diff options
Diffstat (limited to 'src/mesa/drivers/dri/i810/i810context.c')
| -rw-r--r-- | src/mesa/drivers/dri/i810/i810context.c | 532 |
1 files changed, 532 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i810/i810context.c b/src/mesa/drivers/dri/i810/i810context.c new file mode 100644 index 00000000000..da1764cefad --- /dev/null +++ b/src/mesa/drivers/dri/i810/i810context.c @@ -0,0 +1,532 @@ +/************************************************************************** + +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/i810/i810context.c,v 1.3 2002/10/30 12:51:33 alanh Exp $ */ + +/* + * Authors: + * Keith Whitwell <[email protected]> + * + */ + + +#include "glheader.h" +#include "context.h" +#include "matrix.h" +#include "simple_list.h" +#include "extensions.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 "i810screen.h" +#include "i810_dri.h" + +#include "i810state.h" +#include "i810tex.h" +#include "i810span.h" +#include "i810tris.h" +#include "i810vb.h" +#include "i810ioctl.h" + +#include "utils.h" +#ifndef I810_DEBUG +int I810_DEBUG = (0); +#endif + +static const GLubyte *i810GetString( GLcontext *ctx, GLenum name ) +{ + switch (name) { + case GL_VENDOR: + return (GLubyte *)"Keith Whitwell"; + case GL_RENDERER: + return (GLubyte *)"Mesa DRI I810 20021125"; + default: + return 0; + } +} + +static void i810BufferSize(GLframebuffer *buffer, GLuint *width, GLuint *height) +{ + GET_CURRENT_CONTEXT(ctx); + i810ContextPtr imesa = I810_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 i810 driver. + */ +static const char * const card_extensions[] = +{ + "GL_ARB_multitexture", + "GL_ARB_texture_env_add", + "GL_ARB_texture_mirrored_repeat", + "GL_EXT_stencil_wrap", + "GL_EXT_texture_edge_clamp", + "GL_EXT_texture_env_add", + "GL_EXT_texture_lod_bias", + "GL_IBM_texture_mirrored_repeat", + "GL_MESA_ycbcr_texture", + "GL_SGIS_generate_mipmap", + "GL_SGIS_texture_edge_clamp", + NULL +}; + +extern const struct gl_pipeline_stage _i810_render_stage; + +static const struct gl_pipeline_stage *i810_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 + &_i810_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 +i810CreateContext( const __GLcontextModes *mesaVis, + __DRIcontextPrivate *driContextPriv, + void *sharedContextPrivate ) +{ + GLcontext *ctx, *shareCtx; + i810ContextPtr imesa; + __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv; + i810ScreenPrivate *i810Screen = (i810ScreenPrivate *)sPriv->private; + I810SAREAPtr saPriv = (I810SAREAPtr) + (((GLubyte *)sPriv->pSAREA) + i810Screen->sarea_priv_offset); + + /* Allocate i810 context */ + imesa = (i810ContextPtr) CALLOC_STRUCT(i810_context_t); + if (!imesa) { + return GL_FALSE; + } + + /* Allocate the Mesa context */ + if (sharedContextPrivate) + shareCtx = ((i810ContextPtr) sharedContextPrivate)->glCtx; + else + shareCtx = NULL; + imesa->glCtx = _mesa_create_context(mesaVis, shareCtx, (void*) imesa, GL_TRUE); + if (!imesa->glCtx) { + FREE(imesa); + return GL_FALSE; + } + driContextPriv->driverPrivate = imesa; + + imesa->i810Screen = i810Screen; + imesa->driScreen = sPriv; + imesa->sarea = saPriv; + imesa->glBuffer = NULL; + + (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, + i810Screen->textureSize, + 