| /************************************************************************** |
| |
| 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 <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 "points.h" |
| |
| #include "swrast/swrast.h" |
| #include "swrast_setup/swrast_setup.h" |
| #include "tnl/tnl.h" |
| #include "vbo/vbo.h" |
| |
| #include "tnl/t_pipeline.h" |
| |
| #include "drivers/common/driverfuncs.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 "drirenderbuffer.h" |
| #include "utils.h" |
| |
| #define need_GL_ARB_multisample |
| #define need_GL_ARB_texture_compression |
| #define need_GL_ARB_vertex_buffer_object |
| #include "extension_helper.h" |
| |
| #ifndef I810_DEBUG |
| int I810_DEBUG = (0); |
| #endif |
| |
| PUBLIC const char __driConfigOptions[] = { 0 }; |
| const GLuint __driNConfigOptions = 0; |
| |
| #define DRIVER_DATE "20050821" |
| |
| static const GLubyte *i810GetString( GLcontext *ctx, GLenum name ) |
| { |
| static char buffer[128]; |
| |
| switch (name) { |
| case GL_VENDOR: |
| return (GLubyte *)"Keith Whitwell"; |
| case GL_RENDERER: { |
| i810ContextPtr imesa = I810_CONTEXT(ctx); |
| const char * chipset; |
| |
| switch (imesa->i810Screen->deviceID) { |
| case PCI_CHIP_I810: chipset = "i810"; break; |
| case PCI_CHIP_I810_DC100: chipset = "i810 DC-100"; break; |
| case PCI_CHIP_I810_E: chipset = "i810E"; break; |
| case PCI_CHIP_I815: chipset = "i815"; break; |
| default: chipset = "Unknown i810-class Chipset"; break; |
| } |
| |
| (void) driGetRendererString( buffer, chipset, DRIVER_DATE, 0 ); |
| return (GLubyte *) buffer; |
| } |
| 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. |
| */ |
| const struct dri_extension card_extensions[] = |
| { |
| { "GL_ARB_multisample", GL_ARB_multisample_functions }, |
| { "GL_ARB_multitexture", 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_mirrored_repeat", NULL }, |
| { "GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions }, |
| { "GL_EXT_stencil_wrap", NULL }, |
| { "GL_EXT_texture_edge_clamp", NULL }, |
| { "GL_EXT_texture_env_combine", 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 _i810_render_stage; |
| |
| static const struct tnl_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); |
| struct dd_function_table functions; |
| |
| /* Allocate i810 context */ |
| imesa = (i810ContextPtr) CALLOC_STRUCT(i810_context_t); |
| if (!imesa) { |
| return GL_FALSE; |
| } |
| |
| driContextPriv->driverPrivate = imesa; |
| |
| imesa->i810Screen = i810Screen; |
| imesa->driScreen = sPriv; |
| imesa->sarea = saPriv; |
| imesa->glBuffer = NULL; |
| |
| /* Init default driver functions then plug in our I810-specific functions |
| * (the texture functions are especially important) |
| */ |
| _mesa_init_driver_functions( &functions ); |
| i810InitIoctlFuncs( &functions ); |
| i810InitTextureFuncs( &functions ); |
| |
| |
| /* Allocate the Mesa context */ |
| if (sharedContextPrivate) |
| shareCtx = ((i810ContextPtr) sharedContextPrivate)->glCtx; |
| else |
| shareCtx = NULL; |
| imesa->glCtx = _mesa_create_context(mesaVis, shareCtx, |
| &functions, (void*) imesa); |
| if (!imesa->glCtx) { |
| FREE(imesa); |
| return GL_FALSE; |
| } |
| |
| (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, |
| (unsigned *) & imesa->sarea->texAge, /* XXX we shouldn't cast! */ |
| & 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; |
| ctx->Const.MaxTextureImageUnits = 2; |
| ctx->Const.MaxTextureCoordUnits = 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, |
| 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 = 3.0; |
| ctx->Const.MaxPointSizeAA = 3.0; |
| ctx->Const.PointSizeGranularity = 1.0; |
| |
| /* reinitialize the context point state. |
| * It depend on constants in __GLcontextRec::Const |
| */ |
| _mesa_init_point(ctx); |
| |
| ctx->Driver.GetBufferSize = i810BufferSize; |
| ctx->Driver.GetString = i810GetString; |
| |
| /* Who owns who? |
| */ |
| ctx->DriverCtx = (void *) imesa; |
| imesa->glCtx = ctx; |
| |
| /* 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, i810_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; |
| 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 ); |
| /* XXX these should really go right after _mesa_init_driver_functions() */ |
| i810InitStateFuncs( ctx ); |
| i810InitTriFuncs( ctx ); |
| i810InitSpanFuncs( 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 ); |
| _vbo_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. |
| */ |
| unsigned 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 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 ) |
| { |
| /* Determine current color drawing buffer */ |
| switch (imesa->glCtx->DrawBuffer->_ColorDrawBufferIndexes[0]) { |
| case BUFFER_FRONT_LEFT: |
| i810XMesaSetFrontClipRects( imesa ); |
| break; |
| case BUFFER_BACK_LEFT: |
| i810XMesaSetBackClipRects( imesa ); |
| break; |
| 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_current(imesa->glCtx, |
| (GLframebuffer *) driDrawPriv->driverPrivate, |
| (GLframebuffer *) driReadPriv->driverPrivate); |
| |
| /* Are these necessary? |
| */ |
| i810XMesaWindowMoved( imesa ); |
| } |
| else { |
| _mesa_make_current(NULL, NULL, NULL); |
| } |
| |
| return GL_TRUE; |
| } |
| |
| static void |
| i810UpdatePageFlipping( i810ContextPtr imesa ) |
| { |
| GLcontext *ctx = imesa->glCtx; |
| int front = 0; |
| |
| /* Determine current color drawing buffer */ |
| switch (ctx->DrawBuffer->_ColorDrawBufferIndexes[0]) { |
| case BUFFER_FRONT_LEFT: |
| front = 1; |
| break; |
| case BUFFER_BACK_LEFT: |
| front = 0; |
| break; |
| default: |
| return; |
| } |
| |
| if ( imesa->sarea->pf_current_page == 1 ) |
| front ^= 1; |
| |
| driFlipRenderbuffers(ctx->WinSysDrawBuffer, front); |
| |
| if (front) { |
| imesa->BufferSetup[I810_DESTREG_DI1] = imesa->i810Screen->fbOffset | imesa->i810Screen->backPitchBits; |
| } else { |
| imesa->BufferSetup[I810_DESTREG_DI1] = imesa->i810Screen->backOffset | imesa->i810Screen->backPitchBits; |
| } |
| |
| 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) { |
| driUpdateFramebufferSize(imesa->glCtx, dPriv); |
| 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"); |
| } |
| } |
| |