diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_state_constants.c')
-rw-r--r-- | src/gallium/drivers/svga/svga_state_constants.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_state_constants.c b/src/gallium/drivers/svga/svga_state_constants.c new file mode 100644 index 0000000..6b0e511 --- /dev/null +++ b/src/gallium/drivers/svga/svga_state_constants.c @@ -0,0 +1,240 @@ +/********************************************************** + * 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 "svga_context.h" +#include "svga_state.h" +#include "svga_cmd.h" +#include "svga_tgsi.h" +#include "svga_debug.h" + +#include "svga_hw_reg.h" + +/*********************************************************************** + * Hardware update + */ + +/* Convert from PIPE_SHADER_* to SVGA3D_SHADERTYPE_* + */ +static int svga_shader_type( int unit ) +{ + return unit + 1; +} + + +static int emit_const( struct svga_context *svga, + int unit, + int i, + const float *value ) +{ + int ret = PIPE_OK; + + if (memcmp(svga->state.hw_draw.cb[unit][i], value, 4 * sizeof(float)) != 0) { + if (SVGA_DEBUG & DEBUG_CONSTS) + debug_printf("%s %s %d: %f %f %f %f\n", + __FUNCTION__, + unit == PIPE_SHADER_VERTEX ? "VERT" : "FRAG", + i, + value[0], + value[1], + value[2], + value[3]); + + ret = SVGA3D_SetShaderConst( svga->swc, + i, + svga_shader_type(unit), + SVGA3D_CONST_TYPE_FLOAT, + value ); + if (ret) + return ret; + + memcpy(svga->state.hw_draw.cb[unit][i], value, 4 * sizeof(float)); + } + + return ret; +} + +static int emit_consts( struct svga_context *svga, + int offset, + int unit ) +{ + struct pipe_screen *screen = svga->pipe.screen; + unsigned count; + const float (*data)[4] = NULL; + unsigned i; + int ret = PIPE_OK; + + if (svga->curr.cb[unit] == NULL) + goto done; + + count = svga->curr.cb[unit]->size / (4 * sizeof(float)); + + data = (const float (*)[4])pipe_buffer_map(screen, + svga->curr.cb[unit], + PIPE_BUFFER_USAGE_CPU_READ); + if (data == NULL) { + ret = PIPE_ERROR_OUT_OF_MEMORY; + goto done; + } + + for (i = 0; i < count; i++) { + ret = emit_const( svga, unit, offset + i, data[i] ); + if (ret) + goto done; + } + +done: + if (data) + pipe_buffer_unmap(screen, svga->curr.cb[unit]); + + return ret; +} + +static int emit_fs_consts( struct svga_context *svga, + unsigned dirty ) +{ + const struct svga_shader_result *result = svga->state.hw_draw.fs; + const struct svga_fs_compile_key *key = &result->key.fkey; + int ret = 0; + + ret = emit_consts( svga, 0, PIPE_SHADER_FRAGMENT ); + if (ret) + return ret; + + /* The internally generated fragment shader for xor blending + * doesn't have a 'result' struct. It should be fixed to avoid + * this special case, but work around it with a NULL check: + */ + if (result != NULL && + key->num_unnormalized_coords) + { + unsigned offset = result->shader->info.file_max[TGSI_FILE_CONSTANT] + 1; + int i; + + for (i = 0; i < key->num_textures; i++) { + if (key->tex[i].unnormalized) { + struct pipe_texture *tex = svga->curr.texture[i]; + float data[4]; + + data[0] = 1.0 / (float)tex->width0; + data[1] = 1.0 / (float)tex->height0; + data[2] = 1.0; + data[3] = 1.0; + + ret = emit_const( svga, + PIPE_SHADER_FRAGMENT, + key->tex[i].width_height_idx + offset, + data ); + if (ret) + return ret; + } + } + + offset += key->num_unnormalized_coords; + } + + return 0; +} + + +struct svga_tracked_state svga_hw_fs_parameters = +{ + "hw fs params", + (SVGA_NEW_FS_CONST_BUFFER | + SVGA_NEW_FS_RESULT | + SVGA_NEW_TEXTURE_BINDING), + emit_fs_consts +}; + +/*********************************************************************** + */ + +static int emit_vs_consts( struct svga_context *svga, + unsigned dirty ) +{ + const struct svga_shader_result *result = svga->state.hw_draw.vs; + const struct svga_vs_compile_key *key = &result->key.vkey; + int ret = 0; + unsigned offset; + + /* SVGA_NEW_VS_RESULT + */ + if (result == NULL) + return 0; + + /* SVGA_NEW_VS_CONST_BUFFER + */ + ret = emit_consts( svga, 0, PIPE_SHADER_VERTEX ); + if (ret) + return ret; + + offset = result->shader->info.file_max[TGSI_FILE_CONSTANT] + 1; + + /* SVGA_NEW_VS_RESULT + */ + if (key->need_prescale) { + ret = emit_const( svga, PIPE_SHADER_VERTEX, offset++, + svga->state.hw_clear.prescale.scale ); + if (ret) + return ret; + + ret = emit_const( svga, PIPE_SHADER_VERTEX, offset++, + svga->state.hw_clear.prescale.translate ); + if (ret) + return ret; + } + + /* SVGA_NEW_ZERO_STRIDE + */ + if (key->zero_stride_vertex_elements) { + unsigned i, curr_zero_stride = 0; + for (i = 0; i < PIPE_MAX_ATTRIBS; ++i) { + if (key->zero_stride_vertex_elements & (1 << i)) { + ret = emit_const( svga, PIPE_SHADER_VERTEX, offset++, + svga->curr.zero_stride_constants + + 4 * curr_zero_stride ); + if (ret) + return ret; + ++curr_zero_stride; + } + } + } + + return 0; +} + + +struct svga_tracked_state svga_hw_vs_parameters = +{ + "hw vs params", + (SVGA_NEW_PRESCALE | + SVGA_NEW_VS_CONST_BUFFER | + SVGA_NEW_ZERO_STRIDE | + SVGA_NEW_VS_RESULT), + emit_vs_consts +}; + |