AMesaContext GLAPIENTRY AMesaCreateContext(AMesaVisual visual, AMesaContext share)
{
AMesaContext context;
GLboolean direct = GL_FALSE;
GLcontext *ctx;
context = (AMesaContext) malloc(sizeof(struct amesa_context));
if (!context)
return NULL;
context->GLContext = _mesa_create_context(visual->GLVisual,
share ? share->GLContext : NULL,
(void*)context,
direct);
if (!context->GLContext) {
free(context);
return NULL;
}
context->Visual = visual;
ctx = context->GLContext;
_mesa_enable_sw_extensions(ctx);
_mesa_enable_1_3_extensions(ctx);
/* Initialize the software rasterizer and helper modules. */
_swrast_CreateContext( ctx );
_ac_CreateContext( ctx );
_tnl_CreateContext( ctx );
_swsetup_CreateContext( ctx );
_swsetup_Wakeup( ctx );
/*AMesaRegisterSwrastFunctions(ctx);*/
return context;
}
/*
* New in Mesa 3.5
*
* Create context and specify size of ancillary buffers.
*/
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
GLint accumBits, OSMesaContext sharelist )
{
OSMesaContext osmesa;
struct dd_function_table functions;
GLint rind, gind, bind, aind;
GLint indexBits = 0, redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0;
GLboolean rgbmode;
rind = gind = bind = aind = 0;
if (format==OSMESA_COLOR_INDEX) {
indexBits = 8;
rgbmode = GL_FALSE;
}
else if (format==OSMESA_RGBA) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
rind = 0;
gind = 1;
bind = 2;
aind = 3;
rgbmode = GL_TRUE;
}
else if (format==OSMESA_BGRA) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
bind = 0;
gind = 1;
rind = 2;
aind = 3;
rgbmode = GL_TRUE;
}
else if (format==OSMESA_ARGB) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
aind = 0;
rind = 1;
gind = 2;
bind = 3;
rgbmode = GL_TRUE;
}
else if (format==OSMESA_RGB) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = 0;
rind = 0;
gind = 1;
bind = 2;
rgbmode = GL_TRUE;
}
else if (format==OSMESA_BGR) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = 0;
rind = 2;
gind = 1;
bind = 0;
rgbmode = GL_TRUE;
}
#if CHAN_TYPE == GL_UNSIGNED_BYTE
else if (format==OSMESA_RGB_565) {
indexBits = 0;
redBits = 5;
greenBits = 6;
blueBits = 5;
alphaBits = 0;
rind = 0; /* not used */
gind = 0;
bind = 0;
rgbmode = GL_TRUE;
}
#endif
else {
return NULL;
}
osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
if (osmesa) {
osmesa->gl_visual = _mesa_create_visual( rgbmode,
GL_FALSE, /* double buffer */
GL_FALSE, /* stereo */
redBits,
greenBits,
blueBits,
alphaBits,
indexBits,
depthBits,
stencilBits,
accumBits,
accumBits,
accumBits,
alphaBits ? accumBits : 0,
1 /* num samples */
);
if (!osmesa->gl_visual) {
FREE(osmesa);
return NULL;
}
/* Initialize device driver function table */
_mesa_init_driver_functions(&functions);
/* override with our functions */
functions.GetString = get_string;
functions.UpdateState = osmesa_update_state;
functions.GetBufferSize = get_buffer_size;
if (!_mesa_initialize_context(&osmesa->mesa,
osmesa->gl_visual,
sharelist ? &sharelist->mesa
: (GLcontext *) NULL,
&functions, (void *) osmesa)) {
_mesa_destroy_visual( osmesa->gl_visual );
FREE(osmesa);
return NULL;
}
_mesa_enable_sw_extensions(&(osmesa->mesa));
_mesa_enable_1_3_extensions(&(osmesa->mesa));
_mesa_enable_1_4_extensions(&(osmesa->mesa));
_mesa_enable_1_5_extensions(&(osmesa->mesa));
osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual);
if (!osmesa->gl_buffer) {
_mesa_destroy_visual( osmesa->gl_visual );
_mesa_free_context_data( &osmesa->mesa );
FREE(osmesa);
return NULL;
}
/* create front color buffer in user-provided memory (no back buffer) */
_mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT,
new_osmesa_renderbuffer(format));
_mesa_add_soft_renderbuffers(osmesa->gl_buffer,
GL_FALSE, /* color */
osmesa->gl_visual->haveDepthBuffer,
osmesa->gl_visual->haveStencilBuffer,
osmesa->gl_visual->haveAccumBuffer,
GL_FALSE, /* alpha */
GL_FALSE /* aux */ );
osmesa->format = format;
osmesa->buffer = NULL;
osmesa->width = 0;
osmesa->height = 0;
osmesa->userRowLength = 0;
osmesa->rowlength = 0;
osmesa->yup = GL_TRUE;
osmesa->rInd = rind;
osmesa->gInd = gind;
osmesa->bInd = bind;
osmesa->aInd = aind;
/* Initialize the software rasterizer and helper modules. */
{
GLcontext *ctx = &osmesa->mesa;
SWcontext *swrast;
TNLcontext *tnl;
if (!_swrast_CreateContext( ctx ) ||
!_ac_CreateContext( ctx ) ||
!_tnl_CreateContext( ctx ) ||
!_swsetup_CreateContext( ctx )) {
_mesa_destroy_visual(osmesa->gl_visual);
_mesa_free_context_data(ctx);
_mesa_free(osmesa);
return NULL;
}
_swsetup_Wakeup( ctx );
/* use default TCL pipeline */
tnl = TNL_CONTEXT(ctx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
/* Extend the software rasterizer with our optimized line and triangle
* drawing functions.
*/
swrast = SWRAST_CONTEXT( ctx );
swrast->choose_line = osmesa_choose_line;
swrast->choose_triangle = osmesa_choose_triangle;
}
}
return osmesa;
}
GLboolean gammaCreateContext( const __GLcontextModes *glVisual,
__DRIcontextPrivate *driContextPriv,
void *sharedContextPrivate)
{
GLcontext *ctx, *shareCtx;
__DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
gammaContextPtr gmesa;
gammaScreenPtr gammascrn;
GLINTSAREADRIPtr saPriv=(GLINTSAREADRIPtr)(((char*)sPriv->pSAREA)+
sizeof(drm_sarea_t));
struct dd_function_table functions;
gmesa = (gammaContextPtr) CALLOC( sizeof(*gmesa) );
if (!gmesa)
return GL_FALSE;
/* Init default driver functions then plug in our gamma-specific functions
* (the texture functions are especially important)
*/
_mesa_init_driver_functions( &functions );
gammaDDInitTextureFuncs( &functions );
/* Allocate the Mesa context */
if (sharedContextPrivate)
shareCtx = ((gammaContextPtr) sharedContextPrivate)->glCtx;
else
shareCtx = NULL;
gmesa->glCtx = _mesa_create_context(glVisual, shareCtx,
&functions, (void *) gmesa);
if (!gmesa->glCtx) {
FREE(gmesa);
return GL_FALSE;
}
gmesa->driContext = driContextPriv;
gmesa->driScreen = sPriv;
gmesa->driDrawable = NULL; /* Set by XMesaMakeCurrent */
gmesa->hHWContext = driContextPriv->hHWContext;
gmesa->driHwLock = &sPriv->pSAREA->lock;
gmesa->driFd = sPriv->fd;
gmesa->sarea = saPriv;
gammascrn = gmesa->gammaScreen = (gammaScreenPtr)(sPriv->private);
ctx = gmesa->glCtx;
ctx->Const.MaxTextureLevels = 13; /* 4K by 4K? Is that right? */
ctx->Const.MaxTextureUnits = 1; /* Permedia 3 */
ctx->Const.MaxTextureImageUnits = 1;
ctx->Const.MaxTextureCoordUnits = 1;
ctx->Const.MinLineWidth = 0.0;
ctx->Const.MaxLineWidth = 255.0;
ctx->Const.MinLineWidthAA = 0.0;
ctx->Const.MaxLineWidthAA = 65536.0;
ctx->Const.MinPointSize = 0.0;
ctx->Const.MaxPointSize = 255.0;
ctx->Const.MinPointSizeAA = 0.5; /* 4x4 quality mode */
ctx->Const.MaxPointSizeAA = 16.0;
ctx->Const.PointSizeGranularity = 0.25;
gmesa->texHeap = mmInit( 0, gmesa->gammaScreen->textureSize );
make_empty_list(&gmesa->TexObjList);
make_empty_list(&gmesa->SwappedOut);
gmesa->CurrentTexObj[0] = 0;
gmesa->CurrentTexObj[1] = 0; /* Permedia 3, second texture */
gmesa->RenderIndex = ~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, gamma_pipeline );
/* Configure swrast & TNL 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 );
gammaInitVB( ctx );
