1 /************************************************************************** 2 * 3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 #include "i915_surface.h" 29 #include "i915_resource.h" 30 #include "i915_state.h" 31 #include "i915_blit.h" 32 #include "i915_reg.h" 33 #include "i915_screen.h" 34 #include "pipe/p_defines.h" 35 #include "util/u_inlines.h" 36 #include "util/u_math.h" 37 #include "util/u_format.h" 38 #include "util/u_memory.h" 39 #include "util/u_pack_color.h" 40 #include "util/u_surface.h" 41 42 /* 43 * surface functions using the render engine 44 */ 45 46 static void 47 i915_surface_copy_render(struct pipe_context *pipe, 48 struct pipe_resource *dst, unsigned dst_level, 49 unsigned dstx, unsigned dsty, unsigned dstz, 50 struct pipe_resource *src, unsigned src_level, 51 const struct pipe_box *src_box) 52 { 53 struct i915_context *i915 = i915_context(pipe); 54 55 /* Fallback for buffers. */ 56 if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) { 57 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, 58 src, src_level, src_box); 59 return; 60 } 61 62 if (!util_blitter_is_copy_supported(i915->blitter, dst, src, 63 PIPE_MASK_RGBAZS)) { 64 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, 65 src, src_level, src_box); 66 return; 67 } 68 69 util_blitter_save_blend(i915->blitter, (void *)i915->blend); 70 util_blitter_save_depth_stencil_alpha(i915->blitter, (void *)i915->depth_stencil); 71 util_blitter_save_stencil_ref(i915->blitter, &i915->stencil_ref); 72 util_blitter_save_rasterizer(i915->blitter, (void *)i915->rasterizer); 73 util_blitter_save_fragment_shader(i915->blitter, i915->saved_fs); 74 util_blitter_save_vertex_shader(i915->blitter, i915->saved_vs); 75 util_blitter_save_viewport(i915->blitter, &i915->viewport); 76 util_blitter_save_vertex_elements(i915->blitter, i915->saved_velems); 77 util_blitter_save_vertex_buffers(i915->blitter, i915->saved_nr_vertex_buffers, 78 i915->saved_vertex_buffers); 79 80 util_blitter_save_framebuffer(i915->blitter, &i915->framebuffer); 81 82 util_blitter_save_fragment_sampler_states(i915->blitter, 83 i915->saved_nr_samplers, 84 i915->saved_samplers); 85 util_blitter_save_fragment_sampler_views(i915->blitter, 86 i915->saved_nr_sampler_views, 87 i915->saved_sampler_views); 88 89 util_blitter_copy_texture(i915->blitter, dst, dst_level, ~0, dstx, dsty, dstz, 90 src, src_level, 0, src_box); 91 } 92 93 static void 94 i915_clear_render_target_render(struct pipe_context *pipe, 95 struct pipe_surface *dst, 96 const union pipe_color_union *color, 97 unsigned dstx, unsigned dsty, 98 unsigned width, unsigned height) 99 { 100 struct i915_context *i915 = i915_context(pipe); 101 struct pipe_framebuffer_state fb_state; 102 103 util_blitter_save_framebuffer(i915->blitter, &i915->framebuffer); 104 105 fb_state.width = dst->width; 106 fb_state.height = dst->height; 107 fb_state.nr_cbufs = 1; 108 fb_state.cbufs[0] = dst; 109 fb_state.zsbuf = NULL; 110 pipe->set_framebuffer_state(pipe, &fb_state); 111 112 if (i915->dirty) 113 i915_update_derived(i915); 114 115 i915_clear_emit(pipe, PIPE_CLEAR_COLOR, color, 0.0, 0x0, 116 dstx, dsty, width, height); 117 118 pipe->set_framebuffer_state(pipe, &i915->blitter->saved_fb_state); 119 util_unreference_framebuffer_state(&i915->blitter->saved_fb_state); 120 i915->blitter->saved_fb_state.nr_cbufs = ~0; 121 } 122 123 static void 124 i915_clear_depth_stencil_render(struct pipe_context *pipe, 125 struct pipe_surface *dst, 126 unsigned clear_flags, 127 double depth, 128 unsigned stencil, 129 unsigned