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SDL_render_d3d.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2011 Sam Lantinga
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This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
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#if SDL_VIDEO_RENDER_D3D && !SDL_RENDER_DISABLED
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#include "../../core/windows/SDL_windows.h"
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#include "SDL_hints.h"
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#include "SDL_loadso.h"
#include "SDL_syswm.h"
#include "../SDL_sysrender.h"
#if SDL_VIDEO_RENDER_D3D
#define D3D_DEBUG_INFO
#include <d3d9.h>
#endif
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#ifdef ASSEMBLE_SHADER
///////////////////////////////////////////////////////////////////////////
// ID3DXBuffer:
// ------------
// The buffer object is used by D3DX to return arbitrary size data.
//
// GetBufferPointer -
// Returns a pointer to the beginning of the buffer.
//
// GetBufferSize -
// Returns the size of the buffer, in bytes.
///////////////////////////////////////////////////////////////////////////
typedef interface ID3DXBuffer ID3DXBuffer;
typedef interface ID3DXBuffer *LPD3DXBUFFER;
// {8BA5FB08-5195-40e2-AC58-0D989C3A0102}
DEFINE_GUID(IID_ID3DXBuffer,
0x8ba5fb08, 0x5195, 0x40e2, 0xac, 0x58, 0xd, 0x98, 0x9c, 0x3a, 0x1, 0x2);
#undef INTERFACE
#define INTERFACE ID3DXBuffer
typedef interface ID3DXBuffer {
const struct ID3DXBufferVtbl FAR* lpVtbl;
} ID3DXBuffer;
typedef const struct ID3DXBufferVtbl ID3DXBufferVtbl;
const struct ID3DXBufferVtbl
{
// IUnknown
STDMETHOD(QueryInterface)(THIS_ REFIID iid, LPVOID *ppv) PURE;
STDMETHOD_(ULONG, AddRef)(THIS) PURE;
STDMETHOD_(ULONG, Release)(THIS) PURE;
// ID3DXBuffer
STDMETHOD_(LPVOID, GetBufferPointer)(THIS) PURE;
STDMETHOD_(DWORD, GetBufferSize)(THIS) PURE;
};
HRESULT WINAPI
D3DXAssembleShader(
LPCSTR pSrcData,
UINT SrcDataLen,
CONST LPVOID* pDefines,
LPVOID pInclude,
DWORD Flags,
LPD3DXBUFFER* ppShader,
LPD3DXBUFFER* ppErrorMsgs);
#endif /* ASSEMBLE_SHADER */
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/* Direct3D renderer implementation */
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static SDL_Renderer *D3D_CreateRenderer(SDL_Window * window, Uint32 flags);
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static void D3D_WindowEvent(SDL_Renderer * renderer,
const SDL_WindowEvent *event);
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static int D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
static int D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels,
int pitch);
static int D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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const SDL_Rect * rect, void **pixels, int *pitch);
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static void D3D_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture);
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static int D3D_UpdateViewport(SDL_Renderer * renderer);
static int D3D_RenderClear(SDL_Renderer * renderer);
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static int D3D_RenderDrawPoints(SDL_Renderer * renderer,
const SDL_Point * points, int count);
static int D3D_RenderDrawLines(SDL_Renderer * renderer,
const SDL_Point * points, int count);
static int D3D_RenderFillRects(SDL_Renderer * renderer,
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const SDL_Rect * rects, int count);
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static int D3D_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
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const SDL_Rect * srcrect, const SDL_Rect * dstrect);
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static int D3D_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
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Uint32 format, void * pixels, int pitch);
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static void D3D_RenderPresent(SDL_Renderer * renderer);
