This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
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"
#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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"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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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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} D3D_RenderData;
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typedef struct
{
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IDirect3DTexture9 *texture;
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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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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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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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static Uint32
D3DFMTToPixelFormat(D3DFORMAT format)
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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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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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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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/* 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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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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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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D3D_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
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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;
}
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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result =
IDirect3DDevice9_CreateTexture(renderdata->device, texture->w,
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texture->h, 1, usage,
PixelFormatToD3DFMT(texture->format),
pool, &data->texture, NULL);
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if (FAILED(result)) {
D3D_SetError("CreateTexture()", result);
return -1;
}
return 0;
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}
static int
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D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels, int pitch)
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D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;
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RECT d3drect;
D3DLOCKED_RECT locked;
const Uint8 *src;
Uint8 *dst;
int row, length;
HRESULT result;
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#ifdef USE_DYNAMIC_TEXTURE
if (texture->access == SDL_TEXTUREACCESS_STREAMING &&
rect->x == 0 && rect->y == 0 &&
rect->w == texture->w && rect->h == texture->h) {
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result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, NULL, D3DLOCK_DISCARD);
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602
603
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605
606
607
} else
#endif
{
d3drect.left = rect->x;
d3drect.right = rect->x + rect->w;
d3drect.top = rect->y;
d3drect.bottom = rect->y + rect->h;
608
result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);
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612
613
614
if (FAILED(result)) {
D3D_SetError("LockRect()", result);
return -1;
}
616
617
618
src = pixels;
dst = locked.pBits;
length = rect->w * SDL_BYTESPERPIXEL(texture->format);
619
620
621
622
623
624
625
626
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;
}
628
629
630
IDirect3DTexture9_UnlockRect(data->texture, 0);
return 0;
632
633
static int
634
D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
635
const SDL_Rect * rect, void **pixels, int *pitch)
637
D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
638
639
640
RECT d3drect;
D3DLOCKED_RECT locked;
HRESULT result;
642
643
644
645
d3drect.left = rect->x;
d3drect.right = rect->x + rect->w;
d3drect.top = rect->y;
d3drect.bottom = rect->y + rect->h;
647
648
649
650
result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);
if (FAILED(result)) {
D3D_SetError("LockRect()", result);
return -1;
652
653
654
*pixels = locked.pBits;
*pitch = locked.Pitch;
return 0;
655
656
657
}
static void
658
D3D_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
660
D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
662
IDirect3DTexture9_UnlockRect(data->texture, 0);
665
666
static int
D3D_UpdateViewport(SDL_Renderer * renderer)
667
668
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
669
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674
675
676
677
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680
681
682
683
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685
686
687
688
689
690
691
692
693
694
695
696
697
698
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);
700
701
return 0;
}
703
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705
706
707
708
709
710
711
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;
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715
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
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737
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740
741
742
743
/* 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);
}
744
745
746
747
748
749
if (FAILED(result)) {
D3D_SetError("Clear()", result);
return -1;
}
return 0;
752
static void
753
D3D_SetBlendMode(D3D_RenderData * data, int blendMode)
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
{
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;
776
777
778
779
780
781
782
783
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;
784
785
786
787
}
}
static int
788
789
D3D_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
int count)
790
791
792
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
DWORD color;
793
794
Vertex *vertices;
int i;
795
796
HRESULT result;
797
798
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
799
800
801
802
}
D3D_SetBlendMode(data, renderer->blendMode);
803
804
805
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
806
807
808
809
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
810
811
812
813
814
815
816
817
818
819
820
821
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;
}
822
result =
823
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, count,
824
vertices, sizeof(*vertices));
825
SDL_stack_free(vertices);
826
827
828
829
830
831
832
833
if (FAILED(result)) {
D3D_SetError("DrawPrimitiveUP()", result);
return -1;
}
return 0;
}
static int
834
835
D3D_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
int count)
836
837
838
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
DWORD color;
839
840
Vertex *vertices;
int i;
841
842
HRESULT result;
843
844
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
845
846
847
848
}
D3D_SetBlendMode(data, renderer->blendMode);
849
850
851
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
852
853
854
855
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
856
857
858
859
860
861
862
863
864
865
866
867
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;
}
868
result =
869
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINESTRIP, count-1,
870
vertices, sizeof(*vertices));
871
872
873
874
875
876
877
878
879
/* 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));
}
880
SDL_stack_free(vertices);
881
882
883
884
885
886
887
if (FAILED(result)) {
D3D_SetError("DrawPrimitiveUP()", result);
return -1;
}
return 0;
}
888
static int
889
D3D_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect * rects,
890
int count)
892
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
893
DWORD color;
894
895
int i;
float minx, miny, maxx, maxy;
896
Vertex vertices[4];
897
HRESULT result;
899
900
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
903
904
D3D_SetBlendMode(data, renderer->blendMode);
905
906
907
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
908
909
910
911
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
912
913
914
915
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
for (i = 0; i < count; ++i) {
916
const SDL_Rect *rect = &rects[i];
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
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;
}
959
960
961
962
return 0;
}
static int
963
D3D_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
964
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
966
967
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
D3D_TextureData *texturedata = (D3D_TextureData *) texture->driverdata;
968
LPDIRECT3DPIXELSHADER9 shader = NULL;
969
float minx, miny, maxx, maxy;
970
float minu, maxu, minv, maxv;
971
DWORD color;
972
973
Vertex vertices[4];
HRESULT result;
975
976
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
979
980
981
982
minx = (float) dstrect->x - 0.5f;
miny = (float) dstrect->y - 0.5f;
maxx = (float) dstrect->x + dstrect->w - 0.5f;
maxy = (float) dstrect->y + dstrect->h - 0.5f;
984
985
986
987
minu = (float) srcrect->x / texture->w;
maxu = (float) (srcrect->x + srcrect->w) / texture->w;
minv = (float) srcrect->y / texture->h;
maxv = (float) (srcrect->y + srcrect->h) / texture->h;
989
990
color = D3DCOLOR_ARGB(texture->a, texture->r, texture->g, texture->b);
991
992
993
vertices[0].x = minx;
vertices[0].y = miny;
vertices[0].z = 0.0f;
994
vertices[0].color = color;
995
996
997
vertices[0].u = minu;
vertices[0].v = minv;
998
999
1000
vertices[1].x = maxx;
vertices[1].y = miny;
vertices[1].z = 0.0f;