pandory500/SDL-mirror
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Don't reset the viewport unless you have to.

Browse source
This commit is contained in:
Sam Lantinga 2011-02-15 14:17:42 -08:00
parent 2a4134c20a
commit a6be4e7267
1 changed files with 27 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

46
src/render/direct3d/SDL_render_d3d.c
View file

@ -704,7 +704,6 @@ static int
D3D_RenderClear(SDL_Renderer * renderer)
{
D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
D3DVIEWPORT9 viewport;
DWORD color;
HRESULT result;
@ -712,27 +711,36 @@ D3D_RenderClear(SDL_Renderer * renderer)
return -1;
}
/* 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);
color = D3DCOLOR_ARGB(renderer->a, renderer->r, renderer->g, renderer->b);
result = IDirect3DDevice9_Clear(data->device, 0, NULL, D3DCLEAR_TARGET, color, 0.0f, 0);
/* 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;
/* 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);
/* 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);
}
if (FAILED(result)) {
D3D_SetError("Clear()", result);