libs/render/src/eu/render/uniform_buffer.cc
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "eu/render/uniform_buffer.h" | ||
| 2 | |||
| 3 | #include "eu/render/opengl_labels.h" | ||
| 4 | #include "eu/render/opengl_utils.h" | ||
| 5 | |||
| 6 | namespace eu::render | ||
| 7 | { | ||
| 8 | |||
| 9 | namespace | ||
| 10 | { | ||
| 11 | const UniformBuffer* bound_buffer = nullptr; | ||
| 12 | } // namespace | ||
| 13 | |||
| 14 | ✗ | BoundUniformBuffer::BoundUniformBuffer(UniformBuffer* b) | |
| 15 | ✗ | : buffer(b) | |
| 16 | { | ||
| 17 | ✗ | ASSERT(bound_buffer == nullptr); | |
| 18 | ✗ | bound_buffer = b; | |
| 19 | ✗ | glBindBuffer(GL_UNIFORM_BUFFER, b->id); | |
| 20 | ✗ | } | |
| 21 | |||
| 22 | ✗ | BoundUniformBuffer::~BoundUniformBuffer() | |
| 23 | { | ||
| 24 | ✗ | ASSERT(bound_buffer == buffer); | |
| 25 | ✗ | bound_buffer = nullptr; | |
| 26 | ✗ | glBindBuffer(GL_UNIFORM_BUFFER, 0); | |
| 27 | ✗ | } | |
| 28 | |||
| 29 | ✗ | UniformBuffer::UniformBuffer(DEBUG_LABEL_ARG_MANY const core::UniformBufferSetup& setup) | |
| 30 | ✗ | : id(create_buffer()) | |
| 31 | { | ||
| 32 | ✗ | auto bound = BoundUniformBuffer{this}; | |
| 33 | ✗ | SET_DEBUG_LABEL_NAMED(id, DebugLabelFor::Buffer, fmt::format("UNI B {}", debug_label)); | |
| 34 | |||
| 35 | // Changed to a dynamic draw due to: | ||
| 36 | // Using glBufferSubData(...) to update a GL_STATIC_DRAW buffer | ||
| 37 | // Performance Severity: medium | ||
| 38 | // todo(Gustav): profile? provide a hint in an argument? | ||
| 39 | ✗ | glBufferData(GL_UNIFORM_BUFFER, setup.size, nullptr, GL_DYNAMIC_DRAW); | |
| 40 | ✗ | glBindBufferBase(GL_UNIFORM_BUFFER, gluint_from_int(setup.binding_point), id); | |
| 41 | ✗ | } | |
| 42 | |||
| 43 | ✗ | UniformBuffer::~UniformBuffer() | |
| 44 | { | ||
| 45 | ✗ | unload(); | |
| 46 | ✗ | } | |
| 47 | |||
| 48 | ✗ | UniformBuffer::UniformBuffer(UniformBuffer&& rhs) noexcept | |
| 49 | ✗ | : id(rhs.id) | |
| 50 | { | ||
| 51 | ✗ | rhs.id = 0; | |
| 52 | ✗ | } | |
| 53 | |||
| 54 | ✗ | UniformBuffer& UniformBuffer::operator=(UniformBuffer&& rhs) noexcept | |
| 55 | { | ||
| 56 | ✗ | unload(); | |
| 57 | ✗ | id = rhs.id; | |
| 58 | ✗ | rhs.id = 0; | |
| 59 | ✗ | return *this; | |
| 60 | } | ||
| 61 | |||
| 62 | // clears the loaded buffer to a invalid buffer | ||
| 63 | ✗ | void UniformBuffer::unload() | |
| 64 | { | ||
| 65 | ✗ | if (id == 0) | |
| 66 | { | ||
| 67 | ✗ | return; | |
| 68 | } | ||
| 69 | |||
| 70 | ✗ | destroy_buffer(id); | |
| 71 | ✗ | id = 0; | |
| 72 | } | ||
| 73 | |||
| 74 | ✗ | void UniformBuffer::set_mat4(const core::CompiledUniformProp& prop, const m4& m) // NOLINT(readability-convert-member-functions-to-static) | |
| 75 | { | ||
| 76 | // todo(Gustav): verify that the prop belongs to self | ||
| 77 | ✗ | ASSERT(prop.type == core::UniformType::mat4 && prop.array_count == 1); | |
| 78 | ✗ | glBufferSubData(GL_UNIFORM_BUFFER, prop.offset, 16 * sizeof(float), m.get_column_major_data_ptr()); | |
| 79 | ✗ | } | |
| 80 | |||
| 81 | } // namespace eu::render | ||
| 82 |