/********************************************************** * 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 "util/u_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 shader ) { assert(PIPE_SHADER_VERTEX + 1 == SVGA3D_SHADERTYPE_VS); assert(PIPE_SHADER_FRAGMENT + 1 == SVGA3D_SHADERTYPE_PS); assert(shader <= PIPE_SHADER_FRAGMENT); return shader + 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_transfer *transfer = NULL; 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]->width0 / (4 * sizeof(float)); data = (const float (*)[4])pipe_buffer_map(&svga->pipe, svga->curr.cb[unit], PIPE_TRANSFER_READ, &transfer); 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(&svga->pipe, transfer); 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_resource *tex = svga->curr.sampler_views[i]->texture; 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 };