static void D3D_DestroyTexture(SDL_Renderer * renderer,
SDL_Texture * texture);
static void D3D_DestroyRenderer(SDL_Renderer * renderer);
SDL_RenderDriver D3D_RenderDriver = {
D3D_CreateRenderer,
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{
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"direct3d",
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(SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),
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1,
{SDL_PIXELFORMAT_ARGB8888},
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0,
0}
};
typedef struct
{
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void* d3dDLL;
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IDirect3D9 *d3d;
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IDirect3DDevice9 *device;
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UINT adapter;
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D3DPRESENT_PARAMETERS pparams;
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SDL_bool updateSize;
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SDL_bool beginScene;
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D3DTEXTUREFILTERTYPE scaleMode;
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} D3D_RenderData;
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typedef struct
{
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IDirect3DTexture9 *texture;
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D3DTEXTUREFILTERTYPE scaleMode;
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} D3D_TextureData;
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typedef struct
{
float x, y, z;
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DWORD color;
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float u, v;
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} Vertex;
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static void
D3D_SetError(const char *prefix, HRESULT result)
{
const char *error;
switch (result) {
case D3DERR_WRONGTEXTUREFORMAT:
error = "WRONGTEXTUREFORMAT";
break;
case D3DERR_UNSUPPORTEDCOLOROPERATION:
error = "UNSUPPORTEDCOLOROPERATION";
break;
case D3DERR_UNSUPPORTEDCOLORARG:
error = "UNSUPPORTEDCOLORARG";
break;
case D3DERR_UNSUPPORTEDALPHAOPERATION:
error = "UNSUPPORTEDALPHAOPERATION";
break;
case D3DERR_UNSUPPORTEDALPHAARG:
error = "UNSUPPORTEDALPHAARG";
break;
case D3DERR_TOOMANYOPERATIONS:
error = "TOOMANYOPERATIONS";
break;
case D3DERR_CONFLICTINGTEXTUREFILTER:
error = "CONFLICTINGTEXTUREFILTER";
break;
case D3DERR_UNSUPPORTEDFACTORVALUE:
error = "UNSUPPORTEDFACTORVALUE";
break;
case D3DERR_CONFLICTINGRENDERSTATE:
error = "CONFLICTINGRENDERSTATE";
break;
case D3DERR_UNSUPPORTEDTEXTUREFILTER:
error = "UNSUPPORTEDTEXTUREFILTER";
break;
case D3DERR_CONFLICTINGTEXTUREPALETTE:
error = "CONFLICTINGTEXTUREPALETTE";
break;
case D3DERR_DRIVERINTERNALERROR:
error = "DRIVERINTERNALERROR";
break;
case D3DERR_NOTFOUND:
error = "NOTFOUND";
break;
case D3DERR_MOREDATA:
error = "MOREDATA";
break;
case D3DERR_DEVICELOST:
error = "DEVICELOST";
break;
case D3DERR_DEVICENOTRESET:
error = "DEVICENOTRESET";
break;
case D3DERR_NOTAVAILABLE:
error = "NOTAVAILABLE";
break;
case D3DERR_OUTOFVIDEOMEMORY:
error = "OUTOFVIDEOMEMORY";
break;
case D3DERR_INVALIDDEVICE:
error = "INVALIDDEVICE";
break;
case D3DERR_INVALIDCALL:
error = "INVALIDCALL";
break;
case D3DERR_DRIVERINVALIDCALL:
error = "DRIVERINVALIDCALL";
break;
case D3DERR_WASSTILLDRAWING:
error = "WASSTILLDRAWING";
break;
default:
error = "UNKNOWN";
break;
}
SDL_SetError("%s: %s", prefix, error);
}
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static D3DFORMAT
PixelFormatToD3DFMT(Uint32 format)
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{
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switch (format) {
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case SDL_PIXELFORMAT_RGB565:
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return D3DFMT_R5G6B5;
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case SDL_PIXELFORMAT_RGB888:
