/* * Copyright © 2011 Intel Corporation * * 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 (including the next * paragraph) 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 "brw_context.h" #include "brw_state.h" #include "brw_defines.h" #include "brw_util.h" #include "main/macros.h" #include "main/fbobject.h" #include "intel_batchbuffer.h" static void upload_sbe(struct brw_context *brw) { struct gl_context *ctx = &brw->ctx; /* CACHE_NEW_WM_PROG */ uint32_t num_outputs = brw->wm.prog_data->num_varying_inputs; uint16_t attr_overrides[VARYING_SLOT_MAX]; uint32_t urb_entry_read_length; uint32_t point_sprite_enables; uint32_t flat_enables; uint32_t dw1 = GEN7_SBE_SWIZZLE_ENABLE | num_outputs << GEN7_SBE_NUM_OUTPUTS_SHIFT; /* _NEW_BUFFERS */ bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer); /* _NEW_POINT * * Window coordinates in an FBO are inverted, which means point * sprite origin must be inverted. */ if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo) dw1 |= GEN6_SF_POINT_SPRITE_LOWERLEFT; else dw1 |= GEN6_SF_POINT_SPRITE_UPPERLEFT; /* BRW_NEW_VUE_MAP_GEOM_OUT | BRW_NEW_FRAGMENT_PROGRAM | * _NEW_POINT | _NEW_LIGHT | _NEW_PROGRAM | CACHE_NEW_WM_PROG */ calculate_attr_overrides(brw, attr_overrides, &point_sprite_enables, &flat_enables, &urb_entry_read_length); /* Typically, the URB entry read length and offset should be programmed in * 3DSTATE_VS and 3DSTATE_GS; SBE inherits it from the last active stage * which produces geometry. However, we don't know the proper value until * we call calculate_attr_overrides(). * * To fit with our existing code, we override the inherited values and * specify it here directly, as we did on previous generations. */ dw1 |= urb_entry_read_length << GEN7_SBE_URB_ENTRY_READ_LENGTH_SHIFT | BRW_SF_URB_ENTRY_READ_OFFSET << GEN8_SBE_URB_ENTRY_READ_OFFSET_SHIFT | GEN8_SBE_FORCE_URB_ENTRY_READ_LENGTH | GEN8_SBE_FORCE_URB_ENTRY_READ_OFFSET; BEGIN_BATCH(4); OUT_BATCH(_3DSTATE_SBE << 16 | (4 - 2)); OUT_BATCH(dw1); OUT_BATCH(point_sprite_enables); OUT_BATCH(flat_enables); ADVANCE_BATCH(); BEGIN_BATCH(11); OUT_BATCH(_3DSTATE_SBE_SWIZ << 16 | (11 - 2)); /* Output DWords 1 through 8: */ for (int i = 0; i < 8; i++) { OUT_BATCH(attr_overrides[i * 2] | attr_overrides[i * 2 + 1] << 16); } OUT_BATCH(0); /* wrapshortest enables 0-7 */ OUT_BATCH(0); /* wrapshortest enables 8-15 */ ADVANCE_BATCH(); } const struct brw_tracked_state gen8_sbe_state = { .dirty = { .mesa = _NEW_BUFFERS | _NEW_LIGHT | _NEW_POINT | _NEW_PROGRAM, .brw = BRW_NEW_CONTEXT | BRW_NEW_FRAGMENT_PROGRAM | BRW_NEW_VUE_MAP_GEOM_OUT, .cache = CACHE_NEW_WM_PROG, }, .emit = upload_sbe, }; static void upload_sf(struct brw_context *brw) { struct gl_context *ctx = &brw->ctx; uint32_t dw1 = 0, dw2 = 0, dw3 = 0; float point_size; dw1 = GEN6_SF_STATISTICS_ENABLE; if (brw->sf.viewport_transform_enable) dw1 |= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE; /* _NEW_LINE */ uint32_t line_width_u3_7 = U_FIXED(CLAMP(ctx->Line.Width, 0.0, 7.99), 7); if (line_width_u3_7 == 0) line_width_u3_7 = 1; dw2 |= line_width_u3_7 << GEN6_SF_LINE_WIDTH_SHIFT; if (ctx->Line.SmoothFlag) { dw2 |= GEN6_SF_LINE_END_CAP_WIDTH_1_0; } /* Clamp to ARB_point_parameters user limits */ point_size = CLAMP(ctx->Point.Size, ctx->Point.MinSize, ctx->Point.MaxSize); /* Clamp to the hardware limits and convert to fixed point */ dw3 |= U_FIXED(CLAMP(point_size, 0.125, 255.875), 3); /* _NEW_PROGRAM | _NEW_POINT */ if (!