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_fbo.h"
30 #include "nouveau_util.h"
31 #include "nv_object.xml.h"
32 #include "nv10_3d.xml.h"
33 #include "nv10_driver.h"
34
35 static inline unsigned
get_rt_format(mesa_format format)36 get_rt_format(mesa_format format)
37 {
38 switch (format) {
39 case MESA_FORMAT_B8G8R8X8_UNORM:
40 return NV10_3D_RT_FORMAT_COLOR_X8R8G8B8;
41 case MESA_FORMAT_B8G8R8A8_UNORM:
42 return NV10_3D_RT_FORMAT_COLOR_A8R8G8B8;
43 case MESA_FORMAT_B5G6R5_UNORM:
44 return NV10_3D_RT_FORMAT_COLOR_R5G6B5;
45 case MESA_FORMAT_Z_UNORM16:
46 return NV10_3D_RT_FORMAT_DEPTH_Z16;
47 case MESA_FORMAT_S8_UINT_Z24_UNORM:
48 return NV10_3D_RT_FORMAT_DEPTH_Z24S8;
49 default:
50 assert(0);
51 }
52 }
53
54 static void
setup_hierz_buffer(struct gl_context * ctx)55 setup_hierz_buffer(struct gl_context *ctx)
56 {
57 struct nouveau_pushbuf *push = context_push(ctx);
58 struct gl_framebuffer *fb = ctx->DrawBuffer;
59 struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb);
60 unsigned pitch = align(fb->Width, 128),
61 height = align(fb->Height, 2),
62 size = pitch * height;
63
64 if (!nfb->hierz.bo || nfb->hierz.bo->size != size) {
65 union nouveau_bo_config config = {
66 .nv04.surf_flags = NV04_BO_ZETA,
67 .nv04.surf_pitch = 0
68 };
69
70 nouveau_bo_ref(NULL, &nfb->hierz.bo);
71 nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_VRAM, 0, size,
72 &config, &nfb->hierz.bo);
73 }
74
75 PUSH_SPACE(push, 11);
76 BEGIN_NV04(push, NV17_3D(HIERZ_OFFSET), 1);
77 PUSH_MTHDl(push, NV17_3D(HIERZ_OFFSET), BUFCTX_FB,
78 nfb->hierz.bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR);
79 BEGIN_NV04(push, NV17_3D(HIERZ_WINDOW_X), 4);
80 PUSH_DATAf(push, - 1792);
81 PUSH_DATAf(push, - 2304 + fb->Height);
82 PUSH_DATAf(push, fb->_DepthMaxF / 2);
83 PUSH_DATAf(push, 0);
84
85 BEGIN_NV04(push, NV17_3D(HIERZ_PITCH), 1);
86 PUSH_DATA (push, pitch);
87
88 BEGIN_NV04(push, NV17_3D(HIERZ_ENABLE), 1);
89 PUSH_DATA (push, 1);
90 }
91
92 void
nv10_emit_framebuffer(struct gl_context * ctx,int emit)93 nv10_emit_framebuffer(struct gl_context *ctx, int emit)
94 {
95 struct nouveau_pushbuf *push = context_push(ctx);
96 struct gl_framebuffer *fb = ctx->DrawBuffer;
97 struct nouveau_surface *s;
98 unsigned rt_format = NV10_3D_RT_FORMAT_TYPE_LINEAR;
99 unsigned rt_pitch = 0, zeta_pitch = 0;
100 unsigned bo_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR;
101
102 if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT)
103 return;
104
105 PUSH_RESET(push, BUFCTX_FB);
106
107 /* At least nv11 seems to get sad if we don't do this before
108 * swapping RTs.*/
109 if (context_eng3d(ctx)->oclass < NV17_3D_CLASS) {
110 int i;
111
112 for (i = 0; i < 6; i++) {
113 BEGIN_NV04(push, NV04_GRAPH(3D, NOP), 1);
114 PUSH_DATA (push, 0);
115 }
116 }
117
118 /* Render target */
119 if (fb->_ColorDrawBuffers[0]) {
120 s = &to_nouveau_renderbuffer(
121 fb->_ColorDrawBuffers[0])->surface;
122
123 rt_format |= get_rt_format(s->format);
124 zeta_pitch = rt_pitch = s->pitch;
125
