diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mga_xmesa.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mga_xmesa.c | 1020 |
1 files changed, 1020 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mga_xmesa.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mga_xmesa.c new file mode 100644 index 000000000..d1d7799f9 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mga/mga_xmesa.c @@ -0,0 +1,1020 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mga_xmesa.c,v 1.19 2003/03/26 20:43:49 tsi Exp $ */ +/* + * Copyright 2000-2001 VA Linux Systems, Inc. + * 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 + * on 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 + * VA LINUX SYSTEMS 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. + */ + +/** + * \file mga_xmesa.c + * MGA screen and context initialization / creation code. + * + * \author Keith Whitwell <keith@tungstengraphics.com> + */ + +#include <stdlib.h> +#include <stdint.h> +#include "drm.h" +#include "mga_drm.h" +#include "mga_xmesa.h" +#include "context.h" +#include "matrix.h" +#include "simple_list.h" +#include "imports.h" +#include "framebuffer.h" +#include "renderbuffer.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 "mgadd.h" +#include "mgastate.h" +#include "mgatex.h" +#include "mgaspan.h" +#include "mgaioctl.h" +#include "mgatris.h" +#include "mgavb.h" +#include "mgapixel.h" +#include "mga_xmesa.h" +#include "mga_dri.h" + +#include "utils.h" +#include "vblank.h" + +#include "extensions.h" + +#include "GL/internal/dri_interface.h" + +#define need_GL_ARB_multisample +#define need_GL_ARB_texture_compression +#define need_GL_ARB_vertex_program +#define need_GL_EXT_fog_coord +#define need_GL_EXT_multi_draw_arrays +#define need_GL_EXT_secondary_color +#if 0 +#define need_GL_EXT_paletted_texture +#endif +#define need_GL_NV_vertex_program +#include "extension_helper.h" + +/* MGA configuration + */ +#include "xmlpool.h" + +PUBLIC const char __driConfigOptions[] = +DRI_CONF_BEGIN + DRI_CONF_SECTION_PERFORMANCE + DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0) + DRI_CONF_SECTION_END + DRI_CONF_SECTION_QUALITY + DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB) + DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER) + DRI_CONF_SECTION_END + DRI_CONF_SECTION_SOFTWARE + DRI_CONF_ARB_VERTEX_PROGRAM(true) + DRI_CONF_NV_VERTEX_PROGRAM(true) + DRI_CONF_SECTION_END + DRI_CONF_SECTION_DEBUG + DRI_CONF_NO_RAST(false) + DRI_CONF_SECTION_END +DRI_CONF_END; +static const GLuint __driNConfigOptions = 6; + +#ifndef MGA_DEBUG +int MGA_DEBUG = 0; +#endif + +static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo ); + +static __GLcontextModes * +mgaFillInModes( unsigned pixel_bits, unsigned depth_bits, + unsigned stencil_bits, GLboolean have_back_buffer ) +{ + __GLcontextModes * modes; + __GLcontextModes * m; + unsigned num_modes; + unsigned depth_buffer_factor; + unsigned back_buffer_factor; + GLenum fb_format; + GLenum fb_type; + + /* GLX_SWAP_COPY_OML is only supported because the MGA driver doesn't + * support pageflipping at all. + */ + static const GLenum back_buffer_modes[] = { + GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML + }; + + u_int8_t depth_bits_array[3]; + u_int8_t stencil_bits_array[3]; + + + depth_bits_array[0] = 0; + depth_bits_array[1] = depth_bits; + depth_bits_array[2] = depth_bits; + + /* Just like with the accumulation buffer, always provide some modes + * with a stencil buffer. It will be a sw fallback, but some apps won't + * care about that. + */ + stencil_bits_array[0] = 0; + stencil_bits_array[1] = 0; + stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits; + + depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1; + back_buffer_factor = (have_back_buffer) ? 