radeonsi: move r600_viewport.c to si_viewport.c

This is purely a file-move + #include fixup + build system changes.
Other cleanups will follow in subsequent commits.

Reviewed-by: Marek Olšák <[email protected]>

2 files changed, 0 insertions, 451 deletions

diff --git a/src/gallium/drivers/radeon/Makefile.sources b/src/gallium/drivers/radeon/Makefile.sources
index f4e817e56ef..5d38bb36b44 100644
--- a/src/gallium/drivers/radeon/Makefile.sources
+++ b/src/gallium/drivers/radeon/Makefile.sources
@@ -11,7 +11,6 @@ C_SOURCES := \
 	r600_streamout.c \
 	r600_test_dma.c \
 	r600_texture.c \
-	r600_viewport.c \
 	radeon_uvd.c \
 	radeon_uvd.h \
 	radeon_vcn_dec.c \
diff --git a/src/gallium/drivers/radeon/r600_viewport.c b/src/gallium/drivers/radeon/r600_viewport.c
deleted file mode 100644
index 6e4fc9d751c..00000000000
--- a/src/gallium/drivers/radeon/r600_viewport.c
+++ /dev/null
@@ -1,450 +0,0 @@
-/*
- * Copyright 2012 Advanced Micro Devices, Inc.
- *
- * 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
- * on the rights to use, copy, modify, merge, publish, distribute, sub
- * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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 "r600_cs.h"
-#include "util/u_viewport.h"
-#include "tgsi/tgsi_scan.h"
-
-#define GET_MAX_SCISSOR(rctx) (rctx->chip_class >= EVERGREEN ? 16384 : 8192)
-
-static void r600_set_scissor_states(struct pipe_context *ctx,
-				    unsigned start_slot,
-				    unsigned num_scissors,
-				    const struct pipe_scissor_state *state)
-{
-	struct r600_common_context *rctx = (struct r600_common_context *)ctx;
-	int i;
-
-	for (i = 0; i < num_scissors; i++)
-		rctx->scissors.states[start_slot + i] = state[i];
-
-	if (!rctx->scissor_enabled)
-		return;
-
-	rctx->scissors.dirty_mask |= ((1 << num_scissors) - 1) << start_slot;
-	rctx->set_atom_dirty(rctx, &rctx->scissors.atom, true);
-}
-
-/* Since the guard band disables clipping, we have to clip per-pixel
- * using a scissor.
- */
-static void r600_get_scissor_from_viewport(struct r600_common_context *rctx,
-					   const struct pipe_viewport_state *vp,
-					   struct r600_signed_scissor *scissor)
-{
-	float tmp, minx, miny, maxx, maxy;
-
-	/* Convert (-1, -1) and (1, 1) from clip space into window space. */
-	minx = -vp->scale[0] + vp->translate[0];
-	miny = -vp->scale[1] + vp->translate[1];
-	maxx = vp->scale[0] + vp->translate[0];
-	maxy = vp->scale[1] + vp->translate[1];
-
-	/* r600_draw_rectangle sets this. Disable the scissor. */
-	if (minx == -1 && miny == -1 && maxx == 1 && maxy == 1) {
-		scissor->minx = scissor->miny = 0;
-		scissor->maxx = scissor->maxy = GET_MAX_SCISSOR(rctx);
-		return;
-	}
-
-	/* Handle inverted viewports. */
-	if (minx > maxx) {
-		tmp = minx;
-		minx = maxx;
-		maxx = tmp;
-	}
-	if (miny > maxy) {
-		tmp = miny;
-		miny = maxy;
-		maxy = tmp;
-	}
-
-	/* Convert to integer and round up the max bounds. */
-	scissor->minx = minx;
-	scissor->miny = miny;
-	scissor->maxx = ceilf(maxx);
-	scissor->maxy = ceilf(maxy);
-}
-
-static void r600_clamp_scissor(struct r600_common_context *rctx,
-			       struct pipe_scissor_state *out,
