mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-11 02:56:06 +00:00
780 lines
24 KiB
C++
780 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* 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 "TexUnpackBlob.h"
|
|
|
|
#include "GLBlitHelper.h"
|
|
#include "GLContext.h"
|
|
#include "GLDefs.h"
|
|
#include "mozilla/dom/Element.h"
|
|
#include "mozilla/dom/HTMLCanvasElement.h"
|
|
#include "mozilla/RefPtr.h"
|
|
#include "nsLayoutUtils.h"
|
|
#include "WebGLContext.h"
|
|
#include "WebGLTexelConversions.h"
|
|
#include "WebGLTexture.h"
|
|
|
|
namespace mozilla {
|
|
namespace webgl {
|
|
|
|
static GLenum
|
|
DoTexOrSubImage(bool isSubImage, gl::GLContext* gl, TexImageTarget target, GLint level,
|
|
const DriverUnpackInfo* dui, GLint xOffset, GLint yOffset, GLint zOffset,
|
|
GLsizei width, GLsizei height, GLsizei depth, const void* data)
|
|
{
|
|
if (isSubImage) {
|
|
return DoTexSubImage(gl, target, level, xOffset, yOffset, zOffset, width, height,
|
|
depth, dui->ToPacking(), data);
|
|
} else {
|
|
return DoTexImage(gl, target, level, dui, width, height, depth, data);
|
|
}
|
|
}
|
|
|
|
/*static*/ void
|
|
TexUnpackBlob::OriginsForDOM(WebGLContext* webgl, gl::OriginPos* const out_src,
|
|
gl::OriginPos* const out_dst)
|
|
{
|
|
// Our surfaces are TopLeft.
|
|
*out_src = gl::OriginPos::TopLeft;
|
|
|
|
// WebGL specs the default as passing DOM elements top-left first.
|
|
// Thus y-flip would give us bottom-left.
|
|
*out_dst = webgl->mPixelStore_FlipY ? gl::OriginPos::BottomLeft
|
|
: gl::OriginPos::TopLeft;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// TexUnpackBytes
|
|
|
|
bool
|
|
TexUnpackBytes::ValidateUnpack(WebGLContext* webgl, const char* funcName, bool isFunc3D,
|
|
const webgl::PackingInfo& pi)
|
|
{
|
|
if (!mBytes)
|
|
return true;
|
|
|
|
const auto bytesPerPixel = webgl::BytesPerPixel(pi);
|
|
const auto bytesNeeded = webgl->GetUnpackSize(isFunc3D, mWidth, mHeight, mDepth,
|
|
bytesPerPixel);
|
|
if (!bytesNeeded.isValid()) {
|
|
webgl->ErrorInvalidOperation("%s: Overflow while computing the needed buffer"
|
|
" size.",
|
|
funcName);
|
|
return false;
|
|
}
|
|
|
|
if (mByteCount < bytesNeeded.value()) {
|
|
webgl->ErrorInvalidOperation("%s: Provided buffer is too small. (needs %u, has"
|
|
" %u)",
|
|
funcName, bytesNeeded.value(), mByteCount);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
UnpackFormatHasAlpha(GLenum unpackFormat)
|
|
{
|
|
switch (unpackFormat) {
|
|
case LOCAL_GL_ALPHA:
|
