diff options
Diffstat (limited to 'src/mesa/shader/arbprogram.c')
| -rw-r--r-- | src/mesa/shader/arbprogram.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/mesa/shader/arbprogram.c b/src/mesa/shader/arbprogram.c index 91fb691038..bff80d7ee3 100644 --- a/src/mesa/shader/arbprogram.c +++ b/src/mesa/shader/arbprogram.c @@ -195,13 +195,15 @@ _mesa_GetVertexAttribPointervARB(GLuint index, GLenum pname, GLvoid **pointer) GLboolean GLAPIENTRY _mesa_IsProgramARB(GLuint id) { + struct gl_program *prog = NULL; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); if (id == 0) return GL_FALSE; - if (_mesa_lookup_program(ctx, id)) + prog = _mesa_lookup_program(ctx, id); + if (prog && (prog != &_mesa_DummyProgram)) return GL_TRUE; else return GL_FALSE; @@ -765,6 +767,7 @@ void GLAPIENTRY _mesa_GetProgramStringARB(GLenum target, GLenum pname, GLvoid *string) { const struct gl_program *prog; + char *dst = (char *) string; GET_CURRENT_CONTEXT(ctx); if (!ctx->_CurrentProgram) @@ -788,5 +791,8 @@ _mesa_GetProgramStringARB(GLenum target, GLenum pname, GLvoid *string) return; } - _mesa_memcpy(string, prog->String, _mesa_strlen((char *) prog->String)); + if (prog->String) + _mesa_memcpy(dst, prog->String, _mesa_strlen((char *) prog->String)); + else + *dst = '\0'; } |