| /* |
| * 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 "intel_batchbuffer.h" |
| #include "main/fbobject.h" |
| |
| static void |
| gen7_upload_sf_clip_viewport(struct brw_context *brw) |
| { |
| struct intel_context *intel = &brw->intel; |
| struct gl_context *ctx = &intel->ctx; |
| const GLfloat depth_scale = 1.0F / ctx->DrawBuffer->_DepthMaxF; |
| GLfloat y_scale, y_bias; |
| const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer); |
| const GLfloat *v = ctx->Viewport._WindowMap.m; |
| struct gen7_sf_clip_viewport *vp; |
| |
| vp = brw_state_batch(brw, AUB_TRACE_SF_VP_STATE, |
| sizeof(*vp), 64, &brw->sf.vp_offset); |
| /* Also assign to clip.vp_offset in case something uses it. */ |
| brw->clip.vp_offset = brw->sf.vp_offset; |
| |
| /* Disable guardband clipping (see gen6_viewport_state.c for rationale). */ |
| vp->guardband.xmin = -1.0; |
| vp->guardband.xmax = 1.0; |
| vp->guardband.ymin = -1.0; |
| vp->guardband.ymax = 1.0; |
| |
| /* _NEW_BUFFERS */ |
| if (render_to_fbo) { |
| y_scale = 1.0; |
| y_bias = 0; |
| } else { |
| y_scale = -1.0; |
| y_bias = ctx->DrawBuffer->Height; |
| } |
| |
| /* _NEW_VIEWPORT */ |
| vp->viewport.m00 = v[MAT_SX]; |
| vp->viewport.m11 = v[MAT_SY] * y_scale; |
| vp->viewport.m22 = v[MAT_SZ] * depth_scale; |
| vp->viewport.m30 = v[MAT_TX]; |
| vp->viewport.m31 = v[MAT_TY] * y_scale + y_bias; |
| vp->viewport.m32 = v[MAT_TZ] * depth_scale; |
| |
| BEGIN_BATCH(2); |
| OUT_BATCH(_3DSTATE_VIEWPORT_STATE_POINTERS_SF_CL << 16 | (2 - 2)); |
| OUT_BATCH(brw->sf.vp_offset); |
| ADVANCE_BATCH(); |
| } |
| |
| const struct brw_tracked_state gen7_sf_clip_viewport = { |
| .dirty = { |
| .mesa = _NEW_VIEWPORT | _NEW_BUFFERS, |
| .brw = BRW_NEW_BATCH, |
| .cache = 0, |
| }, |
| .emit = gen7_upload_sf_clip_viewport, |
| }; |
| |
| /* ----------------------------------------------------- */ |
| |
| static void upload_cc_viewport_state_pointer(struct brw_context *brw) |
| { |
| struct intel_context *intel = &brw->intel; |
| |
| BEGIN_BATCH(2); |
| OUT_BATCH(_3DSTATE_VIEWPORT_STATE_POINTERS_CC << 16 | (2 - 2)); |
| OUT_BATCH(brw->cc.vp_offset); |
| ADVANCE_BATCH(); |
| } |
| |
| const struct brw_tracked_state gen7_cc_viewport_state_pointer = { |
| .dirty = { |
| .mesa = 0, |
| .brw = BRW_NEW_BATCH, |
| .cache = CACHE_NEW_CC_VP |
| }, |
| .emit = upload_cc_viewport_state_pointer, |
| }; |