|
case LOCAL_GL_LUMINANCE_ALPHA:
|
|
case LOCAL_GL_RGBA:
|
|
return true;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static WebGLTexelFormat
|
|
FormatFromPacking(const webgl::PackingInfo& pi)
|
|
{
|
|
switch (pi.type) {
|
|
case LOCAL_GL_UNSIGNED_SHORT_5_6_5:
|
|
return WebGLTexelFormat::RGB565;
|
|
|
|
case LOCAL_GL_UNSIGNED_SHORT_5_5_5_1:
|
|
return WebGLTexelFormat::RGBA5551;
|
|
|
|
case LOCAL_GL_UNSIGNED_SHORT_4_4_4_4:
|
|
return WebGLTexelFormat::RGBA4444;
|
|
|
|
case LOCAL_GL_UNSIGNED_BYTE:
|
|
switch (pi.format) {
|
|
case LOCAL_GL_LUMINANCE: return WebGLTexelFormat::R8;
|
|
case LOCAL_GL_ALPHA: return WebGLTexelFormat::A8;
|
|
case LOCAL_GL_LUMINANCE_ALPHA: return WebGLTexelFormat::RA8;
|
|
case LOCAL_GL_RGB: return WebGLTexelFormat::RGB8;
|
|
case LOCAL_GL_SRGB: return WebGLTexelFormat::RGB8;
|
|
case LOCAL_GL_RGBA: return WebGLTexelFormat::RGBA8;
|
|
case LOCAL_GL_SRGB_ALPHA: return WebGLTexelFormat::RGBA8;
|
|
}
|
|
|
|
case LOCAL_GL_HALF_FLOAT:
|
|
case LOCAL_GL_HALF_FLOAT_OES:
|
|
switch (pi.format) {
|
|
case LOCAL_GL_LUMINANCE: return WebGLTexelFormat::R16F;
|
|
case LOCAL_GL_ALPHA: return WebGLTexelFormat::A16F;
|
|
case LOCAL_GL_LUMINANCE_ALPHA: return WebGLTexelFormat::RA16F;
|
|
case LOCAL_GL_RGB: return WebGLTexelFormat::RGB16F;
|
|
case LOCAL_GL_RGBA: return WebGLTexelFormat::RGBA16F;
|
|
}
|
|
|
|
case LOCAL_GL_FLOAT:
|
|
switch (pi.format) {
|
|
case LOCAL_GL_LUMINANCE: return WebGLTexelFormat::R32F;
|
|
case LOCAL_GL_ALPHA: return WebGLTexelFormat::A32F;
|
|
case LOCAL_GL_LUMINANCE_ALPHA: return WebGLTexelFormat::RA32F;
|
|
case LOCAL_GL_RGB: return WebGLTexelFormat::RGB32F;
|
|
case LOCAL_GL_RGBA: return WebGLTexelFormat::RGBA32F;
|
|
}
|
|
}
|
|
|
|
return WebGLTexelFormat::FormatNotSupportingAnyConversion;
|
|
}
|
|
|
|
void
|
|
TexUnpackBytes::TexOrSubImage(bool isSubImage, bool needsRespec, const char* funcName,
|
|
WebGLTexture* tex, TexImageTarget target, GLint level,
|
|
const webgl::DriverUnpackInfo* dui, GLint xOffset,
|
|
GLint yOffset, GLint zOffset, GLenum* const out_glError)
|
|
{
|
|
WebGLContext* webgl = tex->mContext;
|
|
gl::GLContext* gl = webgl->gl;
|
|
|
|
const void* uploadBytes = mBytes;
|
|
UniqueBuffer tempBuffer;
|
|
|
|
do {
|
|
if (!webgl->mPixelStore_FlipY && !webgl->mPixelStore_PremultiplyAlpha)
|
|
break;
|
|
|
|
if (!mBytes || !mWidth || !mHeight || !mDepth)
|
|
break;
|
|
|
|
if (webgl->IsWebGL2())
|
|
break;
|
|
MOZ_ASSERT(mDepth == 1);
|
|
|
|
// This is literally the worst.
