mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 14:37:57 +00:00
8c405cdccc
The patches were generated from the RPi repo with the following command: git format-patch v6.6.34..rpi-6.1.y Some patches needed rebasing and, as usual, the applied and reverted, wireless drivers, Github workflows, READMEs and defconfigs patches were removed. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
106 lines
3.7 KiB
Diff
106 lines
3.7 KiB
Diff
From 082526e9709190ec5e035266a33a7a4858ad7a79 Mon Sep 17 00:00:00 2001
|
|
From: Dom Cobley <popcornmix@gmail.com>
|
|
Date: Fri, 9 Apr 2021 15:00:40 +0100
|
|
Subject: [PATCH 0021/1085] vc4/drm: Handle fractional coordinates using the
|
|
phase field
|
|
|
|
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_plane.c | 61 ++++++++++++++++++++++++++++++---
|
|
1 file changed, 56 insertions(+), 5 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_plane.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
|
|
@@ -532,14 +532,47 @@ static void vc4_write_tpz(struct vc4_pla
|
|
VC4_SET_FIELD(recip, SCALER_TPZ1_RECIP));
|
|
}
|
|
|
|
-static void vc4_write_ppf(struct vc4_plane_state *vc4_state, u32 src, u32 dst)
|
|
+/* phase magnitude bits */
|
|
+#define PHASE_BITS 6
|
|
+
|
|
+static void vc4_write_ppf(struct vc4_plane_state *vc4_state, u32 src, u32 dst, u32 xy, int channel)
|
|
{
|
|
- u32 scale = (1 << 16) * src / dst;
|
|
+ u32 scale = src / dst;
|
|
+ s32 offset, offset2;
|
|
+ s32 phase;
|
|
+
|
|
+ /* Start the phase at 1/2 pixel from the 1st pixel at src_x.
|
|
+ 1/4 pixel for YUV. */
|
|
+ if (channel) {
|
|
+ /* the phase is relative to scale_src->x, so shift it for display list's x value */
|
|
+ offset = (xy & 0x1ffff) >> (16 - PHASE_BITS) >> 1;
|
|
+ offset += -(1 << PHASE_BITS >> 2);
|
|
+ } else {
|
|
+ /* the phase is relative to scale_src->x, so shift it for display list's x value */
|
|
+ offset = (xy & 0xffff) >> (16 - PHASE_BITS);
|
|
+ offset += -(1 << PHASE_BITS >> 1);
|
|
+
|
|
+ /* This is a kludge to make sure the scaling factors are consitent with YUV's luma scaling.
|
|
+ we lose 1bit precision because of this. */
|
|
+ scale &= ~1;
|
|
+ }
|
|
+
|
|
+ /* There may be a also small error introduced by precision of scale.
|
|
+ Add half of that as a compromise */
|
|
+ offset2 = src - dst * scale;
|
|
+ offset2 >>= 16 - PHASE_BITS;
|
|
+ phase = offset + (offset2 >> 1);
|
|
+
|
|
+ /* Ensure +ve values don't touch the sign bit, then truncate negative values */
|
|
+ if (phase >= 1 << PHASE_BITS)
|
|
+ phase = (1 << PHASE_BITS) - 1;
|
|
+
|
|
+ phase &= SCALER_PPF_IPHASE_MASK;
|
|
|
|
vc4_dlist_write(vc4_state,
|
|
SCALER_PPF_AGC |
|
|
VC4_SET_FIELD(scale, SCALER_PPF_SCALE) |
|
|
- VC4_SET_FIELD(0, SCALER_PPF_IPHASE));
|
|
+ VC4_SET_FIELD(phase, SCALER_PPF_IPHASE));
|
|
}
|
|
|
|
static u32 vc4_lbm_size(struct drm_plane_state *state)
|
|
@@ -598,13 +631,13 @@ static void vc4_write_scaling_parameters
|
|
/* Ch0 H-PPF Word 0: Scaling Parameters */
|
|
if (vc4_state->x_scaling[channel] == VC4_SCALING_PPF) {
|
|
vc4_write_ppf(vc4_state,
|
|
- vc4_state->src_w[channel], vc4_state->crtc_w);
|
|
+ vc4_state->src_w[channel], vc4_state->crtc_w, vc4_state->src_x, channel);
|
|
}
|
|
|
|
/* Ch0 V-PPF Words 0-1: Scaling Parameters, Context */
|
|
if (vc4_state->y_scaling[channel] == VC4_SCALING_PPF) {
|
|
vc4_write_ppf(vc4_state,
|
|
- vc4_state->src_h[channel], vc4_state->crtc_h);
|
|
+ vc4_state->src_h[channel], vc4_state->crtc_h, vc4_state->src_y, channel);
|
|
vc4_dlist_write(vc4_state, 0xc0c0c0c0);
|
|
}
|
|
|
|
@@ -1052,6 +1085,24 @@ static int vc4_plane_mode_set(struct drm
|
|
return -EINVAL;
|
|
}
|
|
|
|
+ /* fetch an extra pixel if we don't actually line up with the left edge. */
|
|
+ if ((vc4_state->src_x & 0xffff) && vc4_state->src_x < (state->fb->width << 16))
|
|
+ width++;
|
|
+
|
|
+ /* same for the right side */
|
|
+ if (((vc4_state->src_x + vc4_state->src_w[0]) & 0xffff) &&
|
|
+ vc4_state->src_x + vc4_state->src_w[0] < (state->fb->width << 16))
|
|
+ width++;
|
|
+
|
|
+ /* now for the top */
|
|
+ if ((vc4_state->src_y & 0xffff) && vc4_state->src_y < (state->fb->height << 16))
|
|
+ height++;
|
|
+
|
|
+ /* and the bottom */
|
|
+ if (((vc4_state->src_y + vc4_state->src_h[0]) & 0xffff) &&
|
|
+ vc4_state->src_y + vc4_state->src_h[0] < (state->fb->height << 16))
|
|
+ height++;
|
|
+
|
|
/* Don't waste cycles mixing with plane alpha if the set alpha
|
|
* is opaque or there is no per-pixel alpha information.
|
|
* In any case we use the alpha property value as the fixed alpha.
|