+++ /dev/null
-/*
- * Copyright © 2009 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.
- *
- * Authors:
- * Eric Anholt <eric@anholt.net>
- *
- */
-
-#include "brw_context.h"
-#include "brw_state.h"
-#include "brw_defines.h"
-#include "intel_batchbuffer.h"
-#include "main/fbobject.h"
-#include "main/framebuffer.h"
-
-static void
-gen6_upload_scissor_state(struct brw_context *brw)
-{
- struct gl_context *ctx = &brw->ctx;
- const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
- struct gen6_scissor_rect *scissor;
- uint32_t scissor_state_offset;
- const unsigned int fb_width= _mesa_geometric_width(ctx->DrawBuffer);
- const unsigned int fb_height = _mesa_geometric_height(ctx->DrawBuffer);
-
- /* BRW_NEW_VIEWPORT_COUNT */
- const unsigned viewport_count = brw->clip.viewport_count;
-
- scissor = brw_state_batch(brw, sizeof(*scissor) * viewport_count, 32,
- &scissor_state_offset);
-
- /* _NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT */
-
- /* The scissor only needs to handle the intersection of drawable and
- * scissor rect. Clipping to the boundaries of static shared buffers
- * for front/back/depth is covered by looping over cliprects in brw_draw.c.
- *
- * Note that the hardware's coordinates are inclusive, while Mesa's min is
- * inclusive but max is exclusive.
- */
- for (unsigned i = 0; i < viewport_count; i++) {
- int bbox[4];
-
- bbox[0] = MAX2(ctx->ViewportArray[i].X, 0);
- bbox[1] = MIN2(bbox[0] + ctx->ViewportArray[i].Width, fb_width);
- bbox[2] = MAX2(ctx->ViewportArray[i].Y, 0);
- bbox[3] = MIN2(bbox[2] + ctx->ViewportArray[i].Height, fb_height);
- _mesa_intersect_scissor_bounding_box(ctx, i, bbox);
-
- if (bbox[0] == bbox[1] || bbox[2] == bbox[3]) {
- /* If the scissor was out of bounds and got clamped to 0 width/height
- * at the bounds, the subtraction of 1 from maximums could produce a
- * negative number and thus not clip anything. Instead, just provide
- * a min > max scissor inside the bounds, which produces the expected
- * no rendering.
- */
- scissor[i].xmin = 1;
- scissor[i].xmax = 0;
- scissor[i].ymin = 1;
- scissor[i].ymax = 0;
- } else if (render_to_fbo) {
- /* texmemory: Y=0=bottom */
- scissor[i].xmin = bbox[0];
- scissor[i].xmax = bbox[1] - 1;
- scissor[i].ymin = bbox[2];
- scissor[i].ymax = bbox[3] - 1;
- }
- else {
- /* memory: Y=0=top */
- scissor[i].xmin = bbox[0];
- scissor[i].xmax = bbox[1] - 1;
- scissor[i].ymin = fb_height - bbox[3];
- scissor[i].ymax = fb_height - bbox[2] - 1;
- }
- }
- BEGIN_BATCH(2);
- OUT_BATCH(_3DSTATE_SCISSOR_STATE_POINTERS << 16 | (2 - 2));
- OUT_BATCH(scissor_state_offset);
- ADVANCE_BATCH();
-}
-
-const struct brw_tracked_state gen6_scissor_state = {
- .dirty = {
- .mesa = _NEW_BUFFERS |
- _NEW_SCISSOR |
- _NEW_VIEWPORT,
- .brw = BRW_NEW_BATCH |
- BRW_NEW_BLORP |
- BRW_NEW_VIEWPORT_COUNT,
- },
- .emit = gen6_upload_scissor_state,
-};
.emit = genX(upload_blend_state),
};
+/* ---------------------------------------------------------------------- */
+
+static void
+genX(upload_scissor_state)(struct brw_context *brw)
+{
+ struct gl_context *ctx = &brw->ctx;
+ const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
+ struct GENX(SCISSOR_RECT) scissor;
+ uint32_t scissor_state_offset;
+ const unsigned int fb_width = _mesa_geometric_width(ctx->DrawBuffer);
+ const unsigned int fb_height = _mesa_geometric_height(ctx->DrawBuffer);
+ uint32_t *scissor_map;
+
+ /* BRW_NEW_VIEWPORT_COUNT */
+ const unsigned viewport_count = brw->clip.viewport_count;
+
+ scissor_map = brw_state_batch(
+ brw, GENX(SCISSOR_RECT_length) * sizeof(uint32_t) * viewport_count,
+ 32, &scissor_state_offset);
+
+ /* _NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT */
+
+ /* The scissor only needs to handle the intersection of drawable and
+ * scissor rect. Clipping to the boundaries of static shared buffers
+ * for front/back/depth is covered by looping over cliprects in brw_draw.c.