|
|
webgl->GenerateWarning("%s: Uploading ArrayBuffers with FLIP_Y or"
|
|
" PREMULTIPLY_ALPHA is slow.",
|
|
funcName);
|
|
|
|
tempBuffer = malloc(mByteCount);
|
|
if (!tempBuffer) {
|
|
*out_glError = LOCAL_GL_OUT_OF_MEMORY;
|
|
return;
|
|
}
|
|
|
|
const webgl::PackingInfo pi = { dui->unpackFormat, dui->unpackType };
|
|
|
|
const auto bytesPerPixel = webgl::BytesPerPixel(pi);
|
|
const auto rowByteAlignment = webgl->mPixelStore_UnpackAlignment;
|
|
|
|
const size_t bytesPerRow = bytesPerPixel * mWidth;
|
|
const size_t rowStride = RoundUpToMultipleOf(bytesPerRow, rowByteAlignment);
|
|
|
|
const bool needsYFlip = webgl->mPixelStore_FlipY;
|
|
|
|
bool needsAlphaPremult = webgl->mPixelStore_PremultiplyAlpha;
|
|
if (!UnpackFormatHasAlpha(pi.format))
|
|
needsAlphaPremult = false;
|
|
|
|
if (!needsAlphaPremult) {
|
|
if (!webgl->mPixelStore_FlipY)
|
|
break;
|
|
|
|
const uint8_t* src = (const uint8_t*)mBytes;
|
|
const uint8_t* const srcEnd = src + rowStride * mHeight;
|
|
|
|
uint8_t* dst = (uint8_t*)tempBuffer.get() + rowStride * (mHeight - 1);
|
|
|
|
while (src != srcEnd) {
|
|
memcpy(dst, src, bytesPerRow);
|
|
src += rowStride;
|
|
dst -= rowStride;
|
|
}
|
|
|
|
uploadBytes = tempBuffer.get();
|
|
break;
|
|
}
|
|
|
|
const auto texelFormat = FormatFromPacking(pi);
|
|
if (texelFormat == WebGLTexelFormat::FormatNotSupportingAnyConversion) {
|
|
MOZ_ASSERT(false, "Bad texelFormat from pi.");
|
|
*out_glError = LOCAL_GL_OUT_OF_MEMORY;
|
|
return;
|
|
}
|
|
|
|
const auto srcOrigin = gl::OriginPos::BottomLeft;
|
|
const auto dstOrigin = (needsYFlip ? gl::OriginPos::TopLeft
|
|
: gl::OriginPos::BottomLeft);
|
|
|
|
const bool srcPremultiplied = false;
|
|
const bool dstPremultiplied = needsAlphaPremult; // Always true here.
|
|
// And go!:
|
|
if (!ConvertImage(mWidth, mHeight,
|
|
mBytes, rowStride, srcOrigin, texelFormat, srcPremultiplied,
|
|
tempBuffer.get(), rowStride, dstOrigin, texelFormat,
|
|
dstPremultiplied))
|
|
{
|
|
MOZ_ASSERT(false, "ConvertImage failed unexpectedly.");
|
|
*out_glError = LOCAL_GL_OUT_OF_MEMORY;
|
|
return;
|
|
}
|
|
|
|
uploadBytes = tempBuffer.get();
|
|
} while (false);
|
|
|
|
GLenum error = DoTexOrSubImage(isSubImage, gl, target, level, dui, xOffset, yOffset,
|
|
zOffset, mWidth, mHeight, mDepth, uploadBytes);
|
|
*out_glError = error;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// TexUnpackImage
|
|
|
|
TexUnpackImage::TexUnpackImage(const RefPtr<layers::Image>& image, bool isAlphaPremult)
|
|
: TexUnpackBlob(image->GetSize().width, image->GetSize().height, 1, true)
|
|
, mImage(image)
|
|
, mIsAlphaPremult(isAlphaPremult)
|
|
{ }
|
|
|
|
TexUnpackImage::~TexUnpackImage()
|
|
{ }
|
|
|
|
void
|
|
TexUnpackImage::TexOrSubImage(bool isSubImage, bool needsRespec, const char* funcName,
|
|
WebGLTexture* tex, TexImageTarget target, GLint level,
|
|
const webgl::DriverUnpackInfo* dui, GLint xOffset,
|
|
GLint yOffset, GLint zOffset, GLenum* const out_glError)
