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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/canvas/WebGL2ContextState.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/WebGL2ContextState.cpp')
-rw-r--r--dom/canvas/WebGL2ContextState.cpp117
1 files changed, 117 insertions, 0 deletions
diff --git a/dom/canvas/WebGL2ContextState.cpp b/dom/canvas/WebGL2ContextState.cpp
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+++ b/dom/canvas/WebGL2ContextState.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "WebGLBuffer.h"
+#include "WebGLContextUtils.h"
+#include "WebGLFramebuffer.h"
+#include "WebGLSampler.h"
+#include "WebGLTransformFeedback.h"
+#include "WebGLVertexArray.h"
+
+namespace mozilla {
+
+Maybe<double> WebGL2Context::GetParameter(GLenum pname) {
+ const FuncScope funcScope(*this, "getParameter");
+ // The following cases are handled in WebGLContext::GetParameter():
+ // case LOCAL_GL_MAX_COLOR_ATTACHMENTS:
+ // case LOCAL_GL_MAX_DRAW_BUFFERS:
+ // case LOCAL_GL_DRAW_BUFFERi:
+
+ if (IsContextLost()) return Nothing();
+
+ switch (pname) {
+ /* GLboolean */
+ case LOCAL_GL_RASTERIZER_DISCARD:
+ case LOCAL_GL_SAMPLE_ALPHA_TO_COVERAGE:
+ case LOCAL_GL_SAMPLE_COVERAGE: {
+ realGLboolean b = 0;
+ gl->fGetBooleanv(pname, &b);
+ return Some(bool(b));
+ }
+
+ case LOCAL_GL_TRANSFORM_FEEDBACK_ACTIVE:
+ return Some(mBoundTransformFeedback->mIsActive);
+ case LOCAL_GL_TRANSFORM_FEEDBACK_PAUSED:
+ return Some(mBoundTransformFeedback->mIsPaused);
+
+ /* GLenum */
+ case LOCAL_GL_READ_BUFFER: {
+ if (!mBoundReadFramebuffer) return Some(mDefaultFB_ReadBuffer);
+
+ if (!mBoundReadFramebuffer->ColorReadBuffer()) return Some(LOCAL_GL_NONE);
+
+ return Some(mBoundReadFramebuffer->ColorReadBuffer()->mAttachmentPoint);
+ }
+
+ case LOCAL_GL_FRAGMENT_SHADER_DERIVATIVE_HINT:
+ /* fall through */
+
+ /* GLint */
+ case LOCAL_GL_MAX_COMBINED_UNIFORM_BLOCKS:
+ case LOCAL_GL_MAX_ELEMENTS_INDICES:
+ case LOCAL_GL_MAX_ELEMENTS_VERTICES:
+ case LOCAL_GL_MAX_FRAGMENT_INPUT_COMPONENTS:
+ case LOCAL_GL_MAX_FRAGMENT_UNIFORM_BLOCKS:
+ case LOCAL_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS:
+ case LOCAL_GL_MAX_PROGRAM_TEXEL_OFFSET:
+ case LOCAL_GL_MAX_SAMPLES:
+ case LOCAL_GL_MAX_TEXTURE_LOD_BIAS:
+ case LOCAL_GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS:
+ case LOCAL_GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS:
+ case LOCAL_GL_MAX_VERTEX_OUTPUT_COMPONENTS:
+ case LOCAL_GL_MAX_VERTEX_UNIFORM_BLOCKS:
+ case LOCAL_GL_MAX_VERTEX_UNIFORM_COMPONENTS:
+ case LOCAL_GL_MIN_PROGRAM_TEXEL_OFFSET: {
+ GLint val;
+ gl->fGetIntegerv(pname, &val);
+ return Some(val);
+ }
+
+ case LOCAL_GL_MAX_VARYING_COMPONENTS: {
+ // On OS X Core Profile this is buggy. The spec says that the
+ // value is 4 * GL_MAX_VARYING_VECTORS
+ GLint val;
+ gl->fGetIntegerv(LOCAL_GL_MAX_VARYING_VECTORS, &val);
+ return Some(4 * val);
+ }
+
+ /* GLint64 */
+ case LOCAL_GL_MAX_CLIENT_WAIT_TIMEOUT_WEBGL:
+ return Some(kMaxClientWaitSyncTimeoutNS);
+
+ case LOCAL_GL_MAX_ELEMENT_INDEX:
+ // GL_MAX_ELEMENT_INDEX becomes available in GL 4.3 or via ES3
+ // compatibility
+ if (!gl->IsSupported(gl::GLFeature::ES3_compatibility))
+ return Some(UINT32_MAX);
+
+ /*** fall through to fGetInteger64v ***/
+ [[fallthrough]];
+
+ case LOCAL_GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS:
+ case LOCAL_GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS:
+ case LOCAL_GL_MAX_UNIFORM_BLOCK_SIZE: {
+ GLint64 val;
+ gl->fGetInteger64v(pname, &val);
+ return Some(static_cast<double>(val));
+ }
+
+ /* GLuint64 */
+ case LOCAL_GL_MAX_SERVER_WAIT_TIMEOUT: {
+ GLuint64 val;
+ gl->fGetInteger64v(pname, (GLint64*)&val);
+ return Some(static_cast<double>(val));
+ }
+
+ default:
+ return WebGLContext::GetParameter(pname);
+ }
+}
+
+} // namespace mozilla