126 BEGIN_NV04(push, NV10_3D(COLOR_OFFSET), 1);
127 PUSH_MTHDl(push, NV10_3D(COLOR_OFFSET), BUFCTX_FB,
128 s->bo, 0, bo_flags);
129 }
130
131 /* depth/stencil */
132 if (fb->Attachment[BUFFER_DEPTH].Renderbuffer) {
133 s = &to_nouveau_renderbuffer(
134 fb->Attachment[BUFFER_DEPTH].Renderbuffer)->surface;
135
136 rt_format |= get_rt_format(s->format);
137 zeta_pitch = s->pitch;
138
139 BEGIN_NV04(push, NV10_3D(ZETA_OFFSET), 1);
140 PUSH_MTHDl(push, NV10_3D(ZETA_OFFSET), BUFCTX_FB,
141 s->bo, 0, bo_flags);
142
143 if (context_eng3d(ctx)->oclass >= NV17_3D_CLASS) {
144 setup_hierz_buffer(ctx);
145 context_dirty(ctx, ZCLEAR);
146 }
147 }
148
149 BEGIN_NV04(push, NV10_3D(RT_FORMAT), 2);
150 PUSH_DATA (push, rt_format);
151 PUSH_DATA (push, zeta_pitch << 16 | rt_pitch);
152
153 context_dirty(ctx, VIEWPORT);
154 context_dirty(ctx, SCISSOR);
155 context_dirty(ctx, DEPTH);
156 }
157
158 void
nv10_emit_render_mode(struct gl_context * ctx,int emit)159 nv10_emit_render_mode(struct gl_context *ctx, int emit)
160 {
161 }
162
163 void
nv10_emit_scissor(struct gl_context * ctx,int emit)164 nv10_emit_scissor(struct gl_context *ctx, int emit)
165 {
166 struct nouveau_pushbuf *push = context_push(ctx);
167 int x, y, w, h;
168
169 get_scissors(ctx->DrawBuffer, &x, &y, &w, &h);
170
171 BEGIN_NV04(push, NV10_3D(RT_HORIZ), 2);
172 PUSH_DATA (push, w << 16 | x);
173 PUSH_DATA (push, h << 16 | y);
174 }
175
176 void
nv10_emit_viewport(struct gl_context * ctx,int emit)177 nv10_emit_viewport(struct gl_context *ctx, int emit)
178 {
179 struct nouveau_pushbuf *push = context_push(ctx);
180 struct gl_viewport_attrib *vp = &ctx->ViewportArray[0];
181 struct gl_framebuffer *fb = ctx->DrawBuffer;
182 float a[4] = {};
183
184 get_viewport_translate(ctx, a);
185 a[0] -= 2048;
186 a[1] -= 2048;
187 if (nv10_use_viewport_zclear(ctx))
188 a[2] = nv10_transform_depth(ctx, (vp->Far + vp->Near) / 2);
189
190 BEGIN_NV04(push, NV10_3D(VIEWPORT_TRANSLATE_X), 4);
191 PUSH_DATAp(push, a, 4);
192
193 BEGIN_NV04(push, NV10_3D(VIEWPORT_CLIP_HORIZ(0)), 1);
194 PUSH_DATA (push, (fb->Width - 1) << 16 | 0x08000800);
195 BEGIN_NV04(push, NV10_3D(VIEWPORT_CLIP_VERT(0)), 1);
196 PUSH_DATA (push, (fb->Height - 1) << 16 | 0x08000800);
197
198 context_dirty(ctx, PROJECTION);
199 }
200
201 void
nv10_emit_zclear(struct gl_context * ctx,int emit)202 nv10_emit_zclear(struct gl_context *ctx, int emit)
203 {
204 struct nouveau_context *nctx = to_nouveau_context(ctx);
205 struct nouveau_pushbuf *push = context_push(ctx);
206 struct nouveau_framebuffer *nfb =
207 to_nouveau_framebuffer(ctx->DrawBuffer);
208
209 if (nfb->hierz.bo) {
210 BEGIN_NV04(push, NV17_3D(ZCLEAR_ENABLE), 2);
211 PUSH_DATAb(push, !nctx->hierz.clear_blocked);
212 PUSH_DATA (push, nfb->hierz.clear_value |
213 (nctx->hierz.clear_seq & 0xff));
214 } else {
215 BEGIN_NV04(push, NV10_3D(DEPTH_RANGE_NEAR), 2);
216 PUSH_DATAf(push, nv10_transform_depth(ctx, 0));
217 PUSH_DATAf(push, nv10_transform_depth(ctx, 1));
218 context_dirty(ctx, VIEWPORT);
219 }
220 }
221