diff options
Diffstat (limited to 'src/mesa/swrast_setup/ss_context.c')
| -rw-r--r-- | src/mesa/swrast_setup/ss_context.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/src/mesa/swrast_setup/ss_context.c b/src/mesa/swrast_setup/ss_context.c new file mode 100644 index 0000000000..4809e6f328 --- /dev/null +++ b/src/mesa/swrast_setup/ss_context.c @@ -0,0 +1,230 @@ +/* $Id: ss_context.c,v 1.1 2000/11/05 18:20:18 keithw Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.5 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keithw@valinux.com> + */ + + +#include "glheader.h" +#include "mem.h" + + +#include "ss_context.h" +#include "ss_triangle.h" +#include "ss_vb.h" + +#include "swrast_setup.h" + + +/* Stub for swsetup->Triangle to select a true triangle function + * after a state change. + */ +static void +_swsetup_validate_quad( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint v3, GLuint pv ) +{ + _swsetup_choose_trifuncs( ctx ); + SWSETUP_CONTEXT(ctx)->Quad( ctx, v0, v1, v2, v3, pv ); +} + +static void +_swsetup_validate_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + _swsetup_choose_trifuncs( ctx ); + SWSETUP_CONTEXT(ctx)->Triangle( ctx, v0, v1, v2, pv ); +} + +static void +_swsetup_validate_line( GLcontext *ctx, GLuint v0, GLuint v1, GLuint pv ) +{ + _swsetup_choose_trifuncs( ctx ); + SWSETUP_CONTEXT(ctx)->Line( ctx, v0, v1, pv ); +} + + +static void +_swsetup_validate_points( GLcontext *ctx, GLuint first, GLuint last ) +{ + _swsetup_choose_trifuncs( ctx ); + SWSETUP_CONTEXT(ctx)->Points( ctx, first, last ); +} + + + +static void +_swsetup_validate_rastersetup( struct vertex_buffer *VB, + GLuint start, GLuint end ) +{ + GLcontext *ctx = VB->ctx; + _swsetup_choose_rastersetup_func( ctx ); + SWSETUP_CONTEXT(ctx)->RasterSetup( VB, start, end ); +} + + +#define _SWSETUP_NEW_RASTERSETUP (_NEW_RENDERMODE| \ + _NEW_TEXTURE| \ + _NEW_COLOR| \ + _NEW_FOG| \ + _NEW_POINT) + +#define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT) + + +#if 0 +/* TODO: sleep/wakeup mechanism + */ +static void +_swsetup_sleep( GLcontext *ctx, GLuint new_state ) +{ +} +#endif + +static void +_swsetup_invalidate_state( GLcontext *ctx, GLuint new_state ) +{ + SScontext *swsetup = SWSETUP_CONTEXT(ctx); + + swsetup->NewState |= new_state; + + + if (new_state & _SWSETUP_NEW_RENDERINDEX) { + swsetup->Triangle = _swsetup_validate_triangle; + swsetup->Line = _swsetup_validate_line; + swsetup->Points = _swsetup_validate_points; + swsetup->Quad = _swsetup_validate_quad; + } + + if (new_state & _SWSETUP_NEW_RASTERSETUP) { + swsetup->RasterSetup = _swsetup_validate_rastersetup; + } +} + + + +/* Dispatch from these fixed entrypoints to the state-dependent + * functions: + */ +void +_swsetup_Quad( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint v3, GLuint pv ) +{ + SWSETUP_CONTEXT(ctx)->Quad( ctx, v0, v1, v2, v3, pv ); +} + +void +_swsetup_Triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + SWSETUP_CONTEXT(ctx)->Triangle( ctx, v0, v1, v2, pv ); +} + +void +_swsetup_Line( GLcontext *ctx, GLuint v0, GLuint v1, GLuint pv ) +{ + SWSETUP_CONTEXT(ctx)->Line( ctx, v0, v1, pv ); +} + + +void +_swsetup_Points( GLcontext *ctx, GLuint first, GLuint last ) +{ + SWSETUP_CONTEXT(ctx)->Points( ctx, first, last ); +} + +void +_swsetup_RasterSetup( struct vertex_buffer *VB, GLuint start, GLuint end ) +{ + SWSETUP_CONTEXT(VB->ctx)->RasterSetup( VB, start, end ); +} + +void +_swsetup_InvalidateState( GLcontext *ctx, GLuint new_state ) +{ + SWSETUP_CONTEXT(ctx)->InvalidateState( ctx, new_state ); +} + + +GLboolean +_swsetup_CreateContext( GLcontext *ctx ) +{ + SScontext *swsetup = (SScontext *)CALLOC(sizeof(SScontext)); + + if (!swsetup) + return GL_FALSE; + + ctx->swsetup_context = swsetup; + + swsetup->NewState = ~0; + swsetup->InvalidateState = _swsetup_invalidate_state; + swsetup->Quad = _swsetup_validate_quad; + swsetup->Triangle = _swsetup_validate_triangle; + swsetup->Line = _swsetup_validate_line; + swsetup->Points = _swsetup_validate_points; + swsetup->RasterSetup = _swsetup_validate_rastersetup; + + _swsetup_vb_init( ctx ); + _swsetup_trifuncs_init( ctx ); + + return GL_TRUE; +} + +void +_swsetup_DestroyContext( GLcontext *ctx ) +{ + if (SWSETUP_CONTEXT(ctx)) { + FREE(SWSETUP_CONTEXT(ctx)); + ctx->swsetup_context = 0; + } +} + +GLboolean +_swsetup_RegisterVB( struct vertex_buffer *VB ) +{ + SSvertexbuffer *ssvb = (SSvertexbuffer *)CALLOC(sizeof(SSvertexbuffer) ); + + ssvb->verts = ALIGN_MALLOC( sizeof(SWvertex) * VB->Size, 32); + if (!ssvb->verts) { + FREE(ssvb); + return GL_FALSE; + } + + VB->swsetup_vb = ssvb; + return GL_TRUE; +} + + +void +_swsetup_UnregisterVB( struct vertex_buffer *VB ) +{ + SSvertexbuffer *ssvb = SWSETUP_VB(VB); + + if (ssvb) { + if (ssvb->verts) ALIGN_FREE(ssvb->verts); + FREE(ssvb); + VB->swsetup_vb = 0; + } +} |