path: root/src/gallium/drivers/nv40/nv40_state.c

#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"

#include "draw/draw_context.h"

#include "tgsi/tgsi_parse.h"

#include "nv40_context.h"
#include "nv40_state.h"

static void *
nv40_blend_state_create(struct pipe_context *pipe,
			const struct pipe_blend_state *cso)
{
	struct nv40_context *nv40 = nv40_context(pipe);
	struct nouveau_grobj *curie = nv40->screen->curie;
	struct nv40_blend_state *bso = CALLOC(1, sizeof(*bso));
	struct nouveau_stateobj *so = so_new(5, 8, 0);

	if (cso->rt[0].blend_enable) {
		so_method(so, curie, NV40TCL_BLEND_ENABLE, 3);
		so_data  (so, 1);
		so_data  (so, (nvgl_blend_func(cso->rt[0].alpha_src_factor) << 16) |
			       nvgl_blend_func(cso->rt[0].rgb_src_factor));
		so_data  (so, nvgl_blend_func(cso->rt[0].alpha_dst_factor) << 16 |
			      nvgl_blend_func(cso->rt[0].rgb_dst_factor));
		so_method(so, curie, NV40TCL_BLEND_EQUATION, 1);
		so_data  (so, nvgl_blend_eqn(cso->rt[0].alpha_func) << 16 |
			      nvgl_blend_eqn(cso->rt[0].rgb_func));
	} else {
		so_method(so, curie, NV40TCL_BLEND_ENABLE, 1);
		so_data  (so, 0);
	}

	so_method(so, curie, NV40TCL_COLOR_MASK, 1);
	so_data  (so, (((cso->rt[0].colormask & PIPE_MASK_A) ? (0x01 << 24) : 0) |
		       ((cso->rt[0].colormask & PIPE_MASK_R) ? (0x01 << 16) : 0) |
		       ((cso->rt[0].colormask & PIPE_MASK_G) ? (0x01 <<  8) : 0) |
		       ((cso->rt[0].colormask & PIPE_MASK_B) ? (0x01 <<  0) : 0)));

	if (cso->logicop_enable) {
		so_method(so, curie, NV40TCL_COLOR_LOGIC_OP_ENABLE, 2);
		so_data  (so, 1);
		so_data  (so, nvgl_logicop_func(cso->logicop_func));
	} else {
		so_method(so, curie, NV40TCL_COLOR_LOGIC_OP_ENABLE, 1);
		so_data  (so, 0);
	}

	so_method(so, curie, NV40TCL_DITHER_ENABLE, 1);
	so_data  (so, cso->dither ? 1 : 0);

	so_ref(so, &bso->so);
	so_ref(NULL, &so);
	bso->pipe = *cso;
	return (void *)bso;
}

static void
nv40_blend_state_bind(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->blend = hwcso;
	nv40->dirty |= NV40_NEW_BLEND;
}

static void
nv40_blend_state_delete(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_blend_state *bso = hwcso;

	so_ref(NULL, &bso->so);
	FREE(bso);
}


static INLINE unsigned
wrap_mode(unsigned wrap) {
	unsigned ret;

	switch (wrap) {
	case PIPE_TEX_WRAP_REPEAT:
		ret = NV40TCL_TEX_WRAP_S_REPEAT;
		break;
	case PIPE_TEX_WRAP_MIRROR_REPEAT:
		ret = NV40TCL_TEX_WRAP_S_MIRRORED_REPEAT;
		break;
	case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
		ret = NV40TCL_TEX_WRAP_S_CLAMP_TO_EDGE;
		break;
	case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
		ret = NV40TCL_TEX_WRAP_S_CLAMP_TO_BORDER;
		break;
	case PIPE_TEX_WRAP_CLAMP:
		ret = NV40TCL_TEX_WRAP_S_CLAMP;
		break;
	case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
		ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP_TO_EDGE;
		break;
	case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
		ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP_TO_BORDER;
		break;
	case PIPE_TEX_WRAP_MIRROR_CLAMP:
		ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP;
		break;
	default:
		NOUVEAU_ERR("unknown wrap mode: %d\n", wrap);
		ret = NV40TCL_TEX_WRAP_S_REPEAT;
		break;
	}

