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      1 /*
      2  * Copyright (C) 2011 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef MockWebGraphicsContext3D_h
     27 #define MockWebGraphicsContext3D_h
     28 
     29 #include "platform/PlatformExport.h"
     30 #include "public/platform/WebGraphicsContext3D.h"
     31 
     32 namespace blink {
     33 
     34 // WebGraphicsContext3D base class for use in WebKit unit tests.
     35 // All operations are no-ops (returning 0 if necessary).
     36 class MockWebGraphicsContext3D : public WebGraphicsContext3D {
     37 public:
     38     MockWebGraphicsContext3D()
     39         : m_nextTextureId(1)
     40         , m_contextLost(false)
     41     {
     42     }
     43 
     44     virtual void prepareTexture() { }
     45 
     46     virtual void postSubBufferCHROMIUM(int x, int y, int width, int height) { }
     47 
     48     virtual void synthesizeGLError(WGC3Denum) { }
     49 
     50     virtual bool isContextLost() { return m_contextLost; }
     51 
     52     virtual void* mapBufferSubDataCHROMIUM(WGC3Denum target, WGC3Dintptr offset, WGC3Dsizeiptr size, WGC3Denum access) { return 0; }
     53     virtual void unmapBufferSubDataCHROMIUM(const void*) { }
     54     virtual void* mapTexSubImage2DCHROMIUM(WGC3Denum target, WGC3Dint level, WGC3Dint xoffset, WGC3Dint yoffset, WGC3Dsizei width, WGC3Dsizei height, WGC3Denum format, WGC3Denum type, WGC3Denum access) { return 0; }
     55     virtual void unmapTexSubImage2DCHROMIUM(const void*) { }
     56 
     57     virtual void setVisibilityCHROMIUM(bool visible) { }
     58 
     59     virtual void discardFramebufferEXT(WGC3Denum target, WGC3Dsizei numAttachments, const WGC3Denum* attachments) { }
     60     virtual void ensureFramebufferCHROMIUM() { }
     61 
     62     virtual WebString getRequestableExtensionsCHROMIUM() { return WebString(); }
     63     virtual void requestExtensionCHROMIUM(const char*) { }
     64 
     65     virtual void blitFramebufferCHROMIUM(WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1, WGC3Dint dstX0, WGC3Dint dstY0, WGC3Dint dstX1, WGC3Dint dstY1, WGC3Dbitfield mask, WGC3Denum filter) { }
     66     virtual void renderbufferStorageMultisampleCHROMIUM(WGC3Denum target, WGC3Dsizei samples, WGC3Denum internalformat, WGC3Dsizei width, WGC3Dsizei height) { }
     67 
     68     virtual void activeTexture(WGC3Denum texture) { }
     69     virtual void attachShader(WebGLId program, WebGLId shader) { }
     70     virtual void bindAttribLocation(WebGLId program, WGC3Duint index, const WGC3Dchar* name) { }
     71     virtual void bindBuffer(WGC3Denum target, WebGLId buffer) { }
     72     virtual void bindFramebuffer(WGC3Denum target, WebGLId framebuffer) { }
     73     virtual void bindRenderbuffer(WGC3Denum target, WebGLId renderbuffer) { }
     74     virtual void bindTexture(WGC3Denum target, WebGLId texture) { }
     75     virtual void blendColor(WGC3Dclampf red, WGC3Dclampf green, WGC3Dclampf blue, WGC3Dclampf alpha) { }
     76     virtual void blendEquation(WGC3Denum mode) { }
     77     virtual void blendEquationSeparate(WGC3Denum modeRGB, WGC3Denum modeAlpha) { }
     78     virtual void blendFunc(WGC3Denum sfactor, WGC3Denum dfactor) { }
     79     virtual void blendFuncSeparate(WGC3Denum srcRGB, WGC3Denum dstRGB, WGC3Denum srcAlpha, WGC3Denum dstAlpha) { }
     80 
     81     virtual void bufferData(WGC3Denum target, WGC3Dsizeiptr size, const void* data, WGC3Denum usage) { }
