gecko-dev/gfx/gl/SkiaGLGlue.cpp

914 lines
31 KiB
C++
Executable File

/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "skia/include/gpu/GrContext.h"
#include "skia/include/gpu/gl/GrGLInterface.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/ThreadLocal.h"
#include "mozilla/DebugOnly.h"
/* SkPostConfig.h includes windows.h, which includes windef.h
* which redefines min/max. We don't want that. */
#ifdef _WIN32
#undef min
#undef max
#endif
#include "GLContext.h"
#include "SkiaGLGlue.h"
using mozilla::gl::GLContext;
using mozilla::gl::GLFeature;
using mozilla::gl::SkiaGLGlue;
using mozilla::gfx::DrawTarget;
static mozilla::ThreadLocal<GLContext*> sGLContext;
extern "C" {
static void SetStaticGLContext(GLContext* context)
{
if (!sGLContext.initialized()) {
mozilla::DebugOnly<bool> success = sGLContext.init();
MOZ_ASSERT(success);
}
sGLContext.set(context);
}
void EnsureGLContext(const GrGLInterface* i)
{
const SkiaGLGlue* contextSkia = reinterpret_cast<const SkiaGLGlue*>(i->fCallbackData);
MOZ_ASSERT(contextSkia);
GLContext* gl = contextSkia->GetGLContext();
gl->MakeCurrent();
SetStaticGLContext(gl);
}
// Core GL functions required by Ganesh
GrGLvoid glActiveTexture_mozilla(GrGLenum texture)
{
return sGLContext.get()->fActiveTexture(texture);
}
GrGLvoid glAttachShader_mozilla(GrGLuint program, GrGLuint shader)
{
return sGLContext.get()->fAttachShader(program, shader);
}
GrGLvoid glBindAttribLocation_mozilla(GrGLuint program, GrGLuint index, const GLchar* name)
{
return sGLContext.get()->fBindAttribLocation(program, index, name);
}
GrGLvoid glBindBuffer_mozilla(GrGLenum target, GrGLuint buffer)
{
return sGLContext.get()->fBindBuffer(target, buffer);
}
GrGLvoid glBindFramebuffer_mozilla(GrGLenum target, GrGLuint framebuffer)
{
return sGLContext.get()->fBindFramebuffer(target, framebuffer);
}
GrGLvoid glBindRenderbuffer_mozilla(GrGLenum target, GrGLuint renderbuffer)
{
return sGLContext.get()->fBindRenderbuffer(target, renderbuffer);
}
GrGLvoid glBindTexture_mozilla(GrGLenum target, GrGLuint texture)
{
return sGLContext.get()->fBindTexture(target, texture);
}
GrGLvoid glBlendColor_mozilla(GrGLclampf red, GrGLclampf green, GrGLclampf blue, GrGLclampf alpha)
{
return sGLContext.get()->fBlendColor(red, green, blue, alpha);
}
GrGLvoid glBlendFunc_mozilla(GrGLenum sfactor, GrGLenum dfactor)
{
return sGLContext.get()->fBlendFunc(sfactor, dfactor);
}
GrGLvoid glBufferData_mozilla(GrGLenum target, GrGLsizeiptr size, const void* data, GrGLenum usage)
{
return sGLContext.get()->fBufferData(target, size, data, usage);
}
GrGLvoid glBufferSubData_mozilla(GrGLenum target, GrGLintptr offset, GrGLsizeiptr size, const void* data)
{
return sGLContext.get()->fBufferSubData(target, offset, size, data);
}
GrGLenum glCheckFramebufferStatus_mozilla(GrGLenum target)
{
return sGLContext.get()->fCheckFramebufferStatus(target);
}
GrGLvoid glClear_mozilla(GrGLbitfield mask)
{
return sGLContext.get()->fClear(mask);
}
GrGLvoid glClearColor_mozilla(GrGLclampf red, GrGLclampf green, GrGLclampf blue, GrGLclampf alpha)
{
return sGLContext.get()->fClearColor(red, green, blue, alpha);
}
GrGLvoid glClearStencil_mozilla(GrGLint s)
{
return sGLContext.get()->fClearStencil(s);
}
GrGLvoid glColorMask_mozilla(GrGLboolean red, GrGLboolean green, GrGLboolean blue, GrGLboolean alpha)
{
return sGLContext.get()->fColorMask(red, green, blue, alpha);
}
GrGLvoid glCompileShader_mozilla(GrGLuint shader)
{
return sGLContext.get()->fCompileShader(shader);
}
GrGLvoid glCopyTexSubImage2D_mozilla(GrGLenum target, GrGLint level, GrGLint xoffset, GrGLint yoffset,
GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height)
{
return sGLContext.get()->fCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
}
GrGLuint glCreateProgram_mozilla(void)
{
return sGLContext.get()->fCreateProgram();
}
GrGLuint glCreateShader_mozilla(GrGLenum type)
{
return sGLContext.get()->fCreateShader(type);
}
GrGLvoid glCullFace_mozilla(GrGLenum mode)
{
return sGLContext.get()->fCullFace(mode);
}
GrGLvoid glDeleteBuffers_mozilla(GrGLsizei n, const GrGLuint* buffers)
{
return sGLContext.get()->fDeleteBuffers(n, buffers);
}
GrGLvoid glDeleteFramebuffers_mozilla(GrGLsizei n, const GrGLuint* framebuffers)
{
return sGLContext.get()->fDeleteFramebuffers(n, framebuffers);
}
GrGLvoid glDeleteProgram_mozilla(GrGLuint program)
{
return sGLContext.get()->fDeleteProgram(program);
}
GrGLvoid glDeleteRenderbuffers_mozilla(GrGLsizei n, const GrGLuint* renderbuffers)
{
return sGLContext.get()->fDeleteRenderbuffers(n, renderbuffers);
}
GrGLvoid glDeleteShader_mozilla(GrGLuint shader)
{
return sGLContext.get()->fDeleteShader(shader);
}
GrGLvoid glDeleteTextures_mozilla(GrGLsizei n, const GrGLuint* textures)
{
return sGLContext.get()->fDeleteTextures(n, textures);
}
GrGLvoid glDepthMask_mozilla(GrGLboolean flag)
{
return sGLContext.get()->fDepthMask(flag);
}
GrGLvoid glDisable_mozilla(GrGLenum cap)
{
return sGLContext.get()->fDisable(cap);
}
GrGLvoid glDisableVertexAttribArray_mozilla(GrGLuint index)
{
return sGLContext.get()->fDisableVertexAttribArray(index);
}
GrGLvoid glDrawArrays_mozilla(GrGLenum mode, GrGLint first, GrGLsizei count)
{
return sGLContext.get()->fDrawArrays(mode, first, count);
}
GrGLvoid glDrawElements_mozilla(GrGLenum mode, GrGLsizei count, GrGLenum type, const void* indices)
{
return sGLContext.get()->fDrawElements(mode, count, type, indices);
}
GrGLvoid glEnable_mozilla(GrGLenum cap)
{
return sGLContext.get()->fEnable(cap);
}
GrGLvoid glEnableVertexAttribArray_mozilla(GrGLuint index)
{
return sGLContext.get()->fEnableVertexAttribArray(index);
}
GrGLvoid glFinish_mozilla()
{
return sGLContext.get()->fFinish();
}
GrGLvoid glFlush_mozilla()
{
return sGLContext.get()->fFlush();
}
GrGLvoid glFramebufferRenderbuffer_mozilla(GrGLenum target, GrGLenum attachment, GrGLenum renderbuffertarget, GrGLuint renderbuffer)
{
return sGLContext.get()->fFramebufferRenderbuffer(target, attachment, renderbuffertarget, renderbuffer);
}
GrGLvoid glFramebufferTexture2D_mozilla(GrGLenum target, GrGLenum attachment, GrGLenum textarget, GrGLuint texture, GrGLint level)
{
return sGLContext.get()->fFramebufferTexture2D(target, attachment, textarget, texture, level);
}
GrGLvoid glFrontFace_mozilla(GrGLenum mode)
{
return sGLContext.get()->fFrontFace(mode);
}
GrGLvoid glGenBuffers_mozilla(GrGLsizei n, GrGLuint* buffers)
{
return sGLContext.get()->fGenBuffers(n, buffers);
}
GrGLvoid glGenFramebuffers_mozilla(GrGLsizei n, GrGLuint* framebuffers)
{
return sGLContext.get()->fGenFramebuffers(n, framebuffers);
}
GrGLvoid glGenRenderbuffers_mozilla(GrGLsizei n, GrGLuint* renderbuffers)
{
return sGLContext.get()->fGenRenderbuffers(n, renderbuffers);
}
GrGLvoid glGenTextures_mozilla(GrGLsizei n, GrGLuint* textures)
{
return sGLContext.get()->fGenTextures(n, textures);
}
GrGLvoid glGenerateMipmap_mozilla(GrGLenum target)
{
return sGLContext.get()->fGenerateMipmap(target);
}
GrGLvoid glGetBufferParameteriv_mozilla(GrGLenum target, GrGLenum pname, GrGLint* params)
{
return sGLContext.get()->fGetBufferParameteriv(target, pname, params);
}
GrGLvoid glGetFramebufferAttachmentParameteriv_mozilla(GrGLenum target, GrGLenum attachment, GrGLenum pname, GrGLint* params)
