[Mesa-dev] [PATCH] mesa: GLES2 should return different error enums for invalid fbo queries

Marek Olšák maraeo at gmail.com
Wed Jul 20 13:38:39 PDT 2011


Alright, here's an updated patch:

---
 src/mesa/main/fbobject.c |   23 ++++++++++++++++-------
 1 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 8496936..82eb7fb 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -2134,10 +2134,14 @@
_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum
attachment,
 {
    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 = ctx->API == API_OPENGL ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
+
    buffer = get_framebuffer_target(ctx, target);
    if (!buffer) {
       _mesa_error(ctx, GL_INVALID_ENUM,
@@ -2188,7 +2192,12 @@
_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum
attachment,
       }
       else {
          assert(att->Type == GL_NONE);
-         *params = 0;
+         if (ctx->API == API_OPENGL) {
+            *params = 0;
+         } else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glGetFramebufferAttachmentParameterivEXT(pname)");
+         }
       }
       return;
    case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
@@ -2196,7 +2205,7 @@
_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 {
@@ -2214,7 +2223,7 @@
_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 {
@@ -2232,7 +2241,7 @@
_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 {
@@ -2246,7 +2255,7 @@
_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum
attachment,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
+         _mesa_error(ctx, err,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else {
@@ -2267,7 +2276,7 @@
_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum
attachment,
          return;
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
+         _mesa_error(ctx, err,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else {
@@ -2301,7 +2310,7 @@
_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum
attachment,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else if (att->Type == GL_NONE) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
+         _mesa_error(ctx, err,
                      "glGetFramebufferAttachmentParameterivEXT(pname)");
       }
       else if (att->Texture) {
-- 
1.7.4.1


On Wed, Jul 20, 2011 at 2:27 AM, Ian Romanick <idr at freedesktop.org> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 07/18/2011 06:11 PM, Marek Olšák wrote:
>> ES 2.0.25 page 127 says:
>>
>>   If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
>>   querying any other pname will generate INVALID_ENUM.
>
> Hurray for be different just for the sake of being different!
>
>> See also:
>> b9e9df78a03edb35472c2e231aef4747e09db792
>>
>> NOTE: This is a candidate for the 7.10 and 7.11 branches.
>> ---
>>  src/mesa/main/fbobject.c |   22 +++++++++++++++-------
>>  1 files changed, 15 insertions(+), 7 deletions(-)
>>
>> diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
>> index 8496936..1e11513 100644
>> --- a/src/mesa/main/fbobject.c
>> +++ b/src/mesa/main/fbobject.c
>> @@ -2134,10 +2134,13 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
>>  {
>>     const struct gl_renderbuffer_attachment *att;
>>     struct gl_framebuffer *buffer;
>> +   GLboolean is_gl;
>>     GET_CURRENT_CONTEXT(ctx);
>>
>>     ASSERT_OUTSIDE_BEGIN_END(ctx);
>>
>> +   is_gl = ctx->API == API_OPENGL;
>> +
>
> Maybe this would be better
>
>   GLenum err = (ctx->API == API_OPENGL) ? GL_INVALID_OPERATION :
> GL_INVALID_ENUM;
>
> Every time I look at error generation code in Mesa, I feel a little ill.
>  It always ends up being so much ugly code.  meh.
>
>>     buffer = get_framebuffer_target(ctx, target);
>>     if (!buffer) {
>>        _mesa_error(ctx, GL_INVALID_ENUM,
>> @@ -2188,7 +2191,12 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
>>        }
>>        else {
>>           assert(att->Type == GL_NONE);
>> -         *params = 0;
>> +         if (is_gl) {
>> +            *params = 0;
>> +         } else {
>> +            _mesa_error(ctx, GL_INVALID_ENUM,
>> +                        "glGetFramebufferAttachmentParameterivEXT(pname)");
>> +         }
>>        }
>>        return;
>>     case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
>> @@ -2196,7 +2204,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
>>        *params = att->TextureLevel;
>>        }
>>        else if (att->Type == GL_NONE) {
>> -         _mesa_error(ctx, GL_INVALID_OPERATION,
>> +         _mesa_error(ctx, is_gl ? GL_INVALID_OPERATION : GL_INVALID_ENUM,
>>                       "glGetFramebufferAttachmentParameterivEXT(pname)");
>>        }
>>        else {
>> @@ -2214,7 +2222,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
>>           }
>>        }
>>        else if (att->Type == GL_NONE) {
>> -         _mesa_error(ctx, GL_INVALID_OPERATION,
>> +         _mesa_error(ctx, is_gl ? GL_INVALID_OPERATION : GL_INVALID_ENUM,
>>                       "glGetFramebufferAttachmentParameterivEXT(pname)");
>>        }
>>        else {
>> @@ -2232,7 +2240,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
>>           }
>>        }
>>        else if (att->Type == GL_NONE) {
>> -         _mesa_error(ctx, GL_INVALID_OPERATION,
>> +         _mesa_error(ctx, is_gl ? GL_INVALID_OPERATION : GL_INVALID_ENUM,
>>                       "glGetFramebufferAttachmentParameterivEXT(pname)");
>>        }
>>        else {
>> @@ -2246,7 +2254,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
>>                       "glGetFramebufferAttachmentParameterivEXT(pname)");
>>        }
>>        else if (att->Type == GL_NONE) {
>> -         _mesa_error(ctx, GL_INVALID_OPERATION,
>> +         _mesa_error(ctx, is_gl ? GL_INVALID_OPERATION : GL_INVALID_ENUM,
>>                       "glGetFramebufferAttachmentParameterivEXT(pname)");
>>        }
>>        else {
>> @@ -2267,7 +2275,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
>>           return;
>>        }
>>        else if (att->Type == GL_NONE) {
>> -         _mesa_error(ctx, GL_INVALID_OPERATION,
>> +         _mesa_error(ctx, is_gl ? GL_INVALID_OPERATION : GL_INVALID_ENUM,
>>                       "glGetFramebufferAttachmentParameterivEXT(pname)");
>>        }
>>        else {
>> @@ -2301,7 +2309,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
>>                       "glGetFramebufferAttachmentParameterivEXT(pname)");
>>        }
>>        else if (att->Type == GL_NONE) {
>> -         _mesa_error(ctx, GL_INVALID_OPERATION,
>> +         _mesa_error(ctx, is_gl ? GL_INVALID_OPERATION : GL_INVALID_ENUM,
>>                       "glGetFramebufferAttachmentParameterivEXT(pname)");
>>        }
>>        else if (att->Texture) {
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