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Add support for desination alpha for the back buffer.

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This commit is contained in:
aignacio_sf 2006-05-18 18:44:12 +00:00
parent a8f09b9631
commit 0924c50cd1
1 changed files with 31 additions and 11 deletions
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42
panda/src/dxgsg9/wdxGraphicsWindow9.cxx
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@ -101,7 +101,7 @@ begin_frame(FrameMode mode, Thread *current_thread) {
if (_gsg == (GraphicsStateGuardian *)NULL) {
return false;
}
if (_awaiting_restore) {
// The fullscreen window was recently restored; we can't continue
// until the GSG says we can.
@ -118,7 +118,7 @@ begin_frame(FrameMode mode, Thread *current_thread) {
if (mode == FM_render) {
clear_cube_map_selection();
}
_gsg->set_current_properties(&get_fb_properties());
bool return_val = _gsg->begin_frame(current_thread);
_dxgsg->set_render_target();
@ -477,8 +477,7 @@ do_fullscreen_resize(int x_size, int y_size) {
_wcontext._display_mode.Height = y_size;
_wcontext._display_mode.Format = pixFmt;
_wcontext._display_mode.RefreshRate = D3DPRESENT_RATE_DEFAULT;
_wcontext._presentation_params.BackBufferFormat = pixFmt; // make reset_device_resize use presparams or displaymode??
// keep the previous setting for _wcontext._presentation_params.BackBufferFormat
bResizeSucceeded = reset_device_resize_window(x_size, y_size);
@ -533,14 +532,13 @@ create_screen_buffers_and_device(DXScreenData &display, bool force_16bpp_zbuffer
// Update: Did I fix the bug? - Josh
int frame_buffer_mode = _fb_properties.get_frame_buffer_mode();
bool bWantStencil = ((frame_buffer_mode & FrameBufferProperties::FM_stencil) != 0);
bool bWantAlpha = ((frame_buffer_mode & FrameBufferProperties::FM_rgba) != 0);
PRINT_REFCNT(wdxdisplay9, _d3d9);
assert(_d3d9 != NULL);
assert(pD3DCaps->DevCaps & D3DDEVCAPS_HWRASTERIZATION);
presentation_params->BackBufferFormat = display._display_mode.Format; // dont need dest alpha, so just use adapter format
bool do_sync = sync_video;
if (do_sync && !(pD3DCaps->Caps & D3DCAPS_READ_SCANLINE)) {
@ -549,11 +547,33 @@ create_screen_buffers_and_device(DXScreenData &display, bool force_16bpp_zbuffer
do_sync = false;
}
// verify the rendertarget fmt one last time
if (FAILED(_d3d9->CheckDeviceFormat(display._card_id, D3DDEVTYPE_HAL, display._display_mode.Format, D3DUSAGE_RENDERTARGET,
D3DRTYPE_SURFACE, presentation_params->BackBufferFormat))) {
wdxdisplay9_cat.error() << "device #" << display._card_id << " CheckDeviceFmt failed for surface fmt " << D3DFormatStr(presentation_params->BackBufferFormat) << endl;
goto Fallback_to_16bpp_buffers;
bool check_device_format;
// check for D3DFMT_A8R8G8B8 first
check_device_format = false;
if (bWantAlpha) {
presentation_params->BackBufferFormat = D3DFMT_A8R8G8B8;
// verify the rendertarget fmt
if (FAILED(_d3d9->CheckDeviceFormat(display._card_id, D3DDEVTYPE_HAL, display._display_mode.Format, D3DUSAGE_RENDERTARGET,
D3DRTYPE_SURFACE, presentation_params->BackBufferFormat))) {
wdxdisplay9_cat.error() << "device #" << display._card_id << " CheckDeviceFmt failed for surface fmt " << D3DFormatStr(presentation_params->BackBufferFormat) << endl;
}
else {
check_device_format = true;
}
}
// check for same format as display_mode
if (check_device_format == false) {
presentation_params->BackBufferFormat = display._display_mode.Format;
// verify the rendertarget fmt
if (FAILED(_d3d9->CheckDeviceFormat(display._card_id, D3DDEVTYPE_HAL, display._display_mode.Format, D3DUSAGE_RENDERTARGET,
D3DRTYPE_SURFACE, presentation_params->BackBufferFormat))) {
wdxdisplay9_cat.error() << "device #" << display._card_id << " CheckDeviceFmt failed for surface fmt " << D3DFormatStr(presentation_params->BackBufferFormat) << endl;
}
else {
check_device_format = true;
}
}
if (FAILED(_d3d9->CheckDeviceType(display._card_id, D3DDEVTYPE_HAL, display._display_mode.Format, presentation_params->BackBufferFormat,