{
return sGLContext.get()->fGetFramebufferAttachmentParameteriv(target, attachment, pname, params);
}
GrGLenum glGetError_mozilla()
{
return sGLContext.get()->fGetError();
}
GrGLvoid glGetIntegerv_mozilla(GrGLenum pname, GrGLint* params)
{
return sGLContext.get()->fGetIntegerv(pname, params);
}
GrGLvoid glGetProgramInfoLog_mozilla(GrGLuint program, GrGLsizei bufsize, GrGLsizei* length, char* infolog)
{
return sGLContext.get()->fGetProgramInfoLog(program, bufsize, length, infolog);
}
GrGLvoid glGetProgramiv_mozilla(GrGLuint program, GrGLenum pname, GrGLint* params)
{
return sGLContext.get()->fGetProgramiv(program, pname, params);
}
GrGLvoid glGetRenderbufferParameteriv_mozilla(GrGLenum target, GrGLenum pname, GrGLint* params)
{
return sGLContext.get()->fGetRenderbufferParameteriv(target, pname, params);
}
GrGLvoid glGetShaderInfoLog_mozilla(GrGLuint shader, GrGLsizei bufsize, GrGLsizei* length, char* infolog)
{
return sGLContext.get()->fGetShaderInfoLog(shader, bufsize, length, infolog);
}
GrGLvoid glGetShaderiv_mozilla(GrGLuint shader, GrGLenum pname, GrGLint* params)
{
return sGLContext.get()->fGetShaderiv(shader, pname, params);
}
const GLubyte* glGetString_mozilla(GrGLenum name)
{
// GLContext only exposes a OpenGL 2.0 style API, so we have to intercept a bunch
// of checks that Ganesh makes to determine which capabilities are present
// on the GL implementation and change them to match what GLContext actually exposes.
if (name == LOCAL_GL_VERSION) {
if (sGLContext.get()->IsGLES()) {
return reinterpret_cast<const GLubyte*>("OpenGL ES 2.0");
} else {
return reinterpret_cast<const GLubyte*>("2.0");
}
} else if (name == LOCAL_GL_EXTENSIONS) {
// Only expose the bare minimum extensions we want to support to ensure a functional Ganesh
// as GLContext only exposes certain extensions
static bool extensionsStringBuilt = false;
static char extensionsString[1024];
if (!extensionsStringBuilt) {
extensionsString[0] = '\0';
if (sGLContext.get()->IsGLES()) {
// OES is only applicable to GLES2
if (sGLContext.get()->IsExtensionSupported(GLContext::OES_packed_depth_stencil)) {
strcat(extensionsString, "GL_OES_packed_depth_stencil ");
}
if (sGLContext.get()->IsExtensionSupported(GLContext::OES_rgb8_rgba8)) {
strcat(extensionsString, "GL_OES_rgb8_rgba8 ");
}
if (sGLContext.get()->IsExtensionSupported(GLContext::OES_texture_npot)) {
strcat(extensionsString, "GL_OES_texture_npot ");
}
if (sGLContext.get()->IsExtensionSupported(GLContext::OES_vertex_array_object)) {
strcat(extensionsString, "GL_OES_vertex_array_object ");
}
if (sGLContext.get()->IsSupported(GLFeature::standard_derivatives)) {
strcat(extensionsString, "GL_OES_standard_derivatives ");
}
}
if (sGLContext.get()->IsExtensionSupported(GLContext::EXT_texture_format_BGRA8888)) {
strcat(extensionsString, "GL_EXT_texture_format_BGRA8888 ");
}
if (sGLContext.get()->IsExtensionSupported(GLContext::EXT_packed_depth_stencil)) {
strcat(extensionsString, "GL_EXT_packed_depth_stencil ");
}
if (sGLContext.get()->IsExtensionSupported(GLContext::EXT_bgra)) {
strcat(extensionsString, "GL_EXT_bgra ");
}
if (sGLContext.get()->IsExtensionSupported(GLContext::EXT_read_format_bgra)) {
strcat(extensionsString, "GL_EXT_read_format_bgra ");
}
extensionsStringBuilt = true;
#ifdef DEBUG
printf_stderr("Exported SkiaGL extensions: %s\n", extensionsString);
#endif
}
return reinterpret_cast<const GLubyte*>(extensionsString);
} else if (name == LOCAL_GL_SHADING_LANGUAGE_VERSION) {
if (sGLContext.get()->IsGLES()) {