	return ret >> NV40TCL_TEX_WRAP_S_SHIFT;
}

static void *
nv40_sampler_state_create(struct pipe_context *pipe,
			  const struct pipe_sampler_state *cso)
{
	struct nv40_sampler_state *ps;
	uint32_t filter = 0;

	ps = MALLOC(sizeof(struct nv40_sampler_state));

	ps->fmt = 0;
	if (!cso->normalized_coords)
		ps->fmt |= NV40TCL_TEX_FORMAT_RECT;

	ps->wrap = ((wrap_mode(cso->wrap_s) << NV40TCL_TEX_WRAP_S_SHIFT) |
		    (wrap_mode(cso->wrap_t) << NV40TCL_TEX_WRAP_T_SHIFT) |
		    (wrap_mode(cso->wrap_r) << NV40TCL_TEX_WRAP_R_SHIFT));

	ps->en = 0;
	if (cso->max_anisotropy >= 2) {
		/* no idea, binary driver sets it, works without it.. meh.. */
		ps->wrap |= (1 << 5);

		if (cso->max_anisotropy >= 16) {
			ps->en |= NV40TCL_TEX_ENABLE_ANISO_16X;
		} else
		if (cso->max_anisotropy >= 12) {
			ps->en |= NV40TCL_TEX_ENABLE_ANISO_12X;
		} else
		if (cso->max_anisotropy >= 10) {
			ps->en |= NV40TCL_TEX_ENABLE_ANISO_10X;
		} else
		if (cso->max_anisotropy >= 8) {
			ps->en |= NV40TCL_TEX_ENABLE_ANISO_8X;
		} else
		if (cso->max_anisotropy >= 6) {
			ps->en |= NV40TCL_TEX_ENABLE_ANISO_6X;
		} else
		if (cso->max_anisotropy >= 4) {
			ps->en |= NV40TCL_TEX_ENABLE_ANISO_4X;
		} else {
			ps->en |= NV40TCL_TEX_ENABLE_ANISO_2X;
		}
	}

	switch (cso->mag_img_filter) {
	case PIPE_TEX_FILTER_LINEAR:
		filter |= NV40TCL_TEX_FILTER_MAG_LINEAR;
		break;
	case PIPE_TEX_FILTER_NEAREST:
	default:
		filter |= NV40TCL_TEX_FILTER_MAG_NEAREST;
		break;
	}

	switch (cso->min_img_filter) {
	case PIPE_TEX_FILTER_LINEAR:
		switch (cso->min_mip_filter) {
		case PIPE_TEX_MIPFILTER_NEAREST:
			filter |= NV40TCL_TEX_FILTER_MIN_LINEAR_MIPMAP_NEAREST;
			break;
		case PIPE_TEX_MIPFILTER_LINEAR:
			filter |= NV40TCL_TEX_FILTER_MIN_LINEAR_MIPMAP_LINEAR;
			break;
		case PIPE_TEX_MIPFILTER_NONE:
		default:
			filter |= NV40TCL_TEX_FILTER_MIN_LINEAR;
			break;
		}
		break;
	case PIPE_TEX_FILTER_NEAREST:
	default:
		switch (cso->min_mip_filter) {
		case PIPE_TEX_MIPFILTER_NEAREST:
			filter |= NV40TCL_TEX_FILTER_MIN_NEAREST_MIPMAP_NEAREST;
		break;
		case PIPE_TEX_MIPFILTER_LINEAR:
			filter |= NV40TCL_TEX_FILTER_MIN_NEAREST_MIPMAP_LINEAR;
			break;
		case PIPE_TEX_MIPFILTER_NONE:
		default:
			filter |= NV40TCL_TEX_FILTER_MIN_NEAREST;
			break;
		}
		break;
	}

	ps->filt = filter;

