/* $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.
*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include <stdlib.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 "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"
/* 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_END;
static const GLuint __driNConfigOptions = 5;
#ifdef USE_NEW_INTERFACE
static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
#endif /* USE_NEW_INTERFACE */
#ifndef MGA_DEBUG
int MGA_DEBUG = 0;
#endif
static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo );
#ifdef USE_NEW_INTERFACE
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 = (*create_context_modes)( 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;
}
#endif /* USE_NEW_INTERFACE */
static GLboolean
mgaInitDriver(__DRIscreenPrivate *sPriv)
{
mgaScreenPrivate *mgaScreen;
MGADRIPtr serverInfo = (MGADRIPtr)sPriv->pDevPriv;
/* 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;
}
}
mgaScreen->linecomp_sane = (sPriv->ddxMajor > 1) || (sPriv->ddxMinor > 1)
|| ((sPriv->ddxMinor == 1) && (sPriv->ddxPatch > 0));
if ( driCompareGLXAPIVersion( 20030813 ) >= 0 ) {
PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
(PFNGLXSCRENABLEEXTENSIONPROC) glXGetProcAddress( (const GLubyte *) "__glXScrEnableExtension" );
void * const psc = sPriv->psc->screenConfigs;
if ( glx_enable_extension != NULL ) {
if ( mgaScreen->linecomp_sane ) {
(*glx_enable_extension)( psc, "GLX_SGI_swap_control" );
(*glx_enable_extension)( psc, "GLX_SGI_video_sync" );
(*glx_enable_extension)( psc, "GLX_MESA_swap_control" );
}
(*glx_enable_extension)( psc, "GLX_SGI_make_current_read" );
(*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
if ( driCompareGLXAPIVersion( 20030915 ) >= 0 ) {
(*glx_enable_extension)( psc, "GLX_SGIX_fbconfig" );
(*glx_enable_extension)( psc, "GLX_OML_swap_method" );
}
}
}
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->width = serverInfo->width;
mgaScreen->height = serverInfo->height;
mgaScreen->mem = serverInfo->mem;
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;
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;
mgaScreen->buffers.handle = serverInfo->buffers.handle;
mgaScreen->buffers.size = serverInfo->buffers.size;
#if 0
mgaScreen->agp.handle = serverInfo->agp;
mgaScreen->agp.size = serverInfo->agpSize;
if (drmMap(sPriv->fd,
mgaScreen->agp.handle,
mgaScreen->agp.size,
(drmAddress *)&mgaScreen->agp.map) != 0)
{
Xfree(mgaScreen);
sPriv->private = NULL;
__driUtilMessage("Couldn't map agp region");
return GL_FALSE;
}
#endif
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;
mgaScreen->logTextureGranularity[MGA_CARD_HEAP] =
serverInfo->logTextureGranularity;
mgaScreen->logTextureGranularity[MGA_AGP_HEAP] =
serverInfo->logAgpTextureGranularity;
mgaScreen->texVirtual[MGA_CARD_HEAP] = (char *)(mgaScreen->sPriv->pFB +
serverInfo->textureOffset);
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;
}
#if 0
mgaScreen->texVirtual[MGA_AGP_HEAP] = (mgaScreen->agp.map +
serverInfo->agpTextureOffset);
#endif
mgaScreen->mAccess = serverInfo->mAccess;
/* For calculating setupdma addresses.
