/**
* A function which emits a meta key into the key builder. This is required because shader code may
* be dependent on properties of the effect that the effect itself doesn't use
* in its key (e.g. the pixel format of textures used). So we create a meta-key for
* every effect using this function. It is also responsible for inserting the effect's class ID
* which must be different for every GrProcessor subclass. It can fail if an effect uses too many
* textures, transforms, etc, for the space allotted in the meta-key. NOTE, both FPs and GPs share
* this function because it is hairy, though FPs do not have attribs, and GPs do not have transforms
*/
static bool get_meta_key(const GrProcessor& proc,
const GrGLCaps& caps,
uint32_t transformKey,
uint32_t attribKey,
GrProcessorKeyBuilder* b,
uint16_t* processorKeySize) {
const GrBackendProcessorFactory& factory = proc.getFactory();
factory.getGLProcessorKey(proc, caps, b);
size_t size = b->size();
if (size > SK_MaxU16) {
*processorKeySize = 0; // suppresses a warning.
return false;
}
*processorKeySize = SkToU16(size);
uint32_t textureKey = gen_texture_key(proc, caps);
uint32_t classID = proc.getFactory().classID();
// Currently we allow 16 bits for each of the above portions of the meta-key. Fail if they
// don't fit.
static const uint32_t kMetaKeyInvalidMask = ~((uint32_t) SK_MaxU16);
if ((textureKey | transformKey | classID) & kMetaKeyInvalidMask) {
return false;
}
uint32_t* key = b->add32n(2);
key[0] = (textureKey << 16 | transformKey);
key[1] = (classID << 16);
return true;
}
static void add_sampler_keys(GrProcessorKeyBuilder* b, const GrProcessor& proc,
const GrGLSLCaps& caps) {
int numTextures = proc.numTextures();
int numSamplers = numTextures + proc.numBuffers();
// Need two bytes per key (swizzle, sampler type, and precision).
int word32Count = (numSamplers + 1) / 2;
if (0 == word32Count) {
return;
}
uint16_t* k16 = SkTCast<uint16_t*>(b->add32n(word32Count));
int i = 0;
for (; i < numTextures; ++i) {
const GrTextureAccess& access = proc.textureAccess(i);
const GrTexture* tex = access.getTexture();
k16[i] = sampler_key(tex->samplerType(), tex->config(), access.getVisibility(), caps);
}
for (; i < numSamplers; ++i) {
const GrBufferAccess& access = proc.bufferAccess(i - numTextures);
k16[i] = sampler_key(kSamplerBuffer_GrSLType, access.texelConfig(), access.visibility(),
caps);
}
// zero the last 16 bits if the number of samplers is odd.
if (numSamplers & 0x1) {
k16[numSamplers] = 0;
}
}
static void prepare_sampled_images(const GrProcessor& processor, GrVkGpu* gpu) {
for (int i = 0; i < processor.numTextures(); ++i) {
const GrTextureAccess& texAccess = processor.textureAccess(i);
GrVkTexture* vkTexture = static_cast<GrVkTexture*>(processor.texture(i));
SkASSERT(vkTexture);
// We may need to resolve the texture first if it is also a render target
GrVkRenderTarget* texRT = static_cast<GrVkRenderTarget*>(vkTexture->asRenderTarget());
if (texRT) {
gpu->onResolveRenderTarget(texRT);
}
const GrTextureParams& params = texAccess.getParams();
// Check if we need to regenerate any mip maps
if (GrTextureParams::kMipMap_FilterMode == params.filterMode()) {
if (vkTexture->texturePriv().mipMapsAreDirty()) {
gpu->generateMipmap(vkTexture);
vkTexture->texturePriv().dirtyMipMaps(false);
}
}
// TODO: If we ever decide to create the secondary command buffers ahead of time before we
// are actually going to submit them, we will need to track the sampled images and delay
// adding the layout change/barrier until we are ready to submit.
