зеркало из https://github.com/mozilla/gecko-dev.git
973 строки
30 KiB
C++
973 строки
30 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "TexUnpackBlob.h"
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#include "GLBlitHelper.h"
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#include "GLContext.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/HTMLCanvasElement.h"
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#include "mozilla/RefPtr.h"
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#include "nsLayoutUtils.h"
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#include "WebGLBuffer.h"
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#include "WebGLContext.h"
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#include "WebGLFormats.h"
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#include "WebGLTexelConversions.h"
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#include "WebGLTexture.h"
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namespace mozilla {
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bool WebGLPixelStore::AssertCurrent(gl::GLContext& gl,
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const bool isWebgl2) const {
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WebGLPixelStore actual;
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gl.GetInt(LOCAL_GL_UNPACK_ALIGNMENT, &actual.mUnpackAlignment);
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if (isWebgl2) {
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gl.GetInt(LOCAL_GL_UNPACK_ROW_LENGTH, &actual.mUnpackRowLength);
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gl.GetInt(LOCAL_GL_UNPACK_IMAGE_HEIGHT, &actual.mUnpackImageHeight);
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gl.GetInt(LOCAL_GL_UNPACK_SKIP_PIXELS, &actual.mUnpackSkipPixels);
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gl.GetInt(LOCAL_GL_UNPACK_SKIP_ROWS, &actual.mUnpackSkipRows);
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gl.GetInt(LOCAL_GL_UNPACK_SKIP_IMAGES, &actual.mUnpackSkipImages);
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}
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bool ok = true;
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ok &= (mUnpackAlignment == actual.mUnpackAlignment);
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ok &= (mUnpackRowLength == actual.mUnpackRowLength);
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ok &= (mUnpackImageHeight == actual.mUnpackImageHeight);
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ok &= (mUnpackSkipPixels == actual.mUnpackSkipPixels);
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ok &= (mUnpackSkipRows == actual.mUnpackSkipRows);
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ok &= (mUnpackSkipImages == actual.mUnpackSkipImages);
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if (ok) return ok;
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const auto fnToStr = [](const WebGLPixelStore& x) {
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const auto text = nsPrintfCString("%u,%u,%u;%u,%u,%u", x.mUnpackAlignment,
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x.mUnpackRowLength, x.mUnpackImageHeight,
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x.mUnpackSkipPixels, x.mUnpackSkipRows,
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x.mUnpackSkipImages);
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return ToString(text);
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};
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const auto was = fnToStr(actual);
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const auto expected = fnToStr(*this);
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gfxCriticalError() << "WebGLPixelStore not current. Was " << was
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<< ". Expected << " << expected << ".";
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return ok;
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}
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void WebGLPixelStore::Apply(gl::GLContext& gl, const bool isWebgl2,
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const uvec3& uploadSize) const {
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gl.fPixelStorei(LOCAL_GL_UNPACK_ALIGNMENT, mUnpackAlignment);
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if (!isWebgl2) return;
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// Re-simplify. (ANGLE seems to have an issue with imageHeight ==
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// uploadSize.y)
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auto rowLength = mUnpackRowLength;
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auto imageHeight = mUnpackImageHeight;
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if (rowLength == uploadSize.x) {
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rowLength = 0;
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}
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if (imageHeight == uploadSize.y) {
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imageHeight = 0;
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}
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gl.fPixelStorei(LOCAL_GL_UNPACK_ROW_LENGTH, rowLength);
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gl.fPixelStorei(LOCAL_GL_UNPACK_IMAGE_HEIGHT, imageHeight);
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gl.fPixelStorei(LOCAL_GL_UNPACK_SKIP_PIXELS, mUnpackSkipPixels);
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gl.fPixelStorei(LOCAL_GL_UNPACK_SKIP_ROWS, mUnpackSkipRows);
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gl.fPixelStorei(LOCAL_GL_UNPACK_SKIP_IMAGES, mUnpackSkipImages);
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}
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namespace webgl {
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static bool IsPIValidForDOM(const webgl::PackingInfo& pi) {
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// https://www.khronos.org/registry/webgl/specs/latest/2.0/#TEXTURE_TYPES_FORMATS_FROM_DOM_ELEMENTS_TABLE
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// Just check for invalid individual formats and types, not combinations.
