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| 5564 | serge | 1 | /********************************************************** |
| 2 | * Copyright 2008-2009 VMware, Inc. All rights reserved. |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person |
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| 5 | * obtaining a copy of this software and associated documentation |
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| 6 | * files (the "Software"), to deal in the Software without |
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| 7 | * restriction, including without limitation the rights to use, copy, |
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| 8 | * modify, merge, publish, distribute, sublicense, and/or sell copies |
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| 9 | * of the Software, and to permit persons to whom the Software is |
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| 10 | * furnished to do so, subject to the following conditions: |
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| 11 | * |
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| 12 | * The above copyright notice and this permission notice shall be |
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| 13 | * included in all copies or substantial portions of the Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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| 18 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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| 19 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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| 20 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 21 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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| 22 | * SOFTWARE. |
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| 23 | * |
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| 24 | **********************************************************/ |
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| 25 | |||
| 26 | #include "util/u_inlines.h" |
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| 27 | #include "pipe/p_defines.h" |
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| 28 | #include "util/u_math.h" |
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| 29 | #include "util/u_memory.h" |
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| 30 | |||
| 31 | #include "svga_context.h" |
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| 32 | |||
| 33 | #include "svga_hw_reg.h" |
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| 34 | |||
| 35 | |||
| 36 | static INLINE unsigned |
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| 37 | svga_translate_blend_factor(unsigned factor) |
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| 38 | { |
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| 39 | switch (factor) { |
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| 40 | case PIPE_BLENDFACTOR_ZERO: return SVGA3D_BLENDOP_ZERO; |
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| 41 | case PIPE_BLENDFACTOR_SRC_ALPHA: return SVGA3D_BLENDOP_SRCALPHA; |
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| 42 | case PIPE_BLENDFACTOR_ONE: return SVGA3D_BLENDOP_ONE; |
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| 43 | case PIPE_BLENDFACTOR_SRC_COLOR: return SVGA3D_BLENDOP_SRCCOLOR; |
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| 44 | case PIPE_BLENDFACTOR_INV_SRC_COLOR: return SVGA3D_BLENDOP_INVSRCCOLOR; |
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| 45 | case PIPE_BLENDFACTOR_DST_COLOR: return SVGA3D_BLENDOP_DESTCOLOR; |
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| 46 | case PIPE_BLENDFACTOR_INV_DST_COLOR: return SVGA3D_BLENDOP_INVDESTCOLOR; |
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| 47 | case PIPE_BLENDFACTOR_INV_SRC_ALPHA: return SVGA3D_BLENDOP_INVSRCALPHA; |
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| 48 | case PIPE_BLENDFACTOR_DST_ALPHA: return SVGA3D_BLENDOP_DESTALPHA; |
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| 49 | case PIPE_BLENDFACTOR_INV_DST_ALPHA: return SVGA3D_BLENDOP_INVDESTALPHA; |
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| 50 | case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: return SVGA3D_BLENDOP_SRCALPHASAT; |
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| 51 | case PIPE_BLENDFACTOR_CONST_COLOR: return SVGA3D_BLENDOP_BLENDFACTOR; |
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| 52 | case PIPE_BLENDFACTOR_INV_CONST_COLOR: return SVGA3D_BLENDOP_INVBLENDFACTOR; |
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| 53 | case PIPE_BLENDFACTOR_CONST_ALPHA: return SVGA3D_BLENDOP_BLENDFACTOR; /* ? */ |
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| 54 | case PIPE_BLENDFACTOR_INV_CONST_ALPHA: return SVGA3D_BLENDOP_INVBLENDFACTOR; /* ? */ |
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| 55 | default: |
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| 56 | assert(0); |
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| 57 | return SVGA3D_BLENDOP_ZERO; |
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| 58 | } |
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| 59 | } |
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| 60 | |||
| 61 | static INLINE unsigned |
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| 62 | svga_translate_blend_func(unsigned mode) |
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| 63 | { |
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| 64 | switch (mode) { |
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| 65 | case PIPE_BLEND_ADD: return SVGA3D_BLENDEQ_ADD; |
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| 66 | case PIPE_BLEND_SUBTRACT: return SVGA3D_BLENDEQ_SUBTRACT; |
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| 67 | case PIPE_BLEND_REVERSE_SUBTRACT: return SVGA3D_BLENDEQ_REVSUBTRACT; |
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| 68 | case PIPE_BLEND_MIN: return SVGA3D_BLENDEQ_MINIMUM; |
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| 69 | case PIPE_BLEND_MAX: return SVGA3D_BLENDEQ_MAXIMUM; |
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| 70 | default: |
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| 71 | assert(0); |
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| 72 | return SVGA3D_BLENDEQ_ADD; |
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| 73 | } |
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| 74 | } |
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| 75 | |||
| 76 | |||
| 77 | static void * |
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| 78 | svga_create_blend_state(struct pipe_context *pipe, |
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| 79 | const struct pipe_blend_state *templ) |
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| 80 | { |
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| 81 | struct svga_blend_state *blend = CALLOC_STRUCT( svga_blend_state ); |
