From bfb5dc68fcc9f5dee71f66d9499b8bdcde9627ea Mon Sep 17 00:00:00 2001
From: Francisco Jerez <currojerez@riseup.net>
Date: Mon, 1 Feb 2010 01:19:10 +0100
Subject: Import a classic DRI driver for nv0x-nv2x.

---
 src/mesa/drivers/dri/nouveau/nv10_context.c | 91 +++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 src/mesa/drivers/dri/nouveau/nv10_context.c

(limited to 'src/mesa/drivers/dri/nouveau/nv10_context.c')

diff --git a/src/mesa/drivers/dri/nouveau/nv10_context.c b/src/mesa/drivers/dri/nouveau/nv10_context.c
new file mode 100644
index 0000000000..d1afa87c8a
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nv10_context.c
@@ -0,0 +1,91 @@
+/*
+ * 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 "nv10_driver.h"
+
+static void
+nv10_clear(GLcontext *ctx, GLbitfield buffers)
+{
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(
+		ctx->DrawBuffer);
+
+	nouveau_validate_framebuffer(ctx);
+
+	/* Clear the LMA depth buffer, if present. */
+	if ((buffers & BUFFER_BIT_DEPTH) && ctx->Depth.Mask &&
+	    nfb->lma_bo) {
+		struct nouveau_surface *s = &to_nouveau_renderbuffer(
+			nfb->base._DepthBuffer->Wrapped)->surface;
+
+		BEGIN_RING(chan, celsius, NV17TCL_LMA_DEPTH_FILL_VALUE, 1);
+		OUT_RING(chan, pack_zs_f(s->format, ctx->Depth.Clear, 0));
+		BEGIN_RING(chan, celsius, NV17TCL_LMA_DEPTH_BUFFER_CLEAR, 1);
+		OUT_RING(chan, 1);
+	}
+
+	nouveau_clear(ctx, buffers);
+}
+
+GLcontext *
+nv10_context_create(struct nouveau_screen *screen, const GLvisual *visual,
+		    GLcontext *share_ctx)
+{
+	struct nouveau_context *nctx;
+	GLcontext *ctx;
+
+	nctx = CALLOC_STRUCT(nouveau_context);
+	if (!nctx)
+		return NULL;
+
+	ctx = &nctx->base;
+	nouveau_context_init(ctx, screen, visual, share_ctx);
+
+	ctx->Const.MaxTextureLevels = 12;
+	ctx->Const.MaxTextureCoordUnits = NV10_TEXTURE_UNITS;
+	ctx->Const.MaxTextureImageUnits = NV10_TEXTURE_UNITS;
+	ctx->Const.MaxTextureUnits = NV10_TEXTURE_UNITS;
+	ctx->Const.MaxTextureMaxAnisotropy = 2;
+	ctx->Const.MaxTextureLodBias = 15;
+	ctx->Driver.Clear = nv10_clear;
+
+	nv10_render_init(ctx);
+
+	return ctx;
+}
+
+void
+nv10_context_destroy(GLcontext *ctx)
+{
+	nv10_render_destroy(ctx);
+	FREE(ctx);
+}
-- 
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