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bsnes/higan/ruby/video/direct3d.cpp

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#undef interface
#define interface struct
#include <d3d9.h>
#include <d3dx9.h>
#undef interface
#define D3DVERTEX (D3DFVF_XYZRHW | D3DFVF_TEX1)
typedef HRESULT (__stdcall* EffectProc)(LPDIRECT3DDEVICE9, LPCVOID, UINT, D3DXMACRO const*, LPD3DXINCLUDE, DWORD, LPD3DXEFFECTPOOL, LPD3DXEFFECT*, LPD3DXBUFFER*);
typedef HRESULT (__stdcall* TextureProc)(LPDIRECT3DDEVICE9, LPCTSTR, LPDIRECT3DTEXTURE9*);
namespace ruby {
class pVideoD3D {
public:
LPDIRECT3D9 lpd3d;
LPDIRECT3DDEVICE9 device;
LPDIRECT3DVERTEXBUFFER9 vertex_buffer;
LPDIRECT3DVERTEXBUFFER9* vertex_ptr;
D3DPRESENT_PARAMETERS presentation;
D3DSURFACE_DESC d3dsd;
D3DLOCKED_RECT d3dlr;
D3DRASTER_STATUS d3drs;
D3DCAPS9 d3dcaps;
LPDIRECT3DTEXTURE9 texture;
LPDIRECT3DSURFACE9 surface;
LPD3DXEFFECT effect;
string shader_source_markup;
bool lost;
unsigned iwidth, iheight;
struct d3dvertex {
float x, y, z, rhw; //screen coords
float u, v; //texture coords
};
struct {
uint32_t t_usage, v_usage;
uint32_t t_pool, v_pool;
uint32_t lock;
uint32_t filter;
} flags;
struct {
bool dynamic; //device supports dynamic textures
bool shader; //device supports pixel shaders
} caps;
struct {
HWND handle;
bool synchronize;
unsigned filter;
unsigned width;
unsigned height;
} settings;
struct {
unsigned width;
unsigned height;
} state;
bool cap(const string& name) {
if(name == Video::Handle) return true;
if(name == Video::Synchronize) return true;
if(name == Video::Filter) return true;
if(name == Video::Shader) return false;
return false;
}
any get(const string& name) {
if(name == Video::Handle) return (uintptr_t)settings.handle;
if(name == Video::Synchronize) return settings.synchronize;
if(name == Video::Filter) return settings.filter;
return false;
}
bool set(const string& name, const any& value) {
if(name == Video::Handle) {
settings.handle = (HWND)any_cast<uintptr_t>(value);
return true;
}
if(name == Video::Synchronize) {
settings.synchronize = any_cast<bool>(value);
return true;
}
if(name == Video::Filter) {
settings.filter = any_cast<unsigned>(value);
if(lpd3d) update_filter();
return true;
}
if(name == Video::Shader) {
return false;
set_shader(any_cast<const char*>(value));
return true;
}
return false;
}
bool recover() {
if(!device) return false;
if(lost) {
release_resources();
if(device->Reset(&presentation) != D3D_OK) return false;
}
lost = false;
device->SetDialogBoxMode(false);
device->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1);
device->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
device->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
device->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1);
device->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
device->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);
device->SetRenderState(D3DRS_LIGHTING, false);
device->SetRenderState(D3DRS_ZENABLE, false);
device->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
device->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
device->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
device->SetRenderState(D3DRS_ALPHABLENDENABLE, false);
device->SetVertexShader(NULL);
device->SetFVF(D3DVERTEX);
device->CreateVertexBuffer(sizeof(d3dvertex) * 4, flags.v_usage, D3DVERTEX, (D3DPOOL)flags.v_pool, &vertex_buffer, NULL);
iwidth = 0;
iheight = 0;
resize(settings.width = 256, settings.height = 256);
update_filter();
clear();
return true;
}
unsigned rounded_power_of_two(unsigned n) {
n--;
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
return n + 1;
}
void resize(unsigned width, unsigned height) {
if(iwidth >= width && iheight >= height) return;
iwidth = rounded_power_of_two(max(width, iwidth ));
iheight = rounded_power_of_two(max(height, iheight));
if(d3dcaps.MaxTextureWidth < iwidth || d3dcaps.MaxTextureWidth < iheight) {
//TODO: attempt to handle this more gracefully
return;
}
if(texture) texture->Release();