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switch (pi.format) {
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case LOCAL_GL_RGB:
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case LOCAL_GL_RGBA:
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case LOCAL_GL_LUMINANCE_ALPHA:
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case LOCAL_GL_LUMINANCE:
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case LOCAL_GL_ALPHA:
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case LOCAL_GL_RED:
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case LOCAL_GL_RED_INTEGER:
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case LOCAL_GL_RG:
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case LOCAL_GL_RG_INTEGER:
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case LOCAL_GL_RGB_INTEGER:
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case LOCAL_GL_RGBA_INTEGER:
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break;
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case LOCAL_GL_SRGB:
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case LOCAL_GL_SRGB_ALPHA:
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// Allowed in WebGL1+EXT_srgb
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break;
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default:
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return false;
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}
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switch (pi.type) {
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case LOCAL_GL_UNSIGNED_BYTE:
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case LOCAL_GL_UNSIGNED_SHORT_5_6_5:
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case LOCAL_GL_UNSIGNED_SHORT_4_4_4_4:
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case LOCAL_GL_UNSIGNED_SHORT_5_5_5_1:
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case LOCAL_GL_HALF_FLOAT:
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case LOCAL_GL_HALF_FLOAT_OES:
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case LOCAL_GL_FLOAT:
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case LOCAL_GL_UNSIGNED_INT_10F_11F_11F_REV:
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break;
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default:
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return false;
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}
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return true;
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}
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static bool ValidatePIForDOM(const WebGLContext* const webgl,
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const webgl::PackingInfo& pi) {
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if (!IsPIValidForDOM(pi)) {
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webgl->ErrorInvalidValue("Format or type is invalid for DOM sources.");
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return false;
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}
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return true;
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}
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static WebGLTexelFormat FormatForPackingInfo(const PackingInfo& pi) {
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switch (pi.type) {
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case LOCAL_GL_UNSIGNED_BYTE:
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switch (pi.format) {
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case LOCAL_GL_RED:
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case LOCAL_GL_LUMINANCE:
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case LOCAL_GL_RED_INTEGER:
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return WebGLTexelFormat::R8;
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case LOCAL_GL_ALPHA:
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return WebGLTexelFormat::A8;
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case LOCAL_GL_LUMINANCE_ALPHA:
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return WebGLTexelFormat::RA8;
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case LOCAL_GL_RGB:
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case LOCAL_GL_RGB_INTEGER:
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case LOCAL_GL_SRGB:
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return WebGLTexelFormat::RGB8;
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case LOCAL_GL_RGBA:
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case LOCAL_GL_RGBA_INTEGER:
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case LOCAL_GL_SRGB_ALPHA:
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return WebGLTexelFormat::RGBA8;
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case LOCAL_GL_RG:
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case LOCAL_GL_RG_INTEGER:
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return WebGLTexelFormat::RG8;
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default:
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break;
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}
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break;
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case LOCAL_GL_UNSIGNED_SHORT_5_6_5:
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if (pi.format == LOCAL_GL_RGB) return WebGLTexelFormat::RGB565;
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break;
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case LOCAL_GL_UNSIGNED_SHORT_5_5_5_1:
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if (pi.format == LOCAL_GL_RGBA) return WebGLTexelFormat::RGBA5551;
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break;
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case LOCAL_GL_UNSIGNED_SHORT_4_4_4_4:
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if (pi.format == LOCAL_GL_RGBA) return WebGLTexelFormat::RGBA4444;
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break;
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case LOCAL_GL_HALF_FLOAT:
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case LOCAL_GL_HALF_FLOAT_OES:
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switch (pi.format) {
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case LOCAL_GL_RED:
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case LOCAL_GL_LUMINANCE:
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return WebGLTexelFormat::R16F;
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case LOCAL_GL_ALPHA:
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return WebGLTexelFormat::A16F;
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case LOCAL_GL_LUMINANCE_ALPHA:
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return WebGLTexelFormat::RA16F;
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case LOCAL_GL_RG:
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return WebGLTexelFormat::RG16F;
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case LOCAL_GL_RGB:
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return WebGLTexelFormat::RGB16F;
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case LOCAL_GL_RGBA:
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return WebGLTexelFormat::RGBA16F;
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default:
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break;
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}
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break;
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case LOCAL_GL_FLOAT:
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switch (pi.format) {
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case LOCAL_GL_RED:
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case LOCAL_GL_LUMINANCE:
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return WebGLTexelFormat::R32F;
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case LOCAL_GL_ALPHA:
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return WebGLTexelFormat::A32F;
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case LOCAL_GL_LUMINANCE_ALPHA:
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return WebGLTexelFormat::RA32F;
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case LOCAL_GL_RG:
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return WebGLTexelFormat::RG32F;
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case LOCAL_GL_RGB:
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return WebGLTexelFormat::RGB32F;
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case LOCAL_GL_RGBA:
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return WebGLTexelFormat::RGBA32F;
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default:
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break;
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}
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break;
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case LOCAL_GL_UNSIGNED_INT_10F_11F_11F_REV:
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if (pi.format == LOCAL_GL_RGB) return WebGLTexelFormat::RGB11F11F10F;
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break;
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default:
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break;
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}
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return WebGLTexelFormat::FormatNotSupportingAnyConversion;
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}
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////////////////////
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static uint32_t ZeroOn2D(const GLenum target, const uint32_t val) {
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const bool is2d = !IsTexTarget3D(target);
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if (is2d) return 0;
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return val;
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}
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static bool ValidateUnpackPixels(const WebGLContext* webgl, uint32_t fullRows,
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uint32_t tailPixels,
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webgl::TexUnpackBlob* const blob) {
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const auto& size = blob->mDesc.size;
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if (!size.x || !size.y || !size.z) return true;
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const auto& unpacking = blob->mDesc.unpacking;
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// -
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const auto usedPixelsPerRow =
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CheckedUint32(unpacking.mUnpackSkipPixels) + size.x;
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if (!usedPixelsPerRow.isValid() ||
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usedPixelsPerRow.value() > unpacking.mUnpackRowLength) {
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webgl->ErrorInvalidOperation(
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"UNPACK_SKIP_PIXELS + width >"
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" UNPACK_ROW_LENGTH.");
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return false;
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}
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if (size.y > unpacking.mUnpackImageHeight) {
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webgl->ErrorInvalidOperation("height > UNPACK_IMAGE_HEIGHT.");
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return false;
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}
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//////
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// The spec doesn't bound SKIP_ROWS + height <= IMAGE_HEIGHT, unfortunately.