	{
		float limit;

		limit = CLAMP(cso->lod_bias, -16.0, 15.0);
		ps->filt |= (int)(cso->lod_bias * 256.0) & 0x1fff;

		limit = CLAMP(cso->max_lod, 0.0, 15.0);
		ps->en |= (int)(limit * 256.0) << 7;

		limit = CLAMP(cso->min_lod, 0.0, 15.0);
		ps->en |= (int)(limit * 256.0) << 19;
	}


	if (cso->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
		switch (cso->compare_func) {
		case PIPE_FUNC_NEVER:
			ps->wrap |= NV40TCL_TEX_WRAP_RCOMP_NEVER;
			break;
		case PIPE_FUNC_GREATER:
			ps->wrap |= NV40TCL_TEX_WRAP_RCOMP_GREATER;
			break;
		case PIPE_FUNC_EQUAL:
			ps->wrap |= NV40TCL_TEX_WRAP_RCOMP_EQUAL;
			break;
		case PIPE_FUNC_GEQUAL:
			ps->wrap |= NV40TCL_TEX_WRAP_RCOMP_GEQUAL;
			break;
		case PIPE_FUNC_LESS:
			ps->wrap |= NV40TCL_TEX_WRAP_RCOMP_LESS;
			break;
		case PIPE_FUNC_NOTEQUAL:
			ps->wrap |= NV40TCL_TEX_WRAP_RCOMP_NOTEQUAL;
			break;
		case PIPE_FUNC_LEQUAL:
			ps->wrap |= NV40TCL_TEX_WRAP_RCOMP_LEQUAL;
			break;
		case PIPE_FUNC_ALWAYS:
			ps->wrap |= NV40TCL_TEX_WRAP_RCOMP_ALWAYS;
			break;
		default:
			break;
		}
	}

	ps->bcol = ((float_to_ubyte(cso->border_color[3]) << 24) |
		    (float_to_ubyte(cso->border_color[0]) << 16) |
		    (float_to_ubyte(cso->border_color[1]) <<  8) |
		    (float_to_ubyte(cso->border_color[2]) <<  0));

	return (void *)ps;
}

static void
nv40_sampler_state_bind(struct pipe_context *pipe, unsigned nr, void **sampler)
{
	struct nv40_context *nv40 = nv40_context(pipe);
	unsigned unit;

	for (unit = 0; unit < nr; unit++) {
		nv40->tex_sampler[unit] = sampler[unit];
		nv40->dirty_samplers |= (1 << unit);
	}

	for (unit = nr; unit < nv40->nr_samplers; unit++) {
		nv40->tex_sampler[unit] = NULL;
		nv40->dirty_samplers |= (1 << unit);
	}

	nv40->nr_samplers = nr;
	nv40->dirty |= NV40_NEW_SAMPLER;
}

static void
nv40_sampler_state_delete(struct pipe_context *pipe, void *hwcso)
{
	FREE(hwcso);
}

static void
nv40_set_fragment_sampler_views(struct pipe_context *pipe,
				unsigned nr,
				struct pipe_sampler_view **views)
{
	struct nv40_context *nv40 = nv40_context(pipe);
	unsigned unit;

	for (unit = 0; unit < nr; unit++) {
		pipe_sampler_view_reference(&nv40->fragment_sampler_views[unit], views[unit]);
		pipe_texture_reference((struct pipe_texture **)
				       &nv40->tex_miptree[unit], views[unit]->texture);
		nv40->dirty_samplers |= (1 << unit);
	}

	for (unit = nr; unit < nv40->nr_textures; unit++) {
		pipe_sampler_view_reference(&nv40->fragment_sampler_views[unit], NULL);
		pipe_texture_reference((struct pipe_texture **)
				       &nv40->tex_miptree[unit], NULL);
		nv40->dirty_samplers |= (1 << unit);
	}

	nv40->nr_textures = nr;
	nv40->dirty |= NV40_NEW_SAMPLER;
}

static struct pipe_sampler_view *
nv40_create_sampler_view(struct pipe_context *pipe,
			 struct pipe_texture *texture,
			 const struct pipe_sampler_view *templ)
{
	struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);

	if (view) {
		*view = *templ;
		view->reference.count = 1;
		view->texture = NULL;
		pipe_texture_reference(&view->texture, texture);
		view->context = pipe;
	}

	return view;
}


static void
nv40_sampler_view_destroy(struct pipe_context *pipe,
			  struct pipe_sampler_view *view)
{
	pipe_texture_reference(&view->texture, NULL);
	FREE(view);
}

static void *
nv40_rasterizer_state_create(struct pipe_context *pipe,
			     const struct pipe_rasterizer_state *cso)
{
	struct nv40_context *nv40 = nv40_context(pipe);
	struct nv40_rasterizer_state *rsso = CALLOC(1, sizeof(*rsso));
	struct nouveau_stateobj *so = so_new(9, 19, 0);
	struct nouveau_grobj *curie = nv40->screen->curie;

