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 <stdbool.h>
28#include "nouveau_driver.h"
29#include "nouveau_context.h"
30#include "nouveau_fbo.h"
31#include "nouveau_util.h"
32#include "nv_object.xml.h"
33#include "nv20_3d.xml.h"
34#include "nv04_driver.h"
35#include "nv10_driver.h"
36#include "nv20_driver.h"
37#include "util/u_memory.h"
38
39static void
40nv20_clear(struct gl_context *ctx, GLbitfield buffers)
41{
42	struct nouveau_context *nctx = to_nouveau_context(ctx);
43	struct nouveau_pushbuf *push = context_push(ctx);
44	struct gl_framebuffer *fb = ctx->DrawBuffer;
45	uint32_t clear = 0;
46
47	nouveau_validate_framebuffer(ctx);
48
49	nouveau_pushbuf_bufctx(push, nctx->hw.bufctx);
50	if (nouveau_pushbuf_validate(push)) {
51		nouveau_pushbuf_bufctx(push, NULL);
52		return;
53	}
54
55	if (buffers & BUFFER_BITS_COLOR) {
56		struct nouveau_surface *s = &to_nouveau_renderbuffer(
57			fb->_ColorDrawBuffers[0])->surface;
58
59		if (GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0))
60			clear |= NV20_3D_CLEAR_BUFFERS_COLOR_R;
61		if (GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1))
62			clear |= NV20_3D_CLEAR_BUFFERS_COLOR_G;
63		if (GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2))
64			clear |= NV20_3D_CLEAR_BUFFERS_COLOR_B;
65		if (GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3))
66			clear |= NV20_3D_CLEAR_BUFFERS_COLOR_A;
67
68		BEGIN_NV04(push, NV20_3D(CLEAR_VALUE), 1);
69		PUSH_DATA (push, pack_rgba_clamp_f(s->format, ctx->Color.ClearColor.f));
70
71		buffers &= ~BUFFER_BITS_COLOR;
72	}
73
74	if (buffers & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
75		struct nouveau_surface *s = &to_nouveau_renderbuffer(
76			fb->Attachment[BUFFER_DEPTH].Renderbuffer)->surface;
77
78		if (buffers & BUFFER_BIT_DEPTH && ctx->Depth.Mask)
79			clear |= NV20_3D_CLEAR_BUFFERS_DEPTH;
80		if (buffers & BUFFER_BIT_STENCIL && ctx->Stencil.WriteMask[0])
81			clear |= NV20_3D_CLEAR_BUFFERS_STENCIL;
82
83		BEGIN_NV04(push, NV20_3D(CLEAR_DEPTH_VALUE), 1);
84		PUSH_DATA (push, pack_zs_f(s->format, ctx->Depth.Clear,
85					 ctx->Stencil.Clear));
86
87		buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
88	}
89
90	BEGIN_NV04(push, NV20_3D(CLEAR_BUFFERS), 1);
91	PUSH_DATA (push, clear);
92
93	nouveau_pushbuf_bufctx(push, NULL);
94	nouveau_clear(ctx, buffers);
95}
96
97static void
98nv20_hwctx_init(struct gl_context *ctx)
99{
100	struct nouveau_pushbuf *push = context_push(ctx);
101	struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