     82     virtual void bufferSubData(WGC3Denum target, WGC3Dintptr offset, WGC3Dsizeiptr size, const void* data) { }
     83 
     84     virtual WGC3Denum checkFramebufferStatus(WGC3Denum target)
     85     {
     86         return GL_FRAMEBUFFER_COMPLETE;
     87     }
     88 
     89     virtual void clear(WGC3Dbitfield mask) { }
     90     virtual void clearColor(WGC3Dclampf red, WGC3Dclampf green, WGC3Dclampf blue, WGC3Dclampf alpha) { }
     91     virtual void clearDepth(WGC3Dclampf depth) { }
     92     virtual void clearStencil(WGC3Dint s) { }
     93     virtual void colorMask(WGC3Dboolean red, WGC3Dboolean green, WGC3Dboolean blue, WGC3Dboolean alpha) { }
     94     virtual void compileShader(WebGLId shader) { }
     95 
     96     virtual void compressedTexImage2D(WGC3Denum target, WGC3Dint level, WGC3Denum internalformat, WGC3Dsizei width, WGC3Dsizei height, WGC3Dint border, WGC3Dsizei imageSize, const void* data) { }
     97     virtual void compressedTexSubImage2D(WGC3Denum target, WGC3Dint level, WGC3Dint xoffset, WGC3Dint yoffset, WGC3Dsizei width, WGC3Dsizei height, WGC3Denum format, WGC3Dsizei imageSize, const void* data) { }
     98     virtual void copyTexImage2D(WGC3Denum target, WGC3Dint level, WGC3Denum internalformat, WGC3Dint x, WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height, WGC3Dint border) { }
     99     virtual void copyTexSubImage2D(WGC3Denum target, WGC3Dint level, WGC3Dint xoffset, WGC3Dint yoffset, WGC3Dint x, WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height) { }
    100     virtual void cullFace(WGC3Denum mode) { }
    101     virtual void depthFunc(WGC3Denum func) { }
    102     virtual void depthMask(WGC3Dboolean flag) { }
    103     virtual void depthRange(WGC3Dclampf zNear, WGC3Dclampf zFar) { }
    104     virtual void detachShader(WebGLId program, WebGLId shader) { }
    105     virtual void disable(WGC3Denum cap) { }
    106     virtual void disableVertexAttribArray(WGC3Duint index) { }
    107     virtual void drawArrays(WGC3Denum mode, WGC3Dint first, WGC3Dsizei count) { }
    108     virtual void drawElements(WGC3Denum mode, WGC3Dsizei count, WGC3Denum type, WGC3Dintptr offset) { }
    109 
    110     virtual void enable(WGC3Denum cap) { }
    111     virtual void enableVertexAttribArray(WGC3Duint index) { }
    112     virtual void finish() { }
    113     virtual void flush() { }
    114     virtual void framebufferRenderbuffer(WGC3Denum target, WGC3Denum attachment, WGC3Denum renderbuffertarget, WebGLId renderbuffer) { }
    115     virtual void framebufferTexture2D(WGC3Denum target, WGC3Denum attachment, WGC3Denum textarget, WebGLId texture, WGC3Dint level) { }
    116     virtual void frontFace(WGC3Denum mode) { }
    117     virtual void generateMipmap(WGC3Denum target) { }
    118 
    119     virtual bool getActiveAttrib(WebGLId program, WGC3Duint index, ActiveInfo&) { return false; }
    120     virtual bool getActiveUniform(WebGLId program, WGC3Duint index, ActiveInfo&) { return false; }
    121     virtual void getAttachedShaders(WebGLId program, WGC3Dsizei maxCount, WGC3Dsizei* count, WebGLId* shaders) { }
    122     virtual WGC3Dint getAttribLocation(WebGLId program, const WGC3Dchar* name) { return 0; }
    123     virtual void getBooleanv(WGC3Denum pname, WGC3Dboolean* value) { }
    124     virtual void getBufferParameteriv(WGC3Denum target, WGC3Denum pname, WGC3Dint* value) { }
    125     virtual Attributes getContextAttributes() { return m_attrs; }
    126     virtual WGC3Denum getError() { return 0; }
    127     virtual void getFloatv(WGC3Denum pname, WGC3Dfloat* value) { }
