GrProgramDesc.cpp File Reference

#include "src/gpu/ganesh/GrProgramDesc.h"
#include "include/private/base/SkTo.h"
#include "src/core/SkChecksum.h"
#include "src/gpu/KeyBuilder.h"
#include "src/gpu/ganesh/GrCaps.h"
#include "src/gpu/ganesh/GrFragmentProcessor.h"
#include "src/gpu/ganesh/GrGeometryProcessor.h"
#include "src/gpu/ganesh/GrPipeline.h"
#include "src/gpu/ganesh/GrProcessor.h"
#include "src/gpu/ganesh/GrProgramInfo.h"
#include "src/gpu/ganesh/GrRenderTarget.h"
#include "src/gpu/ganesh/GrShaderCaps.h"
#include "src/gpu/ganesh/GrTexture.h"
#include "src/gpu/ganesh/effects/GrTextureEffect.h"
#include "src/gpu/ganesh/glsl/GrGLSLFragmentShaderBuilder.h"

Go to the source code of this file.

Enumerations
enum	{ kSamplerOrImageTypeKeyBits = 4 }

Functions
static uint16_t	texture_type_key (GrTextureType type)
static uint32_t	sampler_key (GrTextureType textureType, const skgpu::Swizzle &swizzle, const GrCaps &caps)
static void	add_geomproc_sampler_keys (skgpu::KeyBuilder *b, const GrGeometryProcessor &geomProc, const GrCaps &caps)
static void	gen_geomproc_key (const GrGeometryProcessor &geomProc, const GrCaps &caps, skgpu::KeyBuilder *b)
static void	gen_xp_key (const GrXferProcessor &xp, const GrCaps &caps, const GrPipeline &pipeline, skgpu::KeyBuilder *b)
static void	gen_fp_key (const GrFragmentProcessor &fp, const GrCaps &caps, skgpu::KeyBuilder *b)
static void	gen_key (skgpu::KeyBuilder *b, const GrProgramInfo &programInfo, const GrCaps &caps)

Variables
static constexpr uint32_t	kClassIDBits = 8

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
kSamplerOrImageTypeKeyBits

Definition at line 25 of file GrProgramDesc.cpp.

     {
    kSamplerOrImageTypeKeyBits = 4
};

Function Documentation

add_geomproc_sampler_keys()

static void add_geomproc_sampler_keys ( skgpu::KeyBuilder *  b, const GrGeometryProcessor &  geomProc, const GrCaps &  caps  )

static

Definition at line 59 of file GrProgramDesc.cpp.

                                                          {
    int numTextureSamplers = geomProc.numTextureSamplers();
    b->add32(numTextureSamplers, "ppNumSamplers");
    for (int i = 0; i < numTextureSamplers; ++i) {
        const GrGeometryProcessor::TextureSampler& sampler = geomProc.textureSampler(i);
        const GrBackendFormat& backendFormat = sampler.backendFormat();
 
        uint32_t samplerKey = sampler_key(backendFormat.textureType(), sampler.swizzle(), caps);
        b->add32(samplerKey);
 
        caps.addExtraSamplerKey(b, sampler.samplerState(), backendFormat);
    }
}

gen_fp_key()

static void gen_fp_key ( const GrFragmentProcessor &  fp, const GrCaps &  caps, skgpu::KeyBuilder *  b  )

static

Definition at line 122 of file GrProgramDesc.cpp.

                                           {
    b->appendComment(fp.name());
    b->addBits(kClassIDBits, fp.classID(), "fpClassID");
    b->addBits(GrGeometryProcessor::kCoordTransformKeyBits,
               GrGeometryProcessor::ComputeCoordTransformsKey(fp), "fpTransforms");
 
    if (auto* te = fp.asTextureEffect()) {
        const GrBackendFormat& backendFormat = te->view().proxy()->backendFormat();
        uint32_t samplerKey = sampler_key(backendFormat.textureType(), te->view().swizzle(), caps);
        b->add32(samplerKey, "fpSamplerKey");
        caps.addExtraSamplerKey(b, te->samplerState(), backendFormat);
    }
 
    fp.addToKey(*caps.shaderCaps(), b);
    b->add32(fp.numChildProcessors(), "fpNumChildren");
 
    for (int i = 0; i < fp.numChildProcessors(); ++i) {
        if (auto child = fp.childProcessor(i)) {
            gen_fp_key(*child, caps, b);
        } else {
            // Fold in a sentinel value as the "class ID" for any null children
            b->appendComment("Null");
            b->addBits(kClassIDBits, GrProcessor::ClassID::kNull_ClassID, "fpClassID");
        }
    }
}

gen_geomproc_key()

static void gen_geomproc_key ( const GrGeometryProcessor &  geomProc, const GrCaps &  caps, skgpu::KeyBuilder *  b  )

static

Functions which emit processor key info into the key builder. For every effect, we include the effect's class ID (different for every GrProcessor subclass), any information generated by the effect itself (addToKey), and some meta-information. Shader code may be dependent on properties of the effect not placed in the key by the effect (e.g. pixel format of textures used).

