Import a classic DRI driver for nv0x-nv2x.

1 files changed, 514 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nv10_state_tnl.c b/src/mesa/drivers/dri/nouveau/nv10_state_tnl.c
new file mode 100644
index 0000000000..6db14d83b8
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nv10_state_tnl.c
@@ -0,0 +1,514 @@
+/*
+ * Copyright (C) 2009-2010 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_util.h"
+#include "nouveau_class.h"
+#include "nv10_driver.h"
+
+void
+nv10_emit_clip_plane(GLcontext *ctx, int emit)
+{
+}
+
+static inline unsigned
+get_material_bitmask(unsigned m)
+{
+	unsigned ret = 0;
+
+	if (m & MAT_BIT_FRONT_EMISSION)
+		ret |= NV10TCL_COLOR_MATERIAL_EMISSION;
+	if (m & MAT_BIT_FRONT_AMBIENT)
+		ret |= NV10TCL_COLOR_MATERIAL_AMBIENT;
+	if (m & MAT_BIT_FRONT_DIFFUSE)
+		ret |= NV10TCL_COLOR_MATERIAL_DIFFUSE;
+	if (m & MAT_BIT_FRONT_SPECULAR)
+		ret |= NV10TCL_COLOR_MATERIAL_SPECULAR;
+
+	return ret;
+}
+
+void
+nv10_emit_color_material(GLcontext *ctx, int emit)
+{
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	unsigned mask = get_material_bitmask(ctx->Light.ColorMaterialBitmask);
+
+	BEGIN_RING(chan, celsius, NV10TCL_COLOR_MATERIAL, 1);
+	OUT_RING(chan, ctx->Light.ColorMaterialEnabled ? mask : 0);
+}
+
+static unsigned
+get_fog_mode(unsigned mode)
+{
+	switch (mode) {
+	case GL_LINEAR:
+		return NV10TCL_FOG_MODE_LINEAR;
+	case GL_EXP:
+		return NV10TCL_FOG_MODE_EXP;
+	case GL_EXP2:
+		return NV10TCL_FOG_MODE_EXP2;
+	default:
+		assert(0);
+	}
+}
+
+static unsigned
+get_fog_source(unsigned source)
+{
+	switch (source) {
+	case GL_FOG_COORDINATE_EXT:
+		return NV10TCL_FOG_COORD_FOG;
+	case GL_FRAGMENT_DEPTH_EXT:
+		return NV10TCL_FOG_COORD_DIST_ORTHOGONAL_ABS;
+	default:
+		assert(0);
+	}
+}
+
+void
+nv10_get_fog_coeff(GLcontext *ctx, float k[3])
+{
+	struct gl_fog_attrib *f = &ctx->Fog;
+
+	switch (f->Mode) {
+	case GL_LINEAR:
+		k[0] = 2 + f->Start / (f->End - f->Start);
+		k[1] = -1 / (f->End - f->Start);
+		break;
+
+	case GL_EXP:
+		k[0] = 1.5;
+		k[1] = -0.09 * f->Density;
+		break;
+
+	case GL_EXP2:
+		k[0] = 1.5;
+		k[1] = -0.21 * f->Density;
+		break;
+
+	default:
+		assert(0);
+	}
+
+	k[2] = 0;
+}
+
+void
+nv10_emit_fog(GLcontext *ctx, int emit)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	struct gl_fog_attrib *f = &ctx->Fog;
+	unsigned source = nctx->fallback == HWTNL ?