gammaDDInitExtensions( ctx );
/* XXX these should really go right after _mesa_init_driver_functions() */
gammaDDInitDriverFuncs( ctx );
gammaDDInitStateFuncs( ctx );
gammaDDInitSpanFuncs( ctx );
gammaDDInitTriFuncs( ctx );
gammaDDInitState( gmesa );
gammaInitTextureObjects( ctx );
driContextPriv->driverPrivate = (void *)gmesa;
GET_FIRST_DMA(gmesa->driFd, gmesa->hHWContext,
1, &gmesa->bufIndex, &gmesa->bufSize,
&gmesa->buf, &gmesa->bufCount, gammascrn);
#ifdef DO_VALIDATE
GET_FIRST_DMA(gmesa->driFd, gmesa->hHWContext,
1, &gmesa->WCbufIndex, &gmesa->WCbufSize,
&gmesa->WCbuf, &gmesa->WCbufCount, gammascrn);
#endif
switch (glVisual->depthBits) {
case 16:
gmesa->DeltaMode = DM_Depth16;
gmesa->depth_scale = 1.0f / 0xffff;
break;
case 24:
gmesa->DeltaMode = DM_Depth24;
gmesa->depth_scale = 1.0f / 0xffffff;
break;
case 32:
gmesa->DeltaMode = DM_Depth32;
gmesa->depth_scale = 1.0f / 0xffffffff;
break;
default:
break;
}
gmesa->DepthSize = glVisual->depthBits;
gmesa->Flags = GAMMA_FRONT_BUFFER;
gmesa->Flags |= (glVisual->doubleBufferMode ? GAMMA_BACK_BUFFER : 0);
gmesa->Flags |= (gmesa->DepthSize > 0 ? GAMMA_DEPTH_BUFFER : 0);
gmesa->EnabledFlags = GAMMA_FRONT_BUFFER;
gmesa->EnabledFlags |= (glVisual->doubleBufferMode ? GAMMA_BACK_BUFFER : 0);
if (gmesa->Flags & GAMMA_BACK_BUFFER) {
gmesa->readOffset = gmesa->drawOffset = gmesa->driScreen->fbHeight * gmesa->driScreen->fbWidth * gmesa->gammaScreen->cpp;
} else {
gmesa->readOffset = gmesa->drawOffset = 0;
}
gammaInitHW( gmesa );
driContextPriv->driverPrivate = (void *)gmesa;
return GL_TRUE;
}
/* Create the device specific context.
*/
GLboolean r128CreateContext( const __GLcontextModes *glVisual,
__DRIcontextPrivate *driContextPriv,
void *sharedContextPrivate )
{
GLcontext *ctx, *shareCtx;
__DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
r128ContextPtr rmesa;
r128ScreenPtr r128scrn;
int i;
/* Allocate the r128 context */
rmesa = (r128ContextPtr) CALLOC( sizeof(*rmesa) );
if ( !rmesa )
return GL_FALSE;
/* Allocate the Mesa context */
if (sharedContextPrivate)
shareCtx = ((r128ContextPtr) sharedContextPrivate)->glCtx;
else
shareCtx = NULL;
rmesa->glCtx = _mesa_create_context(glVisual, shareCtx, (void *) rmesa, GL_TRUE);
if (!rmesa->glCtx) {
FREE(rmesa);
return GL_FALSE;
}
driContextPriv->driverPrivate = rmesa;
ctx = rmesa->glCtx;
rmesa->driContext = driContextPriv;
rmesa->driScreen = sPriv;
rmesa->driDrawable = NULL;
rmesa->hHWContext = driContextPriv->hHWContext;
rmesa->driHwLock = &sPriv->pSAREA->lock;
rmesa->driFd = sPriv->fd;
r128scrn = rmesa->r128Screen = (r128ScreenPtr)(sPriv->private);
rmesa->sarea = (R128SAREAPrivPtr)((char *)sPriv->pSAREA +
r128scrn->sarea_priv_offset);
rmesa->CurrentTexObj[0] = NULL;
rmesa->CurrentTexObj[1] = NULL;
(void) memset( rmesa->texture_heaps, 0, sizeof( rmesa->texture_heaps ) );
make_empty_list( & rmesa->swapped );
rmesa->nr_heaps = r128scrn->numTexHeaps;
for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
rmesa->texture_heaps[i] = driCreateTextureHeap( i, rmesa,
r128scrn->texSize[i],
12,
R128_NR_TEX_REGIONS,
rmesa->sarea->texList[i],
& rmesa->sarea->texAge[i],
& rmesa->swapped,
sizeof( r128TexObj ),
(destroy_texture_object_t *) r128DestroyTexObj );
driSetTextureSwapCounterLocation( rmesa->texture_heaps[i],
& rmesa->c_textureSwaps );
}
rmesa->RenderIndex = -1; /* Impossible value */
rmesa->vert_buf = NULL;
rmesa->num_verts = 0;
/* Set the maximum texture size small enough that we can guarentee that
* all texture units can bind a maximal texture and have them both in
* texturable memory at once.