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auto skipFullRows =
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CheckedUint32(unpacking.mUnpackSkipImages) * unpacking.mUnpackImageHeight;
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skipFullRows += unpacking.mUnpackSkipRows;
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// Full rows in the final image, excluding the tail.
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MOZ_ASSERT(size.y >= 1);
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MOZ_ASSERT(size.z >= 1);
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auto usedFullRows = CheckedUint32(size.z - 1) * unpacking.mUnpackImageHeight;
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usedFullRows += size.y - 1;
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const auto fullRowsNeeded = skipFullRows + usedFullRows;
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if (!fullRowsNeeded.isValid()) {
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webgl->ErrorOutOfMemory("Invalid calculation for required row count.");
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return false;
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}
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if (fullRows > fullRowsNeeded.value()) {
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blob->mNeedsExactUpload = false;
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return true;
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}
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if (fullRows == fullRowsNeeded.value() &&
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tailPixels >= usedPixelsPerRow.value()) {
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MOZ_ASSERT(blob->mNeedsExactUpload);
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return true;
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}
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webgl->ErrorInvalidOperation(
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"Desired upload requires more data than is"
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" available: (%u rows plus %u pixels needed, %u rows"
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" plus %u pixels available)",
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fullRowsNeeded.value(), usedPixelsPerRow.value(), fullRows, tailPixels);
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return false;
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}
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static bool ValidateUnpackBytes(const WebGLContext* const webgl,
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const webgl::PackingInfo& pi,
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size_t availByteCount,
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webgl::TexUnpackBlob* const blob) {
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const auto& size = blob->mDesc.size;
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if (!size.x || !size.y || !size.z) return true;
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const auto& unpacking = blob->mDesc.unpacking;
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const auto bytesPerPixel = webgl::BytesPerPixel(pi);
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const auto bytesPerRow =
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CheckedUint32(unpacking.mUnpackRowLength) * bytesPerPixel;
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const auto rowStride =
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RoundUpToMultipleOf(bytesPerRow, unpacking.mUnpackAlignment);
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const auto fullRows = availByteCount / rowStride;
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if (!fullRows.isValid()) {
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webgl->ErrorOutOfMemory("Unacceptable upload size calculated.");
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return false;
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}
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const auto bodyBytes = fullRows.value() * rowStride.value();
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const auto tailPixels = (availByteCount - bodyBytes) / bytesPerPixel;
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return ValidateUnpackPixels(webgl, fullRows.value(), tailPixels, blob);
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}
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////////////////////
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// static
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std::unique_ptr<TexUnpackBlob> TexUnpackBlob::Create(
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const TexUnpackBlobDesc& desc) {
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return std::unique_ptr<TexUnpackBlob>{[&]() -> TexUnpackBlob* {
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if (!IsTarget3D(desc.imageTarget) && desc.size.z != 1) {
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MOZ_ASSERT(false);
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return nullptr;
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}
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switch (desc.unpacking.mUnpackAlignment) {
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case 1:
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case 2:
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case 4:
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case 8:
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break;
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default:
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MOZ_ASSERT(false);
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return nullptr;
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}
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if (desc.image) {
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return new TexUnpackImage(desc);
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}
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if (desc.surf) {
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return new TexUnpackSurface(desc);
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}
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if (desc.srcAlphaType != gfxAlphaType::NonPremult) {
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MOZ_ASSERT(false);
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return nullptr;
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}
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return new TexUnpackBytes(desc);
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}()};
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}
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static bool HasColorAndAlpha(const WebGLTexelFormat format) {
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switch (format) {
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case WebGLTexelFormat::RA8:
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case WebGLTexelFormat::RA16F:
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case WebGLTexelFormat::RA32F:
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case WebGLTexelFormat::RGBA8:
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case WebGLTexelFormat::RGBA5551:
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case WebGLTexelFormat::RGBA4444:
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case WebGLTexelFormat::RGBA16F:
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case WebGLTexelFormat::RGBA32F:
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case WebGLTexelFormat::BGRA8:
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return true;
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default:
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return false;
