| Summary: | swr software rasterizer fall back to OpenGL 2.1 | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Haipeng Wang <wanghaipeng03> |
| Component: | Drivers/Gallium/swr | Assignee: | mesa-dev |
| Status: | RESOLVED FIXED | QA Contact: | mesa-dev |
| Severity: | normal | ||
| Priority: | medium | ||
| Version: | 19.0 | ||
| Hardware: | x86-64 (AMD64) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
Thanks for reporting this, and for the sample program. We are looking into this. Fixed in 19.0.6: https://www.mesa3d.org/relnotes/19.0.6.html Closing at of last comment. Suspecting that the issue was resolved by commit "meson: expose glapi through osmesa" which landed in Mesa 19.0.5. Feel free to reopen if the issue persists. |
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glGetString(GL_EXTENSIONS) returns no GL_EXT_framebuffer_sRGB, which is required by OpenGL 3.0 (src/mesa/main/version.c compute_version)。so glGetString(GL_VERSION) fall back to OpenGL 2.1。 #include <stdio.h> #include <stdlib.h> #define GL_GLEXT_PROTOTYPES #include <GL/osmesa.h> //#include <GL/glext.h> // settings const unsigned int SCR_WIDTH = 960; const unsigned int SCR_HEIGHT = 562; int main(void) { OSMesaContext ctx; ctx = OSMesaCreateContextExt(OSMESA_RGBA, 16, 0, 0, NULL); GLubyte *buffer = malloc(SCR_WIDTH * SCR_HEIGHT * 4 * sizeof(GLubyte)); OSMesaMakeCurrent(ctx, buffer, GL_UNSIGNED_BYTE, SCR_WIDTH, SCR_HEIGHT); printf("GL_RENDERER = %s\n", (char*)glGetString(GL_RENDERER)); printf("GL_VERSION = %s\n", (char*)glGetString(GL_VERSION)); printf("GL_VENDOR = %s\n", (char*)glGetString(GL_VENDOR)); printf("GL_SHADING_LANGUAGE_VERSION = %s\n", (char*)glGetString(GL_SHADING_LANGUAGE_VERSION)); printf("GL_EXTESIONS = %s\n", (char*)glGetString(GL_EXTENSIONS)); return 0; }