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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5564 | serge | 1 | /* |
| 2 | * Copyright © 2011 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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| 21 | * IN THE SOFTWARE. |
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| 22 | */ |
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| 23 | |||
| 24 | #include "brw_context.h" |
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| 25 | #include "brw_state.h" |
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| 26 | #include "brw_defines.h" |
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| 27 | #include "brw_util.h" |
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| 28 | #include "main/macros.h" |
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| 29 | #include "main/fbobject.h" |
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| 30 | #include "intel_batchbuffer.h" |
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| 31 | |||
| 32 | static void |
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| 33 | upload_sbe_state(struct brw_context *brw) |
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| 34 | { |
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| 35 | struct gl_context *ctx = &brw->ctx; |
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| 36 | /* BRW_NEW_FS_PROG_DATA */ |
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| 37 | uint32_t num_outputs = brw->wm.prog_data->num_varying_inputs; |
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| 38 | uint32_t dw1; |
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| 39 | uint32_t point_sprite_enables; |
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| 40 | uint32_t flat_enables; |
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| 41 | int i; |
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| 42 | const int urb_entry_read_offset = BRW_SF_URB_ENTRY_READ_OFFSET; |
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| 43 | uint16_t attr_overrides[16]; |
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| 44 | /* _NEW_BUFFERS */ |
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| 45 | bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer); |
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| 46 | uint32_t point_sprite_origin; |
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| 47 | |||
| 48 | /* FINISHME: Attribute Swizzle Control Mode? */ |
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| 49 | dw1 = GEN7_SBE_SWIZZLE_ENABLE | num_outputs << GEN7_SBE_NUM_OUTPUTS_SHIFT; |
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| 50 | |||
| 51 | /* _NEW_POINT |
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| 52 | * |
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| 53 | * Window coordinates in an FBO are inverted, which means point |
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| 54 | * sprite origin must be inverted. |
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| 55 | */ |
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| 56 | if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo) { |
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| 57 | point_sprite_origin = GEN6_SF_POINT_SPRITE_LOWERLEFT; |
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| 58 | } else { |
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| 59 | point_sprite_origin = GEN6_SF_POINT_SPRITE_UPPERLEFT; |
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| 60 | } |
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| 61 | dw1 |= point_sprite_origin; |
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| 62 | |||
| 63 | /* BRW_NEW_VUE_MAP_GEOM_OUT | BRW_NEW_FRAGMENT_PROGRAM |
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| 64 | * _NEW_POINT | _NEW_LIGHT | _NEW_PROGRAM | BRW_NEW_FS_PROG_DATA |
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| 65 | */ |
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| 66 | uint32_t urb_entry_read_length; |
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| 67 | calculate_attr_overrides(brw, attr_overrides, &point_sprite_enables, |
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| 68 | &flat_enables, &urb_entry_read_length); |
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| 69 | dw1 |= urb_entry_read_length << GEN7_SBE_URB_ENTRY_READ_LENGTH_SHIFT | |
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| 70 | urb_entry_read_offset << GEN7_SBE_URB_ENTRY_READ_OFFSET_SHIFT; |
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| 71 | |||
| 72 | BEGIN_BATCH(14); |
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| 73 | OUT_BATCH(_3DSTATE_SBE << 16 | (14 - 2)); |
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| 74 | OUT_BATCH(dw1); |
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| 75 | |||
| 76 | /* Output dwords 2 through 9 */ |
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| 77 | for (i = 0; i < 8; i++) { |
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| 78 | OUT_BATCH(attr_overrides[i * 2] | attr_overrides[i * 2 + 1] << 16); |
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| 79 | } |
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| 80 | |||
| 81 | OUT_BATCH(point_sprite_enables); /* dw10 */ |
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| 82 | OUT_BATCH(flat_enables); |
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| 83 | OUT_BATCH(0); /* wrapshortest enables 0-7 */ |
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| 84 | OUT_BATCH(0); /* wrapshortest enables 8-15 */ |
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| 85 | ADVANCE_BATCH(); |
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| 86 | } |
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| 87 | |||
| 88 | const struct brw_tracked_state gen7_sbe_state = { |
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| 89 | .dirty = { |
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| 90 | .mesa = _NEW_BUFFERS | |
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| 91 | _NEW_LIGHT | |
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| 92 | _NEW_POINT | |
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| 93 | _NEW_PROGRAM, |
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| 94 | .brw = BRW_NEW_CONTEXT | |
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| 95 | BRW_NEW_FRAGMENT_PROGRAM | |
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| 96 | BRW_NEW_FS_PROG_DATA | |
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| 97 | BRW_NEW_GEOMETRY_PROGRAM | |
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| 98 | BRW_NEW_PRIMITIVE | |
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| 99 | BRW_NEW_VUE_MAP_GEOM_OUT, |
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| 100 | }, |
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| 101 | .emit = upload_sbe_state, |
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| 102 | }; |