    128     virtual void getFramebufferAttachmentParameteriv(WGC3Denum target, WGC3Denum attachment, WGC3Denum pname, WGC3Dint* value) { }
    129 
    130     virtual void getIntegerv(WGC3Denum pname, WGC3Dint* value)
    131     {
    132         if (pname == GL_MAX_TEXTURE_SIZE)
    133             *value = 1024;
    134     }
    135 
    136     virtual void getProgramiv(WebGLId program, WGC3Denum pname, WGC3Dint* value)
    137     {
    138         if (pname == GL_LINK_STATUS)
    139             *value = 1;
    140     }
    141 
    142     virtual WebString getProgramInfoLog(WebGLId program) { return WebString(); }
    143     virtual void getRenderbufferParameteriv(WGC3Denum target, WGC3Denum pname, WGC3Dint* value) { }
    144 
    145     virtual void getShaderiv(WebGLId shader, WGC3Denum pname, WGC3Dint* value)
    146     {
    147         if (pname == GL_COMPILE_STATUS)
    148             *value = 1;
    149     }
    150 
    151     virtual WebString getShaderInfoLog(WebGLId shader) { return WebString(); }
    152     virtual void getShaderPrecisionFormat(WGC3Denum shadertype, WGC3Denum precisiontype, WGC3Dint* range, WGC3Dint* precision) { }
    153     virtual WebString getShaderSource(WebGLId shader) { return WebString(); }
    154     virtual WebString getString(WGC3Denum name) { return WebString(); }
    155     virtual void getTexParameterfv(WGC3Denum target, WGC3Denum pname, WGC3Dfloat* value) { }
    156     virtual void getTexParameteriv(WGC3Denum target, WGC3Denum pname, WGC3Dint* value) { }
    157     virtual void getUniformfv(WebGLId program, WGC3Dint location, WGC3Dfloat* value) { }
    158     virtual void getUniformiv(WebGLId program, WGC3Dint location, WGC3Dint* value) { }
    159     virtual WGC3Dint getUniformLocation(WebGLId program, const WGC3Dchar* name) { return 0; }
    160     virtual void getVertexAttribfv(WGC3Duint index, WGC3Denum pname, WGC3Dfloat* value) { }
    161     virtual void getVertexAttribiv(WGC3Duint index, WGC3Denum pname, WGC3Dint* value) { }
    162     virtual WGC3Dsizeiptr getVertexAttribOffset(WGC3Duint index, WGC3Denum pname) { return 0; }
    163 
    164     virtual void hint(WGC3Denum target, WGC3Denum mode) { }
    165     virtual WGC3Dboolean isBuffer(WebGLId buffer) { return false; }
    166     virtual WGC3Dboolean isEnabled(WGC3Denum cap) { return false; }
    167     virtual WGC3Dboolean isFramebuffer(WebGLId framebuffer) { return false; }
    168     virtual WGC3Dboolean isProgram(WebGLId program) { return false; }
    169     virtual WGC3Dboolean isRenderbuffer(WebGLId renderbuffer) { return false; }
    170     virtual WGC3Dboolean isShader(WebGLId shader) { return false; }
    171     virtual WGC3Dboolean isTexture(WebGLId texture) { return false; }
    172     virtual void lineWidth(WGC3Dfloat) { }
    173     virtual void linkProgram(WebGLId program) { }
    174     virtual void pixelStorei(WGC3Denum pname, WGC3Dint param) { }
    175     virtual void polygonOffset(WGC3Dfloat factor, WGC3Dfloat units) { }
    176 
    177     virtual void readPixels(WGC3Dint x, WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height, WGC3Denum format, WGC3Denum type, void* pixels) { }
    178 
    179     virtual void releaseShaderCompiler() { }
    180 
    181     virtual void renderbufferStorage(WGC3Denum target, WGC3Denum internalformat, WGC3Dsizei width, WGC3Dsizei height) { }
    182     virtual void sampleCoverage(WGC3Dclampf value, WGC3Dboolean invert) { }
    183     virtual void scissor(WGC3Dint x, WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height) { }
