From 1a812ab57a71d16e45ca44de7ae0570d2bd46674 Mon Sep 17 00:00:00 2001
From: Francisco Jerez <currojerez@riseup.net>
Date: Thu, 18 Mar 2010 14:13:36 +0100
Subject: [PATCH] dri/nouveau: Implement texture matrices.

---
 src/mesa/drivers/dri/nouveau/nouveau_state.c  |  7 +++++++
 src/mesa/drivers/dri/nouveau/nouveau_state.h  |  4 ++++
 src/mesa/drivers/dri/nouveau/nv04_context.c   |  4 ++++
 src/mesa/drivers/dri/nouveau/nv10_context.c   |  4 ++++
 src/mesa/drivers/dri/nouveau/nv10_driver.h    |  3 +++
 src/mesa/drivers/dri/nouveau/nv10_state_tex.c | 25 +++++++++++++++++++++++++
 src/mesa/drivers/dri/nouveau/nv20_context.c   |  4 ++++
 src/mesa/drivers/dri/nouveau/nv20_driver.h    |  3 +++
 src/mesa/drivers/dri/nouveau/nv20_state_tex.c | 24 ++++++++++++++++++++++++
 9 files changed, 78 insertions(+)

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_state.c b/src/mesa/drivers/dri/nouveau/nouveau_state.c
index bc61045..603a46e 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_state.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_state.c
@@ -454,12 +454,19 @@ nouveau_state_emit(GLcontext *ctx)
 static void
 nouveau_update_state(GLcontext *ctx, GLbitfield new_state)
 {
+	int i;
+
 	if (new_state & (_NEW_PROJECTION | _NEW_MODELVIEW))
 		context_dirty(ctx, PROJECTION);
 
 	if (new_state & _NEW_MODELVIEW)
 		context_dirty(ctx, MODELVIEW);
 
+	if (new_state & _NEW_TEXTURE_MATRIX) {
+		for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++)
+			context_dirty_i(ctx, TEX_MAT, i);
+	}
+
 	if (new_state & _NEW_CURRENT_ATTRIB &&
 	    new_state & _NEW_LIGHT) {
 		context_dirty(ctx, MATERIAL_FRONT_AMBIENT);
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_state.h b/src/mesa/drivers/dri/nouveau/nouveau_state.h
index d01d962..38ac975 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_state.h
+++ b/src/mesa/drivers/dri/nouveau/nouveau_state.h
@@ -89,6 +89,10 @@ enum {
 	NOUVEAU_STATE_TEX_GEN1,
 	NOUVEAU_STATE_TEX_GEN2,
 	NOUVEAU_STATE_TEX_GEN3,
+	NOUVEAU_STATE_TEX_MAT0,
+	NOUVEAU_STATE_TEX_MAT1,
+	NOUVEAU_STATE_TEX_MAT2,
+	NOUVEAU_STATE_TEX_MAT3,
 	NOUVEAU_STATE_TEX_OBJ0,
 	NOUVEAU_STATE_TEX_OBJ1,
 	NOUVEAU_STATE_TEX_OBJ2,
diff --git a/src/mesa/drivers/dri/nouveau/nv04_context.c b/src/mesa/drivers/dri/nouveau/nv04_context.c
index 3624b3a..6834f7c 100644
--- a/src/mesa/drivers/dri/nouveau/nv04_context.c
+++ b/src/mesa/drivers/dri/nouveau/nv04_context.c
@@ -276,6 +276,10 @@ const struct nouveau_driver nv04_driver = {
 		nouveau_emit_nothing,
 		nouveau_emit_nothing,
 		nouveau_emit_nothing,
+		nouveau_emit_nothing,
+		nouveau_emit_nothing,
+		nouveau_emit_nothing,
+		nouveau_emit_nothing,
 		nv04_emit_tex_obj,
 		nv04_emit_tex_obj,
 		nouveau_emit_nothing,
diff --git a/src/mesa/drivers/dri/nouveau/nv10_context.c b/src/mesa/drivers/dri/nouveau/nv10_context.c
index 860d0ae..d008063 100644
--- a/src/mesa/drivers/dri/nouveau/nv10_context.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_context.c
@@ -412,6 +412,10 @@ const struct nouveau_driver nv10_driver = {
 		nv10_emit_tex_gen,
 		nouveau_emit_nothing,
 		nouveau_emit_nothing,
+		nv10_emit_tex_mat,
+		nv10_emit_tex_mat,
+		nouveau_emit_nothing,
+		nouveau_emit_nothing,
 		nv10_emit_tex_obj,
 		nv10_emit_tex_obj,
 		nouveau_emit_nothing,
diff --git a/src/mesa/drivers/dri/nouveau/nv10_driver.h b/src/mesa/drivers/dri/nouveau/nv10_driver.h
index d662712..cefd6c6 100644
--- a/src/mesa/drivers/dri/nouveau/nv10_driver.h
+++ b/src/mesa/drivers/dri/nouveau/nv10_driver.h
@@ -134,6 +134,9 @@ void
 nv10_emit_tex_gen(GLcontext *ctx, int emit);
 
 void
+nv10_emit_tex_mat(GLcontext *ctx, int emit);
+
+void
 nv10_emit_tex_obj(GLcontext *ctx, int emit);
 