+ *
+ * Note that the hardware's coordinates are inclusive, while Mesa's min is
+ * inclusive but max is exclusive.
+ */
+ for (unsigned i = 0; i < viewport_count; i++) {
+ int bbox[4];
+
+ bbox[0] = MAX2(ctx->ViewportArray[i].X, 0);
+ bbox[1] = MIN2(bbox[0] + ctx->ViewportArray[i].Width, fb_width);
+ bbox[2] = MAX2(ctx->ViewportArray[i].Y, 0);
+ bbox[3] = MIN2(bbox[2] + ctx->ViewportArray[i].Height, fb_height);
+ _mesa_intersect_scissor_bounding_box(ctx, i, bbox);
+
+ if (bbox[0] == bbox[1] || bbox[2] == bbox[3]) {
+ /* If the scissor was out of bounds and got clamped to 0 width/height
+ * at the bounds, the subtraction of 1 from maximums could produce a
+ * negative number and thus not clip anything. Instead, just provide
+ * a min > max scissor inside the bounds, which produces the expected
+ * no rendering.
+ */
+ scissor.ScissorRectangleXMin = 1;
+ scissor.ScissorRectangleXMax = 0;
+ scissor.ScissorRectangleYMin = 1;
+ scissor.ScissorRectangleYMax = 0;
+ } else if (render_to_fbo) {
+ /* texmemory: Y=0=bottom */
+ scissor.ScissorRectangleXMin = bbox[0];
+ scissor.ScissorRectangleXMax = bbox[1] - 1;
+ scissor.ScissorRectangleYMin = bbox[2];
+ scissor.ScissorRectangleYMax = bbox[3] - 1;
+ } else {
+ /* memory: Y=0=top */
+ scissor.ScissorRectangleXMin = bbox[0];
+ scissor.ScissorRectangleXMax = bbox[1] - 1;
+ scissor.ScissorRectangleYMin = fb_height - bbox[3];
+ scissor.ScissorRectangleYMax = fb_height - bbox[2] - 1;
+ }
+
+ GENX(SCISSOR_RECT_pack)(
+ NULL, scissor_map + i * GENX(SCISSOR_RECT_length), &scissor);
+ }
+
+ brw_batch_emit(brw, GENX(3DSTATE_SCISSOR_STATE_POINTERS), ptr) {
+ ptr.ScissorRectPointer = scissor_state_offset;
+ }
+}
+
+static const struct brw_tracked_state genX(scissor_state) = {
+ .dirty = {
+ .mesa = _NEW_BUFFERS |
+ _NEW_SCISSOR |
+ _NEW_VIEWPORT,
+ .brw = BRW_NEW_BATCH |
+ BRW_NEW_BLORP |
+ BRW_NEW_VIEWPORT_COUNT,
+ },
+ .emit = genX(upload_scissor_state),
+};
+
#endif
/* ---------------------------------------------------------------------- */
&genX(sf_state),
&genX(wm_state),
- &gen6_scissor_state,
+ &genX(scissor_state),
&gen6_binding_table_pointers,
&genX(wm_state),
&genX(ps_state),
- &gen6_scissor_state,
+ &genX(scissor_state),
&gen7_depthbuffer,
&genX(depth_stencil_state),
&genX(wm_state),
- &gen6_scissor_state,
+ &genX(scissor_state),
&gen7_depthbuffer,
projects / mesa.git / commitdiff