diff options
author | 2015-11-22 14:51:00 -0800 | |
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committer | 2015-11-22 14:51:00 -0800 | |
commit | 7ea33f5e1ae9eb1fb1e7377d6edf6acdcf71d103 (patch) | |
tree | 92aa7841b61ab93ec8a95d834e309ae0d2cf04e8 /src/gpu/gl/angle/SkANGLEGLContext.cpp | |
parent | de3aac8cea8a7113f31591e6e02c51fe0ac45280 (diff) |
Initial version of external_oes texture support and unit test
Committed: https://skia.googlesource.com/skia/+/27a048700778d4cebfc23301d1780649791b0e03
Review URL: https://codereview.chromium.org/1451683002
Diffstat (limited to 'src/gpu/gl/angle/SkANGLEGLContext.cpp')
-rw-r--r-- | src/gpu/gl/angle/SkANGLEGLContext.cpp | 66 |
1 files changed, 62 insertions, 4 deletions
diff --git a/src/gpu/gl/angle/SkANGLEGLContext.cpp b/src/gpu/gl/angle/SkANGLEGLContext.cpp index 64a3bdec74..54ef02d492 100644 --- a/src/gpu/gl/angle/SkANGLEGLContext.cpp +++ b/src/gpu/gl/angle/SkANGLEGLContext.cpp @@ -11,6 +11,9 @@ #include <EGL/egl.h> #include <EGL/eglext.h> +#include "gl/GrGLDefines.h" +#include "gl/GrGLUtil.h" + #define EGL_PLATFORM_ANGLE_ANGLE 0x3202 #define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3203 #define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3207 @@ -34,8 +37,7 @@ void* SkANGLEGLContext::GetD3DEGLDisplay(void* nativeDisplay, bool useGLBackend) EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE, EGL_NONE }; - display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, - nativeDisplay, attribs); + display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, nativeDisplay, attribs); } else { // Try for an ANGLE D3D11 context, fall back to D3D9, and finally GL. EGLint attribs[3][3] = { @@ -56,8 +58,7 @@ void* SkANGLEGLContext::GetD3DEGLDisplay(void* nativeDisplay, bool useGLBackend) } }; for (int i = 0; i < 3 && display == EGL_NO_DISPLAY; ++i) { - display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, - nativeDisplay, attribs[i]); + display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE,nativeDisplay, attribs[i]); } } return display; @@ -79,6 +80,7 @@ SkANGLEGLContext::SkANGLEGLContext(bool useGLBackend) EGL_NONE }; + fIsGLBackend = useGLBackend; fDisplay = GetD3DEGLDisplay(EGL_DEFAULT_DISPLAY, useGLBackend); if (EGL_NO_DISPLAY == fDisplay) { SkDebugf("Could not create EGL display!"); @@ -129,6 +131,62 @@ SkANGLEGLContext::~SkANGLEGLContext() { this->destroyGLContext(); } +GrEGLImage SkANGLEGLContext::texture2DToEGLImage(GrGLuint texID) const { + if (!this->gl()->hasExtension("EGL_KHR_gl_texture_2D_image")) { + return GR_EGL_NO_IMAGE; + } + GrEGLImage img; + GrEGLint attribs[] = { GR_EGL_GL_TEXTURE_LEVEL, 0, + GR_EGL_IMAGE_PRESERVED, GR_EGL_TRUE, + GR_EGL_NONE }; + // 64 bit cast is to shut Visual C++ up about casting 32 bit value to a pointer. + GrEGLClientBuffer clientBuffer = reinterpret_cast<GrEGLClientBuffer>((uint64_t)texID); + GR_GL_CALL_RET(this->gl(), img, + EGLCreateImage(fDisplay, fContext, GR_EGL_GL_TEXTURE_2D, clientBuffer, + attribs)); + return img; +} + +void SkANGLEGLContext::destroyEGLImage(GrEGLImage image) const { + GR_GL_CALL(this->gl(), EGLDestroyImage(fDisplay, image)); +} + +GrGLuint SkANGLEGLContext::eglImageToExternalTexture(GrEGLImage image) const { + GrGLClearErr(this->gl()); + if (!this->gl()->hasExtension("GL_OES_EGL_image_external")) { + return 0; + } + GrGLEGLImageTargetTexture2DProc glEGLImageTargetTexture2D = + (GrGLEGLImageTargetTexture2DProc)eglGetProcAddress("glEGLImageTargetTexture2DOES"); + if (!glEGLImageTargetTexture2D) { + return 0; + } + GrGLuint texID; + GR_GL_CALL(this->gl(), GenTextures(1, &texID)); + if (!texID) { + return 0; + } + GR_GL_CALL(this->gl(), BindTexture(GR_GL_TEXTURE_EXTERNAL, texID)); + if (GR_GL_GET_ERROR(this->gl()) != GR_GL_NO_ERROR) { + GR_GL_CALL(this->gl(), DeleteTextures(1, &texID)); + return 0; + } + glEGLImageTargetTexture2D(GR_GL_TEXTURE_EXTERNAL, image); + if (GR_GL_GET_ERROR(this->gl()) != GR_GL_NO_ERROR) { + GR_GL_CALL(this->gl(), DeleteTextures(1, &texID)); + return 0; + } + return texID; +} + +SkGLContext* SkANGLEGLContext::createNew() const { + SkGLContext* ctx = SkANGLEGLContext::Create(this->gl()->fStandard, fIsGLBackend); + if (ctx) { + ctx->makeCurrent(); + } + return ctx; +} + void SkANGLEGLContext::destroyGLContext() { if (fDisplay) { eglMakeCurrent(fDisplay, 0, 0, 0); |