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Route RTT framebuffer binding through renderer GL

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This commit is contained in:
omigamedev
2026-06-03 06:35:47 +02:00
parent 3128a0d309
commit 779d6b0387
6 changed files with 149 additions and 29 deletions
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30
src/renderer_gl/opengl_capabilities.cpp
View File

@@ -684,6 +684,36 @@ pp::foundation::Status readback_opengl_framebuffer(
return pp::foundation::Status::success();
}
pp::foundation::Result<OpenGlFramebufferBindingState> bind_opengl_framebuffer_for_draw_read(
std::uint32_t framebuffer,
OpenGlFramebufferBindDispatch dispatch) noexcept
{
if (dispatch.get_integer == nullptr || dispatch.bind_framebuffer == nullptr) {
return pp::foundation::Result<OpenGlFramebufferBindingState>::failure(
pp::foundation::Status::invalid_argument("OpenGL framebuffer bind dispatch callbacks must not be null"));
}
OpenGlFramebufferBindingState binding {};
dispatch.get_integer(draw_framebuffer_binding_query(), &binding.draw_framebuffer);
dispatch.get_integer(read_framebuffer_binding_query(), &binding.read_framebuffer);
dispatch.bind_framebuffer(draw_framebuffer_target(), framebuffer);
dispatch.bind_framebuffer(read_framebuffer_target(), framebuffer);
return pp::foundation::Result<OpenGlFramebufferBindingState>::success(binding);
}
pp::foundation::Status restore_opengl_framebuffer_binding(
OpenGlFramebufferBindingState binding,
OpenGlFramebufferRestoreDispatch dispatch) noexcept
{
if (dispatch.bind_framebuffer == nullptr) {
return pp::foundation::Status::invalid_argument("OpenGL framebuffer restore dispatch callback must not be null");
}
dispatch.bind_framebuffer(draw_framebuffer_target(), static_cast<std::uint32_t>(binding.draw_framebuffer));
dispatch.bind_framebuffer(read_framebuffer_target(), static_cast<std::uint32_t>(binding.read_framebuffer));
return pp::foundation::Status::success();
}
std::uint32_t extension_count_query() noexcept
{
return gl_num_extensions;

20
src/renderer_gl/opengl_capabilities.h
View File

@@ -167,6 +167,11 @@ struct OpenGlFramebufferReadback {
void* pixels = nullptr;
};
struct OpenGlFramebufferBindingState {
std::int32_t draw_framebuffer = 0;
std::int32_t read_framebuffer = 0;
};
struct OpenGlWindowsWglContextConfig {
std::array<std::int32_t, 9> context_attributes {};
std::array<std::int32_t, 15> pixel_format_attributes {};
@@ -381,6 +386,15 @@ struct OpenGlFramebufferReadbackDispatch {
OpenGlReadPixelsFn read_pixels = nullptr;
};
struct OpenGlFramebufferBindDispatch {
OpenGlGetIntegerFn get_integer = nullptr;
OpenGlBindFramebufferFn bind_framebuffer = nullptr;
};
struct OpenGlFramebufferRestoreDispatch {
OpenGlBindFramebufferFn bind_framebuffer = nullptr;
};
[[nodiscard]] OpenGlCapabilities detect_opengl_capabilities(
std::span<const std::string_view> extensions,
OpenGlRuntime runtime) noexcept;
@@ -437,6 +451,12 @@ struct OpenGlFramebufferReadbackDispatch {
[[nodiscard]] pp::foundation::Status readback_opengl_framebuffer(
OpenGlFramebufferReadback readback,
OpenGlFramebufferReadbackDispatch dispatch) noexcept;
[[nodiscard]] pp::foundation::Result<OpenGlFramebufferBindingState> bind_opengl_framebuffer_for_draw_read(
std::uint32_t framebuffer,
OpenGlFramebufferBindDispatch dispatch) noexcept;
[[nodiscard]] pp::foundation::Status restore_opengl_framebuffer_binding(
OpenGlFramebufferBindingState binding,
OpenGlFramebufferRestoreDispatch dispatch) noexcept;
[[nodiscard]] std::uint32_t extension_count_query() noexcept;
[[nodiscard]] std::uint32_t extension_string_name() noexcept;