1 /* 2 * Copyright 2012 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 * 24 */ 25 26 #include "pipe/p_defines.h" 27 #include "util/u_pack_color.h" 28 29 #include "nouveau/nouveau_gldefs.h" 30 #include "nouveau/nv_object.xml.h" 31 #include "nv30-40_3d.xml.h" 32 #include "nv30_context.h" 33 #include "nv30_format.h" 34 35 static INLINE uint32_t 36 pack_rgba(enum pipe_format format, const float *rgba) 37 { 38 union util_color uc; 39 util_pack_color(rgba, format, &uc); 40 return uc.ui; 41 } 42 43 static INLINE uint32_t 44 pack_zeta(enum pipe_format format, double depth, unsigned stencil) 45 { 46 uint32_t zuint = (uint32_t)(depth * 4294967295.0); 47 if (format != PIPE_FORMAT_Z16_UNORM) 48 return (zuint & 0xffffff00) | (stencil & 0xff); 49 return zuint >> 16; 50 } 51 52 static void 53 nv30_clear(struct pipe_context *pipe, unsigned buffers, 54 const union pipe_color_union *color, double depth, unsigned stencil) 55 { 56 struct nv30_context *nv30 = nv30_context(pipe); 57 struct nouveau_pushbuf *push = nv30->base.pushbuf; 58 struct pipe_framebuffer_state *fb = &nv30->framebuffer; 59 uint32_t colr = 0, zeta = 0, mode = 0; 60 61 if (!nv30_state_validate(nv30, TRUE)) 62 return; 63 64 if (buffers & PIPE_CLEAR_COLOR && fb->nr_cbufs) { 65 colr = pack_rgba(fb->cbufs[0]->format, color->f); 66 mode |= NV30_3D_CLEAR_BUFFERS_COLOR_R | 67 NV30_3D_CLEAR_BUFFERS_COLOR_G | 68 NV30_3D_CLEAR_BUFFERS_COLOR_B | 69 NV30_3D_CLEAR_BUFFERS_COLOR_A; 70 } 71 72 if (fb->zsbuf) { 73 zeta = pack_zeta(fb->zsbuf->format, depth, stencil); 74 if (buffers & PIPE_CLEAR_DEPTH) 75 mode |= NV30_3D_CLEAR_BUFFERS_DEPTH; 76 if (buffers & PIPE_CLEAR_STENCIL) 77 mode |= NV30_3D_CLEAR_BUFFERS_STENCIL; 78 } 79 80 /*XXX: wtf? fixes clears sometimes not clearing on nv3x... */ 81 if (nv30->screen->eng3d->oclass < NV40_3D_CLASS) { 82 BEGIN_NV04(push, NV30_3D(CLEAR_DEPTH_VALUE), 3); 83 PUSH_DATA (push, zeta); 84 PUSH_DATA (push, colr); 85 PUSH_DATA (push, mode); 86 } 87 88 BEGIN_NV04(push, NV30_3D(CLEAR_DEPTH_VALUE), 3); 89 PUSH_DATA (push, zeta); 90 PUSH_DATA (push, colr); 91 PUSH_DATA (push, mode); 92 93 nv30_state_release(nv30); 94 } 95 96 static void 97 nv30_clear_render_target(struct pipe_context *pipe, struct pipe_surface *ps, 98 const union pipe_color_union *color, 99 unsigned x, unsigned y, unsigned w, unsigned h) 100 { 101 struct nv30_context *nv30 = nv30_context(pipe); 102 struct nv30_surface *sf = nv30_surface(ps); 103 struct nv30_miptree *mt = nv30_miptree(ps->texture); 104 struct nouveau_pushbuf *push = nv30->base.pushbuf; 105 struct nouveau_object *eng3d = nv30->screen->eng3d; 106 struct nouveau_pushbuf_refn refn; 107 uint32_t rt_format; 108 109 rt_format = nv30_format(pipe->screen, ps->format)->hw; 110 if (util_format_get_blocksize(ps->format) == 4) 111 rt_format |= NV30_3D_RT_FORMAT_ZETA_Z24S8; 112 else 113 rt_format |= NV30_3D_RT_FORMAT_ZETA_Z16; 114 115 if (nv30_miptree(ps->texture)->swizzled) { 116 rt_format |= NV30_3D_RT_FORMAT_TYPE_SWIZZLED; 117 rt_format |= util_logbase2(sf->width) << 16; 118 rt_format |= util_logbase2(sf->height) << 24; 119 } else { 120 rt_format |= NV30_3D_RT_FORMAT_TYPE_LINEAR; 121 } 122 123 refn.bo = mt->base.bo; 124 refn.flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_WR; 125 if (nouveau_pushbuf_space(push, 16, 1, 0) || 126 nouveau_pushbuf_refn (push, &refn, 1)) 127 return; 128 129 BEGIN_NV04(push, NV30_3D(RT_ENABLE), 1); 130 PUSH_DATA (push, NV30_3D_RT_ENABLE_COLOR0); 131 BEGIN_NV04(push, NV30_3D(RT_HORIZ), 