| // SwiftShader Software Renderer | |
| // | |
| // Copyright(c) 2005-2013 TransGaming Inc. | |
| // | |
| // All rights reserved. No part of this software may be copied, distributed, transmitted, | |
| // transcribed, stored in a retrieval system, translated into any human or computer | |
| // language by any means, or disclosed to third parties without the explicit written | |
| // agreement of TransGaming Inc. Without such an agreement, no rights or licenses, express | |
| // or implied, including but not limited to any patent rights, are granted to you. | |
| // | |
| // Display.cpp: Implements the egl::Display class, representing the abstract | |
| // display on which graphics are drawn. Implements EGLDisplay. | |
| // [EGL 1.4] section 2.1.2 page 3. | |
| #include "Display.h" | |
| #include "main.h" | |
| #include "libEGL/Surface.h" | |
| #include "libEGL/Context.hpp" | |
| #include "common/debug.h" | |
| #include <algorithm> | |
| #include <vector> | |
| #include <map> | |
| namespace egl | |
| { | |
| typedef std::map<EGLNativeDisplayType, Display*> DisplayMap; | |
| DisplayMap displays; | |
| egl::Display *Display::getDisplay(EGLNativeDisplayType displayId) | |
| { | |
| if(displays.find(displayId) != displays.end()) | |
| { | |
| return displays[displayId]; | |
| } | |
| egl::Display *display = NULL; | |
| if(displayId == EGL_DEFAULT_DISPLAY) | |
| { | |
| display = new egl::Display(displayId); | |
| } | |
| else | |
| { | |
| // FIXME: Check if displayId is a valid display device context | |
| display = new egl::Display(displayId); | |
| } | |
| displays[displayId] = display; | |
| return display; | |
| } | |
| Display::Display(EGLNativeDisplayType displayId) : displayId(displayId) | |
| { | |
| mMinSwapInterval = 1; | |
| mMaxSwapInterval = 1; | |
| } | |
| Display::~Display() | |
| { | |
| terminate(); | |
| displays.erase(displayId); | |
| } | |
| static void cpuid(int registers[4], int info) | |
| { | |
| #if defined(_WIN32) | |
| __cpuid(registers, info); | |
| #else | |
| __asm volatile("cpuid": "=a" (registers[0]), "=b" (registers[1]), "=c" (registers[2]), "=d" (registers[3]): "a" (info)); | |
| #endif | |
| } | |
| static bool detectSSE() | |
| { | |
| #if defined(__APPLE__) | |
| int SSE = false; | |
| size_t length = sizeof(SSE); | |
| sysctlbyname("hw.optional.sse", &SSE, &length, 0, 0); | |
| return SSE; | |
| #else | |
| int registers[4]; | |
| cpuid(registers, 1); | |
| return (registers[3] & 0x02000000) != 0; | |
| #endif | |
| } | |
| bool Display::initialize() | |
| { | |
| if(isInitialized()) | |
| { | |
| return true; | |
| } | |
| if(!detectSSE()) | |
| { | |
| return false; | |
| } | |
| mMinSwapInterval = 0; | |
| mMaxSwapInterval = 4; | |
| const sw::Format renderTargetFormats[] = | |
| { | |
| sw::FORMAT_A1R5G5B5, | |
| // sw::FORMAT_A2R10G10B10, // The color_ramp conformance test uses ReadPixels with UNSIGNED_BYTE causing it to think that rendering skipped a colour value. | |
| sw::FORMAT_A8R8G8B8, | |
| sw::FORMAT_R5G6B5, | |
| // sw::FORMAT_X1R5G5B5, // Has no compatible OpenGL ES renderbuffer format | |
| sw::FORMAT_X8R8G8B8 | |
| }; | |
