/src/skia/src/gpu/gl/GrGLUniformHandler.cpp

Source (jump to first uncovered line)
/*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/gpu/gl/GrGLUniformHandler.h"

#include "src/gpu/GrTexture.h"
#include "src/gpu/gl/GrGLCaps.h"
#include "src/gpu/gl/GrGLGpu.h"
#include "src/gpu/gl/builders/GrGLProgramBuilder.h"
#include "src/sksl/SkSLCompiler.h"

#define GL_CALL(X) GR_GL_CALL(this->glGpu()->glInterface(), X)
#define GL_CALL_RET(R, X) GR_GL_CALL_RET(this->glGpu()->glInterface(), R, X)

bool valid_name(const char* name) {
    // disallow unknown names that start with "sk_"
    if (!strncmp(name, GR_NO_MANGLE_PREFIX, strlen(GR_NO_MANGLE_PREFIX))) {
        return !strcmp(name, SkSL::Compiler::RTADJUST_NAME);
    }
    return true;
}

GrGLSLUniformHandler::UniformHandle GrGLUniformHandler::internalAddUniformArray(
                                                                   const GrFragmentProcessor* owner,
                                                                   uint32_t visibility,
                                                                   GrSLType type,
                                                                   const char* name,
                                                                   bool mangleName,
                                                                   int arrayCount,
                                                                   const char** outName) {
    SkASSERT(name && strlen(name));
    SkASSERT(valid_name(name));
    SkASSERT(0 != visibility);

    // TODO this is a bit hacky, lets think of a better way.  Basically we need to be able to use
    // the uniform view matrix name in the GP, and the GP is immutable so it has to tell the PB
    // exactly what name it wants to use for the uniform view matrix.  If we prefix anythings, then
    // the names will mismatch.  I think the correct solution is to have all GPs which need the
    // uniform view matrix, they should upload the view matrix in their setData along with regular
    // uniforms.
    char prefix = 'u';
    if ('u' == name[0] || !strncmp(name, GR_NO_MANGLE_PREFIX, strlen(GR_NO_MANGLE_PREFIX))) {
        prefix = '\0';
    }
    SkString resolvedName = fProgramBuilder->nameVariable(prefix, name, mangleName);
    GLUniformInfo& uni = fUniforms.push_back(GrGLProgramDataManager::GLUniformInfo{
        {
            GrShaderVar{std::move(resolvedName), type, GrShaderVar::TypeModifier::Uniform,
                        arrayCount},
            visibility, owner, SkString(name)
        },
        -1
    });

    if (outName) {
        *outName = uni.fVariable.c_str();
    }
    return GrGLSLUniformHandler::UniformHandle(fUniforms.count() - 1);
}

GrGLSLUniformHandler::SamplerHandle GrGLUniformHandler::addSampler(
        const GrBackendFormat& backendFormat, GrSamplerState, const GrSwizzle& swizzle,
        const char* name, const GrShaderCaps* shaderCaps) {
    SkASSERT(name && strlen(name));

    constexpr char prefix = 'u';
    SkString mangleName = fProgramBuilder->nameVariable(prefix, name, true);

    GrTextureType type = backendFormat.textureType();

    fSamplers.push_back(GrGLProgramDataManager::GLUniformInfo{
        {
            GrShaderVar{std::move(mangleName), GrSLCombinedSamplerTypeForTextureType(type),
                          GrShaderVar::TypeModifier::Uniform},
            kFragment_GrShaderFlag, nullptr, SkString(name)
        },
        -1
    });

    fSamplerSwizzles.push_back(swizzle);
    SkASSERT(fSamplers.count() == fSamplerSwizzles.count());
    return GrGLSLUniformHandler::SamplerHandle(fSamplers.count() - 1);
}

void GrGLUniformHandler::appendUniformDecls(GrShaderFlags visibility, SkString* out) const {
    for (const UniformInfo& uniform : fUniforms.items()) {
        if (uniform.fVisibility & visibility) {
            uniform.fVariable.appendDecl(fProgramBuilder->shaderCaps(), out);
            out->append(";");
        }
    }
    for (const UniformInfo& sampler : fSamplers.items()) {
        if (sampler.fVisibility & visibility) {
            sampler.fVariable.appendDecl(fProgramBuilder->shaderCaps(), out);
            out->append(";\n");
        }
    }
}

