From: Kristian Høgsberg Date: Wed, 13 Oct 2010 15:11:47 +0000 (-0400) Subject: Drop the "neutral" tnl module X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=81ccb3e2ce708619f4c23537a237d61bdffdd35f;p=mesa.git Drop the "neutral" tnl module Just always check for FLUSH_UPDATE_CURRENT and call Driver.BeginVertices when necessary. By using the unlikely() macros, this ends up as a 10% performance improvement (for isosurf, anyway) over the old, complicated function pointer swapping. --- diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c index e7d8146f749..10166ae5a2b 100644 --- a/src/mesa/main/context.c +++ b/src/mesa/main/context.c @@ -949,11 +949,6 @@ _mesa_initialize_context_for_api(struct gl_context *ctx, switch (ctx->API) { case API_OPENGL: - /* Neutral tnl module stuff */ - _mesa_init_exec_vtxfmt( ctx ); - ctx->TnlModule.Current = NULL; - ctx->TnlModule.SwapCount = 0; - #if FEATURE_dlist ctx->Save = _mesa_create_save_table(); if (!ctx->Save) { diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index aace09d6efc..6702032679b 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -2942,32 +2942,6 @@ struct gl_matrix_stack #include "dd.h" -#define NUM_VERTEX_FORMAT_ENTRIES (sizeof(GLvertexformat) / sizeof(void *)) - -/** - * Core Mesa's support for tnl modules: - */ -struct gl_tnl_module -{ - /** - * Vertex format to be lazily swapped into current dispatch. - */ - const GLvertexformat *Current; - - /** - * \name Record of functions swapped out. - * On restore, only need to swap these functions back in. - */ - /*@{*/ - struct { - _glapi_proc * location; - _glapi_proc function; - } Swapped[NUM_VERTEX_FORMAT_ENTRIES]; - GLuint SwapCount; - /*@}*/ -}; - - /** * Display list flags. * Strictly this is a tnl-private concept, but it doesn't seem @@ -3231,9 +3205,6 @@ struct gl_context */ GLboolean mvp_with_dp4; - /** Core tnl module support */ - struct gl_tnl_module TnlModule; - /** * \name Hooks for module contexts. * diff --git a/src/mesa/main/vtxfmt.c b/src/mesa/main/vtxfmt.c index 284e77798c7..887c7d9ac4d 100644 --- a/src/mesa/main/vtxfmt.c +++ b/src/mesa/main/vtxfmt.c @@ -34,51 +34,11 @@ #include "vtxfmt.h" #include "eval.h" #include "dlist.h" +#include "main/dispatch.h" #if FEATURE_beginend - -/* The neutral vertex format. This wraps all tnl module functions, - * verifying that the currently-installed module is valid and then - * installing the function pointers in a lazy fashion. It records the - * function pointers that have been swapped out, which allows a fast - * restoration of the neutral module in almost all cases -- a typical - * app might only require 4-6 functions to be modified from the neutral - * baseline, and only restoring these is certainly preferable to doing - * the entire module's 60 or so function pointers. - */ - -#define PRE_LOOPBACK( FUNC ) \ -{ \ - GET_CURRENT_CONTEXT(ctx); \ - struct gl_tnl_module * const tnl = &(ctx->TnlModule); \ - const int tmp_offset = _gloffset_ ## FUNC ; \ - \ - ASSERT( tnl->Current ); \ - ASSERT( tnl->SwapCount < NUM_VERTEX_FORMAT_ENTRIES ); \ - ASSERT( tmp_offset >= 0 ); \ - \ - if (tnl->SwapCount == 0) \ - ctx->Driver.BeginVertices( ctx ); \ - \ - /* Save the swapped function's dispatch entry so it can be */ \ - /* restored later. */ \ - tnl->Swapped[tnl->SwapCount].location = & (((_glapi_proc *)ctx->Exec)[tmp_offset]); \ - tnl->Swapped[tnl->SwapCount].function = (_glapi_proc)TAG(FUNC); \ - tnl->SwapCount++; \ - \ - if ( 0 ) \ - _mesa_debug(ctx, " swapping gl" #FUNC"...