/************************************************************************** * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. * 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 TUNGSTEN GRAPHICS 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: * Keith Whitwell * Brian Paul */ #include "main/macros.h" #include "program/prog_instruction.h" #include "st_context.h" #include "st_atom.h" #include "st_texture.h" #include "st_format.h" #include "st_cb_texture.h" #include "pipe/p_context.h" #include "util/u_inlines.h" #include "cso_cache/cso_context.h" static boolean check_sampler_swizzle(struct pipe_sampler_view *sv, uint32_t _swizzle) { if ((sv->swizzle_r != GET_SWZ(_swizzle, 0)) || (sv->swizzle_g != GET_SWZ(_swizzle, 1)) || (sv->swizzle_b != GET_SWZ(_swizzle, 2)) || (sv->swizzle_a != GET_SWZ(_swizzle, 3))) return true; return false; } static INLINE struct pipe_sampler_view * st_create_texture_sampler_view_from_stobj(struct pipe_context *pipe, struct st_texture_object *stObj, enum pipe_format format) { struct pipe_sampler_view templ; u_sampler_view_default_template(&templ, stObj->pt, format); if (stObj->base._Swizzle != SWIZZLE_NOOP) { templ.swizzle_r = GET_SWZ(stObj->base._Swizzle, 0); templ.swizzle_g = GET_SWZ(stObj->base._Swizzle, 1); templ.swizzle_b = GET_SWZ(stObj->base._Swizzle, 2); templ.swizzle_a = GET_SWZ(stObj->base._Swizzle, 3); } return pipe->create_sampler_view(pipe, stObj->pt, &templ); } static INLINE struct pipe_sampler_view * st_get_texture_sampler_view_from_stobj(struct st_texture_object *stObj, struct pipe_context *pipe, enum pipe_format format) { if (!stObj || !stObj->pt) { return NULL; } if (!stObj->sampler_view) { stObj->sampler_view = st_create_texture_sampler_view_from_stobj(pipe, stObj, format); } return stObj->sampler_view; } static void update_textures(struct st_context *st) { struct pipe_context *pipe = st->pipe; struct gl_vertex_program *vprog = st->ctx->VertexProgram._Current; struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current; const GLbitfield samplersUsed = (vprog->Base.SamplersUsed | fprog->Base.SamplersUsed); GLuint su; st->state.num_textures = 0; /* loop over sampler units (aka tex image units) */ for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) { struct pipe_sampler_view *sampler_view = NULL; enum pipe_format st_view_format; if (samplersUsed & (1 << su)) { struct gl_texture_object *texObj; struct st_texture_object *stObj; GLboolean retval; GLuint texUnit; if (fprog->Base.SamplersUsed & (1 << su)) texUnit = fprog->Base.SamplerUnits[su]; else texUnit = vprog->Base.SamplerUnits[su]; texObj = st->ctx->Texture.Unit[texUnit]._Current; if (!texObj) { texObj = st_get_default_texture(st); } stObj = st_texture_object(texObj); retval = st_finalize_texture(st->ctx, st->pipe, texObj); if (!retval) { /* out of mem */ continue; } st_view_format = stObj->pt->format; { struct st_texture_image *firstImage; enum pipe_format firstImageFormat; firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat); if (firstImageFormat != stObj->pt->format) st_view_format = firstImageFormat; } st->state.num_textures = su + 1; /* if sampler view has changed dereference it */ if (stObj->sampler_view) if (check_sampler_swizzle(stObj->sampler_view, stObj->base._Swizzle) || (st_view_format != stObj->sampler_view->format)) pipe_sampler_view_reference(&stObj->sampler_view, NULL); sampler_view = st_get_texture_sampler_view_from_stobj(stObj, pipe, st_view_format); } pipe_sampler_view_reference(&st->state.sampler_views[su], sampler_view); } cso_set_fragment_sampler_views(st->cso_context, st->state.num_textures, st->state.sampler_views); if (st->ctx->Const.MaxVertexTextureImageUnits > 0) { cso_set_vertex_sampler_views(st->cso_context, MIN2(st->state.num_textures, st->ctx->Const.MaxVertexTextureImageUnits), st->state.sampler_views); } } const struct st_tracked_state st_update_texture = { "st_update_texture", /* name */ { /* dirty */ _NEW_TEXTURE, /* mesa */ ST_NEW_FRAGMENT_PROGRAM, /* st */ }, update_textures /* update */ }; static void finalize_textures(struct st_context *st) { struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current; const GLboolean prev_missing_textures = st->missing_textures; GLuint su; st->missing_textures = GL_FALSE; for (su = 0; su < st->ctx->Const.MaxTextureCoordUnits; su++) { if (fprog->Base.SamplersUsed & (1 << su)) { const GLuint texUnit = fprog->Base.SamplerUnits[su]; struct gl_texture_object *texObj = st->ctx->Texture.Unit[texUnit]._Current; if (texObj) { GLboolean retval; retval = st_finalize_texture(st->ctx, st->pipe, texObj); if (!retval) { /* out of mem */ st->missing_textures = GL_TRUE; continue; } } } } if (prev_missing_textures != st->missing_textures) st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM; } const struct st_tracked_state st_finalize_textures = { "st_finalize_textures", /* name */ { /* dirty */ _NEW_TEXTURE, /* mesa */ 0, /* st */ }, finalize_textures /* update */ };