/************************************************************************** * * Copyright 2007 VMware, Inc. * All Rights Reserved. * * 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 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 VMWARE AND/OR ITS 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. * **************************************************************************/ /* Authors: * Brian Paul */ #include "util/u_inlines.h" #include "util/u_memory.h" #include "draw/draw_context.h" #include "lp_context.h" #include "lp_screen.h" #include "lp_state.h" #include "lp_debug.h" #include "state_tracker/sw_winsys.h" static void * llvmpipe_create_sampler_state(struct pipe_context *pipe, const struct pipe_sampler_state *sampler) { struct pipe_sampler_state *state = mem_dup(sampler, sizeof *sampler); if (LP_PERF & PERF_NO_MIP_LINEAR) { if (state->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR) state->min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST; } if (LP_PERF & PERF_NO_MIPMAPS) state->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; if (LP_PERF & PERF_NO_LINEAR) { state->mag_img_filter = PIPE_TEX_FILTER_NEAREST; state->min_img_filter = PIPE_TEX_FILTER_NEAREST; } return state; } static void llvmpipe_bind_sampler_states(struct pipe_context *pipe, unsigned shader, unsigned start, unsigned num, void **samplers) { struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); unsigned i; assert(shader < PIPE_SHADER_TYPES); assert(start + num <= Elements(llvmpipe->samplers[shader])); draw_flush(llvmpipe->draw); /* set the new samplers */ for (i = 0; i < num; i++) { llvmpipe->samplers[shader][start + i] = samplers[i]; } /* find highest non-null samplers[] entry */ { unsigned j = MAX2(llvmpipe->num_samplers[shader], start + num); while (j > 0 && llvmpipe->samplers[shader][j - 1] == NULL) j--; llvmpipe->num_samplers[shader] = j; } if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) { draw_set_samplers(llvmpipe->draw, shader, llvmpipe->samplers[shader], llvmpipe->num_samplers[shader]); } llvmpipe->dirty |= LP_NEW_SAMPLER; } static void llvmpipe_set_sampler_views(struct pipe_context *pipe, unsigned shader, unsigned start, unsigned num, struct pipe_sampler_view **views) { struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); uint i; assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS); assert(shader < PIPE_SHADER_TYPES); assert(start + num <= Elements(llvmpipe->sampler_views[shader])); draw_flush(llvmpipe->draw); /* set the new sampler views */ for (i = 0; i < num; i++) { /* Note: we're using pipe_sampler_view_release() here to work around * a possible crash when the old view belongs to another context that * was already destroyed. */ pipe_sampler_view_release(pipe, &llvmpipe->sampler_views[shader][start + i]); pipe_sampler_view_reference(&llvmpipe->sampler_views[shader][start + i], views[i]); } /* find highest non-null sampler_views[] entry */ { unsigned j = MAX2(llvmpipe->num_sampler_views[shader], start + num); while (j > 0 && llvmpipe->sampler_views[shader][j - 1] == NULL) j--; llvmpipe->num_sampler_views[shader] = j; } if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) { draw_set_sampler_views(llvmpipe->draw, shader, llvmpipe->sampler_views[shader], llvmpipe->num_sampler_views[shader]); } llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW; } static struct pipe_sampler_view * llvmpipe_create_sampler_view(struct pipe_context *pipe, struct pipe_resource *texture, const struct pipe_sampler_view *templ) { struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); /* * XXX we REALLY want to see the correct bind flag here but the OpenGL * state tracker can't guarantee that at least for texture buffer objects. */ if (!(texture->bind & PIPE_BIND_SAMPLER_VIEW)) debug_printf("Illegal sampler view creation without bind flag\n"); if (view) { *view = *templ; view->reference.count = 1; view->texture = NULL; pipe_resource_reference(&view->texture, texture); view->context = pipe; #ifdef DEBUG /* * This is possibly too lenient, but the primary reason is just * to catch state trackers which forget to initialize this, so * it only catches clearly impossible view targets. */ if (view->target != texture->target) { if (view->target == PIPE_TEXTURE_1D) assert(texture->target == PIPE_TEXTURE_1D_ARRAY); else if (view->target == PIPE_TEXTURE_1D_ARRAY) assert(texture->target == PIPE_TEXTURE_1D); else if (view->target == PIPE_TEXTURE_2D) assert(texture->target == PIPE_TEXTURE_2D_ARRAY || texture->target == PIPE_TEXTURE_CUBE || texture->target == PIPE_TEXTURE_CUBE_ARRAY); else if (view->target == PIPE_TEXTURE_2D_ARRAY) assert(texture->target == PIPE_TEXTURE_2D || texture->target == PIPE_TEXTURE_CUBE || texture->target == PIPE_TEXTURE_CUBE_ARRAY); else if (view->target == PIPE_TEXTURE_CUBE) assert(texture->target == PIPE_TEXTURE_CUBE_ARRAY || texture->target == PIPE_TEXTURE_2D_ARRAY); else if (view->target == PIPE_TEXTURE_CUBE_ARRAY) assert(texture->target == PIPE_TEXTURE_CUBE || texture->target == PIPE_TEXTURE_2D_ARRAY); else assert(0); } #endif } return view; } static void llvmpipe_sampler_view_destroy(struct pipe_context *pipe, struct pipe_sampler_view *view) { pipe_resource_reference(&view->texture, NULL); FREE(view); } static void llvmpipe_delete_sampler_state(struct pipe_context *pipe, void *sampler) { FREE( sampler ); } static void prepare_shader_sampling( struct llvmpipe_context *lp, unsigned num, struct pipe_sampler_view **views, unsigned shader_type, struct pipe_resource *mapped_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS]) { unsigned i; uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]; const void *addr; assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS); if (!num) return; for (i = 0; i < PIPE_MAX_SHADER_SAMPLER_VIEWS; i++) { struct pipe_sampler_view *view = i < num ? views[i] : NULL; if (view) { struct pipe_resource *tex = view->texture; struct llvmpipe_resource *lp_tex = llvmpipe_resource(tex); unsigned width0 = tex->width0; unsigned num_layers = tex->depth0; unsigned first_level = 0; unsigned last_level = 0; /* We're referencing the texture's internal data, so save a * reference to it. */ pipe_resource_reference(&mapped_tex[i], tex); if (!lp_tex->dt) { /* regular texture - setup array of mipmap level offsets */ struct pipe_resource *res = view->texture; int j; if (llvmpipe_resource_is_texture(res)) { first_level = view->u.tex.first_level; last_level = view->u.tex.last_level; assert(first_level <= last_level); assert(last_level <= res->last_level); addr = lp_tex->tex_data; for (j = first_level; j <= last_level; j++) { mip_offsets[j] = lp_tex->mip_offsets[j]; row_stride[j] = lp_tex->row_stride[j]; img_stride[j] = lp_tex->img_stride[j]; } if (tex->target == PIPE_TEXTURE_1D_ARRAY || tex->target == PIPE_TEXTURE_2D_ARRAY || tex->target == PIPE_TEXTURE_CUBE || tex->target == PIPE_TEXTURE_CUBE_ARRAY) { num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1; for (j = first_level; j <= last_level; j++) { mip_offsets[j] += view->u.tex.first_layer * lp_tex->img_stride[j]; } if (view->target == PIPE_TEXTURE_CUBE || view->target == PIPE_TEXTURE_CUBE_ARRAY) { assert(num_layers % 6 == 0); } assert(view->u.tex.first_layer <= view->u.tex.last_layer); assert(view->u.tex.last_layer < res->array_size); } } else { unsigned view_blocksize = util_format_get_blocksize(view->format); addr = lp_tex->data; /* probably don't really need to fill that out */ mip_offsets[0] = 0; row_stride[0] = 0; img_stride[0] = 0; /* everything specified in number of elements here. */ width0 = view->u.buf.last_element - view->u.buf.first_element + 1; addr = (uint8_t *)addr + view->u.buf.first_element * view_blocksize; assert(view->u.buf.first_element <= view->u.buf.last_element); assert(view->u.buf.last_element * view_blocksize < res->width0); } } else { /* display target texture/surface */ /* * XXX: Where should this be unmapped? */ struct llvmpipe_screen *screen = llvmpipe_screen(tex->screen); struct sw_winsys *winsys = screen->winsys; addr = winsys->displaytarget_map(winsys, lp_tex->dt, PIPE_TRANSFER_READ); row_stride[0] = lp_tex->row_stride[0]; img_stride[0] = lp_tex->img_stride[0]; mip_offsets[0] = 0; assert(addr); } draw_set_mapped_texture(lp->draw, shader_type, i, width0, tex->height0, num_layers, first_level, last_level, addr, row_stride, img_stride, mip_offsets); } } } /** * Called during state validation when LP_NEW_SAMPLER_VIEW is set. */ void llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp, unsigned num, struct pipe_sampler_view **views) { prepare_shader_sampling(lp, num, views, PIPE_SHADER_VERTEX, lp->mapped_vs_tex); } void llvmpipe_cleanup_vertex_sampling(struct llvmpipe_context *ctx) { unsigned i; for (i = 0; i < Elements(ctx->mapped_vs_tex); i++) { pipe_resource_reference(&ctx->mapped_vs_tex[i], NULL); } } /** * Called during state validation when LP_NEW_SAMPLER_VIEW is set. */ void llvmpipe_prepare_geometry_sampling(struct llvmpipe_context *lp, unsigned num, struct pipe_sampler_view **views) { prepare_shader_sampling(lp, num, views, PIPE_SHADER_GEOMETRY, lp->mapped_gs_tex); } void llvmpipe_cleanup_geometry_sampling(struct llvmpipe_context *ctx) { unsigned i; for (i = 0; i < Elements(ctx->mapped_gs_tex); i++) { pipe_resource_reference(&ctx->mapped_gs_tex[i], NULL); } } void llvmpipe_init_sampler_funcs(struct llvmpipe_context *llvmpipe) { llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state; llvmpipe->pipe.bind_sampler_states = llvmpipe_bind_sampler_states; llvmpipe->pipe.create_sampler_view = llvmpipe_create_sampler_view; llvmpipe->pipe.set_sampler_views = llvmpipe_set_sampler_views; llvmpipe->pipe.sampler_view_destroy = llvmpipe_sampler_view_destroy; llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state; }