device->CreateTexture(iwidth, iheight, 1, flags.t_usage, D3DFMT_X8R8G8B8, (D3DPOOL)flags.t_pool, &texture, NULL);
}
void update_filter() {
if(!device) return;
if(lost && !recover()) return;
flags.filter = (settings.filter == Video::FilterNearest ? D3DTEXF_POINT : D3DTEXF_LINEAR);
device->SetSamplerState(0, D3DSAMP_MINFILTER, flags.filter);
device->SetSamplerState(0, D3DSAMP_MAGFILTER, flags.filter);
}
// Vertex format:
//
// 0----------1
// | /|
// | / |
// | / |
// | / |
// | / |
// 2----------3
//
// (x,y) screen coords, in pixels
// (u,v) texture coords, betweeen 0.0 (top, left) to 1.0 (bottom, right)
void set_vertex(
uint32_t px, uint32_t py, uint32_t pw, uint32_t ph,
uint32_t tw, uint32_t th,
uint32_t x, uint32_t y, uint32_t w, uint32_t h
) {
d3dvertex vertex[4];
vertex[0].x = vertex[2].x = (double)(x - 0.5);
vertex[1].x = vertex[3].x = (double)(x + w - 0.5);
vertex[0].y = vertex[1].y = (double)(y - 0.5);
vertex[2].y = vertex[3].y = (double)(y + h - 0.5);
//Z-buffer and RHW are unused for 2D blit, set to normal values
vertex[0].z = vertex[1].z = vertex[2].z = vertex[3].z = 0.0;
vertex[0].rhw = vertex[1].rhw = vertex[2].rhw = vertex[3].rhw = 1.0;
double rw = (double)w / (double)pw * (double)tw;
double rh = (double)h / (double)ph * (double)th;
vertex[0].u = vertex[2].u = (double)(px ) / rw;
vertex[1].u = vertex[3].u = (double)(px + w) / rw;
vertex[0].v = vertex[1].v = (double)(py ) / rh;
vertex[2].v = vertex[3].v = (double)(py + h) / rh;
vertex_buffer->Lock(0, sizeof(d3dvertex) * 4, (void**)&vertex_ptr, 0);
memcpy(vertex_ptr, vertex, sizeof(d3dvertex) * 4);
vertex_buffer->Unlock();
device->SetStreamSource(0, vertex_buffer, 0, sizeof(d3dvertex));
}
void clear() {
if(lost && !recover()) return;
texture->GetLevelDesc(0, &d3dsd);
texture->GetSurfaceLevel(0, &surface);
if(surface) {
device->ColorFill(surface, 0, D3DCOLOR_XRGB(0x00, 0x00, 0x00));
surface->Release();
surface = nullptr;
}
//clear primary display and all backbuffers
for(unsigned i = 0; i < 3; i++) {
device->Clear(0, 0, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0x00, 0x00, 0x00), 1.0f, 0);
device->Present(0, 0, 0, 0);
}
}
bool lock(uint32_t*& data, unsigned& pitch, unsigned width, unsigned height) {
if(lost && !recover()) return false;
if(width != settings.width || height != settings.height) {
resize(settings.width = width, settings.height = height);
}
texture->GetLevelDesc(0, &d3dsd);
texture->GetSurfaceLevel(0, &surface);
surface->LockRect(&d3dlr, 0, flags.lock);
pitch = d3dlr.Pitch;
return data = (uint32_t*)d3dlr.pBits;
}
void unlock() {
surface->UnlockRect();
surface->Release();
surface = nullptr;
}
void refresh() {
if(lost && !recover()) return;
RECT rd, rs; //dest, source rectangles
GetClientRect(settings.handle, &rd);
SetRect(&rs, 0, 0, settings.width, settings.height);
//if output size changed, driver must be re-initialized.
//failure to do so causes scaling issues on some video drivers.
if(state.width != rd.right || state.height != rd.bottom) {
init();
set_shader(shader_source_markup);
return;
}
if(caps.shader && effect) {
device->BeginScene();
set_vertex(0, 0, settings.width, settings.height, iwidth, iheight, 0, 0, rd.right, rd.bottom);
D3DXVECTOR4 rubyTextureSize;
rubyTextureSize.x = iwidth;
rubyTextureSize.y = iheight;
rubyTextureSize.z = 1.0 / iheight;
rubyTextureSize.w = 1.0 / iwidth;
effect->SetVector("rubyTextureSize", &rubyTextureSize);
D3DXVECTOR4 rubyInputSize;
rubyInputSize.x = settings.width;
rubyInputSize.y = settings.height;
rubyInputSize.z = 1.0 / settings.height;
rubyInputSize.w = 1.0 / settings.width;
effect->SetVector("rubyInputSize", &rubyInputSize);
D3DXVECTOR4 rubyOutputSize;
rubyOutputSize.x = rd.right;
rubyOutputSize.y = rd.bottom;
rubyOutputSize.z = 1.0 / rd.bottom;
rubyOutputSize.w = 1.0 / rd.right;
effect->SetVector("rubyOutputSize", &rubyOutputSize);
UINT passes;
effect->Begin(&passes, 0);
effect->SetTexture("rubyTexture", texture);
device->SetTexture(0, texture);
for(unsigned pass = 0; pass < passes; pass++) {
effect->BeginPass(pass);
