1/*
2 * Copyright (C) 2009-2010 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_fbo.h"
30#include "nouveau_util.h"
31#include "nv04_3d.xml.h"
32#include "nv04_driver.h"
33
34static GLboolean
35texunit_needs_combiners(struct gl_texture_unit *u)
36{
37	struct gl_texture_object *t = u->_Current;
38	struct gl_texture_image *ti = t->Image[0][t->BaseLevel];
39
40	return ti->TexFormat == MESA_FORMAT_A8 ||
41		ti->TexFormat == MESA_FORMAT_L8 ||
42		u->EnvMode == GL_COMBINE ||
43		u->EnvMode == GL_COMBINE4_NV ||
44		u->EnvMode == GL_BLEND ||
45		u->EnvMode == GL_ADD;
46}
47
48struct nouveau_object *
49nv04_context_engine(struct gl_context *ctx)
50{
51	struct nv04_context *nctx = to_nv04_context(ctx);
52	struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
53	struct nouveau_pushbuf *push = context_push(ctx);
54	struct nouveau_object *fahrenheit;
55
56	if ((ctx->Texture.Unit[0]._ReallyEnabled &&
57	     texunit_needs_combiners(&ctx->Texture.Unit[0])) ||
58	    ctx->Texture.Unit[1]._ReallyEnabled ||
59	    ctx->Stencil.Enabled ||
60	    !(ctx->Color.ColorMask[0][RCOMP] &&
61	      ctx->Color.ColorMask[0][GCOMP] &&
62	      ctx->Color.ColorMask[0][BCOMP] &&
63	      ctx->Color.ColorMask[0][ACOMP]))
64		fahrenheit = hw->eng3dm;
65	else
66		fahrenheit = hw->eng3d;
67
68	if (fahrenheit != nctx->eng3d) {
69		BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
70		PUSH_DATA (push, fahrenheit->handle);
71		nctx->eng3d = fahrenheit;
72	}
73
74	return fahrenheit;
75}
76
77static void
78nv04_hwctx_init(struct gl_context *ctx)
79{
80	struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
81	struct nouveau_pushbuf *push = context_push(ctx);
82	struct nv04_fifo *fifo = hw->chan->data;
83
84	BEGIN_NV04(push, NV01_SUBC(SURF, OBJECT), 1);
85	PUSH_DATA (push, hw->surf3d->handle);
86	BEGIN_NV04(push, NV04_SF3D(DMA_NOTIFY), 3);
87	PUSH_DATA (push, hw->ntfy->handle);
88	PUSH_DATA (push, fifo->vram);
89	PUSH_DATA (push, fifo->vram);
90
91	BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
92	PUSH_DATA (push, hw->eng3d->handle);
93	BEGIN_NV04(push, NV04_TTRI(DMA_NOTIFY), 4);
94	PUSH_DATA (push, hw->ntfy->handle);
95	PUSH_DATA (push, fifo->vram);
96	PUSH_DATA (push, fifo->gart);
97	PUSH_DATA (push, hw->surf3d->handle);
98
99	BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
100	PUSH_DATA (push, hw->eng3dm->handle);
101	BEGIN_NV04(push, NV04_MTRI(DMA_NOTIFY), 4);
102	PUSH_DATA (push, hw->ntfy->handle);
103	PUSH_DATA (push, fifo->vram);
104	PUSH_DATA (push, fifo->gart);
105	PUSH_DATA (push, hw->surf3d->handle);
106
107	PUSH_KICK (push);
108}
109
110static void
111init_dummy_texture(struct gl_context *ctx)
112{
113	struct nouveau_surface *s = &to_nv04_context(ctx)->dummy_texture;
114
115	nouveau_surface_alloc(ctx, s, SWIZZLED,
116			      NOUVEAU_BO_MAP | NOUVEAU_BO_VRAM,
117			      MESA_FORMAT_ARGB8888, 1, 1);
118
119	nouveau_bo_map(s->bo, NOUVEAU_BO_WR, context_client(ctx));
120	*(uint32_t *)s->bo->map = 0xffffffff;
121}
122
123static void
124nv04_context_destroy(struct gl_context *ctx)
125{
126	struct nouveau_context *nctx = to_nouveau_context(ctx);
127
128	nv04_surface_takedown(ctx);
129	nv04_render_destroy(ctx);
130	nouveau_surface_ref(NULL, &to_nv04_context(ctx)->dummy_texture);
131
132	nouveau_object_del(&nctx->hw.eng3d);
133	nouveau_object_del(&nctx->hw.eng3dm);
134	nouveau_object_del(&nctx->hw.surf3d);
135
136	nouveau_context_deinit(ctx);
137	FREE(ctx);
138}
139
140static struct gl_context *
141nv04_context_create(struct nouveau_screen *screen, const struct gl_config *visual,
142		    struct gl_context *share_ctx)
143{