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}
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}
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bool TexUnpackBlob::ConvertIfNeeded(
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const WebGLContext* const webgl, const uint32_t rowLength,
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const uint32_t rowCount, WebGLTexelFormat srcFormat,
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const uint8_t* const srcBegin, const ptrdiff_t srcStride,
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WebGLTexelFormat dstFormat, const ptrdiff_t dstStride,
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const uint8_t** const out_begin,
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UniqueBuffer* const out_anchoredBuffer) const {
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MOZ_ASSERT(srcFormat != WebGLTexelFormat::FormatNotSupportingAnyConversion);
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MOZ_ASSERT(dstFormat != WebGLTexelFormat::FormatNotSupportingAnyConversion);
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*out_begin = srcBegin;
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const auto& unpacking = mDesc.unpacking;
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if (!rowLength || !rowCount) return true;
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const auto srcIsPremult = (mDesc.srcAlphaType == gfxAlphaType::Premult);
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const auto& dstIsPremult = unpacking.mPremultiplyAlpha;
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const auto fnHasPremultMismatch = [&]() {
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if (mDesc.srcAlphaType == gfxAlphaType::Opaque) return false;
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if (!HasColorAndAlpha(srcFormat)) return false;
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return srcIsPremult != dstIsPremult;
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};
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const auto srcOrigin =
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(unpacking.mFlipY ? gl::OriginPos::TopLeft : gl::OriginPos::BottomLeft);
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const auto dstOrigin = gl::OriginPos::BottomLeft;
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if (srcFormat != dstFormat) {
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webgl->GeneratePerfWarning(
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"Conversion requires pixel reformatting. (%u->%u)", uint32_t(srcFormat),
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uint32_t(dstFormat));
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} else if (fnHasPremultMismatch()) {
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webgl->GeneratePerfWarning(
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"Conversion requires change in"
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" alpha-premultiplication.");
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} else if (srcOrigin != dstOrigin) {
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webgl->GeneratePerfWarning("Conversion requires y-flip.");
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} else if (srcStride != dstStride) {
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webgl->GeneratePerfWarning("Conversion requires change in stride. (%u->%u)",
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uint32_t(srcStride), uint32_t(dstStride));
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} else {
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return true;
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}
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////
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const auto dstTotalBytes = CheckedUint32(rowCount) * dstStride;
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if (!dstTotalBytes.isValid()) {
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webgl->ErrorOutOfMemory("Calculation failed.");
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return false;
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}
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UniqueBuffer dstBuffer = calloc(1u, (size_t)dstTotalBytes.value());
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if (!dstBuffer.get()) {
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webgl->ErrorOutOfMemory("Failed to allocate dest buffer.");
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return false;
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}
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const auto dstBegin = static_cast<uint8_t*>(dstBuffer.get());
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////
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// And go!:
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bool wasTrivial;
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if (!ConvertImage(rowLength, rowCount, srcBegin, srcStride, srcOrigin,
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srcFormat, srcIsPremult, dstBegin, dstStride, dstOrigin,
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dstFormat, dstIsPremult, &wasTrivial)) {
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webgl->ErrorImplementationBug("ConvertImage failed.");
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return false;
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}
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*out_begin = dstBegin;
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*out_anchoredBuffer = std::move(dstBuffer);
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return true;
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}
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static GLenum DoTexOrSubImage(bool isSubImage, gl::GLContext* gl,
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TexImageTarget target, GLint level,
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const DriverUnpackInfo* dui, GLint xOffset,
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GLint yOffset, GLint zOffset, GLsizei width,
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GLsizei height, GLsizei depth, const void* data) {
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if (isSubImage) {
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return DoTexSubImage(gl, target, level, xOffset, yOffset, zOffset, width,
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height, depth, dui->ToPacking(), data);
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} else {
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return DoTexImage(gl, target, level, dui, width, height, depth, data);
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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// TexUnpackBytes
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bool TexUnpackBytes::Validate(const WebGLContext* const webgl,
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const webgl::PackingInfo& pi) {
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if (!HasData()) return true;
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CheckedInt<size_t> availBytes = 0;
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if (mDesc.cpuData) {
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const auto& range = mDesc.cpuData->Data();
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availBytes = range.length();
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} else if (mDesc.pboOffset) {
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const auto& pboOffset = *mDesc.pboOffset;
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|
|
const auto& pbo =
|
|
webgl->ValidateBufferSelection(LOCAL_GL_PIXEL_UNPACK_BUFFER);
|
|
if (!pbo) return false; // Might be invalid e.g. due to in-use by TF.
