stream-servers/PostWorker.cpp - platform/hardware/google/gfxstream - Git at Google

 #include "PostWorker.h"

 #include "ColorBuffer.h"
 #include "DispatchTables.h"
 #include "FrameBuffer.h"
 #include "RenderThreadInfo.h"
 #include "OpenGLESDispatch/EGLDispatch.h"
 #include "OpenGLESDispatch/GLESv2Dispatch.h"
 #include "host-common/misc.h"

 #define POST_DEBUG 0
 #if POST_DEBUG >= 1
 #define DD(fmt, ...) \
     fprintf(stderr, "%s:%d| " fmt, __func__, __LINE__, ##__VA_ARGS__)
 #else
 #define DD(fmt, ...) (void)0
 #endif


 PostWorker::PostWorker(PostWorker::BindSubwinCallback&& cb) :
     mFb(FrameBuffer::getFB()),
     mBindSubwin(cb) {}

 void PostWorker::fillMultiDisplayPostStruct(ComposeLayer* l,
                                             hwc_rect_t displayArea,
                                             hwc_frect_t cropArea,
                                             hwc_transform_t transform) {
     l->composeMode = HWC2_COMPOSITION_DEVICE;
     l->blendMode = HWC2_BLEND_MODE_NONE;
     l->transform = transform;
     l->alpha = 1.0;
     l->displayFrame = displayArea;
     l->crop = cropArea;
 }

 void PostWorker::post(ColorBuffer* cb) {
     // bind the subwindow eglSurface
     if (!m_initialized) {
         m_initialized = mBindSubwin();
     }

     float dpr = mFb->getDpr();
     int windowWidth = mFb->windowWidth();
     int windowHeight = mFb->windowHeight();
     float px = mFb->getPx();
     float py = mFb->getPy();
     int zRot = mFb->getZrot();
     hwc_transform_t rotation = (hwc_transform_t)0;

     cb->waitSync();

     // Find the x and y values at the origin when "fully scrolled."
     // Multiply by 2 because the texture goes from -1 to 1, not 0 to 1.
     // Multiply the windowing coordinates by DPR because they ignore
     // DPR, but the viewport includes DPR.
     float fx = 2.f * (m_viewportWidth  - windowWidth  * dpr) / (float)m_viewportWidth;
     float fy = 2.f * (m_viewportHeight - windowHeight * dpr) / (float)m_viewportHeight;

     // finally, compute translation values
     float dx = px * fx;
     float dy = py * fy;

     if (emugl::get_emugl_multi_display_operations().isMultiDisplayEnabled()) {
         uint32_t combinedW, combinedH;
         emugl::get_emugl_multi_display_operations().getCombinedDisplaySize(&combinedW, &combinedH);
         mFb->getTextureDraw()->prepareForDrawLayer();
         int32_t start_id = -1, x, y;
         uint32_t id, w, h, c;
         while(emugl::get_emugl_multi_display_operations().getNextMultiDisplay(start_id, &id,
                                                                               &x, &y, &w, &h,
                                                                               nullptr, nullptr,
                                                                               &c)) {
             if ((id != 0) && (w == 0 || h == 0 || c == 0)) {
                 start_id = id;
                 continue;
             }
             ColorBuffer* multiDisplayCb = id == 0 ? cb : mFb->findColorBuffer(c).get();
             if (multiDisplayCb == nullptr) {
                 ERR("fail to find cb %d\n", c);
                 start_id = id;
                 continue;
             }
             ComposeLayer l;
             hwc_rect_t displayArea = { .left = (int)x,
                                        .top = (int)y,
                                        .right = (int)(x + w),
                                        .bottom = (int)(y + h) };
             hwc_frect_t cropArea = { .left = 0.0,
                                      .top = (float)multiDisplayCb->getHeight(),
                                      .right = (float)multiDisplayCb->getWidth(),
                                      .bottom = 0.0 };
             fillMultiDisplayPostStruct(&l, displayArea, cropArea, rotation);
             multiDisplayCb->postLayer(&l, combinedW, combinedH);
             start_id = id;
         }
         mFb->getTextureDraw()->cleanupForDrawLayer();
     }
     else if (emugl::get_emugl_window_operations().isFolded()) {
         mFb->getTextureDraw()->prepareForDrawLayer();
         ComposeLayer l;
         int x, y, w, h;
         emugl::get_emugl_window_operations().getFoldedArea(&x, &y, &w, &h);
         hwc_rect_t displayArea = { .left = 0,
                                    .top = 0,
                                    .right = windowWidth,
                                    .bottom = windowHeight };
         hwc_frect_t cropArea = { .left = (float)x,
                                  .top = (float)(y + h),
                                  .right = (float)(x + w),
                                  .bottom = (float)y };
         switch ((int)zRot/90) {
             case 1:
                 rotation = HWC_TRANSFORM_ROT_270;
                 break;
             case 2:
                 rotation = HWC_TRANSFORM_ROT_180;
                 break;
             case 3:
                 rotation = HWC_TRANSFORM_ROT_90;
                 break;
             default: ;
         }

