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;
}
GLboolean s3vCreateContext(const __GLcontextModes *glVisual,
__DRIcontextPrivate *driContextPriv,
void *sharedContextPrivate)
{
GLcontext *ctx, *shareCtx;
__DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
s3vContextPtr vmesa;
s3vScreenPtr s3vScrn;
S3VSAREAPtr saPriv=(S3VSAREAPtr)(((char*)sPriv->pSAREA) +
sizeof(drm_sarea_t));
struct dd_function_table functions;
DEBUG_WHERE(("*** s3vCreateContext ***\n"));
vmesa = (s3vContextPtr) CALLOC( sizeof(*vmesa) );
if ( !vmesa ) return GL_FALSE;
/* Allocate the Mesa context */
if (sharedContextPrivate)
shareCtx = ((s3vContextPtr) sharedContextPrivate)->glCtx;
else
shareCtx = NULL;
_mesa_init_driver_functions(&functions);
vmesa->glCtx = _mesa_create_context(glVisual, shareCtx, &functions,
(void *)vmesa);
if (!vmesa->glCtx) {
FREE(vmesa);
return GL_FALSE;
}
vmesa->driContext = driContextPriv;
vmesa->driScreen = sPriv;
vmesa->driDrawable = NULL; /* Set by XMesaMakeCurrent */
vmesa->hHWContext = driContextPriv->hHWContext;
vmesa->driHwLock = (drmLock *)&sPriv->pSAREA->lock;
vmesa->driFd = sPriv->fd;
vmesa->sarea = saPriv;
s3vScrn = vmesa->s3vScreen = (s3vScreenPtr)(sPriv->private);
ctx = vmesa->glCtx;
ctx->Const.MaxTextureLevels = 11; /* it is (11-1) -> 1024 * 1024 FIXME */
ctx->Const.MaxTextureUnits = 1; /* FIXME: or 2 ? */
/* 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;
ctx->Const.MaxDrawBuffers = 1;
vmesa->texHeap = mmInit( 0, vmesa->s3vScreen->textureSize );
DEBUG(("vmesa->s3vScreen->textureSize = 0x%x\n",
vmesa->s3vScreen->textureSize));
/* NOTE */
/* mmInit(offset, size); */
/* allocates a structure like this:
struct mem_block_t {
struct mem_block_t *next;
struct mem_block_t *heap;
int ofs,size;
int align;
int free:1;
int reserved:1;
};
*/
make_empty_list(&vmesa->TexObjList);
make_empty_list(&vmesa->SwappedOut);
vmesa->CurrentTexObj[0] = 0;
vmesa->CurrentTexObj[1] = 0; /* FIXME */
vmesa->RenderIndex = ~0;
/* Initialize the software rasterizer and helper modules.
*/
_swrast_CreateContext( ctx );
_vbo_CreateContext( ctx );
_tnl_CreateContext( ctx );
_swsetup_CreateContext( ctx );
/* Install the customized pipeline:
*/
#if 0
_tnl_destroy_pipeline( ctx );
_tnl_install_pipeline( ctx, s3v_pipeline );
#endif
/* Configure swrast to match hardware characteristics:
*/
#if 0
_swrast_allow_pixel_fog( ctx, GL_FALSE );
_swrast_allow_vertex_fog( ctx, GL_TRUE );
#endif
vmesa->_3d_mode = 0;
/* 3D lines / gouraud tris */
vmesa->CMD = ( AUTO_EXEC_ON | HW_CLIP_ON | DEST_COL_1555
| FOG_OFF | ALPHA_OFF | Z_OFF | Z_UPDATE_OFF
| Z_LESS | TEX_WRAP_ON | TEX_MODULATE | LINEAR
| TEX_COL_ARGB1555 | CMD_3D );
vmesa->_alpha[0] = vmesa->_alpha[1] = ALPHA_OFF;
vmesa->alpha_cmd = vmesa->_alpha[0];
vmesa->_tri[0] = DO_GOURAUD_TRI;
vmesa->_tri[1] = DO_TEX_LIT_TRI;
vmesa->prim_cmd = vmesa->_tri[0];
/* printf("first vmesa->CMD = 0x%x\n", vmesa->CMD); */
vmesa->TexOffset = vmesa->s3vScreen->texOffset;
s3vInitVB( ctx );
s3vInitExtensions( ctx );
s3vInitDriverFuncs( ctx );
s3vInitStateFuncs( ctx );
s3vInitSpanFuncs( ctx );
s3vInitTextureFuncs( ctx );
s3vInitTriFuncs( ctx );
s3vInitState( vmesa );
driContextPriv->driverPrivate = (void *)vmesa;
/* HACK */
vmesa->bufSize = S3V_DMA_BUF_SZ;
DEBUG(("vmesa->bufSize = %i\n", vmesa->bufSize));
DEBUG(("vmesa->bufCount = %i\n", vmesa->bufCount));
/* dma init */
DEBUG_BUFS(("GET_FIRST_DMA\n"));
vmesa->_bufNum = 0;
GET_FIRST_DMA(vmesa->driFd, vmesa->hHWContext,
1, &(vmesa->bufIndex[0]), &(vmesa->bufSize),
&vmesa->_buf[0], &vmesa->bufCount, s3vScrn);
GET_FIRST_DMA(vmesa->driFd, vmesa->hHWContext,
1, &(vmesa->bufIndex[1]), &(vmesa->bufSize),
&vmesa->_buf[1], &vmesa->bufCount, s3vScrn);
vmesa->buf = vmesa->_buf[vmesa->_bufNum];
/*
vmesa->CMD = (AUTO_EXEC_ON | HW_CLIP_ON | DEST_COL_1555
| FOG_OFF | ALPHA_OFF | Z_OFF | Z_UPDATE_OFF
| DO_GOURAUD_TRI | CMD_3D);
vmesa->TexOffset = vmesa->s3vScreen->texOffset;
*/
/* ... but we should support only 15 bit in virge (out of 8/15/24)... */
DEBUG(("glVisual->depthBits = %i\n", glVisual->depthBits));
switch (glVisual->depthBits) {
case 8:
break;
case 15:
case 16:
vmesa->depth_scale = 1.0f / 0xffff;
break;
case 24:
vmesa->depth_scale = 1.0f / 0xffffff;
break;
default:
break;
}
vmesa->cull_zero = 0.0f;
vmesa->DepthSize = glVisual->depthBits;
vmesa->Flags = S3V_FRONT_BUFFER;
vmesa->Flags |= (glVisual->doubleBufferMode ? S3V_BACK_BUFFER : 0);
vmesa->Flags |= (vmesa->DepthSize > 0 ? S3V_DEPTH_BUFFER : 0);
vmesa->EnabledFlags = S3V_FRONT_BUFFER;
vmesa->EnabledFlags |= (glVisual->doubleBufferMode ? S3V_BACK_BUFFER : 0);
if (vmesa->Flags & S3V_BACK_BUFFER) {
vmesa->readOffset = vmesa->drawOffset = vmesa->s3vScreen->backOffset;
} else {
vmesa->readOffset = vmesa->drawOffset = 0;
}
s3vInitHW( vmesa );
driContextPriv->driverPrivate = (void *)vmesa;
return GL_TRUE;
}