3); 132 PUSH_DATA (push, sf->width << 16); 133 PUSH_DATA (push, sf->height << 16); 134 PUSH_DATA (push, rt_format); 135 BEGIN_NV04(push, NV30_3D(COLOR0_PITCH), 2); 136 if (eng3d->oclass < NV40_3D_CLASS) 137 PUSH_DATA (push, (sf->pitch << 16) | sf->pitch); 138 else 139 PUSH_DATA (push, sf->pitch); 140 PUSH_RELOC(push, mt->base.bo, sf->offset, NOUVEAU_BO_LOW, 0, 0); 141 BEGIN_NV04(push, NV30_3D(SCISSOR_HORIZ), 2); 142 PUSH_DATA (push, (w << 16) | x); 143 PUSH_DATA (push, (h << 16) | y); 144 145 BEGIN_NV04(push, NV30_3D(CLEAR_COLOR_VALUE), 2); 146 PUSH_DATA (push, pack_rgba(ps->format, color->f)); 147 PUSH_DATA (push, NV30_3D_CLEAR_BUFFERS_COLOR_R | 148 NV30_3D_CLEAR_BUFFERS_COLOR_G | 149 NV30_3D_CLEAR_BUFFERS_COLOR_B | 150 NV30_3D_CLEAR_BUFFERS_COLOR_A); 151 152 nv30->dirty |= NV30_NEW_FRAMEBUFFER | NV30_NEW_SCISSOR; 153 } 154 155 static void 156 nv30_clear_depth_stencil(struct pipe_context *pipe, struct pipe_surface *ps, 157 unsigned buffers, double depth, unsigned stencil, 158 unsigned x, unsigned y, unsigned w, unsigned h) 159 { 160 struct nv30_context *nv30 = nv30_context(pipe); 161 struct nv30_surface *sf = nv30_surface(ps); 162 struct nv30_miptree *mt = nv30_miptree(ps->texture); 163 struct nouveau_pushbuf *push = nv30->base.pushbuf; 164 struct nouveau_object *eng3d = nv30->screen->eng3d; 165 struct nouveau_pushbuf_refn refn; 166 uint32_t rt_format, mode = 0; 167 168 rt_format = nv30_format(pipe->screen, ps->format)->hw; 169 if (util_format_get_blocksize(ps->format) == 4) 170 rt_format |= NV30_3D_RT_FORMAT_COLOR_A8R8G8B8; 171 else 172 rt_format |= NV30_3D_RT_FORMAT_COLOR_R5G6B5; 173 174 if (nv30_miptree(ps->texture)->swizzled) { 175 rt_format |= NV30_3D_RT_FORMAT_TYPE_SWIZZLED; 176 rt_format |= util_logbase2(sf->width) << 16; 177 rt_format |= util_logbase2(sf->height) << 24; 178 } else { 179 rt_format |= NV30_3D_RT_FORMAT_TYPE_LINEAR; 180 } 181 182 if (buffers & PIPE_CLEAR_DEPTH) 183 mode |= NV30_3D_CLEAR_BUFFERS_DEPTH; 184 if (buffers & PIPE_CLEAR_STENCIL) 185 mode |= NV30_3D_CLEAR_BUFFERS_STENCIL; 186 187 refn.bo = mt->base.bo; 188 refn.flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_WR; 189 if (nouveau_pushbuf_space(push, 32, 1, 0) || 190 nouveau_pushbuf_refn (push, &refn, 1)) 191 return; 192 193 BEGIN_NV04(push, NV30_3D(RT_ENABLE), 1); 194 PUSH_DATA (push, 0); 195 BEGIN_NV04(push, NV30_3D(RT_HORIZ), 3); 196 PUSH_DATA (push, sf->width << 16); 197 PUSH_DATA (push, sf->height << 16); 198 PUSH_DATA (push, rt_format); 199 if (eng3d->oclass < NV40_3D_CLASS) { 200 BEGIN_NV04(push, NV30_3D(COLOR0_PITCH), 1); 201 PUSH_DATA (push, (sf->pitch << 16) | sf->pitch); 202 } else { 203 BEGIN_NV04(push, NV40_3D(ZETA_PITCH), 1); 204 PUSH_DATA (push, sf->pitch); 205 } 206 BEGIN_NV04(push, NV30_3D(ZETA_OFFSET), 1); 207 PUSH_RELOC(push, mt->base.bo, sf->offset, NOUVEAU_BO_LOW, 0, 0); 208 BEGIN_NV04(push, NV30_3D(SCISSOR_HORIZ), 2); 209 PUSH_DATA (push, (w << 16) | x); 210 PUSH_DATA (push, (h << 16) | y); 211 212 BEGIN_NV04(push, NV30_3D(CLEAR_DEPTH_VALUE), 1); 213 PUSH_DATA (push, pack_zeta(ps->format, depth, stencil)); 214 BEGIN_NV04(push, NV30_3D(CLEAR_BUFFERS), 1); 215 PUSH_DATA (push, mode); 216 217 nv30->dirty |= NV30_NEW_FRAMEBUFFER | NV30_NEW_SCISSOR; 218 } 219 220 void 221 nv30_clear_init(struct pipe_context *pipe) 222 { 223 pipe->clear = nv30_clear; 224 pipe->clear_render_target = nv30_clear_render_target; 225 pipe->clear_depth_stencil = nv30_clear_depth_stencil; 226 } 227
