mesa: avoid valgrind warning due to opaque only being set sometimes
[mesa.git] / src / mesa / main / shaderimage.c
index 5a3c47a62c837f3f4ac3de9e54a6804314857fb1..90643c4ed6d8a6d96dd585d57a7174508e8ad7c8 100644 (file)
@@ -331,12 +331,54 @@ get_image_format_class(mesa_format format)
    }
 }
 
-/**
- * Return whether an image format should be supported based on the current API
- * version of the context.
- */
-static bool
-is_image_format_supported(const struct gl_context *ctx, GLenum format)
+static GLenum
+_image_format_class_to_glenum(enum image_format_class class)
+{
+   switch (class) {
+   case IMAGE_FORMAT_CLASS_NONE:
+      return GL_NONE;
+   case IMAGE_FORMAT_CLASS_1X8:
+      return GL_IMAGE_CLASS_1_X_8;
+   case IMAGE_FORMAT_CLASS_1X16:
+      return GL_IMAGE_CLASS_1_X_16;
+   case IMAGE_FORMAT_CLASS_1X32:
+      return GL_IMAGE_CLASS_1_X_32;
+   case IMAGE_FORMAT_CLASS_2X8:
+      return GL_IMAGE_CLASS_2_X_8;
+   case IMAGE_FORMAT_CLASS_2X16:
+      return GL_IMAGE_CLASS_2_X_16;
+   case IMAGE_FORMAT_CLASS_2X32:
+      return GL_IMAGE_CLASS_2_X_32;
+   case IMAGE_FORMAT_CLASS_10_11_11:
+      return GL_IMAGE_CLASS_11_11_10;
+   case IMAGE_FORMAT_CLASS_4X8:
+      return GL_IMAGE_CLASS_4_X_8;
+   case IMAGE_FORMAT_CLASS_4X16:
+      return GL_IMAGE_CLASS_4_X_16;
+   case IMAGE_FORMAT_CLASS_4X32:
+      return GL_IMAGE_CLASS_4_X_32;
+   case IMAGE_FORMAT_CLASS_2_10_10_10:
+      return GL_IMAGE_CLASS_10_10_10_2;
+   default:
+      assert(!"Invalid image_format_class");
+      return GL_NONE;
+   }
+}
+
+GLenum
+_mesa_get_image_format_class(GLenum format)
+{
+   mesa_format tex_format = _mesa_get_shader_image_format(format);
+   if (tex_format == MESA_FORMAT_NONE)
+      return GL_NONE;
+
+   enum image_format_class class = get_image_format_class(tex_format);
+   return _image_format_class_to_glenum(class);
+}
+
+bool
+_mesa_is_shader_image_format_supported(const struct gl_context *ctx,
+                                       GLenum format)
 {
    switch (format) {
    /* Formats supported on both desktop and ES GL, c.f. table 8.27 of the
@@ -415,8 +457,8 @@ _mesa_init_image_units(struct gl_context *ctx)
       ctx->ImageUnits[i] = _mesa_default_image_unit(ctx);
 }
 
-static GLboolean
-validate_image_unit(struct gl_context *ctx, struct gl_image_unit *u)
+GLboolean
+_mesa_is_image_unit_valid(struct gl_context *ctx, struct gl_image_unit *u)
 {
    struct gl_texture_object *t = u->TexObj;
    mesa_format tex_format;
@@ -424,7 +466,8 @@ validate_image_unit(struct gl_context *ctx, struct gl_image_unit *u)
    if (!t)
       return GL_FALSE;
 
-   _mesa_test_texobj_completeness(ctx, t);
+   if (!t->_BaseComplete && !t->_MipmapComplete)
+       _mesa_test_texobj_completeness(ctx, t);
 
    if (u->Level < t->BaseLevel ||
        u->Level > t->_MaxLevel ||
@@ -473,17 +516,6 @@ validate_image_unit(struct gl_context *ctx, struct gl_image_unit *u)
    return GL_TRUE;
 }
 
-void
-_mesa_validate_image_units(struct gl_context *ctx)
-{
-   unsigned i;
-
-   for (i = 0; i < ctx->Const.MaxImageUnits; ++i) {
-      struct gl_image_unit *u = &ctx->ImageUnits[i];
-      u->_Valid = validate_image_unit(ctx, u);
-   }
-}
-
 static GLboolean
 validate_bind_image_texture(struct gl_context *ctx, GLuint unit,
                             GLuint texture, GLint level, GLboolean layered,
@@ -513,7 +545,7 @@ validate_bind_image_texture(struct gl_context *ctx, GLuint unit,
       return GL_FALSE;
    }
 
