| 0,0 → 1,223 |
|---|
| /* |
| * Mesa 3-D graphics library |
| * Version: 7.2 |
| * |
| * Copyright (C) 1999-2008 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 <keith@tungstengraphics.com> |
| */ |
| |
| |
| #include "main/glheader.h" |
| #include "main/imports.h" |
| #include "main/context.h" |
| #include "main/macros.h" |
| #include "main/mtypes.h" |
| #include "main/light.h" |
| #include "math/m_translate.h" |
| #include "math/m_xform.h" |
| |
| #include "tnl.h" |
| #include "t_context.h" |
| #include "t_pipeline.h" |
| |
| #include "vbo/vbo.h" |
| |
| GLboolean |
| _tnl_CreateContext( struct gl_context *ctx ) |
| { |
| TNLcontext *tnl; |
| |
| /* Create the TNLcontext structure |
| */ |
| ctx->swtnl_context = tnl = (TNLcontext *) CALLOC( sizeof(TNLcontext) ); |
| |
| if (!tnl) { |
| return GL_FALSE; |
| } |
| |
| /* Initialize the VB. |
| */ |
| tnl->vb.Size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES; |
| |
| |
| /* Initialize tnl state. |
| */ |
| if (ctx->VertexProgram._MaintainTnlProgram) { |
| _tnl_install_pipeline( ctx, _tnl_vp_pipeline ); |
| } else { |
| _tnl_install_pipeline( ctx, _tnl_default_pipeline ); |
| } |
| |
| tnl->NeedNdcCoords = GL_TRUE; |
| tnl->AllowVertexFog = GL_TRUE; |
| tnl->AllowPixelFog = GL_TRUE; |
| |
| /* Set a few default values in the driver struct. |
| */ |
| tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; |
| tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; |
| tnl->Driver.NotifyMaterialChange = _mesa_validate_all_lighting_tables; |
| |
| tnl->nr_blocks = 0; |
| |
| /* plug in the VBO drawing function */ |
| vbo_set_draw_func(ctx, _tnl_vbo_draw_prims); |
| |
| _math_init_transformation(); |
| _math_init_translate(); |
| |
| return GL_TRUE; |
| } |
| |
| |
| void |
| _tnl_DestroyContext( struct gl_context *ctx ) |
| { |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| |
| _tnl_destroy_pipeline( ctx ); |
| |
| FREE(tnl); |
| ctx->swtnl_context = NULL; |
| } |
| |
| |
| void |
| _tnl_InvalidateState( struct gl_context *ctx, GLuint new_state ) |
| { |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| const struct gl_vertex_program *vp = ctx->VertexProgram._Current; |
| const struct gl_fragment_program *fp = ctx->FragmentProgram._Current; |
| GLuint i; |
| |
| if (new_state & (_NEW_HINT | _NEW_PROGRAM)) { |
| ASSERT(tnl->AllowVertexFog || tnl->AllowPixelFog); |
| tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) |
| || !tnl->AllowPixelFog) && !fp; |
| } |
| |
| tnl->pipeline.new_state |= new_state; |
| |
| /* Calculate tnl->render_inputs. This bitmask indicates which vertex |
| * attributes need to be emitted to the rasterizer. |
| */ |
| RENDERINPUTS_ZERO( tnl->render_inputs_bitset ); |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS ); |
| |
| if (!fp || (fp->Base.InputsRead & FRAG_BIT_COL0)) { |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 ); |
| } |
| |
| if (NEED_SECONDARY_COLOR(ctx)) |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 ); |
| |
| for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) { |
| if (ctx->Texture._EnabledCoordUnits & (1 << i) || |
| (fp && fp->Base.InputsRead & FRAG_BIT_TEX(i))) { |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) ); |
| } |
| } |
| |
| if (ctx->Fog.Enabled) { |
| /* fixed-function fog */ |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG ); |
| } |
| else if (fp) { |
| if (fp->FogOption != GL_NONE || (fp->Base.InputsRead & FRAG_BIT_FOGC)) { |
| /* fragment program needs fog coord */ |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG ); |
| } |
| } |
| |
| if (ctx->Polygon.FrontMode != GL_FILL || |
| ctx->Polygon.BackMode != GL_FILL) |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_EDGEFLAG ); |
| |
| if (ctx->RenderMode == GL_FEEDBACK) |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX0 ); |
| |
| if (ctx->Point._Attenuated || |
| (ctx->VertexProgram._Enabled && ctx->VertexProgram.PointSizeEnabled)) |
| RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE ); |
| |
| /* check for varying vars which are written by the vertex program */ |
| if (vp) { |
| GLuint i; |
| for (i = 0; i < MAX_VARYING; i++) { |
| if (vp->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_VAR0 + i)) { |
| RENDERINPUTS_SET(tnl->render_inputs_bitset, |
| _TNL_ATTRIB_GENERIC(i)); |
| } |
| } |
| } |
| } |
| |
| |
| void |
| _tnl_wakeup( struct gl_context *ctx ) |
| { |
| /* Assume we haven't been getting state updates either: |
| */ |
| _tnl_InvalidateState( ctx, ~0 ); |
| |
| #if 0 |
| if (ctx->Light.ColorMaterialEnabled) { |
| _mesa_update_color_material( ctx, |
| ctx->Current.Attrib[VERT_ATTRIB_COLOR0] ); |
| } |
| #endif |
| } |
| |
| |
| |
| |
| /** |
| * Drivers call this function to tell the TCL module whether or not |
| * it wants Normalized Device Coords (NDC) computed. I.e. whether |
| * we should "Divide-by-W". Software renders will want that. |
| */ |
| void |
| _tnl_need_projected_coords( struct gl_context *ctx, GLboolean mode ) |
| { |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| tnl->NeedNdcCoords = mode; |
| } |
| |
| void |
| _tnl_allow_vertex_fog( struct gl_context *ctx, GLboolean value ) |
| { |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| tnl->AllowVertexFog = value; |
| tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) |
| || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current; |
| |
| } |
| |
| void |
| _tnl_allow_pixel_fog( struct gl_context *ctx, GLboolean value ) |
| { |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| tnl->AllowPixelFog = value; |
| tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) |
| || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current; |
| } |
| |