| const sw::Format depthStencilFormats[] = | |
| { | |
| sw::FORMAT_NULL, | |
| // sw::FORMAT_D16_LOCKABLE, | |
| sw::FORMAT_D32, | |
| // sw::FORMAT_D15S1, | |
| sw::FORMAT_D24S8, | |
| sw::FORMAT_D24X8, | |
| // sw::FORMAT_D24X4S4, | |
| sw::FORMAT_D16, | |
| // sw::FORMAT_D32F_LOCKABLE, | |
| // sw::FORMAT_D24FS8 | |
| }; | |
| DisplayMode currentDisplayMode = getDisplayMode(); | |
| ConfigSet configSet; | |
| for(int formatIndex = 0; formatIndex < sizeof(renderTargetFormats) / sizeof(sw::Format); formatIndex++) | |
| { | |
| sw::Format renderTargetFormat = renderTargetFormats[formatIndex]; | |
| for(int depthStencilIndex = 0; depthStencilIndex < sizeof(depthStencilFormats) / sizeof(sw::Format); depthStencilIndex++) | |
| { | |
| sw::Format depthStencilFormat = depthStencilFormats[depthStencilIndex]; | |
| // FIXME: enumerate multi-sampling | |
| configSet.add(currentDisplayMode, mMinSwapInterval, mMaxSwapInterval, renderTargetFormat, depthStencilFormat, 0); | |
| } | |
| } | |
| // Give the sorted configs a unique ID and store them internally | |
| EGLint index = 1; | |
| for(ConfigSet::Iterator config = configSet.mSet.begin(); config != configSet.mSet.end(); config++) | |
| { | |
| Config configuration = *config; | |
| configuration.mConfigID = index; | |
| index++; | |
| mConfigSet.mSet.insert(configuration); | |
| } | |
| if(!isInitialized()) | |
| { | |
| terminate(); | |
| return false; | |
| } | |
| return true; | |
| } | |
| void Display::terminate() | |
| { | |
| while(!mSurfaceSet.empty()) | |
| { | |
| destroySurface(*mSurfaceSet.begin()); | |
| } | |
| while(!mContextSet.empty()) | |
| { | |
| destroyContext(*mContextSet.begin()); | |
| } | |
| } | |
| bool Display::getConfigs(EGLConfig *configs, const EGLint *attribList, EGLint configSize, EGLint *numConfig) | |
| { | |
| return mConfigSet.getConfigs(configs, attribList, configSize, numConfig); | |
| } | |
| bool Display::getConfigAttrib(EGLConfig config, EGLint attribute, EGLint *value) | |
| { | |
| const egl::Config *configuration = mConfigSet.get(config); | |
| switch (attribute) | |
| { | |
| case EGL_BUFFER_SIZE: *value = configuration->mBufferSize; break; | |
| case EGL_ALPHA_SIZE: *value = configuration->mAlphaSize; break; | |
| case EGL_BLUE_SIZE: *value = configuration->mBlueSize; break; | |
| case EGL_GREEN_SIZE: *value = configuration->mGreenSize; break; | |
| case EGL_RED_SIZE: *value = configuration->mRedSize; break; | |
| case EGL_DEPTH_SIZE: *value = configuration->mDepthSize; break; | |
| case EGL_STENCIL_SIZE: *value = configuration->mStencilSize; break; | |
| case EGL_CONFIG_CAVEAT: *value = configuration->mConfigCaveat; break; | |
| case EGL_CONFIG_ID: *value = configuration->mConfigID; break; | |
| case EGL_LEVEL: *value = configuration->mLevel; break; | |
| case EGL_NATIVE_RENDERABLE: *value = configuration->mNativeRenderable; break; | |
| case EGL_NATIVE_VISUAL_ID: *value = configuration->mNativeVisualID; break; | |
| case EGL_NATIVE_VISUAL_TYPE: *value = configuration->mNativeVisualType; break; | |
| case EGL_SAMPLES: *value = configuration->mSamples; break; | |
| case EGL_SAMPLE_BUFFERS: *value = configuration->mSampleBuffers; break; | |