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| 103 | |||
| 104 | static void |
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| 105 | upload_sf_state(struct brw_context *brw) |
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| 106 | { |
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| 107 | struct gl_context *ctx = &brw->ctx; |
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| 108 | uint32_t dw1, dw2, dw3; |
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| 109 | float point_size; |
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| 110 | /* _NEW_BUFFERS */ |
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| 111 | bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer); |
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| 112 | bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1; |
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| 113 | |||
| 114 | dw1 = GEN6_SF_STATISTICS_ENABLE; |
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| 115 | |||
| 116 | if (brw->sf.viewport_transform_enable) |
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| 117 | dw1 |= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE; |
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| 118 | |||
| 119 | /* _NEW_BUFFERS */ |
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| 120 | dw1 |= (brw_depthbuffer_format(brw) << GEN7_SF_DEPTH_BUFFER_SURFACE_FORMAT_SHIFT); |
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| 121 | |||
| 122 | /* _NEW_POLYGON */ |
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| 123 | if (ctx->Polygon._FrontBit == render_to_fbo) |
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| 124 | dw1 |= GEN6_SF_WINDING_CCW; |
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| 125 | |||
| 126 | if (ctx->Polygon.OffsetFill) |
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| 127 | dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_SOLID; |
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| 128 | |||
| 129 | if (ctx->Polygon.OffsetLine) |
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| 130 | dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_WIREFRAME; |
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| 131 | |||
| 132 | if (ctx->Polygon.OffsetPoint) |
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| 133 | dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_POINT; |
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| 134 | |||
| 135 | switch (ctx->Polygon.FrontMode) { |
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| 136 | case GL_FILL: |
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| 137 | dw1 |= GEN6_SF_FRONT_SOLID; |
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| 138 | break; |
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| 139 | |||
| 140 | case GL_LINE: |
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| 141 | dw1 |= GEN6_SF_FRONT_WIREFRAME; |
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| 142 | break; |
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| 143 | |||
| 144 | case GL_POINT: |
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| 145 | dw1 |= GEN6_SF_FRONT_POINT; |
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| 146 | break; |
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| 147 | |||
| 148 | default: |
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| 149 | unreachable("not reached"); |
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| 150 | } |
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| 151 | |||
| 152 | switch (ctx->Polygon.BackMode) { |
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| 153 | case GL_FILL: |
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| 154 | dw1 |= GEN6_SF_BACK_SOLID; |
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| 155 | break; |
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| 156 | |||
| 157 | case GL_LINE: |
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| 158 | dw1 |= GEN6_SF_BACK_WIREFRAME; |
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| 159 | break; |
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| 160 | |||
| 161 | case GL_POINT: |
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| 162 | dw1 |= GEN6_SF_BACK_POINT; |
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| 163 | break; |
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| 164 | |||
| 165 | default: |
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| 166 | unreachable("not reached"); |
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| 167 | } |
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| 168 | |||
| 169 | dw2 = 0; |
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| 170 | |||
| 171 | if (ctx->Polygon.CullFlag) { |
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| 172 | switch (ctx->Polygon.CullFaceMode) { |
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| 173 | case GL_FRONT: |
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| 174 | dw2 |= GEN6_SF_CULL_FRONT; |
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| 175 | break; |
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| 176 | case GL_BACK: |
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| 177 | dw2 |= GEN6_SF_CULL_BACK; |
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| 178 | break; |
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| 179 | case GL_FRONT_AND_BACK: |
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| 180 | dw2 |= GEN6_SF_CULL_BOTH; |
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| 181 | break; |
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| 182 | default: |
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| 183 | unreachable("not reached"); |
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| 184 | } |
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| 185 | } else { |
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| 186 | dw2 |= GEN6_SF_CULL_NONE; |
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| 187 | } |
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| 188 | |||
| 189 | /* _NEW_SCISSOR */ |
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| 190 | if (ctx->Scissor.EnableFlags) |
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| 191 | dw2 |= GEN6_SF_SCISSOR_ENABLE; |
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| 192 | |||
| 193 | /* _NEW_LINE */ |
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| 194 | { |
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| 195 | /* OpenGL dictates that line width should be rounded to the nearest |
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| 196 | * integer |
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| 197 | */ |
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| 198 | float line_width = |
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| 199 | roundf(CLAMP(ctx->Line.Width, 0.0, ctx->Const.MaxLineWidth)); |
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| 200 | uint32_t line_width_u3_7 = U_FIXED(line_width, 7); |