*/
ctx->Const.MaxTextureUnits = 2;
driCalculateMaxTextureLevels( rmesa->texture_heaps,
rmesa->nr_heaps,
& ctx->Const,
4,
10, /* max 2D texture size is 1024x1024 */
0, /* 3D textures unsupported. */
0, /* cube textures unsupported. */
0, /* texture rectangles unsupported. */
11,
GL_FALSE );
/* No wide points.
*/
ctx->Const.MinPointSize = 1.0;
ctx->Const.MinPointSizeAA = 1.0;
ctx->Const.MaxPointSize = 1.0;
ctx->Const.MaxPointSizeAA = 1.0;
/* No wide lines.
*/
ctx->Const.MinLineWidth = 1.0;
ctx->Const.MinLineWidthAA = 1.0;
ctx->Const.MaxLineWidth = 1.0;
ctx->Const.MaxLineWidthAA = 1.0;
ctx->Const.LineWidthGranularity = 1.0;
#if ENABLE_PERF_BOXES
rmesa->boxes = (getenv( "LIBGL_PERFORMANCE_BOXES" ) != NULL);
#endif
/* 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, r128_pipeline ); */
/* Configure swrast to match hardware characteristics:
*/
_swrast_allow_pixel_fog( ctx, GL_FALSE );
_swrast_allow_vertex_fog( ctx, GL_TRUE );
driInitExtensions( ctx, card_extensions, GL_TRUE );
if (sPriv->drmMinor >= 4)
_mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
r128InitVB( ctx );
r128InitTriFuncs( ctx );
r128DDInitDriverFuncs( ctx );
r128DDInitIoctlFuncs( ctx );
r128DDInitStateFuncs( ctx );
r128DDInitSpanFuncs( ctx );
r128DDInitTextureFuncs( ctx );
r128DDInitState( rmesa );
rmesa->do_irqs = (rmesa->r128Screen->irq && !getenv("R128_NO_IRQS"));
rmesa->vblank_flags = (rmesa->r128Screen->irq != 0)
? driGetDefaultVBlankFlags() : VBLANK_FLAG_NO_IRQ;
driContextPriv->driverPrivate = (void *)rmesa;
#if DO_DEBUG
R128_DEBUG = driParseDebugString( getenv( "R128_DEBUG" ),
debug_control );
#endif
return GL_TRUE;
}
/* Create the device specific context.