| case EGL_SURFACE_TYPE: *value = configuration->mSurfaceType; break; | |
| case EGL_TRANSPARENT_TYPE: *value = configuration->mTransparentType; break; | |
| case EGL_TRANSPARENT_BLUE_VALUE: *value = configuration->mTransparentBlueValue; break; | |
| case EGL_TRANSPARENT_GREEN_VALUE: *value = configuration->mTransparentGreenValue; break; | |
| case EGL_TRANSPARENT_RED_VALUE: *value = configuration->mTransparentRedValue; break; | |
| case EGL_BIND_TO_TEXTURE_RGB: *value = configuration->mBindToTextureRGB; break; | |
| case EGL_BIND_TO_TEXTURE_RGBA: *value = configuration->mBindToTextureRGBA; break; | |
| case EGL_MIN_SWAP_INTERVAL: *value = configuration->mMinSwapInterval; break; | |
| case EGL_MAX_SWAP_INTERVAL: *value = configuration->mMaxSwapInterval; break; | |
| case EGL_LUMINANCE_SIZE: *value = configuration->mLuminanceSize; break; | |
| case EGL_ALPHA_MASK_SIZE: *value = configuration->mAlphaMaskSize; break; | |
| case EGL_COLOR_BUFFER_TYPE: *value = configuration->mColorBufferType; break; | |
| case EGL_RENDERABLE_TYPE: *value = configuration->mRenderableType; break; | |
| case EGL_MATCH_NATIVE_PIXMAP: *value = false; UNIMPLEMENTED(); break; | |
| case EGL_CONFORMANT: *value = configuration->mConformant; break; | |
| case EGL_MAX_PBUFFER_WIDTH: *value = configuration->mMaxPBufferWidth; break; | |
| case EGL_MAX_PBUFFER_HEIGHT: *value = configuration->mMaxPBufferHeight; break; | |
| case EGL_MAX_PBUFFER_PIXELS: *value = configuration->mMaxPBufferPixels; break; | |
| default: | |
| return false; | |
| } | |
| return true; | |
| } | |
| EGLSurface Display::createWindowSurface(EGLNativeWindowType window, EGLConfig config, const EGLint *attribList) | |
| { | |
| const Config *configuration = mConfigSet.get(config); | |
| if(attribList) | |
| { | |
| while(*attribList != EGL_NONE) | |
| { | |
| switch (attribList[0]) | |
| { | |
| case EGL_RENDER_BUFFER: | |
| switch (attribList[1]) | |
| { | |
| case EGL_BACK_BUFFER: | |
| break; | |
| case EGL_SINGLE_BUFFER: | |
| return error(EGL_BAD_MATCH, EGL_NO_SURFACE); // Rendering directly to front buffer not supported | |
| default: | |
| return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); | |
| } | |
| break; | |
| case EGL_VG_COLORSPACE: | |
| return error(EGL_BAD_MATCH, EGL_NO_SURFACE); | |
| case EGL_VG_ALPHA_FORMAT: | |
| return error(EGL_BAD_MATCH, EGL_NO_SURFACE); | |
| default: | |
| return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); | |
| } | |
| attribList += 2; | |
| } | |
| } | |
| if(hasExistingWindowSurface(window)) | |
| { | |
| return error(EGL_BAD_ALLOC, EGL_NO_SURFACE); | |
| } | |
| Surface *surface = new Surface(this, configuration, window); | |
| if(!surface->initialize()) | |
| { | |
| delete surface; | |
| return EGL_NO_SURFACE; | |
| } | |
| mSurfaceSet.insert(surface); | |
| return success(surface); | |
| } | |
| EGLSurface Display::createOffscreenSurface(EGLConfig config, const EGLint *attribList) | |
| { | |
| EGLint width = 0, height = 0; | |
| EGLenum textureFormat = EGL_NO_TEXTURE; | |
| EGLenum textureTarget = EGL_NO_TEXTURE; | |
| const Config *configuration = mConfigSet.get(config); | |
