| /********************************************************** |
| * 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 "util/u_math.h" |
| #include "tgsi/tgsi_parse.h" |
| |
| #include "svga_context.h" |
| #include "svga_resource_buffer.h" |
| |
| |
| struct svga_constbuf |
| { |
| unsigned type; |
| float (*data)[4]; |
| unsigned count; |
| }; |
| |
| |
| |
| static void |
| svga_set_constant_buffer(struct pipe_context *pipe, |
| enum pipe_shader_type shader, uint index, |
| const struct pipe_constant_buffer *cb) |
| { |
| struct svga_screen *svgascreen = svga_screen(pipe->screen); |
| struct svga_context *svga = svga_context(pipe); |
| struct pipe_resource *buf = cb ? cb->buffer : NULL; |
| unsigned buffer_size = 0; |
| |
| if (cb) { |
| buffer_size = cb->buffer_size; |
| if (cb->user_buffer) { |
| buf = svga_user_buffer_create(pipe->screen, |
| (void *) cb->user_buffer, |
| cb->buffer_size, |
| PIPE_BIND_CONSTANT_BUFFER); |
| } |
| } |
| |
| assert(shader < PIPE_SHADER_TYPES); |
| assert(index < ARRAY_SIZE(svga->curr.constbufs[shader])); |
| assert(index < svgascreen->max_const_buffers); |
| (void) svgascreen; |
| |
| pipe_resource_reference(&svga->curr.constbufs[shader][index].buffer, buf); |
| |
| /* Make sure the constant buffer size to be updated is within the |
| * limit supported by the device. |
| */ |
| svga->curr.constbufs[shader][index].buffer_size = |
| MIN2(buffer_size, SVGA_MAX_CONST_BUF_SIZE); |
| |
| svga->curr.constbufs[shader][index].buffer_offset = cb ? cb->buffer_offset : 0; |
| svga->curr.constbufs[shader][index].user_buffer = NULL; /* not used */ |
| |
| if (index == 0) { |
| if (shader == PIPE_SHADER_FRAGMENT) |
| svga->dirty |= SVGA_NEW_FS_CONSTS; |
| else if (shader == PIPE_SHADER_VERTEX) |
| svga->dirty |= SVGA_NEW_VS_CONSTS; |
| else if (shader == PIPE_SHADER_GEOMETRY) |
| svga->dirty |= SVGA_NEW_GS_CONSTS; |
| else if (shader == PIPE_SHADER_TESS_CTRL) |
| svga->dirty |= SVGA_NEW_TCS_CONSTS; |
| else if (shader == PIPE_SHADER_TESS_EVAL) |
| svga->dirty |= SVGA_NEW_TES_CONSTS; |
| } else { |
| if (shader == PIPE_SHADER_FRAGMENT) |
| svga->dirty |= SVGA_NEW_FS_CONST_BUFFER; |
| else if (shader == PIPE_SHADER_VERTEX) |
| svga->dirty |= SVGA_NEW_VS_CONST_BUFFER; |
| else if (shader == PIPE_SHADER_GEOMETRY) |
| svga->dirty |= SVGA_NEW_GS_CONST_BUFFER; |
| else if (shader == PIPE_SHADER_TESS_CTRL) |
| svga->dirty |= SVGA_NEW_TCS_CONST_BUFFER; |
| else if (shader == PIPE_SHADER_TESS_EVAL) |
| svga->dirty |= SVGA_NEW_TES_CONST_BUFFER; |
| |
| /* update bitmask of dirty const buffers */ |
| svga->state.dirty_constbufs[shader] |= (1 << index); |
| } |
| |
| if (cb && cb->user_buffer) { |
| pipe_resource_reference(&buf, NULL); |
| } |
| } |
| |
| |
| void |
| svga_init_constbuffer_functions(struct svga_context *svga) |
| { |
| svga->pipe.set_constant_buffer = svga_set_constant_buffer; |
| } |
| |