|
|
{
|
|
MOZ_ASSERT_IF(needsRespec, !isSubImage);
|
|
*out_glError = 0;
|
|
|
|
WebGLContext* webgl = tex->mContext;
|
|
|
|
gl::GLContext* gl = webgl->GL();
|
|
gl->MakeCurrent();
|
|
|
|
if (needsRespec) {
|
|
GLenum error = DoTexOrSubImage(isSubImage, gl, target.get(), level, dui, xOffset,
|
|
yOffset, zOffset, mWidth, mHeight, mDepth,
|
|
nullptr);
|
|
if (error) {
|
|
MOZ_ASSERT(!error);
|
|
*out_glError = LOCAL_GL_OUT_OF_MEMORY;
|
|
return;
|
|
}
|
|
}
|
|
|
|
do {
|
|
if (dui->unpackFormat != LOCAL_GL_RGB && dui->unpackFormat != LOCAL_GL_RGBA)
|
|
break;
|
|
|
|
if (dui->unpackType != LOCAL_GL_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.get(), tex->mGLName, level);
|
|
|
|
if (errorScope.GetError())
|
|
break;
|
|
}
|
|
|
|
const GLenum status = gl->fCheckFramebufferStatus(LOCAL_GL_FRAMEBUFFER);
|
|
if (status != LOCAL_GL_FRAMEBUFFER_COMPLETE)
|
|
break;
|
|
|
|
gl::OriginPos srcOrigin, dstOrigin;
|
|
OriginsForDOM(webgl, &srcOrigin, &dstOrigin);
|
|
|
|
const gfx::IntSize destSize(mWidth, mHeight);
|
|
if (!gl->BlitHelper()->BlitImageToFramebuffer(mImage, destSize, scopedFB.FB(),
|
|
dstOrigin))
|
|
{
|
|
break;
|
|
}
|
|
|
|
return; // Blitting was successful, so we're done!
|
|
} while (false);
|
|
|
|
TexUnpackSurface surfBlob(mImage->GetAsSourceSurface(), mIsAlphaPremult);
|
|
|
|
surfBlob.TexOrSubImage(isSubImage, needsRespec, funcName, tex, target, level, dui,
|
|
xOffset, yOffset, zOffset, out_glError);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// TexUnpackSurface
|
|
|
|
static bool
|
|
GuessAlignment(const void* data, size_t bytesPerRow, size_t stride, size_t maxAlignment,
|
|
size_t* const out_alignment)
|
|
{
|
|
size_t alignmentGuess = maxAlignment;
|
|
while (alignmentGuess) {
|
|
size_t guessStride = RoundUpToMultipleOf(bytesPerRow, alignmentGuess);
|
|
if (guessStride == stride &&
|
|
uintptr_t(data) % alignmentGuess == 0)
|
|
{
|
|
*out_alignment = alignmentGuess;
|
|
return true;
|
|
}
|
|
alignmentGuess /= 2;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
SupportsBGRA(gl::GLContext* gl)
|
|
{
|
|
if (gl->IsANGLE())
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/*static*/ bool
|
|
TexUnpackSurface::UploadDataSurface(bool isSubImage, WebGLContext* webgl,
|
|
TexImageTarget target, GLint level,
|
|
const webgl::DriverUnpackInfo* dui, GLint xOffset,
|
|
GLint yOffset, GLint zOffset, GLsizei width,
|
|
GLsizei height, gfx::DataSourceSurface* surf,
|
|
bool isSurfAlphaPremult, GLenum* const out_glError)
|
|
{
|
|
gl::GLContext* gl = webgl->GL();
|
|
MOZ_ASSERT(gl->IsCurrent());
|
|
*out_glError = 0;
|
|
|
|
if (isSurfAlphaPremult != webgl->mPixelStore_PremultiplyAlpha)
|
|
return false;
|
|
|
|
gl::OriginPos srcOrigin, dstOrigin;
|
|
OriginsForDOM(webgl, &srcOrigin, &dstOrigin);
|
|
if (srcOrigin != dstOrigin)
|
|
return false;
|
|
|
|
// This differs from the raw-data upload in that we choose how we do the unpack.