102	struct nv04_fifo *fifo = hw->chan->data;
103	int i;
104
105	BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
106	PUSH_DATA (push, hw->eng3d->handle);
107	BEGIN_NV04(push, NV20_3D(DMA_NOTIFY), 1);
108	PUSH_DATA (push, hw->ntfy->handle);
109	BEGIN_NV04(push, NV20_3D(DMA_TEXTURE0), 2);
110	PUSH_DATA (push, fifo->vram);
111	PUSH_DATA (push, fifo->gart);
112	BEGIN_NV04(push, NV20_3D(DMA_COLOR), 2);
113	PUSH_DATA (push, fifo->vram);
114	PUSH_DATA (push, fifo->vram);
115	BEGIN_NV04(push, NV20_3D(DMA_VTXBUF0), 2);
116	PUSH_DATA (push, fifo->vram);
117	PUSH_DATA (push, fifo->gart);
118
119	BEGIN_NV04(push, NV20_3D(DMA_QUERY), 1);
120	PUSH_DATA (push, 0);
121
122	BEGIN_NV04(push, NV20_3D(RT_HORIZ), 2);
123	PUSH_DATA (push, 0);
124	PUSH_DATA (push, 0);
125
126	BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_HORIZ(0)), 1);
127	PUSH_DATA (push, 0xfff << 16 | 0x0);
128	BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_VERT(0)), 1);
129	PUSH_DATA (push, 0xfff << 16 | 0x0);
130
131	for (i = 1; i < NV20_3D_VIEWPORT_CLIP_HORIZ__LEN; i++) {
132		BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_HORIZ(i)), 1);
133		PUSH_DATA (push, 0);
134		BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_VERT(i)), 1);
135		PUSH_DATA (push, 0);
136	}
137
138	BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_MODE), 1);
139	PUSH_DATA (push, 0);
140
141	BEGIN_NV04(push, SUBC_3D(0x17e0), 3);
142	PUSH_DATAf(push, 0.0);
143	PUSH_DATAf(push, 0.0);
144	PUSH_DATAf(push, 1.0);
145
146	if (context_chipset(ctx) >= 0x25) {
147		BEGIN_NV04(push, NV20_3D(TEX_RCOMP), 1);
148		PUSH_DATA (push, NV20_3D_TEX_RCOMP_LEQUAL | 0xdb0);
149	} else {
150		BEGIN_NV04(push, SUBC_3D(0x1e68), 1);
151		PUSH_DATA (push, 0x4b800000); /* 16777216.000000 */
152		BEGIN_NV04(push, NV20_3D(TEX_RCOMP), 1);
153		PUSH_DATA (push, NV20_3D_TEX_RCOMP_LEQUAL);
154	}
155
156	BEGIN_NV04(push, SUBC_3D(0x290), 1);
157	PUSH_DATA (push, 0x10 << 16 | 1);
158	BEGIN_NV04(push, SUBC_3D(0x9fc), 1);
159	PUSH_DATA (push, 0);
160	BEGIN_NV04(push, SUBC_3D(0x1d80), 1);
161	PUSH_DATA (push, 1);
162	BEGIN_NV04(push, SUBC_3D(0x9f8), 1);
163	PUSH_DATA (push, 4);
164	BEGIN_NV04(push, SUBC_3D(0x17ec), 3);
165	PUSH_DATAf(push, 0.0);
166	PUSH_DATAf(push, 1.0);
167	PUSH_DATAf(push, 0.0);
168
169	if (context_chipset(ctx) >= 0x25) {
170		BEGIN_NV04(push, SUBC_3D(0x1d88), 1);
171		PUSH_DATA (push, 3);
172
173		BEGIN_NV04(push, NV25_3D(DMA_HIERZ), 1);
174		PUSH_DATA (push, fifo->vram);
175		BEGIN_NV04(push, NV25_3D(UNK01AC), 1);