void GrGLUniformHandler::bindUniformLocations(GrGLuint programID, const GrGLCaps& caps) {
    if (caps.bindUniformLocationSupport()) {
        int currUniform = 0;
        for (GLUniformInfo& uniform : fUniforms.items()) {
            GL_CALL(BindUniformLocation(programID, currUniform, uniform.fVariable.c_str()));
            uniform.fLocation = currUniform;
            ++currUniform;
        }
        for (GLUniformInfo& sampler : fSamplers.items()) {
            GL_CALL(BindUniformLocation(programID, currUniform, sampler.fVariable.c_str()));
            sampler.fLocation = currUniform;
            ++currUniform;
        }
    }
}

void GrGLUniformHandler::getUniformLocations(GrGLuint programID, const GrGLCaps& caps, bool force) {
    if (!caps.bindUniformLocationSupport() || force) {
        for (GLUniformInfo& uniform : fUniforms.items()) {
            GrGLint location;
            GL_CALL_RET(location, GetUniformLocation(programID, uniform.fVariable.c_str()));
            uniform.fLocation = location;
        }
        for (GLUniformInfo& sampler : fSamplers.items()) {
            GrGLint location;
            GL_CALL_RET(location, GetUniformLocation(programID, sampler.fVariable.c_str()));
            sampler.fLocation = location;
        }
    }
}

const GrGLGpu* GrGLUniformHandler::glGpu() const {
    GrGLProgramBuilder* glPB = (GrGLProgramBuilder*) fProgramBuilder;
    return glPB->gpu();
}

