diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_state_vs.c')
| -rw-r--r-- | src/gallium/drivers/svga/svga_state_vs.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_state_vs.c b/src/gallium/drivers/svga/svga_state_vs.c new file mode 100644 index 0000000000..a947745732 --- /dev/null +++ b/src/gallium/drivers/svga/svga_state_vs.c @@ -0,0 +1,239 @@ +/********************************************************** + * Copyright 2008-2009 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, sublicense, 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 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 + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * 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 "pipe/p_defines.h" +#include "util/u_math.h" +#include "translate/translate.h" + +#include "svga_context.h" +#include "svga_state.h" +#include "svga_cmd.h" +#include "svga_tgsi.h" + +#include "svga_hw_reg.h" + +/*********************************************************************** + */ + + +static INLINE int compare_vs_keys( const struct svga_vs_compile_key *a, + const struct svga_vs_compile_key *b ) +{ + unsigned keysize = svga_vs_key_size( a ); + return memcmp( a, b, keysize ); +} + + +static struct svga_shader_result *search_vs_key( struct svga_vertex_shader *vs, + const struct svga_vs_compile_key *key ) +{ + struct svga_shader_result *result = vs->base.results; + + assert(key); + + for ( ; result; result = result->next) { + if (compare_vs_keys( key, &result->key.vkey ) == 0) + return result; + } + + return NULL; +} + + +static enum pipe_error compile_vs( struct svga_context *svga, + struct svga_vertex_shader *vs, + const struct svga_vs_compile_key *key, + struct svga_shader_result **out_result ) +{ + struct svga_shader_result *result; + enum pipe_error ret = PIPE_OK; + + result = svga_translate_vertex_program( vs, key ); + if (result == NULL) { + ret = PIPE_ERROR_OUT_OF_MEMORY; + goto fail; + } + + ret = SVGA3D_DefineShader(svga->swc, + svga->state.next_vs_id, + SVGA3D_SHADERTYPE_VS, + result->tokens, + result->nr_tokens * sizeof result->tokens[0]); + if (ret) + goto fail; + + *out_result = result; + result->id = svga->state.next_vs_id++; + result->next = vs->base.results; + vs->base.results = result; + return PIPE_OK; + +fail: + if (result) + svga_destroy_shader_result( result ); + return ret; +} + +/* SVGA_NEW_PRESCALE, SVGA_NEW_RAST, SVGA_NEW_ZERO_STRIDE + */ +static int make_vs_key( struct svga_context *svga, + struct svga_vs_compile_key *key ) +{ + memset(key, 0, sizeof *key); + key->need_prescale = svga->state.hw_clear.prescale.enabled; + key->allow_psiz = svga->curr.rast->templ.point_size_per_vertex; + key->zero_stride_vertex_elements = + svga->curr.zero_stride_vertex_elements; + key->num_zero_stride_vertex_elements = + svga->curr.num_zero_stride_vertex_elements; + return 0; +} + + + +static int emit_hw_vs( struct svga_context *svga, + unsigned dirty ) +{ + struct svga_shader_result *result = NULL; + unsigned id = SVGA3D_INVALID_ID; + int ret = 0; + + /* SVGA_NEW_NEED_SWTNL */ + if (!svga->state.sw.need_swtnl) { + struct svga_vertex_shader *vs = svga->curr.vs; + struct svga_vs_compile_key key; + + ret = make_vs_key( svga, &key ); + if (ret) + return ret; + + result = search_vs_key( vs, &key ); + if (!result) { + ret = compile_vs( svga, vs, &key, &result ); + if (ret) + return ret; + } + + assert (result); + id = result->id; + } + + if (id != svga->state.hw_draw.shader_id[PIPE_SHADER_VERTEX]) { + ret = SVGA3D_SetShader(svga->swc, + SVGA3D_SHADERTYPE_VS, + id ); + if (ret) + return ret; + + svga->dirty |= SVGA_NEW_VS_RESULT; + svga->state.hw_draw.shader_id[PIPE_SHADER_VERTEX] = id; + svga->state.hw_draw.vs = result; + } + + return 0; +} + +struct svga_tracked_state svga_hw_vs = +{ + "vertex shader (hwtnl)", + (SVGA_NEW_VS | + SVGA_NEW_PRESCALE | + SVGA_NEW_NEED_SWTNL | + SVGA_NEW_ZERO_STRIDE), + emit_hw_vs +}; + + +/*********************************************************************** + */ +static int update_zero_stride( struct svga_context *svga, + unsigned dirty ) +{ + unsigned i; + + svga->curr.zero_stride_vertex_elements = 0; + svga->curr.num_zero_stride_vertex_elements = 0; + + for (i = 0; i < svga->curr.num_vertex_elements; i++) { + const struct pipe_vertex_element *vel = &svga->curr.ve[i]; + const struct pipe_vertex_buffer *vbuffer = &svga->curr.vb[ + vel->vertex_buffer_index]; + if (vbuffer->stride == 0) { + unsigned const_idx = + svga->curr.num_zero_stride_vertex_elements; + struct translate *translate; + struct translate_key key; + void *mapped_buffer; + + svga->curr.zero_stride_vertex_elements |= (1 << i); + ++svga->curr.num_zero_stride_vertex_elements; + + key.output_stride = 4 * sizeof(float); + key.nr_elements = 1; + key.element[0].input_format = vel->src_format; + key.element[0].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + key.element[0].input_buffer = vel->vertex_buffer_index; + key.element[0].input_offset = vel->src_offset; + key.element[0].output_offset = const_idx * 4 * sizeof(float); + + translate_key_sanitize(&key); + /* translate_generic_create is technically private but + * we don't want to code-generate, just want generic + * translation */ + translate = translate_generic_create(&key); + + assert(vel->src_offset == 0); + + mapped_buffer = pipe_buffer_map_range(svga->pipe.screen, + vbuffer->buffer, + vel->src_offset, + pf_get_size(vel->src_format), + PIPE_BUFFER_USAGE_CPU_READ); + translate->set_buffer(translate, vel->vertex_buffer_index, + mapped_buffer, + vbuffer->stride); + translate->run(translate, 0, 1, + svga->curr.zero_stride_constants); + + pipe_buffer_unmap(svga->pipe.screen, + vbuffer->buffer); + translate->release(translate); + } + } + + if (svga->curr.num_zero_stride_vertex_elements) + svga->dirty |= SVGA_NEW_ZERO_STRIDE; + + return 0; +} + +struct svga_tracked_state svga_hw_update_zero_stride = +{ + "update zero_stride", + ( SVGA_NEW_VELEMENT | + SVGA_NEW_VBUFFER ), + update_zero_stride +}; |