[Mesa-dev] [PATCH 04/11] mesa: Add missing error checks to GetProgramInfoLog, GetShaderInfoLog and GetProgramiv

[Ian Romanick]

On 02/10/2015 07:40 AM, Eduardo Lima Mitev wrote:
> Fixes 3 dEQP tests:
> * dEQP-GLES3.functional.negative_api.state.get_program_info_log
> * dEQP-GLES3.functional.negative_api.state.get_shader_info_log
> * dEQP-GLES3.functional.negative_api.state.get_programiv
> ---
>  src/mesa/main/shaderapi.c | 84 ++++++++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 79 insertions(+), 5 deletions(-)
> 
> diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
> index 52eab46..9dc03c0 100644
> --- a/src/mesa/main/shaderapi.c
> +++ b/src/mesa/main/shaderapi.c
> @@ -546,7 +546,22 @@ get_programiv(struct gl_context *ctx, GLuint program, GLenum pname,
>        || _mesa_is_gles3(ctx);
>  
>     if (!shProg) {
> -      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramiv(program)");
> +      /* Section 6.1.12 Shader and Program Queries, page 234 of the
> +       * OpenGL ES 3.0.4 spec states:
> +       *
> +       *     "These commands will generate the error INVALID_VALUE if the
> +       *     provided name is not the name of either a shader or program object,
> +       *     and INVALID_OPERATION if the provided name identifies an object of
> +       *     the other type."
> +       *
> +       * Also, Section 7.13. SHADER, PROGRAM, AND PROGRAM PIPELINE QUERIES,
> +       * page 161 of the OpenGL 4.5 spec states:
> +       *
> +       *     "An INVALID_OPERATION error is generated if prgoram is the name of a
> +       *      shader object."
> +       */
> +      struct gl_shader *sh = _mesa_lookup_shader(ctx, program);
> +      _mesa_error(ctx, sh ? GL_INVALID_OPERATION : GL_INVALID_VALUE, "glGetProgramiv(program)");

The correct error is generated automatically if _mesa_lookup_shader_err
is used instead of _mesa_lookup_shader.

>        return;
>     }
>  
> @@ -764,11 +779,40 @@ static void
>  get_program_info_log(struct gl_context *ctx, GLuint program, GLsizei bufSize,
>                       GLsizei *length, GLchar *infoLog)
>  {
> -   struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, program);
> +   struct gl_shader_program *shProg;
> +
> +   /* Section 2.5 GL Errors (page 18) of the OpenGL ES 3.0.4 spec and
> +    * section 2.3.1 (Errors) of the OpenGL 4.5 spec say:
> +    *
> +    *     "If a negative number is provided where an argument of type sizei or
> +    *     sizeiptr is specified, an INVALID_VALUE error is generated."
> +    */
> +   if (bufSize < 0) {
> +      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramInfoLog(bufSize < 0)");
> +      return;
> +   }
> +
> +   shProg = _mesa_lookup_shader_program(ctx, program);
>     if (!shProg) {
> -      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramInfoLog(program)");
> +      /* Section 6.1.12 Shader and Program Queries, page 234 of the
> +       * OpenGL ES 3.0.4 spec states:
> +       *
> +       *     "These commands will generate the error INVALID_VALUE if the
> +       *     provided name is not the name of either a shader or program object,
> +       *     and INVALID_OPERATION if the provided name identifies an object of
> +       *     the other type."
> +       *
> +       * Also, Section 7.13. SHADER, PROGRAM, AND PROGRAM PIPELINE QUERIES,
> +       * page 161 of the OpenGL 4.5 spec states:
> +       *
> +       *     "An INVALID_OPERATION error is generated if prgoram is the name of a
> +       *      shader object."
> +       */
> +      struct gl_shader *sh = _mesa_lookup_shader(ctx, program);
> +      _mesa_error(ctx, sh ? GL_INVALID_OPERATION : GL_INVALID_VALUE, "glGetProgramInfoLog(program)");
>        return;
>     }
> +
>     _mesa_copy_string(infoLog, bufSize, length, shProg->InfoLog);
>  }
>  
> @@ -777,11 +821,41 @@ static void
>  get_shader_info_log(struct gl_context *ctx, GLuint shader, GLsizei bufSize,
>                      GLsizei *length, GLchar *infoLog)
>  {
> -   struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
> +   struct gl_shader *sh;
> +
> +   /* Section 2.5 GL Errors (page 18) of the OpenGL ES 3.0.4 spec and
> +    * section 2.3.1 (Errors) of the OpenGL 4.5 spec say:
> +    *
> +    *     "If a negative number is provided where an argument of type sizei or
> +    *     sizeiptr is specified, an INVALID_VALUE error is generated."
> +    */
> +   if (bufSize < 0) {
> +      _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderInfoLog(bufSize < 0)");
> +      return;
> +   }
> +
> +   sh = _mesa_lookup_shader(ctx, shader);
>     if (!sh) {
> -      _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderInfoLog(shader)");
> +      struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, shader);
> +      /* Section 6.1.12 Shader and Program Queries, page 234 of the
> +       * OpenGL ES 3.0.4 spec states:
> +       *
> +       *     "These commands will generate the error INVALID_VALUE if the
> +       *     provided name is not the name of either a shader or program object,
> +       *     and INVALID_OPERATION if the provided name identifies an object of
> +       *     the other type."
> +       *
> +       * Also, Section 7.13. SHADER, PROGRAM, AND PROGRAM PIPELINE QUERIES,
> +       * page 161 of the OpenGL 4.5 spec states:
> +       *
> +       *     "An INVALID_OPERATION error is generated if shader is the name of a
> +       *      program object."
> +       */
> +      _mesa_error(ctx, shProg ? GL_INVALID_OPERATION : GL_INVALID_VALUE,
> +                  "glGetShaderInfoLog(shader)");
>        return;
>     }
> +
>     _mesa_copy_string(infoLog, bufSize, length, sh->InfoLog);
>  }
>  
>