/* * Copyright 2009 Marek Olšák * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * on the rights to use, copy, modify, merge, publish, distribute, sub * license, and/or sell copies of the Software, and to permit persons to whom * the Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "r300_context.h" #include "r300_emit.h" #include "r300_hyperz.h" #include "r300_texture.h" #include "r300_winsys.h" #include "util/u_format.h" #include "util/u_pack_color.h" enum r300_blitter_op /* bitmask */ { R300_CLEAR = 1, R300_CLEAR_SURFACE = 2, R300_COPY = 4 }; static void r300_blitter_begin(struct r300_context* r300, enum r300_blitter_op op) { if (r300->query_current) { r300->blitter_saved_query = r300->query_current; r300_stop_query(r300); } /* Yeah we have to save all those states to ensure the blitter operation * is really transparent. The states will be restored by the blitter once * copying is done. */ util_blitter_save_blend(r300->blitter, r300->blend_state.state); util_blitter_save_depth_stencil_alpha(r300->blitter, r300->dsa_state.state); util_blitter_save_stencil_ref(r300->blitter, &(r300->stencil_ref)); util_blitter_save_rasterizer(r300->blitter, r300->rs_state.state); util_blitter_save_fragment_shader(r300->blitter, r300->fs.state); util_blitter_save_vertex_shader(r300->blitter, r300->vs_state.state); util_blitter_save_viewport(r300->blitter, &r300->viewport); util_blitter_save_clip(r300->blitter, (struct pipe_clip_state*)r300->clip_state.state); util_blitter_save_vertex_elements(r300->blitter, r300->velems); util_blitter_save_vertex_buffers(r300->blitter, r300->vertex_buffer_count, r300->vertex_buffer); if (op & (R300_CLEAR_SURFACE | R300_COPY)) util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state); if (op & R300_COPY) { struct r300_textures_state* state = (struct r300_textures_state*)r300->textures_state.state; util_blitter_save_fragment_sampler_states( r300->blitter, state->sampler_state_count, (void**)state->sampler_states); util_blitter_save_fragment_sampler_views( r300->blitter, state->sampler_view_count, (struct pipe_sampler_view**)state->sampler_views); } } static void r300_blitter_end(struct r300_context *r300) { if (r300->blitter_saved_query) { r300_resume_query(r300, r300->blitter_saved_query); r300->blitter_saved_query = NULL; } } static uint32_t r300_depth_clear_cb_value(enum pipe_format format, const float* rgba) { union util_color uc; util_pack_color(rgba, format, &uc); if (util_format_get_blocksizebits(format) == 32) return uc.ui; else return uc.us | (uc.us << 16); } static boolean r300_cbzb_clear_allowed(struct r300_context *r300, unsigned clear_buffers) { struct pipe_framebuffer_state *fb = (struct pipe_framebuffer_state*)r300->fb_state.state; /* Only color clear allowed, and only one colorbuffer. */ if (clear_buffers != PIPE_CLEAR_COLOR || fb->nr_cbufs != 1) return FALSE; return r300_surface(fb->cbufs[0])->cbzb_allowed; } static uint32_t r300_depth_clear_value(enum pipe_format format, double depth, unsigned stencil) { switch (format) { case PIPE_FORMAT_Z16_UNORM: case PIPE_FORMAT_X8Z24_UNORM: return util_pack_z(format, depth); case PIPE_FORMAT_S8_USCALED_Z24_UNORM: return util_pack_z_stencil(format, depth, stencil); default: assert(0); return 0; } } /* Clear currently bound buffers. */ static void r300_clear(struct pipe_context* pipe, unsigned buffers, const float* rgba, double depth, unsigned stencil) { /* My notes about fastfill: * * 1) Only the zbuffer is cleared. * * 2) The zbuffer must be micro-tiled and whole microtiles must be * written. If microtiling is disabled, it locks up. * * 3) There is Z Mask RAM which contains a compressed zbuffer and * it interacts with fastfill. We should figure out how to use it * to get more performance. * This is what we know about the Z Mask: * * Each dword of the Z Mask contains compression information * for 16 4x4 pixel blocks, that