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Add support for desination alpha for the back buffer.

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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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38
panda/src/dxgsg9/wdxGraphicsWindow9.cxx
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@ -477,8 +477,7 @@ do_fullscreen_resize(int x_size, int y_size) {
_wcontext._display_mode.Height = y_size; _wcontext._display_mode.Height = y_size;
_wcontext._display_mode.Format = pixFmt; _wcontext._display_mode.Format = pixFmt;
_wcontext._display_mode.RefreshRate = D3DPRESENT_RATE_DEFAULT; _wcontext._display_mode.RefreshRate = D3DPRESENT_RATE_DEFAULT;
// keep the previous setting for _wcontext._presentation_params.BackBufferFormat
_wcontext._presentation_params.BackBufferFormat = pixFmt; // make reset_device_resize use presparams or displaymode??
bResizeSucceeded = reset_device_resize_window(x_size, y_size); 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 // Update: Did I fix the bug? - Josh
int frame_buffer_mode = _fb_properties.get_frame_buffer_mode(); int frame_buffer_mode = _fb_properties.get_frame_buffer_mode();
bool bWantStencil = ((frame_buffer_mode & FrameBufferProperties::FM_stencil) != 0); bool bWantStencil = ((frame_buffer_mode & FrameBufferProperties::FM_stencil) != 0);
bool bWantAlpha = ((frame_buffer_mode & FrameBufferProperties::FM_rgba) != 0);
PRINT_REFCNT(wdxdisplay9, _d3d9); PRINT_REFCNT(wdxdisplay9, _d3d9);
assert(_d3d9 != NULL); assert(_d3d9 != NULL);
assert(pD3DCaps->DevCaps & D3DDEVCAPS_HWRASTERIZATION); 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; bool do_sync = sync_video;
if (do_sync && !(pD3DCaps->Caps & D3DCAPS_READ_SCANLINE)) { 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; do_sync = false;
} }
// verify the rendertarget fmt one last time bool check_device_format;
if (FAILED(_d3d9->CheckDeviceFormat(display._card_id, D3DDEVTYPE_HAL, display._display_mode.Format, D3DUSAGE_RENDERTARGET,
D3DRTYPE_SURFACE, presentation_params->BackBufferFormat))) { // check for D3DFMT_A8R8G8B8 first
wdxdisplay9_cat.error() << "device #" << display._card_id << " CheckDeviceFmt failed for surface fmt " << D3DFormatStr(presentation_params->BackBufferFormat) << endl; check_device_format = false;
goto Fallback_to_16bpp_buffers; 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, if (FAILED(_d3d9->CheckDeviceType(display._card_id, D3DDEVTYPE_HAL, display._display_mode.Format, presentation_params->BackBufferFormat,