src/mesa/drivers/dri/nouveau/nv10_state_fb.c

   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
  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
  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
  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
 159 nv10_emit_render_mode(struct gl_context *ctx, int emit)
 160 {
 161 }
 162
 163 void
 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
 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
 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 }