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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/canvas/WebGL2ContextUniforms.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/WebGL2ContextUniforms.cpp')
-rw-r--r-- | dom/canvas/WebGL2ContextUniforms.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/dom/canvas/WebGL2ContextUniforms.cpp b/dom/canvas/WebGL2ContextUniforms.cpp new file mode 100644 index 0000000000..5f647a20b8 --- /dev/null +++ b/dom/canvas/WebGL2ContextUniforms.cpp @@ -0,0 +1,106 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "WebGL2Context.h" + +#include "GLContext.h" +#include "js/Array.h" // JS::NewArrayObject +#include "mozilla/dom/WebGL2RenderingContextBinding.h" +#include "mozilla/RefPtr.h" +#include "WebGLBuffer.h" +#include "WebGLContext.h" +#include "WebGLProgram.h" +#include "WebGLTransformFeedback.h" +#include "WebGLVertexArray.h" + +namespace mozilla { + +// ------------------------------------------------------------------------- +// Uniform Buffer Objects and Transform Feedback Buffers + +Maybe<double> WebGL2Context::GetIndexedParameter(const GLenum pname, + const uint32_t index) const { + const FuncScope funcScope(*this, "getIndexedParameter"); + if (IsContextLost()) return {}; + + if (IsExtensionEnabled(WebGLExtensionID::OES_draw_buffers_indexed)) { + switch (pname) { + case LOCAL_GL_BLEND_EQUATION_RGB: + case LOCAL_GL_BLEND_EQUATION_ALPHA: + case LOCAL_GL_BLEND_SRC_RGB: + case LOCAL_GL_BLEND_SRC_ALPHA: + case LOCAL_GL_BLEND_DST_RGB: + case LOCAL_GL_BLEND_DST_ALPHA: + case LOCAL_GL_COLOR_WRITEMASK: { + const auto limit = MaxValidDrawBuffers(); + if (index >= limit) { + ErrorInvalidValue("`index` (%u) must be < %s (%u)", index, + "MAX_DRAW_BUFFERS", limit); + return {}; + } + + std::array<GLint, 4> data = {}; + gl->fGetIntegeri_v(pname, index, data.data()); + auto val = data[0]; + if (pname == LOCAL_GL_COLOR_WRITEMASK) { + val = (bool(data[0]) << 0 | bool(data[1]) << 1 | bool(data[2]) << 2 | + bool(data[3]) << 3); + } + return Some(val); + } + } + } + + const auto* bindings = &mIndexedUniformBufferBindings; + const char* limitStr = "MAX_UNIFORM_BUFFER_BINDINGS"; + switch (pname) { + case LOCAL_GL_UNIFORM_BUFFER_START: + case LOCAL_GL_UNIFORM_BUFFER_SIZE: + break; + + case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER_START: + case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER_SIZE: + bindings = &(mBoundTransformFeedback->mIndexedBindings); + limitStr = "MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS"; + break; + + default: + ErrorInvalidEnumArg("pname", pname); + return {}; + } + + if (index >= bindings->size()) { + ErrorInvalidValue("`index` must be < %s.", limitStr); + return {}; + } + const auto& binding = (*bindings)[index]; + + switch (pname) { + case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER_START: + case LOCAL_GL_UNIFORM_BUFFER_START: + return Some(binding.mRangeStart); + break; + + case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER_SIZE: + case LOCAL_GL_UNIFORM_BUFFER_SIZE: + return Some(binding.mRangeSize); + + default: + MOZ_CRASH("impossible"); + } +} + +void WebGL2Context::UniformBlockBinding(WebGLProgram& program, + GLuint uniformBlockIndex, + GLuint uniformBlockBinding) { + const FuncScope funcScope(*this, "uniformBlockBinding"); + if (IsContextLost()) return; + + if (!ValidateObject("program", program)) return; + + program.UniformBlockBinding(uniformBlockIndex, uniformBlockBinding); +} + +} // namespace mozilla |