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https://github.com/glfw/glfw.git
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Add GLFW_CONTEXT_RENDERER
This window hint allows choosing between hardware and software renderers (where available) for the created OpenGL or OpenGL ES context. Fixes #589.
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@ -160,6 +160,8 @@ information on what to include when reporting a bug.
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(#749,#842)
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- Added `GLFW_JOYSTICK_HAT_BUTTONS` init hint (#889)
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- Added `GLFW_LOCK_KEY_MODS` input mode and `GLFW_MOD_*_LOCK` mod bits (#946)
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- Added `GLFW_CONTEXT_RENDERER` window hint and `GLFW_HARDWARE_RENDERER` and
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`GLFW_SOFTWARE_RENDERER` hint values (#589)
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- Added macOS specific `GLFW_COCOA_RETINA_FRAMEBUFFER` window hint
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- Added macOS specific `GLFW_COCOA_FRAME_AUTOSAVE` window hint (#195)
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- Added macOS specific `GLFW_COCOA_GRAPHICS_SWITCHING` window hint (#377,#935)
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@ -339,6 +339,11 @@ the selected API.
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in a single process will cause the application to segfault. Stick to one API or
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the other on Linux for now.
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@anchor GLFW_CONTEXT_RENDERER_hint
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__GLFW_CONTEXT_RENDERER__ specifies whether to create the context using
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a hardware or software renderer, if that is possible to control on the current
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platform.
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@anchor GLFW_CONTEXT_VERSION_MAJOR_hint
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@anchor GLFW_CONTEXT_VERSION_MINOR_hint
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__GLFW_CONTEXT_VERSION_MAJOR__ and __GLFW_CONTEXT_VERSION_MINOR__ specify the
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@ -496,6 +501,7 @@ GLFW_SRGB_CAPABLE | `GLFW_FALSE` | `GLFW_TRUE` or `GL
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GLFW_DOUBLEBUFFER | `GLFW_TRUE` | `GLFW_TRUE` or `GLFW_FALSE`
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GLFW_CLIENT_API | `GLFW_OPENGL_API` | `GLFW_OPENGL_API`, `GLFW_OPENGL_ES_API` or `GLFW_NO_API`
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GLFW_CONTEXT_CREATION_API | `GLFW_NATIVE_CONTEXT_API` | `GLFW_NATIVE_CONTEXT_API`, `GLFW_EGL_CONTEXT_API` or `GLFW_OSMESA_CONTEXT_API`
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GLFW_CONTEXT_RENDERER | `GLFW_HARDWARE_RENDERER` | `GLFW_HARDWARE_RENDERER` or `GLFW_SOFTWARE_RENDERER`
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GLFW_CONTEXT_VERSION_MAJOR | 1 | Any valid major version number of the chosen client API
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GLFW_CONTEXT_VERSION_MINOR | 0 | Any valid minor version number of the chosen client API
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GLFW_CONTEXT_ROBUSTNESS | `GLFW_NO_ROBUSTNESS` | `GLFW_NO_ROBUSTNESS`, `GLFW_NO_RESET_NOTIFICATION` or `GLFW_LOSE_CONTEXT_ON_RESET`
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@ -962,6 +962,7 @@ extern "C" {
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* [attribute](@ref GLFW_CLIENT_API_attrib).
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*/
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#define GLFW_CONTEXT_CREATION_API 0x0002200B
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#define GLFW_CONTEXT_RENDERER 0x0002200C
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#define GLFW_COCOA_RETINA_FRAMEBUFFER 0x00023001
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#define GLFW_COCOA_FRAME_AUTOSAVE 0x00023002
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@ -997,6 +998,9 @@ extern "C" {
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#define GLFW_EGL_CONTEXT_API 0x00036002
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#define GLFW_OSMESA_CONTEXT_API 0x00036003
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#define GLFW_HARDWARE_RENDERER 0x00037001
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#define GLFW_SOFTWARE_RENDERER 0x00037002
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/*! @defgroup shapes Standard cursor shapes
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* @brief Standard system cursor shapes.