\n" ); \ - \ - /* Install the tnl function pointer. */ \ - SET_ ## FUNC(ctx->Exec, tnl->Current->FUNC); \ -} - -#define TAG(x) neutral_##x -#include "vtxfmt_tmp.h" - - /** * Use the per-vertex functions found in to initialze the given * API dispatch table. @@ -165,17 +125,9 @@ install_vtxfmt( struct _glapi_table *tab, const GLvertexformat *vfmt ) } -void _mesa_init_exec_vtxfmt( struct gl_context *ctx ) -{ - install_vtxfmt( ctx->Exec, &neutral_vtxfmt ); - ctx->TnlModule.SwapCount = 0; -} - - void _mesa_install_exec_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt ) { - ctx->TnlModule.Current = vfmt; - _mesa_restore_exec_vtxfmt( ctx ); + install_vtxfmt( ctx->Exec, vfmt ); } @@ -185,19 +137,4 @@ void _mesa_install_save_vtxfmt( struct gl_context *ctx, const GLvertexformat *vf } -void _mesa_restore_exec_vtxfmt( struct gl_context *ctx ) -{ - struct gl_tnl_module *tnl = &(ctx->TnlModule); - GLuint i; - - /* Restore the neutral tnl module wrapper. - */ - for ( i = 0 ; i < tnl->SwapCount ; i++ ) { - *(tnl->Swapped[i].location) = tnl->Swapped[i].function; - } - - tnl->SwapCount = 0; -} - - #endif /* FEATURE_beginend */ diff --git a/src/mesa/main/vtxfmt.h b/src/mesa/main/vtxfmt.h index 401eb80a0ad..147385cee96 100644 --- a/src/mesa/main/vtxfmt.h +++ b/src/mesa/main/vtxfmt.h @@ -38,20 +38,11 @@ #if FEATURE_beginend -extern void _mesa_init_exec_vtxfmt( struct gl_context *ctx ); - extern void _mesa_install_exec_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt ); extern void _mesa_install_save_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt ); -extern void _mesa_restore_exec_vtxfmt( struct gl_context *ctx ); - #else /* FEATURE_beginend */ -static INLINE void -_mesa_init_exec_vtxfmt( struct gl_context *ctx ) -{ -} - static INLINE void _mesa_install_exec_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt ) { @@ -62,11 +53,6 @@ _mesa_install_save_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt ) { } -static INLINE void -_mesa_restore_exec_vtxfmt( struct gl_context *ctx ) -{ -} - #endif /* FEATURE_beginend */ #endif /* _VTXFMT_H_ */ diff --git a/src/mesa/vbo/vbo_exec_api.c b/src/mesa/vbo/vbo_exec_api.c index 5070b35c11d..80ca1d866e7 100644 --- a/src/mesa/vbo/vbo_exec_api.c +++ b/src/mesa/vbo/vbo_exec_api.c @@ -358,10 +358,12 @@ static void vbo_exec_fixup_vertex( struct gl_context *ctx, #define ATTR( A, N, V0, V1, V2, V3 ) \ do { \ struct vbo_exec_context *exec = &vbo_context(ctx)->exec; \ - \ - if (exec->vtx.active_sz[A] != N) \ - vbo_exec_fixup_vertex(ctx, A, N); \ - \ + \ + if (unlikely(!(exec->ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT))) \ + ctx->Driver.BeginVertices( ctx ); \ + if (unlikely(exec->vtx.active_sz[A] != N)) \ + vbo_exec_fixup_vertex(ctx, A, N); \ + \ { \ GLfloat *dest = exec->vtx.attrptr[A]; \ if (N>0) dest[0] = V0; \ @@ -911,10 +913,8 @@ void vbo_exec_FlushVertices( struct gl_context *ctx, GLuint flags ) /* Need to do this to ensure BeginVertices gets called again: */ - if (exec->ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) { - _mesa_restore_exec_vtxfmt( ctx ); + if (exec->ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) exec->ctx->Driver.NeedFlush &= ~FLUSH_UPDATE_CURRENT; - } exec->ctx->Driver.NeedFlush &= ~flags;