*/
GLboolean
radeonCreateContext( const __GLcontextModes *glVisual,
__DRIcontextPrivate *driContextPriv,
void *sharedContextPrivate)
{
__DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
radeonContextPtr rmesa;
GLcontext *ctx, *shareCtx;
int i;
assert(glVisual);
assert(driContextPriv);
assert(screen);
/* Allocate the Radeon context */
rmesa = (radeonContextPtr) CALLOC( sizeof(*rmesa) );
if ( !rmesa )
return GL_FALSE;
/* Allocate the Mesa context */
if (sharedContextPrivate)
shareCtx = ((radeonContextPtr) sharedContextPrivate)->glCtx;
else
shareCtx = NULL;
rmesa->glCtx = _mesa_create_context(glVisual, shareCtx, (void *) rmesa, GL_TRUE);
if (!rmesa->glCtx) {
FREE(rmesa);
return GL_FALSE;
}
driContextPriv->driverPrivate = rmesa;
/* Init radeon context data */
rmesa->dri.context = driContextPriv;
rmesa->dri.screen = sPriv;
rmesa->dri.drawable = NULL; /* Set by XMesaMakeCurrent */
rmesa->dri.hwContext = driContextPriv->hHWContext;
rmesa->dri.hwLock = &sPriv->pSAREA->lock;
rmesa->dri.fd = sPriv->fd;
rmesa->dri.drmMinor = sPriv->drmMinor;
rmesa->radeonScreen = screen;
rmesa->sarea = (RADEONSAREAPrivPtr)((GLubyte *)sPriv->pSAREA +
screen->sarea_priv_offset);
rmesa->dma.buf0_address = rmesa->radeonScreen->buffers->list[0].address;
(void) memset( rmesa->texture_heaps, 0, sizeof( rmesa->texture_heaps ) );
make_empty_list( & rmesa->swapped );
rmesa->nr_heaps = screen->numTexHeaps;
for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
rmesa->texture_heaps[i] = driCreateTextureHeap( i, rmesa,
screen->texSize[i],
12,
RADEON_NR_TEX_REGIONS,
rmesa->sarea->texList[i],
& rmesa->sarea->texAge[i],
& rmesa->swapped,
sizeof( radeonTexObj ),
(destroy_texture_object_t *) radeonDestroyTexObj );
driSetTextureSwapCounterLocation( rmesa->texture_heaps[i],
& rmesa->c_textureSwaps );
}
rmesa->swtcl.RenderIndex = ~0;
rmesa->lost_context = 1;
/* Set the maximum texture size small enough that we can guarentee that
* all texture units can bind a maximal texture and have them both in
* texturable memory at once.
*/
ctx = rmesa->glCtx;
ctx->Const.MaxTextureUnits = 2;
driCalculateMaxTextureLevels( rmesa->texture_heaps,
rmesa->nr_heaps,
& ctx->Const,
4,
11, /* max 2D texture size is 2048x2048 */
0, /* 3D textures unsupported. */
0, /* cube textures unsupported. */
11, /* max rect texture size is 2048x2048. */
12,
GL_FALSE );
ctx->Const.MaxTextureMaxAnisotropy = 16.0;
/* No wide points.
*/
ctx->Const.MinPointSize = 1.0;
ctx->Const.MinPointSizeAA = 1.0;
ctx->Const.MaxPointSize = 1.0;
ctx->Const.MaxPointSizeAA = 1.0;
ctx->Const.MinLineWidth = 1.0;
ctx->Const.MinLineWidthAA = 1.0;
ctx->Const.MaxLineWidth = 10.0;
ctx->Const.MaxLineWidthAA = 10.0;
ctx->Const.LineWidthGranularity = 0.0625;
/* Set maxlocksize (and hence vb size) small enough to avoid
* fallbacks in radeon_tcl.c. ie. guarentee that all vertices can
* fit in a single dma buffer for indexed rendering of quad strips,
* etc.
*/
ctx->Const.MaxArrayLockSize =
MIN2( ctx->Const.MaxArrayLockSize,
RADEON_BUFFER_SIZE / RADEON_MAX_TCL_VERTSIZE );
rmesa->boxes = (getenv("LIBGL_PERFORMANCE_BOXES") != NULL);
/* Initialize the software rasterizer and helper modules.