2 : 1; + + num_modes = depth_buffer_factor * back_buffer_factor * 4; + + if ( pixel_bits == 16 ) { + fb_format = GL_RGB; + fb_type = GL_UNSIGNED_SHORT_5_6_5; + } + else { + fb_format = GL_BGR; + fb_type = GL_UNSIGNED_INT_8_8_8_8_REV; + } + + modes = (*dri_interface->createContextModes)( num_modes, sizeof( __GLcontextModes ) ); + m = modes; + if ( ! driFillInModes( & m, fb_format, fb_type, + depth_bits_array, stencil_bits_array, depth_buffer_factor, + back_buffer_modes, back_buffer_factor, + GLX_TRUE_COLOR ) ) { + fprintf( stderr, "[%s:%u] Error creating FBConfig!\n", + __func__, __LINE__ ); + return NULL; + } + + if ( ! driFillInModes( & m, fb_format, fb_type, + depth_bits_array, stencil_bits_array, depth_buffer_factor, + back_buffer_modes, back_buffer_factor, + GLX_DIRECT_COLOR ) ) { + fprintf( stderr, "[%s:%u] Error creating FBConfig!\n", + __func__, __LINE__ ); + return NULL; + } + + /* Mark the visual as slow if there are "fake" stencil bits. + */ + for ( m = modes ; m != NULL ; m = m->next ) { + if ( (m->stencilBits != 0) && (m->stencilBits != stencil_bits) ) { + m->visualRating = GLX_SLOW_CONFIG; + } + } + + return modes; +} + + +static GLboolean +mgaInitDriver(__DRIscreenPrivate *sPriv) +{ + mgaScreenPrivate *mgaScreen; + MGADRIPtr serverInfo = (MGADRIPtr)sPriv->pDevPriv; + PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension = + (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension")); + void * const psc = sPriv->psc->screenConfigs; + + if (sPriv->devPrivSize != sizeof(MGADRIRec)) { + fprintf(stderr,"\nERROR! sizeof(MGADRIRec) does not match passed size from device driver\n"); + return GL_FALSE; + } + + /* Allocate the private area */ + mgaScreen = (mgaScreenPrivate *)MALLOC(sizeof(mgaScreenPrivate)); + if (!mgaScreen) { + __driUtilMessage("Couldn't malloc screen struct"); + return GL_FALSE; + } + + mgaScreen->sPriv = sPriv; + sPriv->private = (void *)mgaScreen; + + if (sPriv->drmMinor >= 1) { + int ret; + drm_mga_getparam_t gp; + + gp.param = MGA_PARAM_IRQ_NR; + gp.value = &mgaScreen->irq; + mgaScreen->irq = 0; + + ret = drmCommandWriteRead( sPriv->fd, DRM_MGA_GETPARAM, + &gp, sizeof(gp)); + if (ret) { + fprintf(stderr, "drmMgaGetParam (MGA_PARAM_IRQ_NR): %d\n", ret); + FREE(mgaScreen); + sPriv->private = NULL; + return GL_FALSE; + } + } + + if ( glx_enable_extension != NULL ) { + (*glx_enable_extension)( psc, "GLX_MESA_swap_control" ); + (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" ); + (*glx_enable_extension)( psc, "GLX_SGI_make_current_read" ); + (*glx_enable_extension)( psc, "GLX_SGI_swap_control" ); + (*glx_enable_extension)( psc, "GLX_SGI_video_sync" ); + } + + if (serverInfo->chipset != MGA_CARD_TYPE_G200 && + serverInfo->chipset != MGA_CARD_TYPE_G400) { + FREE(mgaScreen); + sPriv->private = NULL; + __driUtilMessage("Unrecognized chipset"); + return GL_FALSE; + } + + + mgaScreen->chipset = serverInfo->chipset; + mgaScreen->cpp = serverInfo->cpp; + + mgaScreen->agpMode = serverInfo->agpMode; + + mgaScreen->frontPitch = serverInfo->frontPitch; + mgaScreen->frontOffset = serverInfo->frontOffset; + mgaScreen->backOffset = serverInfo->backOffset; + mgaScreen->backPitch = serverInfo->backPitch; + mgaScreen->depthOffset = serverInfo->depthOffset; + mgaScreen->depthPitch = serverInfo->depthPitch; + + + /* The only