dstx, unsigned dsty, 130 unsigned width, unsigned height) 131 { 132 struct i915_context *i915 = i915_context(pipe); 133 struct pipe_framebuffer_state fb_state; 134 135 util_blitter_save_framebuffer(i915->blitter, &i915->framebuffer); 136 137 fb_state.width = dst->width; 138 fb_state.height = dst->height; 139 fb_state.nr_cbufs = 0; 140 fb_state.zsbuf = dst; 141 pipe->set_framebuffer_state(pipe, &fb_state); 142 143 if (i915->dirty) 144 i915_update_derived(i915); 145 146 i915_clear_emit(pipe, clear_flags & PIPE_CLEAR_DEPTHSTENCIL, 147 NULL, depth, stencil, 148 dstx, dsty, width, height); 149 150 pipe->set_framebuffer_state(pipe, &i915->blitter->saved_fb_state); 151 util_unreference_framebuffer_state(&i915->blitter->saved_fb_state); 152 i915->blitter->saved_fb_state.nr_cbufs = ~0; 153 } 154 155 /* 156 * surface functions using the blitter 157 */ 158 159 /* Assumes all values are within bounds -- no checking at this level - 160 * do it higher up if required. 161 */ 162 static void 163 i915_surface_copy_blitter(struct pipe_context *pipe, 164 struct pipe_resource *dst, unsigned dst_level, 165 unsigned dstx, unsigned dsty, unsigned dstz, 166 struct pipe_resource *src, unsigned src_level, 167 const struct pipe_box *src_box) 168 { 169 struct i915_texture *dst_tex = i915_texture(dst); 170 struct i915_texture *src_tex = i915_texture(src); 171 struct pipe_resource *dpt = &dst_tex->b.b; 172 struct pipe_resource *spt = &src_tex->b.b; 173 unsigned dst_offset, src_offset; /* in bytes */ 174 175 /* Fallback for buffers. */ 176 if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) { 177 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, 178 src, src_level, src_box); 179 return; 180 } 181 182 /* XXX cannot copy 3d regions at this time */ 183 assert(src_box->depth == 1); 184 if (dst->target != PIPE_TEXTURE_CUBE && 185 dst->target != PIPE_TEXTURE_3D) 186 assert(dstz == 0); 187 dst_offset = i915_texture_offset(dst_tex, dst_level, dstz); 188 189 if (src->target != PIPE_TEXTURE_CUBE && 190 src->target != PIPE_TEXTURE_3D) 191 assert(src_box->z == 0); 192 src_offset = i915_texture_offset(src_tex, src_level, src_box->z); 193 194 assert( util_format_get_blocksize(dpt->format) == util_format_get_blocksize(spt->format) ); 195 assert( util_format_get_blockwidth(dpt->format) == util_format_get_blockwidth(spt->format) ); 196 assert( util_format_get_blockheight(dpt->format) == util_format_get_blockheight(spt->format) ); 197 assert( util_format_get_blockwidth(dpt->format) == 1 ); 198 assert( util_format_get_blockheight(dpt->format) == 1 ); 199 200 i915_copy_blit( i915_context(pipe), 201 util_format_get_blocksize(dpt->format), 202 (unsigned short) src_tex->stride, src_tex->buffer, src_offset, 203 (unsigned short) dst_tex->stride, dst_tex->buffer, dst_offset, 204 (short) src_box->x, (short) src_box->y, (short) dstx, (short) dsty, 205 (short) src_box->width, (short) src_box->height ); 206 } 207 208 static void 209 i915_clear_render_target_blitter(struct pipe_context *pipe, 210 struct pipe_surface *dst, 211 const union pipe_color_union *color, 212 unsigned dstx, unsigned dsty, 213 unsigned width, unsigned height) 214 { 215 struct i915_texture *tex = i915_texture(dst->texture); 216 struct pipe_resource *pt = &tex->b.b; 217 union util_color uc; 218 unsigned offset = i915_texture_offset(tex, dst->u.tex.level, dst->u.tex.first_layer); 219 220 assert(util_format_get_blockwidth(pt->format) == 1); 221 assert(util_format_get_blockheight(pt->format) == 1); 222 223 util_pack_color(color->f, dst->format, &uc); 224 