| if(attribList) | |
| { | |
| while(*attribList != EGL_NONE) | |
| { | |
| switch (attribList[0]) | |
| { | |
| case EGL_WIDTH: | |
| width = attribList[1]; | |
| break; | |
| case EGL_HEIGHT: | |
| height = attribList[1]; | |
| break; | |
| case EGL_LARGEST_PBUFFER: | |
| if(attribList[1] != EGL_FALSE) | |
| UNIMPLEMENTED(); // FIXME | |
| break; | |
| case EGL_TEXTURE_FORMAT: | |
| switch (attribList[1]) | |
| { | |
| case EGL_NO_TEXTURE: | |
| case EGL_TEXTURE_RGB: | |
| case EGL_TEXTURE_RGBA: | |
| textureFormat = attribList[1]; | |
| break; | |
| default: | |
| return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); | |
| } | |
| break; | |
| case EGL_TEXTURE_TARGET: | |
| switch (attribList[1]) | |
| { | |
| case EGL_NO_TEXTURE: | |
| case EGL_TEXTURE_2D: | |
| textureTarget = attribList[1]; | |
| break; | |
| default: | |
| return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); | |
| } | |
| break; | |
| case EGL_MIPMAP_TEXTURE: | |
| if(attribList[1] != EGL_FALSE) | |
| return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); | |
| break; | |
| case EGL_VG_COLORSPACE: | |
| return error(EGL_BAD_MATCH, EGL_NO_SURFACE); | |
| case EGL_VG_ALPHA_FORMAT: | |
| return error(EGL_BAD_MATCH, EGL_NO_SURFACE); | |
| default: | |
| return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); | |
| } | |
| attribList += 2; | |
| } | |
| } | |
| if(width < 0 || height < 0) | |
| { | |
| return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE); | |
| } | |
| if(width == 0 || height == 0) | |
| { | |
| return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); | |
| } | |
| if((textureFormat != EGL_NO_TEXTURE && textureTarget == EGL_NO_TEXTURE) || | |
| (textureFormat == EGL_NO_TEXTURE && textureTarget != EGL_NO_TEXTURE)) | |
| { | |
| return error(EGL_BAD_MATCH, EGL_NO_SURFACE); | |
| } | |
| if(!(configuration->mSurfaceType & EGL_PBUFFER_BIT)) | |
| { | |
| return error(EGL_BAD_MATCH, EGL_NO_SURFACE); | |
| } | |
| if((textureFormat == EGL_TEXTURE_RGB && configuration->mBindToTextureRGB != EGL_TRUE) || | |
| (textureFormat == EGL_TEXTURE_RGBA && configuration->mBindToTextureRGBA != EGL_TRUE)) | |
| { | |
| return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); | |
| } | |
| Surface *surface = new Surface(this, configuration, width, height, textureFormat, textureTarget); | |
| if(!surface->initialize()) | |
| { | |
| delete surface; | |
| return EGL_NO_SURFACE; | |
| } | |
| mSurfaceSet.insert(surface); | |
| return success(surface); | |
| } | |
| EGLContext Display::createContext(EGLConfig configHandle, const egl::Context *shareContext, EGLint clientVersion) | |
| { | |
| const egl::Config *config = mConfigSet.get(configHandle); | |
| egl::Context *context = 0; | |
| if(clientVersion == 1 && config->mRenderableType & EGL_OPENGL_ES_BIT) | |
| { | |
| if(es1::createContext != 0) | |
| { | |
| context = es1::createContext(config, shareContext); | |
| } | |
| } | |
| else if(clientVersion == 2 && config->mRenderableType & EGL_OPENGL_ES2_BIT) | |
| { | |
| if(es2::createContext != 0) | |
| { | |
| context = es2::createContext(config, shareContext); | |
| } | |
| } | |
| else | |
