[PULL,31/39] hw/display/pl110: Remove dead code for non-32-bpp surfaces

Commit Message

Peter Maydell March 12, 2021, 1:51 p.m. UTC

For a long time now the UI layer has guaranteed that the console
surface is always 32 bits per pixel. Remove the legacy dead
code from the pl110 display device which was handling the
possibility that the console surface was some other format.

Signed-off-by: Peter Maydell <[e-mail]>
Acked-by: Gerd Hoffmann <[e-mail]>
Message-id: [e-mail]
---
 hw/display/pl110.c | 53 +++++++---------------------------------------
 1 file changed, 8 insertions(+), 45 deletions(-)

Patch

diff --git a/hw/display/pl110.c b/hw/display/pl110.c
index 02b0d45f062..a0d4126ce7f 100644
--- a/hw/display/pl110.c
+++ b/hw/display/pl110.c
@@ -123,14 +123,6 @@  static const unsigned char *idregs[] = {
     pl111_id
 };
 
-#define BITS 8
-#include "pl110_template.h"
-#define BITS 15
-#include "pl110_template.h"
-#define BITS 16
-#include "pl110_template.h"
-#define BITS 24
-#include "pl110_template.h"
 #define BITS 32
 #include "pl110_template.h"
 
@@ -144,9 +136,7 @@  static void pl110_update_display(void *opaque)
     PL110State *s = (PL110State *)opaque;
     SysBusDevice *sbd;
     DisplaySurface *surface = qemu_console_surface(s->con);
-    drawfn* fntable;
     drawfn fn;
-    int dest_width;
     int src_width;
     int bpp_offset;
     int first;
@@ -158,33 +148,6 @@  static void pl110_update_display(void *opaque)
 
     sbd = SYS_BUS_DEVICE(s);
 
-    switch (surface_bits_per_pixel(surface)) {
-    case 0:
-        return;
-    case 8:
-        fntable = pl110_draw_fn_8;
-        dest_width = 1;
-        break;
-    case 15:
-        fntable = pl110_draw_fn_15;
-        dest_width = 2;
-        break;
-    case 16:
-        fntable = pl110_draw_fn_16;
-        dest_width = 2;
-        break;
-    case 24:
-        fntable = pl110_draw_fn_24;
-        dest_width = 3;
-        break;
-    case 32:
-        fntable = pl110_draw_fn_32;
-        dest_width = 4;
-        break;
-    default:
-        fprintf(stderr, "pl110: Bad color depth\n");
-        exit(1);
-    }
     if (s->cr & PL110_CR_BGR)
         bpp_offset = 0;
     else
@@ -218,12 +181,13 @@  static void pl110_update_display(void *opaque)
         }
     }
 
-    if (s->cr & PL110_CR_BEBO)
-        fn = fntable[s->bpp + 8 + bpp_offset];
-    else if (s->cr & PL110_CR_BEPO)
-        fn = fntable[s->bpp + 16 + bpp_offset];
-    else
-        fn = fntable[s->bpp + bpp_offset];
+    if (s->cr & PL110_CR_BEBO) {
+        fn = pl110_draw_fn_32[s->bpp + 8 + bpp_offset];
+    } else if (s->cr & PL110_CR_BEPO) {
+        fn = pl110_draw_fn_32[s->bpp + 16 + bpp_offset];
+    } else {
+        fn = pl110_draw_fn_32[s->bpp + bpp_offset];
+    }
 
     src_width = s->cols;
     switch (s->bpp) {
@@ -247,7 +211,6 @@  static void pl110_update_display(void *opaque)
         src_width <<= 2;
         break;
     }
-    dest_width *= s->cols;
     first = 0;
     if (s->invalidate) {
         framebuffer_update_memory_section(&s->fbsection,
@@ -258,7 +221,7 @@  static void pl110_update_display(void *opaque)
 
     framebuffer_update_display(surface, &s->fbsection,
                                s->cols, s->rows,
-                               src_width, dest_width, 0,
+                               src_width, s->cols * 4, 0,
                                s->invalidate,
                                fn, s->palette,
                                &first, &last);