    184     virtual void shaderSource(WebGLId shader, const WGC3Dchar* string) { }
    185     virtual void stencilFunc(WGC3Denum func, WGC3Dint ref, WGC3Duint mask) { }
    186     virtual void stencilFuncSeparate(WGC3Denum face, WGC3Denum func, WGC3Dint ref, WGC3Duint mask) { }
    187     virtual void stencilMask(WGC3Duint mask) { }
    188     virtual void stencilMaskSeparate(WGC3Denum face, WGC3Duint mask) { }
    189     virtual void stencilOp(WGC3Denum fail, WGC3Denum zfail, WGC3Denum zpass) { }
    190     virtual void stencilOpSeparate(WGC3Denum face, WGC3Denum fail, WGC3Denum zfail, WGC3Denum zpass) { }
    191 
    192     virtual void texImage2D(WGC3Denum target, WGC3Dint level, WGC3Denum internalformat, WGC3Dsizei width, WGC3Dsizei height, WGC3Dint border, WGC3Denum format, WGC3Denum type, const void* pixels) { }
    193 
    194     virtual void texParameterf(WGC3Denum target, WGC3Denum pname, WGC3Dfloat param) { }
    195     virtual void texParameteri(WGC3Denum target, WGC3Denum pname, WGC3Dint param) { }
    196 
    197     virtual void texSubImage2D(WGC3Denum target, WGC3Dint level, WGC3Dint xoffset, WGC3Dint yoffset, WGC3Dsizei width, WGC3Dsizei height, WGC3Denum format, WGC3Denum type, const void* pixels) { }
    198 
    199     virtual void uniform1f(WGC3Dint location, WGC3Dfloat x) { }
    200     virtual void uniform1fv(WGC3Dint location, WGC3Dsizei count, const WGC3Dfloat* v) { }
    201     virtual void uniform1i(WGC3Dint location, WGC3Dint x) { }
    202     virtual void uniform1iv(WGC3Dint location, WGC3Dsizei count, const WGC3Dint* v) { }
    203     virtual void uniform2f(WGC3Dint location, WGC3Dfloat x, WGC3Dfloat y) { }
    204     virtual void uniform2fv(WGC3Dint location, WGC3Dsizei count, const WGC3Dfloat* v) { }
    205     virtual void uniform2i(WGC3Dint location, WGC3Dint x, WGC3Dint y) { }
    206     virtual void uniform2iv(WGC3Dint location, WGC3Dsizei count, const WGC3Dint* v) { }
    207     virtual void uniform3f(WGC3Dint location, WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z) { }
    208     virtual void uniform3fv(WGC3Dint location, WGC3Dsizei count, const WGC3Dfloat* v) { }
    209     virtual void uniform3i(WGC3Dint location, WGC3Dint x, WGC3Dint y, WGC3Dint z) { }
    210     virtual void uniform3iv(WGC3Dint location, WGC3Dsizei count, const WGC3Dint* v) { }
    211     virtual void uniform4f(WGC3Dint location, WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z, WGC3Dfloat w) { }
    212     virtual void uniform4fv(WGC3Dint location, WGC3Dsizei count, const WGC3Dfloat* v) { }
    213     virtual void uniform4i(WGC3Dint location, WGC3Dint x, WGC3Dint y, WGC3Dint z, WGC3Dint w) { }
    214     virtual void uniform4iv(WGC3Dint location, WGC3Dsizei count, const WGC3Dint* v) { }
    215     virtual void uniformMatrix2fv(WGC3Dint location, WGC3Dsizei count, WGC3Dboolean transpose, const WGC3Dfloat* value) { }
    216     virtual void uniformMatrix3fv(WGC3Dint location, WGC3Dsizei count, WGC3Dboolean transpose, const WGC3Dfloat* value) { }
    217     virtual void uniformMatrix4fv(WGC3Dint location, WGC3Dsizei count, WGC3Dboolean transpose, const WGC3Dfloat* value) { }
    218 
    219     virtual void useProgram(WebGLId program) { }
    220     virtual void validateProgram(WebGLId program) { }
    221 
    222     virtual void vertexAttrib1f(WGC3Duint index, WGC3Dfloat x) { }
    223     virtual void vertexAttrib1fv(WGC3Duint index, const WGC3Dfloat* values) { }
    224     virtual void vertexAttrib2f(WGC3Duint index, WGC3Dfloat x, WGC3Dfloat y) { }
