diff options
Diffstat (limited to 'mesalib/src/mesa/main/transformfeedback.c')
| -rw-r--r-- | mesalib/src/mesa/main/transformfeedback.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/transformfeedback.c b/mesalib/src/mesa/main/transformfeedback.c index 6f8221201..7679b4b08 100644 --- a/mesalib/src/mesa/main/transformfeedback.c +++ b/mesalib/src/mesa/main/transformfeedback.c @@ -603,6 +603,38 @@ _mesa_TransformFeedbackVaryings(GLuint program, GLsizei count, return; } + if (ctx->Extensions.ARB_transform_feedback3) { + if (bufferMode == GL_INTERLEAVED_ATTRIBS) { + unsigned buffers = 1; + + for (i = 0; i < count; i++) { + if (strcmp(varyings[i], "gl_NextBuffer") == 0) + buffers++; + } + + if (buffers > ctx->Const.MaxTransformFeedbackBuffers) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glTransformFeedbackVaryings(too many gl_NextBuffer " + "occurences)"); + return; + } + } else { + for (i = 0; i < count; i++) { + if (strcmp(varyings[i], "gl_NextBuffer") == 0 || + strcmp(varyings[i], "gl_SkipComponents1") == 0 || + strcmp(varyings[i], "gl_SkipComponents2") == 0 || + strcmp(varyings[i], "gl_SkipComponents3") == 0 || + strcmp(varyings[i], "gl_SkipComponents4") == 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glTransformFeedbackVaryings(SEPARATE_ATTRIBS," + "varying=%s)", + varyings[i]); + return; + } + } + } + } + /* free existing varyings, if any */ for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) { free(shProg->TransformFeedback.VaryingNames[i]); |