return reinterpret_cast<const GLubyte*>("OpenGL ES GLSL ES 1.0");
} else {
return reinterpret_cast<const GLubyte*>("1.10");
}
}
return sGLContext.get()->fGetString(name);
}
GrGLint glGetUniformLocation_mozilla(GrGLuint program, const char* name)
{
return sGLContext.get()->fGetUniformLocation(program, name);
}
GrGLvoid glLineWidth_mozilla(GrGLfloat width)
{
return sGLContext.get()->fLineWidth(width);
}
GrGLvoid glLinkProgram_mozilla(GrGLuint program)
{
return sGLContext.get()->fLinkProgram(program);
}
GrGLvoid glPixelStorei_mozilla(GrGLenum pname, GrGLint param)
{
return sGLContext.get()->fPixelStorei(pname, param);
}
GrGLvoid glReadPixels_mozilla(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height,
GrGLenum format, GrGLenum type, void* pixels)
{
return sGLContext.get()->fReadPixels(x, y, width, height,
format, type, pixels);
}
GrGLvoid glRenderbufferStorage_mozilla(GrGLenum target, GrGLenum internalformat, GrGLsizei width, GrGLsizei height)
{
return sGLContext.get()->fRenderbufferStorage(target, internalformat, width, height);
}
GrGLvoid glScissor_mozilla(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height)
{
return sGLContext.get()->fScissor(x, y, width, height);
}
GrGLvoid glShaderSource_mozilla(GrGLuint shader, GrGLsizei count, const char** str, const GrGLint* length)
{
return sGLContext.get()->fShaderSource(shader, count, str, length);
}
GrGLvoid glStencilFunc_mozilla(GrGLenum func, GrGLint ref, GrGLuint mask)
{
return sGLContext.get()->fStencilFunc(func, ref, mask);
}
GrGLvoid glStencilMask_mozilla(GrGLuint mask)
{
return sGLContext.get()->fStencilMask(mask);
}
GrGLvoid glStencilOp_mozilla(GrGLenum fail, GrGLenum zfail, GrGLenum zpass)
{
return sGLContext.get()->fStencilOp(fail, zfail, zpass);
}
GrGLvoid glTexImage2D_mozilla(GrGLenum target, GrGLint level, GrGLint internalformat,
GrGLsizei width, GrGLsizei height, GrGLint border,
GrGLenum format, GrGLenum type, const void* pixels)
{
return sGLContext.get()->fTexImage2D(target, level, internalformat,
width, height, border,
format, type, pixels);
}
GrGLvoid glTexParameteri_mozilla(GrGLenum target, GrGLenum pname, GrGLint param)
{
return sGLContext.get()->fTexParameteri(target, pname, param);
}
GrGLvoid glTexParameteriv_mozilla(GrGLenum target, GrGLenum pname, const GrGLint* params)
{
return sGLContext.get()->fTexParameteriv(target, pname, params);
}
GrGLvoid glTexSubImage2D_mozilla(GrGLenum target, GrGLint level,
GrGLint xoffset, GrGLint yoffset,
GrGLsizei width, GrGLsizei height,
GrGLenum format, GrGLenum type, const void* pixels)
{
return sGLContext.get()->fTexSubImage2D(target, level,
xoffset, yoffset,
width, height,
format, type, pixels);
}
GrGLvoid glUniform1f_mozilla(GrGLint location, GrGLfloat v)
{
return sGLContext.get()->fUniform1f(location, v);
}
GrGLvoid glUniform1i_mozilla(GrGLint location, GrGLint v)
{
return sGLContext.get()->fUniform1i(location, v);
}
GrGLvoid glUniform1fv_mozilla(GrGLint location, GrGLsizei count, const GrGLfloat* v)
{
return sGLContext.get()->fUniform1fv(location, count, v);
}
GrGLvoid glUniform1iv_mozilla(GrGLint location, GrGLsizei count, const GrGLint* v)
{
return sGLContext.get()->fUniform1iv(location, count, v);
}
GrGLvoid glUniform2f_mozilla(GrGLint location, GrGLfloat v0, GrGLfloat v1)
{
return sGLContext.get()->fUniform2f(location, v0, v1);
}
GrGLvoid glUniform2i_mozilla(GrGLint location, GrGLint v0, GrGLint v1)
{
return sGLContext.get()->fUniform2i(location, v0, v1);
}
GrGLvoid glUniform2fv_mozilla(GrGLint location, GrGLsizei count, const GrGLfloat* v)
{
return sGLContext.get()->fUniform2fv(location, count, v);