reason that the MMIO region needs to be accessable and the + * primary DMA region base address needs to be known is so that the driver + * can busy wait for certain DMA operations to complete (see + * mgaWaitForFrameCompletion in mgaioctl.c). + * + * Starting with MGA DRM version 3.2, these are completely unneeded as + * there is a new, in-kernel mechanism for handling the wait. + */ + + if (mgaScreen->sPriv->drmMinor < 2) { + mgaScreen->mmio.handle = serverInfo->registers.handle; + mgaScreen->mmio.size = serverInfo->registers.size; + if ( drmMap( sPriv->fd, + mgaScreen->mmio.handle, mgaScreen->mmio.size, + &mgaScreen->mmio.map ) < 0 ) { + FREE( mgaScreen ); + sPriv->private = NULL; + __driUtilMessage( "Couldn't map MMIO registers" ); + return GL_FALSE; + } + + mgaScreen->primary.handle = serverInfo->primary.handle; + mgaScreen->primary.size = serverInfo->primary.size; + } + else { + (void) memset( & mgaScreen->primary, 0, sizeof( mgaScreen->primary ) ); + (void) memset( & mgaScreen->mmio, 0, sizeof( mgaScreen->mmio ) ); + } + + mgaScreen->textureOffset[MGA_CARD_HEAP] = serverInfo->textureOffset; + mgaScreen->textureOffset[MGA_AGP_HEAP] = (serverInfo->agpTextureOffset | + PDEA_pagpxfer_enable | 1); + + mgaScreen->textureSize[MGA_CARD_HEAP] = serverInfo->textureSize; + mgaScreen->textureSize[MGA_AGP_HEAP] = serverInfo->agpTextureSize; + + + /* The texVirtual array stores the base addresses in the CPU's address + * space of the texture memory pools. The base address of the on-card + * memory pool is calculated as an offset of the base of video memory. The + * AGP texture pool has to be mapped into the processes address space by + * the DRM. + */ + + mgaScreen->texVirtual[MGA_CARD_HEAP] = (char *)(mgaScreen->sPriv->pFB + + serverInfo->textureOffset); + + if ( serverInfo->agpTextureSize > 0 ) { + if (drmMap(sPriv->fd, serverInfo->agpTextureOffset, + serverInfo->agpTextureSize, + (drmAddress *)&mgaScreen->texVirtual[MGA_AGP_HEAP]) != 0) { + FREE(mgaScreen); + sPriv->private = NULL; + __driUtilMessage("Couldn't map agptexture region"); + return GL_FALSE; + } + } + + + /* For calculating setupdma addresses. + */ + + mgaScreen->bufs = drmMapBufs(sPriv->fd); + if (!mgaScreen->bufs) { + FREE(mgaScreen); + sPriv->private = NULL; + __driUtilMessage("Couldn't map dma buffers"); + return GL_FALSE; + } + mgaScreen->sarea_priv_offset = serverInfo->sarea_priv_offset; + + /* parse information in __driConfigOptions */ + driParseOptionInfo (&mgaScreen->optionCache, + __driConfigOptions, __driNConfigOptions); + + return GL_TRUE; +} + + +static void +mgaDestroyScreen(__DRIscreenPrivate *sPriv) +{ + mgaScreenPrivate *mgaScreen = (mgaScreenPrivate *) sPriv->private; + + if (MGA_DEBUG&DEBUG_VERBOSE_DRI) + fprintf(stderr, "mgaDestroyScreen\n"); + + drmUnmapBufs(mgaScreen->bufs); + + + /* free all option information */ + driDestroyOptionInfo (&mgaScreen->optionCache); + + FREE(mgaScreen); + sPriv->private = NULL; +} + + +extern const struct tnl_pipeline_stage _mga_render_stage; + +static const struct tnl_pipeline_stage *mga_pipeline[] = { + &_tnl_vertex_transform_stage, + &_tnl_normal_transform_stage, + &_tnl_lighting_stage, + &_tnl_fog_coordinate_stage, + &_tnl_texgen_stage, + &_tnl_texture_transform_stage, + &_tnl_arb_vertex_program_stage, + &_tnl_vertex_program_stage, + + /* REMOVE: point attenuation stage */ +#if 0 + &_mga_render_stage, /* ADD: unclipped rastersetup-to-dma */ + /* Need new ioctl for wacceptseq */ +#endif + &_tnl_render_stage, + 0, +}; + + +static const struct dri_extension