-			       struct r600_signed_scissor *scissor)
-{
-	unsigned max_scissor = GET_MAX_SCISSOR(rctx);
-	out->minx = CLAMP(scissor->minx, 0, max_scissor);
-	out->miny = CLAMP(scissor->miny, 0, max_scissor);
-	out->maxx = CLAMP(scissor->maxx, 0, max_scissor);
-	out->maxy = CLAMP(scissor->maxy, 0, max_scissor);
-}
-
-static void r600_clip_scissor(struct pipe_scissor_state *out,
-			      struct pipe_scissor_state *clip)
-{
-	out->minx = MAX2(out->minx, clip->minx);
-	out->miny = MAX2(out->miny, clip->miny);
-	out->maxx = MIN2(out->maxx, clip->maxx);
-	out->maxy = MIN2(out->maxy, clip->maxy);
-}
-
-static void r600_scissor_make_union(struct r600_signed_scissor *out,
-				    struct r600_signed_scissor *in)
-{
-	out->minx = MIN2(out->minx, in->minx);
-	out->miny = MIN2(out->miny, in->miny);
-	out->maxx = MAX2(out->maxx, in->maxx);
-	out->maxy = MAX2(out->maxy, in->maxy);
-}
-
-void si_apply_scissor_bug_workaround(struct r600_common_context *rctx,
-				     struct pipe_scissor_state *scissor)
-{
-	if (rctx->chip_class == EVERGREEN || rctx->chip_class == CAYMAN) {
-		if (scissor->maxx == 0)
-			scissor->minx = 1;
-		if (scissor->maxy == 0)
-			scissor->miny = 1;
-
-		if (rctx->chip_class == CAYMAN &&
-		    scissor->maxx == 1 && scissor->maxy == 1)
-			scissor->maxx = 2;
-	}
-}
-
-static void r600_emit_one_scissor(struct r600_common_context *rctx,
-				  struct radeon_winsys_cs *cs,
-				  struct r600_signed_scissor *vp_scissor,
-				  struct pipe_scissor_state *scissor)
-{
-	struct pipe_scissor_state final;
-
-	if (rctx->vs_disables_clipping_viewport) {
-		final.minx = final.miny = 0;
-		final.maxx = final.maxy = GET_MAX_SCISSOR(rctx);
-	} else {
-		r600_clamp_scissor(rctx, &final, vp_scissor);
-	}
-
-	if (scissor)
-		r600_clip_scissor(&final, scissor);
-
-	si_apply_scissor_bug_workaround(rctx, &final);
-
-	radeon_emit(cs, S_028250_TL_X(final.minx) |
-			S_028250_TL_Y(final.miny) |
-			S_028250_WINDOW_OFFSET_DISABLE(1));
-	radeon_emit(cs, S_028254_BR_X(final.maxx) |
-			S_028254_BR_Y(final.maxy));
-}
-
-/* the range is [-MAX, MAX] */
-#define GET_MAX_VIEWPORT_RANGE(rctx) (rctx->chip_class >= EVERGREEN ? 32768 : 16384)
-
-static void r600_emit_guardband(struct r600_common_context *rctx,
-				struct r600_signed_scissor *vp_as_scissor)
-{
-	struct radeon_winsys_cs *cs = rctx->gfx.cs;
-	struct pipe_viewport_state vp;
-	float left, top, right, bottom, max_range, guardband_x, guardband_y;
-	float discard_x, discard_y;
-
-	/* Reconstruct the viewport transformation from the scissor. */
-	vp.translate[0] = (vp_as_scissor->minx + vp_as_scissor->maxx) / 2.0;
-	vp.translate[1] = (vp_as_scissor->miny + vp_as_scissor->maxy) / 2.0;
-	vp.scale[0] = vp_as_scissor->maxx - vp.translate[0];
-	vp.scale[1] = vp_as_scissor->maxy - vp.translate[1];
-
-	/* Treat a 0x0 viewport as 1x1 to prevent division by zero. */
-	if (vp_as_scissor->minx == vp_as_scissor->maxx)
-		vp.scale[0] = 0.5;
-	if (vp_as_scissor->miny == vp_as_scissor->maxy)
-		vp.scale[1] = 0.5;
-
-	/* Find the biggest guard band that is inside the supported viewport
-	 * range. The guard band is specified as a horizontal and vertical
-	 * distance from (0,0) in clip space.
