[Qemu-devel] [PATCH 3/8] next framebuffer driver, very basic, only supports running under 32 bit color at the moment

[Bryce Lanham]

Signed-off-by: Bryce Lanham <address@hidden>
---
 hw/next-fb.c |  102 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 hw/next-fb.h |   14 ++++++++
 2 files changed, 116 insertions(+), 0 deletions(-)
 create mode 100644 hw/next-fb.c
 create mode 100644 hw/next-fb.h

diff --git a/hw/next-fb.c b/hw/next-fb.c
new file mode 100644
index 0000000..0cccae3
--- /dev/null
+++ b/hw/next-fb.c
@@ -0,0 +1,102 @@
+/*
+ * NeXT Cube/Staion Framebuffer Emulation
+ *
+ * Copyright (c) 2011 Bryce Lanham
+ *
+ * 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 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.
+ */
+#include "hw.h"
+#include "loader.h"
+#include "console.h"
+#include "framebuffer.h"
+#define BITS 8
+#include "pixel_ops.h"
+#include "next-fb.h"
+/*
+typedef struct NextVGAState {
+    VGACommonState vga;
+    target_phys_addr_t vram_base;
+       };*/
+//need a function to register the mm i/o for fb and to register vram
+
+void nextfb_draw_line(void *opaque, uint8_t *d, const uint8_t *s, int width, 
int pitch)
+{
+    uint32_t pal[4] = {0xFFFFFFFF, 0xFFAAAAAA, 0xFF555555,0xFF000000};
+    uint32_t*buf = qemu_malloc(1120*4);
+    int i = 0;
+    for(;i<280; i++)
+    {
+        int j=i*4;
+        uint8_t src = s[i];
+        buf[j+3]= pal[src & 0x3];
+        src >>=2;
+        buf[j+2]= pal[src & 0x3];
+        src >>=2;
+        buf[j+1]= pal[src & 0x3];
+        src >>=2;
+        buf[j+0]= pal[src & 0x3];
+    }
+       
+    memcpy(d,buf,1120*4);
+       free(buf);
+}
+
+
+static void nextfb_update(void * opaque)
+{
+       next_state_t *s = (next_state_t *)opaque;
+       DisplaySurface *info = s->ds->surface;
+
+       
+       
+       int dest_width = 4;
+       int src_width;
+       int first = 0;
+       int last  = 0;
+       src_width = s->cols = 1120;
+       src_width = 288;
+       dest_width = 1120;
+       dest_width = info->linesize;
+       framebuffer_update_display(s->ds,
+                                                       0xB000000,1120,832,
+                                                       src_width,dest_width, 0,
+                                                       1,
+                                                       nextfb_draw_line,
+                                                       NULL,
+                                                       &first, &last);
+
+       dpy_update(s->ds,0,0,1120,832); 
+}
+
+static void nextfb_invalidate(void *opaque)
+{
+}
+
+void nextfb_init(next_state_t *s)
+{
+    s->ds = graphic_console_init(nextfb_update,nextfb_invalidate, NULL, NULL, 
s);
+       qemu_console_resize(s->ds,1120,832);    
+       s->cols = 1120;
+       s->rows = 832;
+       s->invalidate = 1;
+
+    cpu_register_physical_memory(0xB000000, 0x1CB100, 
+        qemu_ram_alloc(NULL,"next-vram.ram",0x1CB100) | IO_MEM_RAM);
+
+}
diff --git a/hw/next-fb.h b/hw/next-fb.h
new file mode 100644
index 0000000..9d2b547
--- /dev/null
+++ b/hw/next-fb.h
@@ -0,0 +1,14 @@
+typedef struct {
+       DisplayState *ds;
+       uint32_t base;
+       uint32_t pitch;
+       uint32_t cols;
+       uint32_t rows;
+       int invalidate;
+
+
+} next_state_t;
+
+void nextfb_draw_line(void *opaque, uint8_t *d, const uint8_t *s, int width, 
int pitch);
+
+void nextfb_init(next_state_t *s);
-- 
1.7.2.3