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externs.go
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externs.go
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// Copyright (C) 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gles
import (
"context"
"fmt"
"github.com/google/gapid/core/log"
"github.com/google/gapid/core/os/device"
"github.com/google/gapid/gapis/api"
"github.com/google/gapid/gapis/capture"
"github.com/google/gapid/gapis/database"
"github.com/google/gapid/gapis/memory"
"github.com/google/gapid/gapis/replay"
rb "github.com/google/gapid/gapis/replay/builder"
"github.com/google/gapid/gapis/resolve"
"github.com/google/gapid/gapis/service/path"
"github.com/google/gapid/gapis/stringtable"
"github.com/pkg/errors"
)
type externs struct {
ctx context.Context // Allowed because the externs struct is only a parameter proxy for a single call
cmd api.Cmd
cmdID api.CmdID
s *api.GlobalState
b *rb.Builder
w api.StateWatcher
}
func (e externs) mapMemory(slice memory.Slice) {
ctx := e.ctx
if b := e.b; b != nil {
switch e.cmd.(type) {
case *GlMapBufferRange, *GlMapBufferRangeEXT, *GlMapBufferOES, *GlMapBuffer:
// Base address is on the stack.
b.MapMemory(memory.Range{Base: slice.Base(), Size: slice.Size()})
default:
log.E(ctx, "mapBuffer extern called for unsupported command: %v", e.cmd)
}
}
}
func (e externs) unmapMemory(slice memory.Slice) {
if b := e.b; b != nil {
b.UnmapMemory(memory.Range{Base: slice.Base(), Size: slice.Size()})
}
}
func (e externs) GetEGLStaticContextState(EGLDisplay, EGLContext) StaticContextStateʳ {
return FindStaticContextState(e.s.Arena, e.cmd.Extras()).Clone(e.s.Arena, api.CloneContext{})
}
func (e externs) GetEGLDynamicContextState(EGLDisplay, EGLSurface, EGLContext) DynamicContextStateʳ {
return FindDynamicContextState(e.s.Arena, e.cmd.Extras()).Clone(e.s.Arena, api.CloneContext{})
}
func (e externs) GetAndroidNativeBufferExtra(Voidᵖ) AndroidNativeBufferExtraʳ {
return FindAndroidNativeBufferExtra(e.s.Arena, e.cmd.Extras()).Clone(e.s.Arena, api.CloneContext{})
}
func (e externs) GetEGLImageData(id EGLImageKHR, _ GLsizei, _ GLsizei) {
if d := FindEGLImageData(e.cmd.Extras()); d != nil {
if GetState(e.s).EGLImages().Contains(id) {
ei := GetState(e.s).EGLImages().Get(id)
for _, img := range ei.Images().All() {
poolID, pool := e.s.Memory.New()
pool.Write(0, memory.Resource(d.ID, d.Size))
data := NewU8ˢ(e.s.Arena, 0, 0, d.Size, d.Size, poolID)
img.SetWidth(GLsizei(d.Width))
img.SetHeight(GLsizei(d.Height))
img.SetData(data)
img.SetDataFormat(d.Format)
img.SetDataType(d.Type)
break // TODO: Support image arrays.
}
}
}
}
func (e externs) calcIndexLimits(data U8ˢ, indexSize int) resolve.IndexRange {
id := data.ResourceID(e.ctx, e.s)
count := int(data.Size()) / int(indexSize)
littleEndian := e.s.MemoryLayout.GetEndian() == device.LittleEndian
limits, err := resolve.IndexLimits(e.ctx, id, count, indexSize, littleEndian)
if err != nil {
if errors.Cause(err) == context.Canceled {
// TODO: Propagate error
return resolve.IndexRange{}
}
panic(fmt.Errorf("Could not calculate index limits: %v", err))
}
return *limits
}
func (e externs) IndexLimits(data U8ˢ, indexSize int32) U32Limits {
limits := e.calcIndexLimits(data, int(indexSize))
return NewU32Limits(e.s.Arena, limits.First, limits.Count)
}
func (e externs) substr(str string, start, end int32) string {
return str[start:end]
}
func (e externs) GetCompileShaderExtra(ctx Contextʳ, obj Shaderʳ, bin BinaryExtraʳ) CompileShaderExtraʳ {
return FindCompileShaderExtra(e.s.Arena, e.cmd.Extras(), obj).Clone(e.s.Arena, api.CloneContext{})
}
func (e externs) GetLinkProgramExtra(ctx Contextʳ, obj Programʳ, bin BinaryExtraʳ) LinkProgramExtraʳ {
return FindLinkProgramExtra(e.s.Arena, e.cmd.Extras()).Clone(e.s.Arena, api.CloneContext{})
}
func (e externs) GetValidateProgramExtra(ctx Contextʳ, obj Programʳ) ValidateProgramExtraʳ {
return FindValidateProgramExtra(e.s.Arena, e.cmd.Extras()).Clone(e.s.Arena, api.CloneContext{})
}
func (e externs) GetValidateProgramPipelineExtra(ctx Contextʳ, obj Pipelineʳ) ValidateProgramPipelineExtraʳ {
return FindValidateProgramPipelineExtra(e.s.Arena, e.cmd.Extras()).Clone(e.s.Arena, api.CloneContext{})
}
func (e externs) onGlError(err GLenum) {
// Call the state's callback function for API error.
if f := e.s.OnError; f != nil {
f(err)
}
}
func (e externs) newMsg(severity Severity, message *stringtable.Msg) uint32 {
// Call the state's callback function for message.
if f := e.s.NewMessage; f != nil {
return f(severityFromEnum(severity), message)
}
return 0
}
// Maps generated Severity to one of the const values defined in log.
func severityFromEnum(enumValue Severity) log.Severity {
switch enumValue {
case Severity_SEVERITY_DEBUG:
return log.Debug
case Severity_SEVERITY_INFO:
return log.Info
case Severity_SEVERITY_WARNING:
return log.Warning
case Severity_SEVERITY_ERROR:
return log.Error
case Severity_SEVERITY_FATAL:
return log.Fatal
default:
panic(fmt.Errorf("Bad Severity value %v", enumValue))
}
}
func (e externs) addTag(msgID uint32, message *stringtable.Msg) {
// Call the state's callback function for message.
if f := e.s.AddTag; f != nil {
f(msgID, message)
}
}
func (e externs) ReadGPUTextureData(texture Textureʳ, level, layer GLint) U8ˢ {
poolID, dst := e.s.Memory.New()
img := texture.Levels().Get(level).Layers().Get(layer)
dataFormat, dataType := img.getUnsizedFormatAndType()
format, err := getImageFormat(dataFormat, dataType)
if err != nil {
panic(err)
}
size := format.Size(int(img.Width()), int(img.Height()), 1)
device := replay.GetDevice(e.ctx)
if device == nil {
log.W(e.ctx, "No device bound for GPU texture read")
return NewU8ˢ(e.s.Arena, 0, 0, uint64(size), uint64(size), poolID)
}
dataID, err := database.Store(e.ctx, &ReadGPUTextureDataResolveable{
Capture: path.NewCapture(capture.Get(e.ctx).ID.ID()),
Device: device,
After: uint64(e.cmdID),
Thread: e.cmd.Thread(),
Texture: uint32(texture.ID()),
Level: uint32(level),
Layer: uint32(layer),
DataFormat: uint32(dataFormat),
DataType: uint32(dataType),
})
if err != nil {
panic(err)
}
data := memory.Resource(dataID, uint64(size))
dst.Write(0, data)
return NewU8ˢ(e.s.Arena, 0, 0, uint64(size), uint64(size), poolID)
}