From: Roland Scheidegger <rscheidegger@gmx.ch>
Date: Thu, 31 Aug 2006 01:10:07 +0000 (+0000)
Subject: do not abort with not supported vertex prog output configuration, fallback instead
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=901f83f14efbef80d03485580484dbdbc8f1234b;p=mesa.git

do not abort with not supported vertex prog output configuration, fallback instead
---

diff --git a/src/mesa/drivers/dri/r200/r200_vertprog.c b/src/mesa/drivers/dri/r200/r200_vertprog.c
index 8714cc7aa28..339d3603a48 100644
--- a/src/mesa/drivers/dri/r200/r200_vertprog.c
+++ b/src/mesa/drivers/dri/r200/r200_vertprog.c
@@ -407,6 +407,7 @@ static GLboolean r200_translate_vertex_program(struct r200_vertex_program *vp)
    unsigned long hw_op;
 
    vp->native = GL_FALSE;
+   vp->translated = GL_TRUE;
 
    if (mesa_vp->Base.NumInstructions == 0)
       return GL_FALSE;
@@ -422,6 +423,18 @@ static GLboolean r200_translate_vertex_program(struct r200_vertex_program *vp)
       return GL_FALSE;
    }
 
+   if ((mesa_vp->Base.OutputsWritten &
+      ~((1 << VERT_RESULT_HPOS) | (1 << VERT_RESULT_COL0) | (1 << VERT_RESULT_COL1) |
+      (1 << VERT_RESULT_FOGC) | (1 << VERT_RESULT_TEX0) | (1 << VERT_RESULT_TEX1) |
+      (1 << VERT_RESULT_TEX2) | (1 << VERT_RESULT_TEX3) | (1 << VERT_RESULT_TEX4) |
+      (1 << VERT_RESULT_TEX5) | (1 << VERT_RESULT_PSIZ))) != 0) {
+      if (R200_DEBUG & DEBUG_FALLBACKS) {
+	 fprintf(stderr, "can't handle vert prog outputs 0x%x\n",
+	    mesa_vp->Base.OutputsWritten);
+      }
+      return GL_FALSE;
+   }
+
    if (mesa_vp->IsNVProgram) {
    /* subtle differences in spec like guaranteed initialized regs could cause
       headaches. Might want to remove the driconf option to enable it completely */
@@ -561,9 +574,12 @@ static GLboolean r200_translate_vertex_program(struct r200_vertex_program *vp)
    Haven't seen attr 14 used, maybe that's for the hw pointsize vec1 (which is
    not possibe to use with vertex progs as it is lacking in vert prog specification) */
 
-   assert(mesa_vp->Base.OutputsWritten & (1 << VERT_RESULT_HPOS));
-
-   vp->translated = GL_TRUE;
+   if (!(mesa_vp->Base.OutputsWritten & (1 << VERT_RESULT_HPOS))) {
+      if (R200_DEBUG & DEBUG_FALLBACKS) {
+	 fprintf(stderr, "can't handle vert prog without position output\n");
+      }
+      return GL_FALSE;
+   }
 
    o_inst = vp->instr;
    for(vpi = mesa_vp->Base.Instructions; vpi->Opcode != OPCODE_END; vpi++, o_inst++){