src/mesa/drivers/dri/nouveau/nv04_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 "nouveau_class.h"
  32 #include "nv04_driver.h"
  33
  34 static inline unsigned
  35 get_rt_format(gl_format format)
  36 {
  37         switch (format) {
  38         case MESA_FORMAT_XRGB8888:
  39                 return 0x05;
  40         case MESA_FORMAT_ARGB8888:
  41                 return 0x08;
  42         case MESA_FORMAT_RGB565:
  43                 return 0x03;
  44         default:
  45                 assert(0);
  46         }
  47 }
  48
  49 void
  50 nv04_emit_framebuffer(GLcontext *ctx, int emit)
  51 {
  52         struct nouveau_channel *chan = context_chan(ctx);
  53         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
  54         struct nouveau_grobj *surf3d = hw->surf3d;
  55         struct nouveau_bo_context *bctx = context_bctx(ctx, FRAMEBUFFER);
  56         struct gl_framebuffer *fb = ctx->DrawBuffer;
  57         struct nouveau_surface *s;
  58         uint32_t rt_format = NV04_CONTEXT_SURFACES_3D_FORMAT_TYPE_PITCH;
  59         uint32_t rt_pitch = 0, zeta_pitch = 0;
  60         unsigned bo_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR;
  61
  62         if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT)
  63                 return;
  64
  65         /* Render target */
  66         if (fb->_ColorDrawBuffers[0]) {
  67                 s = &to_nouveau_renderbuffer(
  68                         fb->_ColorDrawBuffers[0])->surface;
  69
  70                 rt_format |= get_rt_format(s->format);
  71                 zeta_pitch = rt_pitch = s->pitch;
  72
  73                 nouveau_bo_markl(bctx, surf3d,
  74                                  NV04_CONTEXT_SURFACES_3D_OFFSET_COLOR,
  75                                  s->bo, 0, bo_flags);
  76         }
  77
  78         /* depth/stencil */
  79         if (fb->_DepthBuffer) {
  80                 s = &to_nouveau_renderbuffer(
  81                         fb->_DepthBuffer->Wrapped)->surface;
  82
  83                 zeta_pitch = s->pitch;
  84
  85                 nouveau_bo_markl(bctx, surf3d,
  86                                  NV04_CONTEXT_SURFACES_3D_OFFSET_ZETA,
  87                                  s->bo, 0, bo_flags);
  88         }
  89
  90         BEGIN_RING(chan, surf3d, NV04_CONTEXT_SURFACES_3D_FORMAT, 1);
  91         OUT_RING(chan, rt_format);
  92         BEGIN_RING(chan, surf3d, NV04_CONTEXT_SURFACES_3D_PITCH, 1);
  93         OUT_RING(chan, zeta_pitch << 16 | rt_pitch);
  94
  95         /* Recompute the scissor state. */
  96         context_dirty(ctx, SCISSOR);
  97 }
  98
  99 void
 100 nv04_emit_scissor(GLcontext *ctx, int emit)
 101 {
 102         struct nouveau_channel *chan = context_chan(ctx);
 103         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
 104         struct nouveau_grobj *surf3d = hw->surf3d;
 105         int x, y, w, h;
 106
 107         get_scissors(ctx->DrawBuffer, &x, &y, &w, &h);
 108
 109         BEGIN_RING(chan, surf3d, NV04_CONTEXT_SURFACES_3D_CLIP_HORIZONTAL, 2);
 110         OUT_RING(chan, w << 16 | x);
 111         OUT_RING(chan, h << 16 | y);
 112
 113         /* Messing with surf3d invalidates some engine state. */
 114         context_dirty(ctx, CONTROL);
 115         context_dirty(ctx, BLEND);
 116 }