*/
mgaScreen->dmaOffset = serverInfo->buffers.handle;
mgaScreen->bufs = drmMapBufs(sPriv->fd);
if (!mgaScreen->bufs) {
/*drmUnmap(mgaScreen->agp_tex.map, mgaScreen->agp_tex.size);*/
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);
/*drmUnmap(mgaScreen->agp_tex.map, mgaScreen->agp_tex.size);*/
/* 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_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 char * const g400_extensions[] =
{
"GL_ARB_multitexture",
"GL_ARB_texture_env_add",
"GL_ARB_texture_env_combine",
"GL_ARB_texture_env_crossbar",
"GL_EXT_texture_env_combine",
"GL_EXT_texture_edge_clamp",
"GL_ATI_texture_env_combine3",
#if defined (MESA_packed_depth_stencil)
"GL_MESA_packed_depth_stencil",
#endif
NULL
};
static const char * const card_extensions[] =
{
"GL_ARB_multisample",
"GL_ARB_texture_compression",
"GL_ARB_texture_rectangle",
"GL_EXT_blend_logic_op",
"GL_EXT_fog_coord",
"GL_EXT_multi_draw_arrays",
/* paletted_textures currently doesn't work, but we could fix them later */
#if 0
"GL_EXT_shared_texture_palette",
"GL_EXT_paletted_texture",
#endif
"GL_EXT_secondary_color",
"GL_EXT_stencil_wrap",
"GL_MESA_ycbcr_texture",
"GL_SGIS_generate_mipmap",
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 int
get_ust_nop( int64_t * ust )
{
*ust = 1;
return 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" ) ) {
_mesa_enable_extension( ctx, "GL_ARB_vertex_program" );
}
if ( driQueryOptionb( &mmesa->optionCache, "nv_vertex_program" ) ) {
_mesa_enable_extension( ctx, "GL_NV_vertex_program" );
_mesa_enable_extension( ctx, "GL_NV_vertex_program1_1" );
}
/* 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)
|| !mmesa->mgaScreen->linecomp_sane)
? VBLANK_FLAG_NO_IRQ : driGetDefaultVBlankFlags(&mmesa->optionCache);
mmesa->get_ust = (PFNGLXGETUSTPROC) glXGetProcAddress( (const GLubyte *) "__glXGetUST" );
if ( mmesa->get_ust == NULL ) {
mmesa->get_ust = get_ust_nop;
}
(*mmesa->get_ust)( & mmesa->swap_ust );
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 )
{
if (isPixmap) {
return GL_FALSE; /* not implemented */
}
else {
GLboolean swStencil = (mesaVis->stencilBits > 0 &&
mesaVis->depthBits != 24);
driDrawPriv->driverPrivate = (void *)
_mesa_create_framebuffer(mesaVis,
GL_FALSE, /* software depth buffer? */
swStencil,
mesaVis->accumRedBits > 0,
mesaVis->alphaBits > 0 );
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_current2(mmesa->glCtx,
(GLframebuffer *) driDrawPriv->driverPrivate,
(GLframebuffer *) driReadPriv->driverPrivate);
}
else {
_mesa_make_current(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 ] );
}
sarea->last_quiescent = -1; /* just kill it for now */
}
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.
* The __driCreateScreen name is the symbol that libGL.so fetches.
* Return: pointer to a __DRIscreenPrivate.
*/
#if !defined(DRI_NEW_INTERFACE_ONLY)
void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc,
int numConfigs, __GLXvisualConfig *config)
{
__DRIscreenPrivate *psp;
psp = __driUtilCreateScreen(dpy, scrn, psc, numConfigs, config, &mgaAPI);
return (void *) psp;
}
#endif /* !defined(DRI_NEW_INTERFACE_ONLY) */
/**
* 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.
*/
#ifdef USE_NEW_INTERFACE
PUBLIC
void * __driCreateNewScreen( __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,
__GLcontextModes ** driver_modes )
{
__DRIscreenPrivate *psp;
static const __DRIversion ddx_expected = { 1, 0, 0 };
static const __DRIversion dri_expected = { 4, 0, 0 };
static const __DRIversion drm_expected = { 3, 0, 0 };
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 ) {
create_context_modes = (PFNGLXCREATECONTEXTMODES)
glXGetProcAddress( (const GLubyte *) "__glXCreateContextModes" );
if ( create_context_modes != 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) );
}
}
return (void *) psp;
}
#endif /* USE_NEW_INTERFACE */
/**
* 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;
}