/************************************************************************** * * 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. * **************************************************************************/ #include "util/u_inlines.h" #include "util/u_memory.h" #include "util/u_math.h" #include "util/u_format.h" #include "cell_context.h" #include "cell_gen_fragment.h" #include "cell_state.h" #include "cell_state_emit.h" #include "cell_batch.h" #include "cell_texture.h" #include "draw/draw_context.h" #include "draw/draw_private.h" /** * Find/create a cell_command_fragment_ops object corresponding to the * current blend/stencil/z/colormask/etc. state. */ static struct cell_command_fragment_ops * lookup_fragment_ops(struct cell_context *cell) { struct cell_fragment_ops_key key; struct cell_command_fragment_ops *ops; /* * Build key */ memset(&key, 0, sizeof(key)); key.blend = *cell->blend; key.blend_color = cell->blend_color; key.dsa = *cell->depth_stencil; if (cell->framebuffer.cbufs[0]) key.color_format = cell->framebuffer.cbufs[0]->format; else key.color_format = PIPE_FORMAT_NONE; if (cell->framebuffer.zsbuf) key.zs_format = cell->framebuffer.zsbuf->format; else key.zs_format = PIPE_FORMAT_NONE; /* * Look up key in cache. */ ops = (struct cell_command_fragment_ops *) util_keymap_lookup(cell->fragment_ops_cache, &key); /* * If not found, create/save new fragment ops command. */ if (!ops) { struct spe_function spe_code_front, spe_code_back; unsigned int facing_dependent, total_code_size; if (0) debug_printf("**** Create New Fragment Ops\n"); /* Prepare the buffer that will hold the generated code. The * "0" passed in for the size means that the SPE code will * use a default size. */ spe_init_func(&spe_code_front, 0); spe_init_func(&spe_code_back, 0); /* Generate new code. Always generate new code for both front-facing * and back-facing fragments, even if it's the same code in both * cases. */ cell_gen_fragment_function(cell, CELL_FACING_FRONT, &spe_code_front); cell_gen_fragment_function(cell, CELL_FACING_BACK, &spe_code_back); /* Make sure the code is a multiple of 8 bytes long; this is * required to ensure that the dual pipe instruction alignment * is correct. It's also important for the SPU unpacking, * which assumes 8-byte boundaries. */ unsigned int front_code_size = spe_code_size(&spe_code_front); while (front_code_size % 8 != 0) { spe_lnop(&spe_code_front); front_code_size = spe_code_size(&spe_code_front); } unsigned int back_code_size = spe_code_size(&spe_code_back); while (back_code_size % 8 != 0) { spe_lnop(&spe_code_back); back_code_size = spe_code_size(&spe_code_back); } /* Determine whether the code we generated is facing-dependent, by * determining whether the generated code is different for the front- * and back-facing fragments. */ if (front_code_size == back_code_size && memcmp(spe_code_front.store, spe_code_back.store, front_code_size) == 0) { /* Code is identical; only need one copy. */ facing_dependent = 0; total_code_size = front_code_size; } else { /* Code is different for front-facing and back-facing fragments. * Need to send both copies. */ facing_dependent = 1; total_code_size = front_code_size + back_code_size; } /* alloc new fragment ops command. Note that this structure * has variant length based on the total code size required. */ ops = CALLOC_VARIANT_LENGTH_STRUCT(cell_command_fragment_ops, total_code_size); /* populate the new cell_command_fragment_ops object */ ops->opcode[0] = CELL_CMD_STATE_FRAGMENT_OPS; ops->total_code_size = total_code_size; ops->front_code_index = 0; memcpy(ops->code, spe_code_front.store, front_code_size); if (facing_dependent) { /* We have separate front- and back-facing code. Append the * back-facing code to the buffer. Be careful because the code * size is in bytes, but the buffer is of unsigned elements. */ ops->back_code_index = front_code_size / sizeof(spe_code_front.store[0]); memcpy(ops->code + ops->back_code_index, spe_code_back.store, back_code_size); } else { /* Use the same code for front- and back-facing fragments */ ops->back_code_index = ops->front_code_index; } /* Set the fields for the fallback case. Note that these fields * (and the whole fallback case) will eventually go away. */ ops->dsa = *cell->depth_stencil; ops->blend = *cell->blend; ops->blend_color = cell->blend_color; /* insert cell_command_fragment_ops object into keymap/cache */ util_keymap_insert(cell->fragment_ops_cache, &key, ops, NULL); /* release rtasm buffer */ spe_release_func(&spe_code_front); spe_release_func(&spe_code_back); } else { if (0) debug_printf("**** Re-use Fragment Ops\n"); } return ops; } static void emit_state_cmd(struct cell_context *cell, uint cmd, const void *state, uint state_size) { uint32_t *dst = (uint32_t *) cell_batch_alloc16(cell, ROUNDUP16(sizeof(opcode_t) + state_size)); *dst = cmd; memcpy(dst + 4, state, state_size); } /** * For state marked as 'dirty', construct a state-update command block * and insert it into the current batch buffer. */ void cell_emit_state(struct cell_context *cell) { if (cell->dirty & CELL_NEW_FRAMEBUFFER) { struct pipe_surface *cbuf = cell->framebuffer.cbufs[0]; struct pipe_surface *zbuf = cell->framebuffer.zsbuf; STATIC_ASSERT(sizeof(struct cell_command_framebuffer) % 16 == 0); struct cell_command_framebuffer *fb = cell_batch_alloc16(cell, sizeof(*fb)); fb->opcode[0] = CELL_CMD_STATE_FRAMEBUFFER; fb->color_start = cell->cbuf_map[0]; fb->color_format = cbuf->format; fb->depth_start = cell->zsbuf_map; fb->depth_format = zbuf ? zbuf->format : PIPE_FORMAT_NONE; fb->width = cell->framebuffer.width; fb->height = cell->framebuffer.height; #if 0 printf("EMIT color format %s\n", util_format_name(fb->color_format)); printf("EMIT depth format %s\n", util_format_name(fb->depth_format)); #endif } if (cell->dirty & (CELL_NEW_RASTERIZER)) { STATIC_ASSERT(sizeof(struct cell_command_rasterizer) % 16 == 0); struct cell_command_rasterizer *rast = cell_batch_alloc16(cell, sizeof(*rast)); rast->opcode[0] = CELL_CMD_STATE_RASTERIZER; rast->rasterizer = *cell->rasterizer; } if (cell->dirty & (CELL_NEW_FS)) { /* Send new fragment program to SPUs */ STATIC_ASSERT(sizeof(struct cell_command_fragment_program) % 16 == 0); struct cell_command_fragment_program *fp = cell_batch_alloc16(cell, sizeof(*fp)); fp->opcode[0] = CELL_CMD_STATE_FRAGMENT_PROGRAM; fp->num_inst = cell->fs->code.num_inst; memcpy(&fp->code, cell->fs->code.store, SPU_MAX_FRAGMENT_PROGRAM_INSTS * SPE_INST_SIZE); if (0) { int i; printf("PPU Emit CELL_CMD_STATE_FRAGMENT_PROGRAM:\n"); for (i = 0; i < fp->num_inst; i++) { printf(" %3d: 0x%08x\n", i, fp->code[i]); } } } if (cell->dirty & (CELL_NEW_FS_CONSTANTS)) { const uint shader = PIPE_SHADER_FRAGMENT; const uint num_const = cell->constants[shader]->width0 / sizeof(float); uint i, j; float *buf = cell_batch_alloc16(cell, ROUNDUP16(32 + num_const * sizeof(float))); uint32_t *ibuf = (uint32_t *) buf; const float *constants = cell->mapped_constants[shader]; ibuf[0] = CELL_CMD_STATE_FS_CONSTANTS; ibuf[4] = num_const; j = 8; for (i = 0; i < num_const; i++) { buf[j++] = constants[i]; } } if (cell->dirty & (CELL_NEW_FRAMEBUFFER | CELL_NEW_DEPTH_STENCIL | CELL_NEW_BLEND)) { struct cell_command_fragment_ops *fops, *fops_cmd; /* Note that cell_command_fragment_ops is a variant-sized record */ fops = lookup_fragment_ops(cell); fops_cmd = cell_batch_alloc16(cell, ROUNDUP16(sizeof(*fops_cmd) + fops->total_code_size)); memcpy(fops_cmd, fops, sizeof(*fops) + fops->total_code_size); } if (cell->dirty & CELL_NEW_SAMPLER) { uint i; for (i = 0; i < CELL_MAX_SAMPLERS; i++) { if (cell->dirty_samplers & (1 << i)) { if (cell->sampler[i]) { STATIC_ASSERT(sizeof(struct cell_command_sampler) % 16 == 0); struct cell_command_sampler *sampler = cell_batch_alloc16(cell, sizeof(*sampler)); sampler->opcode[0] = CELL_CMD_STATE_SAMPLER; sampler->unit = i; sampler->state = *cell->sampler[i]; } } } cell->dirty_samplers = 0x0; } if (cell->dirty & CELL_NEW_TEXTURE) { uint i; for (i = 0;i < CELL_MAX_SAMPLERS; i++) { if (cell->dirty_textures & (1 << i)) { STATIC_ASSERT(sizeof(struct cell_command_texture) % 16 == 0); struct cell_command_texture *texture = (struct cell_command_texture *) cell_batch_alloc16(cell, sizeof(*texture)); texture->opcode[0] = CELL_CMD_STATE_TEXTURE; texture->unit = i; if (cell->texture[i]) { struct cell_resource *ct = cell->texture[i]; uint level; for (level = 0; level < CELL_MAX_TEXTURE_LEVELS; level++) { texture->start[level] = (ct->mapped + ct->level_offset[level]); texture->width[level] = u_minify(ct->base.width0, level); texture->height[level] = u_minify(ct->base.height0, level); texture->depth[level] = u_minify(ct->base.depth0, level); } texture->target = ct->base.target; } else { uint level; for (level = 0; level < CELL_MAX_TEXTURE_LEVELS; level++) { texture->start[level] = NULL; texture->width[level] = 0; texture->height[level] = 0; texture->depth[level] = 0; } texture->target = 0; } } } cell->dirty_textures = 0x0; } if (cell->dirty & CELL_NEW_VERTEX_INFO) { emit_state_cmd(cell, CELL_CMD_STATE_VERTEX_INFO, &cell->vertex_info, sizeof(struct vertex_info)); } #if 0 if (cell->dirty & CELL_NEW_VS) { const struct draw_context *const draw = cell->draw; struct cell_shader_info info; info.num_outputs = draw_num_shader_outputs(draw); info.declarations = (uintptr_t) draw->vs.machine.Declarations; info.num_declarations = draw->vs.machine.NumDeclarations; info.instructions = (uintptr_t) draw->vs.machine.Instructions; info.num_instructions = draw->vs.machine.NumInstructions; info.immediates = (uintptr_t) draw->vs.machine.Imms; info.num_immediates = draw->vs.machine.ImmLimit / 4; emit_state_cmd(cell, CELL_CMD_STATE_BIND_VS, &info, sizeof(info)); } #endif }