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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/WebGL2ContextMRTs.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/WebGL2ContextMRTs.cpp')
-rw-r--r-- | dom/canvas/WebGL2ContextMRTs.cpp | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/dom/canvas/WebGL2ContextMRTs.cpp b/dom/canvas/WebGL2ContextMRTs.cpp new file mode 100644 index 0000000000..544f8e024a --- /dev/null +++ b/dom/canvas/WebGL2ContextMRTs.cpp @@ -0,0 +1,164 @@ +/* -*- 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 "WebGLFramebuffer.h" + +namespace mozilla { + +bool WebGL2Context::ValidateClearBuffer(const GLenum buffer, + const GLint drawBuffer, + const webgl::AttribBaseType funcType) { + GLint maxDrawBuffer; + switch (buffer) { + case LOCAL_GL_COLOR: + maxDrawBuffer = Limits().maxColorDrawBuffers - 1; + break; + + case LOCAL_GL_DEPTH: + case LOCAL_GL_STENCIL: + maxDrawBuffer = 0; + break; + + case LOCAL_GL_DEPTH_STENCIL: + maxDrawBuffer = 0; + break; + + default: + ErrorInvalidEnumInfo("buffer", buffer); + return false; + } + + if (drawBuffer < 0 || drawBuffer > maxDrawBuffer) { + ErrorInvalidValue( + "Invalid drawbuffer %d. This buffer only supports" + " `drawbuffer` values between 0 and %u.", + drawBuffer, maxDrawBuffer); + return false; + } + + //// + + if (!BindCurFBForDraw()) return false; + + const auto& fb = mBoundDrawFramebuffer; + if (fb) { + if (!fb->ValidateClearBufferType(buffer, drawBuffer, funcType)) + return false; + } else if (buffer == LOCAL_GL_COLOR) { + if (drawBuffer != 0) return true; + + if (mDefaultFB_DrawBuffer0 == LOCAL_GL_NONE) return true; + + if (funcType != webgl::AttribBaseType::Float) { + ErrorInvalidOperation( + "For default framebuffer, COLOR is always of type" + " FLOAT."); + return false; + } + } + + return true; +} + +//// + +void WebGL2Context::ClearBufferTv(GLenum buffer, GLint drawBuffer, + const webgl::TypedQuad& data) { + const FuncScope funcScope(*this, "clearBufferu?[fi]v"); + if (IsContextLost()) return; + + switch (data.type) { + case webgl::AttribBaseType::Boolean: + MOZ_ASSERT(false); + return; + + case webgl::AttribBaseType::Float: + if (buffer != LOCAL_GL_COLOR && buffer != LOCAL_GL_DEPTH) { + ErrorInvalidEnum("`buffer` must be COLOR or DEPTH."); + return; + } + break; + + case webgl::AttribBaseType::Int: + if (buffer != LOCAL_GL_COLOR && buffer != LOCAL_GL_STENCIL) { + ErrorInvalidEnum("`buffer` must be COLOR or STENCIL."); + return; + } + break; + + case webgl::AttribBaseType::Uint: + if (buffer != LOCAL_GL_COLOR) { + ErrorInvalidEnum("`buffer` must be COLOR."); + return; + } + break; + } + + if (!ValidateClearBuffer(buffer, drawBuffer, data.type)) { + return; + } + + if (!mBoundDrawFramebuffer && buffer == LOCAL_GL_DEPTH && mNeedsFakeNoDepth) { + return; + } + if (!mBoundDrawFramebuffer && buffer == LOCAL_GL_STENCIL && + mNeedsFakeNoStencil) { + return; + } + + ScopedDrawCallWrapper wrapper(*this); + switch (data.type) { + case webgl::AttribBaseType::Boolean: + MOZ_ASSERT(false); + return; + + case webgl::AttribBaseType::Float: + gl->fClearBufferfv(buffer, drawBuffer, + reinterpret_cast<const float*>(data.data.data())); + break; + + case webgl::AttribBaseType::Int: + gl->fClearBufferiv(buffer, drawBuffer, + reinterpret_cast<const int32_t*>(data.data.data())); + break; + + case webgl::AttribBaseType::Uint: + gl->fClearBufferuiv(buffer, drawBuffer, + reinterpret_cast<const uint32_t*>(data.data.data())); + break; + } +} + +//// + +void WebGL2Context::ClearBufferfi(GLenum buffer, GLint drawBuffer, + GLfloat depth, GLint stencil) { + const FuncScope funcScope(*this, "clearBufferfi"); + if (IsContextLost()) return; + + if (buffer != LOCAL_GL_DEPTH_STENCIL) + return ErrorInvalidEnum("`buffer` must be DEPTH_STENCIL."); + + const auto ignored = webgl::AttribBaseType::Float; + if (!ValidateClearBuffer(buffer, drawBuffer, ignored)) return; + + auto driverDepth = depth; + auto driverStencil = stencil; + if (!mBoundDrawFramebuffer) { + if (mNeedsFakeNoDepth) { + driverDepth = 1.0f; + } else if (mNeedsFakeNoStencil) { + driverStencil = 0; + } + } + + ScopedDrawCallWrapper wrapper(*this); + gl->fClearBufferfi(buffer, drawBuffer, driverDepth, driverStencil); +} + +} // namespace mozilla |