176		PUSH_DATA (push, fifo->vram);
177	}
178
179	BEGIN_NV04(push, NV20_3D(DMA_FENCE), 1);
180	PUSH_DATA (push, 0);
181
182	BEGIN_NV04(push, SUBC_3D(0x1e98), 1);
183	PUSH_DATA (push, 0);
184
185	BEGIN_NV04(push, NV04_GRAPH(3D, NOTIFY), 1);
186	PUSH_DATA (push, 0);
187
188	BEGIN_NV04(push, SUBC_3D(0x120), 3);
189	PUSH_DATA (push, 0);
190	PUSH_DATA (push, 1);
191	PUSH_DATA (push, 2);
192
193	if (context_chipset(ctx) >= 0x25) {
194		BEGIN_NV04(push, SUBC_3D(0x1da4), 1);
195		PUSH_DATA (push, 0);
196	}
197
198	BEGIN_NV04(push, NV20_3D(RT_HORIZ), 2);
199	PUSH_DATA (push, 0 << 16 | 0);
200	PUSH_DATA (push, 0 << 16 | 0);
201
202	BEGIN_NV04(push, NV20_3D(ALPHA_FUNC_ENABLE), 1);
203	PUSH_DATA (push, 0);
204	BEGIN_NV04(push, NV20_3D(ALPHA_FUNC_FUNC), 2);
205	PUSH_DATA (push, NV20_3D_ALPHA_FUNC_FUNC_ALWAYS);
206	PUSH_DATA (push, 0);
207
208	for (i = 0; i < NV20_3D_TEX__LEN; i++) {
209		BEGIN_NV04(push, NV20_3D(TEX_ENABLE(i)), 1);
210		PUSH_DATA (push, 0);
211	}
212
213	BEGIN_NV04(push, NV20_3D(TEX_SHADER_OP), 1);
214	PUSH_DATA (push, 0);
215	BEGIN_NV04(push, NV20_3D(TEX_SHADER_CULL_MODE), 1);
216	PUSH_DATA (push, 0);
217
218	BEGIN_NV04(push, NV20_3D(RC_IN_ALPHA(0)), 4);
219	PUSH_DATA (push, 0x30d410d0);
220	PUSH_DATA (push, 0);
221	PUSH_DATA (push, 0);
222	PUSH_DATA (push, 0);
223	BEGIN_NV04(push, NV20_3D(RC_OUT_RGB(0)), 4);
224	PUSH_DATA (push, 0x00000c00);
225	PUSH_DATA (push, 0);
226	PUSH_DATA (push, 0);
227	PUSH_DATA (push, 0);
228	BEGIN_NV04(push, NV20_3D(RC_ENABLE), 1);
229	PUSH_DATA (push, 0x00011101);
230	BEGIN_NV04(push, NV20_3D(RC_FINAL0), 2);
231	PUSH_DATA (push, 0x130e0300);
232	PUSH_DATA (push, 0x0c091c80);
233	BEGIN_NV04(push, NV20_3D(RC_OUT_ALPHA(0)), 4);
234	PUSH_DATA (push, 0x00000c00);
235	PUSH_DATA (push, 0);
236	PUSH_DATA (push, 0);
237	PUSH_DATA (push, 0);
238	BEGIN_NV04(push, NV20_3D(RC_IN_RGB(0)), 4);
239	PUSH_DATA (push, 0x20c400c0);
240	PUSH_DATA (push, 0);
241	PUSH_DATA (push, 0);
242	PUSH_DATA (push, 0);
243	BEGIN_NV04(push, NV20_3D(RC_COLOR0), 2);
244	PUSH_DATA (push, 0);
245	PUSH_DATA (push, 0);
246	BEGIN_NV04(push, NV20_3D(RC_CONSTANT_COLOR0(0)), 4);
247	PUSH_DATA (push, 0x035125a0);
248	PUSH_DATA (push, 0);
249	PUSH_DATA (push, 0x40002000);
250	PUSH_DATA (push, 0);
251
252	BEGIN_NV04(push, NV20_3D(MULTISAMPLE_CONTROL), 1);
253	PUSH_DATA (push, 0xffff0000);
254	BEGIN_NV04(push, NV20_3D(BLEND_FUNC_ENABLE), 1);
255	PUSH_DATA (push, 0);
256	BEGIN_NV04(push, NV20_3D(DITHER_ENABLE), 1);
257	PUSH_DATA (push, 0);
258	BEGIN_NV04(push, NV20_3D(STENCIL_ENABLE), 1);