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return D3DFMT_X8R8G8B8;
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case SDL_PIXELFORMAT_ARGB8888:
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return D3DFMT_A8R8G8B8;
default:
return D3DFMT_UNKNOWN;
}
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}
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static Uint32
D3DFMTToPixelFormat(D3DFORMAT format)
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{
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switch (format) {
case D3DFMT_R5G6B5:
return SDL_PIXELFORMAT_RGB565;
case D3DFMT_X8R8G8B8:
return SDL_PIXELFORMAT_RGB888;
case D3DFMT_A8R8G8B8:
return SDL_PIXELFORMAT_ARGB8888;
default:
return SDL_PIXELFORMAT_UNKNOWN;
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}
}
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static int
D3D_Reset(SDL_Renderer * renderer)
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
HRESULT result;
result = IDirect3DDevice9_Reset(data->device, &data->pparams);
if (FAILED(result)) {
if (result == D3DERR_DEVICELOST) {
/* Don't worry about it, we'll reset later... */
return 0;
} else {
D3D_SetError("Reset()", result);
return -1;
}
}
IDirect3DDevice9_SetVertexShader(data->device, NULL);
IDirect3DDevice9_SetFVF(data->device,
D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_TEX1);
IDirect3DDevice9_SetRenderState(data->device, D3DRS_CULLMODE,
D3DCULL_NONE);
IDirect3DDevice9_SetRenderState(data->device, D3DRS_LIGHTING, FALSE);
return 0;
}
static int
D3D_ActivateRenderer(SDL_Renderer * renderer)
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
HRESULT result;
if (data->updateSize) {
SDL_Window *window = renderer->window;
int w, h;
SDL_GetWindowSize(window, &w, &h);
data->pparams.BackBufferWidth = w;
data->pparams.BackBufferHeight = h;
if (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) {
data->pparams.BackBufferFormat =
PixelFormatToD3DFMT(SDL_GetWindowPixelFormat(window));
} else {
data->pparams.BackBufferFormat = D3DFMT_UNKNOWN;
}
if (D3D_Reset(renderer) < 0) {
return -1;
}
D3D_UpdateViewport(renderer);
data->updateSize = SDL_FALSE;
}
if (data->beginScene) {
result = IDirect3DDevice9_BeginScene(data->device);
if (result == D3DERR_DEVICELOST) {
if (D3D_Reset(renderer) < 0) {
return -1;
}
result = IDirect3DDevice9_BeginScene(data->device);
}
if (FAILED(result)) {
D3D_SetError("BeginScene()", result);
return -1;
}
data->beginScene = SDL_FALSE;
}
return 0;
}
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SDL_Renderer *
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D3D_CreateRenderer(SDL_Window * window, Uint32 flags)
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{
SDL_Renderer *renderer;
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D3D_RenderData *data;
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SDL_SysWMinfo windowinfo;
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HRESULT result;
D3DPRESENT_PARAMETERS pparams;
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IDirect3DSwapChain9 *chain;
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D3DCAPS9 caps;
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Uint32 window_flags;
int w, h;
SDL_DisplayMode fullscreen_mode;
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D3DMATRIX matrix;
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renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
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if (!renderer) {
SDL_OutOfMemory();
return NULL;
}
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data = (D3D_RenderData *) SDL_calloc(1, sizeof(*data));
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if (!data) {
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SDL_free(renderer);
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SDL_OutOfMemory();
return NULL;
}
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data->d3dDLL = SDL_LoadObject("D3D9.DLL");
if (data->d3dDLL) {
IDirect3D9 *(WINAPI * D3DCreate) (UINT SDKVersion);
D3DCreate =
(IDirect3D9 * (WINAPI *) (UINT)) SDL_LoadFunction(data->d3dDLL,