	/*XXX: ignored:
	 * 	light_twoside
	 * 	point_smooth -nohw
	 * 	multisample
	 */

	so_method(so, curie, NV40TCL_SHADE_MODEL, 1);
	so_data  (so, cso->flatshade ? NV40TCL_SHADE_MODEL_FLAT :
				       NV40TCL_SHADE_MODEL_SMOOTH);

	so_method(so, curie, NV40TCL_LINE_WIDTH, 2);
	so_data  (so, (unsigned char)(cso->line_width * 8.0) & 0xff);
	so_data  (so, cso->line_smooth ? 1 : 0);
	so_method(so, curie, NV40TCL_LINE_STIPPLE_ENABLE, 2);
	so_data  (so, cso->line_stipple_enable ? 1 : 0);
	so_data  (so, (cso->line_stipple_pattern << 16) |
		       cso->line_stipple_factor);

	so_method(so, curie, NV40TCL_POINT_SIZE, 1);
	so_data  (so, fui(cso->point_size));

	so_method(so, curie, NV40TCL_POLYGON_MODE_FRONT, 6);
	if (cso->front_winding == PIPE_WINDING_CCW) {
		so_data(so, nvgl_polygon_mode(cso->fill_ccw));
		so_data(so, nvgl_polygon_mode(cso->fill_cw));
		switch (cso->cull_mode) {
		case PIPE_WINDING_CCW:
			so_data(so, NV40TCL_CULL_FACE_FRONT);
			break;
		case PIPE_WINDING_CW:
			so_data(so, NV40TCL_CULL_FACE_BACK);
			break;
		case PIPE_WINDING_BOTH:
			so_data(so, NV40TCL_CULL_FACE_FRONT_AND_BACK);
			break;
		default:
			so_data(so, NV40TCL_CULL_FACE_BACK);
			break;
		}
		so_data(so, NV40TCL_FRONT_FACE_CCW);
	} else {
		so_data(so, nvgl_polygon_mode(cso->fill_cw));
		so_data(so, nvgl_polygon_mode(cso->fill_ccw));
		switch (cso->cull_mode) {
		case PIPE_WINDING_CCW:
			so_data(so, NV40TCL_CULL_FACE_BACK);
			break;
		case PIPE_WINDING_CW:
			so_data(so, NV40TCL_CULL_FACE_FRONT);
			break;
		case PIPE_WINDING_BOTH:
			so_data(so, NV40TCL_CULL_FACE_FRONT_AND_BACK);
			break;
		default:
			so_data(so, NV40TCL_CULL_FACE_BACK);
			break;
		}
		so_data(so, NV40TCL_FRONT_FACE_CW);
	}
	so_data(so, cso->poly_smooth ? 1 : 0);
	so_data(so, (cso->cull_mode != PIPE_WINDING_NONE) ? 1 : 0);

	so_method(so, curie, NV40TCL_POLYGON_STIPPLE_ENABLE, 1);
	so_data  (so, cso->poly_stipple_enable ? 1 : 0);

	so_method(so, curie, NV40TCL_POLYGON_OFFSET_POINT_ENABLE, 3);
	if ((cso->offset_cw && cso->fill_cw == PIPE_POLYGON_MODE_POINT) ||
	    (cso->offset_ccw && cso->fill_ccw == PIPE_POLYGON_MODE_POINT))
		so_data(so, 1);
	else
		so_data(so, 0);
	if ((cso->offset_cw && cso->fill_cw == PIPE_POLYGON_MODE_LINE) ||
	    (cso->offset_ccw && cso->fill_ccw == PIPE_POLYGON_MODE_LINE))
		so_data(so, 1);
	else
		so_data(so, 0);
	if ((cso->offset_cw && cso->fill_cw == PIPE_POLYGON_MODE_FILL) ||
	    (cso->offset_ccw && cso->fill_ccw == PIPE_POLYGON_MODE_FILL))
		so_data(so, 1);
	else
		so_data(so, 0);
	if (cso->offset_cw || cso->offset_ccw) {
		so_method(so, curie, NV40TCL_POLYGON_OFFSET_FACTOR, 2);
		so_data  (so, fui(cso->offset_scale));
		so_data  (so, fui(cso->offset_units * 2));
	}