259	PUSH_DATA (push, 0);
260	BEGIN_NV04(push, NV20_3D(BLEND_FUNC_SRC), 4);
261	PUSH_DATA (push, NV20_3D_BLEND_FUNC_SRC_ONE);
262	PUSH_DATA (push, NV20_3D_BLEND_FUNC_DST_ZERO);
263	PUSH_DATA (push, 0);
264	PUSH_DATA (push, NV20_3D_BLEND_EQUATION_FUNC_ADD);
265	BEGIN_NV04(push, NV20_3D(STENCIL_MASK), 7);
266	PUSH_DATA (push, 0xff);
267	PUSH_DATA (push, NV20_3D_STENCIL_FUNC_FUNC_ALWAYS);
268	PUSH_DATA (push, 0);
269	PUSH_DATA (push, 0xff);
270	PUSH_DATA (push, NV20_3D_STENCIL_OP_FAIL_KEEP);
271	PUSH_DATA (push, NV20_3D_STENCIL_OP_ZFAIL_KEEP);
272	PUSH_DATA (push, NV20_3D_STENCIL_OP_ZPASS_KEEP);
273
274	BEGIN_NV04(push, NV20_3D(COLOR_LOGIC_OP_ENABLE), 2);
275	PUSH_DATA (push, 0);
276	PUSH_DATA (push, NV20_3D_COLOR_LOGIC_OP_OP_COPY);
277	BEGIN_NV04(push, SUBC_3D(0x17cc), 1);
278	PUSH_DATA (push, 0);
279	if (context_chipset(ctx) >= 0x25) {
280		BEGIN_NV04(push, SUBC_3D(0x1d84), 1);
281		PUSH_DATA (push, 1);
282	}
283	BEGIN_NV04(push, NV20_3D(LIGHTING_ENABLE), 1);
284	PUSH_DATA (push, 0);
285	BEGIN_NV04(push, NV20_3D(LIGHT_MODEL), 1);
286	PUSH_DATA (push, NV20_3D_LIGHT_MODEL_VIEWER_NONLOCAL);
287	BEGIN_NV04(push, NV20_3D(SEPARATE_SPECULAR_ENABLE), 1);
288	PUSH_DATA (push, 0);
289	BEGIN_NV04(push, NV20_3D(LIGHT_MODEL_TWO_SIDE_ENABLE), 1);
290	PUSH_DATA (push, 0);
291	BEGIN_NV04(push, NV20_3D(ENABLED_LIGHTS), 1);
292	PUSH_DATA (push, 0);
293	BEGIN_NV04(push, NV20_3D(NORMALIZE_ENABLE), 1);
294	PUSH_DATA (push, 0);
295	BEGIN_NV04(push, NV20_3D(POLYGON_STIPPLE_PATTERN(0)),
296		   NV20_3D_POLYGON_STIPPLE_PATTERN__LEN);
297	for (i = 0; i < NV20_3D_POLYGON_STIPPLE_PATTERN__LEN; i++) {
298		PUSH_DATA (push, 0xffffffff);
299	}
300
301	BEGIN_NV04(push, NV20_3D(POLYGON_OFFSET_POINT_ENABLE), 3);
302	PUSH_DATA (push, 0);
303	PUSH_DATA (push, 0);
304	PUSH_DATA (push, 0);
305	BEGIN_NV04(push, NV20_3D(DEPTH_FUNC), 1);
306	PUSH_DATA (push, NV20_3D_DEPTH_FUNC_LESS);
307	BEGIN_NV04(push, NV20_3D(DEPTH_WRITE_ENABLE), 1);
308	PUSH_DATA (push, 0);
309	BEGIN_NV04(push, NV20_3D(DEPTH_TEST_ENABLE), 1);
310	PUSH_DATA (push, 0);
311	BEGIN_NV04(push, NV20_3D(POLYGON_OFFSET_FACTOR), 2);
312	PUSH_DATAf(push, 0.0);
313	PUSH_DATAf(push, 0.0);
314	BEGIN_NV04(push, NV20_3D(DEPTH_CLAMP), 1);
315	PUSH_DATA (push, 1);
316	if (context_chipset(ctx) < 0x25) {
317		BEGIN_NV04(push, SUBC_3D(0x1d84), 1);
318		PUSH_DATA (push, 3);
319	}
320	BEGIN_NV04(push, NV20_3D(POINT_SIZE), 1);
321	if (context_chipset(ctx) >= 0x25)
322		PUSH_DATAf(push, 1.0);
323	else
324		PUSH_DATA (push, 8);
325
326	if (context_chipset(ctx) >= 0x25) {
