diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_context.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_context.c | 626 |
1 files changed, 626 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_context.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_context.c new file mode 100644 index 000000000..45fcbd2e3 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_context.c @@ -0,0 +1,626 @@ +/************************************************************************** + * + * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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. + * + * **************************************************************************/ +/* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_context.c,v 1.9 2003/02/06 04:18:00 dawes Exp $ */ + +/** + * \file i830_context.c + * + * Heavily Based on I810 driver written by Keith Whitwell. + * + * \author Jeff Hartmann <jhartmann@2d3d.com> + * \author Graeme Fisher <graeme@2d3d.co.za> + * \author Abraham vd Merwe <abraham@2d3d.co.za> + * \author Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "glheader.h" +#include "context.h" +#include "matrix.h" +#include "simple_list.h" +#include "extensions.h" +#include "framebuffer.h" +#include "imports.h" + +#include "swrast/swrast.h" +#include "swrast_setup/swrast_setup.h" +#include "tnl/tnl.h" +#include "array_cache/acache.h" + +#include "tnl/t_pipeline.h" + +#include "drivers/common/driverfuncs.h" + +#include "i830_screen.h" +#include "i830_dri.h" + +#include "i830_state.h" +#include "i830_tex.h" +#include "i830_span.h" +#include "i830_tris.h" +#include "i830_ioctl.h" + + +#include "utils.h" + +#define need_GL_ARB_multisample +#define need_GL_ARB_texture_compression +#define need_GL_EXT_blend_color +#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_secondary_color +#include "extension_helper.h" + +#include "xmlpool.h" /* for symbolic values of enum-type options */ +#ifndef I830_DEBUG +int I830_DEBUG = (0); +#endif + +/*************************************** + * Mesa's Driver Functions + ***************************************/ + +#define DRIVER_DATE "20041007" + + +static const GLubyte *i830DDGetString( GLcontext *ctx, GLenum name ) +{ + const char * chipset; + static char buffer[128]; + + switch (name) { + case GL_VENDOR: + switch (I830_CONTEXT(ctx)->i830Screen->deviceID) { + case PCI_CHIP_845_G: + return (GLubyte *)"2d3D, Inc"; + + case PCI_CHIP_I830_M: + return (GLubyte *)"VA Linux, Inc"; + + case PCI_CHIP_I855_GM: + case PCI_CHIP_I865_G: + default: + return (GLubyte *)"Tungsten Graphics, Inc"; + } + break; + + case GL_RENDERER: + switch (I830_CONTEXT(ctx)->i830Screen->deviceID) { + case PCI_CHIP_845_G: + chipset = "Intel(R) 845G"; break; + case PCI_CHIP_I830_M: + chipset = "Intel(R) 830M"; break; + case PCI_CHIP_I855_GM: + chipset = "Intel(R) 852GM/855GM"; break; + case PCI_CHIP_I865_G: + chipset = "Intel(R) 865G"; break; + default: + chipset = "Unknown Intel Chipset"; break; + } + + (void) driGetRendererString( buffer, chipset, DRIVER_DATE, 0 ); + return (GLubyte *) buffer; + + default: + return NULL; + } +} + +static void i830BufferSize(GLframebuffer *buffer, + GLuint *width, GLuint *height) +{ + GET_CURRENT_CONTEXT(ctx); + i830ContextPtr imesa = I830_CONTEXT(ctx); + /* Need to lock to make sure the driDrawable is uptodate. This + * information is used to resize Mesa's software buffers, so it has + * to be correct. + */ + LOCK_HARDWARE(imesa); + *width = imesa->driDrawable->w; + *height = imesa->driDrawable->h; + UNLOCK_HARDWARE(imesa); +} + + +/* Extension strings exported by the i830 driver. + */ +const struct dri_extension card_extensions[] = +{ + { "GL_ARB_multisample", GL_ARB_multisample_functions }, + { "GL_ARB_multitexture", NULL }, + { "GL_ARB_texture_border_clamp", NULL }, + { "GL_ARB_texture_compression", GL_ARB_texture_compression_functions }, + { "GL_ARB_texture_env_add", NULL }, + { "GL_ARB_texture_env_combine", NULL }, + { "GL_ARB_texture_env_crossbar", NULL }, + { "GL_ARB_texture_env_dot3", NULL }, + { "GL_ARB_texture_mirrored_repeat", NULL }, + { "GL_EXT_blend_color", GL_EXT_blend_color_functions }, + { "GL_EXT_blend_equation_separate", GL_EXT_blend_equation_separate_functions }, + { "GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions }, + { "GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions }, + { "GL_EXT_blend_subtract", NULL }, + { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions }, + { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions }, + { "GL_EXT_stencil_wrap", NULL }, + { "GL_EXT_texture_edge_clamp", NULL }, + { "GL_EXT_texture_env_combine", NULL }, + { "GL_EXT_texture_env_dot3", NULL }, + { "GL_EXT_texture_filter_anisotropic", NULL }, + { "GL_EXT_texture_lod_bias", NULL }, + { "GL_EXT_texture_rectangle", NULL }, + { "GL_MESA_ycbcr_texture", NULL }, + { "GL_NV_blend_square", NULL }, + { "GL_SGIS_generate_mipmap", NULL }, + { NULL, NULL } +}; + + +extern const struct tnl_pipeline_stage _i830_render_stage; + +static const struct tnl_pipeline_stage *i830_pipeline[] = { + &_tnl_vertex_transform_stage, + &_tnl_normal_transform_stage, + &_tnl_lighting_stage, + &_tnl_fog_coordinate_stage, + &_tnl_texgen_stage, + &_tnl_texture_transform_stage, + /* REMOVE: point attenuation stage */ +#if 1 + &_i830_render_stage, /* ADD: unclipped rastersetup-to-dma */ +#endif + &_tnl_render_stage, + 0, +}; + + +static const struct dri_debug_control debug_control[] = +{ + { "fall", DEBUG_FALLBACKS }, + { "tex", DEBUG_TEXTURE }, + { "ioctl", DEBUG_IOCTL }, + { "prim", DEBUG_PRIMS }, + { "vert", DEBUG_VERTS }, + { "state", DEBUG_STATE }, + { "verb", DEBUG_VERBOSE }, + { "dri", DEBUG_DRI }, + { "dma", DEBUG_DMA }, + { "san", DEBUG_SANITY }, + { "sync", DEBUG_SYNC }, + { "sleep", DEBUG_SLEEP }, + { NULL, 0 } +}; + + +GLboolean i830CreateContext( const __GLcontextModes *mesaVis, + __DRIcontextPrivate *driContextPriv, + void *sharedContextPrivate) +{ + GLcontext *ctx , *shareCtx; + i830ContextPtr imesa; + __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv; + i830ScreenPrivate *screen = (i830ScreenPrivate *)sPriv->private; + I830SAREAPtr saPriv=(I830SAREAPtr) + (((GLubyte *)sPriv->pSAREA)+screen->sarea_priv_offset); + struct dd_function_table functions; + + /* Allocate i830 context */ + imesa = (i830ContextPtr) CALLOC_STRUCT(i830_context_t); + if (!imesa) + return GL_FALSE; + + /* Init default driver functions then plug in our I830-specific functions + * (the texture functions are especially important) + */ + _mesa_init_driver_functions(&functions); + i830InitIoctlFuncs(&functions); + i830InitTextureFuncs(&functions); + + /* Allocate the Mesa context */ + if (sharedContextPrivate) + shareCtx = ((i830ContextPtr) sharedContextPrivate)->glCtx; + else + shareCtx = NULL; + imesa->glCtx = _mesa_create_context(mesaVis, shareCtx, + &functions, (void*) imesa); + if (!imesa->glCtx) { + FREE(imesa); + return GL_FALSE; + } + driContextPriv->driverPrivate = imesa; + + + imesa->i830Screen = screen; + imesa->driScreen = sPriv; + imesa->sarea = saPriv; + imesa->glBuffer = NULL; + + driParseConfigFiles (&imesa->optionCache, &screen->optionCache, + screen->driScrnPriv->myNum, "i830"); + + (void) memset( imesa->texture_heaps, 0, sizeof( imesa->texture_heaps ) ); + make_empty_list( & imesa->swapped ); + + imesa->nr_heaps = 1; + imesa->texture_heaps[0] = driCreateTextureHeap( 0, imesa, + screen->textureSize, + 12, + I830_NR_TEX_REGIONS, + imesa->sarea->texList, + (unsigned *) & imesa->sarea->texAge, /* XXX shouldn't need cast! */ + & imesa->swapped, + sizeof( struct i830_texture_object_t ), + (destroy_texture_object_t *) i830DestroyTexObj ); + + /* Set the maximum texture size small enough that we can guarantee + * that every texture unit can bind a maximal texture and have them + * in memory at once. + */ + + ctx = imesa->glCtx; + ctx->Const.MaxTextureUnits = driQueryOptioni(&imesa->optionCache, + "texture_units"); + ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits; + ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits; + + /* FIXME: driCalculateMaxTextureLevels assumes that mipmaps are tightly + * FIXME: packed, but they're not in Intel graphics hardware. + */ + driCalculateMaxTextureLevels( imesa->texture_heaps, + imesa->nr_heaps, + & ctx->Const, + 4, + 11, /* max 2D texture size is 2048x2048 */ + 0, /* 3D textures unsupported */ + 0, /* cube textures unsupported. */ + 0, /* texture rectangles unsupported. */ + 12, + GL_FALSE ); + + ctx->Const.MaxTextureMaxAnisotropy = 2.0; + + ctx->Const.MinLineWidth = 1.0; + ctx->Const.MinLineWidthAA = 1.0; + ctx->Const.MaxLineWidth = 3.0; + ctx->Const.MaxLineWidthAA = 3.0; + ctx->Const.LineWidthGranularity = 1.0; + + ctx->Const.MinPointSize = 1.0; + ctx->Const.MinPointSizeAA = 1.0; + ctx->Const.MaxPointSize = 255.0; + ctx->Const.MaxPointSizeAA = 3.0; + ctx->Const.PointSizeGranularity = 1.0; + + ctx->Driver.GetBufferSize = i830BufferSize; + ctx->Driver.ResizeBuffers = _mesa_resize_framebuffer; + ctx->Driver.GetString = i830DDGetString; + + /* Who owns who? */ + ctx->DriverCtx = (void *) imesa; + imesa->glCtx = ctx; + + /* Initialize the software rasterizer and helper modules. */ + _swrast_CreateContext( ctx ); + _ac_CreateContext( ctx ); + _tnl_CreateContext( ctx ); + _swsetup_CreateContext( ctx ); + + /* Install the customized pipeline: */ + _tnl_destroy_pipeline( ctx ); + _tnl_install_pipeline( ctx, i830_pipeline ); + + /* Configure swrast and T&L to match hardware characteristics: */ + _swrast_allow_pixel_fog( ctx, GL_FALSE ); + _swrast_allow_vertex_fog( ctx, GL_TRUE ); + _tnl_allow_pixel_fog( ctx, GL_FALSE ); + _tnl_allow_vertex_fog( ctx, GL_TRUE ); + + /* Dri stuff */ + imesa->hHWContext = driContextPriv->hHWContext; + imesa->driFd = sPriv->fd; + /* drmLock ptr = &drm_hw_lock_t */ + imesa->driHwLock = (drmLock *) &sPriv->pSAREA->lock; + imesa->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; + + switch(mesaVis->depthBits) { + case 16: + imesa->depth_scale = 1.0/0xffff; + imesa->depth_clear_mask = ~0; + imesa->ClearDepth = 0xffff; + break; + case 24: + imesa->depth_scale = 1.0/0xffffff; + imesa->depth_clear_mask = 0x00ffffff; + imesa->stencil_clear_mask = 0xff000000; + imesa->ClearDepth = 0x00ffffff; + break; + case 32: /* Not supported */ + default: + break; + } + /* Completely disable stenciling for now, there are some serious issues + * with stencil. + */ +#if 0 + imesa->hw_stencil = 0; +#endif + + imesa->RenderIndex = ~0; + imesa->dirty = ~0; + imesa->upload_cliprects = GL_TRUE; + + imesa->CurrentTexObj[0] = 0; + imesa->CurrentTexObj[1] = 0; + + imesa->do_irqs = (imesa->i830Screen->irq_active && + !getenv("I830_NO_IRQS")); + + _math_matrix_ctr (&imesa->ViewportMatrix); + + driInitExtensions( ctx, card_extensions, GL_TRUE ); + + if (imesa->glCtx->Mesa_DXTn) { + _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" ); + _mesa_enable_extension( ctx, "GL_S3_s3tc" ); + } + else if (driQueryOptionb (&imesa->optionCache, "force_s3tc_enable")) { + _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" ); + } + + _mesa_enable_extension( ctx, "GL_3DFX_texture_compression_FXT1" ); + + /* XXX these should really go right after _mesa_init_driver_functions() */ + i830DDInitStateFuncs( ctx ); + i830InitTriFuncs (ctx); + i830DDInitSpanFuncs( ctx ); + i830DDInitState (ctx); + +#if DO_DEBUG + I830_DEBUG = driParseDebugString( getenv( "I830_DEBUG" ), + debug_control ); + I830_DEBUG |= driParseDebugString( getenv( "INTEL_DEBUG" ), + debug_control ); +#endif + + if (getenv("I830_NO_RAST") || + getenv("INTEL_NO_RAST")) { + fprintf(stderr, "disabling 3D rasterization\n"); + FALLBACK(imesa, I830_FALLBACK_USER, 1); + } + + return GL_TRUE; +} + +void i830DestroyContext(__DRIcontextPrivate *driContextPriv) +{ + i830ContextPtr imesa = (i830ContextPtr) driContextPriv->driverPrivate; + + assert(imesa); /* should never be null */ + if (imesa) { + GLboolean release_texture_heaps; + + + release_texture_heaps = (imesa->glCtx->Shared->RefCount == 1); + _swsetup_DestroyContext (imesa->glCtx); + _tnl_DestroyContext (imesa->glCtx); + _ac_DestroyContext (imesa->glCtx); + _swrast_DestroyContext (imesa->glCtx); + + /* free the Mesa context */ + imesa->glCtx->DriverCtx = NULL; + _mesa_destroy_context(imesa->glCtx); + + if ( release_texture_heaps ) { + /* This share group is about to go away, free our private + * texture object data. + */ + int i; + + for ( i = 0 ; i < imesa->nr_heaps ; i++ ) { + driDestroyTextureHeap( imesa->texture_heaps[ i ] ); + imesa->texture_heaps[ i ] = NULL; + } + + assert( is_empty_list( & imesa->swapped ) ); + } + + FREE(imesa); + } +} + +void i830XMesaSetFrontClipRects( i830ContextPtr imesa ) +{ + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + + imesa->numClipRects = dPriv->numClipRects; + imesa->pClipRects = dPriv->pClipRects; + imesa->drawX = dPriv->x; + imesa->drawY = dPriv->y; + + i830EmitDrawingRectangle( imesa ); + imesa->upload_cliprects = GL_TRUE; +} + +void i830XMesaSetBackClipRects( i830ContextPtr imesa ) +{ + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + + if (imesa->sarea->pf_enabled == 0 && dPriv->numBackClipRects == 0) { + imesa->numClipRects = dPriv->numClipRects; + imesa->pClipRects = dPriv->pClipRects; + imesa->drawX = dPriv->x; + imesa->drawY = dPriv->y; + } else { + imesa->numClipRects = dPriv->numBackClipRects; + imesa->pClipRects = dPriv->pBackClipRects; + imesa->drawX = dPriv->backX; + imesa->drawY = dPriv->backY; + } + + i830EmitDrawingRectangle( imesa ); + imesa->upload_cliprects = GL_TRUE; +} + +static void i830XMesaWindowMoved( i830ContextPtr imesa ) +{ + switch (imesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0]) { + case BUFFER_BIT_FRONT_LEFT: + i830XMesaSetFrontClipRects( imesa ); + break; + case BUFFER_BIT_BACK_LEFT: + i830XMesaSetBackClipRects( imesa ); + break; + default: + /* glDrawBuffer(GL_NONE or GL_FRONT_AND_BACK): software fallback */ + i830XMesaSetFrontClipRects( imesa ); + } +} + +GLboolean i830UnbindContext(__DRIcontextPrivate *driContextPriv) +{ + i830ContextPtr imesa = (i830ContextPtr) driContextPriv->driverPrivate; + unsigned i; + + if (imesa) { + /* Might want to change this so texblend isn't always updated */ + imesa->dirty |= (I830_UPLOAD_CTX | + I830_UPLOAD_BUFFERS | + I830_UPLOAD_STIPPLE | + I830_UPLOAD_TEXBLEND0 | + I830_UPLOAD_TEXBLEND1 | + I830_UPLOAD_TEXBLEND2 | + I830_UPLOAD_TEXBLEND3); + + for ( i = 0 ; i < imesa->glCtx->Const.MaxTextureUnits ; i++ ) { + if (imesa->CurrentTexObj[i]) imesa->dirty |= I830_UPLOAD_TEX_N( i ); + } + } + return GL_TRUE; +} + +GLboolean i830MakeCurrent(__DRIcontextPrivate *driContextPriv, + __DRIdrawablePrivate *driDrawPriv, + __DRIdrawablePrivate *driReadPriv) +{ + + if (driContextPriv) { + i830ContextPtr imesa = (i830ContextPtr) driContextPriv->driverPrivate; + + if ( imesa->driDrawable != driDrawPriv ) { + imesa->driDrawable = driDrawPriv; + i830XMesaWindowMoved( imesa ); + imesa->mesa_drawable = driDrawPriv; + } + + imesa->driReadable = driReadPriv; + + _mesa_make_current(imesa->glCtx, + (GLframebuffer *) driDrawPriv->driverPrivate, + (GLframebuffer *) driReadPriv->driverPrivate); + } else { + _mesa_make_current(NULL, NULL, NULL); + } + + return GL_TRUE; +} + +void i830GetLock( i830ContextPtr imesa, GLuint flags ) +{ + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + __DRIscreenPrivate *sPriv = imesa->driScreen; + I830SAREAPtr sarea = imesa->sarea; + int me = imesa->hHWContext; + unsigned i; + + drmGetLock(imesa->driFd, imesa->hHWContext, flags); + + /* If the window moved, may need to set a new cliprect now. + * + * NOTE: This releases and regains the hw lock, so all state + * checking must be done *after* this call: + */ + DRI_VALIDATE_DRAWABLE_INFO( sPriv, dPriv); + + /* If we lost context, need to dump all registers to hardware. + * Note that we don't care about 2d contexts, even if they perform + * accelerated commands, so the DRI locking in the X server is even + * more broken than usual. + */ + + if (sarea->ctxOwner != me) { + imesa->upload_cliprects = GL_TRUE; + imesa->dirty |= (I830_UPLOAD_CTX | + I830_UPLOAD_BUFFERS | + I830_UPLOAD_STIPPLE); + + for ( i = 0 ; i < imesa->glCtx->Const.MaxTextureUnits ; i++ ) { + if(imesa->CurrentTexObj[i]) imesa->dirty |= I830_UPLOAD_TEX_N( i ); + if(imesa->TexBlendWordsUsed[i]) imesa->dirty |= I830_UPLOAD_TEXBLEND_N( i ); + } + + sarea->perf_boxes = imesa->perf_boxes | I830_BOX_LOST_CONTEXT; + sarea->ctxOwner = me; + } + + /* Shared texture managment - if another client has played with + * texture space, figure out which if any of our textures have been + * ejected, and update our global LRU. + */ + + for ( i = 0 ; i < imesa->nr_heaps ; i++ ) { + DRI_AGE_TEXTURES( imesa->texture_heaps[ i ] ); + } + + if (imesa->lastStamp != dPriv->lastStamp) { + i830XMesaWindowMoved( imesa ); + imesa->lastStamp = dPriv->lastStamp; + } + + sarea->last_quiescent = -1; /* just kill it for now */ +} + +void i830SwapBuffers( __DRIdrawablePrivate *dPriv ) +{ + if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { + i830ContextPtr imesa; + GLcontext *ctx; + imesa = (i830ContextPtr) dPriv->driContextPriv->driverPrivate; + ctx = imesa->glCtx; + if (ctx->Visual.doubleBufferMode) { + _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */ + if ( 0 /*imesa->doPageFlip*/ ) { /* doPageFlip is never set !!! */ + i830PageFlip( dPriv ); + } else { + i830CopyBuffer( dPriv ); + } + } + } else { + /* XXX this shouldn't be an error but we can't handle it for now */ + _mesa_problem(NULL, "%s: drawable has no context!\n", __FUNCTION__); + } +} |