diff options
| -rw-r--r-- | src/mesa/main/debug.c | 101 | ||||
| -rw-r--r-- | src/mesa/main/debug.h | 9 |
2 files changed, 110 insertions, 0 deletions
diff --git a/src/mesa/main/debug.c b/src/mesa/main/debug.c index 2eabcdaf493..80bc6afc4c2 100644 --- a/src/mesa/main/debug.c +++ b/src/mesa/main/debug.c @@ -341,3 +341,104 @@ _mesa_dump_textures(GLboolean dumpImages) DumpImages = dumpImages; _mesa_HashWalk(ctx->Shared->TexObjects, dump_texture_cb, ctx); } + + +void +_mesa_dump_color_buffer(const char *filename) +{ + GET_CURRENT_CONTEXT(ctx); + const GLuint w = ctx->DrawBuffer->Width; + const GLuint h = ctx->DrawBuffer->Height; + GLubyte *buf; + + buf = (GLubyte *) _mesa_malloc(w * h * 4); + + glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT); + glPixelStorei(GL_PACK_ALIGNMENT, 1); + glPixelStorei(GL_PACK_INVERT_MESA, GL_TRUE); + + glReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, buf); + + _mesa_printf("ReadBuffer %p 0x%x DrawBuffer %p 0x%x\n", + ctx->ReadBuffer->_ColorReadBuffer, + ctx->ReadBuffer->ColorReadBuffer, + ctx->DrawBuffer->_ColorDrawBuffers[0], + ctx->DrawBuffer->ColorDrawBuffer[0]); + _mesa_printf("Writing %d x %d color buffer to %s\n", w, h, filename); + write_ppm(filename, buf, w, h, 4, 0, 1, 2); + + glPopClientAttrib(); + + _mesa_free(buf); +} + + +void +_mesa_dump_depth_buffer(const char *filename) +{ + GET_CURRENT_CONTEXT(ctx); + const GLuint w = ctx->DrawBuffer->Width; + const GLuint h = ctx->DrawBuffer->Height; + GLuint *buf; + GLubyte *buf2; + GLuint i; + + buf = (GLuint *) _mesa_malloc(w * h * 4); /* 4 bpp */ + buf2 = (GLubyte *) _mesa_malloc(w * h * 3); /* 3 bpp */ + + glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT); + glPixelStorei(GL_PACK_ALIGNMENT, 1); + glPixelStorei(GL_PACK_INVERT_MESA, GL_TRUE); + + glReadPixels(0, 0, w, h, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, buf); + + /* spread 24 bits of Z across R, G, B */ + for (i = 0; i < w * h; i++) { + buf2[i*3+0] = (buf[i] >> 24) & 0xff; + buf2[i*3+1] = (buf[i] >> 16) & 0xff; + buf2[i*3+2] = (buf[i] >> 8) & 0xff; + } + + _mesa_printf("Writing %d x %d depth buffer to %s\n", w, h, filename); + write_ppm(filename, buf2, w, h, 3, 0, 1, 2); + + glPopClientAttrib(); + + _mesa_free(buf); + _mesa_free(buf2); +} + + +void +_mesa_dump_stencil_buffer(const char *filename) +{ + GET_CURRENT_CONTEXT(ctx); + const GLuint w = ctx->DrawBuffer->Width; + const GLuint h = ctx->DrawBuffer->Height; + GLubyte *buf; + GLubyte *buf2; + GLuint i; + + buf = (GLubyte *) _mesa_malloc(w * h); /* 1 bpp */ + buf2 = (GLubyte *) _mesa_malloc(w * h * 3); /* 3 bpp */ + + glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT); + glPixelStorei(GL_PACK_ALIGNMENT, 1); + glPixelStorei(GL_PACK_INVERT_MESA, GL_TRUE); + + glReadPixels(0, 0, w, h, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, buf); + + for (i = 0; i < w * h; i++) { + buf2[i*3+0] = buf[i]; + buf2[i*3+1] = (buf[i] & 127) * 2; + buf2[i*3+2] = (buf[i] - 128) * 2; + } + + _mesa_printf("Writing %d x %d stencil buffer to %s\n", w, h, filename); + write_ppm(filename, buf2, w, h, 3, 0, 1, 2); + + glPopClientAttrib(); + + _mesa_free(buf); + _mesa_free(buf2); +} diff --git a/src/mesa/main/debug.h b/src/mesa/main/debug.h index 1862ec75b7b..bb384c43242 100644 --- a/src/mesa/main/debug.h +++ b/src/mesa/main/debug.h @@ -60,4 +60,13 @@ extern void _mesa_init_debug( GLcontext *ctx ); extern void _mesa_dump_textures(GLboolean dumpImages); +extern void +_mesa_dump_color_buffer(const char *filename); + +extern void +_mesa_dump_depth_buffer(const char *filename); + +extern void +_mesa_dump_stencil_buffer(const char *filename); + #endif |