327		BEGIN_NV04(push, NV20_3D(POINT_PARAMETERS_ENABLE), 1);
328		PUSH_DATA (push, 0);
329		BEGIN_NV04(push, SUBC_3D(0x0a1c), 1);
330		PUSH_DATA (push, 0x800);
331	} else {
332		BEGIN_NV04(push, NV20_3D(POINT_PARAMETERS_ENABLE), 2);
333		PUSH_DATA (push, 0);
334		PUSH_DATA (push, 0);
335	}
336
337	BEGIN_NV04(push, NV20_3D(LINE_WIDTH), 1);
338	PUSH_DATA (push, 8);
339	BEGIN_NV04(push, NV20_3D(LINE_SMOOTH_ENABLE), 1);
340	PUSH_DATA (push, 0);
341	BEGIN_NV04(push, NV20_3D(POLYGON_MODE_FRONT), 2);
342	PUSH_DATA (push, NV20_3D_POLYGON_MODE_FRONT_FILL);
343	PUSH_DATA (push, NV20_3D_POLYGON_MODE_BACK_FILL);
344	BEGIN_NV04(push, NV20_3D(CULL_FACE), 2);
345	PUSH_DATA (push, NV20_3D_CULL_FACE_BACK);
346	PUSH_DATA (push, NV20_3D_FRONT_FACE_CCW);
347	BEGIN_NV04(push, NV20_3D(POLYGON_SMOOTH_ENABLE), 1);
348	PUSH_DATA (push, 0);
349	BEGIN_NV04(push, NV20_3D(CULL_FACE_ENABLE), 1);
350	PUSH_DATA (push, 0);
351	BEGIN_NV04(push, NV20_3D(SHADE_MODEL), 1);
352	PUSH_DATA (push, NV20_3D_SHADE_MODEL_SMOOTH);
353	BEGIN_NV04(push, NV20_3D(POLYGON_STIPPLE_ENABLE), 1);
354	PUSH_DATA (push, 0);
355
356	BEGIN_NV04(push, NV20_3D(TEX_GEN_MODE(0,0)),
357		   4 * NV20_3D_TEX_GEN_MODE__ESIZE);
358	for (i=0; i < 4 * NV20_3D_TEX_GEN_MODE__LEN; i++)
359		PUSH_DATA (push, 0);
360
361	BEGIN_NV04(push, NV20_3D(FOG_COEFF(0)), 3);
362	PUSH_DATAf(push, 1.5);
363	PUSH_DATAf(push, -0.090168);
364	PUSH_DATAf(push, 0.0);
365	BEGIN_NV04(push, NV20_3D(FOG_MODE), 2);
366	PUSH_DATA (push, NV20_3D_FOG_MODE_EXP_SIGNED);
367	PUSH_DATA (push, NV20_3D_FOG_COORD_FOG);
368	BEGIN_NV04(push, NV20_3D(FOG_ENABLE), 2);
369	PUSH_DATA (push, 0);
370	PUSH_DATA (push, 0);
371
372	BEGIN_NV04(push, NV20_3D(ENGINE), 1);
373	PUSH_DATA (push, NV20_3D_ENGINE_FIXED);
374
375	for (i = 0; i < NV20_3D_TEX_MATRIX_ENABLE__LEN; i++) {
376		BEGIN_NV04(push, NV20_3D(TEX_MATRIX_ENABLE(i)), 1);
377		PUSH_DATA (push, 0);
378	}
379
380	BEGIN_NV04(push, NV20_3D(VERTEX_ATTR_4F_X(1)), 4 * 15);
381	PUSH_DATAf(push, 1.0);
382	PUSH_DATAf(push, 0.0);
383	PUSH_DATAf(push, 0.0);
384	PUSH_DATAf(push, 1.0);
385	PUSH_DATAf(push, 0.0);
386	PUSH_DATAf(push, 0.0);
387	PUSH_DATAf(push, 1.0);
388	PUSH_DATAf(push, 1.0);
389	PUSH_DATAf(push, 1.0);
390	PUSH_DATAf(push, 1.0);
391	PUSH_DATAf(push, 1.0);
392	PUSH_DATAf(push, 1.0);
393	for (i = 0; i < 12; i++) {
394		PUSH_DATAf(push, 0.0);
395		PUSH_DATAf(push, 0.0);
396		PUSH_DATAf(push, 0.0);
397		PUSH_DATAf(push, 1.0);
398	}
399
400	BEGIN_NV04(push, NV20_3D(EDGEFLAG_ENABLE), 1);
401	PUSH_DATA (push, 1);
