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/* $XFree86$ */
/**************************************************************************
Copyright 1999, 2000 ATI Technologies Inc. and 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
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
ATI, PRECISION INSIGHT AND/OR THEIR 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:
* Kevin E. Martin <kevin@precisioninsight.com>
*
*/
#include "r128_init.h"
#include "r128_mesa.h"
#include "r128_xmesa.h"
#include "r128_context.h"
#include "r128_dd.h"
#include "r128_state.h"
#include "r128_span.h"
#include "r128_tex.h"
#include "r128_vb.h"
#include "r128_pipeline.h"
#include "context.h"
#include "simple_list.h"
/* Create the device specific context */
r128ContextPtr r128CreateContext(GLvisual *glVisual,
XMesaContext c,
XMesaContext share_list)
{
r128ContextPtr r128ctx;
r128ScreenPtr r128scrn;
GLcontext *shareCtx, *glCtx;
int i;
r128ctx = (r128ContextPtr)Xmalloc(sizeof(*r128ctx));
if (!r128ctx) return NULL;
if (share_list)
shareCtx = ((r128ContextPtr)(share_list->private))->glCtx;
else
shareCtx = NULL;
/* Initialize r128Context */
r128ctx->xmCtx = c;
r128ctx->glCtx = gl_create_context(glVisual,
shareCtx,
(void *)r128ctx,
GL_TRUE);
r128ctx->display = c->display;
r128ctx->driContext = c->driContextPriv;
r128ctx->driDrawable = NULL; /* Set by XMesaMakeCurrent */
r128ctx->dirty = R128_ALL_DIRTY;
r128ctx->dirty_context = R128_CTX_ALL_DIRTY;
if (getenv("LIBGL_SOFTWARE_RENDERING"))
r128ctx->SWonly = GL_TRUE;
else
r128ctx->SWonly = GL_FALSE;
if (getenv("LIBGL_NO_SOFTWARE_FALLBACKS"))
r128ctx->SWfallbackDisable = GL_TRUE;
else
r128ctx->SWfallbackDisable = GL_FALSE;
r128scrn = r128ctx->r128Screen =
(r128ScreenPtr)(c->driContextPriv->driScreenPriv->private);
r128ctx->CurrentTexObj[0] = NULL;
r128ctx->CurrentTexObj[1] = NULL;
make_empty_list(&r128ctx->SwappedOut);
for (i = 0; i < R128_NR_TEX_HEAPS; i++) {
make_empty_list(&r128ctx->TexObjList[i]);
r128ctx->texHeap[i] = mmInit(0, r128scrn->texSize[i]);
r128ctx->lastTexAge[i] = -1;
}
r128ctx->lastSwapAge = 0;
r128ctx->useFastPath = GL_FALSE;
r128ctx->vb.start = 0;
r128ctx->vb.count = 0;
r128ctx->vb.size = 0;
r128ctx->vb.index = 0;
r128ctx->vb.buf = NULL;
r128ctx->vb.done = GL_TRUE;
if (getenv("LIBGL_DISABLE_VERTEX_BUFFERS"))
r128ctx->disableVB = GL_TRUE;
else
r128ctx->disableVB = GL_FALSE;
r128ctx->CCEbuf = (CARD32 *)malloc(sizeof(*r128ctx->CCEbuf) *
r128scrn->ringEntries);
r128ctx->CCEcount = 0;
/* Initialize GLcontext */
glCtx = r128ctx->glCtx;
r128DDInitExtensions(glCtx);
r128DDInitDriverFuncs(glCtx);
r128DDInitStateFuncs(glCtx);
r128DDInitSpanFuncs(glCtx);
r128DDInitTextureFuncs(glCtx);
glCtx->Driver.TriangleCaps = (DD_TRI_CULL
| DD_TRI_LIGHT_TWOSIDE
| DD_TRI_OFFSET);
#if 0
/* FIXME */
glCtx->TriangleCaps |= DD_CLIP_FOG_COORD;
#endif
/* Reset Mesa's current 2D texture pointers to the driver's textures */
glCtx->Shared->DefaultD[2][0].DriverData = NULL;
glCtx->Shared->DefaultD[2][1].DriverData = NULL;
/* If Mesa has current a vertex buffer, make sure the driver's VB
data is up to date */
if (glCtx->VB) r128DDRegisterVB(glCtx->VB);
/* Register the fast path */
if (glCtx->NrPipelineStages)
glCtx->NrPipelineStages =
r128RegisterPipelineStages(glCtx->PipelineStage,
glCtx->PipelineStage,
glCtx->NrPipelineStages);
r128DDInitState(r128ctx);
return r128ctx;
}
/* Destroy the device specific context */
void r128DestroyContext(r128ContextPtr r128ctx)
{
if (r128ctx) {
r128TexObjPtr t, next_t;
int i;
free(r128ctx->CCEbuf);
for (i = 0; i < R128_NR_TEX_HEAPS; i++) {
foreach_s (t, next_t, &r128ctx->TexObjList[i])
r128DestroyTexObj(r128ctx, t);
}
foreach_s (t, next_t, &r128ctx->SwappedOut)
r128DestroyTexObj(r128ctx, t);
gl_destroy_context(r128ctx->glCtx);
Xfree(r128ctx);
}
}
/* Load the device specific context into the hardware. The actual
setting of the hardware state is done in the r128UpdateHWState(). */
r128ContextPtr r128MakeCurrent(r128ContextPtr oldCtx,
r128ContextPtr newCtx,
__DRIdrawablePrivate *dPriv)
{
if (oldCtx) {
newCtx->dirty = R128_REQUIRE_QUIESCENCE;
if (oldCtx != newCtx) {
newCtx->dirty |= R128_UPDATE_CONTEXT;
newCtx->dirty_context = R128_CTX_ALL_DIRTY;
}
if (oldCtx->driDrawable != dPriv)
newCtx->dirty |= R128_UPDATE_WINPOS;
} else {
newCtx->dirty = R128_ALL_DIRTY;
newCtx->dirty_context = R128_CTX_ALL_DIRTY;
}
newCtx->driDrawable = dPriv;
return newCtx;
}
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