g400_extensions[] = +{ + { "GL_ARB_multitexture", NULL }, + { "GL_ARB_texture_env_add", NULL }, + { "GL_ARB_texture_env_combine", NULL }, + { "GL_ARB_texture_env_crossbar", NULL }, + { "GL_EXT_texture_env_combine", NULL }, + { "GL_EXT_texture_edge_clamp", NULL }, + { "GL_ATI_texture_env_combine3", NULL }, + { NULL, NULL } +}; + +static const struct dri_extension card_extensions[] = +{ + { "GL_ARB_multisample", GL_ARB_multisample_functions }, + { "GL_ARB_texture_compression", GL_ARB_texture_compression_functions }, + { "GL_ARB_texture_rectangle", NULL }, + { "GL_EXT_blend_logic_op", NULL }, + { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions }, + { "GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions }, + /* paletted_textures currently doesn't work, but we could fix them later */ +#if defined( need_GL_EXT_paletted_texture ) + { "GL_EXT_shared_texture_palette", NULL }, + { "GL_EXT_paletted_texture", GL_EXT_paletted_texture_functions }, +#endif + { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions }, + { "GL_EXT_stencil_wrap", NULL }, + { "GL_MESA_ycbcr_texture", NULL }, + { "GL_SGIS_generate_mipmap", NULL }, + { NULL, NULL } +}; + +static const struct dri_extension ARB_vp_extension[] = { + { "GL_ARB_vertex_program", GL_ARB_vertex_program_functions }, + { NULL, NULL } +}; + +static const struct dri_extension NV_vp_extensions[] = { + { "GL_NV_vertex_program", GL_NV_vertex_program_functions }, + { "GL_NV_vertex_program1_1", NULL }, + { NULL, NULL } +}; + +static const struct dri_debug_control debug_control[] = +{ + { "fall", DEBUG_VERBOSE_FALLBACK }, + { "tex", DEBUG_VERBOSE_TEXTURE }, + { "ioctl", DEBUG_VERBOSE_IOCTL }, + { "verb", DEBUG_VERBOSE_MSG }, + { "dri", DEBUG_VERBOSE_DRI }, + { NULL, 0 } +}; + + +static GLboolean +mgaCreateContext( const __GLcontextModes *mesaVis, + __DRIcontextPrivate *driContextPriv, + void *sharedContextPrivate ) +{ + int i; + unsigned maxlevels; + GLcontext *ctx, *shareCtx; + mgaContextPtr mmesa; + __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv; + mgaScreenPrivate *mgaScreen = (mgaScreenPrivate *)sPriv->private; + drm_mga_sarea_t *saPriv = (drm_mga_sarea_t *)(((char*)sPriv->pSAREA)+ + mgaScreen->sarea_priv_offset); + struct dd_function_table functions; + + if (MGA_DEBUG&DEBUG_VERBOSE_DRI) + fprintf(stderr, "mgaCreateContext\n"); + + /* allocate mga context */ + mmesa = (mgaContextPtr) CALLOC(sizeof(mgaContext)); + if (!mmesa) { + return GL_FALSE; + } + + /* Init default driver functions then plug in our Radeon-specific functions + * (the texture functions are especially important) + */ + _mesa_init_driver_functions( &functions ); + mgaInitDriverFuncs( &functions ); + mgaInitTextureFuncs( &functions ); + mgaInitIoctlFuncs( &functions ); + + /* Allocate the Mesa context */ + if (sharedContextPrivate) + shareCtx = ((mgaContextPtr) sharedContextPrivate)->glCtx; + else + shareCtx = NULL; + mmesa->glCtx = _mesa_create_context(mesaVis, shareCtx, + &functions, (void *) mmesa); + if (!mmesa->glCtx) { + FREE(mmesa); + return GL_FALSE; + } + driContextPriv->driverPrivate = mmesa; + + /* Init mga state */ + mmesa->hHWContext = driContextPriv->hHWContext; + mmesa->driFd = sPriv->fd; + mmesa->driHwLock = &sPriv->pSAREA->lock; + + mmesa->mgaScreen = mgaScreen; + mmesa->driScreen = sPriv; + mmesa->sarea = (void *)saPriv; + + /* Parse configuration files */ + driParseConfigFiles (&mmesa->optionCache, &mgaScreen->optionCache, + sPriv->myNum, "mga"); + + (void) memset( mmesa->texture_heaps, 0, sizeof( mmesa->texture_heaps ) ); + make_empty_list( & mmesa->swapped ); + + mmesa->nr_heaps = mgaScreen->texVirtual[MGA_AGP_HEAP] ? 