}
GrGLvoid glUniform2iv_mozilla(GrGLint location, GrGLsizei count, const GrGLint* v)
{
return sGLContext.get()->fUniform2iv(location, count, v);
}
GrGLvoid glUniform3f_mozilla(GrGLint location, GrGLfloat v0, GrGLfloat v1, GrGLfloat v2)
{
return sGLContext.get()->fUniform3f(location, v0, v1, v2);
}
GrGLvoid glUniform3i_mozilla(GrGLint location, GrGLint v0, GrGLint v1, GrGLint v2)
{
return sGLContext.get()->fUniform3i(location, v0, v1, v2);
}
GrGLvoid glUniform3fv_mozilla(GrGLint location, GrGLsizei count, const GrGLfloat* v)
{
return sGLContext.get()->fUniform3fv(location, count, v);
}
GrGLvoid glUniform3iv_mozilla(GrGLint location, GrGLsizei count, const GrGLint* v)
{
return sGLContext.get()->fUniform3iv(location, count, v);
}
GrGLvoid glUniform4f_mozilla(GrGLint location, GrGLfloat v0, GrGLfloat v1, GrGLfloat v2, GrGLfloat v3)
{
return sGLContext.get()->fUniform4f(location, v0, v1, v2, v3);
}
GrGLvoid glUniform4i_mozilla(GrGLint location, GrGLint v0, GrGLint v1, GrGLint v2, GrGLint v3)
{
return sGLContext.get()->fUniform4i(location, v0, v1, v2, v3);
}
GrGLvoid glUniform4fv_mozilla(GrGLint location, GrGLsizei count, const GrGLfloat* v)
{
return sGLContext.get()->fUniform4fv(location, count, v);
}
GrGLvoid glUniform4iv_mozilla(GrGLint location, GrGLsizei count, const GrGLint* v)
{
return sGLContext.get()->fUniform4iv(location, count, v);
}
GrGLvoid glUniformMatrix2fv_mozilla(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value)
{
return sGLContext.get()->fUniformMatrix2fv(location, count, transpose, value);
}
GrGLvoid glUniformMatrix3fv_mozilla(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value)
{
return sGLContext.get()->fUniformMatrix3fv(location, count, transpose, value);
}
GrGLvoid glUniformMatrix4fv_mozilla(GrGLint location, GrGLsizei count, GrGLboolean transpose, const GrGLfloat* value)
{
return sGLContext.get()->fUniformMatrix4fv(location, count, transpose, value);
}
GrGLvoid glUseProgram_mozilla(GrGLuint program)
{
return sGLContext.get()->fUseProgram(program);
}
GrGLvoid glVertexAttrib4fv_mozilla(GrGLuint index, const GrGLfloat* values)
{
return sGLContext.get()->fVertexAttrib4fv(index, values);
}
GrGLvoid glVertexAttribPointer_mozilla(GrGLuint index, GrGLint size, GrGLenum type, GrGLboolean normalized, GrGLsizei stride, const void* ptr)
{
return sGLContext.get()->fVertexAttribPointer(index, size, type, normalized, stride, ptr);
}
GrGLvoid glViewport_mozilla(GrGLint x, GrGLint y, GrGLsizei width, GrGLsizei height)
{
return sGLContext.get()->fViewport(x, y, width, height);
}
// Required if the bindings are GLES2 or desktop OpenGL 2.0
GrGLvoid glStencilFuncSeparate_mozilla(GrGLenum frontfunc, GrGLenum backfunc, GrGLint ref, GrGLuint mask)
{
return sGLContext.get()->fStencilFuncSeparate(frontfunc, backfunc, ref, mask);
}
GrGLvoid glStencilMaskSeparate_mozilla(GrGLenum face, GrGLuint mask)
{
return sGLContext.get()->fStencilMaskSeparate(face, mask);
}
GrGLvoid glStencilOpSeparate_mozilla(GrGLenum face, GrGLenum sfail, GrGLenum dpfail, GrGLenum dppass)
{
return sGLContext.get()->fStencilOpSeparate(face, sfail, dpfail, dppass);
}
// Not in GLES2
GrGLvoid glGetTexLevelParameteriv_mozilla(GrGLenum target, GrGLint level, GrGLenum pname, GrGLint *params)
{
return sGLContext.get()->fGetTexLevelParameteriv(target, level, pname, params);
}
GrGLvoid glDrawBuffer_mozilla(GrGLenum mode)
{
return sGLContext.get()->fDrawBuffer(mode);
}
GrGLvoid glReadBuffer_mozilla(GrGLenum mode)
{
return sGLContext.get()->fReadBuffer(mode);
}
// Desktop OpenGL version >= 1.5
