1/*
2 * Copyright (C) 2009 Francisco Jerez.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27#include "nouveau_driver.h"
28#include "nouveau_context.h"
29#include "nouveau_util.h"
30#include "nv04_3d.xml.h"
31#include "nv04_driver.h"
32
33#include "tnl/tnl.h"
34#include "tnl/t_pipeline.h"
35#include "tnl/t_vertex.h"
36
37#define NUM_VERTEX_ATTRS 6
38
39static void
40swtnl_update_viewport(struct gl_context *ctx)
41{
42	float *viewport = to_nv04_context(ctx)->viewport;
43	struct gl_framebuffer *fb = ctx->DrawBuffer;
44
45	get_viewport_scale(ctx, viewport);
46	get_viewport_translate(ctx, &viewport[MAT_TX]);
47
48	/* It wants normalized Z coordinates. */
49	viewport[MAT_SZ] /= fb->_DepthMaxF;
50	viewport[MAT_TZ] /= fb->_DepthMaxF;
51}
52
53static void
54swtnl_emit_attr(struct gl_context *ctx, struct tnl_attr_map *m, int attr, int emit)
55{
56	TNLcontext *tnl = TNL_CONTEXT(ctx);
57
58	if (tnl->render_inputs_bitset & BITFIELD64_BIT(attr))
59		*m = (struct tnl_attr_map) {
60			.attrib = attr,
61			.format = emit,
62		};
63	else
64		*m = (struct tnl_attr_map) {
65			.format = EMIT_PAD,
66			.offset = _tnl_format_info[emit].attrsize,
67		};
68}
69
70static void
71swtnl_choose_attrs(struct gl_context *ctx)
72{
73	TNLcontext *tnl = TNL_CONTEXT(ctx);
74	struct nouveau_object *fahrenheit = nv04_context_engine(ctx);
75	struct nv04_context *nctx = to_nv04_context(ctx);
76	static struct tnl_attr_map map[NUM_VERTEX_ATTRS];
77	int n = 0;
78
79	tnl->vb.AttribPtr[VERT_ATTRIB_POS] = tnl->vb.NdcPtr;
80
81	swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT);
82	swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA);
83	swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR);
84	swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_FOG, EMIT_1UB_1F);
85	swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_TEX0, EMIT_2F);
86	if (nv04_mtex_engine(fahrenheit))
87		swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_TEX1, EMIT_2F);
88
89	swtnl_update_viewport(ctx);
90
91	_tnl_install_attrs(ctx, map, n, nctx->viewport, 0);
92}
93
94/* TnL renderer entry points */
95
96static void
97swtnl_restart_ttri(struct nv04_context *nv04, struct nouveau_pushbuf *push)
98{
99	BEGIN_NV04(push, NV04_TTRI(COLORKEY), 7);
100	PUSH_DATA (push, nv04->colorkey);
101	PUSH_RELOC(push, nv04->texture[0]->bo, nv04->texture[0]->offset,
102			 NOUVEAU_BO_LOW, 0, 0);
103	PUSH_RELOC(push, nv04->texture[0]->bo, nv04->format[0], NOUVEAU_BO_OR,
104			 NV04_TEXTURED_TRIANGLE_FORMAT_DMA_A,
105			 NV04_TEXTURED_TRIANGLE_FORMAT_DMA_B);
106	PUSH_DATA (push, nv04->filter[0]);
107	PUSH_DATA (push, nv04->blend);
108	PUSH_DATA (push, nv04->ctrl[0] & ~0x3e000000);
109	PUSH_DATA (push, nv04->fog);
110}
111
112static void
113swtnl_restart_mtri(struct nv04_context *nv04, struct nouveau_pushbuf *push)
114{
115	BEGIN_NV04(push, NV04_MTRI(OFFSET(0)), 8);
116	PUSH_RELOC(push, nv04->texture[0]->bo, nv04->texture[0]->offset,
117			 NOUVEAU_BO_LOW, 0, 0);
118	PUSH_RELOC(push, nv04->texture[1]->bo, nv04->texture[1]->offset,
119			 NOUVEAU_BO_LOW, 0, 0);
120	PUSH_RELOC(push, nv04->texture[0]->bo, nv04->format[0], NOUVEAU_BO_OR,
121			 NV04_TEXTURED_TRIANGLE_FORMAT_DMA_A,
122			 NV04_TEXTURED_TRIANGLE_FORMAT_DMA_B);
123	PUSH_RELOC(push, nv04->texture[1]->bo, nv04->format[1], NOUVEAU_BO_OR,
124			 NV04_TEXTURED_TRIANGLE_FORMAT_DMA_A,
125			 NV04_TEXTURED_TRIANGLE_FORMAT_DMA_B);
126	PUSH_DATA (push, nv04->filter[0]);
127	PUSH_DATA (push, nv04->filter[1]);
128	PUSH_DATA (push, nv04->alpha[0]);
129	PUSH_DATA (push, nv04->color[0]);
130	BEGIN_NV04(push, NV04_MTRI(COMBINE_ALPHA(1)), 8);
131	PUSH_DATA (push, nv04->alpha[1]);
132	PUSH_DATA (push, nv04->color[1]);
133	PUSH_DATA (push, nv04->factor);
134	PUSH_DATA (push, nv04->blend & ~0x0000000f);
135	PUSH_DATA (push, nv04->ctrl[0]);
136	PUSH_DATA (push, nv04->ctrl[1]);
137	PUSH_DATA (push, nv04->ctrl[2]);
138	PUSH_DATA (push, nv04->fog);
139}
140
141static inline bool
142swtnl_restart(struct gl_context *ctx, int multi, unsigned vertex_size)
143{
144	const int tex_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD;
145	struct nv04_context *nv04 = to_nv04_context(ctx);
