f750fbcb69
WindowContext still supports color spaces, but not other color types. Any off-screen rendering is the app's responsibility. This change also adds (working) F16 support to viewer. Note that the previous 10-bit and FP16 support in WindowContext was broken. There was no code to push the off-screen canvas to the window. If you ever made it to the unreachable off-screen code path in createSurface, it would have simply stopped drawing. The decision to limit the window's gamut to sRGB is mostly driven by my desire to add real-time editing of gamut. This design lets us do that, without tearing down and rebuilding the window for every change. An application could still supply a different gamut via setDisplayParams and render directly to the back buffer with proper color correction. BUG=skia: Change-Id: I94df35c7a42faee396009acc83683e40bb3c284d Reviewed-on: https://skia-review.googlesource.com/8153 Reviewed-by: Jim Van Verth <jvanverth@google.com> Reviewed-by: Matt Sarett <msarett@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
110 lines
2.5 KiB
C++
110 lines
2.5 KiB
C++
|
|
/*
|
|
* Copyright 2016 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "../GLWindowContext.h"
|
|
#include "WindowContextFactory_mac.h"
|
|
|
|
#include "SDL.h"
|
|
|
|
#include <OpenGL/gl.h>
|
|
|
|
using sk_app::DisplayParams;
|
|
using sk_app::window_context_factory::MacWindowInfo;
|
|
using sk_app::GLWindowContext;
|
|
|
|
namespace {
|
|
|
|
class GLWindowContext_mac : public GLWindowContext {
|
|
public:
|
|
GLWindowContext_mac(const MacWindowInfo&, const DisplayParams&);
|
|
|
|
~GLWindowContext_mac() override;
|
|
|
|
void onSwapBuffers() override;
|
|
|
|
void onInitializeContext() override;
|
|
void onDestroyContext() override;
|
|
|
|
private:
|
|
SDL_Window* fWindow;
|
|
SDL_GLContext fGLContext;
|
|
|
|
typedef GLWindowContext INHERITED;
|
|
};
|
|
|
|
GLWindowContext_mac::GLWindowContext_mac(const MacWindowInfo& info, const DisplayParams& params)
|
|
: INHERITED(params)
|
|
, fWindow(info.fWindow)
|
|
, fGLContext(nullptr) {
|
|
|
|
// any config code here (particularly for msaa)?
|
|
|
|
this->initializeContext();
|
|
}
|
|
|
|
GLWindowContext_mac::~GLWindowContext_mac() {
|
|
this->destroyContext();
|
|
}
|
|
|
|
void GLWindowContext_mac::onInitializeContext() {
|
|
SkASSERT(fWindow);
|
|
|
|
fGLContext = SDL_GL_CreateContext(fWindow);
|
|
if (!fGLContext) {
|
|
SkDebugf("%s\n", SDL_GetError());
|
|
return;
|
|
}
|
|
|
|
if (0 == SDL_GL_MakeCurrent(fWindow, fGLContext)) {
|
|
glClearStencil(0);
|
|
glClearColor(0, 0, 0, 0);
|
|
glStencilMask(0xffffffff);
|
|
glClear(GL_STENCIL_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
|
|
|
|
SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE, &fStencilBits);
|
|
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &fSampleCount);
|
|
|
|
SDL_GetWindowSize(fWindow, &fWidth, &fHeight);
|
|
glViewport(0, 0, fWidth, fHeight);
|
|
} else {
|
|
SkDebugf("MakeCurrent failed: %s\n", SDL_GetError());
|
|
}
|
|
}
|
|
|
|
void GLWindowContext_mac::onDestroyContext() {
|
|
if (!fWindow || !fGLContext) {
|
|
return;
|
|
}
|
|
SDL_GL_DeleteContext(fGLContext);
|
|
fGLContext = nullptr;
|
|
}
|
|
|
|
|
|
void GLWindowContext_mac::onSwapBuffers() {
|
|
if (fWindow && fGLContext) {
|
|
SDL_GL_SwapWindow(fWindow);
|
|
}
|
|
}
|
|
|
|
} // anonymous namespace
|
|
|
|
namespace sk_app {
|
|
namespace window_context_factory {
|
|
|
|
WindowContext* NewGLForMac(const MacWindowInfo& info, const DisplayParams& params) {
|
|
WindowContext* ctx = new GLWindowContext_mac(info, params);
|
|
if (!ctx->isValid()) {
|
|
delete ctx;
|
|
return nullptr;
|
|
}
|
|
return ctx;
|
|
}
|
|
|
|
} // namespace window_context_factory
|
|
} // namespace sk_app
|