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/*
* Copyright (C) 2009 Francisco Jerez.
* 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 the rights to use, copy, modify, merge, publish,
* distribute, sublicense, 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 NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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.
*
*/
#include "nouveau_driver.h"
#include "nouveau_context.h"
#include "nouveau_fbo.h"
#include "nouveau_util.h"
#include "nouveau_class.h"
#include "nv04_driver.h"
struct nouveau_grobj *
nv04_context_engine(GLcontext *ctx)
{
struct nv04_context *nctx = to_nv04_context(ctx);
struct nouveau_screen *screen = nctx->base.screen;
struct nouveau_grobj *fahrenheit;
if (ctx->Texture.Unit[0].EnvMode == GL_COMBINE ||
ctx->Texture.Unit[0].EnvMode == GL_BLEND ||
ctx->Texture.Unit[1]._ReallyEnabled ||
ctx->Stencil.Enabled)
fahrenheit = screen->eng3dm;
else
fahrenheit = screen->eng3d;
if (fahrenheit != nctx->eng3d) {
nctx->eng3d = fahrenheit;
if (nv04_mtex_engine(fahrenheit)) {
context_dirty_i(ctx, TEX_ENV, 0);
context_dirty_i(ctx, TEX_ENV, 1);
context_dirty_i(ctx, TEX_OBJ, 0);
context_dirty_i(ctx, TEX_OBJ, 1);
context_dirty(ctx, CONTROL);
context_dirty(ctx, BLEND);
} else {
context_bctx_i(ctx, TEXTURE, 1);
context_dirty_i(ctx, TEX_ENV, 0);
context_dirty_i(ctx, TEX_OBJ, 0);
context_dirty(ctx, CONTROL);
context_dirty(ctx, BLEND);
}
}
return fahrenheit;
}
static void
init_dummy_texture(GLcontext *ctx)
{
struct nouveau_surface *s = &to_nv04_context(ctx)->dummy_texture;
nouveau_surface_alloc(ctx, s, SWIZZLED,
NOUVEAU_BO_MAP | NOUVEAU_BO_VRAM,
MESA_FORMAT_ARGB8888, 1, 1);
nouveau_bo_map(s->bo, NOUVEAU_BO_WR);
*(uint32_t *)s->bo->map = 0xffffffff;
nouveau_bo_unmap(s->bo);
}
GLcontext *
nv04_context_create(struct nouveau_screen *screen, const GLvisual *visual,
GLcontext *share_ctx)
{
struct nv04_context *nctx;
GLcontext *ctx;
nctx = CALLOC_STRUCT(nv04_context);
if (!nctx)
return NULL;
ctx = &nctx->base.base;
nouveau_context_init(ctx, screen, visual, share_ctx);
ctx->Const.MaxTextureCoordUnits = NV04_TEXTURE_UNITS;
ctx->Const.MaxTextureImageUnits = NV04_TEXTURE_UNITS;
ctx->Const.MaxTextureUnits = NV04_TEXTURE_UNITS;
ctx->Const.MaxTextureMaxAnisotropy = 2;
ctx->Const.MaxTextureLodBias = 15;
init_dummy_texture(ctx);
nv04_render_init(ctx);
return ctx;
}
void
nv04_context_destroy(GLcontext *ctx)
{
nv04_render_destroy(ctx);
nouveau_surface_ref(NULL, &to_nv04_context(ctx)->dummy_texture);
FREE(ctx);
}
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