146	struct nouveau_pushbuf *push = context_push(ctx);
147	struct nouveau_pushbuf_refn refs[] = {
148		{ nv04->texture[0]->bo, tex_flags },
149		{ nv04->texture[1]->bo, tex_flags },
150	};
151
152	/* wait for enough space for state, and at least one whole primitive */
153	if (nouveau_pushbuf_space(push, 32 + (4 * vertex_size), 4, 0) ||
154	    nouveau_pushbuf_refn (push, refs, multi ? 2 : 1))
155		return false;
156
157	/* emit engine state */
158	if (multi)
159		swtnl_restart_mtri(nv04, push);
160	else
161		swtnl_restart_ttri(nv04, push);
162
163	return true;
164}
165
166static void
167swtnl_start(struct gl_context *ctx)
168{
169	struct nouveau_object *eng3d = nv04_context_engine(ctx);
170	struct nouveau_pushbuf *push = context_push(ctx);
171	unsigned vertex_size;
172
173	nouveau_pushbuf_bufctx(push, push->user_priv);
174	nouveau_pushbuf_validate(push);
175
176	swtnl_choose_attrs(ctx);
177
178	vertex_size = TNL_CONTEXT(ctx)->clipspace.vertex_size / 4;
179	if (eng3d->oclass == NV04_MULTITEX_TRIANGLE_CLASS)
180		swtnl_restart(ctx, 1, vertex_size);
181	else
182		swtnl_restart(ctx, 0, vertex_size);
183}
184
185static void
186swtnl_finish(struct gl_context *ctx)
187{
188	struct nouveau_pushbuf *push = context_push(ctx);
189
190	nouveau_pushbuf_bufctx(push, NULL);
191}
192
193static void
194swtnl_primitive(struct gl_context *ctx, GLenum mode)
195{
196}
197
198static void
199swtnl_reset_stipple(struct gl_context *ctx)
200{
201}
202
203/* Primitive rendering */
204
205#define BEGIN_PRIMITIVE(n)						\
206	struct nouveau_object *eng3d = to_nv04_context(ctx)->eng3d;	\
207	struct nouveau_pushbuf *push = context_push(ctx);		\
208	int vertex_size = TNL_CONTEXT(ctx)->clipspace.vertex_size / 4;	\
209	int multi = (eng3d->oclass == NV04_MULTITEX_TRIANGLE_CLASS);	\
210									\
211	if (PUSH_AVAIL(push) < 32 + (n * vertex_size)) {		\
212		if (!swtnl_restart(ctx, multi, vertex_size))		\
213			return;						\
214	}								\
215									\
216	BEGIN_NV04(push, NV04_TTRI(TLVERTEX_SX(0)), n * vertex_size);
217
218#define OUT_VERTEX(i)							\
219	PUSH_DATAp(push, _tnl_get_vertex(ctx, i), vertex_size);
220
221#define END_PRIMITIVE(draw)						\
222	if (multi) {							\
223		BEGIN_NV04(push, NV04_MTRI(DRAWPRIMITIVE(0)), 1);	\
224		PUSH_DATA (push, draw);					\
225	} else {							\
226		BEGIN_NV04(push, NV04_TTRI(DRAWPRIMITIVE(0)), 1);	\
227		PUSH_DATA (push, draw);					\
228	}
229
230static void
231swtnl_points(struct gl_context *ctx, GLuint first, GLuint last)
232{
233}
234
235static void
236swtnl_line(struct gl_context *ctx, GLuint v1, GLuint v2)
237{
238}
239
240static void
241swtnl_triangle(struct gl_context *ctx, GLuint v1, GLuint v2, GLuint v3)
242{
243	BEGIN_PRIMITIVE(3);
244	OUT_VERTEX(v1);
245	OUT_VERTEX(v2);
246	OUT_VERTEX(v3);
247	END_PRIMITIVE(0x102);
248}
249
250static void
251swtnl_quad(struct gl_context *ctx, GLuint v1, GLuint v2, GLuint v3, GLuint v4)
252{
253	BEGIN_PRIMITIVE(4);
254	OUT_VERTEX(v1);
255	OUT_VERTEX(v2);
256	OUT_VERTEX(v3);
257	OUT_VERTEX(v4);
258	END_PRIMITIVE(0x213103);
259}
260
261/* TnL initialization. */
262void
263nv04_render_init(struct gl_context *ctx)
264{
265	TNLcontext *tnl = TNL_CONTEXT(ctx);
266
267	tnl->Driver.RunPipeline = _tnl_run_pipeline;
268	tnl->Driver.Render.Interp = _tnl_interp;
269	tnl->Driver.Render.CopyPV = _tnl_copy_pv;
270	tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon;
271	tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine;
272	tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
273
274	tnl->Driver.Render.Start = swtnl_start;
275	tnl->Driver.Render.Finish = swtnl_finish;
276	tnl->Driver.Render.PrimitiveNotify = swtnl_primitive;
277	tnl->Driver.Render.ResetLineStipple = swtnl_reset_stipple;
278
279	tnl->Driver.Render.Points = swtnl_points;
280	tnl->Driver.Render.Line = swtnl_line;
281	tnl->Driver.Render.Triangle = swtnl_triangle;
282	tnl->Driver.Render.Quad = swtnl_quad;
283
284	_tnl_need_projected_coords(ctx, GL_TRUE);
285	_tnl_init_vertices(ctx, tnl->vb.Size,
286			   NUM_VERTEX_ATTRS * 4 * sizeof(GLfloat));
287	_tnl_allow_pixel_fog(ctx, GL_FALSE);
288	_tnl_wakeup(ctx);
289}
290
291void
292nv04_render_destroy(struct gl_context *ctx)
293{
294}
295