-	 *
-	 * This is done by applying the inverse viewport transformation
-	 * on the viewport limits to get those limits in clip space.
-	 *
-	 * Use a limit one pixel smaller to allow for some precision error.
-	 */
-	max_range = GET_MAX_VIEWPORT_RANGE(rctx) - 1;
-	left   = (-max_range - vp.translate[0]) / vp.scale[0];
-	right  = ( max_range - vp.translate[0]) / vp.scale[0];
-	top    = (-max_range - vp.translate[1]) / vp.scale[1];
-	bottom = ( max_range - vp.translate[1]) / vp.scale[1];
-
-	assert(left <= -1 && top <= -1 && right >= 1 && bottom >= 1);
-
-	guardband_x = MIN2(-left, right);
-	guardband_y = MIN2(-top, bottom);
-
-	discard_x = 1.0;
-	discard_y = 1.0;
-
-	if (rctx->current_rast_prim < PIPE_PRIM_TRIANGLES) {
-		/* When rendering wide points or lines, we need to be more
-		 * conservative about when to discard them entirely. Since
-		 * point size can be determined by the VS output, we basically
-		 * disable discard completely completely here.
-		 *
-		 * TODO: This can hurt performance when rendering lines and
-		 * points with fixed size, and could be improved.
-		 */
-		discard_x = guardband_x;
-		discard_y = guardband_y;
-	}
-
-	/* If any of the GB registers is updated, all of them must be updated. */
-	if (rctx->chip_class >= CAYMAN)
-		radeon_set_context_reg_seq(cs, CM_R_028BE8_PA_CL_GB_VERT_CLIP_ADJ, 4);
-	else
-		radeon_set_context_reg_seq(cs, R600_R_028C0C_PA_CL_GB_VERT_CLIP_ADJ, 4);
-
-	radeon_emit(cs, fui(guardband_y)); /* R_028BE8_PA_CL_GB_VERT_CLIP_ADJ */
-	radeon_emit(cs, fui(discard_y));   /* R_028BEC_PA_CL_GB_VERT_DISC_ADJ */
-	radeon_emit(cs, fui(guardband_x)); /* R_028BF0_PA_CL_GB_HORZ_CLIP_ADJ */
-	radeon_emit(cs, fui(discard_x));   /* R_028BF4_PA_CL_GB_HORZ_DISC_ADJ */
-}
-
-static void r600_emit_scissors(struct r600_common_context *rctx, struct r600_atom *atom)
-{
-	struct radeon_winsys_cs *cs = rctx->gfx.cs;
-	struct pipe_scissor_state *states = rctx->scissors.states;
-	unsigned mask = rctx->scissors.dirty_mask;
-	bool scissor_enabled = rctx->scissor_enabled;
-	struct r600_signed_scissor max_vp_scissor;
-	int i;
-
-	/* The simple case: Only 1 viewport is active. */
-	if (!rctx->vs_writes_viewport_index) {
-		struct r600_signed_scissor *vp = &rctx->viewports.as_scissor[0];
-
-		if (!(mask & 1))
-			return;
-
-		radeon_set_context_reg_seq(cs, R_028250_PA_SC_VPORT_SCISSOR_0_TL, 2);
-		r600_emit_one_scissor(rctx, cs, vp, scissor_enabled ? &states[0] : NULL);
-		r600_emit_guardband(rctx, vp);
-		rctx->scissors.dirty_mask &= ~1; /* clear one bit */
-		return;
-	}
-
-	/* Shaders can draw to any viewport. Make a union of all viewports. */
-	max_vp_scissor = rctx->viewports.as_scissor[0];
-	for (i = 1; i < R600_MAX_VIEWPORTS; i++)
-		r600_scissor_make_union(&max_vp_scissor,
-				      &rctx->viewports.as_scissor[i]);
-
-	while (mask) {
-		int start, count, i;
-
-		u_bit_scan_consecutive_range(&mask, &start, &count);
-
-		radeon_set_context_reg_seq(cs, R_028250_PA_SC_VPORT_SCISSOR_0_TL +