"Direct3DCreate9");
if (D3DCreate) {
data->d3d = D3DCreate(D3D_SDK_VERSION);
}
if (!data->d3d) {
SDL_UnloadObject(data->d3dDLL);
data->d3dDLL = NULL;
}
}
if (!data->d3d) {
SDL_free(renderer);
SDL_free(data);
SDL_SetError("Unable to create Direct3D interface");
return NULL;
}
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renderer->WindowEvent = D3D_WindowEvent;
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renderer->CreateTexture = D3D_CreateTexture;
renderer->UpdateTexture = D3D_UpdateTexture;
renderer->LockTexture = D3D_LockTexture;
renderer->UnlockTexture = D3D_UnlockTexture;
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renderer->UpdateViewport = D3D_UpdateViewport;
renderer->RenderClear = D3D_RenderClear;
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renderer->RenderDrawPoints = D3D_RenderDrawPoints;
renderer->RenderDrawLines = D3D_RenderDrawLines;
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renderer->RenderFillRects = D3D_RenderFillRects;
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renderer->RenderCopy = D3D_RenderCopy;
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renderer->RenderReadPixels = D3D_RenderReadPixels;
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renderer->RenderPresent = D3D_RenderPresent;
renderer->DestroyTexture = D3D_DestroyTexture;
renderer->DestroyRenderer = D3D_DestroyRenderer;
renderer->info = D3D_RenderDriver.info;
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renderer->driverdata = data;
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renderer->info.flags = SDL_RENDERER_ACCELERATED;
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SDL_VERSION(&windowinfo.version);
SDL_GetWindowWMInfo(window, &windowinfo);
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window_flags = SDL_GetWindowFlags(window);
SDL_GetWindowSize(window, &w, &h);
SDL_GetWindowDisplayMode(window, &fullscreen_mode);
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SDL_zero(pparams);
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pparams.hDeviceWindow = windowinfo.info.win.window;
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pparams.BackBufferWidth = w;
pparams.BackBufferHeight = h;
if (window_flags & SDL_WINDOW_FULLSCREEN) {
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pparams.BackBufferFormat =
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PixelFormatToD3DFMT(fullscreen_mode.format);
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} else {
pparams.BackBufferFormat = D3DFMT_UNKNOWN;
}
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pparams.BackBufferCount = 1;
pparams.SwapEffect = D3DSWAPEFFECT_DISCARD;
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if (window_flags & SDL_WINDOW_FULLSCREEN) {
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pparams.Windowed = FALSE;
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pparams.FullScreen_RefreshRateInHz =
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fullscreen_mode.refresh_rate;
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} else {
pparams.Windowed = TRUE;
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pparams.FullScreen_RefreshRateInHz = 0;
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}
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if (flags & SDL_RENDERER_PRESENTVSYNC) {
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pparams.PresentationInterval = D3DPRESENT_INTERVAL_ONE;
} else {
pparams.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
}
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/* FIXME: Which adapter? */
data->adapter = D3DADAPTER_DEFAULT;
IDirect3D9_GetDeviceCaps(data->d3d, data->adapter, D3DDEVTYPE_HAL, &caps);
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result = IDirect3D9_CreateDevice(data->d3d, data->adapter,
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D3DDEVTYPE_HAL,
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pparams.hDeviceWindow,
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(caps.
DevCaps &
D3DDEVCAPS_HWTRANSFORMANDLIGHT) ?