402	BEGIN_NV04(push, NV20_3D(COLOR_MASK), 1);
403	PUSH_DATA (push, 0x00010101);
404	BEGIN_NV04(push, NV20_3D(CLEAR_VALUE), 1);
405	PUSH_DATA (push, 0);
406
407	BEGIN_NV04(push, NV20_3D(DEPTH_RANGE_NEAR), 2);
408	PUSH_DATAf(push, 0.0);
409	PUSH_DATAf(push, 16777216.0);
410
411	BEGIN_NV04(push, NV20_3D(VIEWPORT_TRANSLATE_X), 4);
412	PUSH_DATAf(push, 0.0);
413	PUSH_DATAf(push, 0.0);
414	PUSH_DATAf(push, 0.0);
415	PUSH_DATAf(push, 16777215.0);
416
417	BEGIN_NV04(push, NV20_3D(VIEWPORT_SCALE_X), 4);
418	PUSH_DATAf(push, 0.0);
419	PUSH_DATAf(push, 0.0);
420	PUSH_DATAf(push, 16777215.0 * 0.5);
421	PUSH_DATAf(push, 65535.0);
422
423	PUSH_KICK (push);
424}
425
426static void
427nv20_context_destroy(struct gl_context *ctx)
428{
429	struct nouveau_context *nctx = to_nouveau_context(ctx);
430
431	nv04_surface_takedown(ctx);
432	nv20_swtnl_destroy(ctx);
433	nv20_vbo_destroy(ctx);
434
435	nouveau_object_del(&nctx->hw.eng3d);
436
437	nouveau_context_deinit(ctx);
438	align_free(ctx);
439}
440
441static struct gl_context *
442nv20_context_create(struct nouveau_screen *screen, gl_api api,
443		    const struct gl_config *visual,
444		    struct gl_context *share_ctx)
445{
446	struct nouveau_context *nctx;
447	struct gl_context *ctx;
448	unsigned kelvin_class;
449	int ret;
450
451	nctx = align_calloc(sizeof(struct nouveau_context), 16);
452	if (!nctx)
453		return NULL;
454
455	ctx = &nctx->base;
456
457	if (!nouveau_context_init(ctx, api, screen, visual, share_ctx))
458		goto fail;
459
460	ctx->Extensions.ARB_texture_env_crossbar = true;
461	ctx->Extensions.ARB_texture_env_combine = true;
462	ctx->Extensions.ARB_texture_env_dot3 = true;
463	ctx->Extensions.EXT_texture_env_dot3 = true;
464	ctx->Extensions.NV_fog_distance = true;
465	ctx->Extensions.NV_texture_rectangle = true;
466	ctx->Extensions.EXT_texture_compression_s3tc = true;
467	ctx->Extensions.ANGLE_texture_compression_dxt = true;
468
469	/* GL constants. */
470	ctx->Const.MaxTextureCoordUnits = NV20_TEXTURE_UNITS;
471	ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = NV20_TEXTURE_UNITS;
472	ctx->Const.MaxTextureUnits = NV20_TEXTURE_UNITS;
473	ctx->Const.MaxTextureMaxAnisotropy = 8;
474	ctx->Const.MaxTextureLodBias = 15;
475	ctx->Driver.Clear = nv20_clear;
476
477	/* 2D engine. */
478	ret = nv04_surface_init(ctx);
479	if (!ret)
480		goto fail;
481
482	/* 3D engine. */
483	if (context_chipset(ctx) >= 0x25)
484		kelvin_class = NV25_3D_CLASS;
485	else
486		kelvin_class = NV20_3D_CLASS;
487
488	ret = nouveau_object_new(context_chan(ctx), 0xbeef0001, kelvin_class,