|
|
// (alignment, etc.)
|
|
|
|
// Uploading RGBX as RGBA and blitting to RGB is faster than repacking RGBX into
|
|
// RGB on the CPU. However, this is optimization is out-of-scope for now.
|
|
|
|
static const webgl::DriverUnpackInfo kInfoBGRA = {
|
|
LOCAL_GL_BGRA,
|
|
LOCAL_GL_BGRA,
|
|
LOCAL_GL_UNSIGNED_BYTE,
|
|
};
|
|
|
|
const webgl::DriverUnpackInfo* chosenDUI = nullptr;
|
|
|
|
switch (surf->GetFormat()) {
|
|
case gfx::SurfaceFormat::B8G8R8A8:
|
|
if (SupportsBGRA(gl) &&
|
|
dui->internalFormat == LOCAL_GL_RGBA &&
|
|
dui->unpackFormat == LOCAL_GL_RGBA &&
|
|
dui->unpackType == LOCAL_GL_UNSIGNED_BYTE)
|
|
{
|
|
chosenDUI = &kInfoBGRA;
|
|
}
|
|
break;
|
|
|
|
case gfx::SurfaceFormat::R8G8B8A8:
|
|
if (dui->unpackFormat == LOCAL_GL_RGBA &&
|
|
dui->unpackType == LOCAL_GL_UNSIGNED_BYTE)
|
|
{
|
|
chosenDUI = dui;
|
|
}
|
|
break;
|
|
|
|
case gfx::SurfaceFormat::R5G6B5_UINT16:
|
|
if (dui->unpackFormat == LOCAL_GL_RGB &&
|
|
dui->unpackType == LOCAL_GL_UNSIGNED_SHORT_5_6_5)
|
|
{
|
|
chosenDUI = dui;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!chosenDUI)
|
|
return false;
|
|
|
|
gfx::DataSourceSurface::ScopedMap map(surf, gfx::DataSourceSurface::MapType::READ);
|
|
if (!map.IsMapped())
|
|
return false;
|
|
|
|
const webgl::PackingInfo pi = {chosenDUI->unpackFormat, chosenDUI->unpackType};
|
|
const auto bytesPerPixel = webgl::BytesPerPixel(pi);
|
|
const size_t bytesPerRow = width * bytesPerPixel;
|
|
|
|
const GLint kMaxUnpackAlignment = 8;
|
|
size_t unpackAlignment;
|
|
if (!GuessAlignment(map.GetData(), bytesPerRow, map.GetStride(), kMaxUnpackAlignment,
|
|
&unpackAlignment))
|
|
{
|
|
return false;
|
|
// TODO: Consider using UNPACK_ settings to set the stride based on the too-large
|
|
// alignment used for some SourceSurfaces. (D2D allegedy likes alignment=16)
|
|
}
|
|
|
|
MOZ_ALWAYS_TRUE( webgl->gl->MakeCurrent() );
|
|
ScopedUnpackReset scopedReset(webgl);
|
|
gl->fPixelStorei(LOCAL_GL_UNPACK_ALIGNMENT, unpackAlignment);
|
|
|
|
const GLsizei depth = 1;
|
|
GLenum error = DoTexOrSubImage(isSubImage, gl, target.get(), level, chosenDUI,
|
|
xOffset, yOffset, zOffset, width, height, depth,
|
|
map.GetData());
|
|
if (error) {
|
|
*out_glError = error;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////
|
|
|
|
static bool
|
|
GetFormatForSurf(gfx::SourceSurface* surf, WebGLTexelFormat* const out_texelFormat)
|
|
{
|
|
gfx::SurfaceFormat surfFormat = surf->GetFormat();
|
|
|
|
switch (surfFormat) {
|
|
case gfx::SurfaceFormat::B8G8R8A8:
|
|
*out_texelFormat = WebGLTexelFormat::BGRA8;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::B8G8R8X8:
|
|
