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OpenGLRenderer: Implement texture blit/copy if glCopyImageSubData is not supported

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This commit is contained in:
Jérôme Leclercq
2021-09-21 17:39:24 +02:00
parent 4933a389a2
commit 7ab4d91900
4 changed files with 124 additions and 26 deletions
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23
include/Nazara/OpenGLRenderer/Wrapper/Context.hpp
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@@ -26,6 +26,8 @@ namespace Nz
namespace Nz::GL
{
class Texture;
enum class BufferTarget
{
Array,
@@ -107,7 +109,9 @@ namespace Nz::GL
friend SymbolLoader;
public:
inline Context(const OpenGLDevice* device);
Context(const OpenGLDevice* device);
Context(const Context&) = delete;
Context(Context&&) = delete;
virtual ~Context();
void BindBuffer(BufferTarget target, GLuint buffer, bool force = false) const;
@@ -120,8 +124,14 @@ namespace Nz::GL
void BindUniformBuffer(UInt32 uboUnit, GLuint buffer, GLintptr offset, GLsizeiptr size) const;
void BindVertexArray(GLuint vertexArray, bool force = false) const;
bool BlitTexture(const Texture& source, const Texture& destination, const Boxui& srcBox, const Vector3ui& dstPos, SamplerFilter filter) const;
bool ClearErrorStack() const;
bool CopyTexture(const Texture& source, const Texture& destination, const Boxui& srcBox, const Vector3ui& dstPos) const;
inline bool DidLastCallSucceed() const;
virtual void EnableVerticalSync(bool enabled) = 0;
inline const OpenGLDevice* GetDevice() const;
@@ -160,6 +170,9 @@ namespace Nz::GL
NAZARA_OPENGLRENDERER_FOREACH_GLES_FUNC(NAZARA_OPENGLRENDERER_FUNC, NAZARA_OPENGLRENDERER_FUNC)
#undef NAZARA_OPENGLRENDERER_FUNC
Context& operator=(const Context&) = delete;
Context& operator=(Context&&) = delete;
static const Context* GetCurrentContext();
static bool SetCurrentContext(const Context* context);
@@ -176,7 +189,8 @@ namespace Nz::GL
ContextParams m_params;
private:
void GL_APIENTRY HandleDebugMessage(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message) const;
void HandleDebugMessage(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message) const;
bool InitializeBlitFramebuffers() const;
enum class FunctionIndex
{
@@ -187,6 +201,8 @@ namespace Nz::GL
Count
};
struct BlitFramebuffers;
struct State
{
struct Box
@@ -223,10 +239,13 @@ namespace Nz::GL
std::array<ExtensionStatus, UnderlyingCast(Extension::Max) + 1> m_extensionStatus;
std::array<GLFunction, UnderlyingCast(FunctionIndex::Count)> m_originalFunctionPointer;
mutable std::unique_ptr<BlitFramebuffers> m_blitFramebuffers;
std::unordered_set<std::string> m_supportedExtensions;
OpenGLVaoCache m_vaoCache;
const OpenGLDevice* m_device;
mutable State m_state;
mutable bool m_didCollectErrors;
mutable bool m_hadAnyError;
};
}

8
include/Nazara/OpenGLRenderer/Wrapper/Context.inl
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@@ -7,10 +7,12 @@
namespace Nz::GL
{
inline Context::Context(const OpenGLDevice* device) :
m_vaoCache(*this),
m_device(device)
inline bool Context::DidLastCallSucceed() const
{
if (!m_didCollectErrors)
ProcessErrorStack();
return !m_hadAnyError;
}
inline const OpenGLDevice* Context::GetDevice() const