         fillMultiDisplayPostStruct(&l, displayArea, cropArea, rotation);
         cb->postLayer(&l, m_viewportWidth/dpr, m_viewportHeight/dpr);
         mFb->getTextureDraw()->cleanupForDrawLayer();
     }
     else {
         // render the color buffer to the window and apply the overlay
         GLuint tex = cb->scale();
         cb->postWithOverlay(tex, zRot, dx, dy);
     }

     s_egl.eglSwapBuffers(mFb->getDisplay(), mFb->getWindowSurface());
 }

 // Called whenever the subwindow needs a refresh (FrameBuffer::setupSubWindow).
 // This rebinds the subwindow context (to account for
 // when the refresh is a display change, for instance)
 // and resets the posting viewport.
 void PostWorker::viewport(int width, int height) {
     // rebind the subwindow eglSurface unconditionally---
     // this could be from a display change
     m_initialized = mBindSubwin();

     float dpr = mFb->getDpr();
     m_viewportWidth = width * dpr;
     m_viewportHeight = height * dpr;
     s_gles2.glViewport(0, 0, m_viewportWidth, m_viewportHeight);
 }

 // Called when the subwindow refreshes, but there is no
 // last posted color buffer to show to the user. Instead of
 // displaying whatever happens to be in the back buffer,
 // clear() is useful for outputting consistent colors.
 void PostWorker::clear() {
 #ifndef __linux__
     // Bug: 166317060 (Except it crashes on iris_dri.so)
     s_gles2.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT |
                     GL_STENCIL_BUFFER_BIT);
     s_egl.eglSwapBuffers(mFb->getDisplay(), mFb->getWindowSurface());
 #endif
 }

 void PostWorker::compose(ComposeDevice* p) {
     // bind the subwindow eglSurface
     if (!m_initialized) {
         m_initialized = mBindSubwin();
     }

     ComposeLayer* l = (ComposeLayer*)p->layer;
     GLint vport[4] = { 0, };
     s_gles2.glGetIntegerv(GL_VIEWPORT, vport);
     s_gles2.glViewport(0, 0, mFb->getWidth(),mFb->getHeight());
     if (!m_composeFbo) {
         s_gles2.glGenFramebuffers(1, &m_composeFbo);
     }
     s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, m_composeFbo);
     s_gles2.glFramebufferTexture2D(GL_FRAMEBUFFER,
                                    GL_COLOR_ATTACHMENT0_OES,
                                    GL_TEXTURE_2D,
                                    mFb->findColorBuffer(p->targetHandle)->getTexture(),
                                    0);