*out_texelFormat = WebGLTexelFormat::BGRX8;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::R8G8B8A8:
|
|
*out_texelFormat = WebGLTexelFormat::RGBA8;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::R8G8B8X8:
|
|
*out_texelFormat = WebGLTexelFormat::RGBX8;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::R5G6B5_UINT16:
|
|
*out_texelFormat = WebGLTexelFormat::RGB565;
|
|
return true;
|
|
|
|
case gfx::SurfaceFormat::A8:
|
|
*out_texelFormat = WebGLTexelFormat::A8;
|
|
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;
|
|
}
|
|
}
|
|
|
|
static bool
|
|
GetFormatForPackingTuple(GLenum packingFormat, GLenum packingType,
|
|
WebGLTexelFormat* const out_texelFormat)
|
|
{
|
|
switch (packingType) {
|
|
case LOCAL_GL_UNSIGNED_BYTE:
|
|
switch (packingFormat) {
|
|
case LOCAL_GL_RED:
|
|
case LOCAL_GL_LUMINANCE:
|
|
*out_texelFormat = WebGLTexelFormat::R8;
|
|
return true;
|
|
|
|
case LOCAL_GL_ALPHA:
|
|
*out_texelFormat = WebGLTexelFormat::A8;
|
|
return true;
|
|
|
|
case LOCAL_GL_LUMINANCE_ALPHA:
|
|
*out_texelFormat = WebGLTexelFormat::RA8;
|
|
return true;
|
|
|
|
case LOCAL_GL_RGB:
|
|
*out_texelFormat = WebGLTexelFormat::RGB8;
|
|
return true;
|
|
|
|
case LOCAL_GL_RGBA:
|
|
*out_texelFormat = WebGLTexelFormat::RGBA8;
|
|
return true;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case LOCAL_GL_UNSIGNED_SHORT_5_6_5:
|
|
switch (packingFormat) {
|
|
case LOCAL_GL_RGB:
|
|
*out_texelFormat = WebGLTexelFormat::RGB565;
|
|
return true;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case LOCAL_GL_UNSIGNED_SHORT_5_5_5_1:
|
|
switch (packingFormat) {
|
|
case LOCAL_GL_RGBA:
|
|
*out_texelFormat = WebGLTexelFormat::RGBA5551;
|
|
return true;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case LOCAL_GL_UNSIGNED_SHORT_4_4_4_4:
|
|
switch (packingFormat) {
|
|
case LOCAL_GL_RGBA:
|
|
*out_texelFormat = WebGLTexelFormat::RGBA4444;
|
|
return true;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case LOCAL_GL_HALF_FLOAT:
|
|
case LOCAL_GL_HALF_FLOAT_OES:
|
|
switch (packingFormat) {
|
|
case LOCAL_GL_RED:
|
|
case LOCAL_GL_LUMINANCE:
|
|
*out_texelFormat = WebGLTexelFormat::R16F;
|
|
return true;
|
|
|
|
case LOCAL_GL_ALPHA:
|
|
*out_texelFormat = WebGLTexelFormat::A16F;
|
|
return true;
|
|
|
|
case LOCAL_GL_LUMINANCE_ALPHA:
|
|
*out_texelFormat = WebGLTexelFormat::RA16F;
|
|
return true;
|
|
|
|
case LOCAL_GL_RGB:
|
|
*out_texelFormat = WebGLTexelFormat::RGB16F;
|
|
return true;
|
|
|
|
case LOCAL_GL_RGBA:
|
|
*out_texelFormat = WebGLTexelFormat::RGBA16F;
|
|
return true;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case LOCAL_GL_FLOAT:
|
|
switch (packingFormat) {
|
|
case LOCAL_GL_RED:
|
|
case LOCAL_GL_LUMINANCE:
|
|
*out_texelFormat = WebGLTexelFormat::R32F;