489				 NULL, 0, &nctx->hw.eng3d);
490	if (ret)
491		goto fail;
492
493	nv20_hwctx_init(ctx);
494	nv20_vbo_init(ctx);
495	nv20_swtnl_init(ctx);
496
497	return ctx;
498
499fail:
500	nv20_context_destroy(ctx);
501	return NULL;
502}
503
504const struct nouveau_driver nv20_driver = {
505	.context_create = nv20_context_create,
506	.context_destroy = nv20_context_destroy,
507	.surface_copy = nv04_surface_copy,
508	.surface_fill = nv04_surface_fill,
509	.emit = (nouveau_state_func[]) {
510		nv10_emit_alpha_func,
511		nv10_emit_blend_color,
512		nv10_emit_blend_equation,
513		nv10_emit_blend_func,
514		nv20_emit_clip_plane,
515		nv20_emit_clip_plane,
516		nv20_emit_clip_plane,
517		nv20_emit_clip_plane,
518		nv20_emit_clip_plane,
519		nv20_emit_clip_plane,
520		nv10_emit_color_mask,
521		nv20_emit_color_material,
522		nv10_emit_cull_face,
523		nv10_emit_front_face,
524		nv10_emit_depth,
525		nv10_emit_dither,
526		nv20_emit_frag,
527		nv20_emit_framebuffer,
528		nv20_emit_fog,
529		nv10_emit_light_enable,
530		nv20_emit_light_model,
531		nv20_emit_light_source,
532		nv20_emit_light_source,
533		nv20_emit_light_source,
534		nv20_emit_light_source,
535		nv20_emit_light_source,
536		nv20_emit_light_source,
537		nv20_emit_light_source,
538		nv20_emit_light_source,
539		nv10_emit_line_stipple,
540		nv10_emit_line_mode,
541		nv20_emit_logic_opcode,
542		nv20_emit_material_ambient,
543		nv20_emit_material_ambient,
544		nv20_emit_material_diffuse,
545		nv20_emit_material_diffuse,
546		nv20_emit_material_specular,
547		nv20_emit_material_specular,
548		nv20_emit_material_shininess,
549		nv20_emit_material_shininess,
550		nv20_emit_modelview,
551		nv20_emit_point_mode,
552		nv10_emit_point_parameter,
553		nv10_emit_polygon_mode,
554		nv10_emit_polygon_offset,
555		nv10_emit_polygon_stipple,
556		nv20_emit_projection,
557		nv10_emit_render_mode,
558		nv10_emit_scissor,
559		nv10_emit_shade_model,
560		nv10_emit_stencil_func,
561		nv10_emit_stencil_mask,
562		nv10_emit_stencil_op,
563		nv20_emit_tex_env,
564		nv20_emit_tex_env,
565		nv20_emit_tex_env,
566		nv20_emit_tex_env,
567		nv20_emit_tex_gen,
568		nv20_emit_tex_gen,
569		nv20_emit_tex_gen,
570		nv20_emit_tex_gen,
571		nv20_emit_tex_mat,
572		nv20_emit_tex_mat,
573		nv20_emit_tex_mat,
574		nv20_emit_tex_mat,
575		nv20_emit_tex_obj,
576		nv20_emit_tex_obj,
577		nv20_emit_tex_obj,
578		nv20_emit_tex_obj,
579		nv20_emit_viewport,
580		nv20_emit_tex_shader
581	},
582	.num_emit = NUM_NV20_STATE,
583};
584