diff options
author | Ian Romanick <ian.d.romanick@intel.com> | 2009-09-10 15:33:45 -0700 |
---|---|---|
committer | Ian Romanick <ian.d.romanick@intel.com> | 2009-09-10 15:33:45 -0700 |
commit | b8e1e8d2d8ae6ffbf8f271b46ee89788a926b3b0 (patch) | |
tree | 5db502ab80287bfc8ff61082784017c7448464f5 /src/mesa/tnl/t_rasterpos.c | |
parent | 81722c5d7e8e93d837510b9e6e5d014ec64cf4b3 (diff) | |
parent | d9dc4cb0e4f578da9e50c9d1ba6fd9c22ea2fca6 (diff) |
Merge branch 'master' into asm-shader-rework-2
Conflicts:
src/mesa/shader/lex.yy.c
src/mesa/shader/program_parse.tab.c
src/mesa/shader/program_parse.tab.h
Diffstat (limited to 'src/mesa/tnl/t_rasterpos.c')
-rw-r--r-- | src/mesa/tnl/t_rasterpos.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/src/mesa/tnl/t_rasterpos.c b/src/mesa/tnl/t_rasterpos.c index f1fdddf0f5..99b6787455 100644 --- a/src/mesa/tnl/t_rasterpos.c +++ b/src/mesa/tnl/t_rasterpos.c @@ -46,11 +46,10 @@ * \return zero if outside view volume, or one if inside. */ static GLuint -viewclip_point( const GLfloat v[] ) +viewclip_point_xy( const GLfloat v[] ) { if ( v[0] > v[3] || v[0] < -v[3] - || v[1] > v[3] || v[1] < -v[3] - || v[2] > v[3] || v[2] < -v[3] ) { + || v[1] > v[3] || v[1] < -v[3] ) { return 0; } else { @@ -408,18 +407,18 @@ _tnl_RasterPos(GLcontext *ctx, const GLfloat vObj[4]) /* apply projection matrix: clip = Proj * eye */ TRANSFORM_POINT( clip, ctx->ProjectionMatrixStack.Top->m, eye ); - /* clip to view volume */ - if (ctx->Transform.RasterPositionUnclipped) { - /* GL_IBM_rasterpos_clip: only clip against Z */ + /* clip to view volume. */ + if (!ctx->Transform.DepthClamp) { if (viewclip_point_z(clip) == 0) { ctx->Current.RasterPosValid = GL_FALSE; return; } } - else if (viewclip_point(clip) == 0) { - /* Normal OpenGL behaviour */ - ctx->Current.RasterPosValid = GL_FALSE; - return; + if (!ctx->Transform.RasterPositionUnclipped) { + if (viewclip_point_xy(clip) == 0) { + ctx->Current.RasterPosValid = GL_FALSE; + return; + } } /* clip to user clipping planes */ @@ -443,6 +442,12 @@ _tnl_RasterPos(GLcontext *ctx, const GLfloat vObj[4]) / ctx->DrawBuffer->_DepthMaxF; ctx->Current.RasterPos[3] = clip[3]; + if (ctx->Transform.DepthClamp) { + ctx->Current.RasterPos[3] = CLAMP(ctx->Current.RasterPos[3], + ctx->Viewport.Near, + ctx->Viewport.Far); + } + /* compute raster distance */ if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0]; |