|
|
return true;
|
|
|
|
case LOCAL_GL_ALPHA:
|
|
*out_texelFormat = WebGLTexelFormat::A32F;
|
|
return true;
|
|
|
|
case LOCAL_GL_LUMINANCE_ALPHA:
|
|
*out_texelFormat = WebGLTexelFormat::RA32F;
|
|
return true;
|
|
|
|
case LOCAL_GL_RGB:
|
|
*out_texelFormat = WebGLTexelFormat::RGB32F;
|
|
return true;
|
|
|
|
case LOCAL_GL_RGBA:
|
|
*out_texelFormat = WebGLTexelFormat::RGBA32F;
|
|
return true;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
NS_ERROR("Unsupported EffectiveFormat dest format for DOM element upload.");
|
|
return false;
|
|
}
|
|
|
|
/*static*/ bool
|
|
TexUnpackSurface::ConvertSurface(WebGLContext* webgl, const webgl::DriverUnpackInfo* dui,
|
|
gfx::DataSourceSurface* surf, bool isSurfAlphaPremult,
|
|
UniqueBuffer* const out_convertedBuffer,
|
|
uint8_t* const out_convertedAlignment,
|
|
bool* const out_outOfMemory)
|
|
{
|
|
*out_outOfMemory = false;
|
|
|
|
const size_t width = surf->GetSize().width;
|
|
const size_t height = surf->GetSize().height;
|
|
|
|
// Source args:
|
|
|
|
// After we call this, on OSX, our GLContext will no longer be current.
|
|
gfx::DataSourceSurface::ScopedMap srcMap(surf, gfx::DataSourceSurface::MapType::READ);
|
|
if (!srcMap.IsMapped())
|
|
return false;
|
|
|
|
const void* const srcBegin = srcMap.GetData();
|
|
const size_t srcStride = srcMap.GetStride();
|
|
|
|
WebGLTexelFormat srcFormat;
|
|
if (!GetFormatForSurf(surf, &srcFormat))
|
|
return false;
|
|
|
|
const bool srcPremultiplied = isSurfAlphaPremult;
|
|
|
|
// Dest args:
|
|
|
|
WebGLTexelFormat dstFormat;
|
|
if (!GetFormatForPackingTuple(dui->unpackFormat, dui->unpackType, &dstFormat))
|
|
return false;
|
|
|
|
const auto bytesPerPixel = webgl::BytesPerPixel({dui->unpackFormat, dui->unpackType});
|
|
const size_t dstRowBytes = bytesPerPixel * width;
|
|
|
|
const size_t dstAlignment = 8; // Just use the max!
|
|
const size_t dstStride = RoundUpToMultipleOf(dstRowBytes, dstAlignment);
|
|
|
|
CheckedUint32 checkedDstSize = dstStride;
|
|
checkedDstSize *= height;
|
|
if (!checkedDstSize.isValid()) {
|
|
*out_outOfMemory = true;
|
|
return false;
|
|
}
|
|
|
|
const size_t dstSize = checkedDstSize.value();
|
|
|
|
UniqueBuffer dstBuffer = malloc(dstSize);
|
|
if (!dstBuffer) {
|
|
*out_outOfMemory = true;
|
|
return false;
|
|
}
|
|
void* const dstBegin = dstBuffer.get();
|
|
|
|
gl::OriginPos srcOrigin, dstOrigin;
|
|
OriginsForDOM(webgl, &srcOrigin, &dstOrigin);
|
|
|
|
const bool dstPremultiplied = webgl->mPixelStore_PremultiplyAlpha;
|
|
|
|
// And go!:
|
|
if (!ConvertImage(width, height,
|
|
srcBegin, srcStride, srcOrigin, srcFormat, srcPremultiplied,
|
|
