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20402106a3
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
78 lines
2.6 KiB
Diff
78 lines
2.6 KiB
Diff
From 265a20f8e1c0e3578aea9dcf9d2ea93ea909b76b Mon Sep 17 00:00:00 2001
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From: Eric Anholt <eric@anholt.net>
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Date: Mon, 28 Dec 2015 14:45:25 -0800
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Subject: [PATCH 280/423] drm/vc4: Fix which value is being used for source
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image size.
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This doesn't matter yet since we only allow 1:1 scaling, but the
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comment clearly says we should be using the source size.
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Signed-off-by: Eric Anholt <eric@anholt.net>
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(cherry picked from commit f863e356013d628fa65b1cd89aa298eed26fc936)
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---
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drivers/gpu/drm/vc4/vc4_plane.c | 23 ++++++++++++++---------
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1 file changed, 14 insertions(+), 9 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_plane.c
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+++ b/drivers/gpu/drm/vc4/vc4_plane.c
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@@ -47,6 +47,8 @@ struct vc4_plane_state {
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/* Clipped coordinates of the plane on the display. */
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int crtc_x, crtc_y, crtc_w, crtc_h;
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+ /* Clipped size of the area scanned from in the FB. */
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+ u32 src_w, src_h;
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/* Offset to start scanning out from the start of the plane's
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* BO.
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@@ -186,11 +188,6 @@ static int vc4_plane_setup_clipping_and_
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vc4_state->offset = fb->offsets[0];
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- vc4_state->crtc_x = state->crtc_x;
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- vc4_state->crtc_y = state->crtc_y;
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- vc4_state->crtc_w = state->crtc_w;
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- vc4_state->crtc_h = state->crtc_h;
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-
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if (state->crtc_w << 16 != state->src_w ||
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state->crtc_h << 16 != state->src_h) {
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/* We don't support scaling yet, which involves
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@@ -201,17 +198,25 @@ static int vc4_plane_setup_clipping_and_
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return -EINVAL;
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}
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+ vc4_state->src_w = state->src_w >> 16;
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+ vc4_state->src_h = state->src_h >> 16;
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+
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+ vc4_state->crtc_x = state->crtc_x;
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+ vc4_state->crtc_y = state->crtc_y;
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+ vc4_state->crtc_w = state->crtc_w;
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+ vc4_state->crtc_h = state->crtc_h;
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+
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if (vc4_state->crtc_x < 0) {
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vc4_state->offset += (drm_format_plane_cpp(fb->pixel_format,
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0) *
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-vc4_state->crtc_x);
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- vc4_state->crtc_w += vc4_state->crtc_x;
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+ vc4_state->src_w += vc4_state->crtc_x;
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vc4_state->crtc_x = 0;
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}
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if (vc4_state->crtc_y < 0) {
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vc4_state->offset += fb->pitches[0] * -vc4_state->crtc_y;
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- vc4_state->crtc_h += vc4_state->crtc_y;
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+ vc4_state->src_h += vc4_state->crtc_y;
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vc4_state->crtc_y = 0;
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}
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@@ -260,8 +265,8 @@ static int vc4_plane_mode_set(struct drm
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SCALER_POS2_ALPHA_MODE_PIPELINE :
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SCALER_POS2_ALPHA_MODE_FIXED,
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SCALER_POS2_ALPHA_MODE) |
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- VC4_SET_FIELD(vc4_state->crtc_w, SCALER_POS2_WIDTH) |
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- VC4_SET_FIELD(vc4_state->crtc_h, SCALER_POS2_HEIGHT));
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+ VC4_SET_FIELD(vc4_state->src_w, SCALER_POS2_WIDTH) |
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+ VC4_SET_FIELD(vc4_state->src_h, SCALER_POS2_HEIGHT));
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/* Position Word 3: Context. Written by the HVS. */
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vc4_dlist_write(vc4_state, 0xc0c0c0c0);
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