    225     virtual void vertexAttrib2fv(WGC3Duint index, const WGC3Dfloat* values) { }
    226     virtual void vertexAttrib3f(WGC3Duint index, WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z) { }
    227     virtual void vertexAttrib3fv(WGC3Duint index, const WGC3Dfloat* values) { }
    228     virtual void vertexAttrib4f(WGC3Duint index, WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z, WGC3Dfloat w) { }
    229     virtual void vertexAttrib4fv(WGC3Duint index, const WGC3Dfloat* values) { }
    230     virtual void vertexAttribPointer(WGC3Duint index, WGC3Dint size, WGC3Denum type, WGC3Dboolean normalized, WGC3Dsizei stride, WGC3Dintptr offset) { }
    231 
    232     virtual void viewport(WGC3Dint x, WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height) { }
    233 
    234     virtual void genBuffers(WGC3Dsizei count, WebGLId* ids)
    235     {
    236         for (int i = 0; i < count; ++i)
    237             ids[i] = 1;
    238     }
    239     virtual void genFramebuffers(WGC3Dsizei count, WebGLId* ids)
    240     {
    241         for (int i = 0; i < count; ++i)
    242             ids[i] = 1;
    243     }
    244     virtual void genRenderbuffers(WGC3Dsizei count, WebGLId* ids)
    245     {
    246         for (int i = 0; i < count; ++i)
    247             ids[i] = 1;
    248     }
    249     virtual void genTextures(WGC3Dsizei count, WebGLId* ids)
    250     {
    251         for (int i = 0; i < count; ++i)
    252             ids[i] = m_nextTextureId++;
    253     }
    254 
    255     virtual void deleteBuffers(WGC3Dsizei count, WebGLId* ids) { }
    256     virtual void deleteFramebuffers(WGC3Dsizei count, WebGLId* ids) { }
    257     virtual void deleteRenderbuffers(WGC3Dsizei count, WebGLId* ids) { }
    258     virtual void deleteTextures(WGC3Dsizei count, WebGLId* ids) { }
    259 
    260     virtual WebGLId createBuffer() { return 1; }
    261     virtual WebGLId createFramebuffer() { return 1; }
    262     virtual WebGLId createRenderbuffer() { return 1; }
    263     virtual WebGLId createTexture() { return m_nextTextureId++; }
    264 
    265     virtual void deleteBuffer(WebGLId) { }
    266     virtual void deleteFramebuffer(WebGLId) { }
    267     virtual void deleteRenderbuffer(WebGLId) { }
    268     virtual void deleteTexture(WebGLId) { }
    269 
    270     virtual WebGLId createProgram() { return 1; }
    271     virtual WebGLId createShader(WGC3Denum) { return 1; }
    272 
    273     virtual void deleteProgram(WebGLId) { }
    274     virtual void deleteShader(WebGLId) { }
    275 
    276     virtual void texStorage2DEXT(WGC3Denum target, WGC3Dint levels, WGC3Duint internalformat, WGC3Dint width, WGC3Dint height) { }
    277 
    278     virtual WebGLId createQueryEXT() { return 1; }
    279     virtual void deleteQueryEXT(WebGLId) { }
    280     virtual GLboolean isQueryEXT(WebGLId) { return true; }
    281     virtual void beginQueryEXT(GLenum, WebGLId) { }
    282     virtual void endQueryEXT(GLenum) { }
    283     virtual void getQueryivEXT(GLenum, GLenum, GLint*) { }
    284     virtual void getQueryObjectuivEXT(WebGLId, GLenum, GLuint*) { }
    285 
    286     virtual WebString getTranslatedShaderSourceANGLE(WebGLId) { return WebString(); }
    287 
    288     void fakeContextLost() { m_contextLost = true; }
    289 protected:
    290     unsigned m_nextTextureId;
    291     bool m_contextLost;
    292     Attributes m_attrs;
    293 };
    294 
    295 } // namespace blink
    296 
    297 #endif // MockWebGraphicsContext3D_h
    298