|
|
availBytes = pbo->ByteLength();
|
|
availBytes -= pboOffset;
|
|
} else {
|
|
MOZ_ASSERT(false, "Must be one of the above");
|
|
}
|
|
if (!availBytes.isValid()) {
|
|
webgl->ErrorInvalidOperation("Offset is passed end of buffer.");
|
|
return false;
|
|
}
|
|
|
|
return ValidateUnpackBytes(webgl, pi, availBytes.value(), this);
|
|
}
|
|
|
|
bool TexUnpackBytes::TexOrSubImage(bool isSubImage, bool needsRespec,
|
|
WebGLTexture* tex, GLint level,
|
|
const webgl::DriverUnpackInfo* dui,
|
|
GLint xOffset, GLint yOffset, GLint zOffset,
|
|
const webgl::PackingInfo& pi,
|
|
GLenum* const out_error) const {
|
|
const auto& webgl = tex->mContext;
|
|
const auto& target = mDesc.imageTarget;
|
|
const auto& size = mDesc.size;
|
|
const auto& unpacking = mDesc.unpacking;
|
|
|
|
const auto format = FormatForPackingInfo(pi);
|
|
const auto bytesPerPixel = webgl::BytesPerPixel(pi);
|
|
|
|
const uint8_t* uploadPtr = nullptr;
|
|
if (mDesc.cpuData) {
|
|
const auto range = mDesc.cpuData->Data();
|
|
uploadPtr = range.begin().get();
|
|
if (!uploadPtr) {
|
|
MOZ_ASSERT(!range.length());
|
|
}
|
|
}
|
|
|
|
UniqueBuffer tempBuffer;
|
|
|
|
do {
|
|
if (mDesc.pboOffset || !uploadPtr) break;
|
|
|
|
if (!unpacking.mFlipY && !unpacking.mPremultiplyAlpha) {
|
|
break;
|
|
}
|
|
|
|
webgl->GenerateWarning(
|
|
"Alpha-premult and y-flip are deprecated for"
|
|
" non-DOM-Element uploads.");
|
|
|
|
const uint32_t rowLength = size.x;
|
|
const uint32_t rowCount = size.y * size.z;
|
|
const auto stride = RoundUpToMultipleOf(rowLength * bytesPerPixel,
|
|
unpacking.mUnpackAlignment);
|
|
const auto srcPtr = uploadPtr;
|
|
if (!ConvertIfNeeded(webgl, rowLength, rowCount, format, srcPtr, stride,
|
|
format, stride, &uploadPtr, &tempBuffer)) {
|
|
return false;
|
|
}
|
|
} while (false);
|
|
|
|
//////
|
|
|
|
const auto& gl = webgl->gl;
|
|
|
|
bool useParanoidHandling = false;
|
|
if (mNeedsExactUpload && webgl->mBoundPixelUnpackBuffer) {
|
|
webgl->GenerateWarning(
|
|
"Uploads from a buffer with a final row with a byte"
|
|
" count smaller than the row stride can incur extra"
|
|
" overhead.");
|
|
|
|
if (gl->WorkAroundDriverBugs()) {
|
|
useParanoidHandling |= (gl->Vendor() == gl::GLVendor::NVIDIA);
|
|
}
|
|
}
|
|
|
|
if (!useParanoidHandling) {
|
|
if (webgl->mBoundPixelUnpackBuffer) {
|
|
gl->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER,
|
|
webgl->mBoundPixelUnpackBuffer->mGLName);
|
|
}
|
|
|
|
*out_error =
|
|
DoTexOrSubImage(isSubImage, gl, target, level, dui, xOffset, yOffset,
|
|
zOffset, size.x, size.y, size.z, uploadPtr);
|
|
|
|
if (webgl->mBoundPixelUnpackBuffer) {
|
|
gl->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, 0);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
//////
|
|
|
|
MOZ_ASSERT(webgl->mBoundPixelUnpackBuffer);
|
|
|
|
if (!isSubImage) {
|
|
// Alloc first to catch OOMs.
|
|
AssertUintParamCorrect(gl, LOCAL_GL_PIXEL_UNPACK_BUFFER, 0);
|
|
*out_error =
|
|
DoTexOrSubImage(false, gl, target, level, dui, xOffset, yOffset,
|
|
zOffset, size.x, size.y, size.z, nullptr);
|
|
if (*out_error) return true;
|
|
}
|
|
|
|
const ScopedLazyBind bindPBO(gl, LOCAL_GL_PIXEL_UNPACK_BUFFER,
|
|
webgl->mBoundPixelUnpackBuffer);
|
|
|
|
//////
|
|
|
|
// Make our sometimes-implicit values explicit. Also this keeps them constant
|
|
// when we ask for height=mHeight-1 and such.
