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Initial support for writing to textures in compute shaders.

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This commit is contained in:
Alex Szpakowski
2021-08-13 14:43:03 -03:00
parent cffd485976
commit a551fcd492
14 changed files with 383 additions and 50 deletions
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src/modules/graphics/opengl/Graphics.cpp
+10 -12
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@@ -501,9 +501,9 @@ static bool computeDispatchBarriers(Shader *shader, GLbitfield &preDispatchBarri
postDispatchBarriers |= GL_PIXEL_BUFFER_BARRIER_BIT;
}
for (auto texture : shader->getActiveWritableTextures())
for (const auto &binding : shader->getStorageTextureBindings())
{
if (texture == nullptr)
if (binding.texture == nullptr)
return false;
preDispatchBarriers |= GL_SHADER_IMAGE_ACCESS_BARRIER_BIT;
@@ -512,7 +512,7 @@ static bool computeDispatchBarriers(Shader *shader, GLbitfield &preDispatchBarri
| GL_TEXTURE_UPDATE_BARRIER_BIT
| GL_TEXTURE_FETCH_BARRIER_BIT;
if (texture->isRenderTarget())
if (binding.texture->isRenderTarget())
postDispatchBarriers |= GL_FRAMEBUFFER_BARRIER_BIT;
}
@@ -1684,7 +1684,7 @@ PixelFormat Graphics::getSizedFormat(PixelFormat format, bool rendertarget, bool
}
}
bool Graphics::isPixelFormatSupported(PixelFormat format, bool rendertarget, bool readable, bool sRGB)
bool Graphics::isPixelFormatSupported(PixelFormat format, PixelFormatUsageFlags usage, bool sRGB)
{
if (sRGB && format == PIXELFORMAT_RGBA8_UNORM)
{
@@ -1692,22 +1692,20 @@ bool Graphics::isPixelFormatSupported(PixelFormat format, bool rendertarget, boo
sRGB = false;
}
uint32 requiredflags = 0;
if (rendertarget)
requiredflags |= PIXELFORMATUSAGEFLAGS_RENDERTARGET;
if (readable)
requiredflags |= PIXELFORMATUSAGEFLAGS_SAMPLE;
bool rendertarget = (usage & PIXELFORMATUSAGEFLAGS_RENDERTARGET) != 0;
bool readable = (usage & PIXELFORMATUSAGEFLAGS_SAMPLE) != 0;
bool computewrite = (usage & PIXELFORMATUSAGEFLAGS_COMPUTEWRITE) != 0;
format = getSizedFormat(format, rendertarget, readable);
OptionalBool &supported = supportedFormats[format][rendertarget ? 1 : 0][readable ? 1 : 0][sRGB ? 1 : 0];
OptionalBool &supported = supportedFormats[format][rendertarget ? 1 : 0][readable ? 1 : 0][computewrite ? 1 : 0][sRGB ? 1 : 0];
if (supported.hasValue)
return supported.value;
auto supportedflags = OpenGL::getPixelFormatUsageFlags(format);
uint32 supportedflags = OpenGL::getPixelFormatUsageFlags(format);
if ((requiredflags & supportedflags) != requiredflags)
if ((usage & supportedflags) != usage)
{
supported.set(false);
return supported.value;