	so_method(so, curie, NV40TCL_POINT_SPRITE, 1);
	if (cso->point_quad_rasterization) {
		unsigned psctl = (1 << 0), i;

		for (i = 0; i < 8; i++) {
			if ((cso->sprite_coord_enable >> i) & 1)
				psctl |= (1 << (8 + i));
		}

		so_data(so, psctl);
	} else {
		so_data(so, 0);
	}

	so_ref(so, &rsso->so);
	so_ref(NULL, &so);
	rsso->pipe = *cso;
	return (void *)rsso;
}

static void
nv40_rasterizer_state_bind(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->rasterizer = hwcso;
	nv40->dirty |= NV40_NEW_RAST;
	nv40->draw_dirty |= NV40_NEW_RAST;
}

static void
nv40_rasterizer_state_delete(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_rasterizer_state *rsso = hwcso;

	so_ref(NULL, &rsso->so);
	FREE(rsso);
}

static void *
nv40_depth_stencil_alpha_state_create(struct pipe_context *pipe,
			const struct pipe_depth_stencil_alpha_state *cso)
{
	struct nv40_context *nv40 = nv40_context(pipe);
	struct nv40_zsa_state *zsaso = CALLOC(1, sizeof(*zsaso));
	struct nouveau_stateobj *so = so_new(6, 20, 0);
	struct nouveau_grobj *curie = nv40->screen->curie;

	so_method(so, curie, NV40TCL_DEPTH_FUNC, 3);
	so_data  (so, nvgl_comparison_op(cso->depth.func));
	so_data  (so, cso->depth.writemask ? 1 : 0);
	so_data  (so, cso->depth.enabled ? 1 : 0);

	so_method(so, curie, NV40TCL_ALPHA_TEST_ENABLE, 3);
	so_data  (so, cso->alpha.enabled ? 1 : 0);
	so_data  (so, nvgl_comparison_op(cso->alpha.func));
	so_data  (so, float_to_ubyte(cso->alpha.ref_value));

	if (cso->stencil[0].enabled) {
		so_method(so, curie, NV40TCL_STENCIL_FRONT_ENABLE, 3);
		so_data  (so, cso->stencil[0].enabled ? 1 : 0);
		so_data  (so, cso->stencil[0].writemask);
		so_data  (so, nvgl_comparison_op(cso->stencil[0].func));
		so_method(so, curie, NV40TCL_STENCIL_FRONT_FUNC_MASK, 4);
		so_data  (so, cso->stencil[0].valuemask);
		so_data  (so, nvgl_stencil_op(cso->stencil[0].fail_op));
		so_data  (so, nvgl_stencil_op(cso->stencil[0].zfail_op));
		so_data  (so, nvgl_stencil_op(cso->stencil[0].zpass_op));
	} else {
		so_method(so, curie, NV40TCL_STENCIL_FRONT_ENABLE, 1);
		so_data  (so, 0);
	}

	if (cso->stencil[1].enabled) {
		so_method(so, curie, NV40TCL_STENCIL_BACK_ENABLE, 3);
		so_data  (so, cso->stencil[1].enabled ? 1 : 0);
		so_data  (so, cso->stencil[1].writemask);
		so_data  (so, nvgl_comparison_op(cso->stencil[1].func));
		so_method(so, curie, NV40TCL_STENCIL_BACK_FUNC_MASK, 4);
		so_data  (so, cso->stencil[1].valuemask);
		so_data  (so, nvgl_stencil_op(cso->stencil[1].fail_op));
		so_data  (so, nvgl_stencil_op(cso->stencil[1].zfail_op));
		so_data  (so, nvgl_stencil_op(cso->stencil[1].zpass_op));
	} else {
		so_method(so, curie, NV40TCL_STENCIL_BACK_ENABLE, 1);
		so_data  (so, 0);
	}

	so_ref(so, &zsaso->so);
	so_ref(NULL, &so);
	zsaso->pipe = *cso;
	return (void *)zsaso;
}

static void
nv40_depth_stencil_alpha_state_bind(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->zsa = hwcso;
	nv40->dirty |= NV40_NEW_ZSA;
}