(ctx->VertexProgram.PointSizeEnabled || ctx->Point._Attenuated)) dw3 |= GEN6_SF_USE_STATE_POINT_WIDTH; /* _NEW_POINT | _NEW_MULTISAMPLE */ if ((ctx->Point.SmoothFlag || ctx->Multisample._Enabled) && !ctx->Point.PointSprite) { dw3 |= GEN8_SF_SMOOTH_POINT_ENABLE; } dw3 |= GEN6_SF_LINE_AA_MODE_TRUE; /* _NEW_LIGHT */ if (ctx->Light.ProvokingVertex != GL_FIRST_VERTEX_CONVENTION) { dw3 |= (2 << GEN6_SF_TRI_PROVOKE_SHIFT) | (2 << GEN6_SF_TRIFAN_PROVOKE_SHIFT) | (1 << GEN6_SF_LINE_PROVOKE_SHIFT); } else { dw3 |= (1 << GEN6_SF_TRIFAN_PROVOKE_SHIFT); } BEGIN_BATCH(4); OUT_BATCH(_3DSTATE_SF << 16 | (4 - 2)); OUT_BATCH(dw1); OUT_BATCH(dw2); OUT_BATCH(dw3); ADVANCE_BATCH(); } const struct brw_tracked_state gen8_sf_state = { .dirty = { .mesa = _NEW_LIGHT | _NEW_PROGRAM | _NEW_LINE | _NEW_MULTISAMPLE | _NEW_POINT, .brw = BRW_NEW_CONTEXT, .cache = 0, }, .emit = upload_sf, }; static void upload_raster(struct brw_context *brw) { struct gl_context *ctx = &brw->ctx; uint32_t dw1 = 0; /* _NEW_BUFFERS */ bool render_to_fbo = _mesa_is_user_fbo(brw->ctx.DrawBuffer); /* _NEW_POLYGON */ if ((ctx->Polygon.FrontFace == GL_CCW) ^ render_to_fbo) dw1 |= GEN8_RASTER_FRONT_WINDING_CCW; if (ctx->Polygon.CullFlag) { switch (ctx->Polygon.CullFaceMode) { case GL_FRONT: dw1 |= GEN8_RASTER_CULL_FRONT; break; case GL_BACK: dw1 |= GEN8_RASTER_CULL_BACK; break; case GL_FRONT_AND_BACK: dw1 |= GEN8_RASTER_CULL_BOTH; break; default: unreachable("not reached"); } } else { dw1 |= GEN8_RASTER_CULL_NONE; } /* _NEW_POINT */ if (ctx->Point.SmoothFlag) dw1 |= GEN8_RASTER_SMOOTH_POINT_ENABLE; if (ctx->Multisample._Enabled) dw1 |= GEN8_RASTER_API_MULTISAMPLE_ENABLE; if (ctx->Polygon.OffsetFill) dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_SOLID; if (ctx->Polygon.OffsetLine) dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_WIREFRAME; if (ctx->Polygon.OffsetPoint) dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_POINT; switch (ctx->Polygon.FrontMode) { case GL_FILL: dw1 |= GEN6_SF_FRONT_SOLID; break; case GL_LINE: dw1 |= GEN6_SF_FRONT_WIREFRAME; break; case GL_POINT: dw1 |= GEN6_SF_FRONT_POINT; break; default: unreachable("not reached"); } switch (ctx->Polygon.BackMode) { case GL_FILL: dw1 |= GEN6_SF_BACK_SOLID; break; case GL_LINE: dw1 |= GEN6_SF_BACK_WIREFRAME; break; case GL_POINT: dw1 |= GEN6_SF_BACK_POINT; break; default: unreachable("not reached"); } /* _NEW_LINE */ if (ctx->Line.SmoothFlag) dw1 |= GEN8_RASTER_LINE_AA_ENABLE; /* _NEW_SCISSOR */ if (ctx->Scissor.EnableFlags) dw1 |= GEN8_RASTER_SCISSOR_ENABLE; /* _NEW_TRANSFORM */ if (!ctx->Transform.DepthClamp) dw1 |= GEN8_RASTER_VIEWPORT_Z_CLIP_TEST_ENABLE; BEGIN_BATCH(5); OUT_BATCH(_3DSTATE_RASTER << 16 | (5 - 2)); OUT_BATCH(dw1); OUT_BATCH_F(ctx->Polygon.OffsetUnits * 2); /* constant. copied from gen4 */ OUT_BATCH_F(ctx->Polygon.OffsetFactor); /* scale */ OUT_BATCH_F(0.0); ADVANCE_BATCH(); } const struct brw_tracked_state gen8_raster_state = { .dirty = { .mesa = _NEW_BUFFERS | _NEW_LINE | _NEW_MULTISAMPLE | _NEW_POINT | _NEW_POLYGON | _NEW_SCISSOR | _NEW_TRANSFORM, .brw = BRW_NEW_CONTEXT, .cache = 0, }, .emit = upload_raster, };