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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

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);
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);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}
@ -305,7 +308,16 @@ void FHardwareTexture::AllocateBuffer(int w, int h, int texelsize)
uint8_t *FHardwareTexture::MapBuffer()
{
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);
auto mat = FMaterial::ValidateTexture(fbtex.get(), false);
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);
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");
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<FSWSceneTexture> FBTexture[2];
TArray<uint32_t> FBBuffer;
int FBTextureIndex = 0;
bool FBIsTruecolor = false;