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2015 Google Inc.
3		*
4		* Use of this source code is governed by a BSD-style license that can be
5		* found in the LICENSE file.
6		*/
7
8		#include "src/gpu/gl/GrGLUniformHandler.h"
9
10		#include "src/gpu/GrTexture.h"
11		#include "src/gpu/gl/GrGLCaps.h"
12		#include "src/gpu/gl/GrGLGpu.h"
13		#include "src/gpu/gl/builders/GrGLProgramBuilder.h"
14		#include "src/sksl/SkSLCompiler.h"
15
16	0	#define GL_CALL(X) GR_GL_CALL(this->glGpu()->glInterface(), X)
17	0	#define GL_CALL_RET(R, X) GR_GL_CALL_RET(this->glGpu()->glInterface(), R, X)
18
19	0	bool valid_name(const char* name) {
20		// disallow unknown names that start with "sk_"
21	0	if (!strncmp(name, GR_NO_MANGLE_PREFIX, strlen(GR_NO_MANGLE_PREFIX))) {
22	0	return !strcmp(name, SkSL::Compiler::RTADJUST_NAME);
23	0	}
24	0	return true;
25	0	}
26
27		GrGLSLUniformHandler::UniformHandle GrGLUniformHandler::internalAddUniformArray(
28		const GrFragmentProcessor* owner,
29		uint32_t visibility,
30		GrSLType type,
31		const char* name,
32		bool mangleName,
33		int arrayCount,
34	0	const char** outName) {
35	0	SkASSERT(name && strlen(name));
36	0	SkASSERT(valid_name(name));
37	0	SkASSERT(0 != visibility);
38
39		// TODO this is a bit hacky, lets think of a better way. Basically we need to be able to use
40		// the uniform view matrix name in the GP, and the GP is immutable so it has to tell the PB
41		// exactly what name it wants to use for the uniform view matrix. If we prefix anythings, then
42		// the names will mismatch. I think the correct solution is to have all GPs which need the
43		// uniform view matrix, they should upload the view matrix in their setData along with regular
44		// uniforms.
45	0	char prefix = 'u';
46	0	if ('u' == name[0] \|\| !strncmp(name, GR_NO_MANGLE_PREFIX, strlen(GR_NO_MANGLE_PREFIX))) {
47	0	prefix = '\0';
48	0	}
49	0	SkString resolvedName = fProgramBuilder->nameVariable(prefix, name, mangleName);
50	0	GLUniformInfo& uni = fUniforms.push_back(GrGLProgramDataManager::GLUniformInfo{
51	0	{
52	0	GrShaderVar{std::move(resolvedName), type, GrShaderVar::TypeModifier::Uniform,
53	0	arrayCount},
54	0	visibility, owner, SkString(name)
55	0	},
56	0	-1
57	0	});
58
59	0	if (outName) {
60	0	*outName = uni.fVariable.c_str();
61	0	}
62	0	return GrGLSLUniformHandler::UniformHandle(fUniforms.count() - 1);
63	0	} Unexecuted instantiation: GrGLUniformHandler::internalAddUniformArray(GrFragmentProcessor const, unsigned int, GrSLType, char const, bool, int, char const*) Unexecuted instantiation: GrGLUniformHandler::internalAddUniformArray(GrFragmentProcessor const, unsigned int, GrSLType, char const, bool, int, char const*)
64
65		GrGLSLUniformHandler::SamplerHandle GrGLUniformHandler::addSampler(
66		const GrBackendFormat& backendFormat, GrSamplerState, const GrSwizzle& swizzle,
67	0	const char* name, const GrShaderCaps* shaderCaps) {
68	0	SkASSERT(name && strlen(name));
69
70	0	constexpr char prefix = 'u';
71	0	SkString mangleName = fProgramBuilder->nameVariable(prefix, name, true);
72
73	0	GrTextureType type = backendFormat.textureType();
74
75	0	fSamplers.push_back(GrGLProgramDataManager::GLUniformInfo{
76	0	{
77	0	GrShaderVar{std::move(mangleName), GrSLCombinedSamplerTypeForTextureType(type),
78	0	GrShaderVar::TypeModifier::Uniform},
79	0	kFragment_GrShaderFlag, nullptr, SkString(name)
80	0	},
81	0	-1
82	0	});
83
84	0	fSamplerSwizzles.push_back(swizzle);
85	0	SkASSERT(fSamplers.count() == fSamplerSwizzles.count());
86	0	return GrGLSLUniformHandler::SamplerHandle(fSamplers.count() - 1);
87	0	} Unexecuted instantiation: GrGLUniformHandler::addSampler(GrBackendFormat const&, GrSamplerState, GrSwizzle const&, char const, GrShaderCaps const) Unexecuted instantiation: GrGLUniformHandler::addSampler(GrBackendFormat const&, GrSamplerState, GrSwizzle const&, char const, GrShaderCaps const)
88
89	0	void GrGLUniformHandler::appendUniformDecls(GrShaderFlags visibility, SkString* out) const {
90	0	for (const UniformInfo& uniform : fUniforms.items()) {
91	0	if (uniform.fVisibility & visibility) {
92	0	uniform.fVariable.appendDecl(fProgramBuilder->shaderCaps(), out);
93	0	out->append(";");
94	0	}
95	0	}
96	0	for (const UniformInfo& sampler : fSamplers.items()) {
97	0	if (sampler.fVisibility & visibility) {
98	0	sampler.fVariable.appendDecl(fProgramBuilder->shaderCaps(), out);
99	0	out->append(";\n");
100	0	}
101	0	}
102	0	}
103
104	0	void GrGLUniformHandler::bindUniformLocations(GrGLuint programID, const GrGLCaps& caps) {
105	0	if (caps.bindUniformLocationSupport()) {
106	0	int currUniform = 0;
107	0	for (GLUniformInfo& uniform : fUniforms.items()) {
108	0	GL_CALL(BindUniformLocation(programID, currUniform, uniform.fVariable.c_str()));
109	0	uniform.fLocation = currUniform;
110	0	++currUniform;
111	0	}
112	0	for (GLUniformInfo& sampler : fSamplers.items()) {
113	0	GL_CALL(BindUniformLocation(programID, currUniform, sampler.fVariable.c_str()));
114	0	sampler.fLocation = currUniform;
115	0	++currUniform;
116	0	}
117	0	}
118	0	} Unexecuted instantiation: GrGLUniformHandler::bindUniformLocations(unsigned int, GrGLCaps const&) Unexecuted instantiation: GrGLUniformHandler::bindUniformLocations(unsigned int, GrGLCaps const&)
119
120	0	void GrGLUniformHandler::getUniformLocations(GrGLuint programID, const GrGLCaps& caps, bool force) {
121	0	if (!caps.bindUniformLocationSupport() \|\| force) {
122	0	for (GLUniformInfo& uniform : fUniforms.items()) {
123	0	GrGLint location;
124	0	GL_CALL_RET(location, GetUniformLocation(programID, uniform.fVariable.c_str()));
125	0	uniform.fLocation = location;
126	0	}
127	0	for (GLUniformInfo& sampler : fSamplers.items()) {
128	0	GrGLint location;
129	0	GL_CALL_RET(location, GetUniformLocation(programID, sampler.fVariable.c_str()));
130	0	sampler.fLocation = location;
131	0	}
132	0	}
133	0	} Unexecuted instantiation: GrGLUniformHandler::getUniformLocations(unsigned int, GrGLCaps const&, bool) Unexecuted instantiation: GrGLUniformHandler::getUniformLocations(unsigned int, GrGLCaps const&, bool)
134
135	0	const GrGLGpu* GrGLUniformHandler::glGpu() const {
136	0	GrGLProgramBuilder* glPB = (GrGLProgramBuilder*) fProgramBuilder;
137	0	return glPB->gpu();
138	0	}

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Created: 2021-08-22 09:07