Added some comments and some (commented, for now) code as an example for the app_server communication.
DarkWyrm (or Adi, or whoever else), please feel free to implement the needed code on the app_server side when you want ^_^ (or when it's possible, not so important right now) git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8229 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini
@@ -30,9 +30,15 @@
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#include "PrivateScreen.h"
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// TODO: As you'll have seen, we sometimes include the screen_id to the app server
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// request, sometimes not. I think the screen_id is not needed if we send the workspace
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// index.
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// TODO: We should define this somewhere else
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// We could find how R5 defines this, though it's not strictly necessary
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// AFAIK, R5 here keeps also the screen width, height, colorspace, and some other things
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// (it's 48 bytes big)
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struct screen_desc {
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void *base_address;
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uint32 bytes_per_row;
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@@ -46,6 +52,8 @@ extern BPrivateScreen *gPrivateScreen;
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BPrivateScreen *
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BPrivateScreen::CheckOut(BWindow *win)
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{
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// TODO: If we start supporting multiple monitors, we
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// should return the right screen for the passed BWindow
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return gPrivateScreen;
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}
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@@ -53,6 +61,8 @@ BPrivateScreen::CheckOut(BWindow *win)
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BPrivateScreen *
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BPrivateScreen::CheckOut(screen_id id)
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{
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// TODO: If we start supporting multiple monitors, we
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// should return the right object for the given screen_id
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return gPrivateScreen;
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}
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@@ -60,6 +70,9 @@ BPrivateScreen::CheckOut(screen_id id)
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void
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BPrivateScreen::Return(BPrivateScreen *screen)
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{
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// Not much to do here. I guess it's some legacy from pre-R5,
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// where BScreen could not be used for long time,
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// as they blocked the BApplication
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}
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@@ -85,18 +98,20 @@ BPrivateScreen::ColorSpace()
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BRect
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BPrivateScreen::Frame()
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{
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// If something goes wrong, we just return this rectangle.
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BRect rect(0, 0, 0, 0);
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display_mode mode;
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if (GetMode(B_ALL_WORKSPACES, &mode) == B_OK) {
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BRect frame(0, 0, (float)mode.virtual_width - 1, (float)mode.virtual_height - 1);
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return frame;
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}
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return BRect();
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if (GetMode(B_ALL_WORKSPACES, &mode) == B_OK)
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rect.Set(0, 0, (float)mode.virtual_width - 1, (float)mode.virtual_height - 1);
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return rect;
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}
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screen_id
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BPrivateScreen::ID()
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{
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// TODO: Change this if we start supporting multiple screens
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return B_MAIN_SCREEN_ID;
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}
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@@ -123,6 +138,14 @@ BPrivateScreen::RetraceSemaphore()
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{
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sem_id id = B_BAD_SEM_ID;
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// TODO: Implement
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/*
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BAppServerLink link;
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PortMessage reply;
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link.SetOpCode(AS_GET_RETRACE_SEMAPHORE);
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link.Attach<screen_id>(ID());
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link.FlushWithReply(&reply);
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reply.Read<sem_id>(&id);
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*/
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return id;
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}
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@@ -190,22 +213,32 @@ BPrivateScreen::ReadBitmap(BBitmap *bitmap, bool drawCursor, BRect *bound)
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rgb_color
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BPrivateScreen::DesktopColor(uint32 index)
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BPrivateScreen::DesktopColor(uint32 workspace)
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{
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if (fColorMap) {
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}
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return rgb_color();
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rgb_color color;
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/*
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BAppServerLink link;
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PortMessage reply;
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link.SetOpCode(AS_GET_DESKTOP_COLOR);
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link.Attach<int32>(workspace);
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link.FlushWithReply(&reply);
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reply.Read<rgb_color>(&color);
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*/
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return color;
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}
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void
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BPrivateScreen::SetDesktopColor(rgb_color, uint32, bool)
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BPrivateScreen::SetDesktopColor(rgb_color color, uint32 workspace, bool makeDefault)
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{
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if (fColorMap) {
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}
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/*
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BAppServerLink link;
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link.SetOpCode(AS_SET_DESKTOP_COLOR);
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link.Attach<rgb_color>(color);
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link.Attach<int32>(workspace);
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link.Attach<bool>(makeDefault);
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link.Flush();
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*/