+		f->FogCoordinateSource : GL_FOG_COORDINATE_EXT;
+	float k[3];
+
+	nv10_get_fog_coeff(ctx, k);
+
+	BEGIN_RING(chan, celsius, NV10TCL_FOG_MODE, 4);
+	OUT_RING(chan, get_fog_mode(f->Mode));
+	OUT_RING(chan, get_fog_source(source));
+	OUT_RING(chan, f->Enabled ? 1 : 0);
+	OUT_RING(chan, pack_rgba_f(MESA_FORMAT_RGBA8888_REV, f->Color));
+
+	BEGIN_RING(chan, celsius, NV10TCL_FOG_EQUATION_CONSTANT, 3);
+	OUT_RINGf(chan, k[0]);
+	OUT_RINGf(chan, k[1]);
+	OUT_RINGf(chan, k[2]);
+
+	context_dirty(ctx, FRAG);
+}
+
+static inline unsigned
+get_light_mode(struct gl_light *l)
+{
+	if (l->Enabled) {
+		if (l->_Flags & LIGHT_SPOT)
+			return NV10TCL_ENABLED_LIGHTS_0_DIRECTIONAL;
+		else if (l->_Flags & LIGHT_POSITIONAL)
+			return NV10TCL_ENABLED_LIGHTS_0_POSITIONAL;
+		else
+			return NV10TCL_ENABLED_LIGHTS_0_NONPOSITIONAL;
+	} else {
+		return NV10TCL_ENABLED_LIGHTS_0_DISABLED;
+	}
+}
+
+void
+nv10_emit_light_enable(GLcontext *ctx, int emit)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	uint32_t en_lights = 0;
+	int i;
+
+	if (nctx->fallback != HWTNL) {
+		BEGIN_RING(chan, celsius, NV10TCL_LIGHTING_ENABLE, 1);
+		OUT_RING(chan, 0);
+		return;
+	}
+
+	for (i = 0; i < MAX_LIGHTS; i++)
+		en_lights |= get_light_mode(&ctx->Light.Light[i]) << 2 * i;
+
+	BEGIN_RING(chan, celsius, NV10TCL_ENABLED_LIGHTS, 1);
+	OUT_RING(chan, en_lights);
+	BEGIN_RING(chan, celsius, NV10TCL_LIGHTING_ENABLE, 1);
+	OUT_RING(chan, ctx->Light.Enabled ? 1 : 0);
+	BEGIN_RING(chan, celsius, NV10TCL_NORMALIZE_ENABLE, 1);
+	OUT_RING(chan, ctx->Transform.Normalize ? 1 : 0);
+}
+
+void
+nv10_emit_light_model(GLcontext *ctx, int emit)
+{
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	struct gl_lightmodel *m = &ctx->Light.Model;
+
+	BEGIN_RING(chan, celsius, NV10TCL_SEPARATE_SPECULAR_ENABLE, 1);
+	OUT_RING(chan, m->ColorControl == GL_SEPARATE_SPECULAR_COLOR ? 1 : 0);
+
+	BEGIN_RING(chan, celsius, NV10TCL_LIGHT_MODEL, 1);
+	OUT_RING(chan, ((m->LocalViewer ?
+			 NV10TCL_LIGHT_MODEL_LOCAL_VIEWER : 0) |
+			(m->ColorControl == GL_SEPARATE_SPECULAR_COLOR ?
+			 NV10TCL_LIGHT_MODEL_SEPARATE_SPECULAR : 0)));
+}
+
+static float
+get_shine(const float p[], float x)
+{
+	const int n = 15;
+	const float *y = &p[1];
+	float f = (n - 1) * (1 - 1 / (1 + p[0] * x))
+		/ (1 - 1 / (1 + p[0] * 1024));
+	int i = f;
+
+	/* Linear interpolation in f-space (Faster and somewhat more
+	 * accurate than x-space). */
+	if (x == 0)
+		return y[0];
+	else if (i > n - 2)
+		return y[n - 1];
+	else
