/************************************************************************** * * Copyright 2003 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. * **************************************************************************/ #include #include "main/glheader.h" #include "main/context.h" #include "pipe/p_defines.h" #include "st_context.h" #include "st_atom.h" #include "st_program.h" #include "st_manager.h" /** * This is used to initialize st->render_atoms[]. */ static const struct st_tracked_state *render_atoms[] = { &st_update_depth_stencil_alpha, &st_update_clip, &st_update_fp, &st_update_gp, &st_update_tep, &st_update_tcp, &st_update_vp, &st_update_rasterizer, &st_update_polygon_stipple, &st_update_viewport, &st_update_scissor, &st_update_blend, &st_update_vertex_texture, &st_update_fragment_texture, &st_update_geometry_texture, &st_update_tessctrl_texture, &st_update_tesseval_texture, &st_update_sampler, /* depends on update_*_texture for swizzle */ &st_update_framebuffer, &st_update_msaa, &st_update_sample_shading, &st_update_vs_constants, &st_update_tcs_constants, &st_update_tes_constants, &st_update_gs_constants, &st_update_fs_constants, &st_bind_vs_ubos, &st_bind_tcs_ubos, &st_bind_tes_ubos, &st_bind_fs_ubos, &st_bind_gs_ubos, &st_bind_vs_atomics, &st_bind_tcs_atomics, &st_bind_tes_atomics, &st_bind_fs_atomics, &st_bind_gs_atomics, &st_bind_vs_ssbos, &st_bind_tcs_ssbos, &st_bind_tes_ssbos, &st_bind_fs_ssbos, &st_bind_gs_ssbos, &st_update_pixel_transfer, &st_update_tess, /* this must be done after the vertex program update */ &st_update_array }; /** * This is used to initialize st->compute_atoms[]. */ static const struct st_tracked_state *compute_atoms[] = { &st_update_cp, &st_update_compute_texture, &st_update_sampler, /* depends on update_compute_texture for swizzle */ &st_update_cs_constants, &st_bind_cs_ubos, &st_bind_cs_atomics, &st_bind_cs_ssbos, }; void st_init_atoms( struct st_context *st ) { /* no-op */ } void st_destroy_atoms( struct st_context *st ) { /* no-op */ } static bool check_state(const struct st_state_flags *a, const struct st_state_flags *b) { return (a->mesa & b->mesa) || (a->st & b->st); } static void accumulate_state(struct st_state_flags *a, const struct st_state_flags *b) { a->mesa |= b->mesa; a->st |= b->st; } static void xor_states(struct st_state_flags *result, const struct st_state_flags *a, const struct st_state_flags *b) { result->mesa = a->mesa ^ b->mesa; result->st = a->st ^ b->st; } /* Too complex to figure out, just check every time: */ static void check_program_state( struct st_context *st ) { struct gl_context *ctx = st->ctx; if (ctx->VertexProgram._Current != &st->vp->Base) st->dirty.st |= ST_NEW_VERTEX_PROGRAM; if (ctx->FragmentProgram._Current != &st->fp->Base) st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM; if (ctx->GeometryProgram._Current != &st->gp->Base) st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM; } static void check_attrib_edgeflag(struct st_context *st) { const struct gl_client_array **arrays = st->ctx->Array._DrawArrays; GLboolean vertdata_edgeflags, edgeflag_culls_prims, edgeflags_enabled; if (!arrays) return; edgeflags_enabled = st->ctx->Polygon.FrontMode != GL_FILL || st->ctx->Polygon.BackMode != GL_FILL; vertdata_edgeflags = edgeflags_enabled && arrays[VERT_ATTRIB_EDGEFLAG]->StrideB != 0; if (vertdata_edgeflags != st->vertdata_edgeflags) { st->vertdata_edgeflags = vertdata_edgeflags; st->dirty.st |= ST_NEW_VERTEX_PROGRAM; } edgeflag_culls_prims = edgeflags_enabled && !vertdata_edgeflags && !st->ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0]; if (edgeflag_culls_prims != st->edgeflag_culls_prims) { st->edgeflag_culls_prims = edgeflag_culls_prims; st->dirty.st |= ST_NEW_RASTERIZER; } } /*********************************************************************** * Update all derived state: */ void st_validate_state( struct st_context *st, enum st_pipeline pipeline ) { const struct st_tracked_state **atoms; struct st_state_flags *state; GLuint num_atoms; GLuint i; /* Get pipeline state. */ switch (pipeline) { case ST_PIPELINE_RENDER: atoms = render_atoms; num_atoms = ARRAY_SIZE(render_atoms); state = &st->dirty; break; case ST_PIPELINE_COMPUTE: atoms = compute_atoms; num_atoms = ARRAY_SIZE(compute_atoms); state = &st->dirty_cp; break; default: unreachable("Invalid pipeline specified"); } /* Get Mesa driver state. */ st->dirty.st |= st->ctx->NewDriverState; st->dirty_cp.st |= st->ctx->NewDriverState; st->ctx->NewDriverState = 0; if (pipeline == ST_PIPELINE_RENDER) { check_attrib_edgeflag(st); check_program_state(st); st_manager_validate_framebuffers(st); } if (state->st == 0 && state->mesa == 0) return; /*printf("%s %x/%x\n", __func__, state->mesa, state->st);*/ #ifdef DEBUG if (1) { #else if (0) { #endif /* Debug version which enforces various sanity checks on the * state flags which are generated and checked to help ensure * state atoms are ordered correctly in the list. */ struct st_state_flags examined, prev; memset(&examined, 0, sizeof(examined)); prev = *state; for (i = 0; i < num_atoms; i++) { const struct st_tracked_state *atom = atoms[i]; struct st_state_flags generated; /*printf("atom %s %x/%x\n", atom->name, atom->dirty.mesa, atom->dirty.st);*/ if (!(atom->dirty.mesa || atom->dirty.st) || !atom->update) { printf("malformed atom %s\n", atom->name); assert(0); } if (check_state(state, &atom->dirty)) { atoms[i]->update( st ); /*printf("after: %x\n", atom->dirty.mesa);*/ } accumulate_state(&examined, &atom->dirty); /* generated = (prev ^ state) * if (examined & generated) * fail; */ xor_states(&generated, &prev, state); assert(!check_state(&examined, &generated)); prev = *state; } /*printf("\n");*/ } else { for (i = 0; i < num_atoms; i++) { if (check_state(state, &atoms[i]->dirty)) atoms[i]->update( st ); } } memset(state, 0, sizeof(*state)); }