144	struct nv04_context *nctx;
145	struct nouveau_hw_state *hw;
146	struct gl_context *ctx;
147	int ret;
148
149	nctx = CALLOC_STRUCT(nv04_context);
150	if (!nctx)
151		return NULL;
152
153	ctx = &nctx->base.base;
154	hw = &nctx->base.hw;
155
156	if (!nouveau_context_init(ctx, screen, visual, share_ctx))
157		goto fail;
158
159	/* GL constants. */
160	ctx->Const.MaxTextureLevels = 11;
161	ctx->Const.MaxTextureCoordUnits = NV04_TEXTURE_UNITS;
162	ctx->Const.MaxTextureImageUnits = NV04_TEXTURE_UNITS;
163	ctx->Const.MaxTextureUnits = NV04_TEXTURE_UNITS;
164	ctx->Const.MaxTextureMaxAnisotropy = 2;
165	ctx->Const.MaxTextureLodBias = 15;
166
167	/* 2D engine. */
168	ret = nv04_surface_init(ctx);
169	if (!ret)
170		goto fail;
171
172	/* 3D engine. */
173	ret = nouveau_object_new(context_chan(ctx), 0xbeef0001,
174				 NV04_TEXTURED_TRIANGLE_CLASS, NULL, 0,
175				 &hw->eng3d);
176	if (ret)
177		goto fail;
178
179	ret = nouveau_object_new(context_chan(ctx), 0xbeef0002,
180				 NV04_MULTITEX_TRIANGLE_CLASS, NULL, 0,
181				 &hw->eng3dm);
182	if (ret)
183		goto fail;
184
185	ret = nouveau_object_new(context_chan(ctx), 0xbeef0003,
186				 NV04_SURFACE_3D_CLASS, NULL, 0,
187				 &hw->surf3d);
188	if (ret)
189		goto fail;
190
191	init_dummy_texture(ctx);
192	nv04_hwctx_init(ctx);
193	nv04_render_init(ctx);
194
195	return ctx;
196
197fail:
198	nv04_context_destroy(ctx);
199	return NULL;
200}
201
202const struct nouveau_driver nv04_driver = {
203	.context_create = nv04_context_create,
204	.context_destroy = nv04_context_destroy,
205	.surface_copy = nv04_surface_copy,
206	.surface_fill = nv04_surface_fill,
207	.emit = (nouveau_state_func[]) {
208		nv04_defer_control,
209		nouveau_emit_nothing,
210		nv04_defer_blend,
211		nv04_defer_blend,
212		nouveau_emit_nothing,
213		nouveau_emit_nothing,
214		nouveau_emit_nothing,
215		nouveau_emit_nothing,
216		nouveau_emit_nothing,
217		nouveau_emit_nothing,
218		nv04_defer_control,
219		nouveau_emit_nothing,
220		nv04_defer_control,
221		nouveau_emit_nothing,
222		nv04_defer_control,
223		nv04_defer_control,
224		nouveau_emit_nothing,
225		nv04_emit_framebuffer,
226		nv04_defer_blend,
227		nouveau_emit_nothing,
228		nouveau_emit_nothing,
229		nouveau_emit_nothing,
230		nouveau_emit_nothing,
231		nouveau_emit_nothing,
232		nouveau_emit_nothing,
233		nouveau_emit_nothing,
234		nouveau_emit_nothing,
235		nouveau_emit_nothing,
236		nouveau_emit_nothing,
237		nouveau_emit_nothing,
238		nouveau_emit_nothing,
239		nouveau_emit_nothing,
240		nouveau_emit_nothing,
241		nouveau_emit_nothing,
242		nouveau_emit_nothing,
243		nouveau_emit_nothing,
244		nouveau_emit_nothing,
245		nouveau_emit_nothing,
246		nouveau_emit_nothing,
247		nouveau_emit_nothing,
248		nouveau_emit_nothing,
249		nouveau_emit_nothing,
250		nouveau_emit_nothing,
251		nouveau_emit_nothing,
252		nouveau_emit_nothing,
253		nouveau_emit_nothing,
254		nouveau_emit_nothing,
255		nouveau_emit_nothing,
256		nv04_emit_scissor,
257		nv04_defer_blend,
258		nv04_defer_control,
259		nv04_defer_control,
260		nv04_defer_control,
261		nv04_emit_tex_env,
262		nv04_emit_tex_env,
263		nouveau_emit_nothing,
264		nouveau_emit_nothing,
265		nouveau_emit_nothing,
266		nouveau_emit_nothing,
267		nouveau_emit_nothing,
268		nouveau_emit_nothing,
269		nouveau_emit_nothing,
270		nouveau_emit_nothing,
271		nouveau_emit_nothing,
272		nouveau_emit_nothing,
273		nv04_emit_tex_obj,
274		nv04_emit_tex_obj,
275		nouveau_emit_nothing,
276		nouveau_emit_nothing,
277		nouveau_emit_nothing,
278		nv04_emit_blend,
279		nv04_emit_control,
280	},
281	.num_emit = NUM_NV04_STATE,
282};
283