GrGLvoid glGenQueries_mozilla(GrGLsizei n, GrGLuint* ids)
{
return sGLContext.get()->fGenQueries(n, ids);
}
GrGLvoid glDeleteQueries_mozilla(GrGLsizei n, const GrGLuint* ids)
{
return sGLContext.get()->fDeleteQueries(n, ids);
}
GrGLvoid glBeginQuery_mozilla(GrGLenum target, GrGLuint id)
{
return sGLContext.get()->fBeginQuery(target, id);
}
GrGLvoid glEndQuery_mozilla(GrGLenum target)
{
return sGLContext.get()->fEndQuery(target);
}
GrGLvoid glGetQueryiv_mozilla(GrGLenum target, GrGLenum pname, GrGLint* params)
{
return sGLContext.get()->fGetQueryiv(target, pname, params);
}
GrGLvoid glGetQueryObjectiv_mozilla(GrGLuint id, GrGLenum pname, GrGLint* params)
{
return sGLContext.get()->fGetQueryObjectiv(id, pname, params);
}
GrGLvoid glGetQueryObjectuiv_mozilla(GrGLuint id, GrGLenum pname, GrGLuint* params)
{
return sGLContext.get()->fGetQueryObjectuiv(id, pname, params);
}
// Desktop OpenGL version >= 2.0
GrGLvoid glDrawBuffers_mozilla(GrGLsizei n, const GrGLenum* bufs)
{
return sGLContext.get()->fDrawBuffers(n, bufs);
}
// GLContext supports glMapBuffer on everything (GL_OES_mapbuffer)
GrGLvoid* glMapBuffer_mozilla(GrGLenum target, GrGLenum access)
{
return sGLContext.get()->fMapBuffer(target, access);
}
GrGLboolean glUnmapBuffer_mozilla(GrGLenum target)
{
return sGLContext.get()->fUnmapBuffer(target);
}
// GLContext supports glCompressedTexImage2D (GL_ARB_texture_compression)
GrGLvoid glCompressedTexImage2D_mozilla(GrGLenum target, GrGLint level, GrGLenum internalformat,
GrGLsizei width, GrGLsizei height, GrGLint border,
GrGLsizei imageSize, const GrGLvoid* pixels)
{
return sGLContext.get()->fCompressedTexImage2D(target, level, internalformat,
width, height, border,
imageSize, pixels);
}
// GLContext supports glBlitFramebuffer/glRenderbufferStorageMultisample (GL_ARB_framebuffer_object)
GrGLvoid glRenderbufferStorageMultisample_mozilla(GrGLenum target, GrGLsizei samples, GrGLenum internalformat,
GrGLsizei width, GrGLsizei height)
{
return sGLContext.get()->fRenderbufferStorageMultisample(target, samples, internalformat,
width, height);
}
GrGLvoid glBlitFramebuffer_mozilla(GrGLint srcX0, GrGLint srcY0,
GrGLint srcX1, GrGLint srcY1,
GrGLint dstX0, GrGLint dstY0,
GrGLint dstX1, GrGLint dstY1,
GrGLbitfield mask, GrGLenum filter) {
return sGLContext.get()->fBlitFramebuffer(srcX0, srcY0,
srcX1, srcY1,
dstX0, dstY0,
dstX1, dstY1,
mask, filter);
}
GrGLvoid glBindVertexArray_mozilla(GrGLuint array) {
return sGLContext.get()->fBindVertexArray(array);
}
GrGLvoid glDeleteVertexArrays_mozilla(GrGLsizei n, const GrGLuint *arrays) {
return sGLContext.get()->fDeleteVertexArrays(n, arrays);
}
GrGLvoid glGenVertexArrays_mozilla(GrGLsizei n, GrGLuint *arrays) {
return sGLContext.get()->fGenVertexArrays(n, arrays);
}
} // extern "C"
static GrGLInterface* CreateGrGLInterfaceFromGLContext(GLContext* context)
{
SetStaticGLContext(context);
GrGLInterface* i = new GrGLInterface();
i->fCallback = EnsureGLContext;
i->fCallbackData = 0; // must be later initialized to be a valid DrawTargetSkia* pointer
context->MakeCurrent();
// We support both desktop GL and GLES2
if (context->IsGLES()) {
i->fStandard = kGLES_GrGLStandard;
} else {
i->fStandard = kGL_GrGLStandard;
}
GrGLExtensions extensions;
if (!extensions.init(i->fStandard, glGetString_mozilla, NULL, glGetIntegerv_mozilla)) {
delete i;
return nullptr;
}
i->fExtensions.swap(&extensions);
// Core GL functions required by Ganesh
i->fFunctions.fActiveTexture = glActiveTexture_mozilla;
i->fFunctions.fAttachShader = glAttachShader_mozilla;
i->fFunctions.fBindAttribLocation = glBindAttribLocation_mozilla;
