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fb_boot_drv: evaluate fb pitch

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Fixes #2555
This commit is contained in:
Alexander Boettcher 2017-10-30 14:05:07 +01:00 committed by Christian Helmuth
parent bf3c57511b
commit 9672329772
3 changed files with 42 additions and 28 deletions
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65
repos/os/src/drivers/framebuffer/boot/framebuffer.cc
View File

@ -20,6 +20,10 @@ Session_component::Session_component(Genode::Env &env,
Genode::Xml_node pinfo)
: _env(env)
{
enum { RGB_COLOR = 1 };
unsigned fb_boot_type = 0;
try {
Genode::Xml_node fb = pinfo.sub_node("boot").sub_node("framebuffer");
@ -27,27 +31,29 @@ Session_component::Session_component(Genode::Env &env,
fb.attribute("width").value(&_core_fb.width);
fb.attribute("height").value(&_core_fb.height);
fb.attribute("bpp").value(&_core_fb.bpp);
fb.attribute("pitch").value(&_core_fb.pitch);
fb_boot_type = fb.attribute_value("type", 0U);
} catch (...) {
Genode::error("No boot framebuffer information available.");
throw Genode::Service_denied();
}
Genode::log("Framebuffer with ", _core_fb.width, "x", _core_fb.height,
"x", _core_fb.bpp, " @ ", (void*)_core_fb.addr);
"x", _core_fb.bpp, " @ ", (void*)_core_fb.addr,
" type=", fb_boot_type, " pitch=", _core_fb.pitch);
/* calculate required padding to align framebuffer to 16 pixels */
_pad = (16 - (_core_fb.width % 16)) & 0x0f;
if (_core_fb.bpp != 32 || fb_boot_type != RGB_COLOR ) {
Genode::error("unsupported resolution (bpp or/and type)");
throw Genode::Service_denied();
}
_fb_mem.construct(
_env,
_core_fb.addr,
(_core_fb.width + _pad) * _core_fb.height * _core_fb.bpp / 4,
true);
_fb_mem.construct(_env, _core_fb.addr, _core_fb.pitch * _core_fb.height,
true);
_fb_mode = Mode(_core_fb.width, _core_fb.height, Mode::RGB565);
_fb_ram.construct(_env.ram(), _env.rm(),
_core_fb.width * _core_fb.height * _fb_mode.bytes_per_pixel());
_fb_ram.construct(_env.ram(), _env.rm(), _core_fb.width * _core_fb.height *
_fb_mode.bytes_per_pixel());
}
Mode Session_component::mode() const { return _fb_mode; }
@ -60,23 +66,30 @@ void Session_component::sync_sigh(Genode::Signal_context_capability scc)
timer.trigger_periodic(10*1000);
}
void Session_component::refresh(int x, int y, int w, int h)
void Session_component::refresh(int const x, int const y, int const w, int const h)
{
Genode::uint32_t u_x = (Genode::uint32_t)Genode::min(_core_fb.width, (Genode::uint32_t)Genode::max(x, 0));
Genode::uint32_t u_y = (Genode::uint32_t)Genode::min(_core_fb.height, (Genode::uint32_t)Genode::max(y, 0));
Genode::uint32_t u_w = (Genode::uint32_t)Genode::min(_core_fb.width, (Genode::uint32_t)Genode::max(w, 0) + u_x);
Genode::uint32_t u_h = (Genode::uint32_t)Genode::min(_core_fb.height, (Genode::uint32_t)Genode::max(h, 0) + u_y);
Genode::Pixel_rgb888 *pixel_32 = _fb_mem->local_addr<Genode::Pixel_rgb888>();
Genode::Pixel_rgb565 *pixel_16 = _fb_ram->local_addr<Genode::Pixel_rgb565>();
for (Genode::uint32_t r = u_y; r < u_h; ++r){
for (Genode::uint32_t c = u_x; c < u_w; ++c){
Genode::uint32_t s = c + r * _core_fb.width;
Genode::uint32_t d = c + r * (_core_fb.width + _pad);
pixel_32[d].rgba(
pixel_16[s].r(),
pixel_16[s].g(),
pixel_16[s].b(),
0);
using namespace Genode;
uint32_t const c_x = x < 0 ? 0U : x;
uint32_t const c_y = y < 0 ? 0U : y;
uint32_t const c_w = w < 0 ? 0U : w;
uint32_t const c_h = h < 0 ? 0U : h;
uint32_t const u_x = min(_core_fb.width, max(c_x, 0U));
uint32_t const u_y = min(_core_fb.height, max(c_y, 0U));
uint32_t const u_w = min(_core_fb.width, max(c_w, 0U) + u_x);
uint32_t const u_h = min(_core_fb.height, max(c_h, 0U) + u_y);
Pixel_rgb888 * const pixel_32 = _fb_mem->local_addr<Pixel_rgb888>();
Pixel_rgb565 const * const pixel_16 = _fb_ram->local_addr<Pixel_rgb565>();
for (uint32_t r = u_y; r < u_h; ++r) {
for (uint32_t c = u_x; c < u_w; ++c) {
uint32_t const s = c + r * _core_fb.width;
uint32_t const d = c + r * (_core_fb.pitch / (_core_fb.bpp / 8));
pixel_32[d].rgba(pixel_16[s].r(), pixel_16[s].g(),
pixel_16[s].b(), 0);
}
}
}

3
repos/os/src/drivers/framebuffer/boot/include/framebuffer.h
View File

@ -40,6 +40,7 @@ class Framebuffer::Session_component : public Genode::Rpc_object<Framebuffer::Se
Genode::uint64_t addr;
Genode::uint32_t width;
Genode::uint32_t height;
Genode::uint32_t pitch;
Genode::uint32_t bpp;
} _core_fb;
@ -50,8 +51,6 @@ class Framebuffer::Session_component : public Genode::Rpc_object<Framebuffer::Se
Timer::Connection timer { _env };
Genode::uint8_t _pad;
public:
Session_component(Genode::Env &, Genode::Xml_node);
Mode mode() const override;

2
tool/run/boot_dir/nova
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@ -93,6 +93,8 @@ proc run_boot_dir {binaries} {
#
set fh [open "[run_dir]/boot/grub/grub.cfg" "WRONLY CREAT TRUNC"]
puts $fh "set timeout=0"
# tell grub2 to prefer 32bit framebuffer resolution
puts $fh "set gfxpayload=\"0x0x32\""
puts $fh "menuentry 'Genode on NOVA' {"
puts $fh " multiboot2 /boot/bender serial_fallback"
puts $fh " module2 /hypervisor hypervisor iommu serial novpid novga"