static void
nv40_depth_stencil_alpha_state_delete(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_zsa_state *zsaso = hwcso;

	so_ref(NULL, &zsaso->so);
	FREE(zsaso);
}

static void *
nv40_vp_state_create(struct pipe_context *pipe,
		     const struct pipe_shader_state *cso)
{
	struct nv40_context *nv40 = nv40_context(pipe);
	struct nv40_vertex_program *vp;

	vp = CALLOC(1, sizeof(struct nv40_vertex_program));
	vp->pipe.tokens = tgsi_dup_tokens(cso->tokens);
	vp->draw = draw_create_vertex_shader(nv40->draw, &vp->pipe);

	return (void *)vp;
}

static void
nv40_vp_state_bind(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->vertprog = hwcso;
	nv40->dirty |= NV40_NEW_VERTPROG;
	nv40->draw_dirty |= NV40_NEW_VERTPROG;
}

static void
nv40_vp_state_delete(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_context *nv40 = nv40_context(pipe);
	struct nv40_vertex_program *vp = hwcso;

	draw_delete_vertex_shader(nv40->draw, vp->draw);
	nv40_vertprog_destroy(nv40, vp);
	FREE((void*)vp->pipe.tokens);
	FREE(vp);
}

static void *
nv40_fp_state_create(struct pipe_context *pipe,
		     const struct pipe_shader_state *cso)
{
	struct nv40_fragment_program *fp;

	fp = CALLOC(1, sizeof(struct nv40_fragment_program));
	fp->pipe.tokens = tgsi_dup_tokens(cso->tokens);

	tgsi_scan_shader(fp->pipe.tokens, &fp->info);

	return (void *)fp;
}

static void
nv40_fp_state_bind(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->fragprog = hwcso;
	nv40->dirty |= NV40_NEW_FRAGPROG;
}

static void
nv40_fp_state_delete(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_context *nv40 = nv40_context(pipe);
	struct nv40_fragment_program *fp = hwcso;

	nv40_fragprog_destroy(nv40, fp);
	FREE((void*)fp->pipe.tokens);
	FREE(fp);
}

static void
nv40_set_blend_color(struct pipe_context *pipe,
		     const struct pipe_blend_color *bcol)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->blend_colour = *bcol;
	nv40->dirty |= NV40_NEW_BCOL;
}

 static void
nv40_set_stencil_ref(struct pipe_context *pipe,
		     const struct pipe_stencil_ref *sr)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->stencil_ref = *sr;
	nv40->dirty |= NV40_NEW_SR;
}

static void
nv40_set_clip_state(struct pipe_context *pipe,
		    const struct pipe_clip_state *clip)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->clip = *clip;
	nv40->dirty |= NV40_NEW_UCP;
	nv40->draw_dirty |= NV40_NEW_UCP;
}

static void
nv40_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
			 struct pipe_buffer *buf )
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->constbuf[shader] = buf;
	nv40->constbuf_nr[shader] = buf->size / (4 * sizeof(float));

	if (shader == PIPE_SHADER_VERTEX) {
		nv40->dirty |= NV40_NEW_VERTPROG;
	} else
	if (shader == PIPE_SHADER_FRAGMENT) {
		nv40->dirty |= NV40_NEW_FRAGPROG;
	}
}

static void
nv40_set_framebuffer_state(struct pipe_context *pipe,
			   const struct pipe_framebuffer_state *fb)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->framebuffer = *fb;
	nv40->dirty |= NV40_NEW_FB;
}

static void
nv40_set_polygon_stipple(struct pipe_context *pipe,
			 const struct pipe_poly_stipple *stipple)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	memcpy(nv40->stipple, stipple->stipple, 4 * 32);
	nv40->dirty |= NV40_NEW_STIPPLE;
}

static void
nv40_set_scissor_state(struct pipe_context *pipe,
		       const struct pipe_scissor_state *s)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->scissor = *s;
	nv40->dirty |= NV40_NEW_SCISSOR;
}

static void
nv40_set_viewport_state(struct pipe_context *pipe,
			const struct pipe_viewport_state *vpt)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->viewport = *vpt;
	nv40->dirty |= NV40_NEW_VIEWPORT;
	nv40->draw_dirty |= NV40_NEW_VIEWPORT;
}