     DD("worker compose %d layers\n", p->numLayers);
     mFb->getTextureDraw()->prepareForDrawLayer();
     for (int i = 0; i < p->numLayers; i++, l++) {
         DD("\tcomposeMode %d color %d %d %d %d blendMode "
                "%d alpha %f transform %d %d %d %d %d "
                "%f %f %f %f\n",
                l->composeMode, l->color.r, l->color.g, l->color.b,
                l->color.a, l->blendMode, l->alpha, l->transform,
                l->displayFrame.left, l->displayFrame.top,
                l->displayFrame.right, l->displayFrame.bottom,
                l->crop.left, l->crop.top, l->crop.right,
                l->crop.bottom);
         composeLayer(l);
     }

     mFb->findColorBuffer(p->targetHandle)->setSync();
     s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, 0);
     s_gles2.glViewport(vport[0], vport[1], vport[2], vport[3]);
     mFb->getTextureDraw()->cleanupForDrawLayer();
 }

 void PostWorker::compose(ComposeDevice_v2* p) {
     // bind the subwindow eglSurface
     if (!m_initialized) {
         m_initialized = mBindSubwin();
     }

     ComposeLayer* l = (ComposeLayer*)p->layer;
     GLint vport[4] = { 0, };
     s_gles2.glGetIntegerv(GL_VIEWPORT, vport);
     s_gles2.glViewport(0, 0, mFb->getWidth(),mFb->getHeight());
     if (!m_composeFbo) {
         s_gles2.glGenFramebuffers(1, &m_composeFbo);
     }
     s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, m_composeFbo);
     s_gles2.glFramebufferTexture2D(GL_FRAMEBUFFER,
                                    GL_COLOR_ATTACHMENT0_OES,
                                    GL_TEXTURE_2D,
                                    mFb->findColorBuffer(p->targetHandle)->getTexture(),
                                    0);

     DD("worker compose %d layers\n", p->numLayers);
     mFb->getTextureDraw()->prepareForDrawLayer();
     for (int i = 0; i < p->numLayers; i++, l++) {
         DD("\tcomposeMode %d color %d %d %d %d blendMode "
                "%d alpha %f transform %d %d %d %d %d "
                "%f %f %f %f\n",
                l->composeMode, l->color.r, l->color.g, l->color.b,
                l->color.a, l->blendMode, l->alpha, l->transform,
                l->displayFrame.left, l->displayFrame.top,
                l->displayFrame.right, l->displayFrame.bottom,
                l->crop.left, l->crop.top, l->crop.right,
                l->crop.bottom);
         composeLayer(l);
     }

     mFb->findColorBuffer(p->targetHandle)->setSync();
     s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, 0);
     s_gles2.glViewport(vport[0], vport[1], vport[2], vport[3]);
     mFb->getTextureDraw()->cleanupForDrawLayer();
 }

 void PostWorker::composeLayer(ComposeLayer* l) {
     if (l->composeMode == HWC2_COMPOSITION_DEVICE) {
         ColorBufferPtr cb = mFb->findColorBuffer(l->cbHandle);
         if (cb == nullptr) {
             // bad colorbuffer handle
             ERR("%s: fail to find colorbuffer %d\n", __FUNCTION__, l->cbHandle);
             return;
         }
         cb->postLayer(l, mFb->getWidth(), mFb->getHeight());
     }
     else {
         // no Colorbuffer associated with SOLID_COLOR mode
         mFb->getTextureDraw()->drawLayer(l, mFb->getWidth(), mFb->getHeight(),
                                          1, 1, 0);
     }
 }

 void PostWorker::screenshot(
     ColorBuffer* cb,
     int width,
     int height,
     GLenum format,
     GLenum type,
     int rotation,
     void* pixels) {
     cb->readPixelsScaled(
         width, height, format, type, rotation, pixels);
 }

 PostWorker::~PostWorker() {
     if (mFb->getDisplay() != EGL_NO_DISPLAY) {
         s_egl.eglMakeCurrent(mFb->getDisplay(), EGL_NO_SURFACE, EGL_NO_SURFACE,
                              EGL_NO_CONTEXT);
     }
 }
	#include "PostWorker.h"

