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gpu: [compute] generalize sizedBuffer to cover vertex buffers

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Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2021-05-04 21:35:39 +02:00
parent 2c07b2dc0e
commit 82fff0178b
1 changed files with 12 additions and 26 deletions
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gpu/compute.go
+12 -26
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@@ -76,8 +76,7 @@ type compute struct {
fbo driver.Framebuffer fbo driver.Framebuffer
quads []materialVertex quads []materialVertex
bufSize int buffer sizedBuffer
buffer driver.Buffer
} }
timers struct { timers struct {
profile string profile string
@@ -457,20 +456,9 @@ restart:
m.quads[i].posY = p.Y m.quads[i].posY = p.Y
} }
vertexData := byteslice.Slice(m.quads) vertexData := byteslice.Slice(m.quads)
if len(vertexData) > m.bufSize { n := pow2Ceil(len(vertexData))
if m.buffer != nil { m.buffer.ensureCapacity(g.ctx, driver.BufferBindingVertices, n)
m.buffer.Release() m.buffer.buffer.Upload(vertexData)
m.buffer = nil
}
n := pow2Ceil(len(vertexData))
buf, err := g.ctx.NewBuffer(driver.BufferBindingVertices, n)
if err != nil {
return err
}
m.bufSize = n
m.buffer = buf
}
m.buffer.Upload(vertexData)
g.ctx.BindTexture(0, g.images.tex) g.ctx.BindTexture(0, g.images.tex)
g.ctx.BindFramebuffer(m.fbo) g.ctx.BindFramebuffer(m.fbo)
g.ctx.Viewport(0, 0, texSize, texSize) g.ctx.Viewport(0, 0, texSize, texSize)
@@ -478,7 +466,7 @@ restart:
g.ctx.Clear(0, 0, 0, 0) g.ctx.Clear(0, 0, 0, 0)
} }
g.ctx.BindProgram(m.prog) g.ctx.BindProgram(m.prog)
g.ctx.BindVertexBuffer(m.buffer, int(unsafe.Sizeof(m.quads[0])), 0) g.ctx.BindVertexBuffer(m.buffer.buffer, int(unsafe.Sizeof(m.quads[0])), 0)
g.ctx.BindInputLayout(m.layout) g.ctx.BindInputLayout(m.layout)
g.ctx.DrawArrays(driver.DrawModeTriangles, 0, len(m.quads)) g.ctx.DrawArrays(driver.DrawModeTriangles, 0, len(m.quads))
return nil return nil
@@ -738,7 +726,7 @@ func (g *compute) render(tileDims image.Point) error {
if s := len(scene); s > g.buffers.scene.size { if s := len(scene); s > g.buffers.scene.size {
realloced = true realloced = true
paddedCap := s * 11 / 10 paddedCap := s * 11 / 10
if err := g.buffers.scene.ensureCapacity(g.ctx, paddedCap); err != nil { if err := g.buffers.scene.ensureCapacity(g.ctx, driver.BufferBindingShaderStorage, paddedCap); err != nil {
return err return err
} }
} }
@@ -786,7 +774,7 @@ func (g *compute) render(tileDims image.Point) error {
if clearSize > g.buffers.state.size { if clearSize > g.buffers.state.size {
realloced = true realloced = true
paddedCap := clearSize * 11 / 10 paddedCap := clearSize * 11 / 10
if err := g.buffers.state.ensureCapacity(g.ctx, paddedCap); err != nil { if err := g.buffers.state.ensureCapacity(g.ctx, driver.BufferBindingShaderStorage, paddedCap); err != nil {
return err return err
} }
} }
@@ -799,7 +787,7 @@ func (g *compute) render(tileDims image.Point) error {
// Add space for dynamic GPU allocations. // Add space for dynamic GPU allocations.
const sizeBump = 4 * 1024 * 1024 const sizeBump = 4 * 1024 * 1024
minSize += sizeBump minSize += sizeBump
if err := g.buffers.memory.ensureCapacity(g.ctx, minSize); err != nil { if err := g.buffers.memory.ensureCapacity(g.ctx, driver.BufferBindingShaderStorage, minSize); err != nil {
return err return err
} }
} }
@@ -863,7 +851,7 @@ func (g *compute) render(tileDims image.Point) error {
// Resize memory and try again. // Resize memory and try again.
realloced = true realloced = true
sz := g.buffers.memory.size * 15 / 10 sz := g.buffers.memory.size * 15 / 10
if err := g.buffers.memory.ensureCapacity(g.ctx, sz); err != nil { if err := g.buffers.memory.ensureCapacity(g.ctx, driver.BufferBindingShaderStorage, sz); err != nil {
return err return err
} }
continue continue
@@ -946,9 +934,7 @@ func (g *compute) Release() {
if g.materials.tex != nil { if g.materials.tex != nil {
g.materials.tex.Release() g.materials.tex.Release()
} }
if g.materials.buffer != nil { g.materials.buffer.release()
g.materials.buffer.Release()
}
if g.timers.t != nil { if g.timers.t != nil {
g.timers.t.release() g.timers.t.release()
} }
@@ -974,14 +960,14 @@ func (b *sizedBuffer) release() {
*b = sizedBuffer{} *b = sizedBuffer{}
} }
func (b *sizedBuffer) ensureCapacity(ctx driver.Device, size int) error { func (b *sizedBuffer) ensureCapacity(ctx driver.Device, binding driver.BufferBinding, size int) error {
if b.size >= size { if b.size >= size {
return nil return nil
} }
if b.buffer != nil { if b.buffer != nil {
b.release() b.release()
} }
buf, err := ctx.NewBuffer(driver.BufferBindingShaderStorage, size) buf, err := ctx.NewBuffer(binding, size)
if err != nil { if err != nil {
return err return err
} }