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_ROW_LENGTH, unpacking.mUnpackRowLength);
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_IMAGE_HEIGHT, unpacking.mUnpackImageHeight);
|
|
|
|
if (size.z > 1) {
|
|
*out_error =
|
|
DoTexOrSubImage(true, gl, target, level, dui, xOffset, yOffset, zOffset,
|
|
size.x, size.y, size.z - 1, uploadPtr);
|
|
}
|
|
|
|
// Skip the images we uploaded.
|
|
const auto skipImages = ZeroOn2D(target, unpacking.mUnpackSkipImages);
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_SKIP_IMAGES, skipImages + size.z - 1);
|
|
|
|
if (size.y > 1) {
|
|
*out_error =
|
|
DoTexOrSubImage(true, gl, target, level, dui, xOffset, yOffset,
|
|
zOffset + size.z - 1, size.x, size.y - 1, 1, uploadPtr);
|
|
}
|
|
|
|
const auto totalSkipRows =
|
|
CheckedUint32(skipImages) * unpacking.mUnpackImageHeight +
|
|
unpacking.mUnpackSkipRows;
|
|
const auto totalFullRows =
|
|
CheckedUint32(size.z - 1) * unpacking.mUnpackImageHeight + size.y - 1;
|
|
const auto tailOffsetRows = totalSkipRows + totalFullRows;
|
|
|
|
const auto bytesPerRow =
|
|
CheckedUint32(unpacking.mUnpackRowLength) * bytesPerPixel;
|
|
const auto rowStride =
|
|
RoundUpToMultipleOf(bytesPerRow, unpacking.mUnpackAlignment);
|
|
if (!rowStride.isValid()) {
|
|
MOZ_CRASH("Should be checked earlier.");
|
|
}
|
|
const auto tailOffsetBytes = tailOffsetRows * rowStride;
|
|
|
|
uploadPtr += tailOffsetBytes.value();
|
|
|
|
//////
|
|
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_ALIGNMENT, 1); // No stride padding.
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_ROW_LENGTH, 0); // No padding in general.
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_SKIP_IMAGES, 0); // Don't skip images,
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_SKIP_ROWS,
|
|
0); // or rows.
|
|
// Keep skipping pixels though!
|
|
|
|
*out_error = DoTexOrSubImage(true, gl, target, level, dui, xOffset,
|
|
yOffset + size.y - 1, zOffset + size.z - 1,
|
|
size.x, 1, 1, uploadPtr);
|
|
|
|
// Caller will reset all our modified PixelStorei state.
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// TexUnpackImage
|
|
|
|
TexUnpackImage::~TexUnpackImage() = default;
|
|
|
|
bool TexUnpackImage::Validate(const WebGLContext* const webgl,
|
|
const webgl::PackingInfo& pi) {
|
|
if (!ValidatePIForDOM(webgl, pi)) return false;
|
|
|
|
const auto fullRows = mDesc.image->GetSize().height;
|
|
return ValidateUnpackPixels(webgl, fullRows, 0, this);
|
|
}
|
|
|
|
bool TexUnpackImage::TexOrSubImage(bool isSubImage, bool needsRespec,
|
|
WebGLTexture* tex, GLint level,
|
|
const webgl::DriverUnpackInfo* dui,
|
|
GLint xOffset, GLint yOffset, GLint zOffset,
|
|
const webgl::PackingInfo& pi,
|
|
GLenum* const out_error) const {
|
|
MOZ_ASSERT_IF(needsRespec, !isSubImage);
|
|
|
|
const auto& webgl = tex->mContext;
|
|
const auto& target = mDesc.imageTarget;
|
|
const auto& size = mDesc.size;
|
|
const auto& image = mDesc.image;
|
|
const auto& unpacking = mDesc.unpacking;
|
|
|
|
const auto& gl = webgl->GL();
|
|
|
|
if (needsRespec) {
|
|
*out_error =
|
|
DoTexOrSubImage(isSubImage, gl, target, level, dui, xOffset, yOffset,
|
|
zOffset, size.x, size.y, size.z, nullptr);
|
|
if (*out_error) return true;
|
|
}
|
|
|
|
const char* fallbackReason;
|
|
do {
|
|
if (size.z != 1) {
|
|
fallbackReason = "depth is not 1";
|
|
break;
|
|
}
|
|
if (xOffset != 0 || yOffset != 0 || zOffset != 0) {
|
|
fallbackReason = "x/y/zOffset is not 0";
|
|
break;
|
|
}
|
|
|
|
if (unpacking.mUnpackSkipPixels || unpacking.mUnpackSkipRows ||
|
|
unpacking.mUnpackSkipImages) {
|
|
fallbackReason = "non-zero UNPACK_SKIP_* not yet supported";
|
|
break;
|
|
}
|
|
|
|
const auto fnHasPremultMismatch = [&]() {
|
|
if (mDesc.srcAlphaType == gfxAlphaType::Opaque) return false;
|
|
|
|
const bool srcIsPremult = (mDesc.srcAlphaType == gfxAlphaType::Premult);
|
|