D3DCREATE_HARDWARE_VERTEXPROCESSING :
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D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&pparams, &data->device);
if (FAILED(result)) {
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D3D_DestroyRenderer(renderer);
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D3D_SetError("CreateDevice()", result);
return NULL;
}
data->beginScene = SDL_TRUE;
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data->scaleMode = D3DTEXF_FORCE_DWORD;
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/* Get presentation parameters to fill info */
result = IDirect3DDevice9_GetSwapChain(data->device, 0, &chain);
if (FAILED(result)) {
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D3D_DestroyRenderer(renderer);
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D3D_SetError("GetSwapChain()", result);
return NULL;
}
result = IDirect3DSwapChain9_GetPresentParameters(chain, &pparams);
if (FAILED(result)) {
IDirect3DSwapChain9_Release(chain);
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D3D_DestroyRenderer(renderer);
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D3D_SetError("GetPresentParameters()", result);
return NULL;
}
IDirect3DSwapChain9_Release(chain);
if (pparams.PresentationInterval == D3DPRESENT_INTERVAL_ONE) {
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renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
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}
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data->pparams = pparams;
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IDirect3DDevice9_GetDeviceCaps(data->device, &caps);
renderer->info.max_texture_width = caps.MaxTextureWidth;
renderer->info.max_texture_height = caps.MaxTextureHeight;
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/* Set up parameters for rendering */
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IDirect3DDevice9_SetVertexShader(data->device, NULL);
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IDirect3DDevice9_SetFVF(data->device,
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D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_TEX1);
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IDirect3DDevice9_SetRenderState(data->device, D3DRS_ZENABLE, D3DZB_FALSE);
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IDirect3DDevice9_SetRenderState(data->device, D3DRS_CULLMODE,
D3DCULL_NONE);
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IDirect3DDevice9_SetRenderState(data->device, D3DRS_LIGHTING, FALSE);
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/* Enable color modulation by diffuse color */
IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_COLOROP,
D3DTOP_MODULATE);
IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_COLORARG1,
D3DTA_TEXTURE);
IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_COLORARG2,
D3DTA_DIFFUSE);
/* Enable alpha modulation by diffuse alpha */
IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_ALPHAOP,
D3DTOP_MODULATE);
IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_ALPHAARG1,
D3DTA_TEXTURE);
IDirect3DDevice9_SetTextureStageState(data->device, 0, D3DTSS_ALPHAARG2,
D3DTA_DIFFUSE);
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/* Disable second texture stage, since we're done */
IDirect3DDevice9_SetTextureStageState(data->device, 1, D3DTSS_COLOROP,
D3DTOP_DISABLE);
IDirect3DDevice9_SetTextureStageState(data->device, 1, D3DTSS_ALPHAOP,
D3DTOP_DISABLE);
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/* Set an identity world and view matrix */
matrix.m[0][0] = 1.0f;
matrix.m[0][1] = 0.0f;
matrix.m[0][2] = 0.0f;
matrix.m[0][3] = 0.0f;
matrix.m[1][0] = 0.0f;
matrix.m[1][1] = 1.0f;
matrix.m[1][2] = 0.0f;
matrix.m[1][3] = 0.0f;
matrix.m[2][0] = 0.0f;
matrix.m[2][1] = 0.0f;
matrix.m[2][2] = 1.0f;
matrix.m[2][3] = 0.0f;
matrix.m[3][0] = 0.0f;
matrix.m[3][1] = 0.0f;
matrix.m[3][2] = 0.0f;
matrix.m[3][3] = 1.0f;
IDirect3DDevice9_SetTransform(data->device, D3DTS_WORLD, &matrix);
IDirect3DDevice9_SetTransform(data->device, D3DTS_VIEW, &matrix);
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return renderer;
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}
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static void
D3D_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event)
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{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