	#include "ColorBuffer.h"
	#include "DispatchTables.h"
	#include "FrameBuffer.h"
	#include "RenderThreadInfo.h"
	#include "OpenGLESDispatch/EGLDispatch.h"
	#include "OpenGLESDispatch/GLESv2Dispatch.h"
	#include "host-common/misc.h"

	#define POST_DEBUG 0
	#if POST_DEBUG >= 1
	#define DD(fmt, ...) \
	fprintf(stderr, "%s:%d\| " fmt, __func__, __LINE__, ##__VA_ARGS__)
	#else
	#define DD(fmt, ...) (void)0
	#endif


	PostWorker::PostWorker(PostWorker::BindSubwinCallback&& cb) :
	mFb(FrameBuffer::getFB()),
	mBindSubwin(cb) {}

	void PostWorker::fillMultiDisplayPostStruct(ComposeLayer* l,
	hwc_rect_t displayArea,
	hwc_frect_t cropArea,
	hwc_transform_t transform) {
	l->composeMode = HWC2_COMPOSITION_DEVICE;
	l->blendMode = HWC2_BLEND_MODE_NONE;
	l->transform = transform;
	l->alpha = 1.0;
	l->displayFrame = displayArea;
	l->crop = cropArea;
	}

	void PostWorker::post(ColorBuffer* cb) {
	// bind the subwindow eglSurface
	if (!m_initialized) {
	m_initialized = mBindSubwin();
	}

	float dpr = mFb->getDpr();
	int windowWidth = mFb->windowWidth();
	int windowHeight = mFb->windowHeight();
	float px = mFb->getPx();
	float py = mFb->getPy();
	int zRot = mFb->getZrot();
	hwc_transform_t rotation = (hwc_transform_t)0;

	cb->waitSync();

	// Find the x and y values at the origin when "fully scrolled."
	// Multiply by 2 because the texture goes from -1 to 1, not 0 to 1.
	// Multiply the windowing coordinates by DPR because they ignore
	// DPR, but the viewport includes DPR.
	float fx = 2.f * (m_viewportWidth - windowWidth * dpr) / (float)m_viewportWidth;
	float fy = 2.f * (m_viewportHeight - windowHeight * dpr) / (float)m_viewportHeight;

	// finally, compute translation values
	float dx = px * fx;
	float dy = py * fy;

	if (emugl::get_emugl_multi_display_operations().isMultiDisplayEnabled()) {
	uint32_t combinedW, combinedH;
	emugl::get_emugl_multi_display_operations().getCombinedDisplaySize(&combinedW, &combinedH);
	mFb->getTextureDraw()->prepareForDrawLayer();
	int32_t start_id = -1, x, y;
	uint32_t id, w, h, c;
	while(emugl::get_emugl_multi_display_operations().getNextMultiDisplay(start_id, &id,
	&x, &y, &w, &h,
	nullptr, nullptr,
	&c)) {
	if ((id != 0) && (w == 0 \|\| h == 0 \|\| c == 0)) {
	start_id = id;
	continue;
	}
	ColorBuffer* multiDisplayCb = id == 0 ? cb : mFb->findColorBuffer(c).get();
	if (multiDisplayCb == nullptr) {
	ERR("fail to find cb %d\n", c);
	start_id = id;
	continue;
	}
	ComposeLayer l;
	hwc_rect_t displayArea = { .left = (int)x,
	.top = (int)y,
	.right = (int)(x + w),
	.bottom = (int)(y + h) };
	hwc_frect_t cropArea = { .left = 0.0,
	.top = (float)multiDisplayCb->getHeight(),
	.right = (float)multiDisplayCb->getWidth(),
	.bottom = 0.0 };
	fillMultiDisplayPostStruct(&l, displayArea, cropArea, rotation);
	multiDisplayCb->postLayer(&l, combinedW, combinedH);
	start_id = id;
	}
	mFb->getTextureDraw()->cleanupForDrawLayer();
	}
	else if (emugl::get_emugl_window_operations().isFolded()) {
	mFb->getTextureDraw()->prepareForDrawLayer();
	ComposeLayer l;
	int x, y, w, h;
	emugl::get_emugl_window_operations().getFoldedArea(&x, &y, &w, &h);
	hwc_rect_t displayArea = { .left = 0,
	.top = 0,
	.right = windowWidth,
	.bottom = windowHeight };
	hwc_frect_t cropArea = { .left = (float)x,
	.top = (float)(y + h),
	.right = (float)(x + w),
	.bottom = (float)y };
	switch ((int)zRot/90) {
	case 1:
	rotation = HWC_TRANSFORM_ROT_270;
	break;
	case 2:
	rotation = HWC_TRANSFORM_ROT_180;
	break;
	case 3:
	rotation = HWC_TRANSFORM_ROT_90;
	break;
	default: ;
	}

