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- change software renderer back to writing directly into the pixel buffer object, but change the creation and mapping so that hopefully all vendors put it in system memory

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This commit is contained in:
Magnus Norddahl 2018-07-18 17:47:09 +02:00
parent 23c0f8f6ac
commit a0a7fd53e8
3 changed files with 16 additions and 10 deletions
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14
src/gl/textures/gl_hwtexture.cpp
View file

@ -296,6 +296,9 @@ void FHardwareTexture::AllocateBuffer(int w, int h, int texelsize)
{ {
glGenBuffers(1, &glBufferID); glGenBuffers(1, &glBufferID);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, glBufferID); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, glBufferID);
if (screen->hwcaps & RFL_BUFFER_STORAGE)
glBufferStorage(GL_PIXEL_UNPACK_BUFFER, w*h*texelsize, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_CLIENT_STORAGE_BIT);
else
glBufferData(GL_PIXEL_UNPACK_BUFFER, w*h*texelsize, nullptr, GL_STREAM_DRAW); glBufferData(GL_PIXEL_UNPACK_BUFFER, w*h*texelsize, nullptr, GL_STREAM_DRAW);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
} }
@ -305,7 +308,16 @@ void FHardwareTexture::AllocateBuffer(int w, int h, int texelsize)
uint8_t *FHardwareTexture::MapBuffer() uint8_t *FHardwareTexture::MapBuffer()
{ {
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, glBufferID); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, glBufferID);
return (uint8_t*)glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY); if (screen->hwcaps & RFL_BUFFER_STORAGE)
{
GLint size = -1;
glGetBufferParameteriv(GL_PIXEL_UNPACK_BUFFER, GL_BUFFER_SIZE, &size);
return (uint8_t*)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, size, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT);
}
else
{
return (uint8_t*)glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_READ_WRITE);
}
} }
//=========================================================================== //===========================================================================

9
src/swrenderer/r_swscene.cpp
View file

@ -111,17 +111,12 @@ sector_t *SWSceneDrawer::RenderView(player_t *player)
fbtex->SystemTexture[0]->AllocateBuffer(screen->GetWidth(), screen->GetHeight(), V_IsTrueColor() ? 4 : 1); fbtex->SystemTexture[0]->AllocateBuffer(screen->GetWidth(), screen->GetHeight(), V_IsTrueColor() ? 4 : 1);
auto mat = FMaterial::ValidateTexture(fbtex.get(), false); auto mat = FMaterial::ValidateTexture(fbtex.get(), false);
mat->AddTextureLayer(PaletteTexture.get()); mat->AddTextureLayer(PaletteTexture.get());
FBBuffer.Resize(screen->GetWidth() * screen->GetHeight());
} }
auto buf = (uint8_t*)&FBBuffer[0]; auto buf = fbtex->SystemTexture[0]->MapBuffer();
if (!buf) I_FatalError("Unable to map buffer for software rendering");
buffer.SetBuffer(screen->GetWidth(), screen->GetHeight(), screen->GetWidth(), buf); buffer.SetBuffer(screen->GetWidth(), screen->GetHeight(), screen->GetWidth(), buf);
SWRenderer->RenderView(player, &buffer); SWRenderer->RenderView(player, &buffer);
auto pbobuf = fbtex->SystemTexture[0]->MapBuffer();
if (!pbobuf) I_FatalError("Unable to map buffer for software rendering");
memcpy(pbobuf, buf, FBBuffer.Size() * (V_IsTrueColor() ? 4 : 1));
fbtex->SystemTexture[0]->CreateTexture(nullptr, screen->GetWidth(), screen->GetHeight(), 0, false, 0, "swbuffer"); fbtex->SystemTexture[0]->CreateTexture(nullptr, screen->GetWidth(), screen->GetHeight(), 0, false, 0, "swbuffer");
auto map = swrenderer::CameraLight::Instance()->ShaderColormap(); auto map = swrenderer::CameraLight::Instance()->ShaderColormap();

1
src/swrenderer/r_swscene.h
View file

@ -14,7 +14,6 @@ class SWSceneDrawer
{ {
std::unique_ptr<FTexture> PaletteTexture; std::unique_ptr<FTexture> PaletteTexture;
std::unique_ptr<FSWSceneTexture> FBTexture[2]; std::unique_ptr<FSWSceneTexture> FBTexture[2];
TArray<uint32_t> FBBuffer;
int FBTextureIndex = 0; int FBTextureIndex = 0;
bool FBIsTruecolor = false; bool FBIsTruecolor = false;