i915_fill_blit( i915_context(pipe), 225 util_format_get_blocksize(pt->format), 226 XY_COLOR_BLT_WRITE_ALPHA | XY_COLOR_BLT_WRITE_RGB, 227 (unsigned short) tex->stride, 228 tex->buffer, offset, 229 (short) dstx, (short) dsty, 230 (short) width, (short) height, 231 uc.ui ); 232 } 233 234 static void 235 i915_clear_depth_stencil_blitter(struct pipe_context *pipe, 236 struct pipe_surface *dst, 237 unsigned clear_flags, 238 double depth, 239 unsigned stencil, 240 unsigned dstx, unsigned dsty, 241 unsigned width, unsigned height) 242 { 243 struct i915_texture *tex = i915_texture(dst->texture); 244 struct pipe_resource *pt = &tex->b.b; 245 unsigned packedds; 246 unsigned mask = 0; 247 unsigned offset = i915_texture_offset(tex, dst->u.tex.level, dst->u.tex.first_layer); 248 249 assert(util_format_get_blockwidth(pt->format) == 1); 250 assert(util_format_get_blockheight(pt->format) == 1); 251 252 packedds = util_pack_z_stencil(dst->format, depth, stencil); 253 254 if (clear_flags & PIPE_CLEAR_DEPTH) 255 mask |= XY_COLOR_BLT_WRITE_RGB; 256 /* XXX presumably this does read-modify-write 257 (otherwise this won't work anyway). Hence will only want to 258 do it if really have stencil and it isn't cleared */ 259 if ((clear_flags & PIPE_CLEAR_STENCIL) || 260 (dst->format != PIPE_FORMAT_Z24_UNORM_S8_UINT)) 261 mask |= XY_COLOR_BLT_WRITE_ALPHA; 262 263 i915_fill_blit( i915_context(pipe), 264 util_format_get_blocksize(pt->format), 265 mask, 266 (unsigned short) tex->stride, 267 tex->buffer, offset, 268 (short) dstx, (short) dsty, 269 (short) width, (short) height, 270 packedds ); 271 } 272 273 /* 274 * Screen surface functions 275 */ 276 277 278 static struct pipe_surface * 279 i915_create_surface(struct pipe_context *ctx, 280 struct pipe_resource *pt, 281 const struct pipe_surface *surf_tmpl) 282 { 283 struct pipe_surface *ps; 284 285 assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer); 286 if (pt->target != PIPE_TEXTURE_CUBE && 287 pt->target != PIPE_TEXTURE_3D) 288 assert(surf_tmpl->u.tex.first_layer == 0); 289 290 ps = CALLOC_STRUCT(pipe_surface); 291 if (ps) { 292 /* could subclass pipe_surface and store offset as it used to do */ 293 pipe_reference_init(&ps->reference, 1); 294 pipe_resource_reference(&ps->texture, pt); 295 ps->format = surf_tmpl->format; 296 ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level); 297 ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level); 298 ps->u.tex.level = surf_tmpl->u.tex.level; 299 ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer; 300 ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer; 301 ps->usage = surf_tmpl->usage; 302 ps->context = ctx; 303 } 304 return ps; 305 } 306 307 static void 308 i915_surface_destroy(struct pipe_context *ctx, 309 struct pipe_surface *surf) 310 { 311 pipe_resource_reference(&surf->texture, NULL); 312 FREE(surf); 313 } 314 315 316 void 317 i915_init_surface_functions(struct i915_context *i915) 318 { 319 if (i915_screen(i915->base.screen)->debug.use_blitter) { 320 i915->base.resource_copy_region = i915_surface_copy_blitter; 321 i915->base.clear_render_target = i915_clear_render_target_blitter; 322 i915->base.clear_depth_stencil = i915_clear_depth_stencil_blitter; 323 } else { 324 i915->base.resource_copy_region = i915_surface_copy_render; 325 i915->base.clear_render_target = i915_clear_render_target_render; 326 i915->base.clear_depth_stencil = i915_clear_depth_stencil_render; 327 } 328 i915->base.create_surface = i915_create_surface; 329 i915->base.surface_destroy = i915_surface_destroy; 330 } 331