*/
_swrast_CreateContext( ctx );
_ac_CreateContext( ctx );
_tnl_CreateContext( ctx );
_swsetup_CreateContext( ctx );
_ae_create_context( ctx );
/* Install the customized pipeline:
*/
_tnl_destroy_pipeline( ctx );
_tnl_install_pipeline( ctx, radeon_pipeline );
ctx->Driver.FlushVertices = radeonFlushVertices;
/* Try and keep materials and vertices separate:
*/
_tnl_isolate_materials( ctx, GL_TRUE );
/* _mesa_allow_light_in_model( ctx, GL_FALSE ); */
/* Try and keep materials and vertices separate:
*/
_tnl_isolate_materials( ctx, GL_TRUE );
/* Configure swrast to match hardware characteristics:
*/
_swrast_allow_pixel_fog( ctx, GL_FALSE );
_swrast_allow_vertex_fog( ctx, GL_TRUE );
_math_matrix_ctr( &rmesa->TexGenMatrix[0] );
_math_matrix_ctr( &rmesa->TexGenMatrix[1] );
_math_matrix_ctr( &rmesa->tmpmat );
_math_matrix_set_identity( &rmesa->TexGenMatrix[0] );
_math_matrix_set_identity( &rmesa->TexGenMatrix[1] );
_math_matrix_set_identity( &rmesa->tmpmat );
driInitExtensions( ctx, card_extensions, GL_TRUE );
if (rmesa->dri.drmMinor >= 9)
_mesa_enable_extension( ctx, "GL_NV_texture_rectangle");
radeonInitDriverFuncs( ctx );
radeonInitIoctlFuncs( ctx );
radeonInitStateFuncs( ctx );
radeonInitSpanFuncs( ctx );
radeonInitTextureFuncs( ctx );
radeonInitState( rmesa );
radeonInitSwtcl( ctx );
rmesa->iw.irq_seq = -1;
rmesa->irqsEmitted = 0;
rmesa->do_irqs = (rmesa->radeonScreen->irq && !getenv("RADEON_NO_IRQS"));
rmesa->do_usleeps = !getenv("RADEON_NO_USLEEPS");
rmesa->vblank_flags = (rmesa->radeonScreen->irq != 0)
? driGetDefaultVBlankFlags() : VBLANK_FLAG_NO_IRQ;
rmesa->get_ust = (PFNGLXGETUSTPROC) glXGetProcAddress( (const GLubyte *) "__glXGetUST" );
if ( rmesa->get_ust == NULL ) {
rmesa->get_ust = get_ust_nop;
}
(*rmesa->get_ust)( & rmesa->swap_ust );
#if DO_DEBUG
RADEON_DEBUG = driParseDebugString( getenv( "RADEON_DEBUG" ),
debug_control );
#endif
if (getenv("RADEON_NO_RAST")) {
fprintf(stderr, "disabling 3D acceleration\n");
FALLBACK(rmesa, RADEON_FALLBACK_DISABLE, 1);
}
else if (getenv("RADEON_TCL_FORCE_ENABLE")) {
fprintf(stderr, "Enabling TCL support... this will probably crash\n");
fprintf(stderr, " your card if it isn't capable of TCL!\n");
rmesa->radeonScreen->chipset |= RADEON_CHIPSET_TCL;
} else if (getenv("RADEON_TCL_FORCE_DISABLE") ||
!(rmesa->radeonScreen->chipset & RADEON_CHIPSET_TCL)) {
rmesa->radeonScreen->chipset &= ~RADEON_CHIPSET_TCL;
fprintf(stderr, "disabling TCL support\n");
TCL_FALLBACK(rmesa->glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
}
if (rmesa->radeonScreen->chipset & RADEON_CHIPSET_TCL) {
if (!getenv("RADEON_NO_VTXFMT"))
radeonVtxfmtInit( ctx );
_tnl_need_dlist_norm_lengths( ctx, GL_FALSE );
}
return GL_TRUE;
}
GLboolean
sisCreateContext( const __GLcontextModes *glVisual,
__DRIcontextPrivate *driContextPriv,
void *sharedContextPrivate )
{
GLcontext *ctx, *shareCtx;
__DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
sisContextPtr smesa;
sisScreenPtr sisScreen;
int i;
struct dd_function_table functions;
smesa = (sisContextPtr)CALLOC( sizeof(*smesa) );
if (smesa == NULL)
return GL_FALSE;
/* Init default driver functions then plug in our SIS-specific functions
* (the texture functions are especially important)
*/
_mesa_init_driver_functions(&functions);
sisInitDriverFuncs(&functions);
sisInitTextureFuncs(&functions);
/* Allocate the Mesa context */
if (sharedContextPrivate)