device->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2);
effect->EndPass();
}
effect->End();
device->EndScene();
} else {
device->BeginScene();
set_vertex(0, 0, settings.width, settings.height, iwidth, iheight, 0, 0, rd.right, rd.bottom);
device->SetTexture(0, texture);
device->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2);
device->EndScene();
}
if(settings.synchronize) {
D3DRASTER_STATUS status;
//wait for a previous vblank to finish, if necessary
while(true) {
device->GetRasterStatus(0, &status);
if(status.InVBlank == false) break;
}
//wait for next vblank to begin
while(true) {
device->GetRasterStatus(0, &status);
if(status.InVBlank == true) break;
}
}
if(device->Present(0, 0, 0, 0) == D3DERR_DEVICELOST) lost = true;
}
void set_shader(const char* source) {
if(!caps.shader) return;
if(effect) {
effect->Release();
effect = NULL;
}
if(!source || !*source) {
shader_source_markup = "";
return;
}
shader_source_markup = source;
XML::Document document(shader_source_markup);
bool is_hlsl = document["shader"]["language"].data == "HLSL";
string shader_source = document["shader"]["source"].data;
if(shader_source == "") return;
HMODULE d3dx;
for(unsigned i = 0; i < 256; i++) {
char t[256];
sprintf(t, "d3dx9_%u.dll", i);
d3dx = LoadLibraryW(utf16_t(t));
if(d3dx) break;
}
if(!d3dx) d3dx = LoadLibraryW(L"d3dx9.dll");
if(!d3dx) return;
EffectProc effectProc = (EffectProc)GetProcAddress(d3dx, "D3DXCreateEffect");
TextureProc textureProc = (TextureProc)GetProcAddress(d3dx, "D3DXCreateTextureFromFileA");
LPD3DXBUFFER pBufferErrors = NULL;
effectProc(device, shader_source, lstrlenA(shader_source), NULL, NULL, 0, NULL, &effect, &pBufferErrors);
D3DXHANDLE hTech;
effect->FindNextValidTechnique(NULL, &hTech);
effect->SetTechnique(hTech);
}
bool init() {
term();
RECT rd;
GetClientRect(settings.handle, &rd);
state.width = rd.right;
state.height = rd.bottom;
lpd3d = Direct3DCreate9(D3D_SDK_VERSION);
if(!lpd3d) return false;
memset(&presentation, 0, sizeof(presentation));
presentation.Flags = D3DPRESENTFLAG_VIDEO;
presentation.SwapEffect = D3DSWAPEFFECT_FLIP;
presentation.hDeviceWindow = settings.handle;
presentation.BackBufferCount = 1;
presentation.MultiSampleType = D3DMULTISAMPLE_NONE;
presentation.MultiSampleQuality = 0;
presentation.EnableAutoDepthStencil = false;
presentation.AutoDepthStencilFormat = D3DFMT_UNKNOWN;
presentation.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
presentation.Windowed = true;
presentation.BackBufferFormat = D3DFMT_UNKNOWN;
presentation.BackBufferWidth = 0;
presentation.BackBufferHeight = 0;
if(lpd3d->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, settings.handle,
D3DCREATE_FPU_PRESERVE | D3DCREATE_SOFTWARE_VERTEXPROCESSING, &presentation, &device) != D3D_OK) {
return false;
}
device->GetDeviceCaps(&d3dcaps);
caps.dynamic = bool(d3dcaps.Caps2 & D3DCAPS2_DYNAMICTEXTURES);
caps.shader = d3dcaps.PixelShaderVersion > D3DPS_VERSION(1, 4);
if(caps.dynamic == true) {
flags.t_usage = D3DUSAGE_DYNAMIC;
flags.v_usage = D3DUSAGE_WRITEONLY | D3DUSAGE_DYNAMIC;
flags.t_pool = D3DPOOL_DEFAULT;
flags.v_pool = D3DPOOL_DEFAULT;
flags.lock = D3DLOCK_NOSYSLOCK | D3DLOCK_DISCARD;
} else {
flags.t_usage = 0;
flags.v_usage = D3DUSAGE_WRITEONLY;
flags.t_pool = D3DPOOL_MANAGED;
flags.v_pool = D3DPOOL_MANAGED;
flags.lock = D3DLOCK_NOSYSLOCK | D3DLOCK_DISCARD;
}
lost = false;
recover();
return true;
}
void release_resources() {
if(effect) { effect->Release(); effect = 0; }
if(vertex_buffer) { vertex_buffer->Release(); vertex_buffer = 0; }
if(surface) { surface->Release(); surface = 0; }
if(texture) { texture->Release(); texture = 0; }
}
void term() {
release_resources();
if(device) { device->Release(); device = 0; }
if(lpd3d) { lpd3d->Release(); lpd3d = 0; }
}
pVideoD3D() {
effect = 0;
vertex_buffer = 0;
surface = 0;
texture = 0;
device = 0;
lpd3d = 0;
lost = true;
settings.handle = 0;
settings.synchronize = false;
settings.filter = Video::FilterLinear;
}
};
DeclareVideo(D3D)
};
#undef D3DVERTEX
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