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https://github.com/hrydgard/ppsspp.git
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79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#include <d3d9.h>
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#include "Common/Common.h"
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#include "Common/GPU/thin3d.h"
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#include "GPU/Common/FramebufferManagerCommon.h"
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#include "GPU/Common/GPUStateUtils.h"
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#include "GPU/Common/PresentationCommon.h"
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#include "GPU/Common/TextureDecoder.h"
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#include "GPU/Directx9/FramebufferManagerDX9.h"
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FramebufferManagerDX9::FramebufferManagerDX9(Draw::DrawContext *draw)
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: FramebufferManagerCommon(draw) {
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presentation_->SetLanguage(HLSL_D3D9);
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preferredPixelsFormat_ = Draw::DataFormat::B8G8R8A8_UNORM;
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}
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bool FramebufferManagerDX9::ReadbackDepthbuffer(Draw::Framebuffer *fbo, int x, int y, int w, int h, uint16_t *pixels, int pixelsStride, int destW, int destH, Draw::ReadbackMode mode) {
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// Don't yet support stretched readbacks here.
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if (destW != w || destH != h) {
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return false;
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}
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// We always read the depth buffer in 24_8 format.
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LPDIRECT3DTEXTURE9 tex = (LPDIRECT3DTEXTURE9)draw_->GetFramebufferAPITexture(fbo, Draw::FB_DEPTH_BIT, 0);
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if (!tex)
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return false;
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// This is separate from the thin3d way because it applies DepthScaleFactors.
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D3DSURFACE_DESC desc;
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D3DLOCKED_RECT locked;
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tex->GetLevelDesc(0, &desc);
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RECT rect = {(LONG)x, (LONG)y, (LONG)w, (LONG)h};
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HRESULT hr = tex->LockRect(0, &locked, &rect, D3DLOCK_READONLY);
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if (!SUCCEEDED(hr))
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return false;
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const u32 *packed = (const u32 *)locked.pBits;
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u16 *depth = (u16 *)pixels;
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DepthScaleFactors depthScale = GetDepthScaleFactors(gstate_c.UseFlags());
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// TODO: Optimize.
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for (int yp = 0; yp < h; ++yp) {
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for (int xp = 0; xp < w; ++xp) {
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const int offset = (yp + y) * pixelsStride + x + xp;
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float scaled = depthScale.DecodeToU16((packed[offset] & 0x00FFFFFF) * (1.0f / 16777215.0f));
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if (scaled <= 0.0f) {
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depth[offset] = 0;
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} else if (scaled >= 65535.0f) {
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depth[offset] = 65535;
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} else {
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depth[offset] = (int)scaled;
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}
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}
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}
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tex->UnlockRect(0);
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return true;
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}
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