From 48cc352a71c728e0ce092dd7d7ec0945db304907 Mon Sep 17 00:00:00 2001 From: Maciej Cencora Date: Sat, 11 Jul 2009 15:53:01 +0200 Subject: r300: fix StrideB == 0 case when converting data format MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reported-by: Nicolai Hähnle --- src/mesa/drivers/dri/r300/r300_draw.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/src/mesa/drivers/dri/r300/r300_draw.c b/src/mesa/drivers/dri/r300/r300_draw.c index 5420293b91..9769ff5399 100644 --- a/src/mesa/drivers/dri/r300/r300_draw.c +++ b/src/mesa/drivers/dri/r300/r300_draw.c @@ -195,6 +195,11 @@ static void r300TranslateAttrib(GLcontext *ctx, GLuint attr, int count, const st } GLfloat *dst_ptr, *tmp; + + /* Convert value for first element only */ + if (input->StrideB == 0) + count = 1; + tmp = dst_ptr = _mesa_malloc(sizeof(GLfloat) * input->Size * count); switch (input->Type) { @@ -228,7 +233,11 @@ static void r300TranslateAttrib(GLcontext *ctx, GLuint attr, int count, const st type = GL_FLOAT; r300_attr.free_needed = GL_TRUE; r300_attr.data = tmp; - r300_attr.stride = sizeof(GLfloat) * input->Size; + if (input->StrideB == 0) { + r300_attr.stride = 0; + } else { + r300_attr.stride = sizeof(GLfloat) * input->Size; + } r300_attr.dwords = input->Size; } else { type = input->Type; -- cgit v1.2.3