diff options
| author | Brian Paul <[email protected]> | 2003-06-13 02:37:27 +0000 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2003-06-13 02:37:27 +0000 |
| commit | b17a722ca3989e8563ee04cb2939f4835f8a171e (patch) | |
| tree | 817c548199ee8e4a1ba2a0266f491b2b80b942d3 /src/mesa/swrast/s_triangle.c | |
| parent | 0c0e583c01116c9e26ac99735e581ea2b842a88d (diff) | |
Implemented GL_ARB_occlusion_query (not 100% finalized).
Diffstat (limited to 'src/mesa/swrast/s_triangle.c')
| -rw-r--r-- | src/mesa/swrast/s_triangle.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c index 43c131a6e75..0ce3459d544 100644 --- a/src/mesa/swrast/s_triangle.c +++ b/src/mesa/swrast/s_triangle.c @@ -899,13 +899,16 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span, +/* + * Special tri function for occlusion testing + */ #define NAME occlusion_zless_triangle #define DO_OCCLUSION_TEST #define INTERP_Z 1 #define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE -#define SETUP_CODE \ - if (ctx->OcclusionResult) { \ - return; \ +#define SETUP_CODE \ + if (ctx->OcclusionResult && !ctx->Occlusion.Active) { \ + return; \ } #define RENDER_SPAN( span ) \ GLuint i; \ @@ -913,7 +916,7 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span, GLdepth z = FixedToDepth(span.z); \ if (z < zRow[i]) { \ ctx->OcclusionResult = GL_TRUE; \ - return; \ + ctx->Occlusion.PassedCounter++; \ } \ span.z += span.zStep; \ } @@ -1034,7 +1037,8 @@ _swrast_choose_triangle( GLcontext *ctx ) return; } - if (ctx->Depth.OcclusionTest && + /* special case for occlusion testing */ + if ((ctx->Depth.OcclusionTest || ctx->Occlusion.Active) && ctx->Depth.Test && ctx->Depth.Mask == GL_FALSE && ctx->Depth.Func == GL_LESS && |