Import a classic DRI driver for nv0x-nv2x.

1 files changed, 142 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nv10_state_tex.c b/src/mesa/drivers/dri/nouveau/nv10_state_tex.c
new file mode 100644
index 00000000000..e5d4f3d18d8
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nv10_state_tex.c
@@ -0,0 +1,142 @@
+/*
+ * 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_gldefs.h"
+#include "nouveau_texture.h"
+#include "nouveau_class.h"
+#include "nouveau_util.h"
+#include "nv10_driver.h"
+
+void
+nv10_emit_tex_gen(GLcontext *ctx, int emit)
+{
+}
+
+static uint32_t
+get_tex_format(struct gl_texture_image *ti)
+{
+	switch (ti->TexFormat) {
+	case MESA_FORMAT_ARGB8888:
+		return NV10TCL_TX_FORMAT_FORMAT_A8R8G8B8;
+
+	case MESA_FORMAT_ARGB1555:
+		return NV10TCL_TX_FORMAT_FORMAT_A1R5G5B5;
+
+	case MESA_FORMAT_ARGB4444:
+		return NV10TCL_TX_FORMAT_FORMAT_A4R4G4B4;
+
+	case MESA_FORMAT_RGB565:
+		return NV10TCL_TX_FORMAT_FORMAT_R5G6B5;
+
+	case MESA_FORMAT_A8:
+		return NV10TCL_TX_FORMAT_FORMAT_A8;
+
+	case MESA_FORMAT_L8:
+		return NV10TCL_TX_FORMAT_FORMAT_L8;
+
+	case MESA_FORMAT_CI8:
+		return NV10TCL_TX_FORMAT_FORMAT_INDEX8;
+
+	default:
+		assert(0);
+	}
+}
+
+void
+nv10_emit_tex_obj(GLcontext *ctx, int emit)
+{
+	const int i = emit - NOUVEAU_STATE_TEX_OBJ0;
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	struct nouveau_bo_context *bctx = context_bctx_i(ctx, TEXTURE, i);
+	const int bo_flags = NOUVEAU_BO_RD | NOUVEAU_BO_GART | NOUVEAU_BO_VRAM;
+	struct gl_texture_object *t;
+	struct nouveau_surface *s;
+	struct gl_texture_image *ti;
+	uint32_t tx_format, tx_filter, tx_enable;
+
+	if (!ctx->Texture.Unit[i]._ReallyEnabled) {
+		BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
+		OUT_RING(chan, 0);
+		return;
+	}
+
+	t = ctx->Texture.Unit[i]._Current;
+	s = &to_nouveau_texture(t)->surfaces[t->BaseLevel];
+	ti = t->Image[0][t->BaseLevel];
+
+	nouveau_texture_validate(ctx, t);
+
+	/* Recompute the texturing registers. */
+	tx_format = nvgl_wrap_mode(t->WrapT) << 28
+		| nvgl_wrap_mode(t->WrapS) << 24
+		| ti->HeightLog2 << 20
+		| ti->WidthLog2 << 16
+		| get_tex_format(ti)
+		| 5 << 4 | 1 << 12;
+
+	tx_filter = nvgl_filter_mode(t->MagFilter) << 28
+		| nvgl_filter_mode(t->MinFilter) << 24;
+
+	tx_enable = NV10TCL_TX_ENABLE_ENABLE
+		| log2i(t->MaxAnisotropy) << 4;
+
+	if (t->MinFilter != GL_NEAREST &&
+	    t->MinFilter != GL_LINEAR) {
+		int lod_min = t->MinLod;
+		int lod_max = MIN2(t->MaxLod, t->_MaxLambda);
+		int lod_bias = t->LodBias
+			+ ctx->Texture.Unit[i].LodBias;
+
+		lod_max = CLAMP(lod_max, 0, 15);
+		lod_min = CLAMP(lod_min, 0, 15);
+		lod_bias = CLAMP(lod_bias, 0, 15);
+
+		tx_format |= NV10TCL_TX_FORMAT_MIPMAP;
+		tx_filter |= lod_bias << 8;
+		tx_enable |= lod_min << 26
+			| lod_max << 14;
+	}
+
+	/* Write it to the hardware. */
+	nouveau_bo_mark(bctx, celsius, NV10TCL_TX_FORMAT(i),
+			s->bo, tx_format, 0,
+			NV10TCL_TX_FORMAT_DMA0,
+			NV10TCL_TX_FORMAT_DMA1,
+			bo_flags | NOUVEAU_BO_OR);
+
+	nouveau_bo_markl(bctx, celsius, NV10TCL_TX_OFFSET(i),
+			 s->bo, 0, bo_flags);
+
+	BEGIN_RING(chan, celsius, NV10TCL_TX_FILTER(i), 1);
+	OUT_RING(chan, tx_filter);
+
+	BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(i), 1);
+	OUT_RING(chan, tx_enable);
+}
+