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_gldefs.h"
31 #include "nouveau_util.h"
32 #include "nv20_3d.xml.h"
33 #include "nv20_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 NV20_3D_RT_FORMAT_COLOR_X8R8G8B8;
41 case MESA_FORMAT_B8G8R8A8_UNORM:
42 return NV20_3D_RT_FORMAT_COLOR_A8R8G8B8;
43 case MESA_FORMAT_B5G6R5_UNORM:
44 return NV20_3D_RT_FORMAT_COLOR_R5G6B5;
45 case MESA_FORMAT_Z_UNORM16:
46 return NV20_3D_RT_FORMAT_DEPTH_Z16;
47 case MESA_FORMAT_S8_UINT_Z24_UNORM:
48 return NV20_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 nouveau_bo_ref(NULL, &nfb->hierz.bo);
66 nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_VRAM, 0, size,
67 NULL, &nfb->hierz.bo);
68 }
69
70 BEGIN_NV04(push, NV25_3D(HIERZ_PITCH), 1);
71 PUSH_DATA (push, pitch);
72 BEGIN_NV04(push, NV25_3D(HIERZ_OFFSET), 1);
73 PUSH_MTHDl(push, NV25_3D(HIERZ_OFFSET), BUFCTX_FB,
74 nfb->hierz.bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR);
75 }
76
77 void
nv20_emit_framebuffer(struct gl_context * ctx,int emit)78 nv20_emit_framebuffer(struct gl_context *ctx, int emit)
79 {
80 struct nouveau_pushbuf *push = context_push(ctx);
81 struct gl_framebuffer *fb = ctx->DrawBuffer;
82 struct nouveau_surface *s;
83 unsigned rt_format = NV20_3D_RT_FORMAT_TYPE_LINEAR;
84 unsigned rt_pitch = 0, zeta_pitch = 0;
85 unsigned bo_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR;
86
87 if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT)
88 return;
89
90 PUSH_RESET(push, BUFCTX_FB);
91
92 /* Render target */
93 if (fb->_ColorDrawBuffers[0]) {
94 s = &to_nouveau_renderbuffer(
95 fb->_ColorDrawBuffers[0])->surface;
96
97 rt_format |= get_rt_format(s->format);
98 rt_pitch = s->pitch;
99
100 BEGIN_NV04(push, NV20_3D(COLOR_OFFSET), 1);
101 PUSH_MTHDl(push, NV20_3D(COLOR_OFFSET), BUFCTX_FB,
102 s->bo, 0, bo_flags);
103 }
104
105 /* depth/stencil */
106 if (fb->Attachment[BUFFER_DEPTH].Renderbuffer) {
107 s = &to_nouveau_renderbuffer(
108 fb->Attachment[BUFFER_DEPTH].Renderbuffer)->surface;
109
110 rt_format |= get_rt_format(s->format);
111 zeta_pitch = s->pitch;
112
113 BEGIN_NV04(push, NV20_3D(ZETA_OFFSET), 1);
114 PUSH_MTHDl(push, NV20_3D(ZETA_OFFSET), BUFCTX_FB,
115 s->bo, 0, bo_flags);
116
117 if (context_chipset(ctx) >= 0x25)
118 setup_hierz_buffer(ctx);
119 } else {
120 rt_format |= get_rt_format(MESA_FORMAT_S8_UINT_Z24_UNORM);
121 zeta_pitch = rt_pitch;
122 }
123
124 BEGIN_NV04(push, NV20_3D(RT_FORMAT), 2);
125 PUSH_DATA (push, rt_format);
126 PUSH_DATA (push, zeta_pitch << 16 | rt_pitch);
127
128 /* Recompute the viewport/scissor state. */
129 context_dirty(ctx, VIEWPORT);
130 context_dirty(ctx, SCISSOR);
131 context_dirty(ctx, DEPTH);
132 }
133
134 void
nv20_emit_viewport(struct gl_context * ctx,int emit)135 nv20_emit_viewport(struct gl_context *ctx, int emit)
136 {
137 struct nouveau_pushbuf *push = context_push(ctx);
138 struct gl_framebuffer *fb = ctx->DrawBuffer;
139 float a[4] = {};
140
141 get_viewport_translate(ctx, a);
142
143 BEGIN_NV04(push, NV20_3D(VIEWPORT_TRANSLATE_X), 4);
144 PUSH_DATAp(push, a, 4);
145
146 BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_HORIZ(0)), 1);
147 PUSH_DATA (push, (fb->Width - 1) << 16);
148 BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_VERT(0)), 1);
149 PUSH_DATA (push, (fb->Height - 1) << 16);
150
151 context_dirty(ctx, PROJECTION);
152 }
153