Definition at line 85 of file GrProgramDesc.cpp.

                                                 {
    b->appendComment(geomProc.name());
    b->addBits(kClassIDBits, geomProc.classID(), "geomProcClassID");
 
    geomProc.addToKey(*caps.shaderCaps(), b);
    geomProc.getAttributeKey(b);
 
    add_geomproc_sampler_keys(b, geomProc, caps);
}

gen_key()

static void gen_key ( skgpu::KeyBuilder *  b, const GrProgramInfo &  programInfo, const GrCaps &  caps  )

static

Definition at line 151 of file GrProgramDesc.cpp.

                                        {
    gen_geomproc_key(programInfo.geomProc(), caps, b);
 
    const GrPipeline& pipeline = programInfo.pipeline();
    b->addBits(2, pipeline.numFragmentProcessors(),      "numFPs");
    b->addBits(1, pipeline.numColorFragmentProcessors(), "numColorFPs");
    for (int i = 0; i < pipeline.numFragmentProcessors(); ++i) {
        gen_fp_key(pipeline.getFragmentProcessor(i), caps, b);
    }
 
    gen_xp_key(pipeline.getXferProcessor(), caps, pipeline, b);
 
    b->addBits(16, pipeline.writeSwizzle().asKey(), "writeSwizzle");
    b->addBool(pipeline.snapVerticesToPixelCenters(), "snapVertices");
    // The base descriptor only stores whether or not the primitiveType is kPoints. Backend-
    // specific versions (e.g., Vulkan) require more detail
    b->addBool((programInfo.primitiveType() == GrPrimitiveType::kPoints), "isPoints");
 
    // Put a clean break between the "common" data written by this function, and any backend data
    // appended later. The initial key length will just be this portion (rounded to 4 bytes).
    b->flush();
}

gen_xp_key()

static void gen_xp_key ( const GrXferProcessor &  xp, const GrCaps &  caps, const GrPipeline &  pipeline, skgpu::KeyBuilder *  b  )

static

Definition at line 97 of file GrProgramDesc.cpp.

                                           {
    b->appendComment(xp.name());
    b->addBits(kClassIDBits, xp.classID(), "xpClassID");
 
    const GrSurfaceOrigin* originIfDstTexture = nullptr;
    GrSurfaceOrigin origin;
    const GrSurfaceProxyView& dstView = pipeline.dstProxyView();
    if (dstView.proxy()) {
        origin = dstView.origin();
        originIfDstTexture = &origin;
 
        uint32_t samplerKey = sampler_key(dstView.proxy()->backendFormat().textureType(),
                                          dstView.swizzle(), caps);
        b->add32(samplerKey);
    }
 
    xp.addToKey(*caps.shaderCaps(),
                b,
                originIfDstTexture,
                pipeline.dstSampleFlags() & GrDstSampleFlags::kAsInputAttachment);
}

sampler_key()

static uint32_t sampler_key ( GrTextureType  textureType, const skgpu::Swizzle &  swizzle, const GrCaps &  caps  )

static

Definition at line 50 of file GrProgramDesc.cpp.

                                                {
    int samplerTypeKey = texture_type_key(textureType);
 
    static_assert(2 == sizeof(swizzle.asKey()));
    uint16_t swizzleKey = swizzle.asKey();
    return SkToU32(samplerTypeKey | swizzleKey << kSamplerOrImageTypeKeyBits);
}

texture_type_key()

static uint16_t texture_type_key ( GrTextureType  type )

inlinestatic

Definition at line 29 of file GrProgramDesc.cpp.

                                                            {
    int value = UINT16_MAX;
    switch (type) {
        case GrTextureType::k2D:
            value = 0;
            break;
        case GrTextureType::kExternal:
            value = 1;
            break;
        case GrTextureType::kRectangle:
            value = 2;
            break;
        default:
            SK_ABORT("Unexpected texture type");
            value = 3;
            break;
    }
    SkASSERT((value & ((1 << kSamplerOrImageTypeKeyBits) - 1)) == value);
    return SkToU16(value);
}

Variable Documentation

kClassIDBits

constexpr uint32_t kClassIDBits = 8

staticconstexpr

Definition at line 76 of file GrProgramDesc.cpp.