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| 201 | /* Line width of 0 is not allowed when MSAA enabled */ |
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| 202 | if (ctx->Multisample._Enabled) { |
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| 203 | if (line_width_u3_7 == 0) |
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| 204 | line_width_u3_7 = 1; |
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| 205 | } else if (ctx->Line.SmoothFlag && ctx->Line.Width < 1.5) { |
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| 206 | /* For 1 pixel line thickness or less, the general |
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| 207 | * anti-aliasing algorithm gives up, and a garbage line is |
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| 208 | * generated. Setting a Line Width of 0.0 specifies the |
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| 209 | * rasterization of the "thinnest" (one-pixel-wide), |
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| 210 | * non-antialiased lines. |
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| 211 | * |
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| 212 | * Lines rendered with zero Line Width are rasterized using |
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| 213 | * Grid Intersection Quantization rules as specified by |
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| 214 | * bspec section 6.3.12.1 Zero-Width (Cosmetic) Line |
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| 215 | * Rasterization. |
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| 216 | */ |
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| 217 | line_width_u3_7 = 0; |
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| 218 | } |
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| 219 | dw2 |= line_width_u3_7 << GEN6_SF_LINE_WIDTH_SHIFT; |
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| 220 | } |
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| 221 | if (ctx->Line.SmoothFlag) { |
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| 222 | dw2 |= GEN6_SF_LINE_AA_ENABLE; |
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| 223 | dw2 |= GEN6_SF_LINE_END_CAP_WIDTH_1_0; |
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| 224 | } |
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| 225 | if (ctx->Line.StippleFlag && brw->is_haswell) { |
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| 226 | dw2 |= HSW_SF_LINE_STIPPLE_ENABLE; |
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| 227 | } |
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| 228 | /* _NEW_MULTISAMPLE */ |
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| 229 | if (multisampled_fbo && ctx->Multisample.Enabled) |
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| 230 | dw2 |= GEN6_SF_MSRAST_ON_PATTERN; |
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| 231 | |||
| 232 | /* FINISHME: Last Pixel Enable? Vertex Sub Pixel Precision Select? |
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| 233 | */ |
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| 234 | |||
| 235 | dw3 = GEN6_SF_LINE_AA_MODE_TRUE; |
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| 236 | |||
| 237 | /* _NEW_PROGRAM | _NEW_POINT */ |
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| 238 | if (!(ctx->VertexProgram.PointSizeEnabled || ctx->Point._Attenuated)) |
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| 239 | dw3 |= GEN6_SF_USE_STATE_POINT_WIDTH; |
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| 240 | |||
| 241 | /* Clamp to ARB_point_parameters user limits */ |
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| 242 | point_size = CLAMP(ctx->Point.Size, ctx->Point.MinSize, ctx->Point.MaxSize); |
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| 243 | |||
| 244 | /* Clamp to the hardware limits and convert to fixed point */ |
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| 245 | dw3 |= U_FIXED(CLAMP(point_size, 0.125, 255.875), 3); |
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| 246 | |||
| 247 | /* _NEW_LIGHT */ |
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| 248 | if (ctx->Light.ProvokingVertex != GL_FIRST_VERTEX_CONVENTION) { |
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| 249 | dw3 |= |
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| 250 | (2 << GEN6_SF_TRI_PROVOKE_SHIFT) | |
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| 251 | (2 << GEN6_SF_TRIFAN_PROVOKE_SHIFT) | |
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| 252 | (1 << GEN6_SF_LINE_PROVOKE_SHIFT); |
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| 253 | } else { |
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| 254 | dw3 |= (1 << GEN6_SF_TRIFAN_PROVOKE_SHIFT); |
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| 255 | } |
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| 256 | |||
| 257 | BEGIN_BATCH(7); |
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| 258 | OUT_BATCH(_3DSTATE_SF << 16 | (7 - 2)); |
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| 259 | OUT_BATCH(dw1); |
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| 260 | OUT_BATCH(dw2); |
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| 261 | OUT_BATCH(dw3); |
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| 262 | OUT_BATCH_F(ctx->Polygon.OffsetUnits * 2); /* constant. copied from gen4 */ |
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| 263 | OUT_BATCH_F(ctx->Polygon.OffsetFactor); /* scale */ |
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| 264 | OUT_BATCH_F(ctx->Polygon.OffsetClamp); /* global depth offset clamp */ |
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| 265 | ADVANCE_BATCH(); |
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| 266 | } |
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| 267 | |||
| 268 | const struct brw_tracked_state gen7_sf_state = { |
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| 269 | .dirty = { |
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| 270 | .mesa = _NEW_BUFFERS | |
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| 271 | _NEW_LIGHT | |
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| 272 | _NEW_LINE | |
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| 273 | _NEW_MULTISAMPLE | |
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| 274 | _NEW_POINT | |
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| 275 | _NEW_POLYGON | |
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| 276 | _NEW_PROGRAM | |
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| 277 | _NEW_SCISSOR, |
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| 278 | .brw = BRW_NEW_CONTEXT, |
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| 279 | }, |
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| 280 | .emit = upload_sf_state, |
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| 281 | }; |