vkTexture->setImageLayout(gpu,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
VK_ACCESS_SHADER_READ_BIT,
VK_PIPELINE_STAGE_ALL_GRAPHICS_BIT,
false);
}
}
void GrGLProgram::generateMipmaps(const GrProcessor& processor,
bool allowSRGBInputs) {
for (int i = 0; i < processor.numTextures(); ++i) {
const GrTextureAccess& access = processor.textureAccess(i);
fGpu->generateMipmaps(access.getParams(), allowSRGBInputs,
static_cast<GrGLTexture*>(access.getTexture()));
}
}
static void append_texture_bindings(const GrProcessor& processor,
SkTArray<const GrTextureAccess*>* textureBindings) {
if (int numTextures = processor.numTextures()) {
const GrTextureAccess** bindings = textureBindings->push_back_n(numTextures);
int i = 0;
do {
bindings[i] = &processor.textureAccess(i);
} while (++i < numTextures);
}
}
bool GrProcessor::hasSameTextureAccesses(const GrProcessor& that) const {
if (this->numTextures() != that.numTextures()) {
return false;
}
for (int i = 0; i < this->numTextures(); ++i) {
if (this->textureAccess(i) != that.textureAccess(i)) {
return false;
}
}
return true;
}
static uint32_t gen_texture_key(const GrProcessor& proc, const GrGLCaps& caps) {
uint32_t key = 0;
int numTextures = proc.numTextures();
for (int t = 0; t < numTextures; ++t) {
const GrTextureAccess& access = proc.textureAccess(t);
uint32_t configComponentMask = GrPixelConfigComponentMask(access.getTexture()->config());
if (swizzle_requires_alpha_remapping(caps, configComponentMask, access.swizzleMask())) {
key |= 1 << t;
}
}
return key;
}
void GrGLProgram::bindTextures(const GrGLInstalledProc* ip, const GrProcessor& processor) {
const SkTArray<GrGLInstalledProc::Sampler, true>& samplers = ip->fSamplers;
int numSamplers = samplers.count();
SkASSERT(numSamplers == processor.numTextures());
for (int s = 0; s < numSamplers; ++s) {
SkASSERT(samplers[s].fTextureUnit >= 0);
const GrTextureAccess& textureAccess = processor.textureAccess(s);
fGpu->bindTexture(samplers[s].fTextureUnit,
textureAccess.getParams(),
static_cast<GrGLTexture*>(textureAccess.getTexture()));
}
}
void GrGLProgram::bindTextures(const GrProcessor& processor,
bool allowSRGBInputs,
int* nextSamplerIdx) {
for (int i = 0; i < processor.numTextures(); ++i) {
const GrTextureAccess& access = processor.textureAccess(i);
fGpu->bindTexture((*nextSamplerIdx)++, access.getParams(),
allowSRGBInputs, static_cast<GrGLTexture*>(access.getTexture()));
}
for (int i = 0; i < processor.numBuffers(); ++i) {
const GrBufferAccess& access = processor.bufferAccess(i);
fGpu->bindTexelBuffer((*nextSamplerIdx)++, access.offsetInBytes(), access.texelConfig(),
static_cast<GrGLBuffer*>(access.buffer()));
}
}
void GrVkProgramBuilder::emitSamplers(const GrProcessor& processor,
GrGLSLTextureSampler::TextureSamplerArray* outSamplers) {
int numTextures = processor.numTextures();
UniformHandle* localSamplerUniforms = fSamplerUniforms.push_back_n(numTextures);
SkString name;
for (int t = 0; t < numTextures; ++t) {
name.printf("%d", t);
localSamplerUniforms[t] =
fUniformHandler.addUniform(kFragment_GrShaderFlag,
kSampler2D_GrSLType, kDefault_GrSLPrecision,
name.c_str());
outSamplers->emplace_back(localSamplerUniforms[t], processor.textureAccess(t));
}
}
void GrGLProgramBuilder::emitSamplers(const GrProcessor& processor,
GrGLProcessor::TextureSamplerArray* outSamplers,
GrGLInstalledProc<Proc>* ip) {
int numTextures = processor.numTextures();
ip->fSamplers.push_back_n(numTextures);
SkString name;
for (int t = 0; t < numTextures; ++t) {
name.printf("Sampler%d", t);
ip->fSamplers[t].fUniform = this->addUniform(GrGLProgramBuilder::kFragment_Visibility,
kSampler2D_GrSLType, kDefault_GrSLPrecision,
name.c_str());
SkNEW_APPEND_TO_TARRAY(outSamplers, GrGLProcessor::TextureSampler,
(ip->fSamplers[t].fUniform, processor.textureAccess(t)));
}
}
static uint32_t gen_texture_key(const GrProcessor& proc, const GrGLCaps& caps) {
uint32_t key = 0;
int numTextures = proc.numTextures();
int shift = 0;
for (int t = 0; t < numTextures; ++t) {
const GrTextureAccess& access = proc.textureAccess(t);
if (swizzle_requires_alpha_remapping(*caps.glslCaps(), access.getTexture()->config())) {
key |= 1 << shift;
}
if (GR_GL_TEXTURE_EXTERNAL == static_cast<GrGLTexture*>(access.getTexture())->target()) {
key |= 2 << shift;
}
shift += 2;
}
return key;
}
void GrGLBicubicEffect::onSetData(const GrGLSLProgramDataManager& pdman,
const GrProcessor& processor) {
const GrBicubicEffect& bicubicEffect = processor.cast<GrBicubicEffect>();
const GrTexture& texture = *processor.texture(0);
float imageIncrement[2];
imageIncrement[0] = 1.0f / texture.width();
imageIncrement[1] = 1.0f / texture.height();
pdman.set2fv(fImageIncrementUni, 1, imageIncrement);
pdman.setMatrix4f(fCoefficientsUni, bicubicEffect.coefficients());
fDomain.setData(pdman, bicubicEffect.domain(), texture.origin());
}
static void add_texture_key(GrProcessorKeyBuilder* b, const GrProcessor& proc,
const GrGLSLCaps& caps) {
int numTextures = proc.numTextures();
SkASSERT(0 == proc.numBuffers());
// Need two bytes per key (swizzle, sampler type, and precision).