	fillMultiDisplayPostStruct(&l, displayArea, cropArea, rotation);
	cb->postLayer(&l, m_viewportWidth/dpr, m_viewportHeight/dpr);
	mFb->getTextureDraw()->cleanupForDrawLayer();
	}
	else {
	// render the color buffer to the window and apply the overlay
	GLuint tex = cb->scale();
	cb->postWithOverlay(tex, zRot, dx, dy);
	}

	s_egl.eglSwapBuffers(mFb->getDisplay(), mFb->getWindowSurface());
	}

	// Called whenever the subwindow needs a refresh (FrameBuffer::setupSubWindow).
	// This rebinds the subwindow context (to account for
	// when the refresh is a display change, for instance)
	// and resets the posting viewport.
	void PostWorker::viewport(int width, int height) {
	// rebind the subwindow eglSurface unconditionally---
	// this could be from a display change
	m_initialized = mBindSubwin();

	float dpr = mFb->getDpr();
	m_viewportWidth = width * dpr;
	m_viewportHeight = height * dpr;
	s_gles2.glViewport(0, 0, m_viewportWidth, m_viewportHeight);
	}

	// Called when the subwindow refreshes, but there is no
	// last posted color buffer to show to the user. Instead of
	// displaying whatever happens to be in the back buffer,
	// clear() is useful for outputting consistent colors.
	void PostWorker::clear() {
	#ifndef __linux__
	// Bug: 166317060 (Except it crashes on iris_dri.so)
	s_gles2.glClear(GL_COLOR_BUFFER_BIT \| GL_DEPTH_BUFFER_BIT \|
	GL_STENCIL_BUFFER_BIT);
	s_egl.eglSwapBuffers(mFb->getDisplay(), mFb->getWindowSurface());
	#endif
	}

	void PostWorker::compose(ComposeDevice* p) {
	// bind the subwindow eglSurface
	if (!m_initialized) {
	m_initialized = mBindSubwin();
	}

	ComposeLayer* l = (ComposeLayer*)p->layer;
	GLint vport[4] = { 0, };
	s_gles2.glGetIntegerv(GL_VIEWPORT, vport);
	s_gles2.glViewport(0, 0, mFb->getWidth(),mFb->getHeight());
	if (!m_composeFbo) {
	s_gles2.glGenFramebuffers(1, &m_composeFbo);
	}
	s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, m_composeFbo);
	s_gles2.glFramebufferTexture2D(GL_FRAMEBUFFER,
	GL_COLOR_ATTACHMENT0_OES,
	GL_TEXTURE_2D,
	mFb->findColorBuffer(p->targetHandle)->getTexture(),
	0);