2 : 1; + for ( i = 0 ; i < mmesa->nr_heaps ; i++ ) { + mmesa->texture_heaps[i] = driCreateTextureHeap( i, mmesa, + mgaScreen->textureSize[i], + 6, + MGA_NR_TEX_REGIONS, + (drmTextureRegionPtr)mmesa->sarea->texList[i], + &mmesa->sarea->texAge[i], + &mmesa->swapped, + sizeof( mgaTextureObject_t ), + (destroy_texture_object_t *) mgaDestroyTexObj ); + } + + /* Set the maximum texture size small enough that we can guarentee + * that both texture units can bind a maximal texture and have them + * on the card at once. + */ + ctx = mmesa->glCtx; + if ( mgaScreen->chipset == MGA_CARD_TYPE_G200 ) { + ctx->Const.MaxTextureUnits = 1; + ctx->Const.MaxTextureImageUnits = 1; + ctx->Const.MaxTextureCoordUnits = 1; + maxlevels = G200_TEX_MAXLEVELS; + + } + else { + ctx->Const.MaxTextureUnits = 2; + ctx->Const.MaxTextureImageUnits = 2; + ctx->Const.MaxTextureCoordUnits = 2; + maxlevels = G400_TEX_MAXLEVELS; + } + + driCalculateMaxTextureLevels( mmesa->texture_heaps, + mmesa->nr_heaps, + & ctx->Const, + 4, + 11, /* max 2D texture size is 2048x2048 */ + 0, /* 3D textures unsupported. */ + 0, /* cube textures unsupported. */ + 11, /* max texture rect size is 2048x2048 */ + maxlevels, + GL_FALSE ); + + ctx->Const.MinLineWidth = 1.0; + ctx->Const.MinLineWidthAA = 1.0; + ctx->Const.MaxLineWidth = 10.0; + ctx->Const.MaxLineWidthAA = 10.0; + ctx->Const.LineWidthGranularity = 1.0; + + mmesa->texture_depth = driQueryOptioni (&mmesa->optionCache, + "texture_depth"); + if (mmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB) + mmesa->texture_depth = ( mesaVis->rgbBits >= 24 ) ? + DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16; + mmesa->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; + + switch (mesaVis->depthBits) { + case 16: + mmesa->depth_scale = 1.0/(GLdouble)0xffff; + mmesa->depth_clear_mask = ~0; + mmesa->ClearDepth = 0xffff; + break; + case 24: + mmesa->depth_scale = 1.0/(GLdouble)0xffffff; + if (mmesa->hw_stencil) { + mmesa->depth_clear_mask = 0xffffff00; + mmesa->stencil_clear_mask = 0x000000ff; + } else + mmesa->depth_clear_mask = ~0; + mmesa->ClearDepth = 0xffffff00; + break; + case 32: + mmesa->depth_scale = 1.0/(GLdouble)0xffffffff; + mmesa->depth_clear_mask = ~0; + mmesa->ClearDepth = 0xffffffff; + break; + }; + + mmesa->haveHwStipple = GL_FALSE; + mmesa->RenderIndex = -1; /* impossible value */ + mmesa->dirty = ~0; + mmesa->vertex_format = 0; + mmesa->CurrentTexObj[0] = 0; + mmesa->CurrentTexObj[1] = 0; + mmesa->tmu_source[0] = 0; + mmesa->tmu_source[1] = 1; + + mmesa->texAge[0] = 0; + mmesa->texAge[1] = 0; + + /* 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, mga_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 ); + + mmesa->primary_offset = mmesa->mgaScreen->primary.handle; + + ctx->DriverCtx = (void *) mmesa; + mmesa->glCtx = ctx; + + driInitExtensions( ctx, card_extensions, GL_FALSE ); + + if (MGA_IS_G400(MGA_CONTEXT(ctx))) { + driInitExtensions( ctx, g400_extensions, GL_FALSE ); + } + + if ( driQueryOptionb( &mmesa->optionCache, "arb_vertex_program" ) ) { + driInitSingleExtension( ctx, ARB_vp_extension ); + } + + if ( driQueryOptionb( &mmesa->optionCache, "nv_vertex_program" ) ) { + driInitExtensions( ctx, NV_vp_extensions, GL_FALSE ); + } + + + /* XXX these should really go right after _mesa_init_driver_functions() */ + mgaDDInitStateFuncs( ctx ); + mgaDDInitSpanFuncs( ctx ); + mgaDDInitPixelFuncs( ctx ); + mgaDDInitTriFuncs( ctx ); + + mgaInitVB( ctx ); + mgaInitState( mmesa ); + + driContextPriv->driverPrivate = (void *) mmesa; + +#if DO_DEBUG + MGA_DEBUG = driParseDebugString( getenv( "MGA_DEBUG" ), + debug_control ); +#endif + + mmesa->vblank_flags = (mmesa->mgaScreen->irq == 0) + ? VBLANK_FLAG_NO_IRQ : driGetDefaultVBlankFlags(&mmesa->optionCache); + + (*dri_interface->getUST)( & mmesa->swap_ust ); + + if (driQueryOptionb(&mmesa->optionCache, "no_rast")) { + fprintf(stderr, "disabling 3D acceleration\n"); + FALLBACK(mmesa->glCtx, MGA_FALLBACK_DISABLE, 1); + } + + return GL_TRUE; +} + +static void +mgaDestroyContext(__DRIcontextPrivate *driContextPriv) +{ + mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate; + + if (MGA_DEBUG&DEBUG_VERBOSE_DRI) + fprintf( stderr, "[%s:%d] mgaDestroyContext start\n", + __FILE__, __LINE__ ); + + assert(mmesa); /* should never be null */ + if (mmesa) { + GLboolean release_texture_heaps; + + + release_texture_heaps = (mmesa->glCtx->Shared->RefCount == 1); + _swsetup_DestroyContext( mmesa->glCtx ); + _tnl_DestroyContext( mmesa->glCtx ); + _ac_DestroyContext( mmesa->glCtx ); + _swrast_DestroyContext( mmesa->glCtx ); + + mgaFreeVB( mmesa->glCtx ); + + /* free the Mesa context */ + mmesa->glCtx->DriverCtx = NULL; + _mesa_destroy_context(mmesa->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 < mmesa->nr_heaps ; i++ ) { + driDestroyTextureHeap( mmesa->texture_heaps[ i ] ); + mmesa->texture_heaps[ i ] = NULL; + } + + assert( is_empty_list( & mmesa->swapped ) ); + } + + /* free the option cache */ + driDestroyOptionCache (&mmesa->optionCache); + + FREE(mmesa); + } + + if (MGA_DEBUG&DEBUG_VERBOSE_DRI) + fprintf( stderr, "[%s:%d] mgaDestroyContext done\n", + __FILE__, __LINE__ ); +} + + +static GLboolean +mgaCreateBuffer( __DRIscreenPrivate *driScrnPriv, + __DRIdrawablePrivate *driDrawPriv, + const __GLcontextModes *mesaVis, + GLboolean isPixmap ) +{ + mgaScreenPrivate *screen = (mgaScreenPrivate *) driScrnPriv->private; + + if (isPixmap) { + return GL_FALSE; /* not implemented */ + } + else { + GLboolean swStencil = (mesaVis->stencilBits > 0 && + mesaVis->depthBits != 24); + +#if 0 + driDrawPriv->driverPrivate = (void *) + _mesa_create_framebuffer(mesaVis, + GL_FALSE, /* software depth buffer? */ + swStencil, + mesaVis->accumRedBits > 0, + mesaVis->alphaBits > 0 ); +#else + struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis); + + { + driRenderbuffer *frontRb + = driNewRenderbuffer(GL_RGBA, screen->cpp, + screen->frontOffset, screen->frontPitch); + mgaSetSpanFunctions(frontRb, mesaVis); + _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base); + } + + if (mesaVis->doubleBufferMode) { + driRenderbuffer *backRb + = driNewRenderbuffer(GL_RGBA, screen->cpp, + screen->backOffset, screen->backPitch); + mgaSetSpanFunctions(backRb, mesaVis); + _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base); + } + + if (mesaVis->depthBits == 16) { + driRenderbuffer *depthRb + = driNewRenderbuffer(GL_DEPTH_COMPONENT16, screen->cpp, + screen->depthOffset, screen->depthPitch); + mgaSetSpanFunctions(depthRb, mesaVis); + _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base); + } + else if (mesaVis->depthBits == 24) { + /* XXX is this right? */ + if (mesaVis->stencilBits) { + driRenderbuffer *depthRb + = driNewRenderbuffer(GL_DEPTH_COMPONENT24, screen->cpp, + screen->depthOffset, screen->depthPitch); + mgaSetSpanFunctions(depthRb, mesaVis); + _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base); + } + else { + driRenderbuffer *depthRb + = driNewRenderbuffer(GL_DEPTH_COMPONENT32, screen->cpp, + screen->depthOffset, screen->depthPitch); + mgaSetSpanFunctions(depthRb, mesaVis); + _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base); + } + } + else if (mesaVis->depthBits == 32) { + driRenderbuffer *depthRb + = driNewRenderbuffer(GL_DEPTH_COMPONENT32, screen->cpp, + screen->depthOffset, screen->depthPitch); + mgaSetSpanFunctions(depthRb, mesaVis); + _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base); + } + + if (mesaVis->stencilBits > 0 && !swStencil) { + driRenderbuffer *stencilRb + = driNewRenderbuffer(GL_STENCIL_INDEX8_EXT, screen->cpp, + screen->depthOffset, screen->depthPitch); + mgaSetSpanFunctions(stencilRb, mesaVis); + _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base); + } + + _mesa_add_soft_renderbuffers(fb, + GL_FALSE, /* color */ + GL_FALSE, /* depth */ + swStencil, + mesaVis->accumRedBits > 0, + GL_FALSE, /* alpha */ + GL_FALSE /* aux */); + driDrawPriv->driverPrivate = (void *) fb; +#endif + + return (driDrawPriv->driverPrivate != NULL); + } +} + + +static void +mgaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv) +{ + _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); +} + +static void +mgaSwapBuffers(__DRIdrawablePrivate *dPriv) +{ + if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { + mgaContextPtr mmesa; + GLcontext *ctx; + mmesa = (mgaContextPtr) dPriv->driContextPriv->driverPrivate; + ctx = mmesa->glCtx; + + if (ctx->Visual.doubleBufferMode) { + _mesa_notifySwapBuffers( ctx ); + mgaCopyBuffer( 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__); + } +} + +static GLboolean +mgaUnbindContext(__DRIcontextPrivate *driContextPriv) +{ + mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate; + if (mmesa) + mmesa->dirty = ~0; + + return GL_TRUE; +} + +/* This looks buggy to me - the 'b' variable isn't used anywhere... + * Hmm - It seems that the drawable is already hooked in to + * driDrawablePriv. + * + * But why are we doing context initialization here??? + */ +static GLboolean +mgaMakeCurrent(__DRIcontextPrivate *driContextPriv, + __DRIdrawablePrivate *driDrawPriv, + __DRIdrawablePrivate *driReadPriv) +{ + if (driContextPriv) { + mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate; + + if (mmesa->driDrawable != driDrawPriv) { + driDrawableInitVBlank( driDrawPriv, mmesa->vblank_flags ); + mmesa->driDrawable = driDrawPriv; + mmesa->dirty = ~0; + mmesa->dirty_cliprects = (MGA_FRONT|MGA_BACK); + mmesa->mesa_drawable = driDrawPriv; + } + + mmesa->driReadable = driReadPriv; + + _mesa_make_current(mmesa->glCtx, + (GLframebuffer *) driDrawPriv->driverPrivate, + (GLframebuffer *) driReadPriv->driverPrivate); + } + else { + _mesa_make_current(NULL, NULL, NULL); + } + + return GL_TRUE; +} + + +void mgaGetLock( mgaContextPtr mmesa, GLuint flags ) +{ + __DRIdrawablePrivate *dPriv = mmesa->driDrawable; + drm_mga_sarea_t *sarea = mmesa->sarea; + int me = mmesa->hHWContext; + int i; + + drmGetLock(mmesa->driFd, mmesa->hHWContext, flags); + + if (*(dPriv->pStamp) != mmesa->lastStamp) { + mmesa->lastStamp = *(dPriv->pStamp); + mmesa->SetupNewInputs |= VERT_BIT_POS; + mmesa->dirty_cliprects = (MGA_FRONT|MGA_BACK); + mgaUpdateRects( mmesa, (MGA_FRONT|MGA_BACK) ); + } + + mmesa->dirty |= MGA_UPLOAD_CONTEXT | MGA_UPLOAD_CLIPRECTS; + + mmesa->sarea->dirty |= MGA_UPLOAD_CONTEXT; + + if (sarea->ctxOwner != me) { + mmesa->dirty |= (MGA_UPLOAD_CONTEXT | MGA_UPLOAD_TEX0 | + MGA_UPLOAD_TEX1 | MGA_UPLOAD_PIPE); + sarea->ctxOwner=me; + } + + for ( i = 0 ; i < mmesa->nr_heaps ; i++ ) { + DRI_AGE_TEXTURES( mmesa->texture_heaps[ i ] ); + } +} + + +static const struct __DriverAPIRec mgaAPI = { + .InitDriver = mgaInitDriver, + .DestroyScreen = mgaDestroyScreen, + .CreateContext = mgaCreateContext, + .DestroyContext = mgaDestroyContext, + .CreateBuffer = mgaCreateBuffer, + .DestroyBuffer = mgaDestroyBuffer, + .SwapBuffers = mgaSwapBuffers, + .MakeCurrent = mgaMakeCurrent, + .UnbindContext = mgaUnbindContext, + .GetSwapInfo = getSwapInfo, + .GetMSC = driGetMSC32, + .WaitForMSC = driWaitForMSC32, + .WaitForSBC = NULL, + .SwapBuffersMSC = NULL +}; + + +/** + * This is the bootstrap function for the driver. libGL supplies all of the + * requisite information about the system, and the driver initializes itself. + * This routine also fills in the linked list pointed to by \c driver_modes + * with the \c __GLcontextModes that the driver can support for windows or + * pbuffers. + * + * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on + * failure. + */ +PUBLIC +void * __driCreateNewScreen_20050727( __DRInativeDisplay *dpy, int scrn, __DRIscreen *psc, + const __GLcontextModes * modes, + const __DRIversion * ddx_version, + const __DRIversion * dri_version, + const __DRIversion * drm_version, + const __DRIframebuffer * frame_buffer, + drmAddress pSAREA, int fd, + int internal_api_version, + const __DRIinterfaceMethods * interface, + __GLcontextModes ** driver_modes ) + +{ + __DRIscreenPrivate *psp; + static const __DRIversion ddx_expected = { 1, 2, 0 }; + static const __DRIversion dri_expected = { 4, 0, 0 }; + static const __DRIversion drm_expected = { 3, 0, 0 }; + + dri_interface = interface; + + if ( ! driCheckDriDdxDrmVersions2( "MGA", + dri_version, & dri_expected, + ddx_version, & ddx_expected, + drm_version, & drm_expected ) ) { + return NULL; + } + + psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL, + ddx_version, dri_version, drm_version, + frame_buffer, pSAREA, fd, + internal_api_version, &mgaAPI); + if ( psp != NULL ) { + MGADRIPtr dri_priv = (MGADRIPtr) psp->pDevPriv; + *driver_modes = mgaFillInModes( dri_priv->cpp * 8, + (dri_priv->cpp == 2) ? 16 : 24, + (dri_priv->cpp == 2) ? 0 : 8, + (dri_priv->backOffset != dri_priv->depthOffset) ); + + /* Calling driInitExtensions here, with a NULL context pointer, does not actually + * enable the extensions. It just makes sure that all the dispatch offsets for all + * the extensions that *might* be enables are known. This is needed because the + * dispatch offsets need to be known when _mesa_context_create is called, but we can't + * enable the extensions until we have a context pointer. + * + * Hello chicken. Hello egg. How are you two today? + */ + driInitExtensions( NULL, card_extensions, GL_FALSE ); + driInitExtensions( NULL, g400_extensions, GL_FALSE ); + driInitSingleExtension( NULL, ARB_vp_extension ); + driInitExtensions( NULL, NV_vp_extensions, GL_FALSE ); + + } + + return (void *) psp; +} + + +/** + * Get information about previous buffer swaps. + */ +static int +getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo ) +{ + mgaContextPtr mmesa; + + if ( (dPriv == NULL) || (dPriv->driContextPriv == NULL) + || (dPriv->driContextPriv->driverPrivate == NULL) + || (sInfo == NULL) ) { + return -1; + } + + mmesa = (mgaContextPtr) dPriv->driContextPriv->driverPrivate; + sInfo->swap_count = mmesa->swap_count; + sInfo->swap_ust = mmesa->swap_ust; + sInfo->swap_missed_count = mmesa->swap_missed_count; + + sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0) + ? driCalculateSwapUsage( dPriv, 0, mmesa->swap_missed_ust ) + : 0.0; + + return 0; +} |