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AbstractTexture: Implement Save using new common methods

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This commit is contained in:
Stenzek
2017-10-30 22:00:15 +10:00
parent 56afebeb44
commit c2cc128f1b
3 changed files with 28 additions and 11 deletions
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32
Source/Core/VideoCommon/AbstractTexture.cpp
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@ -6,8 +6,10 @@
#include "Common/Assert.h"
#include "Common/MsgHandler.h"
#include "VideoCommon/AbstractStagingTexture.h"
#include "VideoCommon/AbstractTexture.h"
#include "VideoCommon/ImageWrite.h"
#include "VideoCommon/RenderBase.h"
AbstractTexture::AbstractTexture(const TextureConfig& c) : m_config(c)
{
@ -20,17 +22,33 @@ bool AbstractTexture::Save(const std::string& filename, unsigned int level)
// We can't dump compressed textures currently (it would mean drawing them to a RGBA8
// framebuffer, and saving that). TextureCache does not call Save for custom textures
// anyway, so this is fine for now.
_assert_(m_config.format == AbstractTextureFormat::RGBA8);
_assert_(!IsCompressedFormat(m_config.format));
_assert_(level < m_config.levels);
auto result = level == 0 ? Map() : Map(level);
// Determine dimensions of image we want to save.
u32 level_width = std::max(1u, m_config.width >> level);
u32 level_height = std::max(1u, m_config.height >> level);
if (!result.has_value())
{
// Use a temporary staging texture for the download. Certainly not optimal,
// but this is not a frequently-executed code path..
TextureConfig readback_texture_config(level_width, level_height, 1, 1,
AbstractTextureFormat::RGBA8, false);
auto readback_texture =
g_renderer->CreateStagingTexture(StagingTextureType::Readback, readback_texture_config);
if (!readback_texture)
return false;
}
auto raw_data = result.value();
return TextureToPng(raw_data.data, raw_data.stride, filename, raw_data.width, raw_data.height);
// Copy to the readback texture's buffer.
readback_texture->CopyFromTexture(this, 0, level);
readback_texture->Flush();
// Map it so we can encode it to the file.
if (!readback_texture->Map())
return false;
return TextureToPng(reinterpret_cast<const u8*>(readback_texture->GetMappedPointer()),
static_cast<int>(readback_texture->GetMappedStride()), filename, level_width,
level_height);
}
std::optional<AbstractTexture::RawTextureInfo> AbstractTexture::Map()