is 2 bits for each block. * On chips with 2 Z pipes, every other dword maps to a different * pipe. * * 4) ZB_DEPTHCLEARVALUE is used to clear the zbuffer and the Z Mask must * be equal to 0. (clear the Z Mask RAM with zeros) * * 5) For 16-bit zbuffer, compression causes a hung with one or * two samples and should not be used. * * 6) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears * to avoid needless decompression. * * 7) Fastfill must not be used if reading of compressed Z data is disabled * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE), * i.e. it cannot be used to compress the zbuffer. * * 8) ZB_CB_CLEAR does not interact with fastfill in any way. * * - Marek */ struct r300_context* r300 = r300_context(pipe); struct pipe_framebuffer_state *fb = (struct pipe_framebuffer_state*)r300->fb_state.state; struct r300_hyperz_state *hyperz = (struct r300_hyperz_state*)r300->hyperz_state.state; struct r300_texture *zstex = fb->zsbuf ? r300_texture(fb->zsbuf->texture) : NULL; uint32_t width = fb->width; uint32_t height = fb->height; boolean can_hyperz = r300->rws->get_value(r300->rws, R300_CAN_HYPERZ); uint32_t hyperz_dcv = hyperz->zb_depthclearvalue; /* Enable fast Z clear. * The zbuffer must be in micro-tiled mode, otherwise it locks up. */ if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && can_hyperz) { hyperz_dcv = hyperz->zb_depthclearvalue = r300_depth_clear_value(fb->zsbuf->format, depth, stencil); r300_mark_fb_state_dirty(r300, R300_CHANGED_ZCLEAR_FLAG); if (zstex->zmask_mem[fb->zsbuf->u.tex.level]) { r300_mark_atom_dirty(r300, &r300->zmask_clear); buffers &= ~PIPE_CLEAR_DEPTHSTENCIL; } if (zstex->hiz_mem[fb->zsbuf->u.tex.level]) r300_mark_atom_dirty(r300, &r300->hiz_clear); } /* Enable CBZB clear. */ if (r300_cbzb_clear_allowed(r300, buffers)) { struct r300_surface *surf = r300_surface(fb->cbufs[0]); hyperz->zb_depthclearvalue = r300_depth_clear_cb_value(surf->base.format, rgba); width = surf->cbzb_width; height = surf->cbzb_height; r300->cbzb_clear = TRUE; r300_mark_fb_state_dirty(r300, R300_CHANGED_CBZB_FLAG); } /* Clear. */ if (buffers) { /* Clear using the blitter. */ r300_blitter_begin(r300, R300_CLEAR); util_blitter_clear(r300->blitter, width, height, fb->nr_cbufs, buffers, rgba, depth, stencil); r300_blitter_end(r300); } else if (r300->zmask_clear.dirty) { /* Just clear zmask and hiz now, this does not use a standard draw * procedure. */ unsigned dwords; /* Calculate zmask_clear and hiz_clear atom sizes. */ r300_update_hyperz_state(r300); dwords = r300->zmask_clear.size + (r300->hiz_clear.dirty ? r300->hiz_clear.size : 0) + r300_get_num_cs_end_dwords(r300); /* Reserve CS space. */ if (dwords > (R300_MAX_CMDBUF_DWORDS - r300->cs->cdw)) { r300->context.flush(&r300->context, 0, NULL); } /* Emit clear packets. */ r300_emit_zmask_clear(r300, r300->zmask_clear.size, r300->zmask_clear.state); r300->zmask_clear.dirty = FALSE; if (r300->hiz_clear.dirty) { r300_emit_hiz_clear(r300, r300->hiz_clear.size, r300->hiz_clear.state); r300->hiz_clear.dirty = FALSE; } } else { assert(0); } /* Disable CBZB clear. */ if (r300->cbzb_clear) { r300->cbzb_clear = FALSE; hyperz->zb_depthclearvalue = hyperz_dcv; r300_mark_fb_state_dirty(r300, R300_CHANGED_CBZB_FLAG); } /* Enable fastfill and/or hiz. * * If we cleared zmask/hiz, it's in use now. The Hyper-Z state update * looks if zmask/hiz is in use and enables fastfill accordingly. */ if (zstex && (zstex->zmask_in_use[fb->zsbuf->u.tex.level] || zstex->hiz_in_use[fb->zsbuf->u.tex.level])) { r300_mark_atom_dirty(r300, &r300->hyperz_state); } } /* Clear a region of a color surface to a constant value. */ static void r300_clear_render_target(struct pipe_context *pipe, struct pipe_surface *dst, const float *rgba, unsigned dstx, unsigned dsty, unsigned width, unsigned height) { struct r300_context *r300 = r300_context(pipe); r300_blitter_begin(r300, R300_CLEAR_SURFACE); util_blitter_clear_render_target(r300->blitter, dst, rgba, dstx, dsty, width, height); r300_blitter_end(r300); } /* Clear a region of a depth stencil surface. */ static void r300_clear_depth_stencil(struct pipe_context *pipe, struct pipe_surface *dst, unsigned clear_flags, double depth, unsigned stencil, unsigned dstx, unsigned dsty, unsigned width, unsigned height) { struct r300_context *r300 = r300_context(pipe); r300_blitter_begin(r300, R300_CLEAR_SURFACE); util_blitter_clear_depth_stencil(r300->blitter, dst, clear_flags, depth, stencil, dstx, dsty, width, height); r300_blitter_end(r300); } /* Flush a depth stencil buffer. */ void r300_flush_depth_stencil(struct pipe_context *pipe, struct pipe_resource *dst, unsigned level, unsigned layer) { struct r300_context *r300 = r300_context(pipe); struct pipe_surface *dstsurf, surf_tmpl; struct r300_texture *tex = r300_texture(dst); if (!tex->zmask_mem[level]) return; if (!tex->zmask_in_use[level]) return; surf_tmpl.format = dst->format; surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL; surf_tmpl.u.tex.level = level; surf_tmpl.u.tex.first_layer = layer; surf_tmpl.u.tex.last_layer = layer; dstsurf = pipe->create_surface(pipe, dst, &surf_tmpl); r300->z_decomp_rd = TRUE; r300_blitter_begin(r300, R300_CLEAR_SURFACE); util_blitter_flush_depth_stencil(r300->blitter, dstsurf); r300_blitter_end(r300); r300->z_decomp_rd = FALSE; tex->zmask_in_use[level] = FALSE; } /* Copy a block of pixels from one surface to another using HW. */ static void r300_hw_copy_region(struct pipe_context* pipe, struct pipe_resource *dst, unsigned dst_level, unsigned dstx, unsigned dsty, unsigned dstz, struct pipe_resource *src, unsigned src_level, const struct pipe_box *src_box) { struct r300_context* r300 = r300_context(pipe); r300_blitter_begin(r300, R300_COPY); /* Do a copy */ util_blitter_copy_region(r300->blitter, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box, TRUE); r300_blitter_end(r300); } /* Copy a block of pixels from one surface to another. */ static void r300_resource_copy_region(struct pipe_context *pipe, struct pipe_resource *dst, unsigned dst_level, unsigned dstx, unsigned dsty, unsigned dstz, struct pipe_resource *src, unsigned src_level, const struct pipe_box *src_box) { enum pipe_format old_format = dst->format; enum pipe_format new_format = old_format; boolean is_depth; if (!pipe->screen->is_format_supported(pipe->screen, old_format, src->target, src->nr_samples, PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW, 0) && util_format_is_plain(old_format)) { switch (util_format_get_blocksize(old_format)) { case 1: new_format = PIPE_FORMAT_I8_UNORM; break; case 2: new_format = PIPE_FORMAT_B4G4R4A4_UNORM; break; case 4: new_format = PIPE_FORMAT_B8G8R8A8_UNORM; break; case 8: new_format = PIPE_FORMAT_R16G16B16A16_UNORM; break; default: debug_printf("r300: surface_copy: Unhandled format: %s. Falling back to software.\n" "r300: surface_copy: Software fallback doesn't work for tiled textures.\n", util_format_short_name(old_format)); } } is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0; if (is_depth) { r300_flush_depth_stencil(pipe, src, src_level, src_box->z); } if (old_format != new_format) { r300_texture_reinterpret_format(pipe->screen, dst, new_format); r300_texture_reinterpret_format(pipe->screen, src, new_format); } r300_hw_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, src_box); if (old_format != new_format) { r300_texture_reinterpret_format(pipe->screen, dst, old_format); r300_texture_reinterpret_format(pipe->screen, src, old_format); } } void r300_init_blit_functions(struct r300_context *r300) { r300->context.clear = r300_clear; r300->context.clear_render_target = r300_clear_render_target; r300->context.clear_depth_stencil = r300_clear_depth_stencil; r300->context.resource_copy_region = r300_resource_copy_region; }