12, + I810_NR_TEX_REGIONS, + imesa->sarea->texList, + & imesa->sarea->texAge, + & imesa->swapped, + sizeof( struct i810_texture_object_t ), + (destroy_texture_object_t *) i810DestroyTexObj ); + + + + /* Set the maximum texture size small enough that we can guarentee + * that both texture units can bind a maximal texture and have them + * in memory at once. + */ + + + + ctx = imesa->glCtx; + ctx->Const.MaxTextureUnits = 2; + + + /* FIXME: driCalcualteMaxTextureLevels 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.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 = 3.0; + ctx->Const.MaxPointSizeAA = 3.0; + ctx->Const.PointSizeGranularity = 1.0; + + ctx->Driver.GetBufferSize = i810BufferSize; + ctx->Driver.ResizeBuffers = _swrast_alloc_buffers; + ctx->Driver.GetString = i810GetString; + + /* 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, i810_pipeline ); + + /* Configure swrast to match hardware characteristics: + */ + _swrast_allow_pixel_fog( ctx, GL_FALSE ); + _swrast_allow_vertex_fog( ctx, GL_TRUE ); + + /* Dri stuff + */ + imesa->hHWContext = driContextPriv->hHWContext; + imesa->driFd = sPriv->fd; + imesa->driHwLock = &sPriv->pSAREA->lock; + + imesa->stipple_in_hw = 1; + imesa->RenderIndex = ~0; + imesa->dirty = I810_UPLOAD_CTX|I810_UPLOAD_BUFFERS; + imesa->upload_cliprects = GL_TRUE; + + imesa->CurrentTexObj[0] = 0; + imesa->CurrentTexObj[1] = 0; + + _math_matrix_ctr( &imesa->ViewportMatrix ); + + driInitExtensions( ctx, card_extensions, GL_TRUE ); + i810InitStateFuncs( ctx ); + i810InitTextureFuncs( ctx ); + i810InitTriFuncs( ctx ); + i810InitSpanFuncs( ctx ); + i810InitIoctlFuncs( ctx ); + i810InitVB( ctx ); + i810InitState( ctx ); + +#if DO_DEBUG + I810_DEBUG = driParseDebugString( getenv( "I810_DEBUG" ), + debug_control ); + I810_DEBUG |= driParseDebugString( getenv( "INTEL_DEBUG" ), + debug_control ); +#endif + + return GL_TRUE; +} + +void +i810DestroyContext(__DRIcontextPrivate *driContextPriv) +{ + i810ContextPtr imesa = (i810ContextPtr) 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 ); + + i810FreeVB( 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; + + assert( is_empty_list( & imesa->swapped ) ); + + for ( i = 0 ; i < imesa->nr_heaps ; i++ ) { + driDestroyTextureHeap( imesa->texture_heaps[ i ] ); + imesa->texture_heaps[ i ] = NULL; + } + } + + Xfree(imesa); + } +} + + +void i810XMesaSetFrontClipRects( i810ContextPtr imesa ) +{ + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + + imesa->numClipRects = dPriv->numClipRects; + imesa->pClipRects = dPriv->pClipRects; + imesa->drawX = dPriv->x; + imesa->drawY = dPriv->y; + + i810EmitDrawingRectangle( imesa ); + imesa->upload_cliprects = GL_TRUE; +} + + +void i810XMesaSetBackClipRects( i810ContextPtr 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; + } + + i810EmitDrawingRectangle( imesa ); + imesa->upload_cliprects = GL_TRUE; +} + + +static void i810XMesaWindowMoved( i810ContextPtr imesa ) +{ + switch (imesa->glCtx->Color._DrawDestMask) { + case FRONT_LEFT_BIT: + i810XMesaSetFrontClipRects( imesa ); + break; + case BACK_LEFT_BIT: + i810XMesaSetBackClipRects( imesa ); + break; + case GL_FRONT_LEFT: + default: + /* glDrawBuffer(GL_NONE or GL_FRONT_AND_BACK): software fallback */ + i810XMesaSetFrontClipRects( imesa ); + } +} + + +GLboolean +i810UnbindContext(__DRIcontextPrivate *driContextPriv) +{ + i810ContextPtr imesa = (i810ContextPtr) driContextPriv->driverPrivate; + if (imesa) { + imesa->dirty = I810_UPLOAD_CTX|I810_UPLOAD_BUFFERS; + if (imesa->CurrentTexObj[0]) imesa->dirty |= I810_UPLOAD_TEX0; + if (imesa->CurrentTexObj[1]) imesa->dirty |= I810_UPLOAD_TEX1; + } + + return GL_TRUE; +} + + +GLboolean +i810MakeCurrent(__DRIcontextPrivate *driContextPriv, + __DRIdrawablePrivate *driDrawPriv, + __DRIdrawablePrivate *driReadPriv) +{ + if (driContextPriv) { + i810ContextPtr imesa = (i810ContextPtr) driContextPriv->driverPrivate; + + /* Shouldn't the readbuffer be stored also? + */ + imesa->driDrawable = driDrawPriv; + + _mesa_make_current2(imesa->glCtx, + (GLframebuffer *) driDrawPriv->driverPrivate, + (GLframebuffer *) driReadPriv->driverPrivate); + + /* Are these necessary? + */ + i810XMesaWindowMoved( imesa ); + if (!imesa->glCtx->Viewport.Width) + _mesa_set_viewport(imesa->glCtx, 0, 0, + driDrawPriv->w, driDrawPriv->h); + } + else { + _mesa_make_current(0,0); + } + + return GL_TRUE; +} + +static void +i810UpdatePageFlipping( i810ContextPtr imesa ) +{ + GLcontext *ctx = imesa->glCtx; + int front = 0; + + switch (ctx->Color._DrawDestMask) { + case FRONT_LEFT_BIT: + front = 1; + break; + case BACK_LEFT_BIT: + front = 0; + break; + default: + return; + } + + if ( imesa->sarea->pf_current_page == 1 ) + front ^= 1; + + if (front) { + imesa->BufferSetup[I810_DESTREG_DI1] = imesa->i810Screen->fbOffset | imesa->i810Screen->backPitchBits; + imesa->drawMap = (char *)imesa->driScreen->pFB; + imesa->readMap = (char *)imesa->driScreen->pFB; + } else { + imesa->BufferSetup[I810_DESTREG_DI1] = imesa->i810Screen->backOffset | imesa->i810Screen->backPitchBits; + imesa->drawMap = imesa->i810Screen->back.map; + imesa->readMap = imesa->i810Screen->back.map; + } + + imesa->dirty |= I810_UPLOAD_BUFFERS; +} + +void i810GetLock( i810ContextPtr imesa, GLuint flags ) +{ + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + __DRIscreenPrivate *sPriv = imesa->driScreen; + I810SAREAPtr 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 = I810_UPLOAD_CTX|I810_UPLOAD_BUFFERS; + if (imesa->CurrentTexObj[0]) imesa->dirty |= I810_UPLOAD_TEX0; + if (imesa->CurrentTexObj[1]) imesa->dirty |= I810_UPLOAD_TEX1; + 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) { + i810UpdatePageFlipping( imesa ); + i810XMesaWindowMoved( imesa ); + imesa->lastStamp = dPriv->lastStamp; + } +} + + +void +i810SwapBuffers( __DRIdrawablePrivate *dPriv ) +{ + if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { + i810ContextPtr imesa; + GLcontext *ctx; + imesa = (i810ContextPtr) dPriv->driContextPriv->driverPrivate; + ctx = imesa->glCtx; + if (ctx->Visual.doubleBufferMode) { + _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */ + if ( imesa->sarea->pf_active ) { + i810PageFlip( dPriv ); + } else { + i810CopyBuffer( dPriv ); + } + } + } + else { + /* XXX this shouldn't be an error but we can't handle it for now */ + _mesa_problem(NULL, "i810SwapBuffers: drawable has no context!\n"); + } +} + |