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if (event->event == SDL_WINDOWEVENT_SIZE_CHANGED) {
data->updateSize = SDL_TRUE;
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}
}
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static D3DTEXTUREFILTERTYPE
GetScaleQuality(void)
{
const char *hint = SDL_GetHint(SDL_HINT_RENDER_SCALE_QUALITY);
if (!hint || *hint == '0' || SDL_strcasecmp(hint, "nearest") == 0) {
return D3DTEXF_POINT;
} else if (*hint == '1' || SDL_strcasecmp(hint, "linear") == 0) {
return D3DTEXF_LINEAR;
} else {
return D3DTEXF_ANISOTROPIC;
}
}
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static int
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D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
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{
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D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;
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SDL_Window *window = renderer->window;
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D3DFORMAT display_format = renderdata->pparams.BackBufferFormat;
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D3D_TextureData *data;
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D3DPOOL pool;
DWORD usage;
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HRESULT result;
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data = (D3D_TextureData *) SDL_calloc(1, sizeof(*data));
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if (!data) {
SDL_OutOfMemory();
return -1;
}
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data->scaleMode = GetScaleQuality();
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texture->driverdata = data;
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#ifdef USE_DYNAMIC_TEXTURE
if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
pool = D3DPOOL_DEFAULT;
usage = D3DUSAGE_DYNAMIC;
} else
#endif
{
pool = D3DPOOL_MANAGED;
usage = 0;
}
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590
result =
IDirect3DDevice9_CreateTexture(renderdata->device, texture->w,
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593
texture->h, 1, usage,
PixelFormatToD3DFMT(texture->format),
pool, &data->texture, NULL);
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595
596
597
598
599
if (FAILED(result)) {
D3D_SetError("CreateTexture()", result);
return -1;
}
return 0;
600
601
602
}
static int
603
604
D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels, int pitch)
605
{
606
607
D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;
608
609
610
611
612
613
RECT d3drect;
D3DLOCKED_RECT locked;
const Uint8 *src;
Uint8 *dst;
int row, length;
HRESULT result;
614
615
616
617
618
#ifdef USE_DYNAMIC_TEXTURE
if (texture->access == SDL_TEXTUREACCESS_STREAMING &&
rect->x == 0 && rect->y == 0 &&
rect->w == texture->w && rect->h == texture->h) {
619
result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, NULL, D3DLOCK_DISCARD);
620
621
622
623
624
625
626
} else
#endif
{
d3drect.left = rect->x;
d3drect.right = rect->x + rect->w;
d3drect.top = rect->y;
d3drect.bottom = rect->y + rect->h;
627
result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);
628
}
629
630
631
632
633
if (FAILED(result)) {
D3D_SetError("LockRect()", result);
return -1;
}
634
635
636
637
src = pixels;
dst = locked.pBits;
length = rect->w * SDL_BYTESPERPIXEL(texture->format);
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640
641
642
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644
645
if (length == pitch && length == locked.Pitch) {
SDL_memcpy(dst, src, length*rect->h);
} else {
for (row = 0; row < rect->h; ++row) {
SDL_memcpy(dst, src, length);
src += pitch;
dst += locked.Pitch;
}
646
}
647
648
649
IDirect3DTexture9_UnlockRect(data->texture, 0);
return 0;
650
}
651
652
static int
653
D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
654
const SDL_Rect * rect, void **pixels, int *pitch)
655
{
656
D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
657
658
659
RECT d3drect;
D3DLOCKED_RECT locked;
HRESULT result;
660
661
662
663
664
d3drect.left = rect->x;
d3drect.right = rect->x + rect->w;
d3drect.top = rect->y;
d3drect.bottom = rect->y + rect->h;
665
666
667
668
669
result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);
if (FAILED(result)) {
D3D_SetError("LockRect()", result);
return -1;
670
}
671
672
673
*pixels = locked.pBits;