i->fFunctions.fBindBuffer = glBindBuffer_mozilla;
i->fFunctions.fBindFramebuffer = glBindFramebuffer_mozilla;
i->fFunctions.fBindRenderbuffer = glBindRenderbuffer_mozilla;
i->fFunctions.fBindTexture = glBindTexture_mozilla;
i->fFunctions.fBlendFunc = glBlendFunc_mozilla;
i->fFunctions.fBlendColor = glBlendColor_mozilla;
i->fFunctions.fBufferData = glBufferData_mozilla;
i->fFunctions.fBufferSubData = glBufferSubData_mozilla;
i->fFunctions.fCheckFramebufferStatus = glCheckFramebufferStatus_mozilla;
i->fFunctions.fClear = glClear_mozilla;
i->fFunctions.fClearColor = glClearColor_mozilla;
i->fFunctions.fClearStencil = glClearStencil_mozilla;
i->fFunctions.fColorMask = glColorMask_mozilla;
i->fFunctions.fCompileShader = glCompileShader_mozilla;
i->fFunctions.fCopyTexSubImage2D = glCopyTexSubImage2D_mozilla;
i->fFunctions.fCreateProgram = glCreateProgram_mozilla;
i->fFunctions.fCreateShader = glCreateShader_mozilla;
i->fFunctions.fCullFace = glCullFace_mozilla;
i->fFunctions.fDeleteBuffers = glDeleteBuffers_mozilla;
i->fFunctions.fDeleteFramebuffers = glDeleteFramebuffers_mozilla;
i->fFunctions.fDeleteProgram = glDeleteProgram_mozilla;
i->fFunctions.fDeleteRenderbuffers = glDeleteRenderbuffers_mozilla;
i->fFunctions.fDeleteShader = glDeleteShader_mozilla;
i->fFunctions.fDeleteTextures = glDeleteTextures_mozilla;
i->fFunctions.fDepthMask = glDepthMask_mozilla;
i->fFunctions.fDisable = glDisable_mozilla;
i->fFunctions.fDisableVertexAttribArray = glDisableVertexAttribArray_mozilla;
i->fFunctions.fDrawArrays = glDrawArrays_mozilla;
i->fFunctions.fDrawElements = glDrawElements_mozilla;
i->fFunctions.fEnable = glEnable_mozilla;
i->fFunctions.fEnableVertexAttribArray = glEnableVertexAttribArray_mozilla;
i->fFunctions.fFinish = glFinish_mozilla;
i->fFunctions.fFlush = glFlush_mozilla;
i->fFunctions.fFramebufferRenderbuffer = glFramebufferRenderbuffer_mozilla;
i->fFunctions.fFramebufferTexture2D = glFramebufferTexture2D_mozilla;
i->fFunctions.fFrontFace = glFrontFace_mozilla;
i->fFunctions.fGenBuffers = glGenBuffers_mozilla;
i->fFunctions.fGenFramebuffers = glGenFramebuffers_mozilla;
i->fFunctions.fGenRenderbuffers = glGenRenderbuffers_mozilla;
i->fFunctions.fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameteriv_mozilla;
i->fFunctions.fGenTextures = glGenTextures_mozilla;
i->fFunctions.fGenerateMipmap = glGenerateMipmap_mozilla;
i->fFunctions.fGetBufferParameteriv = glGetBufferParameteriv_mozilla;
i->fFunctions.fGetError = glGetError_mozilla;
i->fFunctions.fGetIntegerv = glGetIntegerv_mozilla;
i->fFunctions.fGetProgramInfoLog = glGetProgramInfoLog_mozilla;
i->fFunctions.fGetProgramiv = glGetProgramiv_mozilla;
i->fFunctions.fGetRenderbufferParameteriv = glGetRenderbufferParameteriv_mozilla;
i->fFunctions.fGetShaderInfoLog = glGetShaderInfoLog_mozilla;
i->fFunctions.fGetShaderiv = glGetShaderiv_mozilla;
i->fFunctions.fGetString = glGetString_mozilla;
i->fFunctions.fGetUniformLocation = glGetUniformLocation_mozilla;
i->fFunctions.fLineWidth = glLineWidth_mozilla;
i->fFunctions.fLinkProgram = glLinkProgram_mozilla;
i->fFunctions.fPixelStorei = glPixelStorei_mozilla;
i->fFunctions.fReadPixels = glReadPixels_mozilla;
i->fFunctions.fRenderbufferStorage = glRenderbufferStorage_mozilla;
i->fFunctions.fScissor = glScissor_mozilla;
i->fFunctions.fShaderSource = glShaderSource_mozilla;
i->fFunctions.fStencilFunc = glStencilFunc_mozilla;
i->fFunctions.fStencilMask = glStencilMask_mozilla;
i->fFunctions.fStencilOp = glStencilOp_mozilla;
i->fFunctions.fTexImage2D = glTexImage2D_mozilla;
i->fFunctions.fTexParameteri = glTexParameteri_mozilla;