+		return y[i] + (y[i + 1] - y[i]) * (f - i);
+}
+
+static const float nv10_spot_params[2][16] = {
+	{ 0.02, -3.80e-05, -1.77, -2.41, -2.71, -2.88, -2.98, -3.06,
+	  -3.11, -3.17, -3.23, -3.28, -3.37, -3.47, -3.83, -5.11 },
+	{ 0.02, -0.01, 1.77, 2.39, 2.70, 2.87, 2.98, 3.06,
+	  3.10, 3.16, 3.23, 3.27, 3.37, 3.47, 3.83, 5.11 },
+};
+
+void
+nv10_get_spot_coeff(struct gl_light *l, float k[7])
+{
+	float e = l->SpotExponent;
+	float a0, b0, a1, a2, b2, a3;
+
+	if (e > 0)
+		a0 = -1 - 5.36e-3 / sqrt(e);
+	else
+		a0 = -1;
+	b0 = 1 / (1 + 0.273 * e);
+
+	a1 = get_shine(nv10_spot_params[0], e);
+
+	a2 = get_shine(nv10_spot_params[1], e);
+	b2 = 1 / (1 + 0.273 * e);
+
+	a3 = 0.9 + 0.278 * e;
+
+	if (l->SpotCutoff > 0) {
+		float cutoff = MAX2(a3, 1 / (1 - l->_CosCutoff));
+
+		k[0] = MAX2(0, a0 + b0 * cutoff);
+		k[1] = a1;
+		k[2] = a2 + b2 * cutoff;
+		k[3] = - cutoff * l->_NormSpotDirection[0];
+		k[4] = - cutoff * l->_NormSpotDirection[1];
+		k[5] = - cutoff * l->_NormSpotDirection[2];
+		k[6] = 1 - cutoff;
+
+	} else {
+		k[0] = b0;
+		k[1] = a1;
+		k[2] = a2 + b2;
+		k[3] = - l->_NormSpotDirection[0];
+		k[4] = - l->_NormSpotDirection[1];
+		k[5] = - l->_NormSpotDirection[2];
+		k[6] = -1;
+	}
+}
+
+void
+nv10_emit_light_source(GLcontext *ctx, int emit)
+{
+	const int i = emit - NOUVEAU_STATE_LIGHT_SOURCE0;
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	struct gl_light *l = &ctx->Light.Light[i];
+
+	if (l->_Flags & LIGHT_POSITIONAL) {
+		BEGIN_RING(chan, celsius, NV10TCL_LIGHT_POSITION_X(i), 3);
+		OUT_RINGf(chan, l->_Position[0]);
+		OUT_RINGf(chan, l->_Position[1]);
+		OUT_RINGf(chan, l->_Position[2]);
+
+		BEGIN_RING(chan, celsius,
+			   NV10TCL_LIGHT_ATTENUATION_CONSTANT(i), 3);
+		OUT_RINGf(chan, l->ConstantAttenuation);
+		OUT_RINGf(chan, l->LinearAttenuation);
+		OUT_RINGf(chan, l->QuadraticAttenuation);
+
+	} else {
+		BEGIN_RING(chan, celsius, NV10TCL_LIGHT_DIRECTION_X(i), 3);
+		OUT_RINGf(chan, l->_VP_inf_norm[0]);
+		OUT_RINGf(chan, l->_VP_inf_norm[1]);
+		OUT_RINGf(chan, l->_VP_inf_norm[2]);
+
+		BEGIN_RING(chan, celsius, NV10TCL_LIGHT_HALF_VECTOR_X(i), 3);
+		OUT_RINGf(chan, l->_h_inf_norm[0]);
+		OUT_RINGf(chan, l->_h_inf_norm[1]);
+		OUT_RINGf(chan, l->_h_inf_norm[2]);
+	}
+
+	if (l->_Flags & LIGHT_SPOT) {
+		float k[7];
+
+		nv10_get_spot_coeff(l, k);
+
+		BEGIN_RING(chan, celsius, NV10TCL_LIGHT_SPOT_CUTOFF_A(i), 7);
+		OUT_RINGf(chan, k[0]);
+		OUT_RINGf(chan, k[1]);
+		OUT_RINGf(chan, k[2]);
+		OUT_RINGf(chan, k[3]);
