src/mesa/drivers/dri/nouveau/nv20_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_gldefs.h"
  31 #include "nouveau_util.h"
  32 #include "nv20_3d.xml.h"
  33 #include "nv20_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 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
  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
  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
 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 }