i->fFunctions.fTexParameteriv = glTexParameteriv_mozilla;
i->fFunctions.fTexSubImage2D = glTexSubImage2D_mozilla;
i->fFunctions.fUniform1f = glUniform1f_mozilla;
i->fFunctions.fUniform1i = glUniform1i_mozilla;
i->fFunctions.fUniform1fv = glUniform1fv_mozilla;
i->fFunctions.fUniform1iv = glUniform1iv_mozilla;
i->fFunctions.fUniform2f = glUniform2f_mozilla;
i->fFunctions.fUniform2i = glUniform2i_mozilla;
i->fFunctions.fUniform2fv = glUniform2fv_mozilla;
i->fFunctions.fUniform2iv = glUniform2iv_mozilla;
i->fFunctions.fUniform3f = glUniform3f_mozilla;
i->fFunctions.fUniform3i = glUniform3i_mozilla;
i->fFunctions.fUniform3fv = glUniform3fv_mozilla;
i->fFunctions.fUniform3iv = glUniform3iv_mozilla;
i->fFunctions.fUniform4f = glUniform4f_mozilla;
i->fFunctions.fUniform4i = glUniform4i_mozilla;
i->fFunctions.fUniform4fv = glUniform4fv_mozilla;
i->fFunctions.fUniform4iv = glUniform4iv_mozilla;
i->fFunctions.fUniformMatrix2fv = glUniformMatrix2fv_mozilla;
i->fFunctions.fUniformMatrix3fv = glUniformMatrix3fv_mozilla;
i->fFunctions.fUniformMatrix4fv = glUniformMatrix4fv_mozilla;
i->fFunctions.fUseProgram = glUseProgram_mozilla;
i->fFunctions.fVertexAttrib4fv = glVertexAttrib4fv_mozilla;
i->fFunctions.fVertexAttribPointer = glVertexAttribPointer_mozilla;
i->fFunctions.fViewport = glViewport_mozilla;
// Required for either desktop OpenGL 2.0 or OpenGL ES 2.0
i->fFunctions.fStencilFuncSeparate = glStencilFuncSeparate_mozilla;
i->fFunctions.fStencilMaskSeparate = glStencilMaskSeparate_mozilla;
i->fFunctions.fStencilOpSeparate = glStencilOpSeparate_mozilla;
// GLContext supports glMapBuffer
i->fFunctions.fMapBuffer = glMapBuffer_mozilla;
i->fFunctions.fUnmapBuffer = glUnmapBuffer_mozilla;
// GLContext supports glRenderbufferStorageMultisample/glBlitFramebuffer
i->fFunctions.fRenderbufferStorageMultisample = glRenderbufferStorageMultisample_mozilla;
i->fFunctions.fBlitFramebuffer = glBlitFramebuffer_mozilla;
// GLContext supports glCompressedTexImage2D
i->fFunctions.fCompressedTexImage2D = glCompressedTexImage2D_mozilla;
// GL_OES_vertex_array_object
i->fFunctions.fBindVertexArray = glBindVertexArray_mozilla;
i->fFunctions.fDeleteVertexArrays = glDeleteVertexArrays_mozilla;
i->fFunctions.fGenVertexArrays = glGenVertexArrays_mozilla;
// Desktop GL
i->fFunctions.fGetTexLevelParameteriv = glGetTexLevelParameteriv_mozilla;
i->fFunctions.fDrawBuffer = glDrawBuffer_mozilla;
i->fFunctions.fReadBuffer = glReadBuffer_mozilla;
// Desktop OpenGL > 1.5
i->fFunctions.fGenQueries = glGenQueries_mozilla;
i->fFunctions.fDeleteQueries = glDeleteQueries_mozilla;
i->fFunctions.fBeginQuery = glBeginQuery_mozilla;
i->fFunctions.fEndQuery = glEndQuery_mozilla;
i->fFunctions.fGetQueryiv = glGetQueryiv_mozilla;
i->fFunctions.fGetQueryObjectiv = glGetQueryObjectiv_mozilla;
i->fFunctions.fGetQueryObjectuiv = glGetQueryObjectuiv_mozilla;
// Desktop OpenGL > 2.0
i->fFunctions.fDrawBuffers = glDrawBuffers_mozilla;
return i;
}
SkiaGLGlue::SkiaGLGlue(GLContext* context)
: mGLContext(context)
{
mGrGLInterface.adopt(CreateGrGLInterfaceFromGLContext(mGLContext));
mGrGLInterface->fCallbackData = reinterpret_cast<GrGLInterfaceCallbackData>(this);
mGrContext.adopt(GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)mGrGLInterface.get()));
}
SkiaGLGlue::~SkiaGLGlue()
{
/*
* These members have inter-dependencies, but do not keep each other alive, so
* destruction order is very important here: mGrContext uses mGrGLInterface, and
* through it, uses mGLContext
*/
mGrContext = nullptr;
mGrGLInterface = nullptr;
mGLContext = nullptr;
}