+		OUT_RINGf(chan, k[4]);
+		OUT_RINGf(chan, k[5]);
+		OUT_RINGf(chan, k[6]);
+	}
+}
+
+#define USE_COLOR_MATERIAL(attr)					\
+	(ctx->Light.ColorMaterialEnabled &&				\
+	 ctx->Light.ColorMaterialBitmask & (1 << MAT_ATTRIB_FRONT_##attr))
+
+void
+nv10_emit_material_ambient(GLcontext *ctx, int emit)
+{
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	float (*mat)[4] = ctx->Light.Material.Attrib;
+	float c_scene[3], c_factor[3];
+	struct gl_light *l;
+
+	if (USE_COLOR_MATERIAL(AMBIENT)) {
+		COPY_3V(c_scene, ctx->Light.Model.Ambient);
+		COPY_3V(c_factor, mat[MAT_ATTRIB_FRONT_EMISSION]);
+
+	} else if (USE_COLOR_MATERIAL(EMISSION)) {
+		SCALE_3V(c_scene, mat[MAT_ATTRIB_FRONT_AMBIENT],
+			 ctx->Light.Model.Ambient);
+		ZERO_3V(c_factor);
+
+	} else {
+		COPY_3V(c_scene, ctx->Light._BaseColor[0]);
+		ZERO_3V(c_factor);
+	}
+
+	BEGIN_RING(chan, celsius, NV10TCL_LIGHT_MODEL_AMBIENT_R, 3);
+	OUT_RINGf(chan, c_scene[0]);
+	OUT_RINGf(chan, c_scene[1]);
+	OUT_RINGf(chan, c_scene[2]);
+
+	if (ctx->Light.ColorMaterialEnabled) {
+		BEGIN_RING(chan, celsius, NV10TCL_MATERIAL_FACTOR_R, 3);
+		OUT_RINGf(chan, c_factor[0]);
+		OUT_RINGf(chan, c_factor[1]);
+		OUT_RINGf(chan, c_factor[2]);
+	}
+
+	foreach(l, &ctx->Light.EnabledList) {
+		const int i = l - ctx->Light.Light;
+		float *c_light = (USE_COLOR_MATERIAL(AMBIENT) ?
+				  l->Ambient :
+				  l->_MatAmbient[0]);
+
+		BEGIN_RING(chan, celsius, NV10TCL_LIGHT_AMBIENT_R(i), 3);
+		OUT_RINGf(chan, c_light[0]);
+		OUT_RINGf(chan, c_light[1]);
+		OUT_RINGf(chan, c_light[2]);
+	}
+}
+
+void
+nv10_emit_material_diffuse(GLcontext *ctx, int emit)
+{
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	GLfloat (*mat)[4] = ctx->Light.Material.Attrib;
+	struct gl_light *l;
+
+	BEGIN_RING(chan, celsius, NV10TCL_MATERIAL_FACTOR_A, 1);
+	OUT_RINGf(chan, mat[MAT_ATTRIB_FRONT_DIFFUSE][3]);
+
+	foreach(l, &ctx->Light.EnabledList) {
+		const int i = l - ctx->Light.Light;
+		float *c_light = (USE_COLOR_MATERIAL(DIFFUSE) ?
+				  l->Diffuse :
+				  l->_MatDiffuse[0]);
+
+		BEGIN_RING(chan, celsius, NV10TCL_LIGHT_DIFFUSE_R(i), 3);
+		OUT_RINGf(chan, c_light[0]);
+		OUT_RINGf(chan, c_light[1]);
+		OUT_RINGf(chan, c_light[2]);
+	}
+}
+
+void
+nv10_emit_material_specular(GLcontext *ctx, int emit)
+{
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	struct gl_light *l;
+
+	foreach(l, &ctx->Light.EnabledList) {
+		const int i = l - ctx->Light.Light;
+		float *c_light = (USE_COLOR_MATERIAL(SPECULAR) ?