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| 82 | unsigned i; |
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| 83 | |||
| 84 | |||
| 85 | /* Fill in the per-rendertarget blend state. We currently only |
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| 86 | * have one rendertarget. |
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| 87 | */ |
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| 88 | for (i = 0; i < 1; i++) { |
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| 89 | /* No way to set this in SVGA3D, and no way to correctly implement it on |
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| 90 | * top of D3D9 API. Instead we try to simulate with various blend modes. |
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| 91 | */ |
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| 92 | if (templ->logicop_enable) { |
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| 93 | switch (templ->logicop_func) { |
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| 94 | case PIPE_LOGICOP_XOR: |
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| 95 | case PIPE_LOGICOP_INVERT: |
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| 96 | blend->need_white_fragments = TRUE; |
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| 97 | blend->rt[i].blend_enable = TRUE; |
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| 98 | blend->rt[i].srcblend = SVGA3D_BLENDOP_ONE; |
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| 99 | blend->rt[i].dstblend = SVGA3D_BLENDOP_ONE; |
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| 100 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_SUBTRACT; |
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| 101 | break; |
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| 102 | case PIPE_LOGICOP_CLEAR: |
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| 103 | blend->rt[i].blend_enable = TRUE; |
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| 104 | blend->rt[i].srcblend = SVGA3D_BLENDOP_ZERO; |
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| 105 | blend->rt[i].dstblend = SVGA3D_BLENDOP_ZERO; |
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| 106 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_MINIMUM; |
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| 107 | break; |
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| 108 | case PIPE_LOGICOP_COPY: |
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| 109 | blend->rt[i].blend_enable = FALSE; |
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| 110 | break; |
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| 111 | case PIPE_LOGICOP_COPY_INVERTED: |
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| 112 | blend->rt[i].blend_enable = TRUE; |
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| 113 | blend->rt[i].srcblend = SVGA3D_BLENDOP_INVSRCCOLOR; |
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| 114 | blend->rt[i].dstblend = SVGA3D_BLENDOP_ZERO; |
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| 115 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_ADD; |
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| 116 | break; |
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| 117 | case PIPE_LOGICOP_NOOP: |
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| 118 | blend->rt[i].blend_enable = TRUE; |
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| 119 | blend->rt[i].srcblend = SVGA3D_BLENDOP_ZERO; |
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| 120 | blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; |
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| 121 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_ADD; |
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| 122 | break; |
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| 123 | case PIPE_LOGICOP_SET: |
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| 124 | blend->rt[i].blend_enable = TRUE; |
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| 125 | blend->rt[i].srcblend = SVGA3D_BLENDOP_ONE; |
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| 126 | blend->rt[i].dstblend = SVGA3D_BLENDOP_ONE; |
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| 127 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_MAXIMUM; |
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| 128 | break; |
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| 129 | case PIPE_LOGICOP_AND: |
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| 130 | /* Approximate with minimum - works for the 0 & anything case: */ |
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| 131 | blend->rt[i].blend_enable = TRUE; |
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| 132 | blend->rt[i].srcblend = SVGA3D_BLENDOP_SRCCOLOR; |
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| 133 | blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; |
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| 134 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_MINIMUM; |
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| 135 | break; |
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| 136 | case PIPE_LOGICOP_AND_REVERSE: |
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| 137 | blend->rt[i].blend_enable = TRUE; |
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| 138 | blend->rt[i].srcblend = SVGA3D_BLENDOP_SRCCOLOR; |
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| 139 | blend->rt[i].dstblend = SVGA3D_BLENDOP_INVDESTCOLOR; |
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| 140 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_MINIMUM; |
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| 141 | break; |
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| 142 | case PIPE_LOGICOP_AND_INVERTED: |
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| 143 | blend->rt[i].blend_enable = TRUE; |
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| 144 | blend->rt[i].srcblend = SVGA3D_BLENDOP_INVSRCCOLOR; |
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| 145 | blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; |
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| 146 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_MINIMUM; |
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| 147 | break; |
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| 148 | case PIPE_LOGICOP_OR: |
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| 149 | /* Approximate with maximum - works for the 1 | anything case: */ |
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| 150 | blend->rt[i].blend_enable = TRUE; |
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| 151 | blend->rt[i].srcblend = SVGA3D_BLENDOP_SRCCOLOR; |
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| 152 | blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; |
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| 153 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_MAXIMUM; |