const auto& dstIsPremult = unpacking.mPremultiplyAlpha;
|
|
if (srcIsPremult == dstIsPremult) return false;
|
|
|
|
if (dstIsPremult) {
|
|
fallbackReason = "UNPACK_PREMULTIPLY_ALPHA_WEBGL is not true";
|
|
} else {
|
|
fallbackReason = "UNPACK_PREMULTIPLY_ALPHA_WEBGL is not false";
|
|
}
|
|
return true;
|
|
};
|
|
if (fnHasPremultMismatch()) break;
|
|
|
|
if (dui->unpackFormat != LOCAL_GL_RGB &&
|
|
dui->unpackFormat != LOCAL_GL_RGBA) {
|
|
fallbackReason = "`format` is not RGB or RGBA";
|
|
break;
|
|
}
|
|
|
|
if (dui->unpackType != LOCAL_GL_UNSIGNED_BYTE) {
|
|
fallbackReason = "`type` is not UNSIGNED_BYTE";
|
|
break;
|
|
}
|
|
|
|
gl::ScopedFramebuffer scopedFB(gl);
|
|
gl::ScopedBindFramebuffer bindFB(gl, scopedFB.FB());
|
|
|
|
{
|
|
gl::GLContext::LocalErrorScope errorScope(*gl);
|
|
|
|
gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER,
|
|
LOCAL_GL_COLOR_ATTACHMENT0, target,
|
|
tex->mGLName, level);
|
|
|
|
if (errorScope.GetError()) {
|
|
fallbackReason = "bug: failed to attach to FB for blit";
|
|
break;
|
|
}
|
|
}
|
|
|
|
const GLenum status = gl->fCheckFramebufferStatus(LOCAL_GL_FRAMEBUFFER);
|
|
if (status != LOCAL_GL_FRAMEBUFFER_COMPLETE) {
|
|
fallbackReason = "bug: failed to confirm FB for blit";
|
|
break;
|
|
}
|
|
|
|
const auto dstOrigin =
|
|
(unpacking.mFlipY ? gl::OriginPos::TopLeft : gl::OriginPos::BottomLeft);
|
|
if (!gl->BlitHelper()->BlitImageToFramebuffer(image, {size.x, size.y},
|
|
dstOrigin)) {
|
|
fallbackReason = "likely bug: failed to blit";
|
|
break;
|
|
}
|
|
|
|
// Blitting was successful, so we're done!
|
|
*out_error = 0;
|
|
return true;
|
|
} while (false);
|
|
|
|
const nsPrintfCString perfMsg(
|
|
"Failed to hit GPU-copy fast-path: %s (src type %u)", fallbackReason,
|
|
uint32_t(image->GetFormat()));
|
|
|
|
if (unpacking.mRequireFastPath) {
|
|
webgl->ErrorInvalidOperation("%s", perfMsg.BeginReading());
|
|
return false;
|
|
}
|
|
|
|
webgl->GeneratePerfWarning("%s Falling back to CPU upload.",
|
|
perfMsg.BeginReading());
|
|
|
|
const RefPtr<gfx::SourceSurface> surf = image->GetAsSourceSurface();
|
|
|
|
RefPtr<gfx::DataSourceSurface> dataSurf;
|
|
if (surf) {
|
|
// WARNING: OSX can lose our MakeCurrent here.
|
|
dataSurf = surf->GetDataSurface();
|
|
}
|
|
if (!dataSurf) {
|
|
webgl->ErrorOutOfMemory(
|
|
"GetAsSourceSurface or GetDataSurface failed after"
|
|
" blit failed for TexUnpackImage.");
|
|
return false;
|
|
}
|
|
|
|
const TexUnpackBlobDesc newDesc = {
|
|
target, size, mDesc.srcAlphaType, {}, {}, {}, dataSurf, unpacking};
|
|
const TexUnpackSurface surfBlob(newDesc);
|
|
return surfBlob.TexOrSubImage(isSubImage, needsRespec, tex, level, dui,
|
|
xOffset, yOffset, zOffset, pi, out_error);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// TexUnpackSurface
|
|
|
|
TexUnpackSurface::~TexUnpackSurface() = default;
|
|
|
|
//////////
|
|
|
|
static bool GetFormatForSurf(const gfx::SourceSurface* surf,
|
|
WebGLTexelFormat* const out_texelFormat,
|
|
uint8_t* const out_bpp) {
|
|
const auto surfFormat = surf->GetFormat();
|
|
switch (surfFormat) {
|
|
case gfx::SurfaceFormat::B8G8R8A8:
|
|
*out_texelFormat = WebGLTexelFormat::BGRA8;
|
|
*out_bpp = 4;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::B8G8R8X8:
|
|
*out_texelFormat = WebGLTexelFormat::BGRX8;
|
|
*out_bpp = 4;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::R8G8B8A8:
|
|
*out_texelFormat = WebGLTexelFormat::RGBA8;
|
|
*out_bpp = 4;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::R8G8B8X8:
|
|
*out_texelFormat = WebGLTexelFormat::RGBX8;
|
|
*out_bpp = 4;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::R5G6B5_UINT16:
|
|
*out_texelFormat = WebGLTexelFormat::RGB565;
|
|
*out_bpp = 2;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::A8:
|
|
*out_texelFormat = WebGLTexelFormat::A8;
|
|
*out_bpp = 1;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::YUV:
|
|
// Ugh...