dstBegin, dstStride, dstOrigin, dstFormat, dstPremultiplied))
|
|
{
|
|
MOZ_ASSERT(false, "ConvertImage failed unexpectedly.");
|
|
NS_ERROR("ConvertImage failed unexpectedly.");
|
|
*out_outOfMemory = true;
|
|
return false;
|
|
}
|
|
|
|
*out_convertedBuffer = Move(dstBuffer);
|
|
*out_convertedAlignment = dstAlignment;
|
|
return true;
|
|
}
|
|
|
|
|
|
////////////////////
|
|
|
|
TexUnpackSurface::TexUnpackSurface(const RefPtr<gfx::SourceSurface>& surf,
|
|
bool isAlphaPremult)
|
|
: TexUnpackBlob(surf->GetSize().width, surf->GetSize().height, 1, true)
|
|
, mSurf(surf)
|
|
, mIsAlphaPremult(isAlphaPremult)
|
|
{ }
|
|
|
|
TexUnpackSurface::~TexUnpackSurface()
|
|
{ }
|
|
|
|
void
|
|
TexUnpackSurface::TexOrSubImage(bool isSubImage, bool needsRespec, const char* funcName,
|
|
WebGLTexture* tex, TexImageTarget target, GLint level,
|
|
const webgl::DriverUnpackInfo* dui, GLint xOffset,
|
|
GLint yOffset, GLint zOffset, GLenum* const out_glError)
|
|
{
|
|
*out_glError = 0;
|
|
|
|
WebGLContext* webgl = tex->mContext;
|
|
|
|
// MakeCurrent is a big mess in here, because mapping (and presumably unmapping) on
|
|
// OSX can lose our MakeCurrent. Therefore it's easiest to MakeCurrent just before we
|
|
// call into GL, instead of trying to keep MakeCurrent-ed.
|
|
|
|
RefPtr<gfx::DataSourceSurface> dataSurf = mSurf->GetDataSurface();
|
|
|
|
if (!dataSurf) {
|
|
// Since GetDataSurface didn't return error code, assume system
|
|
// is out of memory
|
|
*out_glError = LOCAL_GL_OUT_OF_MEMORY;
|
|
return;
|
|
}
|
|
|
|
GLenum error;
|
|
if (UploadDataSurface(isSubImage, webgl, target, level, dui, xOffset, yOffset,
|
|
zOffset, mWidth, mHeight, dataSurf, mIsAlphaPremult, &error))
|
|
{
|
|
return;
|
|
}
|
|
if (error == LOCAL_GL_OUT_OF_MEMORY) {
|
|
*out_glError = LOCAL_GL_OUT_OF_MEMORY;
|
|
return;
|
|
}
|
|
|
|
// CPU conversion. (++numCopies)
|
|
|
|
UniqueBuffer convertedBuffer;
|
|
uint8_t convertedAlignment;
|
|
bool outOfMemory;
|
|
if (!ConvertSurface(webgl, dui, dataSurf, mIsAlphaPremult, &convertedBuffer,
|
|
&convertedAlignment, &outOfMemory))
|
|
{
|
|
if (outOfMemory) {
|
|
*out_glError = LOCAL_GL_OUT_OF_MEMORY;
|
|
} else {
|
|
NS_ERROR("Failed to convert surface.");
|
|
*out_glError = LOCAL_GL_OUT_OF_MEMORY;
|
|
}
|
|
return;
|
|
}
|
|
|
|
MOZ_ALWAYS_TRUE( webgl->gl->MakeCurrent() );
|
|
ScopedUnpackReset scopedReset(webgl);
|
|
webgl->gl->fPixelStorei(LOCAL_GL_UNPACK_ALIGNMENT, convertedAlignment);
|
|
|
|
error = DoTexOrSubImage(isSubImage, webgl->gl, target.get(), level, dui, xOffset,
|
|
yOffset, zOffset, mWidth, mHeight, mDepth,
|
|
convertedBuffer.get());
|
|
*out_glError = error;
|
|
}
|
|
|
|
} // namespace webgl
|
|
} // namespace mozilla
|