-					       start * 4 * 2, count * 2);
-		for (i = start; i < start+count; i++) {
-			r600_emit_one_scissor(rctx, cs, &rctx->viewports.as_scissor[i],
-					      scissor_enabled ? &states[i] : NULL);
-		}
-	}
-	r600_emit_guardband(rctx, &max_vp_scissor);
-	rctx->scissors.dirty_mask = 0;
-}
-
-static void r600_set_viewport_states(struct pipe_context *ctx,
-				     unsigned start_slot,
-				     unsigned num_viewports,
-				     const struct pipe_viewport_state *state)
-{
-	struct r600_common_context *rctx = (struct r600_common_context *)ctx;
-	unsigned mask;
-	int i;
-
-	for (i = 0; i < num_viewports; i++) {
-		unsigned index = start_slot + i;
-
-		rctx->viewports.states[index] = state[i];
-		r600_get_scissor_from_viewport(rctx, &state[i],
-					       &rctx->viewports.as_scissor[index]);
-	}
-
-	mask = ((1 << num_viewports) - 1) << start_slot;
-	rctx->viewports.dirty_mask |= mask;
-	rctx->viewports.depth_range_dirty_mask |= mask;
-	rctx->scissors.dirty_mask |= mask;
-	rctx->set_atom_dirty(rctx, &rctx->viewports.atom, true);
-	rctx->set_atom_dirty(rctx, &rctx->scissors.atom, true);
-}
-
-static void r600_emit_one_viewport(struct r600_common_context *rctx,
-				   struct pipe_viewport_state *state)
-{
-	struct radeon_winsys_cs *cs = rctx->gfx.cs;
-
-	radeon_emit(cs, fui(state->scale[0]));
-	radeon_emit(cs, fui(state->translate[0]));
-	radeon_emit(cs, fui(state->scale[1]));
-	radeon_emit(cs, fui(state->translate[1]));
-	radeon_emit(cs, fui(state->scale[2]));
-	radeon_emit(cs, fui(state->translate[2]));
-}
-
-static void r600_emit_viewports(struct r600_common_context *rctx)
-{
-	struct radeon_winsys_cs *cs = rctx->gfx.cs;
-	struct pipe_viewport_state *states = rctx->viewports.states;
-	unsigned mask = rctx->viewports.dirty_mask;
-
-	/* The simple case: Only 1 viewport is active. */
-	if (!rctx->vs_writes_viewport_index) {
-		if (!(mask & 1))
-			return;
-
-		radeon_set_context_reg_seq(cs, R_02843C_PA_CL_VPORT_XSCALE, 6);
-		r600_emit_one_viewport(rctx, &states[0]);
-		rctx->viewports.dirty_mask &= ~1; /* clear one bit */
-		return;
-	}
-
-	while (mask) {
-		int start, count, i;
-
-		u_bit_scan_consecutive_range(&mask, &start, &count);
-
-		radeon_set_context_reg_seq(cs, R_02843C_PA_CL_VPORT_XSCALE +
-					       start * 4 * 6, count * 6);
-		for (i = start; i < start+count; i++)
-			r600_emit_one_viewport(rctx, &states[i]);
-	}
-	rctx->viewports.dirty_mask = 0;
-}
-
-static void r600_emit_depth_ranges(struct r600_common_context *rctx)
-{
-	struct radeon_winsys_cs *cs = rctx->gfx.cs;
-	struct pipe_viewport_state *states = rctx->viewports.states;
-	unsigned mask = rctx->viewports.depth_range_dirty_mask;
-	float zmin, zmax;
-
-	/* The simple case: Only 1 viewport is active. */
-	if (!rctx->vs_writes_viewport_index) {
-		if (!(mask & 1))
-			return;
-
-		util_viewport_zmin_zmax(&states[0], rctx->clip_halfz, &zmin, &zmax);
-
-		radeon_set_context_reg_seq(cs, R_0282D0_PA_SC_VPORT_ZMIN_0, 2);
-		radeon_emit(cs, fui(zmin));