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*
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@ -50,6 +50,15 @@ GLFWbool _glfwIsValidContextConfig(const _GLFWctxconfig* ctxconfig)
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return GLFW_FALSE;
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}
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if (ctxconfig->renderer != GLFW_HARDWARE_RENDERER &&
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ctxconfig->renderer != GLFW_SOFTWARE_RENDERER)
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{
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_glfwInputError(GLFW_INVALID_ENUM,
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"Invalid context renderer 0x%08X",
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ctxconfig->renderer);
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return GLFW_FALSE;
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}
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if (ctxconfig->client != GLFW_NO_API &&
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ctxconfig->client != GLFW_OPENGL_API &&
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ctxconfig->client != GLFW_OPENGL_ES_API)
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@ -460,6 +460,9 @@ GLFWbool _glfwCreateContextGLX(_GLFWwindow* window,
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return GLFW_FALSE;
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}
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if (ctxconfig->renderer == GLFW_SOFTWARE_RENDERER)
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setenv("LIBGL_ALWAYS_SOFTWARE", "1", 1);
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if (ctxconfig->client == GLFW_OPENGL_ES_API)
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{
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if (!_glfw.glx.ARB_create_context ||
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@ -330,6 +330,7 @@ struct _GLFWctxconfig
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int profile;
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int robustness;
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int release;
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int renderer;
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_GLFWwindow* share;
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struct {
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GLFWbool offline;
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@ -26,6 +26,8 @@
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#include "internal.h"
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#include <OpenGL/CGLRenderers.h>
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static void makeContextCurrentNSGL(_GLFWwindow* window)
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{
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@ -165,9 +167,17 @@ GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
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NSOpenGLPixelFormatAttribute attribs[40];
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int index = 0;
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addAttrib(NSOpenGLPFAAccelerated);
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addAttrib(NSOpenGLPFAClosestPolicy);
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if (ctxconfig->renderer == GLFW_HARDWARE_RENDERER)
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{
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addAttrib(NSOpenGLPFAAccelerated);
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}
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else if (ctxconfig->renderer == GLFW_SOFTWARE_RENDERER)
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{
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setAttrib(NSOpenGLPFARendererID, kCGLRendererGenericFloatID);
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}
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if (ctxconfig->nsgl.offline)
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{
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addAttrib(NSOpenGLPFAAllowOfflineRenderers);
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@ -100,10 +100,21 @@ static int choosePixelFormat(_GLFWwindow* window,
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continue;
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}
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if (getPixelFormatAttrib(window, n, WGL_ACCELERATION_ARB) ==
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WGL_NO_ACCELERATION_ARB)
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if (ctxconfig->renderer == GLFW_HARDWARE_RENDERER)
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{
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continue;
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if (getPixelFormatAttrib(window, n, WGL_ACCELERATION_ARB) ==
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WGL_NO_ACCELERATION_ARB)
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{
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continue;
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}
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}
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else if (ctxconfig->renderer == GLFW_SOFTWARE_RENDERER)
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{
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if (getPixelFormatAttrib(window, n, WGL_ACCELERATION_ARB) !=
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WGL_NO_ACCELERATION_ARB)
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{
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continue;
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}
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}
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u->redBits = getPixelFormatAttrib(window, n, WGL_RED_BITS_ARB);
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@ -170,10 +181,21 @@ static int choosePixelFormat(_GLFWwindow* window,
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continue;
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}
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if (!(pfd.dwFlags & PFD_GENERIC_ACCELERATED) &&
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(pfd.dwFlags & PFD_GENERIC_FORMAT))
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if (ctxconfig->renderer == GLFW_HARDWARE_RENDERER)
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{
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continue;
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if (!(pfd.dwFlags & PFD_GENERIC_ACCELERATED) &&
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(pfd.dwFlags & PFD_GENERIC_FORMAT))
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{
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continue;
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}
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}
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else if (ctxconfig->renderer == GLFW_SOFTWARE_RENDERER)
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{
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if ((pfd.dwFlags & PFD_GENERIC_ACCELERATED) &&