 /* nv10_state_tnl.c */
diff --git a/src/mesa/drivers/dri/nouveau/nv10_state_tex.c b/src/mesa/drivers/dri/nouveau/nv10_state_tex.c
index 02a5ca7..9214872 100644
--- a/src/mesa/drivers/dri/nouveau/nv10_state_tex.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_state_tex.c
@@ -32,11 +32,36 @@
 #include "nouveau_util.h"
 #include "nv10_driver.h"
 
+#define TX_MATRIX(i) (NV10TCL_TX0_MATRIX(0) + 64 * (i))
+
 void
 nv10_emit_tex_gen(GLcontext *ctx, int emit)
 {
 }
 
+void
+nv10_emit_tex_mat(GLcontext *ctx, int emit)
+{
+	const int i = emit - NOUVEAU_STATE_TEX_MAT0;
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+
+	if (nctx->fallback == HWTNL &&
+	    ((ctx->Texture._TexMatEnabled & 1 << i) ||
+	     ctx->Texture.Unit[i]._GenFlags)) {
+		BEGIN_RING(chan, celsius, NV10TCL_TX_MATRIX_ENABLE(i), 1);
+		OUT_RING(chan, 1);
+
+		BEGIN_RING(chan, celsius, TX_MATRIX(i), 16);
+		OUT_RINGm(chan, ctx->TextureMatrixStack[i].Top->m);
+
+	} else {
+		BEGIN_RING(chan, celsius, NV10TCL_TX_MATRIX_ENABLE(i), 1);
+		OUT_RING(chan, 0);
+	}
+}
+
 static uint32_t
 get_tex_format_pot(struct gl_texture_image *ti)
 {
diff --git a/src/mesa/drivers/dri/nouveau/nv20_context.c b/src/mesa/drivers/dri/nouveau/nv20_context.c
index db39ef7..99df347 100644
--- a/src/mesa/drivers/dri/nouveau/nv20_context.c
+++ b/src/mesa/drivers/dri/nouveau/nv20_context.c
@@ -501,6 +501,10 @@ const struct nouveau_driver nv20_driver = {
 		nv10_emit_tex_gen,
 		nv10_emit_tex_gen,
 		nv10_emit_tex_gen,
+		nv20_emit_tex_mat,
+		nv20_emit_tex_mat,
+		nv20_emit_tex_mat,
+		nv20_emit_tex_mat,
 		nv20_emit_tex_obj,
 		nv20_emit_tex_obj,
 		nv20_emit_tex_obj,
diff --git a/src/mesa/drivers/dri/nouveau/nv20_driver.h b/src/mesa/drivers/dri/nouveau/nv20_driver.h
index 18574e9..05770b2 100644
--- a/src/mesa/drivers/dri/nouveau/nv20_driver.h
+++ b/src/mesa/drivers/dri/nouveau/nv20_driver.h
@@ -68,6 +68,9 @@ nv20_emit_frag(GLcontext *ctx, int emit);
 
 /* nv20_state_tex.c */
 void
+nv20_emit_tex_mat(GLcontext *ctx, int emit);
+
+void
 nv20_emit_tex_obj(GLcontext *ctx, int emit);
 
 void
diff --git a/src/mesa/drivers/dri/nouveau/nv20_state_tex.c b/src/mesa/drivers/dri/nouveau/nv20_state_tex.c
index 9287010..d7ac4c5 100644
--- a/src/mesa/drivers/dri/nouveau/nv20_state_tex.c
+++ b/src/mesa/drivers/dri/nouveau/nv20_state_tex.c
@@ -32,6 +32,30 @@
 #include "nouveau_util.h"
 #include "nv20_driver.h"
 
+#define TX_MATRIX(i) (NV20TCL_TX0_MATRIX(0) + 64 * (i))
+
+void
+nv20_emit_tex_mat(GLcontext *ctx, int emit)
+{
+	const int i = emit - NOUVEAU_STATE_TEX_MAT0;
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *kelvin = context_eng3d(ctx);
+
+	if (nctx->fallback == HWTNL &&
+	    (ctx->Texture._TexMatEnabled & 1 << i)) {
+		BEGIN_RING(chan, kelvin, NV20TCL_TX_MATRIX_ENABLE(i), 1);
+		OUT_RING(chan, 1);
+
+		BEGIN_RING(chan, kelvin, TX_MATRIX(i), 16);
+		OUT_RINGm(chan, ctx->TextureMatrixStack[i].Top->m);
+
+	} else {
+		BEGIN_RING(chan, kelvin, NV20TCL_TX_MATRIX_ENABLE(i), 1);
+		OUT_RING(chan, 0);
+	}
+}
+
 static uint32_t
 get_tex_format_pot(struct gl_texture_image *ti)
 {
-- 
2.7.4