| { | |
| return error(EGL_BAD_CONFIG, EGL_NO_CONTEXT); | |
| } | |
| if(!context) | |
| { | |
| return error(EGL_BAD_ALLOC, EGL_NO_CONTEXT); | |
| } | |
| mContextSet.insert(context); | |
| return success(context);; | |
| } | |
| void Display::destroySurface(egl::Surface *surface) | |
| { | |
| delete surface; | |
| mSurfaceSet.erase(surface); | |
| } | |
| void Display::destroyContext(egl::Context *context) | |
| { | |
| context->destroy(); | |
| mContextSet.erase(context); | |
| } | |
| bool Display::isInitialized() const | |
| { | |
| return mConfigSet.size() > 0; | |
| } | |
| bool Display::isValidConfig(EGLConfig config) | |
| { | |
| return mConfigSet.get(config) != NULL; | |
| } | |
| bool Display::isValidContext(egl::Context *context) | |
| { | |
| return mContextSet.find(context) != mContextSet.end(); | |
| } | |
| bool Display::isValidSurface(egl::Surface *surface) | |
| { | |
| return mSurfaceSet.find(surface) != mSurfaceSet.end(); | |
| } | |
| bool Display::isValidWindow(EGLNativeWindowType window) | |
| { | |
| #if defined(_WIN32) | |
| return IsWindow(window) == TRUE; | |
| #else | |
| XWindowAttributes windowAttributes; | |
| Status status = XGetWindowAttributes(displayId, window, &windowAttributes); | |
| return status == True; | |
| #endif | |
| } | |
| bool Display::hasExistingWindowSurface(EGLNativeWindowType window) | |
| { | |
| for(SurfaceSet::iterator surface = mSurfaceSet.begin(); surface != mSurfaceSet.end(); surface++) | |
| { | |
| if((*surface)->getWindowHandle() == window) | |
| { | |
| return true; | |
| } | |
| } | |
| return false; | |
| } | |
| EGLint Display::getMinSwapInterval() | |
| { | |
| return mMinSwapInterval; | |
| } | |
| EGLint Display::getMaxSwapInterval() | |
| { | |
| return mMaxSwapInterval; | |
| } | |
| EGLNativeDisplayType Display::getNativeDisplay() const | |
| { | |
| return displayId; | |
| } | |
| DisplayMode Display::getDisplayMode() const | |
| { | |
| DisplayMode displayMode = {0}; | |
| #if defined(_WIN32) | |
| HDC deviceContext = GetDC(0); | |
| displayMode.width = ::GetDeviceCaps(deviceContext, HORZRES); | |
| displayMode.height = ::GetDeviceCaps(deviceContext, VERTRES); | |
| unsigned int bpp = ::GetDeviceCaps(deviceContext, BITSPIXEL); | |
| switch(bpp) | |
| { | |
| case 32: displayMode.format = sw::FORMAT_X8R8G8B8; break; | |
| case 24: displayMode.format = sw::FORMAT_R8G8B8; break; | |
| case 16: displayMode.format = sw::FORMAT_R5G6B5; break; | |
| default: | |
| ASSERT(false); // Unexpected display mode color depth | |
| } | |
| ReleaseDC(0, deviceContext); | |
| #else | |
| Screen *screen = XDefaultScreenOfDisplay(displayId); | |
| displayMode.width = XWidthOfScreen(screen); | |
| displayMode.height = XHeightOfScreen(screen); | |
| unsigned int bpp = XPlanesOfScreen(screen); | |
| switch(bpp) | |
| { | |
| case 32: displayMode.format = sw::FORMAT_X8R8G8B8; break; | |
| case 24: displayMode.format = sw::FORMAT_R8G8B8; break; | |
| case 16: displayMode.format = sw::FORMAT_R5G6B5; break; | |
| default: | |
| ASSERT(false); // Unexpected display mode color depth | |
| } | |
| #endif | |
| return displayMode; | |
| } | |
| } |