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| 154 | break; |
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| 155 | case PIPE_LOGICOP_OR_REVERSE: |
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| 156 | blend->rt[i].blend_enable = TRUE; |
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| 157 | blend->rt[i].srcblend = SVGA3D_BLENDOP_SRCCOLOR; |
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| 158 | blend->rt[i].dstblend = SVGA3D_BLENDOP_INVDESTCOLOR; |
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| 159 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_MAXIMUM; |
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| 160 | break; |
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| 161 | case PIPE_LOGICOP_OR_INVERTED: |
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| 162 | blend->rt[i].blend_enable = TRUE; |
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| 163 | blend->rt[i].srcblend = SVGA3D_BLENDOP_INVSRCCOLOR; |
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| 164 | blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; |
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| 165 | blend->rt[i].blendeq = SVGA3D_BLENDEQ_MAXIMUM; |
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| 166 | break; |
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| 167 | case PIPE_LOGICOP_NAND: |
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| 168 | case PIPE_LOGICOP_NOR: |
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| 169 | case PIPE_LOGICOP_EQUIV: |
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| 170 | /* Fill these in with plausible values */ |
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| 171 | blend->rt[i].blend_enable = FALSE; |
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| 172 | break; |
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| 173 | default: |
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| 174 | assert(0); |
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| 175 | break; |
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| 176 | } |
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| 177 | } |
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| 178 | else { |
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| 179 | blend->rt[i].blend_enable = templ->rt[0].blend_enable; |
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| 180 | |||
| 181 | if (templ->rt[0].blend_enable) { |
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| 182 | blend->rt[i].srcblend = svga_translate_blend_factor(templ->rt[0].rgb_src_factor); |
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| 183 | blend->rt[i].dstblend = svga_translate_blend_factor(templ->rt[0].rgb_dst_factor); |
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| 184 | blend->rt[i].blendeq = svga_translate_blend_func(templ->rt[0].rgb_func); |
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| 185 | blend->rt[i].srcblend_alpha = svga_translate_blend_factor(templ->rt[0].alpha_src_factor); |
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| 186 | blend->rt[i].dstblend_alpha = svga_translate_blend_factor(templ->rt[0].alpha_dst_factor); |
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| 187 | blend->rt[i].blendeq_alpha = svga_translate_blend_func(templ->rt[0].alpha_func); |
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| 188 | |||
| 189 | if (blend->rt[i].srcblend_alpha != blend->rt[i].srcblend || |
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| 190 | blend->rt[i].dstblend_alpha != blend->rt[i].dstblend || |
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| 191 | blend->rt[i].blendeq_alpha != blend->rt[i].blendeq) |
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| 192 | { |
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| 193 | blend->rt[i].separate_alpha_blend_enable = TRUE; |
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| 194 | } |
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| 195 | } |
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| 196 | } |
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| 197 | |||
| 198 | blend->rt[i].writemask = templ->rt[0].colormask; |
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| 199 | } |
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| 200 | |||
| 201 | return blend; |
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| 202 | } |
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| 203 | |||
| 204 | static void svga_bind_blend_state(struct pipe_context *pipe, |
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| 205 | void *blend) |
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| 206 | { |
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| 207 | struct svga_context *svga = svga_context(pipe); |
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| 208 | |||
| 209 | svga->curr.blend = (struct svga_blend_state*)blend; |
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| 210 | svga->dirty |= SVGA_NEW_BLEND; |
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| 211 | } |
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| 212 | |||
| 213 | |||
| 214 | static void svga_delete_blend_state(struct pipe_context *pipe, void *blend) |
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| 215 | { |
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| 216 | FREE(blend); |
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| 217 | } |
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| 218 | |||
| 219 | static void svga_set_blend_color( struct pipe_context *pipe, |
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| 220 | const struct pipe_blend_color *blend_color ) |
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| 221 | { |
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| 222 | struct svga_context *svga = svga_context(pipe); |
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| 223 | |||
| 224 | svga->curr.blend_color = *blend_color; |
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| 225 | |||
| 226 | svga->dirty |= SVGA_NEW_BLEND_COLOR; |
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| 227 | } |
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| 228 | |||
| 229 | |||
| 230 | void svga_init_blend_functions( struct svga_context *svga ) |
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| 231 | { |
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| 232 | svga->pipe.create_blend_state = svga_create_blend_state; |
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| 233 | svga->pipe.bind_blend_state = svga_bind_blend_state; |
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| 234 | svga->pipe.delete_blend_state = svga_delete_blend_state; |
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| 235 | |||
| 236 | svga->pipe.set_blend_color = svga_set_blend_color; |
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| 237 | } |
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| 238 |