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SDL_render_d3d.c
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/*
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Simple DirectMedia Layer
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
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*/
#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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588
589
result =
IDirect3DDevice9_CreateTexture(renderdata->device, texture->w,
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591
592
texture->h, 1, usage,
PixelFormatToD3DFMT(texture->format),
pool, &data->texture, NULL);
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594
595
596
597
598
if (FAILED(result)) {
D3D_SetError("CreateTexture()", result);
return -1;
}
return 0;
599
600
601
}
static int
602
603
D3D_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels, int pitch)
604
{
605
606
D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
D3D_RenderData *renderdata = (D3D_RenderData *) renderer->driverdata;
607
608
609
610
611
612
RECT d3drect;
D3DLOCKED_RECT locked;
const Uint8 *src;
Uint8 *dst;
int row, length;
HRESULT result;
613
614
615
616
617
#ifdef USE_DYNAMIC_TEXTURE
if (texture->access == SDL_TEXTUREACCESS_STREAMING &&
rect->x == 0 && rect->y == 0 &&
rect->w == texture->w && rect->h == texture->h) {
618
result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, NULL, D3DLOCK_DISCARD);
619
620
621
622
623
624
625
} else
#endif
{
d3drect.left = rect->x;
d3drect.right = rect->x + rect->w;
d3drect.top = rect->y;
d3drect.bottom = rect->y + rect->h;
626
result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);
627
}
628
629
630
631
632
if (FAILED(result)) {
D3D_SetError("LockRect()", result);
return -1;
}
633
634
635
636
src = pixels;
dst = locked.pBits;
length = rect->w * SDL_BYTESPERPIXEL(texture->format);
637
638
639
640
641
642
643
644
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;
}
645
}
646
647
648
IDirect3DTexture9_UnlockRect(data->texture, 0);
return 0;
649
}
650
651
static int
652
D3D_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
653
const SDL_Rect * rect, void **pixels, int *pitch)
654
{
655
D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
656
657
658
RECT d3drect;
D3DLOCKED_RECT locked;
HRESULT result;
659
660
661
662
663
d3drect.left = rect->x;
d3drect.right = rect->x + rect->w;
d3drect.top = rect->y;
d3drect.bottom = rect->y + rect->h;
664
665
666
667
668
result = IDirect3DTexture9_LockRect(data->texture, 0, &locked, &d3drect, 0);
if (FAILED(result)) {
D3D_SetError("LockRect()", result);
return -1;
669
}
670
671
672
*pixels = locked.pBits;
*pitch = locked.Pitch;
return 0;
673
674
675
}
static void
676
D3D_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
677
{
678
D3D_TextureData *data = (D3D_TextureData *) texture->driverdata;
679
680
IDirect3DTexture9_UnlockRect(data->texture, 0);
681
682
}
683
684
static int
D3D_UpdateViewport(SDL_Renderer * renderer)
685
686
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
687
688
689
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
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);
717
718
719
return 0;
}
720
721
722
723
724
725
726
727
728
729
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;
730
}
731
732
733
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
/* 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);
}
762
763
764
765
766
767
if (FAILED(result)) {
D3D_SetError("Clear()", result);
return -1;
}
return 0;
768
769
}
770
static void
771
D3D_SetBlendMode(D3D_RenderData * data, int blendMode)
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
{
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;
794
795
796
797
798
799
800
801
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;
802
803
804
805
}
}
static int
806
807
D3D_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
int count)
808
809
810
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
DWORD color;
811
812
Vertex *vertices;
int i;
813
814
HRESULT result;
815
816
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
817
818
819
820
}
D3D_SetBlendMode(data, renderer->blendMode);
821
822
823
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
824
825
826
827
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
828
829
830
831
832
833
834
835
836
837
838
839
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;
}
840
result =
841
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, count,
842
vertices, sizeof(*vertices));
843
SDL_stack_free(vertices);
844
845
846
847
848
849
850
851
if (FAILED(result)) {
D3D_SetError("DrawPrimitiveUP()", result);
return -1;
}
return 0;
}
static int
852
853
D3D_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
int count)
854
855
856
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
DWORD color;
857
858
Vertex *vertices;
int i;
859
860
HRESULT result;
861
862
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
863
864
865
866
}
D3D_SetBlendMode(data, renderer->blendMode);
867
868
869
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
870
871
872
873
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
874
875
876
877
878
879
880
881
882
883
884
885
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;
}
886
result =
887
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINESTRIP, count-1,
888
vertices, sizeof(*vertices));
889
890
891
892
893
894
895
896
897
/* 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));
}
898
SDL_stack_free(vertices);
899
900
901
902
903
904
905
if (FAILED(result)) {
D3D_SetError("DrawPrimitiveUP()", result);
return -1;
}
return 0;
}
906
static int
907
D3D_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect * rects,
908
int count)
909
{
910
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
911
DWORD color;
912
913
int i;
float minx, miny, maxx, maxy;
914
Vertex vertices[4];
915
HRESULT result;
916
917
918
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
919
}
920
921
922
D3D_SetBlendMode(data, renderer->blendMode);
923
924
925
result =
IDirect3DDevice9_SetTexture(data->device, 0,
(IDirect3DBaseTexture9 *) 0);
926
927
928
929
if (FAILED(result)) {
D3D_SetError("SetTexture()", result);
return -1;
}
930
931
932
933
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
for (i = 0; i < count; ++i) {
934
const SDL_Rect *rect = &rects[i];
935
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
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;
}
976
}
977
978
979
980
return 0;
}
static int
981
D3D_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
982
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
983
{
984
985
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
D3D_TextureData *texturedata = (D3D_TextureData *) texture->driverdata;
986
LPDIRECT3DPIXELSHADER9 shader = NULL;
987
float minx, miny, maxx, maxy;
988
float minu, maxu, minv, maxv;
989
DWORD color;
990
991
Vertex vertices[4];
HRESULT result;
992
993
994
if (D3D_ActivateRenderer(renderer) < 0) {
return -1;
995
}
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;
maxy = (float) dstrect->y + dstrect->h - 0.5f;