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https://github.com/hrydgard/ppsspp.git
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ba15718db3
This works for texture, framebuffer, depth, and stencil. Importantly, allows debugging the actual depth values present.
99 lines
2.4 KiB
C++
99 lines
2.4 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 "GPUDebugInterface.h"
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void GPUDebugBuffer::Allocate(u32 stride, u32 height, GEBufferFormat fmt, bool flipped, bool reversed) {
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GPUDebugBufferFormat actualFmt = GPUDebugBufferFormat(fmt);
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if (reversed && actualFmt < GPU_DBG_FORMAT_8888) {
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actualFmt |= GPU_DBG_FORMAT_REVERSE_FLAG;
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}
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Allocate(stride, height, actualFmt, flipped);
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}
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void GPUDebugBuffer::Allocate(u32 stride, u32 height, GPUDebugBufferFormat fmt, bool flipped) {
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if (alloc_ && stride_ == stride && height_ == height && fmt_ == fmt) {
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// Already allocated the right size.
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flipped_ = flipped;
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return;
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}
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Free();
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alloc_ = true;
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height_ = height;
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stride_ = stride;
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fmt_ = fmt;
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flipped_ = flipped;
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u32 pixelSize = PixelSize(fmt);
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data_ = new u8[pixelSize * stride * height];
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}
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void GPUDebugBuffer::Free() {
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if (alloc_ && data_ != NULL) {
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delete [] data_;
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}
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data_ = NULL;
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}
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u32 GPUDebugBuffer::PixelSize(GPUDebugBufferFormat fmt) const {
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switch (fmt) {
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case GPU_DBG_FORMAT_8888:
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case GPU_DBG_FORMAT_8888_BGRA:
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case GPU_DBG_FORMAT_FLOAT:
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case GPU_DBG_FORMAT_24BIT_8X:
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case GPU_DBG_FORMAT_24X_8BIT:
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return 4;
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case GPU_DBG_FORMAT_888_RGB:
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return 3;
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case GPU_DBG_FORMAT_8BIT:
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return 1;
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default:
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return 2;
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}
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}
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u32 GPUDebugBuffer::GetRawPixel(int x, int y) const {
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if (data_ == nullptr) {
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return 0;
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}
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if (flipped_) {
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y = height_ - y - 1;
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}
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u32 pixelSize = PixelSize(fmt_);
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u32 byteOffset = pixelSize * (stride_ * y + x);
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const u8 *ptr = &data_[byteOffset];
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switch (pixelSize) {
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case 4:
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return *(const u32 *)ptr;
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case 3:
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return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16);
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case 2:
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return *(const u16 *)ptr;
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case 1:
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return *(const u8 *)ptr;
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default:
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return 0;
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}
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}
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