   if (!mutable_tex_object(ctx, target)) {
+      *reason = "immutable texture";
+      return GL_INVALID_OPERATION;
+   }
+
    return GL_NO_ERROR;
 }
 
-- 
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