static void
nv40_set_vertex_buffers(struct pipe_context *pipe, unsigned count,
			const struct pipe_vertex_buffer *vb)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	memcpy(nv40->vtxbuf, vb, sizeof(*vb) * count);
	nv40->vtxbuf_nr = count;

	nv40->dirty |= NV40_NEW_ARRAYS;
	nv40->draw_dirty |= NV40_NEW_ARRAYS;
}

static void *
nv40_vtxelts_state_create(struct pipe_context *pipe,
			  unsigned num_elements,
			  const struct pipe_vertex_element *elements)
{
	struct nv40_vtxelt_state *cso = CALLOC_STRUCT(nv40_vtxelt_state);

	assert(num_elements < 16); /* not doing fallbacks yet */
	cso->num_elements = num_elements;
	memcpy(cso->pipe, elements, num_elements * sizeof(*elements));

/*	nv40_vtxelt_construct(cso);*/

	return (void *)cso;
}

static void
nv40_vtxelts_state_delete(struct pipe_context *pipe, void *hwcso)
{
	FREE(hwcso);
}

static void
nv40_vtxelts_state_bind(struct pipe_context *pipe, void *hwcso)
{
	struct nv40_context *nv40 = nv40_context(pipe);

	nv40->vtxelt = hwcso;
	nv40->dirty |= NV40_NEW_ARRAYS;
	nv40->draw_dirty |= NV40_NEW_ARRAYS;
}

void
nv40_init_state_functions(struct nv40_context *nv40)
{
	nv40->pipe.create_blend_state = nv40_blend_state_create;
	nv40->pipe.bind_blend_state = nv40_blend_state_bind;
	nv40->pipe.delete_blend_state = nv40_blend_state_delete;

	nv40->pipe.create_sampler_state = nv40_sampler_state_create;
	nv40->pipe.bind_fragment_sampler_states = nv40_sampler_state_bind;
	nv40->pipe.delete_sampler_state = nv40_sampler_state_delete;
	nv40->pipe.set_fragment_sampler_views = nv40_set_fragment_sampler_views;
	nv40->pipe.create_sampler_view = nv40_create_sampler_view;
	nv40->pipe.sampler_view_destroy = nv40_sampler_view_destroy;

	nv40->pipe.create_rasterizer_state = nv40_rasterizer_state_create;
	nv40->pipe.bind_rasterizer_state = nv40_rasterizer_state_bind;
	nv40->pipe.delete_rasterizer_state = nv40_rasterizer_state_delete;

	nv40->pipe.create_depth_stencil_alpha_state =
		nv40_depth_stencil_alpha_state_create;
	nv40->pipe.bind_depth_stencil_alpha_state =
		nv40_depth_stencil_alpha_state_bind;
	nv40->pipe.delete_depth_stencil_alpha_state =
		nv40_depth_stencil_alpha_state_delete;

	nv40->pipe.create_vs_state = nv40_vp_state_create;
	nv40->pipe.bind_vs_state = nv40_vp_state_bind;
	nv40->pipe.delete_vs_state = nv40_vp_state_delete;

	nv40->pipe.create_fs_state = nv40_fp_state_create;
	nv40->pipe.bind_fs_state = nv40_fp_state_bind;
	nv40->pipe.delete_fs_state = nv40_fp_state_delete;

	nv40->pipe.set_blend_color = nv40_set_blend_color;
        nv40->pipe.set_stencil_ref = nv40_set_stencil_ref;
	nv40->pipe.set_clip_state = nv40_set_clip_state;
	nv40->pipe.set_constant_buffer = nv40_set_constant_buffer;
	nv40->pipe.set_framebuffer_state = nv40_set_framebuffer_state;
	nv40->pipe.set_polygon_stipple = nv40_set_polygon_stipple;
	nv40->pipe.set_scissor_state = nv40_set_scissor_state;
	nv40->pipe.set_viewport_state = nv40_set_viewport_state;

	nv40->pipe.create_vertex_elements_state = nv40_vtxelts_state_create;
	nv40->pipe.delete_vertex_elements_state = nv40_vtxelts_state_delete;
	nv40->pipe.bind_vertex_elements_state = nv40_vtxelts_state_bind;

	nv40->pipe.set_vertex_buffers = nv40_set_vertex_buffers;
}