diff options
Diffstat (limited to 'src/gallium/drivers/cell/ppu/cell_state_emit.c')
| -rw-r--r-- | src/gallium/drivers/cell/ppu/cell_state_emit.c | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/src/gallium/drivers/cell/ppu/cell_state_emit.c b/src/gallium/drivers/cell/ppu/cell_state_emit.c new file mode 100644 index 00000000000..39b85faeb86 --- /dev/null +++ b/src/gallium/drivers/cell/ppu/cell_state_emit.c @@ -0,0 +1,340 @@ +/************************************************************************** + * + * 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 "pipe/p_inlines.h" +#include "util/u_memory.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", pf_name(fb->color_format)); + printf("EMIT depth format %s\n", pf_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].size / 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 = pipe_buffer_map(cell->pipe.screen, + cell->constants[shader].buffer, + PIPE_BUFFER_USAGE_CPU_READ); + ibuf[0] = CELL_CMD_STATE_FS_CONSTANTS; + ibuf[4] = num_const; + j = 8; + for (i = 0; i < num_const; i++) { + buf[j++] = constants[i]; + } + pipe_buffer_unmap(cell->pipe.screen, cell->constants[shader].buffer); + } + + 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]) { + uint level; + for (level = 0; level < CELL_MAX_TEXTURE_LEVELS; level++) { + texture->start[level] = cell->texture[i]->tiled_mapped[level]; + texture->width[level] = cell->texture[i]->base.width[level]; + texture->height[level] = cell->texture[i]->base.height[level]; + texture->depth[level] = cell->texture[i]->base.depth[level]; + } + texture->target = cell->texture[i]->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_vs_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 +} |