diff options
Diffstat (limited to 'src/tdfx_context.c')
| -rw-r--r-- | src/tdfx_context.c | 1026 |
1 files changed, 1026 insertions, 0 deletions
diff --git a/src/tdfx_context.c b/src/tdfx_context.c new file mode 100644 index 0000000..b4eea25 --- /dev/null +++ b/src/tdfx_context.c @@ -0,0 +1,1026 @@ +/* -*- mode: c; c-basic-offset: 3 -*- + * + * Copyright 2000 VA Linux Systems Inc., Fremont, California. + * + * 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 (including the next + * paragraph) 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 + * VA LINUX SYSTEMS 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. + */ + +/** + * \file tdfx_context.c + * Context management functions for 3Dfx hardware. + * + * \author Gareth Hughes <gareth@valinux.com> (original rewrite 29 Sep - 1 Oct 2000) + * \author Brian Paul <brianp@valinux.com> + * \author Daniel Borca <dborca@users.sourceforge.net> (new fixes 19 Jul 2004) + */ + +#include <dlfcn.h> +#include "tdfx_context.h" +#include "tdfx_dd.h" +#include "tdfx_state.h" +#include "tdfx_vb.h" +#include "tdfx_tex.h" +#include "tdfx_tris.h" +#include "tdfx_render.h" +#include "tdfx_span.h" +#include "tdfx_texman.h" +#include "extensions.h" +#include "hash.h" +#include "texobj.h" + +#include "swrast/swrast.h" +#include "swrast_setup/swrast_setup.h" +#include "vbo/vbo.h" + +#include "tnl/tnl.h" +#include "tnl/t_pipeline.h" + +#include "drivers/common/driverfuncs.h" + +#include "utils.h" + +#define need_GL_ARB_multisample +/* #define need_GL_ARB_point_parameters */ +#define need_GL_ARB_occlusion_query +#define need_GL_ARB_texture_compression +#define need_GL_ARB_vertex_buffer_object +/* #define need_GL_ARB_vertex_program */ +#define need_GL_EXT_blend_equation_separate +#define need_GL_EXT_blend_func_separate +#define need_GL_EXT_blend_minmax +#define need_GL_EXT_fog_coord +#define need_GL_EXT_multi_draw_arrays +#define need_GL_EXT_paletted_texture +/* #define need_GL_EXT_secondary_color */ +#define need_GL_IBM_multimode_draw_arrays +/* #define need_GL_MESA_program_debug */ +/* #define need_GL_NV_vertex_program */ +#include "extension_helper.h" + + +/** + * Common extension strings exported by all cards + */ +const struct dri_extension card_extensions[] = +{ + { "GL_ARB_multisample", GL_ARB_multisample_functions }, + { "GL_ARB_occlusion_query", GL_ARB_occlusion_query_functions }, + { "GL_ARB_texture_mirrored_repeat", NULL }, + { "GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions }, + + { "GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions }, + { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions }, + { "GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions }, + { "GL_EXT_paletted_texture", GL_EXT_paletted_texture_functions }, + { "GL_EXT_shared_texture_palette", NULL }, + { "GL_EXT_stencil_wrap", NULL }, + { "GL_EXT_texture_env_add", NULL }, + { "GL_EXT_texture_lod_bias", NULL }, + { "GL_IBM_multimode_draw_arrays", GL_IBM_multimode_draw_arrays_functions }, + +#ifdef need_GL_ARB_point_parameters + { "GL_ARB_point_parameters", GL_ARB_point_parameters_functions }, + { "GL_ARB_point_sprite", NULL }, +#endif +#ifdef need_GL_EXT_secondary_color + { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions }, +#endif +#ifdef need_GL_ARB_vertex_program + { "GL_ARB_vertex_program", GL_ARB_vertex_program_functions } +#endif +#ifdef need_GL_NV_vertex_program + { "GL_NV_vertex_program", GL_NV_vertex_program_functions } + { "GL_NV_vertex_program1_1", NULL }, +#endif +#ifdef need_GL_MESA_program_debug + { "GL_MESA_program_debug", GL_MESA_program_debug_functions }, +#endif + { NULL, NULL } +}; + +/** + * Extension strings exported only by Naplam (e.g., Voodoo4 & Voodoo5) cards. + */ +const struct dri_extension napalm_extensions[] = +{ + { "GL_ARB_texture_compression", GL_ARB_texture_compression_functions }, + { "GL_ARB_texture_env_combine", NULL }, + { "GL_EXT_blend_equation_separate", GL_EXT_blend_equation_separate_functions }, + { "GL_EXT_blend_subtract", GL_EXT_blend_minmax_functions }, + { "GL_EXT_texture_compression_s3tc", NULL }, + { "GL_EXT_texture_env_combine", NULL }, + + { "GL_3DFX_texture_compression_FXT1", NULL }, + { "GL_NV_blend_square", NULL }, + { "GL_S3_s3tc", NULL }, + { NULL, NULL } +}; + +/* + * Enable/Disable the extensions for this context. + */ +static void tdfxDDInitExtensions( GLcontext *ctx ) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + + driInitExtensions( ctx, card_extensions, GL_FALSE ); + + if ( fxMesa->haveTwoTMUs ) { + _mesa_enable_extension( ctx, "GL_ARB_multitexture" ); + } + + if ( TDFX_IS_NAPALM( fxMesa ) ) { + driInitExtensions( ctx, napalm_extensions, GL_FALSE ); + } else { + _mesa_enable_extension( ctx, "GL_SGIS_generate_mipmap" ); + } +} + + + +static const struct tnl_pipeline_stage *tdfx_pipeline[] = { + &_tnl_vertex_transform_stage, + &_tnl_normal_transform_stage, + &_tnl_lighting_stage, + &_tnl_fog_coordinate_stage, + &_tnl_texgen_stage, + &_tnl_texture_transform_stage, + &_tnl_point_attenuation_stage, + &_tnl_render_stage, + 0, +}; + +static const struct dri_debug_control debug_control[] = +{ + { "dri", DEBUG_VERBOSE_DRI }, + { "sync", DEBUG_ALWAYS_SYNC }, + { "api", DEBUG_VERBOSE_API }, + { "fall", DEBUG_VERBOSE_FALL }, + { NULL, 0 } +}; + +GLboolean tdfxCreateContext( const __GLcontextModes *mesaVis, + __DRIcontextPrivate *driContextPriv, + void *sharedContextPrivate ) +{ + tdfxContextPtr fxMesa; + GLcontext *ctx, *shareCtx; + __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv; + tdfxScreenPrivate *fxScreen = (tdfxScreenPrivate *) sPriv->private; + TDFXSAREAPriv *saPriv = (TDFXSAREAPriv *) ((char *) sPriv->pSAREA + + sizeof(drm_sarea_t)); + struct dd_function_table functions; + + /* Allocate tdfx context */ + fxMesa = (tdfxContextPtr) CALLOC( sizeof(tdfxContextRec) ); + if (!fxMesa) + return GL_FALSE; + + /* Init default driver functions then plug in our tdfx-specific functions + * (the texture functions are especially important) + */ + _mesa_init_driver_functions(&functions); + tdfxDDInitDriverFuncs(mesaVis, &functions); + tdfxInitTextureFuncs(&functions); + tdfxInitRenderFuncs(&functions); + + /* Allocate the Mesa context */ + if (sharedContextPrivate) + shareCtx = ((tdfxContextPtr) sharedContextPrivate)->glCtx; + else + shareCtx = NULL; + + fxMesa->glCtx = _mesa_create_context(mesaVis, shareCtx, + &functions, (void *) fxMesa); + if (!fxMesa->glCtx) { + FREE(fxMesa); + return GL_FALSE; + } + driContextPriv->driverPrivate = fxMesa; + + /* Mirror some important DRI state + */ + fxMesa->hHWContext = driContextPriv->hHWContext; + fxMesa->driHwLock = &sPriv->pSAREA->lock; + fxMesa->driFd = sPriv->fd; + + fxMesa->driScreen = sPriv; + fxMesa->driContext = driContextPriv; + fxMesa->fxScreen = fxScreen; + fxMesa->sarea = saPriv; + + /*JJJ - really?*/ + fxMesa->haveHwAlpha = ( mesaVis->alphaBits && + ((mesaVis->greenBits == 8) || + (mesaVis->depthBits == 0)) ); + fxMesa->haveHwStencil = ( TDFX_IS_NAPALM( fxMesa ) && + mesaVis->stencilBits && + mesaVis->depthBits == 24 ); + + fxMesa->screen_width = fxScreen->width; + fxMesa->screen_height = fxScreen->height; + + fxMesa->new_gl_state = ~0; + fxMesa->new_state = ~0; + fxMesa->dirty = ~0; + + /* Parse configuration files */ + driParseConfigFiles (&fxMesa->optionCache, &fxScreen->optionCache, + fxMesa->driScreen->myNum, "tdfx"); + + /* NOTE: This must be here before any Glide calls! */ + if (!tdfxInitGlide( fxMesa )) { + FREE(fxMesa); + return GL_FALSE; + } + + fxMesa->Glide.grDRIOpen( (char*) sPriv->pFB, fxScreen->regs.map, fxScreen->deviceID, + fxScreen->width, fxScreen->height, fxScreen->mem, fxScreen->cpp, + fxScreen->stride, fxScreen->fifoOffset, fxScreen->fifoSize, + fxScreen->fbOffset, fxScreen->backOffset, fxScreen->depthOffset, + fxScreen->textureOffset, fxScreen->textureSize, &saPriv->fifoPtr, + &saPriv->fifoRead ); + + if ( getenv( "FX_GLIDE_SWAPINTERVAL" ) ) { + fxMesa->Glide.SwapInterval = atoi( getenv( "FX_GLIDE_SWAPINTERVAL" ) ); + } else { + fxMesa->Glide.SwapInterval = 0; + } + if ( getenv( "FX_MAX_PENDING_SWAPS" ) ) { + fxMesa->Glide.MaxPendingSwaps = atoi( getenv( "FX_MAX_PENDING_SWAPS" ) ); + } else { + fxMesa->Glide.MaxPendingSwaps = 2; + } + + fxMesa->Glide.Initialized = GL_FALSE; + fxMesa->Glide.Board = 0; + + + if (getenv("FX_EMULATE_SINGLE_TMU")) { + fxMesa->haveTwoTMUs = GL_FALSE; + } + else { + if ( TDFX_IS_BANSHEE( fxMesa ) ) { + fxMesa->haveTwoTMUs = GL_FALSE; + } else { + fxMesa->haveTwoTMUs = GL_TRUE; + } + } + + fxMesa->stats.swapBuffer = 0; + fxMesa->stats.reqTexUpload = 0; + fxMesa->stats.texUpload = 0; + fxMesa->stats.memTexUpload = 0; + + fxMesa->tmuSrc = TDFX_TMU_NONE; + + ctx = fxMesa->glCtx; + if ( TDFX_IS_NAPALM( fxMesa ) ) { + ctx->Const.MaxTextureLevels = 12; + } else { + ctx->Const.MaxTextureLevels = 9; + } + ctx->Const.MaxTextureUnits = TDFX_IS_BANSHEE( fxMesa ) ? 1 : 2; + ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits; + ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits; + + /* No wide points. + */ + ctx->Const.MinPointSize = 1.0; + ctx->Const.MinPointSizeAA = 1.0; + ctx->Const.MaxPointSize = 1.0; + ctx->Const.MaxPointSizeAA = 1.0; + + /* Disable wide lines as we can't antialias them correctly in + * hardware. + */ + ctx->Const.MinLineWidth = 1.0; + ctx->Const.MinLineWidthAA = 1.0; + ctx->Const.MaxLineWidth = 1.0; + ctx->Const.MaxLineWidthAA = 1.0; + ctx->Const.LineWidthGranularity = 1.0; + + /* Initialize the software rasterizer and helper modules. + */ + _swrast_CreateContext( ctx ); + _vbo_CreateContext( ctx ); + _tnl_CreateContext( ctx ); + _swsetup_CreateContext( ctx ); + + /* Install the customized pipeline: + */ + _tnl_destroy_pipeline( ctx ); + _tnl_install_pipeline( ctx, tdfx_pipeline ); + + /* Configure swrast and T&L to match hardware characteristics: + */ + _swrast_allow_pixel_fog( ctx, GL_TRUE ); + _swrast_allow_vertex_fog( ctx, GL_FALSE ); + _tnl_allow_pixel_fog( ctx, GL_TRUE ); + _tnl_allow_vertex_fog( ctx, GL_FALSE ); + + tdfxDDInitExtensions( ctx ); + /* XXX these should really go right after _mesa_init_driver_functions() */ + tdfxDDInitSpanFuncs( ctx ); + tdfxDDInitStateFuncs( ctx ); + tdfxDDInitTriFuncs( ctx ); + tdfxInitVB( ctx ); + tdfxInitState( fxMesa ); + +#if DO_DEBUG + TDFX_DEBUG = driParseDebugString( getenv( "TDFX_DEBUG" ), debug_control ); +#endif + + if (driQueryOptionb(&fxMesa->optionCache, "no_rast")) { + fprintf(stderr, "disabling 3D acceleration\n"); + FALLBACK(fxMesa, TDFX_FALLBACK_DISABLE, 1); + } + + return GL_TRUE; +} + + +static GLboolean tdfxInitVertexFormats( tdfxContextPtr fxMesa ) +{ + FxI32 result; + int i; + + LOCK_HARDWARE( fxMesa ); + + fxMesa->Glide.grGet( GR_GLIDE_VERTEXLAYOUT_SIZE, sizeof(FxI32), &result ); + for ( i = 0 ; i < TDFX_NUM_LAYOUTS ; i++ ) { + fxMesa->layout[i] = MALLOC( result ); + if ( !fxMesa->layout[i] ) { + UNLOCK_HARDWARE( fxMesa ); + return GL_FALSE; + } + } + + /* Tiny vertex format - 16 bytes. + */ + fxMesa->Glide.grReset( GR_VERTEX_PARAMETER ); + fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS ); + fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_TINY] ); + + /* Non textured vertex format - 24 bytes (Need w for table fog) + */ + fxMesa->Glide.grReset( GR_VERTEX_PARAMETER ); + fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS ); + fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_NOTEX] ); + + /* Single textured vertex format - 32 bytes. + */ + fxMesa->Glide.grReset( GR_VERTEX_PARAMETER ); + fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS ); + fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_ST0, TDFX_ST0_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_SINGLE] ); + + /* Multitextured vertex format - 40 bytes. + */ + fxMesa->Glide.grReset( GR_VERTEX_PARAMETER ); + fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS ); + fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_ST0, TDFX_ST0_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_ST1, TDFX_ST1_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_MULTI] ); + + /* Projected texture vertex format - 36 bytes. + */ + fxMesa->Glide.grReset( GR_VERTEX_PARAMETER ); + fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS ); + fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_ST0, TDFX_ST0_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Q0, TDFX_Q0_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_PROJ1] ); + + /* Projected multitexture vertex format - 48 bytes. + */ + fxMesa->Glide.grReset( GR_VERTEX_PARAMETER ); + fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS ); + fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_ST0, TDFX_ST0_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Q0, TDFX_Q0_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_ST1, TDFX_ST1_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grVertexLayout( GR_PARAM_Q1, TDFX_Q1_OFFSET, GR_PARAM_ENABLE ); + fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_PROJ2] ); + + UNLOCK_HARDWARE( fxMesa ); + + return GL_TRUE; +} + + +/* + * Initialize the state in an tdfxContextPtr struct. + */ +static GLboolean +tdfxInitContext( __DRIdrawablePrivate *driDrawPriv, tdfxContextPtr fxMesa ) +{ + /* KW: Would be nice to make one of these a member of the other. + */ + FxI32 result[2]; + const char *gext; + + if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) { + fprintf( stderr, "%s( %p )\n", __FUNCTION__, (void *)fxMesa ); + } + +#if DEBUG_LOCKING + fprintf(stderr, "Debug locking enabled\n"); +#endif + + if ( fxMesa->Glide.Initialized ) + return GL_TRUE; + + fxMesa->width = driDrawPriv->w; + fxMesa->height = driDrawPriv->h; + + /* We have to use a light lock here, because we can't do any glide + * operations yet. No use of FX_* functions in this function. + */ + DRM_LIGHT_LOCK( fxMesa->driFd, fxMesa->driHwLock, fxMesa->hHWContext ); + + fxMesa->Glide.grGlideInit(); + fxMesa->Glide.grSstSelect( fxMesa->Glide.Board ); + + fxMesa->Glide.Context = fxMesa->Glide.grSstWinOpen( (FxU32) -1, + GR_RESOLUTION_NONE, + GR_REFRESH_NONE, + fxMesa->Glide.ColorFormat, + fxMesa->Glide.Origin, + 2, 1 ); + + fxMesa->Glide.grDRIResetSAREA(); + + DRM_UNLOCK( fxMesa->driFd, fxMesa->driHwLock, fxMesa->hHWContext ); + + if ( !fxMesa->Glide.Context ) + return GL_FALSE; + + + /* Perform the Glide-dependant part of the context initialization. + */ + FX_grColorMaskv( fxMesa->glCtx, true4 ); + + tdfxTMInit( fxMesa ); + + LOCK_HARDWARE( fxMesa ); + + /* JJJ - COMMAND_TRANSPORT, PALETTE6666 */ + gext = fxMesa->Glide.grGetString( GR_EXTENSION ); + fxMesa->Glide.HaveCombineExt = strstr(gext, "COMBINE") && !getenv("MESA_FX_IGNORE_CMBEXT"); + fxMesa->Glide.HaveCommandTransportExt = GL_FALSE; + fxMesa->Glide.HaveFogCoordExt = GL_TRUE; + fxMesa->Glide.HavePixelExt = strstr(gext, "PIXEXT") && !getenv("MESA_FX_IGNORE_PIXEXT"); + fxMesa->Glide.HaveTextureBufferExt = GL_TRUE; + fxMesa->Glide.HaveTexFmtExt = strstr(gext, "TEXFMT") && !getenv("MESA_FX_IGNORE_TEXFMT"); + fxMesa->Glide.HaveTexUMAExt = strstr(gext, "TEXUMA") && !getenv("MESA_FX_IGNORE_TEXUMA"); + fxMesa->Glide.HaveMirrorExt = strstr(gext, "TEXMIRROR") && !getenv("MESA_FX_IGNORE_MIREXT"); + fxMesa->Glide.HaveTexus2 = GL_FALSE; + + if ( fxMesa->glCtx->Visual.depthBits > 0 ) { + fxMesa->Glide.grDepthBufferMode(GR_DEPTHBUFFER_ZBUFFER); + } else { + fxMesa->Glide.grDepthBufferMode(GR_DEPTHBUFFER_DISABLE); + } + + fxMesa->Glide.grLfbWriteColorFormat( GR_COLORFORMAT_ABGR ); + + fxMesa->Glide.grGet( GR_TEXTURE_ALIGN, sizeof(FxI32), result ); + fxMesa->Glide.TextureAlign = result[0]; + + fxMesa->Glide.State = NULL; + fxMesa->Glide.grGet( GR_GLIDE_STATE_SIZE, sizeof(FxI32), result ); + fxMesa->Glide.State = MALLOC( result[0] ); + + fxMesa->Fog.Table = NULL; + fxMesa->Glide.grGet( GR_FOG_TABLE_ENTRIES, sizeof(FxI32), result ); + fxMesa->Fog.Table = MALLOC( result[0] * sizeof(GrFog_t) ); + + UNLOCK_HARDWARE( fxMesa ); + + if ( !fxMesa->Glide.State || !fxMesa->Fog.Table ) { + if ( fxMesa->Glide.State ) + FREE( fxMesa->Glide.State ); + if ( fxMesa->Fog.Table ) + FREE( fxMesa->Fog.Table ); + return GL_FALSE; + } + + if ( !tdfxInitVertexFormats( fxMesa ) ) { + return GL_FALSE; + } + + LOCK_HARDWARE( fxMesa ); + + fxMesa->Glide.grGlideGetState( fxMesa->Glide.State ); + + if ( getenv( "FX_GLIDE_INFO" ) ) { + printf( "GR_RENDERER = %s\n", (char *) fxMesa->Glide.grGetString( GR_RENDERER ) ); + printf( "GR_VERSION = %s\n", (char *) fxMesa->Glide.grGetString( GR_VERSION ) ); + printf( "GR_VENDOR = %s\n", (char *) fxMesa->Glide.grGetString( GR_VENDOR ) ); + printf( "GR_HARDWARE = %s\n", (char *) fxMesa->Glide.grGetString( GR_HARDWARE ) ); + printf( "GR_EXTENSION = %s\n", (char *) gext ); + } + + UNLOCK_HARDWARE( fxMesa ); + + fxMesa->numClipRects = 0; + fxMesa->pClipRects = NULL; + fxMesa->scissoredClipRects = GL_FALSE; + + fxMesa->Glide.Initialized = GL_TRUE; + + return GL_TRUE; +} + + +void +tdfxDestroyContext( __DRIcontextPrivate *driContextPriv ) +{ + tdfxContextPtr fxMesa = (tdfxContextPtr) driContextPriv->driverPrivate; + + if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) { + fprintf( stderr, "%s( %p )\n", __FUNCTION__, (void *)fxMesa ); + } + + if ( fxMesa ) { + if (fxMesa->glCtx->Shared->RefCount == 1 && fxMesa->driDrawable) { + /* This share group is about to go away, free our private + * texture object data. + */ + struct _mesa_HashTable *textures = fxMesa->glCtx->Shared->TexObjects; + GLuint id; + for (id = _mesa_HashFirstEntry(textures); + id; + id = _mesa_HashNextEntry(textures, id)) { + struct gl_texture_object *tObj + = _mesa_lookup_texture(fxMesa->glCtx, id); + tdfxTMFreeTexture(fxMesa, tObj); + } + } + + tdfxTMClose(fxMesa); /* free texture memory */ + + _swsetup_DestroyContext( fxMesa->glCtx ); + _tnl_DestroyContext( fxMesa->glCtx ); + _vbo_DestroyContext( fxMesa->glCtx ); + _swrast_DestroyContext( fxMesa->glCtx ); + + tdfxFreeVB( fxMesa->glCtx ); + + /* Free Mesa context */ + fxMesa->glCtx->DriverCtx = NULL; + _mesa_destroy_context(fxMesa->glCtx); + + /* free the tdfx context */ + FREE( fxMesa ); + } +} + + +GLboolean +tdfxUnbindContext( __DRIcontextPrivate *driContextPriv ) +{ + GET_CURRENT_CONTEXT(ctx); + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + + if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) { + fprintf( stderr, "%s( %p )\n", __FUNCTION__, (void *)driContextPriv ); + } + + if ( driContextPriv && (tdfxContextPtr) driContextPriv == fxMesa ) { + LOCK_HARDWARE(fxMesa); + fxMesa->Glide.grGlideGetState(fxMesa->Glide.State); + UNLOCK_HARDWARE(fxMesa); + } + return GL_TRUE; +} + + +GLboolean +tdfxMakeCurrent( __DRIcontextPrivate *driContextPriv, + __DRIdrawablePrivate *driDrawPriv, + __DRIdrawablePrivate *driReadPriv ) +{ + if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) { + fprintf( stderr, "%s( %p )\n", __FUNCTION__, (void *)driContextPriv ); + } + + if ( driContextPriv ) { + tdfxContextPtr newFx = (tdfxContextPtr) driContextPriv->driverPrivate; + GLcontext *newCtx = newFx->glCtx; + GET_CURRENT_CONTEXT(curCtx); + + if ((newFx->driDrawable != driDrawPriv) + || (newFx->driReadable != driReadPriv)) { + newFx->driDrawable = driDrawPriv; + newFx->driReadable = driReadPriv; + newFx->dirty = ~0; + } + else { + if (curCtx == newCtx) { + /* same drawable, same context -> no-op */ + /* Need to call _mesa_make_current2() in order to make sure API + * dispatch is set correctly. + */ + _mesa_make_current( newCtx, + (GLframebuffer *) driDrawPriv->driverPrivate, + (GLframebuffer *) driReadPriv->driverPrivate ); + return GL_TRUE; + } + /* [dBorca] tunnel2 requires this */ + newFx->dirty = ~0; + } + + driUpdateFramebufferSize(newCtx, driDrawPriv); + if (driDrawPriv != driReadPriv) { + driUpdateFramebufferSize(newCtx, driReadPriv); + } + + if ( !newFx->Glide.Initialized ) { + if ( !tdfxInitContext( driDrawPriv, newFx ) ) + return GL_FALSE; + + LOCK_HARDWARE( newFx ); + + /* FIXME: Force loading of window information */ + newFx->width = 0; + tdfxUpdateClipping(newCtx); + tdfxUploadClipping(newFx); + + UNLOCK_HARDWARE( newFx ); + } else { + LOCK_HARDWARE( newFx ); + + newFx->Glide.grSstSelect( newFx->Glide.Board ); + newFx->Glide.grGlideSetState( newFx->Glide.State ); + + tdfxUpdateClipping(newCtx); + tdfxUploadClipping(newFx); + + UNLOCK_HARDWARE( newFx ); + } + + _mesa_make_current( newCtx, + (GLframebuffer *) driDrawPriv->driverPrivate, + (GLframebuffer *) driReadPriv->driverPrivate ); + } else { + _mesa_make_current( NULL, NULL, NULL ); + } + + return GL_TRUE; +} + + +/* + * Enable this to trace calls to various Glide functions. + */ +/*#define DEBUG_TRAP*/ +#ifdef DEBUG_TRAP +static void (*real_grDrawTriangle)( const void *a, const void *b, const void *c ); +static void (*real_grDrawPoint)( const void *a ); +static void (*real_grDrawVertexArray)(FxU32 mode, FxU32 Count, void *pointers); +static void (*real_grDrawVertexArrayContiguous)(FxU32 mode, FxU32 Count, + void *pointers, FxU32 stride); +static void (*real_grClipWindow)( FxU32 minx, FxU32 miny, FxU32 maxx, FxU32 maxy ); + +static void (*real_grVertexLayout)(FxU32 param, FxI32 offset, FxU32 mode); +static void (*real_grGlideGetVertexLayout)( void *layout ); +static void (*real_grGlideSetVertexLayout)( const void *layout ); + +static void (*real_grTexDownloadMipMapLevel)( GrChipID_t tmu, + FxU32 startAddress, + GrLOD_t thisLod, + GrLOD_t largeLod, + GrAspectRatio_t aspectRatio, + GrTextureFormat_t format, + FxU32 evenOdd, + void *data ); + + +static void debug_grDrawTriangle( const void *a, const void *b, const void *c ) +{ + printf("%s\n", __FUNCTION__); + (*real_grDrawTriangle)(a, b, c); +} + +static void debug_grDrawPoint( const void *a ) +{ + const float *f = (const float *) a; + printf("%s %g %g\n", __FUNCTION__, f[0], f[1]); + (*real_grDrawPoint)(a); +} + +static void debug_grDrawVertexArray(FxU32 mode, FxU32 Count, void *pointers) +{ + printf("%s count=%d\n", __FUNCTION__, (int) Count); + (*real_grDrawVertexArray)(mode, Count, pointers); +} + +static void debug_grDrawVertexArrayContiguous(FxU32 mode, FxU32 Count, + void *pointers, FxU32 stride) +{ + printf("%s mode=0x%x count=%d\n", __FUNCTION__, (int) mode, (int) Count); + (*real_grDrawVertexArrayContiguous)(mode, Count, pointers, stride); +} + +static void debug_grClipWindow( FxU32 minx, FxU32 miny, FxU32 maxx, FxU32 maxy ) +{ + printf("%s %d,%d .. %d,%d\n", __FUNCTION__, + (int) minx, (int) miny, (int) maxx, (int) maxy); + (*real_grClipWindow)(minx, miny, maxx, maxy); +} + +static void debug_grVertexLayout(FxU32 param, FxI32 offset, FxU32 mode) +{ + (*real_grVertexLayout)(param, offset, mode); +} + +static void debug_grGlideGetVertexLayout( void *layout ) +{ + (*real_grGlideGetVertexLayout)(layout); +} + +static void debug_grGlideSetVertexLayout( const void *layout ) +{ + (*real_grGlideSetVertexLayout)(layout); +} + +static void debug_grTexDownloadMipMapLevel( GrChipID_t tmu, + FxU32 startAddress, + GrLOD_t thisLod, + GrLOD_t largeLod, + GrAspectRatio_t aspectRatio, + GrTextureFormat_t format, + FxU32 evenOdd, + void *data ) +{ + (*real_grTexDownloadMipMapLevel)(tmu, startAddress, thisLod, largeLod, + aspectRatio, format, evenOdd, data); +} + +#endif + + +/* + * Examine the context's deviceID to determine what kind of 3dfx hardware + * is installed. dlopen() the appropriate Glide library and initialize + * this context's Glide function pointers. + * Return: true/false = success/failure + */ +GLboolean tdfxInitGlide(tdfxContextPtr tmesa) +{ + static const char *defaultGlide = "libglide3.so"; + const char *libName; + void *libHandle; + + /* + * XXX this code which selects a Glide library filename given the + * deviceID may need to be cleaned up a bit. + * Non-Linux systems may have different filenames, for example. + */ + switch (tmesa->fxScreen->deviceID) { + case PCI_CHIP_BANSHEE: + case PCI_CHIP_VOODOO3: + libName = "libglide3-v3.so"; + break; + case PCI_CHIP_VOODOO5: /* same as PCI_CHIP_VOODOO4 */ + libName = "libglide3-v5.so"; + break; + default: + { + __driUtilMessage("unrecognized 3dfx deviceID: 0x%x", + tmesa->fxScreen->deviceID); + } + return GL_FALSE; + } + + libHandle = dlopen(libName, RTLD_NOW); + if (!libHandle) { + /* The device-specific Glide library filename didn't work, try the + * old, generic libglide3.so library. + */ + libHandle = dlopen(defaultGlide, RTLD_NOW); + if (!libHandle) { + __driUtilMessage( + "can't find Glide library, dlopen(%s) and dlopen(%s) both failed.", + libName, defaultGlide); + __driUtilMessage("dlerror() message: %s", dlerror()); + return GL_FALSE; + } + libName = defaultGlide; + } + + { + const char *env = getenv("LIBGL_DEBUG"); + if (env && strstr(env, "verbose")) { + fprintf(stderr, "libGL: using Glide library %s\n", libName); + } + } + +#define GET_FUNCTION(PTR, NAME) \ + tmesa->Glide.PTR = dlsym(libHandle, NAME); \ + if (!tmesa->Glide.PTR) { \ + __driUtilMessage("couldn't find Glide function %s in %s.", \ + NAME, libName); \ + } + + GET_FUNCTION(grDrawPoint, "grDrawPoint"); + GET_FUNCTION(grDrawLine, "grDrawLine"); + GET_FUNCTION(grDrawTriangle, "grDrawTriangle"); + GET_FUNCTION(grVertexLayout, "grVertexLayout"); + GET_FUNCTION(grDrawVertexArray, "grDrawVertexArray"); + GET_FUNCTION(grDrawVertexArrayContiguous, "grDrawVertexArrayContiguous"); + GET_FUNCTION(grBufferClear, "grBufferClear"); + /*GET_FUNCTION(grBufferSwap, "grBufferSwap");*/ + GET_FUNCTION(grRenderBuffer, "grRenderBuffer"); + GET_FUNCTION(grErrorSetCallback, "grErrorSetCallback"); + GET_FUNCTION(grFinish, "grFinish"); + GET_FUNCTION(grFlush, "grFlush"); + GET_FUNCTION(grSstWinOpen, "grSstWinOpen"); + GET_FUNCTION(grSstWinClose, "grSstWinClose"); +#if 0 + /* Not in V3 lib, and not used anyway. */ + GET_FUNCTION(grSetNumPendingBuffers, "grSetNumPendingBuffers"); +#endif + GET_FUNCTION(grSelectContext, "grSelectContext"); + GET_FUNCTION(grSstOrigin, "grSstOrigin"); + GET_FUNCTION(grSstSelect, "grSstSelect"); + GET_FUNCTION(grAlphaBlendFunction, "grAlphaBlendFunction"); + GET_FUNCTION(grAlphaCombine, "grAlphaCombine"); + GET_FUNCTION(grAlphaControlsITRGBLighting, "grAlphaControlsITRGBLighting"); + GET_FUNCTION(grAlphaTestFunction, "grAlphaTestFunction"); + GET_FUNCTION(grAlphaTestReferenceValue, "grAlphaTestReferenceValue"); + GET_FUNCTION(grChromakeyMode, "grChromakeyMode"); + GET_FUNCTION(grChromakeyValue, "grChromakeyValue"); + GET_FUNCTION(grClipWindow, "grClipWindow"); + GET_FUNCTION(grColorCombine, "grColorCombine"); + GET_FUNCTION(grColorMask, "grColorMask"); + GET_FUNCTION(grCullMode, "grCullMode"); + GET_FUNCTION(grConstantColorValue, "grConstantColorValue"); + GET_FUNCTION(grDepthBiasLevel, "grDepthBiasLevel"); + GET_FUNCTION(grDepthBufferFunction, "grDepthBufferFunction"); + GET_FUNCTION(grDepthBufferMode, "grDepthBufferMode"); + GET_FUNCTION(grDepthMask, "grDepthMask"); + GET_FUNCTION(grDisableAllEffects, "grDisableAllEffects"); + GET_FUNCTION(grDitherMode, "grDitherMode"); + GET_FUNCTION(grFogColorValue, "grFogColorValue"); + GET_FUNCTION(grFogMode, "grFogMode"); + GET_FUNCTION(grFogTable, "grFogTable"); + GET_FUNCTION(grLoadGammaTable, "grLoadGammaTable"); + GET_FUNCTION(grSplash, "grSplash"); + GET_FUNCTION(grGet, "grGet"); + GET_FUNCTION(grGetString, "grGetString"); + GET_FUNCTION(grQueryResolutions, "grQueryResolutions"); + GET_FUNCTION(grReset, "grReset"); + GET_FUNCTION(grGetProcAddress, "grGetProcAddress"); + GET_FUNCTION(grEnable, "grEnable"); + GET_FUNCTION(grDisable, "grDisable"); + GET_FUNCTION(grCoordinateSpace, "grCoordinateSpace"); + GET_FUNCTION(grDepthRange, "grDepthRange"); + GET_FUNCTION(grStippleMode, "grStippleMode"); + GET_FUNCTION(grStipplePattern, "grStipplePattern"); + GET_FUNCTION(grViewport, "grViewport"); + GET_FUNCTION(grTexCalcMemRequired, "grTexCalcMemRequired"); + GET_FUNCTION(grTexTextureMemRequired, "grTexTextureMemRequired"); + GET_FUNCTION(grTexMinAddress, "grTexMinAddress"); + GET_FUNCTION(grTexMaxAddress, "grTexMaxAddress"); + GET_FUNCTION(grTexNCCTable, "grTexNCCTable"); + GET_FUNCTION(grTexSource, "grTexSource"); + GET_FUNCTION(grTexClampMode, "grTexClampMode"); + GET_FUNCTION(grTexCombine, "grTexCombine"); + GET_FUNCTION(grTexDetailControl, "grTexDetailControl"); + GET_FUNCTION(grTexFilterMode, "grTexFilterMode"); + GET_FUNCTION(grTexLodBiasValue, "grTexLodBiasValue"); + GET_FUNCTION(grTexDownloadMipMap, "grTexDownloadMipMap"); + GET_FUNCTION(grTexDownloadMipMapLevel, "grTexDownloadMipMapLevel"); + GET_FUNCTION(grTexDownloadMipMapLevelPartial, "grTexDownloadMipMapLevelPartial"); + GET_FUNCTION(grTexDownloadTable, "grTexDownloadTable"); + GET_FUNCTION(grTexDownloadTablePartial, "grTexDownloadTablePartial"); + GET_FUNCTION(grTexMipMapMode, "grTexMipMapMode"); + GET_FUNCTION(grTexMultibase, "grTexMultibase"); + GET_FUNCTION(grTexMultibaseAddress, "grTexMultibaseAddress"); + GET_FUNCTION(grLfbLock, "grLfbLock"); + GET_FUNCTION(grLfbUnlock, "grLfbUnlock"); + GET_FUNCTION(grLfbConstantAlpha, "grLfbConstantAlpha"); + GET_FUNCTION(grLfbConstantDepth, "grLfbConstantDepth"); + GET_FUNCTION(grLfbWriteColorSwizzle, "grLfbWriteColorSwizzle"); + GET_FUNCTION(grLfbWriteColorFormat, "grLfbWriteColorFormat"); + GET_FUNCTION(grLfbWriteRegion, "grLfbWriteRegion"); + GET_FUNCTION(grLfbReadRegion, "grLfbReadRegion"); + GET_FUNCTION(grGlideInit, "grGlideInit"); + GET_FUNCTION(grGlideShutdown, "grGlideShutdown"); + GET_FUNCTION(grGlideGetState, "grGlideGetState"); + GET_FUNCTION(grGlideSetState, "grGlideSetState"); + GET_FUNCTION(grGlideGetVertexLayout, "grGlideGetVertexLayout"); + GET_FUNCTION(grGlideSetVertexLayout, "grGlideSetVertexLayout"); + + /* Glide utility functions */ + GET_FUNCTION(guFogGenerateExp, "guFogGenerateExp"); + GET_FUNCTION(guFogGenerateExp2, "guFogGenerateExp2"); + GET_FUNCTION(guFogGenerateLinear, "guFogGenerateLinear"); + + /* DRI functions */ + GET_FUNCTION(grDRIOpen, "grDRIOpen"); + GET_FUNCTION(grDRIPosition, "grDRIPosition"); + /*GET_FUNCTION(grDRILostContext, "grDRILostContext");*/ + GET_FUNCTION(grDRIImportFifo, "grDRIImportFifo"); + GET_FUNCTION(grDRIInvalidateAll, "grDRIInvalidateAll"); + GET_FUNCTION(grDRIResetSAREA, "grDRIResetSAREA"); + GET_FUNCTION(grDRIBufferSwap, "grDRIBufferSwap"); + + /* + * Extension functions: + * Just use dlysm() because we want a NULL pointer if the function is + * not found. + */ + /* PIXEXT extension */ + tmesa->Glide.grStencilFunc = dlsym(libHandle, "grStencilFunc"); + tmesa->Glide.grStencilMask = dlsym(libHandle, "grStencilMask"); + tmesa->Glide.grStencilOp = dlsym(libHandle, "grStencilOp"); + tmesa->Glide.grBufferClearExt = dlsym(libHandle, "grBufferClearExt"); + tmesa->Glide.grColorMaskExt = dlsym(libHandle, "grColorMaskExt"); + /* COMBINE extension */ + tmesa->Glide.grColorCombineExt = dlsym(libHandle, "grColorCombineExt"); + tmesa->Glide.grTexColorCombineExt = dlsym(libHandle, "grTexColorCombineExt"); + tmesa->Glide.grAlphaCombineExt = dlsym(libHandle, "grAlphaCombineExt"); + tmesa->Glide.grTexAlphaCombineExt = dlsym(libHandle, "grTexAlphaCombineExt"); + tmesa->Glide.grAlphaBlendFunctionExt = dlsym(libHandle, "grAlphaBlendFunctionExt"); + tmesa->Glide.grConstantColorValueExt = dlsym(libHandle, "grConstantColorValueExt"); + /* Texus 2 */ + tmesa->Glide.txImgQuantize = dlsym(libHandle, "txImgQuantize"); + tmesa->Glide.txImgDequantizeFXT1 = dlsym(libHandle, "_txImgDequantizeFXT1"); + tmesa->Glide.txErrorSetCallback = dlsym(libHandle, "txErrorSetCallback"); + +#ifdef DEBUG_TRAP + /* wrap the drawing functions so we can trap them */ + real_grDrawTriangle = tmesa->Glide.grDrawTriangle; + tmesa->Glide.grDrawTriangle = debug_grDrawTriangle; + + real_grDrawPoint = tmesa->Glide.grDrawPoint; + tmesa->Glide.grDrawPoint = debug_grDrawPoint; + + real_grDrawVertexArray = tmesa->Glide.grDrawVertexArray; + tmesa->Glide.grDrawVertexArray = debug_grDrawVertexArray; + + real_grDrawVertexArrayContiguous = tmesa->Glide.grDrawVertexArrayContiguous; + tmesa->Glide.grDrawVertexArrayContiguous = debug_grDrawVertexArrayContiguous; + + real_grClipWindow = tmesa->Glide.grClipWindow; + tmesa->Glide.grClipWindow = debug_grClipWindow; + + real_grVertexLayout = tmesa->Glide.grVertexLayout; + tmesa->Glide.grVertexLayout = debug_grVertexLayout; + + real_grGlideGetVertexLayout = tmesa->Glide.grGlideGetVertexLayout; + tmesa->Glide.grGlideGetVertexLayout = debug_grGlideGetVertexLayout; + + real_grGlideSetVertexLayout = tmesa->Glide.grGlideSetVertexLayout; + tmesa->Glide.grGlideSetVertexLayout = debug_grGlideSetVertexLayout; + + real_grTexDownloadMipMapLevel = tmesa->Glide.grTexDownloadMipMapLevel; + tmesa->Glide.grTexDownloadMipMapLevel = debug_grTexDownloadMipMapLevel; + +#endif + return GL_TRUE; +} |