/************************************************************************** * * Copyright 2008-2009 VMware, Inc. * 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. * **************************************************************************/ /* Vertices are just an array of floats, with all the attributes * packed. We currently assume a layout like: * * attr[0][0..3] - window position * attr[1..n][0..3] - remaining attributes. * * Attributes are assumed to be 4 floats wide but are packed so that * all the enabled attributes run contiguously. */ #include "util/u_math.h" #include "util/u_memory.h" #include "pipe/p_defines.h" #include "pipe/p_screen.h" #include "lp_context.h" #include "lp_state.h" #include "lp_quad.h" #include "lp_quad_pipe.h" #include "lp_texture.h" #include "lp_tile_cache.h" #include "lp_tile_soa.h" struct quad_shade_stage { struct quad_stage stage; /**< base class */ struct pipe_transfer *transfer; uint8_t *map; }; /** cast wrapper */ static INLINE struct quad_shade_stage * quad_shade_stage(struct quad_stage *qs) { return (struct quad_shade_stage *) qs; } /** * Execute fragment shader for the four fragments in the quad. */ static void shade_quads(struct quad_stage *qs, struct quad_header *quads[], unsigned nr) { struct quad_shade_stage *qss = quad_shade_stage( qs ); struct llvmpipe_context *llvmpipe = qs->llvmpipe; struct lp_fragment_shader *fs = llvmpipe->fs; void *constants; struct tgsi_sampler **samplers; struct quad_header *quad = quads[0]; const unsigned x = quad->input.x0; const unsigned y = quad->input.y0; uint8_t *tile = lp_get_cached_tile(llvmpipe->cbuf_cache[0], x, y); uint8_t *color; void *depth; uint32_t ALIGN16_ATTRIB mask[4][NUM_CHANNELS]; unsigned chan_index; unsigned q; assert(fs->current); if(!fs->current) return; /* Sanity checks */ assert(nr * QUAD_SIZE == TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH); assert(x % TILE_VECTOR_WIDTH == 0); assert(y % TILE_VECTOR_HEIGHT == 0); for (q = 0; q < nr; ++q) { assert(quads[q]->input.x0 == x + q*2); assert(quads[q]->input.y0 == y); } /* mask */ for (q = 0; q < 4; ++q) for (chan_index = 0; chan_index < NUM_CHANNELS; ++chan_index) mask[q][chan_index] = quads[q]->inout.mask & (1 << chan_index) ? ~0 : 0; /* color buffer */ color = &TILE_PIXEL(tile, x & (TILE_SIZE-1), y & (TILE_SIZE-1), 0); /* depth buffer */ if(qss->map) { assert((x % 2) == 0); assert((y % 2) == 0); depth = qss->map + y*qss->transfer->stride + 2*x*qss->transfer->block.size; } else depth = NULL; constants = llvmpipe->mapped_constants[PIPE_SHADER_FRAGMENT]; samplers = (struct tgsi_sampler **)llvmpipe->tgsi.frag_samplers_list; /* TODO: blend color */ assert((((uintptr_t)mask) & 0xf) == 0); assert((((uintptr_t)depth) & 0xf) == 0); assert((((uintptr_t)color) & 0xf) == 0); assert((((uintptr_t)llvmpipe->blend_color) & 0xf) == 0); /* run shader */ fs->current->jit_function( x, y, quad->coef->a0, quad->coef->dadx, quad->coef->dady, constants, &mask[0][0], color, depth, samplers); } /** * Per-primitive (or per-begin?) setup */ static void shade_begin(struct quad_stage *qs) { struct quad_shade_stage *qss = quad_shade_stage( qs ); struct llvmpipe_context *llvmpipe = qs->llvmpipe; struct pipe_screen *screen = llvmpipe->pipe.screen; struct pipe_surface *zsbuf = llvmpipe->framebuffer.zsbuf; if(qss->transfer) { if(qss->map) { screen->transfer_unmap(screen, qss->transfer); qss->map = NULL; } screen->tex_transfer_destroy(qss->transfer); qss->transfer = NULL; } if(zsbuf) { qss->transfer = screen->get_tex_transfer(screen, zsbuf->texture, zsbuf->face, zsbuf->level, zsbuf->zslice, PIPE_TRANSFER_READ_WRITE, 0, 0, zsbuf->width, zsbuf->height); if(qss->transfer) qss->map = screen->transfer_map(screen, qss->transfer); } } static void shade_destroy(struct quad_stage *qs) { struct quad_shade_stage *qss = quad_shade_stage( qs ); struct llvmpipe_context *llvmpipe = qs->llvmpipe; struct pipe_screen *screen = llvmpipe->pipe.screen; if(qss->transfer) { if(qss->map) { screen->transfer_unmap(screen, qss->transfer); qss->map = NULL; } screen->tex_transfer_destroy(qss->transfer); qss->transfer = NULL; } align_free( qs ); } struct quad_stage * lp_quad_shade_stage( struct llvmpipe_context *llvmpipe ) { struct quad_shade_stage *qss; qss = align_malloc(sizeof(struct quad_shade_stage), 16); if (!qss) return NULL; memset(qss, 0, sizeof *qss); qss->stage.llvmpipe = llvmpipe; qss->stage.begin = shade_begin; qss->stage.run = shade_quads; qss->stage.destroy = shade_destroy; return &qss->stage; }