-		radeon_emit(cs, fui(zmax));
-		rctx->viewports.depth_range_dirty_mask &= ~1; /* clear one bit */
-		return;
-	}
-
-	while (mask) {
-		int start, count, i;
-
-		u_bit_scan_consecutive_range(&mask, &start, &count);
-
-		radeon_set_context_reg_seq(cs, R_0282D0_PA_SC_VPORT_ZMIN_0 +
-					   start * 4 * 2, count * 2);
-		for (i = start; i < start+count; i++) {
-			util_viewport_zmin_zmax(&states[i], rctx->clip_halfz, &zmin, &zmax);
-			radeon_emit(cs, fui(zmin));
-			radeon_emit(cs, fui(zmax));
-		}
-	}
-	rctx->viewports.depth_range_dirty_mask = 0;
-}
-
-static void r600_emit_viewport_states(struct r600_common_context *rctx,
-				      struct r600_atom *atom)
-{
-	r600_emit_viewports(rctx);
-	r600_emit_depth_ranges(rctx);
-}
-
-/* Set viewport dependencies on pipe_rasterizer_state. */
-void si_viewport_set_rast_deps(struct r600_common_context *rctx,
-			       bool scissor_enable, bool clip_halfz)
-{
-	if (rctx->scissor_enabled != scissor_enable) {
-		rctx->scissor_enabled = scissor_enable;
-		rctx->scissors.dirty_mask = (1 << R600_MAX_VIEWPORTS) - 1;
-		rctx->set_atom_dirty(rctx, &rctx->scissors.atom, true);
-	}
-	if (rctx->clip_halfz != clip_halfz) {
-		rctx->clip_halfz = clip_halfz;
-		rctx->viewports.depth_range_dirty_mask = (1 << R600_MAX_VIEWPORTS) - 1;
-		rctx->set_atom_dirty(rctx, &rctx->viewports.atom, true);
-	}
-}
-
-/**
- * Normally, we only emit 1 viewport and 1 scissor if no shader is using
- * the VIEWPORT_INDEX output, and emitting the other viewports and scissors
- * is delayed. When a shader with VIEWPORT_INDEX appears, this should be
- * called to emit the rest.
- */
-void si_update_vs_writes_viewport_index(struct r600_common_context *rctx,
-					struct tgsi_shader_info *info)
-{
-	bool vs_window_space;
-
-	if (!info)
-		return;
-
-	/* When the VS disables clipping and viewport transformation. */
-	vs_window_space =
-		info->properties[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION];
-
-	if (rctx->vs_disables_clipping_viewport != vs_window_space) {
-		rctx->vs_disables_clipping_viewport = vs_window_space;
-		rctx->scissors.dirty_mask = (1 << R600_MAX_VIEWPORTS) - 1;
-		rctx->set_atom_dirty(rctx, &rctx->scissors.atom, true);
-	}
-
-	/* Viewport index handling. */
-	rctx->vs_writes_viewport_index = info->writes_viewport_index;
-	if (!rctx->vs_writes_viewport_index)
-		return;
-
-	if (rctx->scissors.dirty_mask)
-	    rctx->set_atom_dirty(rctx, &rctx->scissors.atom, true);
-
-	if (rctx->viewports.dirty_mask ||
-	    rctx->viewports.depth_range_dirty_mask)
-	    rctx->set_atom_dirty(rctx, &rctx->viewports.atom, true);
-}
-
-void si_init_viewport_functions(struct r600_common_context *rctx)
-{
-	rctx->scissors.atom.emit = r600_emit_scissors;
-	rctx->viewports.atom.emit = r600_emit_viewport_states;
-
-	rctx->scissors.atom.num_dw = (2 + 16 * 2) + 6;
-	rctx->viewports.atom.num_dw = 2 + 16 * 6;
-
-	rctx->b.set_scissor_states = r600_set_scissor_states;
-	rctx->b.set_viewport_states = r600_set_viewport_states;
-}