+				  l->Specular :
+				  l->_MatSpecular[0]);
+
+		BEGIN_RING(chan, celsius, NV10TCL_LIGHT_SPECULAR_R(i), 3);
+		OUT_RINGf(chan, c_light[0]);
+		OUT_RINGf(chan, c_light[1]);
+		OUT_RINGf(chan, c_light[2]);
+	}
+}
+
+static const float nv10_shininess_param[6][16] = {
+	{ 0.70, 0.00, 0.06, 0.06, 0.05, 0.04, 0.02, 0.00,
+	  -0.06, -0.13, -0.24, -0.36, -0.51, -0.66, -0.82, -1.00 },
+	{ 0.01, 1.00, -2.29, -2.77, -2.96, -3.06, -3.12, -3.18,
+	  -3.24, -3.29, -3.36, -3.43, -3.51, -3.75, -4.33, -5.11 },
+	{ 0.02, 0.00, 2.28, 2.75, 2.94, 3.04, 3.1, 3.15,
+	  3.18, 3.22, 3.27, 3.32, 3.39, 3.48, 3.84, 5.11 },
+	{ 0.70, 0.00, 0.05, 0.06, 0.06, 0.06, 0.05, 0.04,
+	  0.02, 0.01, -0.03, -0.12, -0.25, -0.43, -0.68, -0.99 },
+	{ 0.01, 1.00, -1.61, -2.35, -2.67, -2.84, -2.96, -3.05,
+	  -3.08, -3.14, -3.2, -3.26, -3.32, -3.42, -3.54, -4.21 },
+	{ 0.01, 0.00, 2.25, 2.73, 2.92, 3.03, 3.09, 3.15,
+	  3.16, 3.21, 3.25, 3.29, 3.35, 3.43, 3.56, 4.22 },
+};
+
+void
+nv10_get_shininess_coeff(float s, float k[6])
+{
+	int i;
+
+	for (i = 0; i < 6; i++)
+		k[i] = get_shine(nv10_shininess_param[i], s);
+}
+
+void
+nv10_emit_material_shininess(GLcontext *ctx, int emit)
+{
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	float (*mat)[4] = ctx->Light.Material.Attrib;
+	float k[6];
+
+	nv10_get_shininess_coeff(
+		CLAMP(mat[MAT_ATTRIB_FRONT_SHININESS][0], 0, 1024),
+		k);
+
+	BEGIN_RING(chan, celsius, NV10TCL_MATERIAL_SHININESS(0), 6);
+	OUT_RINGf(chan, k[0]);
+	OUT_RINGf(chan, k[1]);
+	OUT_RINGf(chan, k[2]);
+	OUT_RINGf(chan, k[3]);
+	OUT_RINGf(chan, k[4]);
+	OUT_RINGf(chan, k[5]);
+}
+
+void
+nv10_emit_modelview(GLcontext *ctx, int emit)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	GLmatrix *m = ctx->ModelviewMatrixStack.Top;
+
+	if (nctx->fallback != HWTNL)
+		return;
+
+	if (ctx->Light._NeedEyeCoords || ctx->Fog.Enabled) {
+		BEGIN_RING(chan, celsius, NV10TCL_MODELVIEW0_MATRIX(0), 16);
+		OUT_RINGm(chan, m->m);
+	}
+
+	if (ctx->Light.Enabled) {
+		int i, j;
+
+		BEGIN_RING(chan, celsius,
+			   NV10TCL_INVERSE_MODELVIEW0_MATRIX(0), 12);
+		for (i = 0; i < 3; i++)
+			for (j = 0; j < 4; j++)
+				OUT_RINGf(chan, m->inv[4*i + j]);
+	}
+}
+
+void
+nv10_emit_point_parameter(GLcontext *ctx, int emit)
+{
+}
+
+void
+nv10_emit_projection(GLcontext *ctx, int emit)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+	struct nouveau_channel *chan = context_chan(ctx);
+	struct nouveau_grobj *celsius = context_eng3d(ctx);
+	GLmatrix m;
+
+	_math_matrix_ctr(&m);
+	get_viewport_scale(ctx, m.m);
+
+	if (nctx->fallback == HWTNL)
+		_math_matrix_mul_matrix(&m, &m, &ctx->_ModelProjectMatrix);
+
+	BEGIN_RING(chan, celsius, NV10TCL_PROJECTION_MATRIX(0), 16);
+	OUT_RINGm(chan, m.m);
+
+	_math_matrix_dtr(&m);
+}