int word32Count = (proc.numTextures() + 1) / 2;
if (0 == word32Count) {
return;
}
uint16_t* k16 = SkTCast<uint16_t*>(b->add32n(word32Count));
for (int i = 0; i < numTextures; ++i) {
const GrTextureAccess& access = proc.textureAccess(i);
GrTexture* texture = access.getTexture();
k16[i] = SkToU16(caps.configTextureSwizzle(texture->config()).asKey() |
(caps.samplerPrecision(texture->config(), access.getVisibility()) << 8));
}
// zero the last 16 bits if the number of textures is odd.
if (numTextures & 0x1) {
k16[numTextures] = 0;
}
}
void GrGLProgramBuilder::emitSamplers(const GrProcessor& processor,
GrGLSLTextureSampler::TextureSamplerArray* outSamplers) {
int numTextures = processor.numTextures();
UniformHandle* localSamplerUniforms = fSamplerUniforms.push_back_n(numTextures);
SkString name;
for (int t = 0; t < numTextures; ++t) {
name.printf("Sampler%d", t);
GrSLType samplerType = get_sampler_type(processor.textureAccess(t));
localSamplerUniforms[t] =
fUniformHandler.addUniform(GrGLSLUniformHandler::kFragment_Visibility,
samplerType, kDefault_GrSLPrecision,
name.c_str());
SkNEW_APPEND_TO_TARRAY(outSamplers, GrGLSLTextureSampler,
(localSamplerUniforms[t], processor.textureAccess(t)));
if (kSamplerExternal_GrSLType == samplerType) {
const char* externalFeatureString = this->glslCaps()->externalTextureExtensionString();
// We shouldn't ever create a GrGLTexture that requires external sampler type
SkASSERT(externalFeatureString);
fFS.addFeature(1 << GrGLSLFragmentShaderBuilder::kExternalTexture_GLSLPrivateFeature,
externalFeatureString);
}
}
}
/**
* A function which emits a meta key into the key builder. This is required because shader code may
* be dependent on properties of the effect that the effect itself doesn't use
* in its key (e.g. the pixel format of textures used). So we create a meta-key for
* every effect using this function. It is also responsible for inserting the effect's class ID
* which must be different for every GrProcessor subclass. It can fail if an effect uses too many
* transforms, etc, for the space allotted in the meta-key. NOTE, both FPs and GPs share this
* function because it is hairy, though FPs do not have attribs, and GPs do not have transforms
*/
static bool gen_meta_key(const GrProcessor& proc,
const GrGLSLCaps& glslCaps,
uint32_t transformKey,
GrProcessorKeyBuilder* b) {
size_t processorKeySize = b->size();
uint32_t classID = proc.classID();
// Currently we allow 16 bits for the class id and the overall processor key size.
static const uint32_t kMetaKeyInvalidMask = ~((uint32_t)SK_MaxU16);
if ((processorKeySize | classID) & kMetaKeyInvalidMask) {
return false;
}
add_texture_key(b, proc, glslCaps);
uint32_t* key = b->add32n(2);
key[0] = (classID << 16) | SkToU32(processorKeySize);
key[1] = transformKey;
return true;
}
/**
* A function which emits a meta key into the key builder. This is required because shader code may
* be dependent on properties of the effect that the effect itself doesn't use
* in its key (e.g. the pixel format of textures used). So we create a meta-key for
* every effect using this function. It is also responsible for inserting the effect's class ID
* which must be different for every GrProcessor subclass. It can fail if an effect uses too many
* textures, transforms, etc, for the space allotted in the meta-key. NOTE, both FPs and GPs share
* this function because it is hairy, though FPs do not have attribs, and GPs do not have transforms
*/
static bool get_meta_key(const GrProcessor& proc,
const GrGLCaps& caps,
uint32_t transformKey,
GrProcessorKeyBuilder* b) {
size_t processorKeySize = b->size();
uint32_t textureKey = gen_texture_key(proc, caps);
uint32_t classID = proc.classID();
// Currently we allow 16 bits for each of the above portions of the meta-key. Fail if they
// don't fit.
static const uint32_t kMetaKeyInvalidMask = ~((uint32_t) SK_MaxU16);
if ((textureKey | transformKey | classID) & kMetaKeyInvalidMask) {
return false;
}
if (processorKeySize > SK_MaxU16) {
return false;
}
uint32_t* key = b->add32n(2);
key[0] = (textureKey << 16 | transformKey);
key[1] = (classID << 16 | SkToU16(processorKeySize));
return true;
}