42f0d17876
This change will break Darwin. I have only built and tested this on
desktop linux and Android linux. A follow-up CL will fix Darwin.
Currently, OpenGL gets its own thread, and UI C code (e.g. the Android
event loop, or the X11 event loop) gets its own thread. This relies on
multiple system-provided UI-related C libraries working nicely together,
even when running on different threads. Keeping all the C code on the
one thread seems more sound.
As side-effects:
- In package app/debug, DrawFPS now takes an explicit Config.
- In package app, some callbacks now take an explicit Config.
- In package exp/sprite, Render now takes an explicit Config.
- In package event, there are new events (Config, Draw, Lifecycle),
and an event filter mechanism to replace multiple app Callbacks.
- In package geom, the deprecated Width, Height and PixelsPerPt global
variables were removed in favor of an event.Config that is
explicitly passed around (and does not require mutex-locking).
Converting a geom.Pt to pixels now requires passing a pixelsPerPt.
- In package gl, the Do, Start and Stop functions are removed, as well
as the need to call Start in its own goroutine. There is no longer a
separate GL thread. Instead, package app explicitly performs any GL
work (gl.DoWork) when some is available (gl.WorkAvailable).
- In package gl/glutil, Image.Draw now takes an explicit Config.
Callbacks are no longer executed on 'the UI thread'.
Changing the app programming model from callbacks to events (since a
channel of events works with select) will be a follow-up change.
Change-Id: Id9865cd9ee1c45a98c613e9021a63c17226a64b1
Reviewed-on: https://go-review.googlesource.com/11351
Reviewed-by: David Crawshaw <crawshaw@golang.org>
180 lines
3.4 KiB
C
180 lines
3.4 KiB
C
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#ifdef os_linux
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#include <GLES2/gl2.h>
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#endif
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#ifdef os_ios
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#include <OpenGLES/ES2/glext.h>
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#endif
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#ifdef os_osx
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#include <OpenGL/gl3.h>
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#endif
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#include <stdint.h>
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#include <stdlib.h>
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typedef enum {
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glfnUNDEFINED,
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glfnActiveTexture,
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glfnAttachShader,
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glfnBindAttribLocation,
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glfnBindBuffer,
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glfnBindFramebuffer,
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glfnBindRenderbuffer,
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glfnBindTexture,
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glfnBlendColor,
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glfnBlendEquation,
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glfnBlendEquationSeparate,
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glfnBlendFunc,
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glfnBlendFuncSeparate,
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glfnBufferData,
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glfnBufferSubData,
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glfnCheckFramebufferStatus,
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glfnClear,
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glfnClearColor,
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glfnClearDepthf,
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glfnClearStencil,
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glfnColorMask,
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glfnCompileShader,
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glfnCompressedTexImage2D,
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glfnCompressedTexSubImage2D,
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glfnCopyTexImage2D,
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glfnCopyTexSubImage2D,
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glfnCreateProgram,
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glfnCreateShader,
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glfnCullFace,
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glfnDeleteBuffer,
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glfnDeleteFramebuffer,
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glfnDeleteProgram,
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glfnDeleteRenderbuffer,
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glfnDeleteShader,
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glfnDeleteTexture,
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glfnDepthFunc,
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glfnDepthRangef,
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glfnDepthMask,
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glfnDetachShader,
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glfnDisable,
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glfnDisableVertexAttribArray,
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glfnDrawArrays,
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glfnDrawElements,
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glfnEnable,
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glfnEnableVertexAttribArray,
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glfnFinish,
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glfnFlush,
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glfnFramebufferRenderbuffer,
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glfnFramebufferTexture2D,
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glfnFrontFace,
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glfnGenBuffer,
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glfnGenFramebuffer,
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glfnGenRenderbuffer,
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glfnGenTexture,
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glfnGenerateMipmap,
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glfnGetActiveAttrib,
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glfnGetActiveUniform,
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glfnGetAttachedShaders,
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glfnGetAttribLocation,
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glfnGetBooleanv,
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glfnGetBufferParameteri,
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glfnGetError,
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glfnGetFloatv,
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glfnGetFramebufferAttachmentParameteriv,
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glfnGetIntegerv,
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glfnGetProgramInfoLog,
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glfnGetProgramiv,
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glfnGetRenderbufferParameteriv,
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glfnGetShaderInfoLog,
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glfnGetShaderPrecisionFormat,
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glfnGetShaderSource,
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glfnGetShaderiv,
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glfnGetString,
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glfnGetTexParameterfv,
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glfnGetTexParameteriv,
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glfnGetUniformLocation,
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glfnGetUniformfv,
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glfnGetUniformiv,
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glfnGetVertexAttribfv,
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glfnGetVertexAttribiv,
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glfnHint,
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glfnIsBuffer,
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glfnIsEnabled,
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glfnIsFramebuffer,
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glfnIsProgram,
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glfnIsRenderbuffer,
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glfnIsShader,
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glfnIsTexture,
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glfnLineWidth,
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glfnLinkProgram,
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glfnPixelStorei,
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glfnPolygonOffset,
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glfnReadPixels,
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glfnReleaseShaderCompiler,
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glfnRenderbufferStorage,
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glfnSampleCoverage,
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glfnScissor,
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glfnShaderSource,
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glfnStencilFunc,
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glfnStencilFuncSeparate,
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glfnStencilMask,
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glfnStencilMaskSeparate,
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glfnStencilOp,
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glfnStencilOpSeparate,
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glfnTexImage2D,
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glfnTexParameterf,
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glfnTexParameterfv,
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glfnTexParameteri,
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glfnTexParameteriv,
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glfnTexSubImage2D,
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glfnUniform1f,
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glfnUniform1fv,
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glfnUniform1i,
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glfnUniform1iv,
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glfnUniform2f,
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glfnUniform2fv,
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glfnUniform2i,
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glfnUniform2iv,
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glfnUniform3f,
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glfnUniform3fv,
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glfnUniform3i,
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glfnUniform3iv,
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glfnUniform4f,
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glfnUniform4fv,
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glfnUniform4i,
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glfnUniform4iv,
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glfnUniformMatrix2fv,
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glfnUniformMatrix3fv,
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glfnUniformMatrix4fv,
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glfnUseProgram,
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glfnValidateProgram,
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glfnVertexAttrib1f,
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glfnVertexAttrib1fv,
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glfnVertexAttrib2f,
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glfnVertexAttrib2fv,
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glfnVertexAttrib3f,
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glfnVertexAttrib3fv,
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glfnVertexAttrib4f,
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glfnVertexAttrib4fv,
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glfnVertexAttribPointer,
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glfnViewport,
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} glfn;
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struct fnargs {
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glfn fn;
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uintptr_t a0;
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uintptr_t a1;
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uintptr_t a2;
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uintptr_t a3;
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uintptr_t a4;
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uintptr_t a5;
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uintptr_t a6;
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uintptr_t a7;
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uintptr_t a8;
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};
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extern uintptr_t ret;
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extern void processFn(struct fnargs* args);
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