	DD("worker compose %d layers\n", p->numLayers);
	mFb->getTextureDraw()->prepareForDrawLayer();
	for (int i = 0; i < p->numLayers; i++, l++) {
	DD("\tcomposeMode %d color %d %d %d %d blendMode "
	"%d alpha %f transform %d %d %d %d %d "
	"%f %f %f %f\n",
	l->composeMode, l->color.r, l->color.g, l->color.b,
	l->color.a, l->blendMode, l->alpha, l->transform,
	l->displayFrame.left, l->displayFrame.top,
	l->displayFrame.right, l->displayFrame.bottom,
	l->crop.left, l->crop.top, l->crop.right,
	l->crop.bottom);
	composeLayer(l);
	}

	mFb->findColorBuffer(p->targetHandle)->setSync();
	s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, 0);
	s_gles2.glViewport(vport[0], vport[1], vport[2], vport[3]);
	mFb->getTextureDraw()->cleanupForDrawLayer();
	}

	void PostWorker::compose(ComposeDevice_v2* p) {
	// bind the subwindow eglSurface
	if (!m_initialized) {
	m_initialized = mBindSubwin();
	}

	ComposeLayer* l = (ComposeLayer*)p->layer;
	GLint vport[4] = { 0, };
	s_gles2.glGetIntegerv(GL_VIEWPORT, vport);
	s_gles2.glViewport(0, 0, mFb->getWidth(),mFb->getHeight());
	if (!m_composeFbo) {
	s_gles2.glGenFramebuffers(1, &m_composeFbo);
	}
	s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, m_composeFbo);
	s_gles2.glFramebufferTexture2D(GL_FRAMEBUFFER,
	GL_COLOR_ATTACHMENT0_OES,
	GL_TEXTURE_2D,
	mFb->findColorBuffer(p->targetHandle)->getTexture(),
	0);

	DD("worker compose %d layers\n", p->numLayers);
	mFb->getTextureDraw()->prepareForDrawLayer();
	for (int i = 0; i < p->numLayers; i++, l++) {
	DD("\tcomposeMode %d color %d %d %d %d blendMode "
	"%d alpha %f transform %d %d %d %d %d "
	"%f %f %f %f\n",
	l->composeMode, l->color.r, l->color.g, l->color.b,
	l->color.a, l->blendMode, l->alpha, l->transform,
	l->displayFrame.left, l->displayFrame.top,
	l->displayFrame.right, l->displayFrame.bottom,
	l->crop.left, l->crop.top, l->crop.right,
	l->crop.bottom);
	composeLayer(l);
	}

	mFb->findColorBuffer(p->targetHandle)->setSync();
	s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, 0);
	s_gles2.glViewport(vport[0], vport[1], vport[2], vport[3]);
	mFb->getTextureDraw()->cleanupForDrawLayer();
	}

	void PostWorker::composeLayer(ComposeLayer* l) {
	if (l->composeMode == HWC2_COMPOSITION_DEVICE) {
	ColorBufferPtr cb = mFb->findColorBuffer(l->cbHandle);
	if (cb == nullptr) {
	// bad colorbuffer handle
	ERR("%s: fail to find colorbuffer %d\n", __FUNCTION__, l->cbHandle);
	return;
	}
	cb->postLayer(l, mFb->getWidth(), mFb->getHeight());
	}
	else {
	// no Colorbuffer associated with SOLID_COLOR mode
	mFb->getTextureDraw()->drawLayer(l, mFb->getWidth(), mFb->getHeight(),
	1, 1, 0);
	}
	}

	void PostWorker::screenshot(
	ColorBuffer* cb,
	int width,
	int height,
	GLenum format,
	GLenum type,
	int rotation,
	void* pixels) {
	cb->readPixelsScaled(
	width, height, format, type, rotation, pixels);
	}

	PostWorker::~PostWorker() {
	if (mFb->getDisplay() != EGL_NO_DISPLAY) {
	s_egl.eglMakeCurrent(mFb->getDisplay(), EGL_NO_SURFACE, EGL_NO_SURFACE,
	EGL_NO_CONTEXT);
	}
	}