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/* -*- 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;
}