-   if (!is_image_format_supported(ctx, format)) {
+   if (!_mesa_is_shader_image_format_supported(ctx, format)) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(format)");
       return GL_FALSE;
    }
@@ -546,6 +578,23 @@ _mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
          return;
       }
 
+      /* From section 8.22 "Texture Image Loads and Stores" of the OpenGL ES
+       * 3.1 spec:
+       *
+       * "An INVALID_OPERATION error is generated if texture is not the name
+       *  of an immutable texture object."
+       *
+       * However note that issue 7 of the GL_OES_texture_buffer spec
+       * recognizes that there is no way to create immutable buffer textures,
+       * so those are excluded from this requirement.
+       */
+      if (_mesa_is_gles(ctx) && !t->Immutable &&
+          t->Target != GL_TEXTURE_BUFFER) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glBindImageTexture(!immutable)");
+         return;
+      }
+
       _mesa_reference_texobj(&u->TexObj, t);
    } else {
       _mesa_reference_texobj(&u->TexObj, NULL);
@@ -555,7 +604,6 @@ _mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
    u->Access = access;
    u->Format = format;
    u->_ActualFormat = _mesa_get_shader_image_format(format);
-   u->_Valid = validate_image_unit(ctx, u);
 
    if (u->TexObj && _mesa_tex_target_is_layered(u->TexObj->Target)) {
       u->Layered = layered;
@@ -565,10 +613,6 @@ _mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
       u->Layered = GL_FALSE;
       u->Layer = 0;
    }
-
-   if (ctx->Driver.BindImageTexture)
-      ctx->Driver.BindImageTexture(ctx, u, u->TexObj, level, layered,
-                                   layer, access, format);
 }
 
 void GLAPIENTRY
@@ -671,7 +715,7 @@ _mesa_BindImageTextures(GLuint first, GLsizei count, const GLuint *textures)
             tex_format = image->InternalFormat;
          }
 
-         if (!is_image_format_supported(ctx, tex_format)) {
+         if (!_mesa_is_shader_image_format_supported(ctx, tex_format)) {
             /* The ARB_multi_bind spec says:
              *
              *   "An INVALID_OPERATION error is generated if the internal
@@ -695,7 +739,6 @@ _mesa_BindImageTextures(GLuint first, GLsizei count, const GLuint *textures)
          u->Access = GL_READ_WRITE;
          u->Format = tex_format;
          u->_ActualFormat = _mesa_get_shader_image_format(tex_format);
-         u->_Valid = validate_image_unit(ctx, u);
       } else {
          /* Unbind the texture from the unit */
          _mesa_reference_texobj(&u->TexObj, NULL);
@@ -705,13 +748,7 @@ _mesa_BindImageTextures(GLuint first, GLsizei count, const GLuint *textures)
          u->Access = GL_READ_ONLY;
          u->Format = GL_R8;
          u->_ActualFormat = MESA_FORMAT_R_UNORM8;
-         u->_Valid = GL_FALSE;
       }
-
-      /* Pass the BindImageTexture call down to the device driver */
-      if (ctx->Driver.BindImageTexture)
-         ctx->Driver.BindImageTexture(ctx, u, u->TexObj, u->Level, u->Layered,
-                                      u->Layer, u->Access, u->Format);
    }
 
    _mesa_end_texture_lookups(ctx);
@@ -748,8 +785,10 @@ _mesa_MemoryBarrierByRegion(GLbitfield barriers)
        * That is, if barriers is the special value GL_ALL_BARRIER_BITS, then all
        * barriers allowed by glMemoryBarrierByRegion should be activated."
        */
-      if (barriers == GL_ALL_BARRIER_BITS)
-         return ctx->Driver.MemoryBarrier(ctx, all_allowed_bits);
+      if (barriers == GL_ALL_BARRIER_BITS) {
+         ctx->Driver.MemoryBarrier(ctx, all_allowed_bits);
+         return;
+      }
 
       /* From section 7.11.2 of the OpenGL ES 3.1 specification:
        *