*pitch = locked.Pitch;
return 0;
674
675
676
}
static void
677
D3D_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
678
{
679
D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
680
681
IDirect3DTexture9_UnlockRect(data->texture, 0);
682
683
}
684
685
static int
D3D_UpdateViewport(SDL_Renderer * renderer)
686
687
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
688
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690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
D3DVIEWPORT9 viewport;
D3DMATRIX matrix;
/* Set the viewport */
viewport.X = renderer->viewport.x;
viewport.Y = renderer->viewport.y;
viewport.Width = renderer->viewport.w;
viewport.Height = renderer->viewport.h;
viewport.MinZ = 0.0f;
viewport.MaxZ = 1.0f;
IDirect3DDevice9_SetViewport(data->device, &viewport);
/* Set an orthographic projection matrix */
matrix.m[0][0] = 2.0f / renderer->viewport.w;
matrix.m[0][1] = 0.0f;
matrix.m[0][2] = 0.0f;
matrix.m[0][3] = 0.0f;
matrix.m[1][0] = 0.0f;
matrix.m[1][1] = -2.0f / renderer->viewport.h;
matrix.m[1][2] = 0.0f;
matrix.m[1][3] = 0.0f;
matrix.m[2][0] = 0.0f;
matrix.m[2][1] = 0.0f;
matrix.m[2][2] = 1.0f;
matrix.m[2][3] = 0.0f;
matrix.m[3][0] = -1.0f;
matrix.m[3][1] = 1.0f;
matrix.m[3][2] = 0.0f;
matrix.m[3][3] = 1.0f;
IDirect3DDevice9_SetTransform(data->device, D3DTS_PROJECTION, &matrix);
718
719
720
return 0;
}
721
722
723
724
725
726
727
728
729
730
static int
D3D_RenderClear(SDL_Renderer * renderer)
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
DWORD color;
HRESULT result;
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
731
}
732
733
734
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
735
736
737
738
739
740
741
742
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746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
/* Don't reset the viewport if we don't have to! */
if (!renderer->viewport.x && !renderer->viewport.y &&
renderer->viewport.w == data->pparams.BackBufferWidth &&
renderer->viewport.h == data->pparams.BackBufferHeight) {
result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0);
} else {
D3DVIEWPORT9 viewport;
/* Clear is defined to clear the entire render target */
viewport.X = 0;
viewport.Y = 0;
viewport.Width = data->pparams.BackBufferWidth;
viewport.Height = data->pparams.BackBufferHeight;
viewport.MinZ = 0.0f;
viewport.MaxZ = 1.0f;
IDirect3DDevice9_SetViewport(data->device, &viewport);
result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0);
/* Reset the viewport */
viewport.X = renderer->viewport.x;
viewport.Y = renderer->viewport.y;
viewport.Width = renderer->viewport.w;
viewport.Height = renderer->viewport.h;
viewport.MinZ = 0.0f;
viewport.MaxZ = 1.0f;
IDirect3DDevice9_SetViewport(data->device, &viewport);
}
763
764
765
766
767
768
if (FAILED(result)) {
D3D_SetError("Clear()", result);
return -1;
}
return 0;
769
770
}
771
static void
772
D3D_SetBlendMode(D3D_RenderData * data, int blendMode)
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
{
switch (blendMode) {
case SDL_BLENDMODE_NONE:
IDirect3DDevice9_SetRenderState(data->device, D3DRS_ALPHABLENDENABLE,
FALSE);
break;
case SDL_BLENDMODE_BLEND:
IDirect3DDevice9_SetRenderState(data->device, D3DRS_ALPHABLENDENABLE,
TRUE);
IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLEND,
D3DBLEND_SRCALPHA);
IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLEND,
D3DBLEND_INVSRCALPHA);
break;
case SDL_BLENDMODE_ADD:
IDirect3DDevice9_SetRenderState(data->device, D3DRS_ALPHABLENDENABLE,
TRUE);
IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLEND,
D3DBLEND_SRCALPHA);
IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLEND,
D3DBLEND_ONE);
break;
795
796
797
798
799
800
801
802
case SDL_BLENDMODE_MOD:
IDirect3DDevice9_SetRenderState(data->device, D3DRS_ALPHABLENDENABLE,
TRUE);
IDirect3DDevice9_SetRenderState(data->device, D3DRS_SRCBLEND,
D3DBLEND_ZERO);
IDirect3DDevice9_SetRenderState(data->device, D3DRS_DESTBLEND,
D3DBLEND_SRCCOLOR);
break;
803
804
805
806
}
}
static int
807
808
D3D_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
int count)
809
810
811
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
DWORD color;
812
813
Vertex *vertices;
int i;
814
815
HRESULT result;
816
817
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
818
819
820
821
}
D3D_SetBlendMode(data, renderer->blendMode);
822
823
824
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
825
826
827
828