|
|
NS_ERROR("We don't handle uploads from YUV sources yet.");
|
|
// When we want to, check out gfx/ycbcr/YCbCrUtils.h. (specifically
|
|
// GetYCbCrToRGBDestFormatAndSize and ConvertYCbCrToRGB)
|
|
return false;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//////////
|
|
|
|
bool TexUnpackSurface::Validate(const WebGLContext* const webgl,
|
|
const webgl::PackingInfo& pi) {
|
|
if (!ValidatePIForDOM(webgl, pi)) return false;
|
|
|
|
const auto fullRows = mDesc.surf->GetSize().height;
|
|
return ValidateUnpackPixels(webgl, fullRows, 0, this);
|
|
}
|
|
|
|
bool TexUnpackSurface::TexOrSubImage(bool isSubImage, bool needsRespec,
|
|
WebGLTexture* tex, GLint level,
|
|
const webgl::DriverUnpackInfo* dui,
|
|
GLint xOffset, GLint yOffset,
|
|
GLint zOffset,
|
|
const webgl::PackingInfo& dstPI,
|
|
GLenum* const out_error) const {
|
|
const auto& webgl = tex->mContext;
|
|
const auto& size = mDesc.size;
|
|
auto& surf = *(mDesc.surf);
|
|
|
|
////
|
|
|
|
const auto rowLength = surf.GetSize().width;
|
|
const auto rowCount = surf.GetSize().height;
|
|
|
|
const auto& dstBPP = webgl::BytesPerPixel(dstPI);
|
|
const auto dstFormat = FormatForPackingInfo(dstPI);
|
|
|
|
////
|
|
|
|
WebGLTexelFormat srcFormat;
|
|
uint8_t srcBPP;
|
|
if (!GetFormatForSurf(&surf, &srcFormat, &srcBPP)) {
|
|
webgl->ErrorImplementationBug(
|
|
"GetFormatForSurf failed for"
|
|
" WebGLTexelFormat::%u.",
|
|
uint32_t(surf.GetFormat()));
|
|
return false;
|
|
}
|
|
|
|
gfx::DataSourceSurface::ScopedMap map(&surf,
|
|
gfx::DataSourceSurface::MapType::READ);
|
|
if (!map.IsMapped()) {
|
|
webgl->ErrorOutOfMemory("Failed to map source surface for upload.");
|
|
return false;
|
|
}
|
|
|
|
const auto& srcBegin = map.GetData();
|
|
const auto& srcStride = map.GetStride();
|
|
|
|
////
|
|
|
|
const auto srcRowLengthBytes = rowLength * srcBPP;
|
|
|
|
const uint8_t maxGLAlignment = 8;
|
|
uint8_t srcAlignment = 1;
|
|
for (; srcAlignment <= maxGLAlignment; srcAlignment *= 2) {
|
|
const auto strideGuess =
|
|
RoundUpToMultipleOf(srcRowLengthBytes, srcAlignment);
|
|
if (strideGuess == srcStride) break;
|
|
}
|
|
const uint32_t dstAlignment =
|
|
(srcAlignment > maxGLAlignment) ? 1 : srcAlignment;
|
|
|
|
const auto dstRowLengthBytes = rowLength * dstBPP;
|
|
const auto dstStride = RoundUpToMultipleOf(dstRowLengthBytes, dstAlignment);
|
|
|
|
////
|
|
|
|
const uint8_t* dstBegin = srcBegin;
|
|
UniqueBuffer tempBuffer;
|
|
if (!ConvertIfNeeded(webgl, rowLength, rowCount, srcFormat, srcBegin,
|
|
srcStride, dstFormat, dstStride, &dstBegin,
|
|
&tempBuffer)) {
|
|
return false;
|
|
}
|
|
|
|
////
|
|
|
|
const auto& gl = webgl->gl;
|
|
if (!gl->MakeCurrent()) {
|
|
*out_error = LOCAL_GL_CONTEXT_LOST;
|
|
return true;
|
|
}
|
|
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_ALIGNMENT, dstAlignment);
|
|
if (webgl->IsWebGL2()) {
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_ROW_LENGTH, rowLength);
|
|
}
|
|
|
|
*out_error =
|
|
DoTexOrSubImage(isSubImage, gl, mDesc.imageTarget, level, dui, xOffset,
|
|
yOffset, zOffset, size.x, size.y, size.z, dstBegin);
|
|
|
|
// Caller will reset all our modified PixelStorei state.
|
|
|
|
return true;
|
|
}
|
|
|
|
} // namespace webgl
|
|
} // namespace mozilla
|