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}
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@@ -229,7 +262,21 @@ status_t
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BPrivateScreen::GetMode(uint32 workspace, display_mode *mode)
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{
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// TODO: Implement
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return B_ERROR;
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status_t status = B_ERROR;
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/*
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BAppServerLink link;
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PortMessage reply;
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display_mode currentMode;
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link.SetOpCode(AS_GET_MODE);
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link.Attach<uint32>(workspace);
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link.FlushWithReply(&reply);
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reply.Read<display_mode>(¤tMode);
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reply.Read<status_t>(&status);
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if (status == B_OK && mode)
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*mode = currentMode;
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*/
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return status;
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}
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@@ -237,7 +284,18 @@ status_t
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BPrivateScreen::SetMode(uint32 workspace, display_mode *mode, bool makeDefault)
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{
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// TODO: Implement
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return B_ERROR;
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status_t status = B_ERROR;
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/*
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BAppServerLink link;
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PortMessage reply;
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link.SetOpCode(AS_SET_MODE);
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link.Attach<uint32>(workspace);
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link.Attach<display_mode>(*mode);
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link.Attach<bool>(makeDefault);
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link.FlushWithReply(&reply);
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reply.Read<status_t>(&status);
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*/
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return status;
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}
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@@ -268,8 +326,17 @@ BPrivateScreen::GetTimingConstraints(display_timing_constraints *dtc)
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status_t
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BPrivateScreen::SetDPMS(uint32 dpmsState)
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{
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// TODO: Implement
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return B_ERROR;
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status_t status = B_ERROR;
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/*
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BAppServerLink link;
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PortMessage reply;
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link.SetOpCode(AS_SET_DPMS);
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link.Attach<screen_id>(ID());
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link.Attach<uint32>(dpmsState);
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link.FlushWithReply(&reply);
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reply.Read<status_t>(&status);
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*/
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return status;
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}
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@@ -277,7 +344,16 @@ uint32
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BPrivateScreen::DPMSState()
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{
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// TODO: Implement
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return B_ERROR;
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uint32 state = 0;
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/*
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BAppServerLink link;
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PortMessage reply;
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link.SetOpCode(AS_GET_DPMS_STATE);
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link.Attach<screen_id>(ID());
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link.FlushWithReply(&reply);
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reply.Read<uint32>(&state);
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*/
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return state;
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}
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@@ -285,7 +361,16 @@ uint32
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BPrivateScreen::DPMSCapabilites()
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{
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// TODO: Implement
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return B_ERROR;
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uint32 capabilities = 0;
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/*
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BAppServerLink link;
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PortMessage reply;
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link.SetOpCode(AS_GET_DPMS_CAPABILITIES);
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link.Attach<screen_id>(ID());
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link.FlushWithReply(&reply);
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reply.Read<uint32>(&capabilities);
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*/
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return capabilities;
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}
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@@ -313,7 +398,17 @@ BPrivateScreen::BytesPerRow()
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status_t
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BPrivateScreen::get_screen_desc(screen_desc *desc)
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{
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return B_ERROR;
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status_t status = B_ERROR;
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/*
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BAppServerLink link;
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PortMessage reply;
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link.SetOpCode(AS_GET_SCREEN_DESC);
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link.Attach<screen_id>(ID());
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link.FlushWithReply(&reply);
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reply.Read<screen_desc>(*desc);
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reply.Read<status_t>(&status);
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*/
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return status;
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}
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@@ -325,6 +420,10 @@ BPrivateScreen::BPrivateScreen()
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fOwnsColorMap(false)
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{
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// TODO: Get a pointer or a copy of the colormap from the app server
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// if we only have one screen (one card, one monitor),
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// it's better to get only a pointer (with BApplication::ro_offset_to_ptr() ?)
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// otherwise every BApplication will keep a copy of the same colormap,
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// and we would waste memory for nothing
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}
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