shareCtx = ((sisContextPtr)sharedContextPrivate)->glCtx;
else
shareCtx = NULL;
smesa->glCtx = _mesa_create_context( glVisual, shareCtx,
&functions, (void *) smesa);
if (!smesa->glCtx) {
FREE(smesa);
return GL_FALSE;
}
driContextPriv->driverPrivate = smesa;
ctx = smesa->glCtx;
sisScreen = smesa->sisScreen = (sisScreenPtr)(sPriv->private);
smesa->driContext = driContextPriv;
smesa->driScreen = sPriv;
smesa->driDrawable = NULL;
smesa->hHWContext = driContextPriv->hHWContext;
smesa->driHwLock = &sPriv->pSAREA->lock;
smesa->driFd = sPriv->fd;
smesa->virtualX = sisScreen->screenX;
smesa->virtualY = sisScreen->screenY;
smesa->bytesPerPixel = sisScreen->cpp;
smesa->IOBase = sisScreen->mmio.map;
smesa->Chipset = sisScreen->deviceID;
smesa->irqEnabled = sisScreen->irqEnabled;
smesa->FbBase = sPriv->pFB;
smesa->displayWidth = sPriv->fbWidth;
smesa->frontPitch = sPriv->fbStride;
smesa->sarea = (SISSAREAPriv *)((char *)sPriv->pSAREA +
sisScreen->sarea_priv_offset);
#if defined(SIS_DUMP)
IOBase4Debug = GET_IOBase (smesa);
#endif
/* support ARGB8888 and RGB565 */
switch (smesa->bytesPerPixel)
{
case 4:
smesa->redMask = 0x00ff0000;
smesa->greenMask = 0x0000ff00;
smesa->blueMask = 0x000000ff;
smesa->alphaMask = 0xff000000;
smesa->colorFormat = DST_FORMAT_ARGB_8888;
break;
case 2:
smesa->redMask = 0xf800;
smesa->greenMask = 0x07e0;
smesa->blueMask = 0x001f;
smesa->alphaMask = 0;
smesa->colorFormat = DST_FORMAT_RGB_565;
break;
default:
sis_fatal_error("Bad bytesPerPixel.\n");
}
/* Parse configuration files */
driParseConfigFiles (&smesa->optionCache, &sisScreen->optionCache,
sisScreen->driScreen->myNum, "sis");
/* TODO: index mode */
smesa->CurrentQueueLenPtr = &(smesa->sarea->QueueLength);
smesa->FrameCountPtr = &(smesa->sarea->FrameCount);
/* set AGP */
smesa->AGPSize = sisScreen->agp.size;
smesa->AGPBase = sisScreen->agp.map;
smesa->AGPAddr = sisScreen->agp.handle;
/* Create AGP command buffer */
if (smesa->AGPSize != 0 &&
!driQueryOptionb(&smesa->optionCache, "agp_disable"))
{
smesa->vb = sisAllocAGP(smesa, 64 * 1024, &smesa->vb_agp_handle);
if (smesa->vb != NULL) {
smesa->using_agp = GL_TRUE;
smesa->vb_cur = smesa->vb;
smesa->vb_last = smesa->vb;
smesa->vb_end = smesa->vb + 64 * 1024;
smesa->vb_agp_offset = ((long)smesa->vb - (long)smesa->AGPBase +
(long)smesa->AGPAddr);
}
}
if (!smesa->using_agp) {
smesa->vb = malloc(64 * 1024);
if (smesa->vb == NULL) {
FREE(smesa);
return GL_FALSE;
}
smesa->vb_cur = smesa->vb;
smesa->vb_last = smesa->vb;
smesa->vb_end = smesa->vb + 64 * 1024;
}
smesa->GlobalFlag = 0L;
smesa->Fallback = 0;
/* Initialize the software rasterizer and helper modules.
*/
_swrast_CreateContext( ctx );
_ac_CreateContext( ctx );
_tnl_CreateContext( ctx );
_swsetup_CreateContext( ctx );
_swrast_allow_pixel_fog( ctx, GL_TRUE );
_swrast_allow_vertex_fog( ctx, GL_FALSE );
_tnl_allow_pixel_fog( ctx, GL_TRUE );
_tnl_allow_vertex_fog( ctx, GL_FALSE );
/* XXX these should really go right after _mesa_init_driver_functions() */
sisDDInitStateFuncs( ctx );
sisDDInitState( smesa ); /* Initializes smesa->zFormat, important */
sisInitTriFuncs( ctx );
sisDDInitSpanFuncs( ctx );
sisDDInitStencilFuncs( ctx );
driInitExtensions( ctx, card_extensions, GL_FALSE );
/* TODO */
/* smesa->blockWrite = SGRAMbw = IsBlockWrite (); */
smesa->blockWrite = GL_FALSE;
for (i = 0; i < SIS_MAX_TEXTURES; i++) {
smesa->TexStates[i] = 0;
smesa->PrevTexFormat[i] = 0;
}
return GL_TRUE;
}