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!(pfd.dwFlags & PFD_GENERIC_FORMAT))
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{
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continue;
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}
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}
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if (pfd.iPixelType != PFD_TYPE_RGBA)
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12
src/window.c
12
src/window.c
@ -239,10 +239,11 @@ void glfwDefaultWindowHints(void)
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// The default is OpenGL with minimum version 1.0
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memset(&_glfw.hints.context, 0, sizeof(_glfw.hints.context));
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_glfw.hints.context.client = GLFW_OPENGL_API;
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_glfw.hints.context.source = GLFW_NATIVE_CONTEXT_API;
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_glfw.hints.context.major = 1;
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_glfw.hints.context.minor = 0;
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_glfw.hints.context.client = GLFW_OPENGL_API;
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_glfw.hints.context.source = GLFW_NATIVE_CONTEXT_API;
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_glfw.hints.context.renderer = GLFW_HARDWARE_RENDERER;
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_glfw.hints.context.major = 1;
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_glfw.hints.context.minor = 0;
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// The default is a focused, visible, resizable window with decorations
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memset(&_glfw.hints.window, 0, sizeof(_glfw.hints.window));
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@ -364,6 +365,9 @@ GLFWAPI void glfwWindowHint(int hint, int value)
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case GLFW_CONTEXT_CREATION_API:
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_glfw.hints.context.source = value;
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return;
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case GLFW_CONTEXT_RENDERER:
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_glfw.hints.context.renderer = value;
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return;
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case GLFW_CONTEXT_VERSION_MAJOR:
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_glfw.hints.context.major = value;
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return;
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@ -54,6 +54,9 @@
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#define BEHAVIOR_NAME_NONE "none"
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#define BEHAVIOR_NAME_FLUSH "flush"
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#define RENDERER_NAME_HW "hw"
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#define RENDERER_NAME_SW "sw"
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static void usage(void)
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{
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printf("Usage: glfwinfo [OPTION]...\n");
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@ -68,6 +71,9 @@ static void usage(void)
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API_NAME_NATIVE " or "
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API_NAME_EGL " or "
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API_NAME_OSMESA ")\n");
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printf(" --renderer=RENDERER the renderer to use ("
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RENDERER_NAME_HW " or "
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RENDERER_NAME_SW ")\n");
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printf(" -d, --debug request a debug context\n");
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printf(" -f, --forward require a forward-compatible context\n");
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printf(" -h, --help show this help\n");
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@ -365,7 +371,8 @@ int main(int argc, char** argv)
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GLenum error;
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GLFWwindow* window;
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enum { CLIENT, CONTEXT, BEHAVIOR, DEBUG, FORWARD, HELP, EXTENSIONS, LAYERS,
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enum { CLIENT, CONTEXT, RENDERER, BEHAVIOR, DEBUG, FORWARD,
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HELP, EXTENSIONS, LAYERS,
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MAJOR, MINOR, PROFILE, ROBUSTNESS, VERSION,
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REDBITS, GREENBITS, BLUEBITS, ALPHABITS, DEPTHBITS, STENCILBITS,
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ACCUMREDBITS, ACCUMGREENBITS, ACCUMBLUEBITS, ACCUMALPHABITS,
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@ -375,6 +382,7 @@ int main(int argc, char** argv)
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{ "behavior", 1, NULL, BEHAVIOR },
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{ "client-api", 1, NULL, CLIENT },
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{ "context-api", 1, NULL, CONTEXT },
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{ "renderer", 1, NULL, RENDERER },
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{ "debug", 0, NULL, DEBUG },
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{ "forward", 0, NULL, FORWARD },
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{ "help", 0, NULL, HELP },
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@ -464,6 +472,17 @@ int main(int argc, char** argv)
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exit(EXIT_FAILURE);
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}
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break;
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case RENDERER:
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if (strcasecmp(optarg, RENDERER_NAME_HW) == 0)
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glfwWindowHint(GLFW_CONTEXT_RENDERER, GLFW_HARDWARE_RENDERER);
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else if (strcasecmp(optarg, RENDERER_NAME_SW) == 0)
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glfwWindowHint(GLFW_CONTEXT_RENDERER, GLFW_SOFTWARE_RENDERER);
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else
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{
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usage();
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exit(EXIT_FAILURE);
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}
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break;
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case 'd':
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case DEBUG:
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glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
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