Attachment 12263 Details for Bug 12906 – patch to matrix.c

[patch] patch to matrix.c

viewport.patch (text/plain), 1.23 KB, created by Brian Paul on 2007-10-30 10:00:47 UTC

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Creator: Brian Paul

Created: 2007-10-30 10:00:47 UTC

Size: 1.23 KB

patch

obsolete

>diff --git a/src/mesa/main/matrix.c b/src/mesa/main/matrix.c
>index 0f96f94..97bb18e 100644
>--- a/src/mesa/main/matrix.c
>+++ b/src/mesa/main/matrix.c
>@@ -570,6 +570,8 @@ void
> _mesa_set_viewport( GLcontext *ctx, GLint x, GLint y,
>                     GLsizei width, GLsizei height )
> {
>+   GLfloat depthMaxF;
>+
>    if (MESA_VERBOSE & VERBOSE_API)
>       _mesa_debug(ctx, "glViewport %d %d %d %d\n", x, y, width, height);
> 
>@@ -589,6 +591,9 @@ _mesa_set_viewport( GLcontext *ctx, GLint x, GLint y,
>    ctx->Viewport.Height = height;
>    ctx->NewState |= _NEW_VIEWPORT;
> 
>+   /* if we don't know the Z buffer's depth at this time, just use 1.0 */
>+   depthMaxF = ctx->DrawBuffer ? ctx->DrawBuffer->_DepthMaxF : 1.0F;
>+
> #if 1
>    /* XXX remove this someday.  Currently the DRI drivers rely on
>     * the WindowMap matrix being up to date in the driver's Viewport
>@@ -598,7 +603,7 @@ _mesa_set_viewport( GLcontext *ctx, GLint x, GLint y,
>                          ctx->Viewport.X, ctx->Viewport.Y,
>                          ctx->Viewport.Width, ctx->Viewport.Height,
>                          ctx->Viewport.Near, ctx->Viewport.Far,
>-                         ctx->DrawBuffer->_DepthMaxF);
>+                         depthMaxF);
> #endif
> 
>    if (ctx->Driver.Viewport) {

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