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
829
830
831
832
833
834
835
836
837
838
839
840
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
vertices = SDL_stack_alloc(Vertex, count);
for (i = 0; i < count; ++i) {
vertices[i].x = (float) points[i].x;
vertices[i].y = (float) points[i].y;
vertices[i].z = 0.0f;
vertices[i].color = color;
vertices[i].u = 0.0f;
vertices[i].v = 0.0f;
}
841
result =
842
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, count,
843
vertices, sizeof(*vertices));
844
SDL_stack_free(vertices);
845
846
847
848
849
850
851
852
if (FAILED(result)) {
D3D_SetError("DrawPrimitiveUP()", result);
return -1;
}
return 0;
}
static int
853
854
D3D_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
int count)
855
856
857
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
DWORD color;
858
859
Vertex *vertices;
int i;
860
861
HRESULT result;
862
863
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
864
865
866
867
}
D3D_SetBlendMode(data, renderer->blendMode);
868
869
870
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
871
872
873
874
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
875
876
877
878
879
880
881
882
883
884
885
886
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
vertices = SDL_stack_alloc(Vertex, count);
for (i = 0; i < count; ++i) {
vertices[i].x = (float) points[i].x;
vertices[i].y = (float) points[i].y;
vertices[i].z = 0.0f;
vertices[i].color = color;
vertices[i].u = 0.0f;
vertices[i].v = 0.0f;
}
887
result =
888
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINESTRIP, count-1,
889
vertices, sizeof(*vertices));
890
891
892
893
894
895
896
897
898
/* DirectX 9 has the same line rasterization semantics as GDI,
so we need to close the endpoint of the line */
if (points[0].x != points[count-1].x || points[0].y != points[count-1].y) {
vertices[0].x = (float) points[count-1].x;
vertices[0].y = (float) points[count-1].y;
result = IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, 1, vertices, sizeof(*vertices));
}
899
SDL_stack_free(vertices);
900
901
902
903
904
905
906
if (FAILED(result)) {
D3D_SetError("DrawPrimitiveUP()", result);
return -1;
}
return 0;
}
907
static int
908
D3D_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect * rects,
909
int count)
910
{
911
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
912
DWORD color;
913
914
int i;
float minx, miny, maxx, maxy;
915
Vertex vertices[4];
916
HRESULT result;
917
918
919
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
920
}
921
922
923
D3D_SetBlendMode(data, renderer->blendMode);
924
925
926
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
927
928
929
930
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
931
932
933
934
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
for (i = 0; i < count; ++i) {
935
const SDL_Rect *rect = &rects[i];
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
minx = (float) rect->x;
miny = (float) rect->y;
maxx = (float) rect->x + rect->w;
maxy = (float) rect->y + rect->h;
vertices[0].x = minx;
vertices[0].y = miny;
vertices[0].z = 0.0f;
vertices[0].color = color;
vertices[0].u = 0.0f;
vertices[0].v = 0.0f;
vertices[1].x = maxx;
vertices[1].y = miny;
vertices[1].z = 0.0f;
vertices[1].color = color;
vertices[1].u = 0.0f;
vertices[1].v = 0.0f;
vertices[2].x = maxx;
vertices[2].y = maxy;
vertices[2].z = 0.0f;
vertices[2].color = color;
vertices[2].u = 0.0f;
vertices[2].v = 0.0f;
vertices[3].x = minx;
vertices[3].y = maxy;
vertices[3].z = 0.0f;
vertices[3].color = color;
vertices[3].u = 0.0f;
vertices[3].v = 0.0f;
result =
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_TRIANGLEFAN,
2, vertices, sizeof(*vertices));
if (FAILED(result)) {
D3D_SetError("DrawPrimitiveUP()", result);
return -1;
}
977
}
978
979
980
981
return 0;
}
static int
982
D3D_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
983
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
984
{
985
986
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
D3D_TextureData *texturedata = (D3D_TextureData *) texture->driverdata;
987
LPDIRECT3DPIXELSHADER9 shader = NULL;
988
float minx, miny, maxx, maxy;
989
float minu, maxu, minv, maxv;
990
DWORD color;
991
992
Vertex vertices[4];
HRESULT result;
993
994
995
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
996
}
997
998
999
1000
minx = (float) dstrect->x - 0.5f;
miny = (float) dstrect->y - 0.5f;
maxx = (float) dstrect->x + dstrect->w - 0.5f;