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OpenGL: Implement commands buffers

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This commit is contained in:
Lynix
2020-05-11 14:12:13 +02:00
parent fe5b70ae1c
commit 6a23d51147
19 changed files with 621 additions and 162 deletions
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118
src/Nazara/OpenGLRenderer/Wrapper/Context.cpp
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@@ -23,9 +23,9 @@ namespace Nz::GL
m_device->NotifyContextDestruction(*this);
}
void Context::BindBuffer(BufferTarget target, GLuint buffer) const
void Context::BindBuffer(BufferTarget target, GLuint buffer, bool force) const
{
if (m_state.bufferTargets[UnderlyingCast(target)] != buffer)
if (m_state.bufferTargets[UnderlyingCast(target)] != buffer || force)
{
if (!SetCurrentContext(this))
throw std::runtime_error("failed to activate context");
@@ -62,6 +62,18 @@ namespace Nz::GL
}
}
void Context::BindProgram(GLuint program) const
{
if (m_state.boundProgram != program)
{
if (!SetCurrentContext(this))
throw std::runtime_error("failed to activate context");
glUseProgram(program);
m_state.boundProgram = program;
}
}
void Context::BindSampler(UInt32 textureUnit, GLuint sampler) const
{
if (textureUnit >= m_state.textureUnits.size())
@@ -102,6 +114,37 @@ namespace Nz::GL
}
}
void Context::BindUniformBuffer(UInt32 uboUnit, GLuint buffer, GLintptr offset, GLsizeiptr size) const
{
if (uboUnit >= m_state.uboUnits.size())
throw std::runtime_error("unsupported uniform buffer unit #" + std::to_string(uboUnit));
auto& unit = m_state.uboUnits[uboUnit];
if (unit.buffer != buffer || unit.offset != offset || unit.size != size)
{
if (!SetCurrentContext(this))
throw std::runtime_error("failed to activate context");
glBindBufferRange(GL_UNIFORM_BUFFER, uboUnit, buffer, offset, size);
unit.buffer = buffer;
unit.offset = offset;
unit.size = size;
}
}
void Context::BindVertexArray(GLuint vertexArray, bool force) const
{
if (m_state.boundVertexArray != vertexArray || force)
{
if (!SetCurrentContext(this))
throw std::runtime_error("failed to activate context");
glBindVertexArray(vertexArray);
m_state.boundVertexArray = vertexArray;
}
}
bool Context::Initialize(const ContextParams& params)
{
if (!Activate())
@@ -220,9 +263,75 @@ namespace Nz::GL
assert(maxTextureUnits > 0);
m_state.textureUnits.resize(maxTextureUnits);
GLint maxUniformBufferUnits = -1;
glGetIntegerv(GL_MAX_UNIFORM_BUFFER_BINDINGS, &maxUniformBufferUnits);
if (maxUniformBufferUnits < 24) //< OpenGL ES 3.0 requires at least 24 uniform buffers units
NazaraWarning("GL_MAX_UNIFORM_BUFFER_BINDINGS is " + std::to_string(maxUniformBufferUnits) + ", >= 24 expected");
assert(maxUniformBufferUnits > 0);
m_state.uboUnits.resize(maxUniformBufferUnits);
std::array<GLint, 4> res;
glGetIntegerv(GL_SCISSOR_BOX, res.data());
m_state.scissorBox = { res[0], res[1], res[2], res[3] };
glGetIntegerv(GL_VIEWPORT, res.data());
m_state.viewport = { res[0], res[1], res[2], res[3] };
return true;
}
void Context::SetCurrentTextureUnit(UInt32 textureUnit) const
{
if (m_state.currentTextureUnit != textureUnit)
{
if (!SetCurrentContext(this))
throw std::runtime_error("failed to activate context");
glActiveTexture(GL_TEXTURE0 + textureUnit);
m_state.currentTextureUnit = textureUnit;
}
}
void Context::SetScissorBox(GLint x, GLint y, GLsizei width, GLsizei height) const
{
if (m_state.scissorBox.x != x ||
m_state.scissorBox.y != y ||
m_state.scissorBox.width != width ||
m_state.scissorBox.height != height)
{
if (!SetCurrentContext(this))
throw std::runtime_error("failed to activate context");
glScissor(x, y, width, height);
m_state.scissorBox.x = x;
m_state.scissorBox.y = y;
m_state.scissorBox.width = width;
m_state.scissorBox.height = height;
}
}
void Context::SetViewport(GLint x, GLint y, GLsizei width, GLsizei height) const
{
if (m_state.viewport.x != x ||
m_state.viewport.y != y ||
m_state.viewport.width != width ||
m_state.viewport.height != height)
{
if (!SetCurrentContext(this))
throw std::runtime_error("failed to activate context");
glViewport(x, y, width, height);
m_state.viewport.x = x;
m_state.viewport.y = y;
m_state.viewport.width = width;
m_state.viewport.height = height;
}
}
void Context::UpdateStates(const RenderStates& renderStates) const
{
if (!SetCurrentContext(this))
@@ -402,6 +511,11 @@ namespace Nz::GL
return true;
}
void Context::OnContextRelease()
{
m_vaoCache.Clear();
}
bool Context::ImplementFallback(const std::string_view& function)
{
const Loader& loader = GetLoader();